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@ 52b4a076:e7fad8bd
2025-04-28 00:48:57I have been recently building NFDB, a new relay DB. This post is meant as a short overview.
Regular relays have challenges
Current relay software have significant challenges, which I have experienced when hosting Nostr.land: - Scalability is only supported by adding full replicas, which does not scale to large relays. - Most relays use slow databases and are not optimized for large scale usage. - Search is near-impossible to implement on standard relays. - Privacy features such as NIP-42 are lacking. - Regular DB maintenance tasks on normal relays require extended downtime. - Fault-tolerance is implemented, if any, using a load balancer, which is limited. - Personalization and advanced filtering is not possible. - Local caching is not supported.
NFDB: A scalable database for large relays
NFDB is a new database meant for medium-large scale relays, built on FoundationDB that provides: - Near-unlimited scalability - Extended fault tolerance - Instant loading - Better search - Better personalization - and more.
Search
NFDB has extended search capabilities including: - Semantic search: Search for meaning, not words. - Interest-based search: Highlight content you care about. - Multi-faceted queries: Easily filter by topic, author group, keywords, and more at the same time. - Wide support for event kinds, including users, articles, etc.
Personalization
NFDB allows significant personalization: - Customized algorithms: Be your own algorithm. - Spam filtering: Filter content to your WoT, and use advanced spam filters. - Topic mutes: Mute topics, not keywords. - Media filtering: With Nostr.build, you will be able to filter NSFW and other content - Low data mode: Block notes that use high amounts of cellular data. - and more
Other
NFDB has support for many other features such as: - NIP-42: Protect your privacy with private drafts and DMs - Microrelays: Easily deploy your own personal microrelay - Containers: Dedicated, fast storage for discoverability events such as relay lists
Calcite: A local microrelay database
Calcite is a lightweight, local version of NFDB that is meant for microrelays and caching, meant for thousands of personal microrelays.
Calcite HA is an additional layer that allows live migration and relay failover in under 30 seconds, providing higher availability compared to current relays with greater simplicity. Calcite HA is enabled in all Calcite deployments.
For zero-downtime, NFDB is recommended.
Noswhere SmartCache
Relays are fixed in one location, but users can be anywhere.
Noswhere SmartCache is a CDN for relays that dynamically caches data on edge servers closest to you, allowing: - Multiple regions around the world - Improved throughput and performance - Faster loading times
routerd
routerd
is a custom load-balancer optimized for Nostr relays, integrated with SmartCache.routerd
is specifically integrated with NFDB and Calcite HA to provide fast failover and high performance.Ending notes
NFDB is planned to be deployed to Nostr.land in the coming weeks.
A lot more is to come. 👀️️️️️️
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@ 91bea5cd:1df4451c
2025-04-26 10:16:21O Contexto Legal Brasileiro e o Consentimento
No ordenamento jurídico brasileiro, o consentimento do ofendido pode, em certas circunstâncias, afastar a ilicitude de um ato que, sem ele, configuraria crime (como lesão corporal leve, prevista no Art. 129 do Código Penal). Contudo, o consentimento tem limites claros: não é válido para bens jurídicos indisponíveis, como a vida, e sua eficácia é questionável em casos de lesões corporais graves ou gravíssimas.
A prática de BDSM consensual situa-se em uma zona complexa. Em tese, se ambos os parceiros são adultos, capazes, e consentiram livre e informadamente nos atos praticados, sem que resultem em lesões graves permanentes ou risco de morte não consentido, não haveria crime. O desafio reside na comprovação desse consentimento, especialmente se uma das partes, posteriormente, o negar ou alegar coação.
A Lei Maria da Penha (Lei nº 11.340/2006)
A Lei Maria da Penha é um marco fundamental na proteção da mulher contra a violência doméstica e familiar. Ela estabelece mecanismos para coibir e prevenir tal violência, definindo suas formas (física, psicológica, sexual, patrimonial e moral) e prevendo medidas protetivas de urgência.
Embora essencial, a aplicação da lei em contextos de BDSM pode ser delicada. Uma alegação de violência por parte da mulher, mesmo que as lesões ou situações decorram de práticas consensuais, tende a receber atenção prioritária das autoridades, dada a presunção de vulnerabilidade estabelecida pela lei. Isso pode criar um cenário onde o parceiro masculino enfrenta dificuldades significativas em demonstrar a natureza consensual dos atos, especialmente se não houver provas robustas pré-constituídas.
Outros riscos:
Lesão corporal grave ou gravíssima (art. 129, §§ 1º e 2º, CP), não pode ser justificada pelo consentimento, podendo ensejar persecução penal.
Crimes contra a dignidade sexual (arts. 213 e seguintes do CP) são de ação pública incondicionada e independem de representação da vítima para a investigação e denúncia.
Riscos de Falsas Acusações e Alegação de Coação Futura
Os riscos para os praticantes de BDSM, especialmente para o parceiro que assume o papel dominante ou que inflige dor/restrição (frequentemente, mas não exclusivamente, o homem), podem surgir de diversas frentes:
- Acusações Externas: Vizinhos, familiares ou amigos que desconhecem a natureza consensual do relacionamento podem interpretar sons, marcas ou comportamentos como sinais de abuso e denunciar às autoridades.
- Alegações Futuras da Parceira: Em caso de término conturbado, vingança, arrependimento ou mudança de perspectiva, a parceira pode reinterpretar as práticas passadas como abuso e buscar reparação ou retaliação através de uma denúncia. A alegação pode ser de que o consentimento nunca existiu ou foi viciado.
- Alegação de Coação: Uma das formas mais complexas de refutar é a alegação de que o consentimento foi obtido mediante coação (física, moral, psicológica ou econômica). A parceira pode alegar, por exemplo, que se sentia pressionada, intimidada ou dependente, e que seu "sim" não era genuíno. Provar a ausência de coação a posteriori é extremamente difícil.
- Ingenuidade e Vulnerabilidade Masculina: Muitos homens, confiando na dinâmica consensual e na parceira, podem negligenciar a necessidade de precauções. A crença de que "isso nunca aconteceria comigo" ou a falta de conhecimento sobre as implicações legais e o peso processual de uma acusação no âmbito da Lei Maria da Penha podem deixá-los vulneráveis. A presença de marcas físicas, mesmo que consentidas, pode ser usada como evidência de agressão, invertendo o ônus da prova na prática, ainda que não na teoria jurídica.
Estratégias de Prevenção e Mitigação
Não existe um método infalível para evitar completamente o risco de uma falsa acusação, mas diversas medidas podem ser adotadas para construir um histórico de consentimento e reduzir vulnerabilidades:
- Comunicação Explícita e Contínua: A base de qualquer prática BDSM segura é a comunicação constante. Negociar limites, desejos, palavras de segurança ("safewords") e expectativas antes, durante e depois das cenas é crucial. Manter registros dessas negociações (e-mails, mensagens, diários compartilhados) pode ser útil.
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Documentação do Consentimento:
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Contratos de Relacionamento/Cena: Embora a validade jurídica de "contratos BDSM" seja discutível no Brasil (não podem afastar normas de ordem pública), eles servem como forte evidência da intenção das partes, da negociação detalhada de limites e do consentimento informado. Devem ser claros, datados, assinados e, idealmente, reconhecidos em cartório (para prova de data e autenticidade das assinaturas).
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Registros Audiovisuais: Gravar (com consentimento explícito para a gravação) discussões sobre consentimento e limites antes das cenas pode ser uma prova poderosa. Gravar as próprias cenas é mais complexo devido a questões de privacidade e potencial uso indevido, mas pode ser considerado em casos específicos, sempre com consentimento mútuo documentado para a gravação.
Importante: a gravação deve ser com ciência da outra parte, para não configurar violação da intimidade (art. 5º, X, da Constituição Federal e art. 20 do Código Civil).
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Testemunhas: Em alguns contextos de comunidade BDSM, a presença de terceiros de confiança durante negociações ou mesmo cenas pode servir como testemunho, embora isso possa alterar a dinâmica íntima do casal.
- Estabelecimento Claro de Limites e Palavras de Segurança: Definir e respeitar rigorosamente os limites (o que é permitido, o que é proibido) e as palavras de segurança é fundamental. O desrespeito a uma palavra de segurança encerra o consentimento para aquele ato.
- Avaliação Contínua do Consentimento: O consentimento não é um cheque em branco; ele deve ser entusiástico, contínuo e revogável a qualquer momento. Verificar o bem-estar do parceiro durante a cena ("check-ins") é essencial.
- Discrição e Cuidado com Evidências Físicas: Ser discreto sobre a natureza do relacionamento pode evitar mal-entendidos externos. Após cenas que deixem marcas, é prudente que ambos os parceiros estejam cientes e de acordo, talvez documentando por fotos (com data) e uma nota sobre a consensualidade da prática que as gerou.
- Aconselhamento Jurídico Preventivo: Consultar um advogado especializado em direito de família e criminal, com sensibilidade para dinâmicas de relacionamento alternativas, pode fornecer orientação personalizada sobre as melhores formas de documentar o consentimento e entender os riscos legais específicos.
Observações Importantes
- Nenhuma documentação substitui a necessidade de consentimento real, livre, informado e contínuo.
- A lei brasileira protege a "integridade física" e a "dignidade humana". Práticas que resultem em lesões graves ou que violem a dignidade de forma não consentida (ou com consentimento viciado) serão ilegais, independentemente de qualquer acordo prévio.
- Em caso de acusação, a existência de documentação robusta de consentimento não garante a absolvição, mas fortalece significativamente a defesa, ajudando a demonstrar a natureza consensual da relação e das práticas.
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A alegação de coação futura é particularmente difícil de prevenir apenas com documentos. Um histórico consistente de comunicação aberta (whatsapp/telegram/e-mails), respeito mútuo e ausência de dependência ou controle excessivo na relação pode ajudar a contextualizar a dinâmica como não coercitiva.
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Cuidado com Marcas Visíveis e Lesões Graves Práticas que resultam em hematomas severos ou lesões podem ser interpretadas como agressão, mesmo que consentidas. Evitar excessos protege não apenas a integridade física, mas também evita questionamentos legais futuros.
O que vem a ser consentimento viciado
No Direito, consentimento viciado é quando a pessoa concorda com algo, mas a vontade dela não é livre ou plena — ou seja, o consentimento existe formalmente, mas é defeituoso por alguma razão.
O Código Civil brasileiro (art. 138 a 165) define várias formas de vício de consentimento. As principais são:
Erro: A pessoa se engana sobre o que está consentindo. (Ex.: A pessoa acredita que vai participar de um jogo leve, mas na verdade é exposta a práticas pesadas.)
Dolo: A pessoa é enganada propositalmente para aceitar algo. (Ex.: Alguém mente sobre o que vai acontecer durante a prática.)
Coação: A pessoa é forçada ou ameaçada a consentir. (Ex.: "Se você não aceitar, eu termino com você" — pressão emocional forte pode ser vista como coação.)
Estado de perigo ou lesão: A pessoa aceita algo em situação de necessidade extrema ou abuso de sua vulnerabilidade. (Ex.: Alguém em situação emocional muito fragilizada é induzida a aceitar práticas que normalmente recusaria.)
No contexto de BDSM, isso é ainda mais delicado: Mesmo que a pessoa tenha "assinado" um contrato ou dito "sim", se depois ela alegar que seu consentimento foi dado sob medo, engano ou pressão psicológica, o consentimento pode ser considerado viciado — e, portanto, juridicamente inválido.
Isso tem duas implicações sérias:
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O crime não se descaracteriza: Se houver vício, o consentimento é ignorado e a prática pode ser tratada como crime normal (lesão corporal, estupro, tortura, etc.).
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A prova do consentimento precisa ser sólida: Mostrando que a pessoa estava informada, lúcida, livre e sem qualquer tipo de coação.
Consentimento viciado é quando a pessoa concorda formalmente, mas de maneira enganada, forçada ou pressionada, tornando o consentimento inútil para efeitos jurídicos.
Conclusão
Casais que praticam BDSM consensual no Brasil navegam em um terreno que exige não apenas confiança mútua e comunicação excepcional, mas também uma consciência aguçada das complexidades legais e dos riscos de interpretações equivocadas ou acusações mal-intencionadas. Embora o BDSM seja uma expressão legítima da sexualidade humana, sua prática no Brasil exige responsabilidade redobrada. Ter provas claras de consentimento, manter a comunicação aberta e agir com prudência são formas eficazes de se proteger de falsas alegações e preservar a liberdade e a segurança de todos os envolvidos. Embora leis controversas como a Maria da Penha sejam "vitais" para a proteção contra a violência real, os praticantes de BDSM, e em particular os homens nesse contexto, devem adotar uma postura proativa e prudente para mitigar os riscos inerentes à potencial má interpretação ou instrumentalização dessas práticas e leis, garantindo que a expressão de sua consensualidade esteja resguardada na medida do possível.
Importante: No Brasil, mesmo com tudo isso, o Ministério Público pode denunciar por crime como lesão corporal grave, estupro ou tortura, independente de consentimento. Então a prudência nas práticas é fundamental.
Aviso Legal: Este artigo tem caráter meramente informativo e não constitui aconselhamento jurídico. As leis e interpretações podem mudar, e cada situação é única. Recomenda-se buscar orientação de um advogado qualificado para discutir casos específicos.
Se curtiu este artigo faça uma contribuição, se tiver algum ponto relevante para o artigo deixe seu comentário.
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@ 6e0ea5d6:0327f353
2025-02-21 18:15:52"Malcolm Forbes recounts that a lady, wearing a faded cotton dress, and her husband, dressed in an old handmade suit, stepped off a train in Boston, USA, and timidly made their way to the office of the president of Harvard University. They had come from Palo Alto, California, and had not scheduled an appointment. The secretary, at a glance, thought that those two, looking like country bumpkins, had no business at Harvard.
— We want to speak with the president — the man said in a low voice.
— He will be busy all day — the secretary replied curtly.
— We will wait.
The secretary ignored them for hours, hoping the couple would finally give up and leave. But they stayed there, and the secretary, somewhat frustrated, decided to bother the president, although she hated doing that.
— If you speak with them for just a few minutes, maybe they will decide to go away — she said.
The president sighed in irritation but agreed. Someone of his importance did not have time to meet people like that, but he hated faded dresses and tattered suits in his office. With a stern face, he went to the couple.
— We had a son who studied at Harvard for a year — the woman said. — He loved Harvard and was very happy here, but a year ago he died in an accident, and we would like to erect a monument in his honor somewhere on campus.— My lady — said the president rudely —, we cannot erect a statue for every person who studied at Harvard and died; if we did, this place would look like a cemetery.
— Oh, no — the lady quickly replied. — We do not want to erect a statue. We would like to donate a building to Harvard.
The president looked at the woman's faded dress and her husband's old suit and exclaimed:
— A building! Do you have even the faintest idea of how much a building costs? We have more than seven and a half million dollars' worth of buildings here at Harvard.
The lady was silent for a moment, then said to her husband:
— If that’s all it costs to found a university, why don’t we have our own?
The husband agreed.
The couple, Leland Stanford, stood up and left, leaving the president confused. Traveling back to Palo Alto, California, they established there Stanford University, the second-largest in the world, in honor of their son, a former Harvard student."
Text extracted from: "Mileumlivros - Stories that Teach Values."
Thank you for reading, my friend! If this message helped you in any way, consider leaving your glass “🥃” as a token of appreciation.
A toast to our family!
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@ 4857600b:30b502f4
2025-02-20 19:09:11Mitch McConnell, a senior Republican senator, announced he will not seek reelection.
At 83 years old and with health issues, this decision was expected. After seven terms, he leaves a significant legacy in U.S. politics, known for his strategic maneuvering.
McConnell stated, “My current term in the Senate will be my last.” His retirement marks the end of an influential political era.
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@ 9e69e420:d12360c2
2025-02-17 17:12:01President Trump has intensified immigration enforcement, likening it to a wartime effort. Despite pouring resources into the U.S. Immigration and Customs Enforcement (ICE), arrest numbers are declining and falling short of goals. ICE fell from about 800 daily arrests in late January to fewer than 600 in early February.
Critics argue the administration is merely showcasing efforts with ineffectiveness, while Trump seeks billions more in funding to support his deportation agenda. Increased involvement from various federal agencies is intended to assist ICE, but many lack specific immigration training.
Challenges persist, as fewer immigrants are available for quick deportation due to a decline in illegal crossings. Local sheriffs are also pressured by rising demands to accommodate immigrants, which may strain resources further.
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@ 32e18276:5c68e245
2023-12-06 15:29:43I’m going to be on an ordinals panels as one of the people who is counter arguing the claim that they are good for bitcoin. I decided to brush up on the technicals on how inscriptions work. I am starting to see luke’s perspective on how it is exploiting a loophole in bitcoin’s anti-data-spam mechanisms.
Storing data in Bitcoin, the “standard” way
The standard way you add “data” to bitcoin is by calling the OP_RETURN opcode. Bitcoin devs noticed that people were storing data (like the bitcoin whitepaper) in the utxo set via large multisig transactions. The problem with this is that this set is unprunable and could grow over time. OP_RETURN outputs on the other-hand are provably prunable and don’t add to utxo bloat.
Here’s an excerpt from the march 2014 0.9.0 release notes that talks about this:
On OP_RETURN: There was been some confusion and misunderstanding in the community, regarding the OP_RETURN feature in 0.9 and data in the blockchain. This change is not an endorsement of storing data in the blockchain. The OP_RETURN change creates a provably-prunable output, to avoid data storage schemes – some of which were already deployed – that were storing arbitrary data such as images as forever-unspendable TX outputs, bloating bitcoin’s UTXO database. Storing arbitrary data in the blockchain is still a bad idea; it is less costly and far more efficient to store non-currency data elsewhere.
Much of the work on bitcoin core has been focused on making sure the system continues to function in a decentralized way for its intended purpose in the presence of people trying to abuse it for things like storing data. Bitcoin core has always discouraged this, as it is not designed for storage of images and data, it is meant for moving digital coins around in cyberspace.
To help incentive-align people to not do stupid things, OP_RETURN transactions were not made non-standard, so that they are relayable by peers and miners, but with the caveat:
- They can only push 40 bytes (later increased to 80,83, I’m guessing to support larger root merkle hashes since that is the only sane usecase for op_return)
Bitcoin also added an option called -datacarriersize which limits the total number of bytes from these outputs that you will relay or mine.
Why inscriptions are technically an exploit
Inscriptions get around the datacarriersize limit by disguising data as bitcoin script program data via OP_PUSH inside OP_IF blocks. Ordinals do not use OP_RETURN and are not subjected to datacarriersize limits, so noderunners and miners currently have limited control over the total size of this data that they wish to relay and include in blocks. Luke’s fork of bitcoin-core has some options to fight this spam, so hopefully we will see this in core sometime soon as well.
Inscriptions are also taking advantage of features in segwit v1 (witness discount) and v2/taproot (no arbitrary script size limit). Each of these features have interesting and well-justified reasons why they were introduced.
The purpose of the witness discount was to make it cheaper to spend many outputs which helps the reduction of the utxo set size. Inscriptions took advantage of this discount to store monke jpegs disguised as bitcoin scripts. Remember, bitcoin is not for storing data, so anytime bitcoin-devs accidentally make it cheap and easy to relay data then this should be viewed as an exploit. Expect it to be fixed, or at least provide tools to noderunners for fighting this spam.
Where do we go from here
The interesting part of this story is that people seem to attach value to images stored on the bitcoin blockchain, and they are willing to pay the fee to get it in the block, so non-ideologic miners and people who don’t care about the health and decentralization of bitcoin are happy to pay or collect the fee and move on.
Data should not get a discount, people should pay full price if they want to store data. They should just use op_return and hashes like opentimestamps or any other reasonable protocol storing data in bitcoin.
After going through this analysis I’ve come to the opinion that this is a pretty bad data-spam exploit and bitcoin devs should be working on solutions. Ideological devs like luke who actually care about the health and decentralization of the network are and I’m glad to see it.
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@ fd208ee8:0fd927c1
2025-02-15 07:02:08E-cash are coupons or tokens for Bitcoin, or Bitcoin debt notes that the mint issues. The e-cash states, essentially, "IoU 2900 sats".
They're redeemable for Bitcoin on Lightning (hard money), and therefore can be used as cash (softer money), so long as the mint has a good reputation. That means that they're less fungible than Lightning because the e-cash from one mint can be more or less valuable than the e-cash from another. If a mint is buggy, offline, or disappears, then the e-cash is unreedemable.
It also means that e-cash is more anonymous than Lightning, and that the sender and receiver's wallets don't need to be online, to transact. Nutzaps now add the possibility of parking transactions one level farther out, on a relay. The same relays that cannot keep npub profiles and follow lists consistent will now do monetary transactions.
What we then have is * a transaction on a relay that triggers * a transaction on a mint that triggers * a transaction on Lightning that triggers * a transaction on Bitcoin.
Which means that every relay that stores the nuts is part of a wildcat banking system. Which is fine, but relay operators should consider whether they wish to carry the associated risks and liabilities. They should also be aware that they should implement the appropriate features in their relay, such as expiration tags (nuts rot after 2 weeks), and to make sure that only expired nuts are deleted.
There will be plenty of specialized relays for this, so don't feel pressured to join in, and research the topic carefully, for yourself.
https://github.com/nostr-protocol/nips/blob/master/60.md
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@ 0fa80bd3:ea7325de
2025-02-14 23:24:37intro
The Russian state made me a Bitcoiner. In 1991, it devalued my grandmother's hard-earned savings. She worked tirelessly in the kitchen of a dining car on the Moscow–Warsaw route. Everything she had saved for my sister and me to attend university vanished overnight. This story is similar to what many experienced, including Wences Casares. The pain and injustice of that time became my first lessons about the fragility of systems and the value of genuine, incorruptible assets, forever changing my perception of money and my trust in government promises.
In 2014, I was living in Moscow, running a trading business, and frequently traveling to China. One day, I learned about the Cypriot banking crisis and the possibility of moving money through some strange thing called Bitcoin. At the time, I didn’t give it much thought. Returning to the idea six months later, as a business-oriented geek, I eagerly began studying the topic and soon dove into it seriously.
I spent half a year reading articles on a local online journal, BitNovosti, actively participating in discussions, and eventually joined the editorial team as a translator. That’s how I learned about whitepapers, decentralization, mining, cryptographic keys, and colored coins. About Satoshi Nakamoto, Silk Road, Mt. Gox, and BitcoinTalk. Over time, I befriended the journal’s owner and, leveraging my management experience, later became an editor. I was drawn to the crypto-anarchist stance and commitment to decentralization principles. We wrote about the economic, historical, and social preconditions for Bitcoin’s emergence, and it was during this time that I fully embraced the idea.
It got to the point where I sold my apartment and, during the market's downturn, bought 50 bitcoins, just after the peak price of $1,200 per coin. That marked the beginning of my first crypto winter. As an editor, I organized workflows, managed translators, developed a YouTube channel, and attended conferences in Russia and Ukraine. That’s how I learned about Wences Casares and even wrote a piece about him. I also met Mikhail Chobanyan (Ukrainian exchange Kuna), Alexander Ivanov (Waves project), Konstantin Lomashuk (Lido project), and, of course, Vitalik Buterin. It was a time of complete immersion, 24/7, and boundless hope.
After moving to the United States, I expected the industry to grow rapidly, attended events, but the introduction of BitLicense froze the industry for eight years. By 2017, it became clear that the industry was shifting toward gambling and creating tokens for the sake of tokens. I dismissed this idea as unsustainable. Then came a new crypto spring with the hype around beautiful NFTs – CryptoPunks and apes.
I made another attempt – we worked on a series called Digital Nomad Country Club, aimed at creating a global project. The proceeds from selling images were intended to fund the development of business tools for people worldwide. However, internal disagreements within the team prevented us from completing the project.
With Trump’s arrival in 2025, hope was reignited. I decided that it was time to create a project that society desperately needed. As someone passionate about history, I understood that destroying what exists was not the solution, but leaving everything as it was also felt unacceptable. You can’t destroy the system, as the fiery crypto-anarchist voices claimed.
With an analytical mindset (IQ 130) and a deep understanding of the freest societies, I realized what was missing—not only in Russia or the United States but globally—a Bitcoin-native system for tracking debts and financial interactions. This could return control of money to ordinary people and create horizontal connections parallel to state systems. My goal was to create, if not a Bitcoin killer app, then at least to lay its foundation.
At the inauguration event in New York, I rediscovered the Nostr project. I realized it was not only technologically simple and already quite popular but also perfectly aligned with my vision. For the past month and a half, using insights and experience gained since 2014, I’ve been working full-time on this project.
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@ e3ba5e1a:5e433365
2025-02-13 06:16:49My favorite line in any Marvel movie ever is in “Captain America.” After Captain America launches seemingly a hopeless assault on Red Skull’s base and is captured, we get this line:
“Arrogance may not be a uniquely American trait, but I must say, you do it better than anyone.”
Yesterday, I came across a comment on the song Devil Went Down to Georgia that had a very similar feel to it:
America has seemingly always been arrogant, in a uniquely American way. Manifest Destiny, for instance. The rest of the world is aware of this arrogance, and mocks Americans for it. A central point in modern US politics is the deriding of racist, nationalist, supremacist Americans.
That’s not what I see. I see American Arrogance as not only a beautiful statement about what it means to be American. I see it as an ode to the greatness of humanity in its purest form.
For most countries, saying “our nation is the greatest” is, in fact, twinged with some level of racism. I still don’t have a problem with it. Every group of people should be allowed to feel pride in their accomplishments. The destruction of the human spirit since the end of World War 2, where greatness has become a sin and weakness a virtue, has crushed the ability of people worldwide to strive for excellence.
But I digress. The fears of racism and nationalism at least have a grain of truth when applied to other nations on the planet. But not to America.
That’s because the definition of America, and the prototype of an American, has nothing to do with race. The definition of Americanism is freedom. The founding of America is based purely on liberty. On the God-given rights of every person to live life the way they see fit.
American Arrogance is not a statement of racial superiority. It’s barely a statement of national superiority (though it absolutely is). To me, when an American comments on the greatness of America, it’s a statement about freedom. Freedom will always unlock the greatness inherent in any group of people. Americans are definitionally better than everyone else, because Americans are freer than everyone else. (Or, at least, that’s how it should be.)
In Devil Went Down to Georgia, Johnny is approached by the devil himself. He is challenged to a ridiculously lopsided bet: a golden fiddle versus his immortal soul. He acknowledges the sin in accepting such a proposal. And yet he says, “God, I know you told me not to do this. But I can’t stand the affront to my honor. I am the greatest. The devil has nothing on me. So God, I’m gonna sin, but I’m also gonna win.”
Libertas magnitudo est
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@ daa41bed:88f54153
2025-02-09 16:50:04There has been a good bit of discussion on Nostr over the past few days about the merits of zaps as a method of engaging with notes, so after writing a rather lengthy article on the pros of a strategic Bitcoin reserve, I wanted to take some time to chime in on the much more fun topic of digital engagement.
Let's begin by defining a couple of things:
Nostr is a decentralized, censorship-resistance protocol whose current biggest use case is social media (think Twitter/X). Instead of relying on company servers, it relies on relays that anyone can spin up and own their own content. Its use cases are much bigger, though, and this article is hosted on my own relay, using my own Nostr relay as an example.
Zap is a tip or donation denominated in sats (small units of Bitcoin) sent from one user to another. This is generally done directly over the Lightning Network but is increasingly using Cashu tokens. For the sake of this discussion, how you transmit/receive zaps will be irrelevant, so don't worry if you don't know what Lightning or Cashu are.
If we look at how users engage with posts and follows/followers on platforms like Twitter, Facebook, etc., it becomes evident that traditional social media thrives on engagement farming. The more outrageous a post, the more likely it will get a reaction. We see a version of this on more visual social platforms like YouTube and TikTok that use carefully crafted thumbnail images to grab the user's attention to click the video. If you'd like to dive deep into the psychology and science behind social media engagement, let me know, and I'd be happy to follow up with another article.
In this user engagement model, a user is given the option to comment or like the original post, or share it among their followers to increase its signal. They receive no value from engaging with the content aside from the dopamine hit of the original experience or having their comment liked back by whatever influencer they provide value to. Ad revenue flows to the content creator. Clout flows to the content creator. Sales revenue from merch and content placement flows to the content creator. We call this a linear economy -- the idea that resources get created, used up, then thrown away. Users create content and farm as much engagement as possible, then the content is forgotten within a few hours as they move on to the next piece of content to be farmed.
What if there were a simple way to give value back to those who engage with your content? By implementing some value-for-value model -- a circular economy. Enter zaps.
Unlike traditional social media platforms, Nostr does not actively use algorithms to determine what content is popular, nor does it push content created for active user engagement to the top of a user's timeline. Yes, there are "trending" and "most zapped" timelines that users can choose to use as their default, but these use relatively straightforward engagement metrics to rank posts for these timelines.
That is not to say that we may not see clients actively seeking to refine timeline algorithms for specific metrics. Still, the beauty of having an open protocol with media that is controlled solely by its users is that users who begin to see their timeline gamed towards specific algorithms can choose to move to another client, and for those who are more tech-savvy, they can opt to run their own relays or create their own clients with personalized algorithms and web of trust scoring systems.
Zaps enable the means to create a new type of social media economy in which creators can earn for creating content and users can earn by actively engaging with it. Like and reposting content is relatively frictionless and costs nothing but a simple button tap. Zaps provide active engagement because they signal to your followers and those of the content creator that this post has genuine value, quite literally in the form of money—sats.
I have seen some comments on Nostr claiming that removing likes and reactions is for wealthy people who can afford to send zaps and that the majority of people in the US and around the world do not have the time or money to zap because they have better things to spend their money like feeding their families and paying their bills. While at face value, these may seem like valid arguments, they, unfortunately, represent the brainwashed, defeatist attitude that our current economic (and, by extension, social media) systems aim to instill in all of us to continue extracting value from our lives.
Imagine now, if those people dedicating their own time (time = money) to mine pity points on social media would instead spend that time with genuine value creation by posting content that is meaningful to cultural discussions. Imagine if, instead of complaining that their posts get no zaps and going on a tirade about how much of a victim they are, they would empower themselves to take control of their content and give value back to the world; where would that leave us? How much value could be created on a nascent platform such as Nostr, and how quickly could it overtake other platforms?
Other users argue about user experience and that additional friction (i.e., zaps) leads to lower engagement, as proven by decades of studies on user interaction. While the added friction may turn some users away, does that necessarily provide less value? I argue quite the opposite. You haven't made a few sats from zaps with your content? Can't afford to send some sats to a wallet for zapping? How about using the most excellent available resource and spending 10 seconds of your time to leave a comment? Likes and reactions are valueless transactions. Social media's real value derives from providing monetary compensation and actively engaging in a conversation with posts you find interesting or thought-provoking. Remember when humans thrived on conversation and discussion for entertainment instead of simply being an onlooker of someone else's life?
If you've made it this far, my only request is this: try only zapping and commenting as a method of engagement for two weeks. Sure, you may end up liking a post here and there, but be more mindful of how you interact with the world and break yourself from blind instinct. You'll thank me later.
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@ e3ba5e1a:5e433365
2025-02-05 17:47:16I got into a friendly discussion on X regarding health insurance. The specific question was how to deal with health insurance companies (presumably unfairly) denying claims? My answer, as usual: get government out of it!
The US healthcare system is essentially the worst of both worlds:
- Unlike full single payer, individuals incur high costs
- Unlike a true free market, regulation causes increases in costs and decreases competition among insurers
I'm firmly on the side of moving towards the free market. (And I say that as someone living under a single payer system now.) Here's what I would do:
- Get rid of tax incentives that make health insurance tied to your employer, giving individuals back proper freedom of choice.
- Reduce regulations significantly.
-
In the short term, some people will still get rejected claims and other obnoxious behavior from insurance companies. We address that in two ways:
- Due to reduced regulations, new insurance companies will be able to enter the market offering more reliable coverage and better rates, and people will flock to them because they have the freedom to make their own choices.
- Sue the asses off of companies that reject claims unfairly. And ideally, as one of the few legitimate roles of government in all this, institute new laws that limit the ability of fine print to allow insurers to escape their responsibilities. (I'm hesitant that the latter will happen due to the incestuous relationship between Congress/regulators and insurers, but I can hope.)
Will this magically fix everything overnight like politicians normally promise? No. But it will allow the market to return to a healthy state. And I don't think it will take long (order of magnitude: 5-10 years) for it to come together, but that's just speculation.
And since there's a high correlation between those who believe government can fix problems by taking more control and demanding that only credentialed experts weigh in on a topic (both points I strongly disagree with BTW): I'm a trained actuary and worked in the insurance industry, and have directly seen how government regulation reduces competition, raises prices, and harms consumers.
And my final point: I don't think any prior art would be a good comparison for deregulation in the US, it's such a different market than any other country in the world for so many reasons that lessons wouldn't really translate. Nonetheless, I asked Grok for some empirical data on this, and at best the results of deregulation could be called "mixed," but likely more accurately "uncertain, confused, and subject to whatever interpretation anyone wants to apply."
https://x.com/i/grok/share/Zc8yOdrN8lS275hXJ92uwq98M
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@ 91bea5cd:1df4451c
2025-02-04 17:24:50Definição de ULID:
Timestamp 48 bits, Aleatoriedade 80 bits Sendo Timestamp 48 bits inteiro, tempo UNIX em milissegundos, Não ficará sem espaço até o ano 10889 d.C. e Aleatoriedade 80 bits, Fonte criptograficamente segura de aleatoriedade, se possível.
Gerar ULID
```sql
CREATE EXTENSION IF NOT EXISTS pgcrypto;
CREATE FUNCTION generate_ulid() RETURNS TEXT AS $$ DECLARE -- Crockford's Base32 encoding BYTEA = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; timestamp BYTEA = E'\000\000\000\000\000\000'; output TEXT = '';
unix_time BIGINT; ulid BYTEA; BEGIN -- 6 timestamp bytes unix_time = (EXTRACT(EPOCH FROM CLOCK_TIMESTAMP()) * 1000)::BIGINT; timestamp = SET_BYTE(timestamp, 0, (unix_time >> 40)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 1, (unix_time >> 32)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 2, (unix_time >> 24)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 3, (unix_time >> 16)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 4, (unix_time >> 8)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 5, unix_time::BIT(8)::INTEGER);
-- 10 entropy bytes ulid = timestamp || gen_random_bytes(10);
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 1) & 7) << 2) | ((GET_BYTE(ulid, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 2) & 1) << 4) | ((GET_BYTE(ulid, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 3) & 15) << 1) | ((GET_BYTE(ulid, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 4) & 3) << 3) | ((GET_BYTE(ulid, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 6) & 7) << 2) | ((GET_BYTE(ulid, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 7) & 1) << 4) | ((GET_BYTE(ulid, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 8) & 15) << 1) | ((GET_BYTE(ulid, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 9) & 3) << 3) | ((GET_BYTE(ulid, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 11) & 7) << 2) | ((GET_BYTE(ulid, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 12) & 1) << 4) | ((GET_BYTE(ulid, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 13) & 15) << 1) | ((GET_BYTE(ulid, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 14) & 3) << 3) | ((GET_BYTE(ulid, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql VOLATILE; ```
ULID TO UUID
```sql CREATE OR REPLACE FUNCTION parse_ulid(ulid text) RETURNS bytea AS $$ DECLARE -- 16byte bytes bytea = E'\x00000000 00000000 00000000 00000000'; v char[]; -- Allow for O(1) lookup of index values dec integer[] = ARRAY[ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31 ]; BEGIN IF NOT ulid ~* '^[0-7][0-9ABCDEFGHJKMNPQRSTVWXYZ]{25}$' THEN RAISE EXCEPTION 'Invalid ULID: %', ulid; END IF;
v = regexp_split_to_array(ulid, '');
-- 6 bytes timestamp (48 bits) bytes = SET_BYTE(bytes, 0, (dec[ASCII(v[1])] << 5) | dec[ASCII(v[2])]); bytes = SET_BYTE(bytes, 1, (dec[ASCII(v[3])] << 3) | (dec[ASCII(v[4])] >> 2)); bytes = SET_BYTE(bytes, 2, (dec[ASCII(v[4])] << 6) | (dec[ASCII(v[5])] << 1) | (dec[ASCII(v[6])] >> 4)); bytes = SET_BYTE(bytes, 3, (dec[ASCII(v[6])] << 4) | (dec[ASCII(v[7])] >> 1)); bytes = SET_BYTE(bytes, 4, (dec[ASCII(v[7])] << 7) | (dec[ASCII(v[8])] << 2) | (dec[ASCII(v[9])] >> 3)); bytes = SET_BYTE(bytes, 5, (dec[ASCII(v[9])] << 5) | dec[ASCII(v[10])]);
-- 10 bytes of entropy (80 bits); bytes = SET_BYTE(bytes, 6, (dec[ASCII(v[11])] << 3) | (dec[ASCII(v[12])] >> 2)); bytes = SET_BYTE(bytes, 7, (dec[ASCII(v[12])] << 6) | (dec[ASCII(v[13])] << 1) | (dec[ASCII(v[14])] >> 4)); bytes = SET_BYTE(bytes, 8, (dec[ASCII(v[14])] << 4) | (dec[ASCII(v[15])] >> 1)); bytes = SET_BYTE(bytes, 9, (dec[ASCII(v[15])] << 7) | (dec[ASCII(v[16])] << 2) | (dec[ASCII(v[17])] >> 3)); bytes = SET_BYTE(bytes, 10, (dec[ASCII(v[17])] << 5) | dec[ASCII(v[18])]); bytes = SET_BYTE(bytes, 11, (dec[ASCII(v[19])] << 3) | (dec[ASCII(v[20])] >> 2)); bytes = SET_BYTE(bytes, 12, (dec[ASCII(v[20])] << 6) | (dec[ASCII(v[21])] << 1) | (dec[ASCII(v[22])] >> 4)); bytes = SET_BYTE(bytes, 13, (dec[ASCII(v[22])] << 4) | (dec[ASCII(v[23])] >> 1)); bytes = SET_BYTE(bytes, 14, (dec[ASCII(v[23])] << 7) | (dec[ASCII(v[24])] << 2) | (dec[ASCII(v[25])] >> 3)); bytes = SET_BYTE(bytes, 15, (dec[ASCII(v[25])] << 5) | dec[ASCII(v[26])]);
RETURN bytes; END $$ LANGUAGE plpgsql IMMUTABLE;
CREATE OR REPLACE FUNCTION ulid_to_uuid(ulid text) RETURNS uuid AS $$ BEGIN RETURN encode(parse_ulid(ulid), 'hex')::uuid; END $$ LANGUAGE plpgsql IMMUTABLE; ```
UUID to ULID
```sql CREATE OR REPLACE FUNCTION uuid_to_ulid(id uuid) RETURNS text AS $$ DECLARE encoding bytea = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; output text = ''; uuid_bytes bytea = uuid_send(id); BEGIN
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 1) & 7) << 2) | ((GET_BYTE(uuid_bytes, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 2) & 1) << 4) | ((GET_BYTE(uuid_bytes, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 3) & 15) << 1) | ((GET_BYTE(uuid_bytes, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 4) & 3) << 3) | ((GET_BYTE(uuid_bytes, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 6) & 7) << 2) | ((GET_BYTE(uuid_bytes, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 7) & 1) << 4) | ((GET_BYTE(uuid_bytes, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 8) & 15) << 1) | ((GET_BYTE(uuid_bytes, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 9) & 3) << 3) | ((GET_BYTE(uuid_bytes, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 11) & 7) << 2) | ((GET_BYTE(uuid_bytes, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 12) & 1) << 4) | ((GET_BYTE(uuid_bytes, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 13) & 15) << 1) | ((GET_BYTE(uuid_bytes, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 14) & 3) << 3) | ((GET_BYTE(uuid_bytes, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql IMMUTABLE; ```
Gera 11 Digitos aleatórios: YBKXG0CKTH4
```sql -- Cria a extensão pgcrypto para gerar uuid CREATE EXTENSION IF NOT EXISTS pgcrypto;
-- Cria a função para gerar ULID CREATE OR REPLACE FUNCTION gen_lrandom() RETURNS TEXT AS $$ DECLARE ts_millis BIGINT; ts_chars TEXT; random_bytes BYTEA; random_chars TEXT; base32_chars TEXT := '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; i INT; BEGIN -- Pega o timestamp em milissegundos ts_millis := FLOOR(EXTRACT(EPOCH FROM clock_timestamp()) * 1000)::BIGINT;
-- Converte o timestamp para base32 ts_chars := ''; FOR i IN REVERSE 0..11 LOOP ts_chars := ts_chars || substr(base32_chars, ((ts_millis >> (5 * i)) & 31) + 1, 1); END LOOP; -- Gera 10 bytes aleatórios e converte para base32 random_bytes := gen_random_bytes(10); random_chars := ''; FOR i IN 0..9 LOOP random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) >> 3) & 31) + 1, 1); IF i < 9 THEN random_chars := random_chars || substr(base32_chars, (((get_byte(random_bytes, i) & 7) << 2) | (get_byte(random_bytes, i + 1) >> 6)) & 31 + 1, 1); ELSE random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) & 7) << 2) + 1, 1); END IF; END LOOP; -- Concatena o timestamp e os caracteres aleatórios RETURN ts_chars || random_chars;
END; $$ LANGUAGE plpgsql; ```
Exemplo de USO
```sql -- Criação da extensão caso não exista CREATE EXTENSION IF NOT EXISTS pgcrypto; -- Criação da tabela pessoas CREATE TABLE pessoas ( ID UUID DEFAULT gen_random_uuid ( ) PRIMARY KEY, nome TEXT NOT NULL );
-- Busca Pessoa na tabela SELECT * FROM "pessoas" WHERE uuid_to_ulid ( ID ) = '252FAC9F3V8EF80SSDK8PXW02F'; ```
Fontes
- https://github.com/scoville/pgsql-ulid
- https://github.com/geckoboard/pgulid
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@ 91bea5cd:1df4451c
2025-02-04 17:15:57Definição de ULID:
Timestamp 48 bits, Aleatoriedade 80 bits Sendo Timestamp 48 bits inteiro, tempo UNIX em milissegundos, Não ficará sem espaço até o ano 10889 d.C. e Aleatoriedade 80 bits, Fonte criptograficamente segura de aleatoriedade, se possível.
Gerar ULID
```sql
CREATE EXTENSION IF NOT EXISTS pgcrypto;
CREATE FUNCTION generate_ulid() RETURNS TEXT AS $$ DECLARE -- Crockford's Base32 encoding BYTEA = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; timestamp BYTEA = E'\000\000\000\000\000\000'; output TEXT = '';
unix_time BIGINT; ulid BYTEA; BEGIN -- 6 timestamp bytes unix_time = (EXTRACT(EPOCH FROM CLOCK_TIMESTAMP()) * 1000)::BIGINT; timestamp = SET_BYTE(timestamp, 0, (unix_time >> 40)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 1, (unix_time >> 32)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 2, (unix_time >> 24)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 3, (unix_time >> 16)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 4, (unix_time >> 8)::BIT(8)::INTEGER); timestamp = SET_BYTE(timestamp, 5, unix_time::BIT(8)::INTEGER);
-- 10 entropy bytes ulid = timestamp || gen_random_bytes(10);
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 1) & 7) << 2) | ((GET_BYTE(ulid, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 2) & 1) << 4) | ((GET_BYTE(ulid, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 3) & 15) << 1) | ((GET_BYTE(ulid, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 4) & 3) << 3) | ((GET_BYTE(ulid, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 6) & 7) << 2) | ((GET_BYTE(ulid, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 7) & 1) << 4) | ((GET_BYTE(ulid, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 8) & 15) << 1) | ((GET_BYTE(ulid, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 9) & 3) << 3) | ((GET_BYTE(ulid, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 11) & 7) << 2) | ((GET_BYTE(ulid, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 12) & 1) << 4) | ((GET_BYTE(ulid, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 13) & 15) << 1) | ((GET_BYTE(ulid, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(ulid, 14) & 3) << 3) | ((GET_BYTE(ulid, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(ulid, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql VOLATILE; ```
ULID TO UUID
```sql CREATE OR REPLACE FUNCTION parse_ulid(ulid text) RETURNS bytea AS $$ DECLARE -- 16byte bytes bytea = E'\x00000000 00000000 00000000 00000000'; v char[]; -- Allow for O(1) lookup of index values dec integer[] = ARRAY[ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31, 255, 255, 255, 255, 255, 255, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, 255, 27, 28, 29, 30, 31 ]; BEGIN IF NOT ulid ~* '^[0-7][0-9ABCDEFGHJKMNPQRSTVWXYZ]{25}$' THEN RAISE EXCEPTION 'Invalid ULID: %', ulid; END IF;
v = regexp_split_to_array(ulid, '');
-- 6 bytes timestamp (48 bits) bytes = SET_BYTE(bytes, 0, (dec[ASCII(v[1])] << 5) | dec[ASCII(v[2])]); bytes = SET_BYTE(bytes, 1, (dec[ASCII(v[3])] << 3) | (dec[ASCII(v[4])] >> 2)); bytes = SET_BYTE(bytes, 2, (dec[ASCII(v[4])] << 6) | (dec[ASCII(v[5])] << 1) | (dec[ASCII(v[6])] >> 4)); bytes = SET_BYTE(bytes, 3, (dec[ASCII(v[6])] << 4) | (dec[ASCII(v[7])] >> 1)); bytes = SET_BYTE(bytes, 4, (dec[ASCII(v[7])] << 7) | (dec[ASCII(v[8])] << 2) | (dec[ASCII(v[9])] >> 3)); bytes = SET_BYTE(bytes, 5, (dec[ASCII(v[9])] << 5) | dec[ASCII(v[10])]);
-- 10 bytes of entropy (80 bits); bytes = SET_BYTE(bytes, 6, (dec[ASCII(v[11])] << 3) | (dec[ASCII(v[12])] >> 2)); bytes = SET_BYTE(bytes, 7, (dec[ASCII(v[12])] << 6) | (dec[ASCII(v[13])] << 1) | (dec[ASCII(v[14])] >> 4)); bytes = SET_BYTE(bytes, 8, (dec[ASCII(v[14])] << 4) | (dec[ASCII(v[15])] >> 1)); bytes = SET_BYTE(bytes, 9, (dec[ASCII(v[15])] << 7) | (dec[ASCII(v[16])] << 2) | (dec[ASCII(v[17])] >> 3)); bytes = SET_BYTE(bytes, 10, (dec[ASCII(v[17])] << 5) | dec[ASCII(v[18])]); bytes = SET_BYTE(bytes, 11, (dec[ASCII(v[19])] << 3) | (dec[ASCII(v[20])] >> 2)); bytes = SET_BYTE(bytes, 12, (dec[ASCII(v[20])] << 6) | (dec[ASCII(v[21])] << 1) | (dec[ASCII(v[22])] >> 4)); bytes = SET_BYTE(bytes, 13, (dec[ASCII(v[22])] << 4) | (dec[ASCII(v[23])] >> 1)); bytes = SET_BYTE(bytes, 14, (dec[ASCII(v[23])] << 7) | (dec[ASCII(v[24])] << 2) | (dec[ASCII(v[25])] >> 3)); bytes = SET_BYTE(bytes, 15, (dec[ASCII(v[25])] << 5) | dec[ASCII(v[26])]);
RETURN bytes; END $$ LANGUAGE plpgsql IMMUTABLE;
CREATE OR REPLACE FUNCTION ulid_to_uuid(ulid text) RETURNS uuid AS $$ BEGIN RETURN encode(parse_ulid(ulid), 'hex')::uuid; END $$ LANGUAGE plpgsql IMMUTABLE; ```
UUID to ULID
```sql CREATE OR REPLACE FUNCTION uuid_to_ulid(id uuid) RETURNS text AS $$ DECLARE encoding bytea = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; output text = ''; uuid_bytes bytea = uuid_send(id); BEGIN
-- Encode the timestamp output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 224) >> 5)); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 0) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 1) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 1) & 7) << 2) | ((GET_BYTE(uuid_bytes, 2) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 2) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 2) & 1) << 4) | ((GET_BYTE(uuid_bytes, 3) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 3) & 15) << 1) | ((GET_BYTE(uuid_bytes, 4) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 4) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 4) & 3) << 3) | ((GET_BYTE(uuid_bytes, 5) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 5) & 31)));
-- Encode the entropy output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 6) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 6) & 7) << 2) | ((GET_BYTE(uuid_bytes, 7) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 7) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 7) & 1) << 4) | ((GET_BYTE(uuid_bytes, 8) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 8) & 15) << 1) | ((GET_BYTE(uuid_bytes, 9) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 9) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 9) & 3) << 3) | ((GET_BYTE(uuid_bytes, 10) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 10) & 31))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 11) & 248) >> 3)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 11) & 7) << 2) | ((GET_BYTE(uuid_bytes, 12) & 192) >> 6))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 12) & 62) >> 1)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 12) & 1) << 4) | ((GET_BYTE(uuid_bytes, 13) & 240) >> 4))); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 13) & 15) << 1) | ((GET_BYTE(uuid_bytes, 14) & 128) >> 7))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 14) & 124) >> 2)); output = output || CHR(GET_BYTE(encoding, ((GET_BYTE(uuid_bytes, 14) & 3) << 3) | ((GET_BYTE(uuid_bytes, 15) & 224) >> 5))); output = output || CHR(GET_BYTE(encoding, (GET_BYTE(uuid_bytes, 15) & 31)));
RETURN output; END $$ LANGUAGE plpgsql IMMUTABLE; ```
Gera 11 Digitos aleatórios: YBKXG0CKTH4
```sql -- Cria a extensão pgcrypto para gerar uuid CREATE EXTENSION IF NOT EXISTS pgcrypto;
-- Cria a função para gerar ULID CREATE OR REPLACE FUNCTION gen_lrandom() RETURNS TEXT AS $$ DECLARE ts_millis BIGINT; ts_chars TEXT; random_bytes BYTEA; random_chars TEXT; base32_chars TEXT := '0123456789ABCDEFGHJKMNPQRSTVWXYZ'; i INT; BEGIN -- Pega o timestamp em milissegundos ts_millis := FLOOR(EXTRACT(EPOCH FROM clock_timestamp()) * 1000)::BIGINT;
-- Converte o timestamp para base32 ts_chars := ''; FOR i IN REVERSE 0..11 LOOP ts_chars := ts_chars || substr(base32_chars, ((ts_millis >> (5 * i)) & 31) + 1, 1); END LOOP; -- Gera 10 bytes aleatórios e converte para base32 random_bytes := gen_random_bytes(10); random_chars := ''; FOR i IN 0..9 LOOP random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) >> 3) & 31) + 1, 1); IF i < 9 THEN random_chars := random_chars || substr(base32_chars, (((get_byte(random_bytes, i) & 7) << 2) | (get_byte(random_bytes, i + 1) >> 6)) & 31 + 1, 1); ELSE random_chars := random_chars || substr(base32_chars, ((get_byte(random_bytes, i) & 7) << 2) + 1, 1); END IF; END LOOP; -- Concatena o timestamp e os caracteres aleatórios RETURN ts_chars || random_chars;
END; $$ LANGUAGE plpgsql; ```
Exemplo de USO
```sql -- Criação da extensão caso não exista CREATE EXTENSION IF NOT EXISTS pgcrypto; -- Criação da tabela pessoas CREATE TABLE pessoas ( ID UUID DEFAULT gen_random_uuid ( ) PRIMARY KEY, nome TEXT NOT NULL );
-- Busca Pessoa na tabela SELECT * FROM "pessoas" WHERE uuid_to_ulid ( ID ) = '252FAC9F3V8EF80SSDK8PXW02F'; ```
Fontes
- https://github.com/scoville/pgsql-ulid
- https://github.com/geckoboard/pgulid
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@ e3ba5e1a:5e433365
2025-02-04 08:29:00President Trump has started rolling out his tariffs, something I blogged about in November. People are talking about these tariffs a lot right now, with many people (correctly) commenting on how consumers will end up with higher prices as a result of these tariffs. While that part is true, I’ve seen a lot of people taking it to the next, incorrect step: that consumers will pay the entirety of the tax. I put up a poll on X to see what people thought, and while the right answer got a lot of votes, it wasn't the winner.
For purposes of this blog post, our ultimate question will be the following:
- Suppose apples currently sell for $1 each in the entire United States.
- There are domestic sellers and foreign sellers of apples, all receiving the same price.
- There are no taxes or tariffs on the purchase of apples.
- The question is: if the US federal government puts a $0.50 import tariff per apple, what will be the change in the following:
- Number of apples bought in the US
- Price paid by buyers for apples in the US
- Post-tax price received by domestic apple producers
- Post-tax price received by foreign apple producers
Before we can answer that question, we need to ask an easier, first question: before instituting the tariff, why do apples cost $1?
And finally, before we dive into the details, let me provide you with the answers to the ultimate question. I recommend you try to guess these answers before reading this, and if you get it wrong, try to understand why:
- The number of apples bought will go down
- The buyers will pay more for each apple they buy, but not the full amount of the tariff
- Domestic apple sellers will receive a higher price per apple
- Foreign apple sellers will receive a lower price per apple, but not lowered by the full amount of the tariff
In other words, regardless of who sends the payment to the government, both taxed parties (domestic buyers and foreign sellers) will absorb some of the costs of the tariff, while domestic sellers will benefit from the protectionism provided by tariffs and be able to sell at a higher price per unit.
Marginal benefit
All of the numbers discussed below are part of a helper Google Sheet I put together for this analysis. Also, apologies about the jagged lines in the charts below, I hadn’t realized before starting on this that there are some difficulties with creating supply and demand charts in Google Sheets.
Let’s say I absolutely love apples, they’re my favorite food. How much would I be willing to pay for a single apple? You might say “$1, that’s the price in the supermarket,” and in many ways you’d be right. If I walk into supermarket A, see apples on sale for $50, and know that I can buy them at supermarket B for $1, I’ll almost certainly leave A and go buy at B.
But that’s not what I mean. What I mean is: how high would the price of apples have to go everywhere so that I’d no longer be willing to buy a single apple? This is a purely personal, subjective opinion. It’s impacted by how much money I have available, other expenses I need to cover, and how much I like apples. But let’s say the number is $5.
How much would I be willing to pay for another apple? Maybe another $5. But how much am I willing to pay for the 1,000th apple? 10,000th? At some point, I’ll get sick of apples, or run out of space to keep the apples, or not be able to eat, cook, and otherwise preserve all those apples before they rot.
The point being: I’ll be progressively willing to spend less and less money for each apple. This form of analysis is called marginal benefit: how much benefit (expressed as dollars I’m willing to spend) will I receive from each apple? This is a downward sloping function: for each additional apple I buy (quantity demanded), the price I’m willing to pay goes down. This is what gives my personal demand curve. And if we aggregate demand curves across all market participants (meaning: everyone interested in buying apples), we end up with something like this:
Assuming no changes in people’s behavior and other conditions in the market, this chart tells us how many apples will be purchased by our buyers at each price point between $0.50 and $5. And ceteris paribus (all else being equal), this will continue to be the demand curve for apples.
Marginal cost
Demand is half the story of economics. The other half is supply, or: how many apples will I sell at each price point? Supply curves are upward sloping: the higher the price, the more a person or company is willing and able to sell a product.
Let’s understand why. Suppose I have an apple orchard. It’s a large property right next to my house. With about 2 minutes of effort, I can walk out of my house, find the nearest tree, pick 5 apples off the tree, and call it a day. 5 apples for 2 minutes of effort is pretty good, right?
Yes, there was all the effort necessary to buy the land, and plant the trees, and water them… and a bunch more than I likely can’t even guess at. We’re going to ignore all of that for our analysis, because for short-term supply-and-demand movement, we can ignore these kinds of sunk costs. One other simplification: in reality, supply curves often start descending before ascending. This accounts for achieving efficiencies of scale after the first number of units purchased. But since both these topics are unneeded for understanding taxes, I won’t go any further.
Anyway, back to my apple orchard. If someone offers me $0.50 per apple, I can do 2 minutes of effort and get $2.50 in revenue, which equates to a $75/hour wage for me. I’m more than happy to pick apples at that price!
However, let’s say someone comes to buy 10,000 apples from me instead. I no longer just walk out to my nearest tree. I’m going to need to get in my truck, drive around, spend the day in the sun, pay for gas, take a day off of my day job (let’s say it pays me $70/hour). The costs go up significantly. Let’s say it takes 5 days to harvest all those apples myself, it costs me $100 in fuel and other expenses, and I lose out on my $70/hour job for 5 days. We end up with:
- Total expenditure: $100 + $70 * 8 hours a day * 5 days \== $2900
- Total revenue: $5000 (10,000 apples at $0.50 each)
- Total profit: $2100
So I’m still willing to sell the apples at this price, but it’s not as attractive as before. And as the number of apples purchased goes up, my costs keep increasing. I’ll need to spend more money on fuel to travel more of my property. At some point I won’t be able to do the work myself anymore, so I’ll need to pay others to work on the farm, and they’ll be slower at picking apples than me (less familiar with the property, less direct motivation, etc.). The point being: at some point, the number of apples can go high enough that the $0.50 price point no longer makes me any money.
This kind of analysis is called marginal cost. It refers to the additional amount of expenditure a seller has to spend in order to produce each additional unit of the good. Marginal costs go up as quantity sold goes up. And like demand curves, if you aggregate this data across all sellers, you get a supply curve like this:
Equilibrium price
We now know, for every price point, how many apples buyers will purchase, and how many apples sellers will sell. Now we find the equilibrium: where the supply and demand curves meet. This point represents where the marginal benefit a buyer would receive from the next buyer would be less than the cost it would take the next seller to make it. Let’s see it in a chart:
You’ll notice that these two graphs cross at the $1 price point, where 63 apples are both demanded (bought by consumers) and supplied (sold by producers). This is our equilibrium price. We also have a visualization of the surplus created by these trades. Everything to the left of the equilibrium point and between the supply and demand curves represents surplus: an area where someone is receiving something of more value than they give. For example:
- When I bought my first apple for $1, but I was willing to spend $5, I made $4 of consumer surplus. The consumer portion of the surplus is everything to the left of the equilibrium point, between the supply and demand curves, and above the equilibrium price point.
- When a seller sells his first apple for $1, but it only cost $0.50 to produce it, the seller made $0.50 of producer surplus. The producer portion of the surplus is everything to the left of the equilibrium point, between the supply and demand curves, and below the equilibrium price point.
Another way of thinking of surplus is “every time someone got a better price than they would have been willing to take.”
OK, with this in place, we now have enough information to figure out how to price in the tariff, which we’ll treat as a negative externality.
Modeling taxes
Alright, the government has now instituted a $0.50 tariff on every apple sold within the US by a foreign producer. We can generally model taxes by either increasing the marginal cost of each unit sold (shifting the supply curve up), or by decreasing the marginal benefit of each unit bought (shifting the demand curve down). In this case, since only some of the producers will pay the tax, it makes more sense to modify the supply curve.
First, let’s see what happens to the foreign seller-only supply curve when you add in the tariff:
With the tariff in place, for each quantity level, the price at which the seller will sell is $0.50 higher than before the tariff. That makes sense: if I was previously willing to sell my 82nd apple for $3, I would now need to charge $3.50 for that apple to cover the cost of the tariff. We see this as the tariff “pushing up” or “pushing left” the original supply curve.
We can add this new supply curve to our existing (unchanged) supply curve for domestic-only sellers, and we end up with a result like this:
The total supply curve adds up the individual foreign and domestic supply curves. At each price point, we add up the total quantity each group would be willing to sell to determine the total quantity supplied for each price point. Once we have that cumulative supply curve defined, we can produce an updated supply-and-demand chart including the tariff:
As we can see, the equilibrium has shifted:
- The equilibrium price paid by consumers has risen from $1 to $1.20.
- The total number of apples purchased has dropped from 63 apples to 60 apples.
- Consumers therefore received 3 less apples. They spent $72 for these 60 apples, whereas previously they spent $63 for 3 more apples, a definite decrease in consumer surplus.
- Foreign producers sold 36 of those apples (see the raw data in the linked Google Sheet), for a gross revenue of $43.20. However, they also need to pay the tariff to the US government, which accounts for $18, meaning they only receive $25.20 post-tariff. Previously, they sold 42 apples at $1 each with no tariff to be paid, meaning they took home $42.
- Domestic producers sold the remaining 24 apples at $1.20, giving them a revenue of $28.80. Since they don’t pay the tariff, they take home all of that money. By contrast, previously, they sold 21 apples at $1, for a take-home of $21.
- The government receives $0.50 for each of the 60 apples sold, or in other words receives $30 in revenue it wouldn’t have received otherwise.
We could be more specific about the surpluses, and calculate the actual areas for consumer surplus, producer surplus, inefficiency from the tariff, and government revenue from the tariff. But I won’t bother, as those calculations get slightly more involved. Instead, let’s just look at the aggregate outcomes:
- Consumers were unquestionably hurt. Their price paid went up by $0.20 per apple, and received less apples.
- Foreign producers were also hurt. Their price received went down from the original $1 to the new post-tariff price of $1.20, minus the $0.50 tariff. In other words: foreign producers only receive $0.70 per apple now. This hurt can be mitigated by shifting sales to other countries without a tariff, but the pain will exist regardless.
- Domestic producers scored. They can sell less apples and make more revenue doing it.
- And the government walked away with an extra $30.
Hopefully you now see the answer to the original questions. Importantly, while the government imposed a $0.50 tariff, neither side fully absorbed that cost. Consumers paid a bit more, foreign producers received a bit less. The exact details of how that tariff was split across the groups is mediated by the relevant supply and demand curves of each group. If you want to learn more about this, the relevant search term is “price elasticity,” or how much a group’s quantity supplied or demanded will change based on changes in the price.
Other taxes
Most taxes are some kind of a tax on trade. Tariffs on apples is an obvious one. But the same applies to income tax (taxing the worker for the trade of labor for money) or payroll tax (same thing, just taxing the employer instead). Interestingly, you can use the same model for analyzing things like tax incentives. For example, if the government decided to subsidize domestic apple production by giving the domestic producers a $0.50 bonus for each apple they sell, we would end up with a similar kind of analysis, except instead of the foreign supply curve shifting up, we’d see the domestic supply curve shifting down.
And generally speaking, this is what you’ll always see with government involvement in the economy. It will result in disrupting an existing equilibrium, letting the market readjust to a new equilibrium, and incentivization of some behavior, causing some people to benefit and others to lose out. We saw with the apple tariff, domestic producers and the government benefited while others lost.
You can see the reverse though with tax incentives. If I give a tax incentive of providing a deduction (not paying income tax) for preschool, we would end up with:
- Government needs to make up the difference in tax revenue, either by raising taxes on others or printing more money (leading to inflation). Either way, those paying the tax or those holding government debased currency will pay a price.
- Those people who don’t use the preschool deduction will receive no benefit, so they simply pay a cost.
- Those who do use the preschool deduction will end up paying less on tax+preschool than they would have otherwise.
This analysis is fully amoral. It’s not saying whether providing subsidized preschool is a good thing or not, it simply tells you where the costs will be felt, and points out that such government interference in free economic choice does result in inefficiencies in the system. Once you have that knowledge, you’re more well educated on making a decision about whether the costs of government intervention are worth the benefits.
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@ 9e69e420:d12360c2
2025-02-01 11:16:04Federal employees must remove pronouns from email signatures by the end of the day. This directive comes from internal memos tied to two executive orders signed by Donald Trump. The orders target diversity and equity programs within the government.
CDC, Department of Transportation, and Department of Energy employees were affected. Staff were instructed to make changes in line with revised policy prohibiting certain language.
One CDC employee shared frustration, stating, “In my decade-plus years at CDC, I've never been told what I can and can't put in my email signature.” The directive is part of a broader effort to eliminate DEI initiatives from federal discourse.
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@ 97c70a44:ad98e322
2025-01-30 17:15:37There was a slight dust up recently over a website someone runs removing a listing for an app someone built based on entirely arbitrary criteria. I'm not to going to attempt to speak for either wounded party, but I would like to share my own personal definition for what constitutes a "nostr app" in an effort to help clarify what might be an otherwise confusing and opaque purity test.
In this post, I will be committing the "no true Scotsman" fallacy, in which I start with the most liberal definition I can come up with, and gradually refine it until all that is left is the purest, gleamingest, most imaginary and unattainable nostr app imaginable. As I write this, I wonder if anything built yet will actually qualify. In any case, here we go.
It uses nostr
The lowest bar for what a "nostr app" might be is an app ("application" - i.e. software, not necessarily a native app of any kind) that has some nostr-specific code in it, but which doesn't take any advantage of what makes nostr distinctive as a protocol.
Examples might include a scraper of some kind which fulfills its charter by fetching data from relays (regardless of whether it validates or retains signatures). Another might be a regular web 2.0 app which provides an option to "log in with nostr" by requesting and storing the user's public key.
In either case, the fact that nostr is involved is entirely neutral. A scraper can scrape html, pdfs, jsonl, whatever data source - nostr relays are just another target. Likewise, a user's key in this scenario is treated merely as an opaque identifier, with no appreciation for the super powers it brings along.
In most cases, this kind of app only exists as a marketing ploy, or less cynically, because it wants to get in on the hype of being a "nostr app", without the developer quite understanding what that means, or having the budget to execute properly on the claim.
It leverages nostr
Some of you might be wondering, "isn't 'leverage' a synonym for 'use'?" And you would be right, but for one connotative difference. It's possible to "use" something improperly, but by definition leverage gives you a mechanical advantage that you wouldn't otherwise have. This is the second category of "nostr app".
This kind of app gets some benefit out of the nostr protocol and network, but in an entirely selfish fashion. The intention of this kind of app is not to augment the nostr network, but to augment its own UX by borrowing some nifty thing from the protocol without really contributing anything back.
Some examples might include:
- Using nostr signers to encrypt or sign data, and then store that data on a proprietary server.
- Using nostr relays as a kind of low-code backend, but using proprietary event payloads.
- Using nostr event kinds to represent data (why), but not leveraging the trustlessness that buys you.
An application in this category might even communicate to its users via nostr DMs - but this doesn't make it a "nostr app" any more than a website that emails you hot deals on herbal supplements is an "email app". These apps are purely parasitic on the nostr ecosystem.
In the long-term, that's not necessarily a bad thing. Email's ubiquity is self-reinforcing. But in the short term, this kind of "nostr app" can actually do damage to nostr's reputation by over-promising and under-delivering.
It complements nostr
Next up, we have apps that get some benefit out of nostr as above, but give back by providing a unique value proposition to nostr users as nostr users. This is a bit of a fine distinction, but for me this category is for apps which focus on solving problems that nostr isn't good at solving, leaving the nostr integration in a secondary or supporting role.
One example of this kind of app was Mutiny (RIP), which not only allowed users to sign in with nostr, but also pulled those users' social graphs so that users could send money to people they knew and trusted. Mutiny was doing a great job of leveraging nostr, as well as providing value to users with nostr identities - but it was still primarily a bitcoin wallet, not a "nostr app" in the purest sense.
Other examples are things like Nostr Nests and Zap.stream, whose core value proposition is streaming video or audio content. Both make great use of nostr identities, data formats, and relays, but they're primarily streaming apps. A good litmus test for things like this is: if you got rid of nostr, would it be the same product (even if inferior in certain ways)?
A similar category is infrastructure providers that benefit nostr by their existence (and may in fact be targeted explicitly at nostr users), but do things in a centralized, old-web way; for example: media hosts, DNS registrars, hosting providers, and CDNs.
To be clear here, I'm not casting aspersions (I don't even know what those are, or where to buy them). All the apps mentioned above use nostr to great effect, and are a real benefit to nostr users. But they are not True Scotsmen.
It embodies nostr
Ok, here we go. This is the crème de la crème, the top du top, the meilleur du meilleur, the bee's knees. The purest, holiest, most chaste category of nostr app out there. The apps which are, indeed, nostr indigitate.
This category of nostr app (see, no quotes this time) can be defined by the converse of the previous category. If nostr was removed from this type of application, would it be impossible to create the same product?
To tease this apart a bit, apps that leverage the technical aspects of nostr are dependent on nostr the protocol, while apps that benefit nostr exclusively via network effect are integrated into nostr the network. An app that does both things is working in symbiosis with nostr as a whole.
An app that embraces both nostr's protocol and its network becomes an organic extension of every other nostr app out there, multiplying both its competitive moat and its contribution to the ecosystem:
- In contrast to apps that only borrow from nostr on the technical level but continue to operate in their own silos, an application integrated into the nostr network comes pre-packaged with existing users, and is able to provide more value to those users because of other nostr products. On nostr, it's a good thing to advertise your competitors.
- In contrast to apps that only market themselves to nostr users without building out a deep integration on the protocol level, a deeply integrated app becomes an asset to every other nostr app by becoming an organic extension of them through interoperability. This results in increased traffic to the app as other developers and users refer people to it instead of solving their problem on their own. This is the "micro-apps" utopia we've all been waiting for.
Credible exit doesn't matter if there aren't alternative services. Interoperability is pointless if other applications don't offer something your app doesn't. Marketing to nostr users doesn't matter if you don't augment their agency as nostr users.
If I had to choose a single NIP that represents the mindset behind this kind of app, it would be NIP 89 A.K.A. "Recommended Application Handlers", which states:
Nostr's discoverability and transparent event interaction is one of its most interesting/novel mechanics. This NIP provides a simple way for clients to discover applications that handle events of a specific kind to ensure smooth cross-client and cross-kind interactions.
These handlers are the glue that holds nostr apps together. A single event, signed by the developer of an application (or by the application's own account) tells anyone who wants to know 1. what event kinds the app supports, 2. how to link to the app (if it's a client), and (if the pubkey also publishes a kind 10002), 3. which relays the app prefers.
As a sidenote, NIP 89 is currently focused more on clients, leaving DVMs, relays, signers, etc somewhat out in the cold. Updating 89 to include tailored listings for each kind of supporting app would be a huge improvement to the protocol. This, plus a good front end for navigating these listings (sorry nostrapp.link, close but no cigar) would obviate the evil centralized websites that curate apps based on arbitrary criteria.
Examples of this kind of app obviously include many kind 1 clients, as well as clients that attempt to bring the benefits of the nostr protocol and network to new use cases - whether long form content, video, image posts, music, emojis, recipes, project management, or any other "content type".
To drill down into one example, let's think for a moment about forms. What's so great about a forms app that is built on nostr? Well,
- There is a spec for forms and responses, which means that...
- Multiple clients can implement the same data format, allowing for credible exit and user choice, even of...
- Other products not focused on forms, which can still view, respond to, or embed forms, and which can send their users via NIP 89 to a client that does...
- Cryptographically sign forms and responses, which means they are self-authenticating and can be sent to...
- Multiple relays, which reduces the amount of trust necessary to be confident results haven't been deliberately "lost".
Show me a forms product that does all of those things, and isn't built on nostr. You can't, because it doesn't exist. Meanwhile, there are plenty of image hosts with APIs, streaming services, and bitcoin wallets which have basically the same levels of censorship resistance, interoperability, and network effect as if they weren't built on nostr.
It supports nostr
Notice I haven't said anything about whether relays, signers, blossom servers, software libraries, DVMs, and the accumulated addenda of the nostr ecosystem are nostr apps. Well, they are (usually).
This is the category of nostr app that gets none of the credit for doing all of the work. There's no question that they qualify as beautiful nostrcorns, because their value propositions are entirely meaningless outside of the context of nostr. Who needs a signer if you don't have a cryptographic identity you need to protect? DVMs are literally impossible to use without relays. How are you going to find the blossom server that will serve a given hash if you don't know which servers the publishing user has selected to store their content?
In addition to being entirely contextualized by nostr architecture, this type of nostr app is valuable because it does things "the nostr way". By that I mean that they don't simply try to replicate existing internet functionality into a nostr context; instead, they create entirely new ways of putting the basic building blocks of the internet back together.
A great example of this is how Nostr Connect, Nostr Wallet Connect, and DVMs all use relays as brokers, which allows service providers to avoid having to accept incoming network connections. This opens up really interesting possibilities all on its own.
So while I might hesitate to call many of these things "apps", they are certainly "nostr".
Appendix: it smells like a NINO
So, let's say you've created an app, but when you show it to people they politely smile, nod, and call it a NINO (Nostr In Name Only). What's a hacker to do? Well, here's your handy-dandy guide on how to wash that NINO stench off and Become a Nostr.
You app might be a NINO if:
- There's no NIP for your data format (or you're abusing NIP 78, 32, etc by inventing a sub-protocol inside an existing event kind)
- There's a NIP, but no one knows about it because it's in a text file on your hard drive (or buried in your project's repository)
- Your NIP imposes an incompatible/centralized/legacy web paradigm onto nostr
- Your NIP relies on trusted third (or first) parties
- There's only one implementation of your NIP (yours)
- Your core value proposition doesn't depend on relays, events, or nostr identities
- One or more relay urls are hard-coded into the source code
- Your app depends on a specific relay implementation to work (ahem, relay29)
- You don't validate event signatures
- You don't publish events to relays you don't control
- You don't read events from relays you don't control
- You use legacy web services to solve problems, rather than nostr-native solutions
- You use nostr-native solutions, but you've hardcoded their pubkeys or URLs into your app
- You don't use NIP 89 to discover clients and services
- You haven't published a NIP 89 listing for your app
- You don't leverage your users' web of trust for filtering out spam
- You don't respect your users' mute lists
- You try to "own" your users' data
Now let me just re-iterate - it's ok to be a NINO. We need NINOs, because nostr can't (and shouldn't) tackle every problem. You just need to decide whether your app, as a NINO, is actually contributing to the nostr ecosystem, or whether you're just using buzzwords to whitewash a legacy web software product.
If you're in the former camp, great! If you're in the latter, what are you waiting for? Only you can fix your NINO problem. And there are lots of ways to do this, depending on your own unique situation:
- Drop nostr support if it's not doing anyone any good. If you want to build a normal company and make some money, that's perfectly fine.
- Build out your nostr integration - start taking advantage of webs of trust, self-authenticating data, event handlers, etc.
- Work around the problem. Think you need a special relay feature for your app to work? Guess again. Consider encryption, AUTH, DVMs, or better data formats.
- Think your idea is a good one? Talk to other devs or open a PR to the nips repo. No one can adopt your NIP if they don't know about it.
- Keep going. It can sometimes be hard to distinguish a research project from a NINO. New ideas have to be built out before they can be fully appreciated.
- Listen to advice. Nostr developers are friendly and happy to help. If you're not sure why you're getting traction, ask!
I sincerely hope this article is useful for all of you out there in NINO land. Maybe this made you feel better about not passing the totally optional nostr app purity test. Or maybe it gave you some actionable next steps towards making a great NINON (Nostr In Not Only Name) app. In either case, GM and PV.
-
@ 0fa80bd3:ea7325de
2025-01-30 04:28:30"Degeneration" or "Вырождение" ![[photo_2025-01-29 23.23.15.jpeg]]
A once-functional object, now eroded by time and human intervention, stripped of its original purpose. Layers of presence accumulate—marks, alterations, traces of intent—until the very essence is obscured. Restoration is paradoxical: to reclaim, one must erase. Yet erasure is an impossibility, for to remove these imprints is to deny the existence of those who shaped them.
The work stands as a meditation on entropy, memory, and the irreversible dialogue between creation and decay.
-
@ 0fa80bd3:ea7325de
2025-01-29 15:43:42Lyn Alden - биткойн евангелист или евангелистка, я пока не понял
npub1a2cww4kn9wqte4ry70vyfwqyqvpswksna27rtxd8vty6c74era8sdcw83a
Thomas Pacchia - PubKey owner - X - @tpacchia
npub1xy6exlg37pw84cpyj05c2pdgv86hr25cxn0g7aa8g8a6v97mhduqeuhgpl
calvadev - Shopstr
npub16dhgpql60vmd4mnydjut87vla23a38j689jssaqlqqlzrtqtd0kqex0nkq
Calle - Cashu founder
npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg
Джек Дорси
npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m
21 ideas
npub1lm3f47nzyf0rjp6fsl4qlnkmzed4uj4h2gnf2vhe3l3mrj85vqks6z3c7l
Много адресов. Хз кто надо сортировать
https://github.com/aitechguy/nostr-address-book
ФиатДжеф - создатель Ностр - https://github.com/fiatjaf
npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6
EVAN KALOUDIS Zues wallet
npub19kv88vjm7tw6v9qksn2y6h4hdt6e79nh3zjcud36k9n3lmlwsleqwte2qd
Программер Коди https://github.com/CodyTseng/nostr-relay
npub1syjmjy0dp62dhccq3g97fr87tngvpvzey08llyt6ul58m2zqpzps9wf6wl
Anna Chekhovich - Managing Bitcoin at The Anti-Corruption Foundation https://x.com/AnyaChekhovich
npub1y2st7rp54277hyd2usw6shy3kxprnmpvhkezmldp7vhl7hp920aq9cfyr7
-
@ 0fa80bd3:ea7325de
2025-01-29 14:44:48![[yedinaya-rossiya-bear.png]]
1️⃣ Be where the bear roams. Stay in its territory, where it hunts for food. No point setting a trap in your backyard if the bear’s chilling in the forest.
2️⃣ Set a well-hidden trap. Bury it, disguise it, and place the bait right in the center. Bears are omnivores—just like secret police KGB agents. And what’s the tastiest bait for them? Money.
3️⃣ Wait for the bear to take the bait. When it reaches in, the trap will snap shut around its paw. It’ll be alive, but stuck. No escape.
Now, what you do with a trapped bear is another question... 😏
-
@ 0fa80bd3:ea7325de
2025-01-29 05:55:02The land that belongs to the indigenous peoples of Russia has been seized by a gang of killers who have unleashed a war of extermination. They wipe out anyone who refuses to conform to their rules. Those who disagree and stay behind are tortured and killed in prisons and labor camps. Those who flee lose their homeland, dissolve into foreign cultures, and fade away. And those who stand up to protect their people are attacked by the misled and deceived. The deceived die for the unchecked greed of a single dictator—thousands from both sides, people who just wanted to live, raise their kids, and build a future.
Now, they are forced to make an impossible choice: abandon their homeland or die. Some perish on the battlefield, others lose themselves in exile, stripped of their identity, scattered in a world that isn’t theirs.
There’s been endless debate about how to fix this, how to clear the field of the weeds that choke out every new sprout, every attempt at change. But the real problem? We can’t play by their rules. We can’t speak their language or use their weapons. We stand for humanity, and no matter how righteous our cause, we will not multiply suffering. Victory doesn’t come from matching the enemy—it comes from staying ahead, from using tools they haven’t mastered yet. That’s how wars are won.
Our only resource is the will of the people to rewrite the order of things. Historian Timothy Snyder once said that a nation cannot exist without a city. A city is where the most active part of a nation thrives. But the cities are occupied. The streets are watched. Gatherings are impossible. They control the money. They control the mail. They control the media. And any dissent is crushed before it can take root.
So I started asking myself: How do we stop this fragmentation? How do we create a space where people can rebuild their connections when they’re ready? How do we build a self-sustaining network, where everyone contributes and benefits proportionally, while keeping their freedom to leave intact? And more importantly—how do we make it spread, even in occupied territory?
In 2009, something historic happened: the internet got its own money. Thanks to Satoshi Nakamoto, the world took a massive leap forward. Bitcoin and decentralized ledgers shattered the idea that money must be controlled by the state. Now, to move or store value, all you need is an address and a key. A tiny string of text, easy to carry, impossible to seize.
That was the year money broke free. The state lost its grip. Its biggest weapon—physical currency—became irrelevant. Money became purely digital.
The internet was already a sanctuary for information, a place where people could connect and organize. But with Bitcoin, it evolved. Now, value itself could flow freely, beyond the reach of authorities.
Think about it: when seedlings are grown in controlled environments before being planted outside, they get stronger, survive longer, and bear fruit faster. That’s how we handle crops in harsh climates—nurture them until they’re ready for the wild.
Now, picture the internet as that controlled environment for ideas. Bitcoin? It’s the fertile soil that lets them grow. A testing ground for new models of interaction, where concepts can take root before they move into the real world. If nation-states are a battlefield, locked in a brutal war for territory, the internet is boundless. It can absorb any number of ideas, any number of people, and it doesn’t run out of space.
But for this ecosystem to thrive, people need safe ways to communicate, to share ideas, to build something real—without surveillance, without censorship, without the constant fear of being erased.
This is where Nostr comes in.
Nostr—"Notes and Other Stuff Transmitted by Relays"—is more than just a messaging protocol. It’s a new kind of city. One that no dictator can seize, no corporation can own, no government can shut down.
It’s built on decentralization, encryption, and individual control. Messages don’t pass through central servers—they are relayed through independent nodes, and users choose which ones to trust. There’s no master switch to shut it all down. Every person owns their identity, their data, their connections. And no one—no state, no tech giant, no algorithm—can silence them.
In a world where cities fall and governments fail, Nostr is a city that cannot be occupied. A place for ideas, for networks, for freedom. A city that grows stronger the more people build within it.
-
@ 9e69e420:d12360c2
2025-01-26 15:26:44Secretary of State Marco Rubio issued new guidance halting spending on most foreign aid grants for 90 days, including military assistance to Ukraine. This immediate order shocked State Department officials and mandates “stop-work orders” on nearly all existing foreign assistance awards.
While it allows exceptions for military financing to Egypt and Israel, as well as emergency food assistance, it restricts aid to key allies like Ukraine, Jordan, and Taiwan. The guidance raises potential liability risks for the government due to unfulfilled contracts.
A report will be prepared within 85 days to recommend which programs to continue or discontinue.
-
@ 9e69e420:d12360c2
2025-01-26 01:31:31Chef's notes
arbitray
- test
- of
- chefs notes
hedding 2
Details
- ⏲️ Prep time: 20
- 🍳 Cook time: 1 hour
- 🍽️ Servings: 5
Ingredients
- Test ingredient
- 2nd test ingredient
Directions
- Bake
- Cool
-
@ 9e69e420:d12360c2
2025-01-25 22:16:54President Trump plans to withdraw 20,000 U.S. troops from Europe and expects European allies to contribute financially to the remaining military presence. Reported by ANSA, Trump aims to deliver this message to European leaders since taking office. A European diplomat noted, “the costs cannot be borne solely by American taxpayers.”
The Pentagon hasn't commented yet. Trump has previously sought lower troop levels in Europe and had ordered cuts during his first term. The U.S. currently maintains around 65,000 troops in Europe, with total forces reaching 100,000 since the Ukraine invasion. Trump's new approach may shift military focus to the Pacific amid growing concerns about China.
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@ 6be5cc06:5259daf0
2025-01-21 20:58:37A seguir, veja como instalar e configurar o Privoxy no Pop!_OS.
1. Instalar o Tor e o Privoxy
Abra o terminal e execute:
bash sudo apt update sudo apt install tor privoxy
Explicação:
- Tor: Roteia o tráfego pela rede Tor.
- Privoxy: Proxy avançado que intermedia a conexão entre aplicativos e o Tor.
2. Configurar o Privoxy
Abra o arquivo de configuração do Privoxy:
bash sudo nano /etc/privoxy/config
Navegue até a última linha (atalho:
Ctrl
+/
depoisCtrl
+V
para navegar diretamente até a última linha) e insira:bash forward-socks5 / 127.0.0.1:9050 .
Isso faz com que o Privoxy envie todo o tráfego para o Tor através da porta 9050.
Salve (
CTRL
+O
eEnter
) e feche (CTRL
+X
) o arquivo.
3. Iniciar o Tor e o Privoxy
Agora, inicie e habilite os serviços:
bash sudo systemctl start tor sudo systemctl start privoxy sudo systemctl enable tor sudo systemctl enable privoxy
Explicação:
- start: Inicia os serviços.
- enable: Faz com que iniciem automaticamente ao ligar o PC.
4. Configurar o Navegador Firefox
Para usar a rede Tor com o Firefox:
- Abra o Firefox.
- Acesse Configurações → Configurar conexão.
- Selecione Configuração manual de proxy.
- Configure assim:
- Proxy HTTP:
127.0.0.1
- Porta:
8118
(porta padrão do Privoxy) - Domínio SOCKS (v5):
127.0.0.1
- Porta:
9050
- Proxy HTTP:
- Marque a opção "Usar este proxy também em HTTPS".
- Clique em OK.
5. Verificar a Conexão com o Tor
Abra o navegador e acesse:
text https://check.torproject.org/
Se aparecer a mensagem "Congratulations. This browser is configured to use Tor.", a configuração está correta.
Dicas Extras
- Privoxy pode ser ajustado para bloquear anúncios e rastreadores.
- Outros aplicativos também podem ser configurados para usar o Privoxy.
-
@ a1d36df6:a3b9f5a0
2025-04-29 08:02:33Originally written in: November 2024
"Show me the incentives, and I'll show you the outcome"[^mungerquote].
"Even bacteria respond to motivation." ~[^dufrene2020][^amoedo2024].
Introduction
In Austrian economics, time preference refers to the value individuals place on present consumption versus future consumption [^rothbard1993man]. A society with a lower time preference is more inclined to save, invest, and plan for the long term, thereby fostering progress and stability [^ammous2018]. In contrast, a society with a higher time preference tends toward immediate consumption rather than investment — or invests without a true understanding of its purpose — leading to short-term planning and a gradual drift from foundational societal values, traditions, and culture [^hoppe2001].
The definition of investment is the process of allocating resources to productive activities, prioritizing future gains over immediate consumption. It involves capital accumulation and is key to economic growth, as individuals delay gratification to increase future value. This approach underlies capital formation and enhances an economy's production capacity, aligning with lower time preference and fostering long-term prosperity [^mises1998].
With a foundational understanding of time preference and investment, we can begin to examine what motivates people today. Given the prevalence of high time preference in modern society, the government can capitalize on this tendency by offering immediate handouts and benefits, satisfying the population's desire for instant gratification, often at the expense of long-term prosperity and future gains. This tendency is also mirrored in mainstream media, where a focus on sensational, attention-grabbing stories diverts focus from deeper, structural issues. By amplifying polarizing narratives [^gentzkow2006media], often tied to social identity or lifestyle differences, the government and media create a cycle of constant engagement and distraction, steering public attention towards short-term controversies and away from underlying economic or social policy issues [^caplan2001rational].
Debt & Fractional-Reserve Banking
A common denominator that repeatedly emerges in such destructive behavior promoted by governments is the issue of money. As money drives the world, understanding and following its flow not only reveals how it operates but also uncovers those who wield control over it, and how human behavior is driven by it.
Money is a broad term encircling all assets that can be used for exchange, storage, and valuation, covering both physical and digital forms [^ammous2023]. Cash is a subset of money, referring specifically to physical currency, such as coins and notes.
The process of money creation, typically managed by governments and central banks, is the foundation of economic dependency within the financial system. In most economies, central banks control currency creation through mechanisms like open market operations and debt. For instance, when a central bank, such as the Federal Reserve, issues new currency, it does so by purchasing government securities from commercial banks, thus adding currency to the economy. However, this transaction is not debt-free; it obliges the government to repay the borrowed amount with interest.
In common words, the process of creating money is as follows: the government request to the central bank a certain amount of money to be printed in borrowing form. The central bank then creates that money, out of thin air, on the promise that the government will repay the central bank down the road. Since the government does not produce anything, in order to repay the central bank, the government then sells the debt via bonds to anyone who would like to buy the government debt. In even more simple words: the government and central bank creates money out of thin air based on debt [^ammous2021].
The issue with money creation is not only by the fact that it was created out of thin air, but because money creation has other issues tied to it: the debt, the creation of fractional-reserve monetary system, inflation, and interest.
This foundational reliance on debt, since it is present in the very beginning of money creation, renders the entire monetary system debt-dependent. Therefore, saving and investing within such a system becomes questionable, as the system's nature opposes the principles of sustainable wealth accumulation, thus leading human behavior not to save but to spend.
A fractional-reserve monetary system is a banking structure in which banks retain only a small fraction of their depositors' funds — historically around 10%, but today often as low as 1% [^bundesbank2024] — while lending out or investing the remainder. This setup allows banks to expand the money supply and stimulate economic activity through a process known as deposit expansion [^federalreserve1975modern]. Deposit expansion occurs when banks effectively treat a portion of deposited funds as new money, multiplying the original deposit base. For example, if a bank holds deposits totaling 1 million euros, it can lend out up to 1.9 million euros, as long as it maintains 10% of the initial deposit in reserve. This cycle can repeat, enabling banks to increase the total money supply to infinity, but the "Modern Money Mechanics: A Workbook on Bank Reserves and Deposit Expansion" and government applying it recommends not doing it above 9 times the original deposit value [^federalreserve1975modern].
To make matters worse, inflation and interest exacerbate the problems inherent in this monetary system. Interest is a foundational element of the system, initially intended to address the original debt incurred by the government. In economic terms, interest represents the "price" of time preference, a premium placed on present goods over future goods. To illustrate the impact of interest, consider the cost of a house in today's system: a house priced at 500,000 euros with a 4% variable interest rate ends up costing around 860,000 euros over 30 years, with 360,000 euros paid in interest alone.
Inflation, on the other hand, is the increase in the money supply — money printing — and can only be truly calculated by M2[^1] money supply metric. Inflation erodes the value of both assets and earned income, as each new unit of currency devalues existing money. This devaluation impacts not only the purchasing power of savings but also the real cost of goods and services over time, reducing the long-term value of assets people believe they own.
The government
Operating within a monetary system stretched beyond its limitations, the government faces the dual challenges of controlling inflation and satisfying its growing spending demands. To fund its expenditures, the government often provides public benefits — subsidies, "free" healthcare, public transport, security, military, and welfare in general — to justify continual spending and cultivate public support - via voting, in most democratic countries.
Welfare and most government programs redistribute wealth from producers to non-producers, fostering dependency on the state. Over time, this erodes individual sovereignty and expands government control, restricting freedom, and reducing people to slaves or cash cows.
The government justifies taxes as payment for welfare and public services, but also claims they curb inflation by reducing the need to print money. The logic is that by reclaiming taxpayer money, the money supply is controlled. However, this is misleading, especially when the government can print money at will, making taxation on such currency inherently flawed.
Taxes are extracted via coercion - violence - by the government onto the population. The government then decides where to allocate this money, based on their guess of what the population needs, excluding private preferences. Therefore, taxes are not an incentive to accumulate, not even to work more. Taxes are an incentive to do right the opposite: do not save and do not work more.
Another tactic the government employs is to create crises that it alone can "solve", thus requiring more taxes or funding. Recent examples include crises like COVID-19, the "green" agenda, and initiatives to combat climate change[^2]. In each case, the government presents itself as the sole solution, yet solving these crises inevitably demands additional resources — in the form of increased taxation.
Even minimal critical thinking would prompt one to question the true necessity of taxes in a government that owns and controls the money printer. Given what we now understand, if you were in the government's position, would you willingly relinquish control of money creation by tying it to something like gold, empowering people to become smarter, independent, and wealthy?
The government, through various channels — media, education, propaganda, welfare, and government subsidies — ensures that people remain obedient and uninformed. It keeps them financially constrained by increasing taxes and imposing extensive regulations, while fostering dependency through handouts, welfare, and other social programs. The government is the only entity that, by law, can use violence and coercion without prosecution [^rothbard2009].
"Anyone who, although human, is by nature not yours but someone else's"[^ambler1987].
It is therefore unsurprising that many live in a state akin to enslavement, reflecting a mindset shaped by constant dependency. It is no wonder that people are discouraged from having children, as they can barely support themselves. Nor is it surprising that individuals might question the need to continue their bloodline, believing in the illusory value of "fake money" [^kiyosaki2019] and trusting present "investments" and the government to provide a pension in old age. And it's certainly not surprising to see people asking the government for solutions to every problem, when the government leaves them no viable alternatives.
"Show me the incentives, and I'll show you the outcome"[^mungerquote].
That statement serves as a powerful tool for understanding and addressing complex issues. When observing behaviors that may appear unusual — such as individuals identifying as "trans-species," a phenomenon linked to mental health concerns [^pinna2022] — it's essential to consider the underlying incentives. Who benefits most from a society in which individuals remain financially constrained, dependent, and uninformed? A fiat-based monetary system functions as a modern form of economic control, keeping people poor by design. Taxes, effectively a penalty for productivity, contrast sharply with welfare programs, which often reward dependency and reinforce reliance on the government. Meanwhile, government narratives and selective information shape public beliefs, protecting institutional interests and discouraging critical inquiry[^3].
Conclusion
Like the fungus that infects in parasitic way an ant's nervous system - Ophiocordyceps Unilateralis -, rendering it a zombie [^britannica2024] controlled by an external force, similarly, modern bureaucracies exploit the mechanisms of fiat money, debt, and taxation [^rothbard2009] to maintain control over individuals, steering them away from self-reliance and critical thinking toward a state of perpetual dependence.
The parallels are striking: just as the fungus manipulates the ant's behavior to secure its reproduction, governments manipulate public perception, creating crises, shaping incentives, and fostering dependence[^rothbard2009] through welfare programs[^caplan2001rational], inflated debt[^ammous2018], and coercive taxation. These mechanisms suppress individuality, reduce productivity, and shift power further into centralized hands[^gentzkow2006media], leaving citizens "zombified", detached from purpose and independence.
"Even bacteria respond to motivation."[^dufrene2020]
If tolerated — even by you, dear reader — this parasitic cycle will continue to erode humanity's dignity and potential. The solution lies in reclaiming agency by building a society grounded in sound money, meaningful productivity, and spiritual and cultural foundations that connect us to higher purposes. As warned in Jeremiah 17:5 [^4], trusting fallible human systems leads to enslavement. True freedom comes from rejecting exploitative bureaucracies and embracing systems aligned with truth, autonomy, and resilience.
Another way is to fully understand the system and opt out. This requires mastering the rules and using them to your advantage. If legal avenues exist to avoid taxation, expropriation, eminent domain, or government coercion, then the first step is to change the game for yourself.
The monetary system and government incentives shape human behavior, influencing those who allow themselves to be controlled by them.
fiat #bitcoin #austrian-economics #freedom #slavery #money #government #antipropaganda #propaganda #taxes #tax #greenagenda #wef #who
Footnote
[^1]: M2 refers to savings deposits + money market mutual funds + small time deposits. M2 includes all of M1 plus "near money" (M0), which consists of savings deposits, money market accounts, and small-denomination time deposits (like certificates of deposit under a certain amount). M2 is commonly tracked by central banks to gauge medium-term economic activity and savings behavior, as it includes money that people save rather than spend immediately.
[^2]: Since the 1990s, societies worldwide have been confronted by a series of global crises, often framed as urgent and overwhelming challenges. All scams. Including deforestation, ocean and air pollution, nuclear waste, oil spills, plastic and soil pollution, drought, fossil fuel consumption, rising sea levels, species extinction, extreme weather, global warming, melting glaciers, acid rain, and, recently, climate change. Each crisis has shaped public opinion and policy, and also created new laws, regulations, and taxes.
[^3]: Politicians are merely psychopath[^hareleonmayersalinasfolino2022][^klaas2023] parasites.
[^4]: Cursed is the one who trusts in man, who draws strength from mere flesh and whose heart turns away from the Lord.
References
Bibtex
bibtex @book{ammous2018, title={The Bitcoin Standard: The Decentralized Alternative to Central Banking}, author={Ammous, Saifedean}, year={2018}, publisher={Wiley}, url={https://saifedean.com/tbs} } @book{ammous2023, author = {Saifedean Ammous}, title = {Principles of Economics}, year = {2023}, publisher = {Saifedean Ammous}, address = {Self-published}, url = {https://saifedean.com/poe} } @book{ammous2021, author = {Saifedean Ammous}, title = {The Fiat Standard: The Debt Slavery Alternative to Human Civilization}, year = {2021}, publisher = {Wiley}, address = {Hoboken, NJ}, url = {https://saifedean.com/tfs} } @book{rothbard1993man, author = {Murray N. Rothbard}, title = {Man, Economy, and State: A Treatise on Economic Principles}, year = {1993}, publisher = {Ludwig von Mises Institute}, address = {Auburn, Alabama}, note = {Originally published in 1962}, url = {https://mises.org/library/man-economy-and-state-power-and-market} } @book{hoppe2001, author = {Hans-Hermann Hoppe}, title = {Democracy: The God That Failed: The Economics and Politics of Monarchy, Democracy, and Natural Order}, year = {2001}, publisher = {Transaction Publishers}, address = {New Brunswick, NJ}, url = {https://mises.org/library/democracy-god-failed} } @book{mises1998, author = {Ludwig von Mises}, title = {Human Action: A Treatise on Economics}, year = {1998}, publisher = {Ludwig von Mises Institute}, address = {Auburn, Alabama}, note = {Originally published in 1949}, url = {https://mises.org/library/human-action-0} } @article{gentzkow2006media, author = {Matthew Gentzkow and Jesse M. Shapiro}, title = {Media Bias and Reputation}, journal = {Journal of Political Economy}, volume = {114}, number = {2}, pages = {280-316}, year = {2006}, publisher = {University of Chicago Press}, url = {https://doi.org/10.1086/499414} } @article{caplan2001rational, author = {Bryan Caplan}, title = {Rational Irrationality and the Microfoundations of Political Failure}, journal = {Public Choice}, volume = {107}, number = {3}, pages = {311-331}, year = {2001}, publisher = {Springer}, url = {https://doi.org/10.1023/A:1010349129605} } @book{federalreserve1975modern, author = {{Federal Reserve Bank of Chicago}}, title = {Modern Money Mechanics: A Workbook on Bank Reserves and Deposit Expansion}, year = {1975}, publisher = {Federal Reserve Bank of Chicago}, url = {https://archive.org/details/modern-money-mechanics/mode/2up} } @misc{bundesbank2024, author = {{Deutsche Bundesbank}}, title = {Minimum Reserves}, year = {n.d.}, url = {https://www.bundesbank.de/en/tasks/monetary-policy/minimum-reserves/minimum-reserves-625912}, note = {Accessed: 2024-11-07} } @article{ambler1987, author = {Wayne Ambler}, title = {Aristotle on Nature and Politics: The Case of Slavery}, journal = {Political Theory}, volume = {15}, number = {3}, pages = {390-410}, year = {1987}, month = {Aug.} } @book{kiyosaki2019, author = {Robert T. Kiyosaki}, title = {FAKE: Fake Money, Fake Teachers, Fake Assets: How Lies Are Making the Poor and Middle Class Poorer}, year = {2019}, month = {April}, publisher = {Plata Publishing}, address = {Scottsdale, AZ}, note = {Paperback, Illustrated Edition} } @article{hareleonmayersalinasfolino2022, title = {Psychopathy and crimes against humanity: A conceptual and empirical examination of human rights violators}, journal = {Journal of Criminal Justice}, volume = {81}, pages = {101901}, year = {2022}, issn = {0047-2352}, doi = {https://doi.org/10.1016/j.jcrimjus.2022.101901}, url = {https://www.sciencedirect.com/science/article/pii/S0047235222000216}, author = {Robert D. Hare and Elizabeth León-Mayer and Joanna Rocuant Salinas and Jorge Folino and Craig S. Neumann}, keywords = {Crimes against humanity, Human rights violators, Terrorism, Psychopathy, PCL-R, SRP-SF, Four-factor model, Latent profile analysis}, abstract = {Purpose There is a dearth of empirical data on the contributions of personality, psychopathology, and psychopathy to terrorism and its actors. Because of a fortuitous set of circumstances, we had access to a sample of men convicted of crimes against humanity (CAH) committed during the Pinochet regime, each rated by expert clinicians on the Psychopathy Checklist-Revised (PCL-R). We also had PCL-R ratings for samples of general offenders and community participants. Methods We determined the psychometric properties of the PCL-R for these samples, performed structural equation modeling (SEM) to investigate the factor structure of the PCL-R, and conducted a latent profile analysis (LPA) of the obtained factors to identify classes or subtypes within the samples. Results The PCL-R's psychometric properties and factor structure were in accord with findings from other countries and settings. The PCL-R total scores of the CAH and general offenders were virtually the same but much higher than those of the community sample. However, the CAH group had extraordinarily high scores on the Interpersonal/Affective facets yet relatively low scores on the Lifestyle/Antisocial facets. LPA identified the expected four latent classes, with most CAH men located within the Callous-Conning class. Conclusions The results of this study provide unique information about the psychopathic propensities of a sample of state violators of human rights. Their pattern of PCL-R scores was consistent with an extreme disposition for self-serving, callous, and ruthless treatment of others, without guilt or remorse, and in the absence of a prior documented history of severe antisocial behavior.} } @misc{klaas2023, author = "{Brian Klaas}", title = "{{How many politicians are psychopaths?}}", howpublished = {\url{https://www.forkingpaths.co/p/how-many-politicians-are-psychopaths}}, note = {Online; accessed 29 January 2024}, year=2023 } @article{pinna2022, title={Mental health in transgender individuals: a systematic review}, author={Pinna, Federica and Paribello, Pasquale and Somaini, Giulia and Corona, Alice and Ventriglio, Antonio and Corrias, Carolina and Frau, Ilaria and Murgia, Roberto and El Kacemi, Sabrina and Galeazzi, Gian Maria and others}, journal={International Review of Psychiatry}, volume={34}, number={3-4}, pages={292--359}, year={2022}, publisher={Taylor \& Francis}, doi={10.1080/09540261.2022.2093629}, url={https://pubmed.ncbi.nlm.nih.gov/36151828/} } @book{rothbard2009, title={Anatomy of the State}, author={Rothbard, Murray}, year={2009}, publisher={Ludwig von Mises Institute} } @misc{britannica2024, author = {{Encyclopaedia Britannica}}, title = {Zombie-Ant Fungus}, year = {n.d.}, url = {https://www.britannica.com/science/zombie-ant-fungus}, note = {Accessed: 2024-11-07} } @misc{amoedo2024, author = {Renato Amoedo}, title = {Até as bactérias respondem a uma motivação}, year = {2024}, note = {Famosa frase mencionada em entrevistas e podcasts relacionados a comportamento e motivação}, howpublished = {Comentário público}, } @article{dufrene2020, title={Mechanomicrobiology: how bacteria sense and respond to forces}, author={Dufrêne, Yves F. and Persat, Alexandre}, journal={Nature Reviews Microbiology}, volume={18}, pages={227--240}, year={2020}, month={April}, doi={10.1038/s41579-019-0314-2}, url={https://doi.org/10.1038/s41579-019-0314-2}, publisher={Springer Nature}, note={Accepted 06 December 2019, Published 20 January 2020} } @misc{mungerquote, author = {Munger, Charlie}, title = {Show me the incentive and I will show you the outcome}, note = {Often attributed to Charlie Munger, known for his wisdom on finance and life as Warren Buffett's business partner.}, howpublished = {Quote}, year = {n.d.}, url = {https://elevatesociety.com/quotes-by-charlie-munger/} }
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@ 9e69e420:d12360c2
2025-01-21 19:31:48Oregano oil is a potent natural compound that offers numerous scientifically-supported health benefits.
Active Compounds
The oil's therapeutic properties stem from its key bioactive components: - Carvacrol and thymol (primary active compounds) - Polyphenols and other antioxidant
Antimicrobial Properties
Bacterial Protection The oil demonstrates powerful antibacterial effects, even against antibiotic-resistant strains like MRSA and other harmful bacteria. Studies show it effectively inactivates various pathogenic bacteria without developing resistance.
Antifungal Effects It effectively combats fungal infections, particularly Candida-related conditions like oral thrush, athlete's foot, and nail infections.
Digestive Health Benefits
Oregano oil supports digestive wellness by: - Promoting gastric juice secretion and enzyme production - Helping treat Small Intestinal Bacterial Overgrowth (SIBO) - Managing digestive discomfort, bloating, and IBS symptoms
Anti-inflammatory and Antioxidant Effects
The oil provides significant protective benefits through: - Powerful antioxidant activity that fights free radicals - Reduction of inflammatory markers in the body - Protection against oxidative stress-related conditions
Respiratory Support
It aids respiratory health by: - Loosening mucus and phlegm - Suppressing coughs and throat irritation - Supporting overall respiratory tract function
Additional Benefits
Skin Health - Improves conditions like psoriasis, acne, and eczema - Supports wound healing through antibacterial action - Provides anti-aging benefits through antioxidant properties
Cardiovascular Health Studies show oregano oil may help: - Reduce LDL (bad) cholesterol levels - Support overall heart health
Pain Management The oil demonstrates effectiveness in: - Reducing inflammation-related pain - Managing muscle discomfort - Providing topical pain relief
Safety Note
While oregano oil is generally safe, it's highly concentrated and should be properly diluted before use Consult a healthcare provider before starting supplementation, especially if taking other medications.
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@ a296b972:e5a7a2e8
2025-04-29 07:24:4928.04.2025, 16.17 Uhr:
Russische Hobby-Flieger konnten mit ihrem Sportflugzeug namens "Andromeda" unter dem Radar bleiben und haben entlang der Hauptstromtrassen mit einem ukrainischen Zwiebelmesser die Stromleitungen gekappt. In einer scharfen Rechtskurve muss wohl eine Flugzeugtür aufgegangen sein und der Pass des Piloten fiel unbemerkt heraus. Die Identität der Täter konnte so schnell festgestellt werden.
28.04.2025, 16.43 Uhr:
Trump hat das europäische Stromnetz gekauft und die in den Umspannwerken eingebauten US-amerikanischen Chips deaktiviert. Es gibt erst wieder Strom, wenn sich die Koalition der Willigen den Friedensverhandlungen für die Ukraine anschließt. Trump hat bewusst in den sonnenreichen Ländern Spanien und Portugal begonnen, das soll als Warnung für ganz Europa gelten. Frau von der Leyen hat bereits scharfen Protest eingelegt, doch Trump hat die SMS sofort gelöscht.
28.04.2025, 17.12 Uhr:
Selensky hat einen Cyber-Angriff auf das europäische Stromnetz gestartet. Er ist wütend, weil sich Macron in dem 15-Minuten-Gespräch mit Trump am Rande der Beerdigung des Papstes in Rom hat abwimmeln lassen. Er beendet die Strom-Blockade erst, wenn Spanien, Portugal und Frankreich Deutschland dazu zwingen, endlich Taurus zu liefern. Auf die Frage, wie Selensky das angestellt hat, soll er geantwortet haben: "Sie sehen ja, wir können es."
Ist natürlich alles nur Joke! Es sollte nur einmal in Bezug auf die Sprengung der Nordstream 2 Pipelines aufgezeigt werden, wie schnell auch unsereins abstruse Erklärungen liefern kann, die vorne und hinten nicht stimmen können.
Dieser Beitrag wurde mit dem Pareto-Client geschrieben.
(Bild von pixabay)
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@ b17fccdf:b7211155
2025-01-21 17:02:21The past 26 August, Tor introduced officially a proof-of-work (PoW) defense for onion services designed to prioritize verified network traffic as a deterrent against denial of service (DoS) attacks.
~ > This feature at the moment, is deactivate by default, so you need to follow these steps to activate this on a MiniBolt node:
- Make sure you have the latest version of Tor installed, at the time of writing this post, which is v0.4.8.6. Check your current version by typing
tor --version
Example of expected output:
Tor version 0.4.8.6. This build of Tor is covered by the GNU General Public License (https://www.gnu.org/licenses/gpl-3.0.en.html) Tor is running on Linux with Libevent 2.1.12-stable, OpenSSL 3.0.9, Zlib 1.2.13, Liblzma 5.4.1, Libzstd N/A and Glibc 2.36 as libc. Tor compiled with GCC version 12.2.0
~ > If you have v0.4.8.X, you are OK, if not, type
sudo apt update && sudo apt upgrade
and confirm to update.- Basic PoW support can be checked by running this command:
tor --list-modules
Expected output:
relay: yes dirauth: yes dircache: yes pow: **yes**
~ > If you have
pow: yes
, you are OK- Now go to the torrc file of your MiniBolt and add the parameter to enable PoW for each hidden service added
sudo nano /etc/tor/torrc
Example:
```
Hidden Service BTC RPC Explorer
HiddenServiceDir /var/lib/tor/hidden_service_btcrpcexplorer/ HiddenServiceVersion 3 HiddenServicePoWDefensesEnabled 1 HiddenServicePort 80 127.0.0.1:3002 ```
~ > Bitcoin Core and LND use the Tor control port to automatically create the hidden service, requiring no action from the user. We have submitted a feature request in the official GitHub repositories to explore the need for the integration of Tor's PoW defense into the automatic creation process of the hidden service. You can follow them at the following links:
- Bitcoin Core: https://github.com/lightningnetwork/lnd/issues/8002
- LND: https://github.com/bitcoin/bitcoin/issues/28499
More info:
- https://blog.torproject.org/introducing-proof-of-work-defense-for-onion-services/
- https://gitlab.torproject.org/tpo/onion-services/onion-support/-/wikis/Documentation/PoW-FAQ
Enjoy it MiniBolter! 💙
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@ 83279ad2:bd49240d
2025-04-29 05:53:52test
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@ 57d1a264:69f1fee1
2025-04-29 05:43:02A debonair day-to-night hideaway fuses heritage charm with contemporary flair in the Penang capital of George Town...
Housed in a historic landmark on George Town’s atmospheric Lebuh Farquhar, just a stone’s throw from the iconic Eastern & Oriental Hotel, MOJO JOJO is a café and brunch spot by day, and a refined eatery come nightfall. With an effortlessly cool edge, the space has been designed by Empt Studio and combines contemporary charm with the energy of this Malaysian city.
Split into two sections, the venue caters to both hotel guests and passersby. One side offers an intimate, tailored dining experience for those seeking a respite from the buzz of outside, while the other spills out onto the street, embracing George Town’s lively buzz. The soaring ceilings create a sense of openness, further enhanced by the introduction of a mezzanine above the kitchen, maximising space without compromising on airiness.
Natural materials feature throughout with custom bamboo display systems and solid Nyatoh timber fixtures lending a rich, textural warmth. Deliberately crafted interlocking joints pay homage to traditional woodworking techniques, reinforcing both strength and authenticity. Every detail nods to meticulous craftsmanship, from the aged wood grains to the earthy material palette that echoes the heritage of its surroundings.
Lighting plays a supporting yet pivotal role, with carefully curated, softly diffused illumination accentuating the textures and forms within. The interplay of warm light and natural materials fosters an immersive, atmospheric retreat from the fast-paced city outside.
A refuge for slow mornings and, later on, offering a more cultured affair, MOJO JOJO is a debonair dining spot for the handsome Penang capital.
Read more https://www.emptstudio.com/projects/mojojojo
originally posted at https://stacker.news/items/966008
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@ 57d1a264:69f1fee1
2025-04-29 05:23:45Hubless Wheels + Donut Motor brings manufacturing & performance benefits
Verge Next, a subsidiary of Estonia-based Verge Motorcycles, invented this Donut Motor. It's designed to drive a hubless wheel. Although once seen as something that simply looked cool in renderings, the company says the hubless arrangement brings performance and manufacturing benefits, "delivering unmatched torque and power density with minimal weight."
For one thing, there's no chain, belt or drivetrain required. Secondly, it frees the body of the bike from the task of holding the motor—everything is now contained within that rear wheel.
The company has not only incorporated the Donut Motor into their own bikes, but is now licensing the technology. Assuming it does what it says on the tin, our future streetscapes will be covered with hubless bikes, scooters and motorcycles.
Here's a closer look at a Verge bike and how its design is influenced by the motor:
https://www.youtube.com/watch?v=Og9vlJRe2-M
originally posted at https://stacker.news/items/966001
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@ 6be5cc06:5259daf0
2025-01-21 01:51:46Bitcoin: Um sistema de dinheiro eletrônico direto entre pessoas.
Satoshi Nakamoto
satoshin@gmx.com
www.bitcoin.org
Resumo
O Bitcoin é uma forma de dinheiro digital que permite pagamentos diretos entre pessoas, sem a necessidade de um banco ou instituição financeira. Ele resolve um problema chamado gasto duplo, que ocorre quando alguém tenta gastar o mesmo dinheiro duas vezes. Para evitar isso, o Bitcoin usa uma rede descentralizada onde todos trabalham juntos para verificar e registrar as transações.
As transações são registradas em um livro público chamado blockchain, protegido por uma técnica chamada Prova de Trabalho. Essa técnica cria uma cadeia de registros que não pode ser alterada sem refazer todo o trabalho já feito. Essa cadeia é mantida pelos computadores que participam da rede, e a mais longa é considerada a verdadeira.
Enquanto a maior parte do poder computacional da rede for controlada por participantes honestos, o sistema continuará funcionando de forma segura. A rede é flexível, permitindo que qualquer pessoa entre ou saia a qualquer momento, sempre confiando na cadeia mais longa como prova do que aconteceu.
1. Introdução
Hoje, quase todos os pagamentos feitos pela internet dependem de bancos ou empresas como processadores de pagamento (cartões de crédito, por exemplo) para funcionar. Embora esse sistema seja útil, ele tem problemas importantes porque é baseado em confiança.
Primeiro, essas empresas podem reverter pagamentos, o que é útil em caso de erros, mas cria custos e incertezas. Isso faz com que pequenas transações, como pagar centavos por um serviço, se tornem inviáveis. Além disso, os comerciantes são obrigados a desconfiar dos clientes, pedindo informações extras e aceitando fraudes como algo inevitável.
Esses problemas não existem no dinheiro físico, como o papel-moeda, onde o pagamento é final e direto entre as partes. No entanto, não temos como enviar dinheiro físico pela internet sem depender de um intermediário confiável.
O que precisamos é de um sistema de pagamento eletrônico baseado em provas matemáticas, não em confiança. Esse sistema permitiria que qualquer pessoa enviasse dinheiro diretamente para outra, sem depender de bancos ou processadores de pagamento. Além disso, as transações seriam irreversíveis, protegendo vendedores contra fraudes, mas mantendo a possibilidade de soluções para disputas legítimas.
Neste documento, apresentamos o Bitcoin, que resolve o problema do gasto duplo usando uma rede descentralizada. Essa rede cria um registro público e protegido por cálculos matemáticos, que garante a ordem das transações. Enquanto a maior parte da rede for controlada por pessoas honestas, o sistema será seguro contra ataques.
2. Transações
Para entender como funciona o Bitcoin, é importante saber como as transações são realizadas. Imagine que você quer transferir uma "moeda digital" para outra pessoa. No sistema do Bitcoin, essa "moeda" é representada por uma sequência de registros que mostram quem é o atual dono. Para transferi-la, você adiciona um novo registro comprovando que agora ela pertence ao próximo dono. Esse registro é protegido por um tipo especial de assinatura digital.
O que é uma assinatura digital?
Uma assinatura digital é como uma senha secreta, mas muito mais segura. No Bitcoin, cada usuário tem duas chaves: uma "chave privada", que é secreta e serve para criar a assinatura, e uma "chave pública", que pode ser compartilhada com todos e é usada para verificar se a assinatura é válida. Quando você transfere uma moeda, usa sua chave privada para assinar a transação, provando que você é o dono. A próxima pessoa pode usar sua chave pública para confirmar isso.
Como funciona na prática?
Cada "moeda" no Bitcoin é, na verdade, uma cadeia de assinaturas digitais. Vamos imaginar o seguinte cenário:
- A moeda está com o Dono 0 (você). Para transferi-la ao Dono 1, você assina digitalmente a transação com sua chave privada. Essa assinatura inclui o código da transação anterior (chamado de "hash") e a chave pública do Dono 1.
- Quando o Dono 1 quiser transferir a moeda ao Dono 2, ele assinará a transação seguinte com sua própria chave privada, incluindo também o hash da transação anterior e a chave pública do Dono 2.
- Esse processo continua, formando uma "cadeia" de transações. Qualquer pessoa pode verificar essa cadeia para confirmar quem é o atual dono da moeda.
Resolvendo o problema do gasto duplo
Um grande desafio com moedas digitais é o "gasto duplo", que é quando uma mesma moeda é usada em mais de uma transação. Para evitar isso, muitos sistemas antigos dependiam de uma entidade central confiável, como uma casa da moeda, que verificava todas as transações. No entanto, isso criava um ponto único de falha e centralizava o controle do dinheiro.
O Bitcoin resolve esse problema de forma inovadora: ele usa uma rede descentralizada onde todos os participantes (os "nós") têm acesso a um registro completo de todas as transações. Cada nó verifica se as transações são válidas e se a moeda não foi gasta duas vezes. Quando a maioria dos nós concorda com a validade de uma transação, ela é registrada permanentemente na blockchain.
Por que isso é importante?
Essa solução elimina a necessidade de confiar em uma única entidade para gerenciar o dinheiro, permitindo que qualquer pessoa no mundo use o Bitcoin sem precisar de permissão de terceiros. Além disso, ela garante que o sistema seja seguro e resistente a fraudes.
3. Servidor Timestamp
Para assegurar que as transações sejam realizadas de forma segura e transparente, o sistema Bitcoin utiliza algo chamado de "servidor de registro de tempo" (timestamp). Esse servidor funciona como um registro público que organiza as transações em uma ordem específica.
Ele faz isso agrupando várias transações em blocos e criando um código único chamado "hash". Esse hash é como uma impressão digital que representa todo o conteúdo do bloco. O hash de cada bloco é amplamente divulgado, como se fosse publicado em um jornal ou em um fórum público.
Esse processo garante que cada bloco de transações tenha um registro de quando foi criado e que ele existia naquele momento. Além disso, cada novo bloco criado contém o hash do bloco anterior, formando uma cadeia contínua de blocos conectados — conhecida como blockchain.
Com isso, se alguém tentar alterar qualquer informação em um bloco anterior, o hash desse bloco mudará e não corresponderá ao hash armazenado no bloco seguinte. Essa característica torna a cadeia muito segura, pois qualquer tentativa de fraude seria imediatamente detectada.
O sistema de timestamps é essencial para provar a ordem cronológica das transações e garantir que cada uma delas seja única e autêntica. Dessa forma, ele reforça a segurança e a confiança na rede Bitcoin.
4. Prova-de-Trabalho
Para implementar o registro de tempo distribuído no sistema Bitcoin, utilizamos um mecanismo chamado prova-de-trabalho. Esse sistema é semelhante ao Hashcash, desenvolvido por Adam Back, e baseia-se na criação de um código único, o "hash", por meio de um processo computacionalmente exigente.
A prova-de-trabalho envolve encontrar um valor especial que, quando processado junto com as informações do bloco, gere um hash que comece com uma quantidade específica de zeros. Esse valor especial é chamado de "nonce". Encontrar o nonce correto exige um esforço significativo do computador, porque envolve tentativas repetidas até que a condição seja satisfeita.
Esse processo é importante porque torna extremamente difícil alterar qualquer informação registrada em um bloco. Se alguém tentar mudar algo em um bloco, seria necessário refazer o trabalho de computação não apenas para aquele bloco, mas também para todos os blocos que vêm depois dele. Isso garante a segurança e a imutabilidade da blockchain.
A prova-de-trabalho também resolve o problema de decidir qual cadeia de blocos é a válida quando há múltiplas cadeias competindo. A decisão é feita pela cadeia mais longa, pois ela representa o maior esforço computacional já realizado. Isso impede que qualquer indivíduo ou grupo controle a rede, desde que a maioria do poder de processamento seja mantida por participantes honestos.
Para garantir que o sistema permaneça eficiente e equilibrado, a dificuldade da prova-de-trabalho é ajustada automaticamente ao longo do tempo. Se novos blocos estiverem sendo gerados rapidamente, a dificuldade aumenta; se estiverem sendo gerados muito lentamente, a dificuldade diminui. Esse ajuste assegura que novos blocos sejam criados aproximadamente a cada 10 minutos, mantendo o sistema estável e funcional.
5. Rede
A rede Bitcoin é o coração do sistema e funciona de maneira distribuída, conectando vários participantes (ou nós) para garantir o registro e a validação das transações. Os passos para operar essa rede são:
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Transmissão de Transações: Quando alguém realiza uma nova transação, ela é enviada para todos os nós da rede. Isso é feito para garantir que todos estejam cientes da operação e possam validá-la.
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Coleta de Transações em Blocos: Cada nó agrupa as novas transações recebidas em um "bloco". Este bloco será preparado para ser adicionado à cadeia de blocos (a blockchain).
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Prova-de-Trabalho: Os nós competem para resolver a prova-de-trabalho do bloco, utilizando poder computacional para encontrar um hash válido. Esse processo é como resolver um quebra-cabeça matemático difícil.
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Envio do Bloco Resolvido: Quando um nó encontra a solução para o bloco (a prova-de-trabalho), ele compartilha esse bloco com todos os outros nós na rede.
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Validação do Bloco: Cada nó verifica o bloco recebido para garantir que todas as transações nele contidas sejam válidas e que nenhuma moeda tenha sido gasta duas vezes. Apenas blocos válidos são aceitos.
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Construção do Próximo Bloco: Os nós que aceitaram o bloco começam a trabalhar na criação do próximo bloco, utilizando o hash do bloco aceito como base (hash anterior). Isso mantém a continuidade da cadeia.
Resolução de Conflitos e Escolha da Cadeia Mais Longa
Os nós sempre priorizam a cadeia mais longa, pois ela representa o maior esforço computacional já realizado, garantindo maior segurança. Se dois blocos diferentes forem compartilhados simultaneamente, os nós trabalharão no primeiro bloco recebido, mas guardarão o outro como uma alternativa. Caso o segundo bloco eventualmente forme uma cadeia mais longa (ou seja, tenha mais blocos subsequentes), os nós mudarão para essa nova cadeia.
Tolerância a Falhas
A rede é robusta e pode lidar com mensagens que não chegam a todos os nós. Uma transação não precisa alcançar todos os nós de imediato; basta que chegue a um número suficiente deles para ser incluída em um bloco. Da mesma forma, se um nó não receber um bloco em tempo hábil, ele pode solicitá-lo ao perceber que está faltando quando o próximo bloco é recebido.
Esse mecanismo descentralizado permite que a rede Bitcoin funcione de maneira segura, confiável e resiliente, sem depender de uma autoridade central.
6. Incentivo
O incentivo é um dos pilares fundamentais que sustenta o funcionamento da rede Bitcoin, garantindo que os participantes (nós) continuem operando de forma honesta e contribuindo com recursos computacionais. Ele é estruturado em duas partes principais: a recompensa por mineração e as taxas de transação.
Recompensa por Mineração
Por convenção, o primeiro registro em cada bloco é uma transação especial que cria novas moedas e as atribui ao criador do bloco. Essa recompensa incentiva os mineradores a dedicarem poder computacional para apoiar a rede. Como não há uma autoridade central para emitir moedas, essa é a maneira pela qual novas moedas entram em circulação. Esse processo pode ser comparado ao trabalho de garimpeiros, que utilizam recursos para colocar mais ouro em circulação. No caso do Bitcoin, o "recurso" consiste no tempo de CPU e na energia elétrica consumida para resolver a prova-de-trabalho.
Taxas de Transação
Além da recompensa por mineração, os mineradores também podem ser incentivados pelas taxas de transação. Se uma transação utiliza menos valor de saída do que o valor de entrada, a diferença é tratada como uma taxa, que é adicionada à recompensa do bloco contendo essa transação. Com o passar do tempo e à medida que o número de moedas em circulação atinge o limite predeterminado, essas taxas de transação se tornam a principal fonte de incentivo, substituindo gradualmente a emissão de novas moedas. Isso permite que o sistema opere sem inflação, uma vez que o número total de moedas permanece fixo.
Incentivo à Honestidade
O design do incentivo também busca garantir que os participantes da rede mantenham um comportamento honesto. Para um atacante que consiga reunir mais poder computacional do que o restante da rede, ele enfrentaria duas escolhas:
- Usar esse poder para fraudar o sistema, como reverter transações e roubar pagamentos.
- Seguir as regras do sistema, criando novos blocos e recebendo recompensas legítimas.
A lógica econômica favorece a segunda opção, pois um comportamento desonesto prejudicaria a confiança no sistema, diminuindo o valor de todas as moedas, incluindo aquelas que o próprio atacante possui. Jogar dentro das regras não apenas maximiza o retorno financeiro, mas também preserva a validade e a integridade do sistema.
Esse mecanismo garante que os incentivos econômicos estejam alinhados com o objetivo de manter a rede segura, descentralizada e funcional ao longo do tempo.
7. Recuperação do Espaço em Disco
Depois que uma moeda passa a estar protegida por muitos blocos na cadeia, as informações sobre as transações antigas que a geraram podem ser descartadas para economizar espaço em disco. Para que isso seja possível sem comprometer a segurança, as transações são organizadas em uma estrutura chamada "árvore de Merkle". Essa árvore funciona como um resumo das transações: em vez de armazenar todas elas, guarda apenas um "hash raiz", que é como uma assinatura compacta que representa todo o grupo de transações.
Os blocos antigos podem, então, ser simplificados, removendo as partes desnecessárias dessa árvore. Apenas a raiz do hash precisa ser mantida no cabeçalho do bloco, garantindo que a integridade dos dados seja preservada, mesmo que detalhes específicos sejam descartados.
Para exemplificar: imagine que você tenha vários recibos de compra. Em vez de guardar todos os recibos, você cria um documento e lista apenas o valor total de cada um. Mesmo que os recibos originais sejam descartados, ainda é possível verificar a soma com base nos valores armazenados.
Além disso, o espaço ocupado pelos blocos em si é muito pequeno. Cada bloco sem transações ocupa apenas cerca de 80 bytes. Isso significa que, mesmo com blocos sendo gerados a cada 10 minutos, o crescimento anual em espaço necessário é insignificante: apenas 4,2 MB por ano. Com a capacidade de armazenamento dos computadores crescendo a cada ano, esse espaço continuará sendo trivial, garantindo que a rede possa operar de forma eficiente sem problemas de armazenamento, mesmo a longo prazo.
8. Verificação de Pagamento Simplificada
É possível confirmar pagamentos sem a necessidade de operar um nó completo da rede. Para isso, o usuário precisa apenas de uma cópia dos cabeçalhos dos blocos da cadeia mais longa (ou seja, a cadeia com maior esforço de trabalho acumulado). Ele pode verificar a validade de uma transação ao consultar os nós da rede até obter a confirmação de que tem a cadeia mais longa. Para isso, utiliza-se o ramo Merkle, que conecta a transação ao bloco em que ela foi registrada.
Entretanto, o método simplificado possui limitações: ele não pode confirmar uma transação isoladamente, mas sim assegurar que ela ocupa um lugar específico na cadeia mais longa. Dessa forma, se um nó da rede aprova a transação, os blocos subsequentes reforçam essa aceitação.
A verificação simplificada é confiável enquanto a maioria dos nós da rede for honesta. Contudo, ela se torna vulnerável caso a rede seja dominada por um invasor. Nesse cenário, um atacante poderia fabricar transações fraudulentas que enganariam o usuário temporariamente até que o invasor obtivesse controle completo da rede.
Uma estratégia para mitigar esse risco é configurar alertas nos softwares de nós completos. Esses alertas identificam blocos inválidos, sugerindo ao usuário baixar o bloco completo para confirmar qualquer inconsistência. Para maior segurança, empresas que realizam pagamentos frequentes podem preferir operar seus próprios nós, reduzindo riscos e permitindo uma verificação mais direta e confiável.
9. Combinando e Dividindo Valor
No sistema Bitcoin, cada unidade de valor é tratada como uma "moeda" individual, mas gerenciar cada centavo como uma transação separada seria impraticável. Para resolver isso, o Bitcoin permite que valores sejam combinados ou divididos em transações, facilitando pagamentos de qualquer valor.
Entradas e Saídas
Cada transação no Bitcoin é composta por:
- Entradas: Representam os valores recebidos em transações anteriores.
- Saídas: Correspondem aos valores enviados, divididos entre os destinatários e, eventualmente, o troco para o remetente.
Normalmente, uma transação contém:
- Uma única entrada com valor suficiente para cobrir o pagamento.
- Ou várias entradas combinadas para atingir o valor necessário.
O valor total das saídas nunca excede o das entradas, e a diferença (se houver) pode ser retornada ao remetente como troco.
Exemplo Prático
Imagine que você tem duas entradas:
- 0,03 BTC
- 0,07 BTC
Se deseja enviar 0,08 BTC para alguém, a transação terá:
- Entrada: As duas entradas combinadas (0,03 + 0,07 BTC = 0,10 BTC).
- Saídas: Uma para o destinatário (0,08 BTC) e outra como troco para você (0,02 BTC).
Essa flexibilidade permite que o sistema funcione sem precisar manipular cada unidade mínima individualmente.
Difusão e Simplificação
A difusão de transações, onde uma depende de várias anteriores e assim por diante, não representa um problema. Não é necessário armazenar ou verificar o histórico completo de uma transação para utilizá-la, já que o registro na blockchain garante sua integridade.
10. Privacidade
O modelo bancário tradicional oferece um certo nível de privacidade, limitando o acesso às informações financeiras apenas às partes envolvidas e a um terceiro confiável (como bancos ou instituições financeiras). No entanto, o Bitcoin opera de forma diferente, pois todas as transações são publicamente registradas na blockchain. Apesar disso, a privacidade pode ser mantida utilizando chaves públicas anônimas, que desvinculam diretamente as transações das identidades das partes envolvidas.
Fluxo de Informação
- No modelo tradicional, as transações passam por um terceiro confiável que conhece tanto o remetente quanto o destinatário.
- No Bitcoin, as transações são anunciadas publicamente, mas sem revelar diretamente as identidades das partes. Isso é comparável a dados divulgados por bolsas de valores, onde informações como o tempo e o tamanho das negociações (a "fita") são públicas, mas as identidades das partes não.
Protegendo a Privacidade
Para aumentar a privacidade no Bitcoin, são adotadas as seguintes práticas:
- Chaves Públicas Anônimas: Cada transação utiliza um par de chaves diferentes, dificultando a associação com um proprietário único.
- Prevenção de Ligação: Ao usar chaves novas para cada transação, reduz-se a possibilidade de links evidentes entre múltiplas transações realizadas pelo mesmo usuário.
Riscos de Ligação
Embora a privacidade seja fortalecida, alguns riscos permanecem:
- Transações multi-entrada podem revelar que todas as entradas pertencem ao mesmo proprietário, caso sejam necessárias para somar o valor total.
- O proprietário da chave pode ser identificado indiretamente por transações anteriores que estejam conectadas.
11. Cálculos
Imagine que temos um sistema onde as pessoas (ou computadores) competem para adicionar informações novas (blocos) a um grande registro público (a cadeia de blocos ou blockchain). Este registro é como um livro contábil compartilhado, onde todos podem verificar o que está escrito.
Agora, vamos pensar em um cenário: um atacante quer enganar o sistema. Ele quer mudar informações já registradas para beneficiar a si mesmo, por exemplo, desfazendo um pagamento que já fez. Para isso, ele precisa criar uma versão alternativa do livro contábil (a cadeia de blocos dele) e convencer todos os outros participantes de que essa versão é a verdadeira.
Mas isso é extremamente difícil.
Como o Ataque Funciona
Quando um novo bloco é adicionado à cadeia, ele depende de cálculos complexos que levam tempo e esforço. Esses cálculos são como um grande quebra-cabeça que precisa ser resolvido.
- Os “bons jogadores” (nós honestos) estão sempre trabalhando juntos para resolver esses quebra-cabeças e adicionar novos blocos à cadeia verdadeira.
- O atacante, por outro lado, precisa resolver quebra-cabeças sozinho, tentando “alcançar” a cadeia honesta para que sua versão alternativa pareça válida.
Se a cadeia honesta já está vários blocos à frente, o atacante começa em desvantagem, e o sistema está projetado para que a dificuldade de alcançá-los aumente rapidamente.
A Corrida Entre Cadeias
Você pode imaginar isso como uma corrida. A cada bloco novo que os jogadores honestos adicionam à cadeia verdadeira, eles se distanciam mais do atacante. Para vencer, o atacante teria que resolver os quebra-cabeças mais rápido que todos os outros jogadores honestos juntos.
Suponha que:
- A rede honesta tem 80% do poder computacional (ou seja, resolve 8 de cada 10 quebra-cabeças).
- O atacante tem 20% do poder computacional (ou seja, resolve 2 de cada 10 quebra-cabeças).
Cada vez que a rede honesta adiciona um bloco, o atacante tem que "correr atrás" e resolver mais quebra-cabeças para alcançar.
Por Que o Ataque Fica Cada Vez Mais Improvável?
Vamos usar uma fórmula simples para mostrar como as chances de sucesso do atacante diminuem conforme ele precisa "alcançar" mais blocos:
P = (q/p)^z
- q é o poder computacional do atacante (20%, ou 0,2).
- p é o poder computacional da rede honesta (80%, ou 0,8).
- z é a diferença de blocos entre a cadeia honesta e a cadeia do atacante.
Se o atacante está 5 blocos atrás (z = 5):
P = (0,2 / 0,8)^5 = (0,25)^5 = 0,00098, (ou, 0,098%)
Isso significa que o atacante tem menos de 0,1% de chance de sucesso — ou seja, é muito improvável.
Se ele estiver 10 blocos atrás (z = 10):
P = (0,2 / 0,8)^10 = (0,25)^10 = 0,000000095, (ou, 0,0000095%).
Neste caso, as chances de sucesso são praticamente nulas.
Um Exemplo Simples
Se você jogar uma moeda, a chance de cair “cara” é de 50%. Mas se precisar de 10 caras seguidas, sua chance já é bem menor. Se precisar de 20 caras seguidas, é quase impossível.
No caso do Bitcoin, o atacante precisa de muito mais do que 20 caras seguidas. Ele precisa resolver quebra-cabeças extremamente difíceis e alcançar os jogadores honestos que estão sempre à frente. Isso faz com que o ataque seja inviável na prática.
Por Que Tudo Isso é Seguro?
- A probabilidade de sucesso do atacante diminui exponencialmente. Isso significa que, quanto mais tempo passa, menor é a chance de ele conseguir enganar o sistema.
- A cadeia verdadeira (honesta) está protegida pela força da rede. Cada novo bloco que os jogadores honestos adicionam à cadeia torna mais difícil para o atacante alcançar.
E Se o Atacante Tentar Continuar?
O atacante poderia continuar tentando indefinidamente, mas ele estaria gastando muito tempo e energia sem conseguir nada. Enquanto isso, os jogadores honestos estão sempre adicionando novos blocos, tornando o trabalho do atacante ainda mais inútil.
Assim, o sistema garante que a cadeia verdadeira seja extremamente segura e que ataques sejam, na prática, impossíveis de ter sucesso.
12. Conclusão
Propusemos um sistema de transações eletrônicas que elimina a necessidade de confiança, baseando-se em assinaturas digitais e em uma rede peer-to-peer que utiliza prova de trabalho. Isso resolve o problema do gasto duplo, criando um histórico público de transações imutável, desde que a maioria do poder computacional permaneça sob controle dos participantes honestos. A rede funciona de forma simples e descentralizada, com nós independentes que não precisam de identificação ou coordenação direta. Eles entram e saem livremente, aceitando a cadeia de prova de trabalho como registro do que ocorreu durante sua ausência. As decisões são tomadas por meio do poder de CPU, validando blocos legítimos, estendendo a cadeia e rejeitando os inválidos. Com este mecanismo de consenso, todas as regras e incentivos necessários para o funcionamento seguro e eficiente do sistema são garantidos.
Faça o download do whitepaper original em português: https://bitcoin.org/files/bitcoin-paper/bitcoin_pt_br.pdf
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@ 3f770d65:7a745b24
2025-01-19 21:48:49The recent shutdown of TikTok in the United States due to a potential government ban serves as a stark reminder how fragile centralized platforms truly are under the surface. While these platforms offer convenience, a more polished user experience, and connectivity, they are ultimately beholden to governments, corporations, and other authorities. This makes them vulnerable to censorship, regulation, and outright bans. In contrast, Nostr represents a shift in how we approach online communication and content sharing. Built on the principles of decentralization and user choice, Nostr cannot be banned, because it is not a platform—it is a protocol.
PROTOCOLS, NOT PLATFORMS.
At the heart of Nostr's philosophy is user choice, a feature that fundamentally sets it apart from legacy platforms. In centralized systems, the user experience is dictated by a single person or governing entity. If the platform decides to filter, censor, or ban specific users or content, individuals are left with little action to rectify the situation. They must either accept the changes or abandon the platform entirely, often at the cost of losing their social connections, their data, and their identity.
What's happening with TikTok could never happen on Nostr. With Nostr, the dynamics are completely different. Because it is a protocol, not a platform, no single entity controls the ecosystem. Instead, the protocol enables a network of applications and relays that users can freely choose from. If a particular application or relay implements policies that a user disagrees with, such as censorship, filtering, or even government enforced banning, they are not trapped or abandoned. They have the freedom to move to another application or relay with minimal effort.
THIS IS POWERFUL.
Take, for example, the case of a relay that decides to censor specific content. On a legacy platform, this would result in frustration and a loss of access for users. On Nostr, however, users can simply connect to a different relay that does not impose such restrictions. Similarly, if an application introduces features or policies that users dislike, they can migrate to a different application that better suits their preferences, all while retaining their identity and social connections.
The same principles apply to government bans and censorship. A government can ban a specific application or even multiple applications, just as it can block one relay or several relays. China has implemented both tactics, yet Chinese users continue to exist and actively participate on Nostr, demonstrating Nostr's ability to resistant censorship.
How? Simply, it turns into a game of whack-a-mole. When one relay is censored, another quickly takes its place. When one application is banned, another emerges. Users can also bypass these obstacles by running their own relays and applications directly from their homes or personal devices, eliminating reliance on larger entities or organizations and ensuring continuous access.
AGAIN, THIS IS POWERUFL.
Nostr's open and decentralized design makes it resistant to the kinds of government intervention that led to TikTok's outages this weekend and potential future ban in the next 90 days. There is no central server to target, no company to regulate, and no single point of failure. (Insert your CEO jokes here). As long as there are individuals running relays and applications, users continue creating notes and sending zaps.
Platforms like TikTok can be silenced with the stroke of a pen, leaving millions of users disconnected and abandoned. Social communication should not be silenced so incredibly easily. No one should have that much power over social interactions.
Will we on-board a massive wave of TikTokers in the coming hours or days? I don't know.
TikTokers may not be ready for Nostr yet, and honestly, Nostr may not be ready for them either. The ecosystem still lacks the completely polished applications, tools, and services they’re accustomed to. This is where we say "we're still early". They may not be early adopters like the current Nostr user base. Until we bridge that gap, they’ll likely move to the next centralized platform, only to face another government ban or round of censorship in the future. But eventually, there will come a tipping point, a moment when they’ve had enough. When that time comes, I hope we’re prepared. If we’re not, we risk missing a tremendous opportunity to onboard people who genuinely need Nostr’s freedom.
Until then, to all of the Nostr developers out there, keep up the great work and keep building. Your hard work and determination is needed.
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@ cff1720e:15c7e2b2
2025-01-19 17:48:02Einleitung\ \ Schwierige Dinge einfach zu erklären ist der Anspruch von ELI5 (explain me like I'm 5). Das ist in unserer hoch technisierten Welt dringend erforderlich, denn nur mit dem Verständnis der Technologien können wir sie richtig einsetzen und weiter entwickeln.\ Ich starte meine Serie mit Nostr, einem relativ neuen Internet-Protokoll. Was zum Teufel ist ein Internet-Protokoll? Formal beschrieben sind es internationale Standards, die dafür sorgen, dass das Internet seit über 30 Jahren ziemlich gut funktioniert. Es ist die Sprache, in der sich die Rechner miteinander unterhalten und die auch Sie täglich nutzen, vermutlich ohne es bewusst wahrzunehmen. http(s) transportiert ihre Anfrage an einen Server (z.B. Amazon), und html sorgt dafür, dass aus den gelieferten Daten eine schöne Seite auf ihrem Bildschirm entsteht. Eine Mail wird mit smtp an den Mailserver gesendet und mit imap von ihm abgerufen, und da alle den Standard verwenden, funktioniert das mit jeder App auf jedem Betriebssystem und mit jedem Mail-Provider. Und mit einer Mail-Adresse wie roland@pareto.space können sie sogar jederzeit umziehen, egal wohin. Cool, das ist state of the art! Aber warum funktioniert das z.B. bei Chat nicht, gibt es da kein Protokoll? Doch, es heißt IRC (Internet Relay Chat → merken sie sich den Namen), aber es wird so gut wie nicht verwendet. Die Gründe dafür sind nicht technischer Natur, vielmehr wurden mit Apps wie Facebook, Twitter, WhatsApp, Telegram, Instagram, TikTok u.a. bewusst Inkompatibilitäten und Nutzerabhängigkeiten geschaffen um Profite zu maximieren.
Warum Nostr?
Da das Standard-Protokoll nicht genutzt wird, hat jede App ihr eigenes, und wir brauchen eine handvoll Apps um uns mit allen Bekannten auszutauschen. Eine Mobilfunknummer ist Voraussetzung für jedes Konto, damit können die App-Hersteller die Nutzer umfassend tracken und mit dem Verkauf der Informationen bis zu 30 USD je Konto und Monat verdienen. Der Nutzer ist nicht mehr Kunde, er ist das Produkt! Der Werbe-SPAM ist noch das kleinste Problem bei diesem Geschäftsmodell. Server mit Millionen von Nutzerdaten sind ein “honey pot”, dementsprechend oft werden sie gehackt und die Zugangsdaten verkauft. 2024 wurde auch der Twitter-Account vom damaligen Präsidenten Joe Biden gehackt, niemand wusste mehr wer die Nachrichten verfasst hat (vorher auch nicht), d.h. die Authentizität der Inhalte ist bei keinem dieser Anbieter gewährleistet. Im selben Jahr wurde der Telegram-Gründer in Frankreich in Beugehaft genommen, weil er sich geweigert hatte Hintertüren in seine Software einzubauen. Nun kann zum Schutz "unserer Demokratie” praktisch jeder mitlesen, was sie mit wem an Informationen austauschen, z.B. darüber welches Shampoo bestimmte Politiker verwenden.
Und wer tatsächlich glaubt er könne Meinungsfreiheit auf sozialen Medien praktizieren, findet sich schnell in der Situation von Donald Trump wieder (seinerzeit amtierender Präsident), dem sein Twitter-Konto 2021 abgeschaltet wurde (Cancel-Culture). Die Nutzerdaten, also ihr Profil, ihre Kontakte, Dokumente, Bilder, Videos und Audiofiles - gehören ihnen ohnehin nicht mehr sondern sind Eigentum des Plattform-Betreibers; lesen sie sich mal die AGB's durch. Aber nein, keine gute Idee, das sind hunderte Seiten und sie werden permanent geändert. Alle nutzen also Apps, deren Technik sie nicht verstehen, deren Regeln sie nicht kennen, wo sie keine Rechte haben und die ihnen die Resultate ihres Handelns stehlen. Was würde wohl der Fünfjährige sagen, wenn ihm seine ältere Schwester anbieten würde, alle seine Spielzeuge zu “verwalten” und dann auszuhändigen wenn er brav ist? “Du spinnst wohl”, und damit beweist der Knirps mehr Vernunft als die Mehrzahl der Erwachsenen. \ \ Resümee: keine Standards, keine Daten, keine Rechte = keine Zukunft!
\ Wie funktioniert Nostr?
Die Entwickler von Nostr haben erkannt dass sich das Server-Client-Konzept in ein Master-Slave-Konzept verwandelt hatte. Der Master ist ein Synonym für Zentralisierung und wird zum “single point of failure”, der zwangsläufig Systeme dysfunktional macht. In einem verteilten Peer2Peer-System gibt es keine Master mehr sondern nur gleichberechtigte Knoten (Relays), auf denen die Informationen gespeichert werden. Indem man Informationen auf mehreren Relays redundant speichert, ist das System in jeglicher Hinsicht resilienter. Nicht nur die Natur verwendet dieses Prinzip seit Jahrmillionen erfolgreich, auch das Internet wurde so konzipiert (das ARPAnet wurde vom US-Militär für den Einsatz in Kriegsfällen unter massiven Störungen entwickelt). Alle Nostr-Daten liegen auf Relays und der Nutzer kann wählen zwischen öffentlichen (zumeist kostenlosen) und privaten Relays, z.B. für geschlossene Gruppen oder zum Zwecke von Daten-Archivierung. Da Dokumente auf mehreren Relays gespeichert sind, werden statt URL's (Locator) eindeutige Dokumentnamen (URI's = Identifier) verwendet, broken Links sind damit Vergangenheit und Löschungen / Verluste ebenfalls.\ \ Jedes Dokument (Event genannt) wird vom Besitzer signiert, es ist damit authentisch und fälschungssicher und kann nur vom Ersteller gelöscht werden. Dafür wird ein Schlüsselpaar verwendet bestehend aus privatem (nsec) und öffentlichem Schlüssel (npub) wie aus der Mailverschlüsselung (PGP) bekannt. Das repräsentiert eine Nostr-Identität, die um Bild, Namen, Bio und eine lesbare Nostr-Adresse ergänzt werden kann (z.B. roland@pareto.space ), mehr braucht es nicht um alle Ressourcen des Nostr-Ökosystems zu nutzen. Und das besteht inzwischen aus über hundert Apps mit unterschiedlichen Fokussierungen, z.B. für persönliche verschlüsselte Nachrichten (DM → OxChat), Kurznachrichten (Damus, Primal), Blogbeiträge (Pareto), Meetups (Joinstr), Gruppen (Groups), Bilder (Olas), Videos (Amethyst), Audio-Chat (Nostr Nests), Audio-Streams (Tunestr), Video-Streams (Zap.Stream), Marktplätze (Shopstr) u.v.a.m. Die Anmeldung erfolgt mit einem Klick (single sign on) und den Apps stehen ALLE Nutzerdaten zur Verfügung (Profil, Daten, Kontakte, Social Graph → Follower, Bookmarks, Comments, etc.), im Gegensatz zu den fragmentierten Datensilos der Gegenwart.\ \ Resümee: ein offener Standard, alle Daten, alle Rechte = große Zukunft!
\ Warum ist Nostr die Zukunft des Internet?
“Baue Dein Haus nicht auf einem fremden Grundstück” gilt auch im Internet - für alle App-Entwickler, Künstler, Journalisten und Nutzer, denn auch ihre Daten sind werthaltig. Nostr garantiert das Eigentum an den Daten, und überwindet ihre Fragmentierung. Weder die Nutzung noch die kreativen Freiheiten werden durch maßlose Lizenz- und Nutzungsbedingungen eingeschränkt. Aus passiven Nutzern werden durch Interaktion aktive Teilnehmer, Co-Creatoren in einer Sharing-Ökonomie (Value4Value). OpenSource schafft endlich wieder Vertrauen in die Software und ihre Anbieter. Offene Standards ermöglichen den Entwicklern mehr Kooperation und schnellere Entwicklung, für die Anwender garantieren sie Wahlfreiheit. Womit wir letztmalig zu unserem Fünfjährigen zurückkehren. Kinder lieben Lego über alles, am meisten die Maxi-Box “Classic”, weil sie damit ihre Phantasie im Kombinieren voll ausleben können. Erwachsene schenken ihnen dann die viel zu teuren Themenpakete, mit denen man nur eine Lösung nach Anleitung bauen kann. “Was stimmt nur mit meinen Eltern nicht, wann sind die denn falsch abgebogen?" fragt sich der Nachwuchs zu Recht. Das Image lässt sich aber wieder aufpolieren, wenn sie ihren Kindern Nostr zeigen, denn die Vorteile verstehen sogar Fünfjährige.
\ Das neue Internet ist dezentral. Das neue Internet ist selbstbestimmt. Nostr ist das neue Internet.
https://nostr.net/ \ https://start.njump.me/
Hier das Interview zum Thema mit Radio Berliner Morgenröte
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@ 9e69e420:d12360c2
2025-01-19 04:48:31A new report from the National Sports Shooting Foundation (NSSF) shows that civilian firearm possession exceeded 490 million in 2022. The total from 1990 to 2022 is estimated at 491.3 million firearms. In 2022, over ten million firearms were domestically produced, leading to a total of 16,045,911 firearms available in the U.S. market.
Of these, 9,873,136 were handguns, 4,195,192 were rifles, and 1,977,583 were shotguns. Handgun availability aligns with the concealed carry and self-defense market, as all states allow concealed carry, with 29 having constitutional carry laws.
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@ f9cf4e94:96abc355
2025-01-18 06:09:50Para esse exemplo iremos usar: | Nome | Imagem | Descrição | | --------------- | ------------------------------------------------------------ | ------------------------------------------------------------ | | Raspberry PI B+ |
| Cortex-A53 (ARMv8) 64-bit a 1.4GHz e 1 GB de SDRAM LPDDR2, | | Pen drive |
| 16Gb |
Recomendo que use o Ubuntu Server para essa instalação. Você pode baixar o Ubuntu para Raspberry Pi aqui. O passo a passo para a instalação do Ubuntu no Raspberry Pi está disponível aqui. Não instale um desktop (como xubuntu, lubuntu, xfce, etc.).
Passo 1: Atualizar o Sistema 🖥️
Primeiro, atualize seu sistema e instale o Tor:
bash apt update apt install tor
Passo 2: Criar o Arquivo de Serviço
nrs.service
🔧Crie o arquivo de serviço que vai gerenciar o servidor Nostr. Você pode fazer isso com o seguinte conteúdo:
```unit [Unit] Description=Nostr Relay Server Service After=network.target
[Service] Type=simple WorkingDirectory=/opt/nrs ExecStart=/opt/nrs/nrs-arm64 Restart=on-failure
[Install] WantedBy=multi-user.target ```
Passo 3: Baixar o Binário do Nostr 🚀
Baixe o binário mais recente do Nostr aqui no GitHub.
Passo 4: Criar as Pastas Necessárias 📂
Agora, crie as pastas para o aplicativo e o pendrive:
bash mkdir -p /opt/nrs /mnt/edriver
Passo 5: Listar os Dispositivos Conectados 🔌
Para saber qual dispositivo você vai usar, liste todos os dispositivos conectados:
bash lsblk
Passo 6: Formatando o Pendrive 💾
Escolha o pendrive correto (por exemplo,
/dev/sda
) e formate-o:bash mkfs.vfat /dev/sda
Passo 7: Montar o Pendrive 💻
Monte o pendrive na pasta
/mnt/edriver
:bash mount /dev/sda /mnt/edriver
Passo 8: Verificar UUID dos Dispositivos 📋
Para garantir que o sistema monte o pendrive automaticamente, liste os UUID dos dispositivos conectados:
bash blkid
Passo 9: Alterar o
fstab
para Montar o Pendrive Automáticamente 📝Abra o arquivo
/etc/fstab
e adicione uma linha para o pendrive, com o UUID que você obteve no passo anterior. A linha deve ficar assim:fstab UUID=9c9008f8-f852 /mnt/edriver vfat defaults 0 0
Passo 10: Copiar o Binário para a Pasta Correta 📥
Agora, copie o binário baixado para a pasta
/opt/nrs
:bash cp nrs-arm64 /opt/nrs
Passo 11: Criar o Arquivo de Configuração 🛠️
Crie o arquivo de configuração com o seguinte conteúdo e salve-o em
/opt/nrs/config.yaml
:yaml app_env: production info: name: Nostr Relay Server description: Nostr Relay Server pub_key: "" contact: "" url: http://localhost:3334 icon: https://external-content.duckduckgo.com/iu/?u= https://public.bnbstatic.com/image/cms/crawler/COINCU_NEWS/image-495-1024x569.png base_path: /mnt/edriver negentropy: true
Passo 12: Copiar o Serviço para o Diretório de Systemd ⚙️
Agora, copie o arquivo
nrs.service
para o diretório/etc/systemd/system/
:bash cp nrs.service /etc/systemd/system/
Recarregue os serviços e inicie o serviço
nrs
:bash systemctl daemon-reload systemctl enable --now nrs.service
Passo 13: Configurar o Tor 🌐
Abra o arquivo de configuração do Tor
/var/lib/tor/torrc
e adicione a seguinte linha:torrc HiddenServiceDir /var/lib/tor/nostr_server/ HiddenServicePort 80 127.0.0.1:3334
Passo 14: Habilitar e Iniciar o Tor 🧅
Agora, ative e inicie o serviço Tor:
bash systemctl enable --now tor.service
O Tor irá gerar um endereço
.onion
para o seu servidor Nostr. Você pode encontrá-lo no arquivo/var/lib/tor/nostr_server/hostname
.
Observações ⚠️
- Com essa configuração, os dados serão salvos no pendrive, enquanto o binário ficará no cartão SD do Raspberry Pi.
- O endereço
.onion
do seu servidor Nostr será algo como:ws://y3t5t5wgwjif<exemplo>h42zy7ih6iwbyd.onion
.
Agora, seu servidor Nostr deve estar configurado e funcionando com Tor! 🥳
Se este artigo e as informações aqui contidas forem úteis para você, convidamos a considerar uma doação ao autor como forma de reconhecimento e incentivo à produção de novos conteúdos.
-
@ 6389be64:ef439d32
2025-01-16 15:44:06Black Locust can grow up to 170 ft tall
Grows 3-4 ft. per year
Native to North America
Cold hardy in zones 3 to 8
Firewood
- BLT wood, on a pound for pound basis is roughly half that of Anthracite Coal
- Since its growth is fast, firewood can be plentiful
Timber
- Rot resistant due to a naturally produced robinin in the wood
- 100 year life span in full soil contact! (better than cedar performance)
- Fence posts
- Outdoor furniture
- Outdoor decking
- Sustainable due to its fast growth and spread
- Can be coppiced (cut to the ground)
- Can be pollarded (cut above ground)
- Its dense wood makes durable tool handles, boxes (tool), and furniture
- The wood is tougher than hickory, which is tougher than hard maple, which is tougher than oak.
- A very low rate of expansion and contraction
- Hardwood flooring
- The highest tensile beam strength of any American tree
- The wood is beautiful
Legume
- Nitrogen fixer
- Fixes the same amount of nitrogen per acre as is needed for 200-bushel/acre corn
- Black walnuts inter-planted with locust as “nurse” trees were shown to rapidly increase their growth [[Clark, Paul M., and Robert D. Williams. (1978) Black walnut growth increased when interplanted with nitrogen-fixing shrubs and trees. Proceedings of the Indiana Academy of Science, vol. 88, pp. 88-91.]]
Bees
- The edible flower clusters are also a top food source for honey bees
Shade Provider
- Its light, airy overstory provides dappled shade
- Planted on the west side of a garden it provides relief during the hottest part of the day
- (nitrogen provider)
- Planted on the west side of a house, its quick growth soon shades that side from the sun
Wind-break
- Fast growth plus it's feathery foliage reduces wind for animals, crops, and shelters
Fodder
- Over 20% crude protein
- 4.1 kcal/g of energy
- Baertsche, S.R, M.T. Yokoyama, and J.W. Hanover (1986) Short rotation, hardwood tree biomass as potential ruminant feed-chemical composition, nylon bag ruminal degradation and ensilement of selected species. J. Animal Sci. 63 2028-2043
-
@ 78b3c1ed:5033eea9
2025-04-29 04:04:19Umbrel Core-lightning(以下CLNと略す)を運用するにあたり役に立ちそうなノウハウやメモを随時投稿します。
・configファイルを用意する Umbrelのアプリとして必要な設定はdocker-compose.ymlで指定されている。 それ以外の設定をしたい場合configファイルに入れると便利。 configファイルの置き場所は /home/umbrel/umbrel/app-data/core-lightning/data/lightningd ここにtouch configとでもやってファイルをつくる。
cd /home/umbrel/umbrel/app-data/core-lightning/data/lightningd touch config
以下内容をひな型として使ってみてください。 行頭に#があるとコメント行になります。つまり.iniフォーマット。 /home/umbrel/umbrel/app-data/core-lightning/data/lightningd/config ```[General options]
[Bitcoin control options]
[Lightning daemon options]
[Lightning node customization options]
[Lightning channel and HTLC options]
[Payment control options]
[Networking options]
[Lightning Plugins]
[Experimental Options]
``` configに設定できる内容は以下を参照 https://lightning.readthedocs.io/lightningd-config.5.html セクションを意味する[]があるけれどもこれは私(tanakei)が意図的に見やすく区別しやすくするために付けただけ。これら行の#は外さない。
・configの設定をCLNに反映させる appスクリプトでCLNを再起動すると反映することができる。 configを書き換えただけでは反映されない。
cd /home/umbrel/umbrel/scripts ./app restart core-lightning
・ログをファイルに出力させる
以下の場所でtouch log.txtとしてlog.txtファイルを作る。 /home/umbrel/umbrel/app-data/core-lightning/data/lightningd
cd /home/umbrel/umbrel/app-data/core-lightning/data/lightningd touch log.txt
次にconfigの[Lightning daemon options]セクションにlog-fileを追加する。 ```[Lightning daemon options]
log-file=/data/.lightning/log.txt ``` ※Dockerによって/home/umbrel/umbrel/app-data/core-lightning/data/lightningd は /data/.lightning として使われている。
・addrとbind-addrの違い どちらも着信用のインターフェースとポートの設定。addrは指定したホストIPアドレス:ポート番号をノードURIに含めて公開する(node_announcementのuris)。bind-addrは公開しない。
・実験的機能のLN Offerを有効にする configの[Experimental Options]セクションに以下を追加する。 ```
[Experimental Options]
experimental-onion-messages experimental-offers ``` ※ v24.08でexperimental-onion-messageは廃止されデフォルト有効であり、上記設定の追加は不要になりました。 ※ v21.11.1 では experimental-offersは廃止されデフォルト有効であり、上記設定の追加は不要になりました。 もう実験扱いじゃなくなったのね...
・完全にTorでの発信オンリーにする UmbrelはなぜかCLNの発信をClearnetとTorのハイブリッドを許している。それは always-use-proxy=true の設定がないから。(LNDは発着信Torのみなのに) なのでこの設定をconfigに追加してCLNも発着進Torのみにする。 ```
[Networking options]
always-use-proxy=true ```
・任意のニーモニックからhsm_secretを作る CLNのhsm_secretはLNDのwallet.dbのようなもの。ノードで使う様々な鍵のマスター鍵となる。Umbrel CLNはこのhsm_secretファイルを自動生成したものを使い、これをバックアップするためのニーモニックを表示するとかそういう機能はない。自分で作って控えてあるニーモニックでhsm_secretを作ってしまえばこのファイルが壊れてもオンチェーン資金は復旧はできる。
1.CLNインストール後、dockerコンテナに入る
docker exec -it core-lightning_lightningd_1 bash
2.lightning-hsmtoolコマンドを使って独自hsm_secretを作る ``` cd data/.lightning/bitcoin lightning-hsmtool generatehsm my-hsm_secret・上記コマンドを実行するとニーモニックの言語、ニーモニック、パスフレーズの入力を催促される。 Select your language: 0) English (en) 1) Spanish (es) 2) French (fr) 3) Italian (it) 4) Japanese (jp) 5) Chinese Simplified (zhs) 6) Chinese Traditional (zht) Select [0-7]: 0 ※定番の英単語なら0を入力 Introduce your BIP39 word list separated by space (at least 12 words): <ニーモニックを入力する> Warning: remember that different passphrases yield different bitcoin wallets. If left empty, no password is used (echo is disabled). Enter your passphrase: <パスフレーズを入力する> ※パスフレーズ不要ならそのままエンターキーを押す。 New hsm_secret file created at my-hsm_secret Use the
encrypt
command to encrypt the BIP32 seed if neededコンテナから抜ける exit
3.appスクリプトでCLNを止めて、独自hsm_secret以外を削除 ※【重要】いままで使っていたhsm_secretを削除する。もしチャネル残高、ウォレット残高があるならチャネルを閉じて資金を退避すること。自己責任!
cd ~/umbrel/scripts/ ./app stop core-lightningcd ~/umbrel/app-data/core-lightning/data/lightningd/bitcoin rm gossip_store hsm_secret lightningd.sqlite3 lightning-rpc mv my-hsm_secret hsm_secret
4.appスクリプトでCLNを再開する
cd ~/umbrel/scripts/ ./app start core-lightning ```【補記】 hsm_secret作成につかうニーモニックはBIP39で、LNDのAezeedと違って自分が作成されたブロック高さというものを含んでいない。新規でなくて復元して使う場合は作成されたブロック高さからブロックチェーンをrescanする必要がある。 configの1行目にrescanオプションを付けてCLNをリスタートする。 ``` // 特定のブロック高さを指定する場合はマイナス記号をつける rescan=-756000
// 現在のブロック高さから指定ブロック分さかのぼった高さからrescanする rescan=10000 ※現在の高さが760,000なら10000指定だと750,000からrescan ```
・clnrestについて core-lightningでREST APIを利用したい場合、別途c-lightning-restを用意する必要があった。v23.8から標準でclnrestというプラグインがついてくる。pythonで書かれていて、ソースからビルドした場合はビルド完了後にpip installでインストールする。elementsproject/lightningdのDockerイメージではインストール済みになっている。 (v25.02からgithubからバイナリをダウンロードしてきた場合はpip install不要になったようだ) このclnrestを使うにはcreaterunesコマンドでruneというLNDのマカロンのようなものを作成する必要がある。アプリ側でこのruneとREST APIを叩いてcore-lightningへアクセスすることになる。 自分が良く使っているLNbitsやスマホアプリZeus walletはclnrestを使う。まだclnrestに対応していないアプリもあるので留意されたし。
・Emergency recoverについて LNDのSCBのようなもの。ファイル名はemergency.recover チャネルを開くと更新される。 hsm_secretとこのファイルだけを置いてCLNを開始すると自動でこのファイルから強制クローズするための情報が読み出されてDLPで相手から強制クローズするような仕組み。この機能はv0.12から使える。
動作確認してみた所、LNDのSCBに比べるとかなり使いづらい。 1. CLNがTor発信だとチャネルパートナーと接続できない。 Clearnet発信できても相手がTorのみノードならTor発信せざるを得ない。 相手と通信できなければ資金回収できない。 2. 相手がLNDだとなぜか強制クローズされない。相手がCLNならできる。
つまり、自分と相手がClearnetノードでかつ相手もCLNならば Emergency recoverで強制クローズして資金回収できる。こんな条件の厳しい復旧方法がマジで役に立つのか?
v0.11以降ならばLNDのchannel.dbに相当するlightningd.sqlite3をプライマリ・セカンダリDBと冗長化できるので、セカンダリDBをNFSで保存すればUmbrelのストレージが壊れてもセカンダリDBで復旧できる。そのためemergerncy.recoverを使う必要がないと思われる。
・LN offer(BOLT#12)ついて 使いたいなら 1.publicチャネルを開く publicチャネルを開けばチャネルとノードの情報(channel_announcement, node_announcement)が他ノードに伝わる。送金したい相手がこの情報を元に経路探索する。 2.その後しばらく待つ CLNノードを立てたばかりだと経路探索するに十分なチャネルとノードの情報が揃ってない。せめて1日は待つ。
LNURLの場合インボイスをhttpsで取得するが、OfferはLN経由で取得する。そのためにチャネルとノードの情報が必要。privateチャネルばかりのノードはチャネル情報もそうだがノード情報も出さない。 Offerで使えるBlind pathという機能なら中間ノードIDを宛先ノードとすることが可能で、これならチャネルとノード情報を公開しなくても受けとれるのだがCLNは対応してない模様(2025年1月現在) CLNでOfferで受け取るにはチャネルとノード情報を公開する必要がある。そのためpublicチャネルを開く。公開されていれば良いのでTorでもOK。クリアネットで待ち受けは必須ではない。
・hsm_sercretとニーモニック lightning-hsmtoolを使うとニーモニックからhsm_secretを作れる。ニーモニックからシードを作ると64バイト。これはニーモニックおよびソルトにパスフレーズをPBKDF2(HMAC-SHA512を2048回)にかけると512ビット(64バイト)のシードができる。しかしhsm_secretは32バイト。CLNでは64バイトの最初の32バイトをhsm_secretとして利用しているみたい。 このhsm_secretにHMAC-SHA512をかけて512ビットとした値がウォレットのマスター鍵となる。なのでhsm_secret自体がBIP-32でいうマスターシードそのものではない。 sparrow walletにCLNのウォレットを復元したい場合は lightning-hsmtool dumponchaindescriptors --show-secrets
とやってディスクリプターウォレットを出力。出力内容にマスター鍵(xprv~)があるので、これをインポートする。導出パス設定はm/0とする。sparrowが残りを補完してm/0/0/0, m/0/0/1とやってくれる。 <おまけ> configファイルのサンプル。Umbrelを使わない場合は以下のサンプルが役に立つはず。上記のelementsproject/lightningdならば/root/.lightningに任意のディレクトリをマウントしてそのディレクトリにconfigを置く。 ```
[General options]
不可逆なDBアップグレードを許可しない
database-upgrade=false
[Bitcoin control options]
network=bitcoin bitcoin-rpcconnect=
bitcoin-rpcport= bitcoin-rpcuser= bitcoin-rpcpassword= [Lightning daemon options]
postgresを使う場合
wallet=postgres://USER:PASSWORD@HOST:PORT/DB_NAME
bookkeeper-db=postgres://USER:PASSWORD@HOST:PORT/DB_NAME
sqlite3を使う場合。デフォルトはこちらで以下の設定が無くても~/.lightning/bitconに自動で作成される。
wallet=sqlite3:///home/USERNAME/.lightning/bitcoin/lightningd.sqlite3
bookkeeper-db=sqlite3:///home/USERNAME/.lightning/bitcoin/accounts.sqlite3
ログファイルは自動で作成されない
log-file=/home/USERNAME/.lightning/lightningd-log
log-level=debug
[Lightning node customization options]
alias=
rgb= 固定手数料。ミリサトシで指定。
fee-base=1000000
変動手数料。ppmで指定。
fee-per-satoshi=0
最小チャネルキャパシティ(sats)
min-capacity-sat=100000
HTLC最少額。ミリサトシで指定。
htlc-minimum-msat=1000
[Lightning channel and HTLC options]
large-channels # v23.11よりデフォルトでラージチャネルが有効。
チャネル開設まで6承認
funding-confirms=6
着信できるHTLCの数。開いたら変更できない。1~483 (デフォルトは 30) の範囲にする必要があります
max-concurrent-htlcs=INTEGER
アンカーチャネルを閉じるためにウォレットに保持しておく資金。デフォルトは 25,000sat
チャネルを"忘れる(forget)"するまではリザーブされる模様。forgetはチャネル閉じてから100ブロック後
min-emergency-msat=10000000
[Cleanup control options]
autoclean-cycle=3600 autoclean-succeededforwards-age=0 autoclean-failedforwards-age=0 autoclean-succeededpays-age=0 autoclean-failedpays-age=0 autoclean-paidinvoices-age=0 autoclean-expiredinvoices-age=0
[Payment control options]
disable-mpp
[Networking options]
bind-addrだとアナウンスしない。
bind-addr=0.0.0.0:9375
tor
proxy=
: always-use-proxy=true Torの制御ポート。addr=statictor だとhidden serviceをノードURIとして公開する。
addr=statictor:
: tor-service-password= experimental-websocket-portは廃止された。bind-addr=ws:が代替。
bind-addr=ws:
:2106 clnrestプラグイン, REST API
clnrest-host=0.0.0.0 clnrest-port=3010 clnrest-protocol=http
v24.11よりgrpcはデフォルト有効
grpc-host=0.0.0.0 grpc-port=9736
[Lightning Plugins]
[Experimental Options]
experimental-onion-messages # v24.08で廃止。デフォルト有効
experimental-offers # v24.11.1で廃止。デフォルト有効
流動性広告からチャネルを開くときにexperimental-dual-fundが必要らしい。
experimental-dual-fund
experimental-splicing
experimental-peer-storage
```
-
@ 6389be64:ef439d32
2025-01-14 01:31:12Bitcoin is more than money, more than an asset, and more than a store of value. Bitcoin is a Prime Mover, an enabler and it ignites imaginations. It certainly fueled an idea in my mind. The idea integrates sensors, computational prowess, actuated machinery, power conversion, and electronic communications to form an autonomous, machined creature roaming forests and harvesting the most widespread and least energy-dense fuel source available. I call it the Forest Walker and it eats wood, and mines Bitcoin.
I know what you're thinking. Why not just put Bitcoin mining rigs where they belong: in a hosted facility sporting electricity from energy-dense fuels like natural gas, climate-controlled with excellent data piping in and out? Why go to all the trouble building a robot that digests wood creating flammable gasses fueling an engine to run a generator powering Bitcoin miners? It's all about synergy.
Bitcoin mining enables the realization of multiple, seemingly unrelated, yet useful activities. Activities considered un-profitable if not for Bitcoin as the Prime Mover. This is much more than simply mining the greatest asset ever conceived by humankind. It’s about the power of synergy, which Bitcoin plays only one of many roles. The synergy created by this system can stabilize forests' fire ecology while generating multiple income streams. That’s the realistic goal here and requires a brief history of American Forest management before continuing.
Smokey The Bear
In 1944, the Smokey Bear Wildfire Prevention Campaign began in the United States. “Only YOU can prevent forest fires” remains the refrain of the Ad Council’s longest running campaign. The Ad Council is a U.S. non-profit set up by the American Association of Advertising Agencies and the Association of National Advertisers in 1942. It would seem that the U.S. Department of the Interior was concerned about pesky forest fires and wanted them to stop. So, alongside a national policy of extreme fire suppression they enlisted the entire U.S. population to get onboard via the Ad Council and it worked. Forest fires were almost obliterated and everyone was happy, right? Wrong.
Smokey is a fantastically successful bear so forest fires became so few for so long that the fuel load - dead wood - in forests has become very heavy. So heavy that when a fire happens (and they always happen) it destroys everything in its path because the more fuel there is the hotter that fire becomes. Trees, bushes, shrubs, and all other plant life cannot escape destruction (not to mention homes and businesses). The soil microbiology doesn’t escape either as it is burned away even in deeper soils. To add insult to injury, hydrophobic waxy residues condense on the soil surface, forcing water to travel over the ground rather than through it eroding forest soils. Good job, Smokey. Well done, Sir!
Most terrestrial ecologies are “fire ecologies”. Fire is a part of these systems’ fuel load and pest management. Before we pretended to “manage” millions of acres of forest, fires raged over the world, rarely damaging forests. The fuel load was always too light to generate fires hot enough to moonscape mountainsides. Fires simply burned off the minor amounts of fuel accumulated since the fire before. The lighter heat, smoke, and other combustion gasses suppressed pests, keeping them in check and the smoke condensed into a plant growth accelerant called wood vinegar, not a waxy cap on the soil. These fires also cleared out weak undergrowth, cycled minerals, and thinned the forest canopy, allowing sunlight to penetrate to the forest floor. Without a fire’s heat, many pine tree species can’t sow their seed. The heat is required to open the cones (the seed bearing structure) of Spruce, Cypress, Sequoia, Jack Pine, Lodgepole Pine and many more. Without fire forests can’t have babies. The idea was to protect the forests, and it isn't working.
So, in a world of fire, what does an ally look like and what does it do?
Meet The Forest Walker
For the Forest Walker to work as a mobile, autonomous unit, a solid platform that can carry several hundred pounds is required. It so happens this chassis already exists but shelved.
Introducing the Legged Squad Support System (LS3). A joint project between Boston Dynamics, DARPA, and the United States Marine Corps, the quadrupedal robot is the size of a cow, can carry 400 pounds (180 kg) of equipment, negotiate challenging terrain, and operate for 24 hours before needing to refuel. Yes, it had an engine. Abandoned in 2015, the thing was too noisy for military deployment and maintenance "under fire" is never a high-quality idea. However, we can rebuild it to act as a platform for the Forest Walker; albeit with serious alterations. It would need to be bigger, probably. Carry more weight? Definitely. Maybe replace structural metal with carbon fiber and redesign much as 3D printable parts for more effective maintenance.
The original system has a top operational speed of 8 miles per hour. For our purposes, it only needs to move about as fast as a grazing ruminant. Without the hammering vibrations of galloping into battle, shocks of exploding mortars, and drunken soldiers playing "Wrangler of Steel Machines", time between failures should be much longer and the overall energy consumption much lower. The LS3 is a solid platform to build upon. Now it just needs to be pulled out of the mothballs, and completely refitted with outboard equipment.
The Small Branch Chipper
When I say “Forest fuel load” I mean the dead, carbon containing litter on the forest floor. Duff (leaves), fine-woody debris (small branches), and coarse woody debris (logs) are the fuel that feeds forest fires. Walk through any forest in the United States today and you will see quite a lot of these materials. Too much, as I have described. Some of these fuel loads can be 8 tons per acre in pine and hardwood forests and up to 16 tons per acre at active logging sites. That’s some big wood and the more that collects, the more combustible danger to the forest it represents. It also provides a technically unlimited fuel supply for the Forest Walker system.
The problem is that this detritus has to be chewed into pieces that are easily ingestible by the system for the gasification process (we’ll get to that step in a minute). What we need is a wood chipper attached to the chassis (the LS3); its “mouth”.
A small wood chipper handling material up to 2.5 - 3.0 inches (6.3 - 7.6 cm) in diameter would eliminate a substantial amount of fuel. There is no reason for Forest Walker to remove fallen trees. It wouldn’t have to in order to make a real difference. It need only identify appropriately sized branches and grab them. Once loaded into the chipper’s intake hopper for further processing, the beast can immediately look for more “food”. This is essentially kindling that would help ignite larger logs. If it’s all consumed by Forest Walker, then it’s not present to promote an aggravated conflagration.
I have glossed over an obvious question: How does Forest Walker see and identify branches and such? LiDaR (Light Detection and Ranging) attached to Forest Walker images the local area and feed those data to onboard computers for processing. Maybe AI plays a role. Maybe simple machine learning can do the trick. One thing is for certain: being able to identify a stick and cause robotic appendages to pick it up is not impossible.
Great! We now have a quadrupedal robot autonomously identifying and “eating” dead branches and other light, combustible materials. Whilst strolling through the forest, depleting future fires of combustibles, Forest Walker has already performed a major function of this system: making the forest safer. It's time to convert this low-density fuel into a high-density fuel Forest Walker can leverage. Enter the gasification process.
The Gassifier
The gasifier is the heart of the entire system; it’s where low-density fuel becomes the high-density fuel that powers the entire system. Biochar and wood vinegar are process wastes and I’ll discuss why both are powerful soil amendments in a moment, but first, what’s gasification?
Reacting shredded carbonaceous material at high temperatures in a low or no oxygen environment converts the biomass into biochar, wood vinegar, heat, and Synthesis Gas (Syngas). Syngas consists primarily of hydrogen, carbon monoxide, and methane. All of which are extremely useful fuels in a gaseous state. Part of this gas is used to heat the input biomass and keep the reaction temperature constant while the internal combustion engine that drives the generator to produce electrical power consumes the rest.
Critically, this gasification process is “continuous feed”. Forest Walker must intake biomass from the chipper, process it to fuel, and dump the waste (CO2, heat, biochar, and wood vinegar) continuously. It cannot stop. Everything about this system depends upon this continual grazing, digestion, and excretion of wastes just as a ruminal does. And, like a ruminant, all waste products enhance the local environment.
When I first heard of gasification, I didn’t believe that it was real. Running an electric generator from burning wood seemed more akin to “conspiracy fantasy” than science. Not only is gasification real, it’s ancient technology. A man named Dean Clayton first started experiments on gasification in 1699 and in 1901 gasification was used to power a vehicle. By the end of World War II, there were 500,000 Syngas powered vehicles in Germany alone because of fossil fuel rationing during the war. The global gasification market was $480 billion in 2022 and projected to be as much as $700 billion by 2030 (Vantage Market Research). Gasification technology is the best choice to power the Forest Walker because it’s self-contained and we want its waste products.
Biochar: The Waste
Biochar (AKA agricultural charcoal) is fairly simple: it’s almost pure, solid carbon that resembles charcoal. Its porous nature packs large surface areas into small, 3 dimensional nuggets. Devoid of most other chemistry, like hydrocarbons (methane) and ash (minerals), biochar is extremely lightweight. Do not confuse it with the charcoal you buy for your grill. Biochar doesn’t make good grilling charcoal because it would burn too rapidly as it does not contain the multitude of flammable components that charcoal does. Biochar has several other good use cases. Water filtration, water retention, nutrient retention, providing habitat for microscopic soil organisms, and carbon sequestration are the main ones that we are concerned with here.
Carbon has an amazing ability to adsorb (substances stick to and accumulate on the surface of an object) manifold chemistries. Water, nutrients, and pollutants tightly bind to carbon in this format. So, biochar makes a respectable filter and acts as a “battery” of water and nutrients in soils. Biochar adsorbs and holds on to seven times its weight in water. Soil containing biochar is more drought resilient than soil without it. Adsorbed nutrients, tightly sequestered alongside water, get released only as plants need them. Plants must excrete protons (H+) from their roots to disgorge water or positively charged nutrients from the biochar's surface; it's an active process.
Biochar’s surface area (where adsorption happens) can be 500 square meters per gram or more. That is 10% larger than an official NBA basketball court for every gram of biochar. Biochar’s abundant surface area builds protective habitats for soil microbes like fungi and bacteria and many are critical for the health and productivity of the soil itself.
The “carbon sequestration” component of biochar comes into play where “carbon credits” are concerned. There is a financial market for carbon. Not leveraging that market for revenue is foolish. I am climate agnostic. All I care about is that once solid carbon is inside the soil, it will stay there for thousands of years, imparting drought resiliency, fertility collection, nutrient buffering, and release for that time span. I simply want as much solid carbon in the soil because of the undeniably positive effects it has, regardless of any climactic considerations.
Wood Vinegar: More Waste
Another by-product of the gasification process is wood vinegar (Pyroligneous acid). If you have ever seen Liquid Smoke in the grocery store, then you have seen wood vinegar. Principally composed of acetic acid, acetone, and methanol wood vinegar also contains ~200 other organic compounds. It would seem intuitive that condensed, liquefied wood smoke would at least be bad for the health of all living things if not downright carcinogenic. The counter intuition wins the day, however. Wood vinegar has been used by humans for a very long time to promote digestion, bowel, and liver health; combat diarrhea and vomiting; calm peptic ulcers and regulate cholesterol levels; and a host of other benefits.
For centuries humans have annually burned off hundreds of thousands of square miles of pasture, grassland, forest, and every other conceivable terrestrial ecosystem. Why is this done? After every burn, one thing becomes obvious: the almost supernatural growth these ecosystems exhibit after the burn. How? Wood vinegar is a component of this growth. Even in open burns, smoke condenses and infiltrates the soil. That is when wood vinegar shows its quality.
This stuff beefs up not only general plant growth but seed germination as well and possesses many other qualities that are beneficial to plants. It’s a pesticide, fungicide, promotes beneficial soil microorganisms, enhances nutrient uptake, and imparts disease resistance. I am barely touching a long list of attributes here, but you want wood vinegar in your soil (alongside biochar because it adsorbs wood vinegar as well).
The Internal Combustion Engine
Conversion of grazed forage to chemical, then mechanical, and then electrical energy completes the cycle. The ICE (Internal Combustion Engine) converts the gaseous fuel output from the gasifier to mechanical energy, heat, water vapor, and CO2. It’s the mechanical energy of a rotating drive shaft that we want. That rotation drives the electric generator, which is the heartbeat we need to bring this monster to life. Luckily for us, combined internal combustion engine and generator packages are ubiquitous, delivering a defined energy output given a constant fuel input. It’s the simplest part of the system.
The obvious question here is whether the amount of syngas provided by the gasification process will provide enough energy to generate enough electrons to run the entire system or not. While I have no doubt the energy produced will run Forest Walker's main systems the question is really about the electrons left over. Will it be enough to run the Bitcoin mining aspect of the system? Everything is a budget.
CO2 Production For Growth
Plants are lollipops. No matter if it’s a tree or a bush or a shrubbery, the entire thing is mostly sugar in various formats but mostly long chain carbohydrates like lignin and cellulose. Plants need three things to make sugar: CO2, H2O and light. In a forest, where tree densities can be quite high, CO2 availability becomes a limiting growth factor. It’d be in the forest interests to have more available CO2 providing for various sugar formation providing the organism with food and structure.
An odd thing about tree leaves, the openings that allow gasses like the ever searched for CO2 are on the bottom of the leaf (these are called stomata). Not many stomata are topside. This suggests that trees and bushes have evolved to find gasses like CO2 from below, not above and this further suggests CO2 might be in higher concentrations nearer the soil.
The soil life (bacterial, fungi etc.) is constantly producing enormous amounts of CO2 and it would stay in the soil forever (eventually killing the very soil life that produces it) if not for tidal forces. Water is everywhere and whether in pools, lakes, oceans or distributed in “moist” soils water moves towards to the moon. The water in the soil and also in the water tables below the soil rise toward the surface every day. When the water rises, it expels the accumulated gasses in the soil into the atmosphere and it’s mostly CO2. It’s a good bet on how leaves developed high populations of stomata on the underside of leaves. As the water relaxes (the tide goes out) it sucks oxygenated air back into the soil to continue the functions of soil life respiration. The soil “breathes” albeit slowly.
The gasses produced by the Forest Walker’s internal combustion engine consist primarily of CO2 and H2O. Combusting sugars produce the same gasses that are needed to construct the sugars because the universe is funny like that. The Forest Walker is constantly laying down these critical construction elements right where the trees need them: close to the ground to be gobbled up by the trees.
The Branch Drones
During the last ice age, giant mammals populated North America - forests and otherwise. Mastodons, woolly mammoths, rhinos, short-faced bears, steppe bison, caribou, musk ox, giant beavers, camels, gigantic ground-dwelling sloths, glyptodons, and dire wolves were everywhere. Many were ten to fifteen feet tall. As they crashed through forests, they would effectively cleave off dead side-branches of trees, halting the spread of a ground-based fire migrating into the tree crown ("laddering") which is a death knell for a forest.
These animals are all extinct now and forests no longer have any manner of pruning services. But, if we build drones fitted with cutting implements like saws and loppers, optical cameras and AI trained to discern dead branches from living ones, these drones could effectively take over pruning services by identifying, cutting, and dropping to the forest floor, dead branches. The dropped branches simply get collected by the Forest Walker as part of its continual mission.
The drones dock on the back of the Forest Walker to recharge their batteries when low. The whole scene would look like a grazing cow with some flies bothering it. This activity breaks the link between a relatively cool ground based fire and the tree crowns and is a vital element in forest fire control.
The Bitcoin Miner
Mining is one of four monetary incentive models, making this system a possibility for development. The other three are US Dept. of the Interior, township, county, and electrical utility company easement contracts for fuel load management, global carbon credits trading, and data set sales. All the above depends on obvious questions getting answered. I will list some obvious ones, but this is not an engineering document and is not the place for spreadsheets. How much Bitcoin one Forest Walker can mine depends on everything else. What amount of biomass can we process? Will that biomass flow enough Syngas to keep the lights on? Can the chassis support enough mining ASICs and supporting infrastructure? What does that weigh and will it affect field performance? How much power can the AC generator produce?
Other questions that are more philosophical persist. Even if a single Forest Walker can only mine scant amounts of BTC per day, that pales to how much fuel material it can process into biochar. We are talking about millions upon millions of forested acres in need of fuel load management. What can a single Forest Walker do? I am not thinking in singular terms. The Forest Walker must operate as a fleet. What could 50 do? 500?
What is it worth providing a service to the world by managing forest fuel loads? Providing proof of work to the global monetary system? Seeding soil with drought and nutrient resilience by the excretion, over time, of carbon by the ton? What did the last forest fire cost?
The Mesh Network
What could be better than one bitcoin mining, carbon sequestering, forest fire squelching, soil amending behemoth? Thousands of them, but then they would need to be able to talk to each other to coordinate position, data handling, etc. Fitted with a mesh networking device, like goTenna or Meshtastic LoRa equipment enables each Forest Walker to communicate with each other.
Now we have an interconnected fleet of Forest Walkers relaying data to each other and more importantly, aggregating all of that to the last link in the chain for uplink. Well, at least Bitcoin mining data. Since block data is lightweight, transmission of these data via mesh networking in fairly close quartered environs is more than doable. So, how does data transmit to the Bitcoin Network? How do the Forest Walkers get the previous block data necessary to execute on mining?
Back To The Chain
Getting Bitcoin block data to and from the network is the last puzzle piece. The standing presumption here is that wherever a Forest Walker fleet is operating, it is NOT within cell tower range. We further presume that the nearest Walmart Wi-Fi is hours away. Enter the Blockstream Satellite or something like it.
A separate, ground-based drone will have two jobs: To stay as close to the nearest Forest Walker as it can and to provide an antennae for either terrestrial or orbital data uplink. Bitcoin-centric data is transmitted to the "uplink drone" via the mesh networked transmitters and then sent on to the uplink and the whole flow goes in the opposite direction as well; many to one and one to many.
We cannot transmit data to the Blockstream satellite, and it will be up to Blockstream and companies like it to provide uplink capabilities in the future and I don't doubt they will. Starlink you say? What’s stopping that company from filtering out block data? Nothing because it’s Starlink’s system and they could decide to censor these data. It seems we may have a problem sending and receiving Bitcoin data in back country environs.
But, then again, the utility of this system in staunching the fuel load that creates forest fires is extremely useful around forested communities and many have fiber, Wi-Fi and cell towers. These communities could be a welcoming ground zero for first deployments of the Forest Walker system by the home and business owners seeking fire repression. In the best way, Bitcoin subsidizes the safety of the communities.
Sensor Packages
LiDaR
The benefit of having a Forest Walker fleet strolling through the forest is the never ending opportunity for data gathering. A plethora of deployable sensors gathering hyper-accurate data on everything from temperature to topography is yet another revenue generator. Data is valuable and the Forest Walker could generate data sales to various government entities and private concerns.
LiDaR (Light Detection and Ranging) can map topography, perform biomass assessment, comparative soil erosion analysis, etc. It so happens that the Forest Walker’s ability to “see,” to navigate about its surroundings, is LiDaR driven and since it’s already being used, we can get double duty by harvesting that data for later use. By using a laser to send out light pulses and measuring the time it takes for the reflection of those pulses to return, very detailed data sets incrementally build up. Eventually, as enough data about a certain area becomes available, the data becomes useful and valuable.
Forestry concerns, both private and public, often use LiDaR to build 3D models of tree stands to assess the amount of harvest-able lumber in entire sections of forest. Consulting companies offering these services charge anywhere from several hundred to several thousand dollars per square kilometer for such services. A Forest Walker generating such assessments on the fly while performing its other functions is a multi-disciplinary approach to revenue generation.
pH, Soil Moisture, and Cation Exchange Sensing
The Forest Walker is quadrupedal, so there are four contact points to the soil. Why not get a pH data point for every step it takes? We can also gather soil moisture data and cation exchange capacities at unheard of densities because of sampling occurring on the fly during commission of the system’s other duties. No one is going to build a machine to do pH testing of vast tracts of forest soils, but that doesn’t make the data collected from such an endeavor valueless. Since the Forest Walker serves many functions at once, a multitude of data products can add to the return on investment component.
Weather Data
Temperature, humidity, pressure, and even data like evapotranspiration gathered at high densities on broad acre scales have untold value and because the sensors are lightweight and don’t require large power budgets, they come along for the ride at little cost. But, just like the old mantra, “gas, grass, or ass, nobody rides for free”, these sensors provide potential revenue benefits just by them being present.
I’ve touched on just a few data genres here. In fact, the question for universities, governmental bodies, and other institutions becomes, “How much will you pay us to attach your sensor payload to the Forest Walker?”
Noise Suppression
Only you can prevent Metallica filling the surrounds with 120 dB of sound. Easy enough, just turn the car stereo off. But what of a fleet of 50 Forest Walkers operating in the backcountry or near a township? 500? 5000? Each one has a wood chipper, an internal combustion engine, hydraulic pumps, actuators, and more cooling fans than you can shake a stick at. It’s a walking, screaming fire-breathing dragon operating continuously, day and night, twenty-four hours a day, three hundred sixty-five days a year. The sound will negatively affect all living things and that impacts behaviors. Serious engineering consideration and prowess must deliver a silencing blow to the major issue of noise.
It would be foolish to think that a fleet of Forest Walkers could be silent, but if not a major design consideration, then the entire idea is dead on arrival. Townships would not allow them to operate even if they solved the problem of widespread fuel load and neither would governmental entities, and rightly so. Nothing, not man nor beast, would want to be subjected to an eternal, infernal scream even if it were to end within days as the fleet moved further away after consuming what it could. Noise and heat are the only real pollutants of this system; taking noise seriously from the beginning is paramount.
Fire Safety
A “fire-breathing dragon” is not the worst description of the Forest Walker. It eats wood, combusts it at very high temperatures and excretes carbon; and it does so in an extremely flammable environment. Bad mix for one Forest Walker, worse for many. One must take extreme pains to ensure that during normal operation, a Forest Walker could fall over, walk through tinder dry brush, or get pounded into the ground by a meteorite from Krypton and it wouldn’t destroy epic swaths of trees and baby deer. I envision an ultimate test of a prototype to include dowsing it in grain alcohol while it’s wrapped up in toilet paper like a pledge at a fraternity party. If it runs for 72 hours and doesn’t set everything on fire, then maybe outside entities won’t be fearful of something that walks around forests with a constant fire in its belly.
The Wrap
How we think about what can be done with and adjacent to Bitcoin is at least as important as Bitcoin’s economic standing itself. For those who will tell me that this entire idea is without merit, I say, “OK, fine. You can come up with something, too.” What can we plug Bitcoin into that, like a battery, makes something that does not work, work? That’s the lesson I get from this entire exercise. No one was ever going to hire teams of humans to go out and "clean the forest". There's no money in that. The data collection and sales from such an endeavor might provide revenues over the break-even point but investment demands Alpha in this day and age. But, plug Bitcoin into an almost viable system and, voilà! We tip the scales to achieve lift-off.
Let’s face it, we haven’t scratched the surface of Bitcoin’s forcing function on our minds. Not because it’s Bitcoin, but because of what that invention means. The question that pushes me to approach things this way is, “what can we create that one system’s waste is another system’s feedstock?” The Forest Walker system’s only real waste is the conversion of low entropy energy (wood and syngas) into high entropy energy (heat and noise). All other output is beneficial to humanity.
Bitcoin, I believe, is the first product of a new mode of human imagination. An imagination newly forged over the past few millennia of being lied to, stolen from, distracted and otherwise mis-allocated to a black hole of the nonsensical. We are waking up.
What I have presented is not science fiction. Everything I have described here is well within the realm of possibility. The question is one of viability, at least in terms of the detritus of the old world we find ourselves departing from. This system would take a non-trivial amount of time and resources to develop. I think the system would garner extensive long-term contracts from those who have the most to lose from wildfires, the most to gain from hyperaccurate data sets, and, of course, securing the most precious asset in the world. Many may not see it that way, for they seek Alpha and are therefore blind to other possibilities. Others will see only the possibilities; of thinking in a new way, of looking at things differently, and dreaming of what comes next.
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@ e3ba5e1a:5e433365
2025-01-13 16:47:27My blog posts and reading material have both been on a decidedly economics-heavy slant recently. The topic today, incentives, squarely falls into the category of economics. However, when I say economics, I’m not talking about “analyzing supply and demand curves.” I’m talking about the true basis of economics: understanding how human beings make decisions in a world of scarcity.
A fair definition of incentive is “a reward or punishment that motivates behavior to achieve a desired outcome.” When most people think about economic incentives, they’re thinking of money. If I offer my son $5 if he washes the dishes, I’m incentivizing certain behavior. We can’t guarantee that he’ll do what I want him to do, but we can agree that the incentive structure itself will guide and ultimately determine what outcome will occur.
The great thing about monetary incentives is how easy they are to talk about and compare. “Would I rather make $5 washing the dishes or $10 cleaning the gutters?” But much of the world is incentivized in non-monetary ways too. For example, using the “punishment” half of the definition above, I might threaten my son with losing Nintendo Switch access if he doesn’t wash the dishes. No money is involved, but I’m still incentivizing behavior.
And there are plenty of incentives beyond our direct control! My son is also incentivized to not wash dishes because it’s boring, or because he has some friends over that he wants to hang out with, or dozens of other things. Ultimately, the conflicting array of different incentive structures placed on him will ultimately determine what actions he chooses to take.
Why incentives matter
A phrase I see often in discussions—whether they are political, parenting, economic, or business—is “if they could just do…” Each time I see that phrase, I cringe a bit internally. Usually, the underlying assumption of the statement is “if people would behave contrary to their incentivized behavior then things would be better.” For example:
- If my kids would just go to bed when I tell them, they wouldn’t be so cranky in the morning.
- If people would just use the recycling bin, we wouldn’t have such a landfill problem.
- If people would just stop being lazy, our team would deliver our project on time.
In all these cases, the speakers are seemingly flummoxed as to why the people in question don’t behave more rationally. The problem is: each group is behaving perfectly rationally.
- The kids have a high time preference, and care more about the joy of staying up now than the crankiness in the morning. Plus, they don’t really suffer the consequences of morning crankiness, their parents do.
- No individual suffers much from their individual contribution to a landfill. If they stopped growing the size of the landfill, it would make an insignificant difference versus the amount of effort they need to engage in to properly recycle.
- If a team doesn’t properly account for the productivity of individuals on a project, each individual receives less harm from their own inaction. Sure, the project may be delayed, company revenue may be down, and they may even risk losing their job when the company goes out of business. But their laziness individually won’t determine the entirety of that outcome. By contrast, they greatly benefit from being lazy by getting to relax at work, go on social media, read a book, or do whatever else they do when they’re supposed to be working.
My point here is that, as long as you ignore the reality of how incentives drive human behavior, you’ll fail at getting the outcomes you want.
If everything I wrote up until now made perfect sense, you understand the premise of this blog post. The rest of it will focus on a bunch of real-world examples to hammer home the point, and demonstrate how versatile this mental model is.
Running a company
Let’s say I run my own company, with myself as the only employee. My personal revenue will be 100% determined by my own actions. If I decide to take Tuesday afternoon off and go fishing, I’ve chosen to lose that afternoon’s revenue. Implicitly, I’ve decided that the enjoyment I get from an afternoon of fishing is greater than the potential revenue. You may think I’m being lazy, but it’s my decision to make. In this situation, the incentive–money–is perfectly aligned with my actions.
Compare this to a typical company/employee relationship. I might have a bank of Paid Time Off (PTO) days, in which case once again my incentives are relatively aligned. I know that I can take off 15 days throughout the year, and I’ve chosen to use half a day for the fishing trip. All is still good.
What about unlimited time off? Suddenly incentives are starting to misalign. I don’t directly pay a price for not showing up to work on Tuesday. Or Wednesday as well, for that matter. I might ultimately be fired for not doing my job, but that will take longer to work its way through the system than simply not making any money for the day taken off.
Compensation overall falls into this misaligned incentive structure. Let’s forget about taking time off. Instead, I work full time on a software project I’m assigned. But instead of using the normal toolchain we’re all used to at work, I play around with a new programming language. I get the fun and joy of playing with new technology, and potentially get to pad my resume a bit when I’m ready to look for a new job. But my current company gets slower results, less productivity, and is forced to subsidize my extracurricular learning.
When a CEO has a bonus structure based on profitability, he’ll do everything he can to make the company profitable. This might include things that actually benefit the company, like improving product quality, reducing internal red tape, or finding cheaper vendors. But it might also include destructive practices, like slashing the R\&D budget to show massive profits this year, in exchange for a catastrophe next year when the next version of the product fails to ship.
Or my favorite example. My parents owned a business when I was growing up. They had a back office where they ran operations like accounting. All of the furniture was old couches from our house. After all, any money they spent on furniture came right out of their paychecks! But in a large corporate environment, each department is generally given a budget for office furniture, a budget which doesn’t roll over year-to-year. The result? Executives make sure to spend the entire budget each year, often buying furniture far more expensive than they would choose if it was their own money.
There are plenty of details you can quibble with above. It’s in a company’s best interest to give people downtime so that they can come back recharged. Having good ergonomic furniture can in fact increase productivity in excess of the money spent on it. But overall, the picture is pretty clear: in large corporate structures, you’re guaranteed to have mismatches between the company’s goals and the incentive structure placed on individuals.
Using our model from above, we can lament how lazy, greedy, and unethical the employees are for doing what they’re incentivized to do instead of what’s right. But that’s simply ignoring the reality of human nature.
Moral hazard
Moral hazard is a situation where one party is incentivized to take on more risk because another party will bear the consequences. Suppose I tell my son when he turns 21 (or whatever legal gambling age is) that I’ll cover all his losses for a day at the casino, but he gets to keep all the winnings.
What do you think he’s going to do? The most logical course of action is to place the largest possible bets for as long as possible, asking me to cover each time he loses, and taking money off the table and into his bank account each time he wins.
But let’s look at a slightly more nuanced example. I go to a bathroom in the mall. As I’m leaving, I wash my hands. It will take me an extra 1 second to turn off the water when I’m done washing. That’s a trivial price to pay. If I don’t turn off the water, the mall will have to pay for many liters of wasted water, benefiting no one. But I won’t suffer any consequences at all.
This is also a moral hazard, but most people will still turn off the water. Why? Usually due to some combination of other reasons such as:
- We’re so habituated to turning off the water that we don’t even consider not turning it off. Put differently, the mental effort needed to not turn off the water is more expensive than the 1 second of time to turn it off.
- Many of us have been brought up with a deep guilt about wasting resources like water. We have an internal incentive structure that makes the 1 second to turn off the water much less costly than the mental anguish of the waste we created.
- We’re afraid we’ll be caught by someone else and face some kind of social repercussions. (Or maybe more than social. Are you sure there isn’t a law against leaving the water tap on?)
Even with all that in place, you may notice that many public bathrooms use automatic water dispensers. Sure, there’s a sanitation reason for that, but it’s also to avoid this moral hazard.
A common denominator in both of these is that the person taking the action that causes the liability (either the gambling or leaving the water on) is not the person who bears the responsibility for that liability (the father or the mall owner). Generally speaking, the closer together the person making the decision and the person incurring the liability are, the smaller the moral hazard.
It’s easy to demonstrate that by extending the casino example a bit. I said it was the father who was covering the losses of the gambler. Many children (though not all) would want to avoid totally bankrupting their parents, or at least financially hurting them. Instead, imagine that someone from the IRS shows up at your door, hands you a credit card, and tells you you can use it at a casino all day, taking home all the chips you want. The money is coming from the government. How many people would put any restriction on how much they spend?
And since we’re talking about the government already…
Government moral hazards
As I was preparing to write this blog post, the California wildfires hit. The discussions around those wildfires gave a huge number of examples of moral hazards. I decided to cherry-pick a few for this post.
The first and most obvious one: California is asking for disaster relief funds from the federal government. That sounds wonderful. These fires were a natural disaster, so why shouldn’t the federal government pitch in and help take care of people?
The problem is, once again, a moral hazard. In the case of the wildfires, California and Los Angeles both had ample actions they could have taken to mitigate the destruction of this fire: better forest management, larger fire department, keeping the water reservoirs filled, and probably much more that hasn’t come to light yet.
If the federal government bails out California, it will be a clear message for the future: your mistakes will be fixed by others. You know what kind of behavior that incentivizes? More risky behavior! Why spend state funds on forest management and extra firefighters—activities that don’t win politicians a lot of votes in general—when you could instead spend it on a football stadium, higher unemployment payments, or anything else, and then let the feds cover the cost of screw-ups.
You may notice that this is virtually identical to the 2008 “too big to fail” bail-outs. Wall Street took insanely risky behavior, reaped huge profits for years, and when they eventually got caught with their pants down, the rest of us bailed them out. “Privatizing profits, socializing losses.”
And here’s the absolute best part of this: I can’t even truly blame either California or Wall Street. (I mean, I do blame them, I think their behavior is reprehensible, but you’ll see what I mean.) In a world where the rules of the game implicitly include the bail-out mentality, you would be harming your citizens/shareholders/investors if you didn’t engage in that risky behavior. Since everyone is on the hook for those socialized losses, your best bet is to maximize those privatized profits.
There’s a lot more to government and moral hazard, but I think these two cases demonstrate the crux pretty solidly. But let’s leave moral hazard behind for a bit and get to general incentivization discussions.
Non-monetary competition
At least 50% of the economics knowledge I have comes from the very first econ course I took in college. That professor was amazing, and had some very colorful stories. I can’t vouch for the veracity of the two I’m about to share, but they definitely drive the point home.
In the 1970s, the US had an oil shortage. To “fix” this problem, they instituted price caps on gasoline, which of course resulted in insufficient gasoline. To “fix” this problem, they instituted policies where, depending on your license plate number, you could only fill up gas on certain days of the week. (Irrelevant detail for our point here, but this just resulted in people filling up their tanks more often, no reduction in gas usage.)
Anyway, my professor’s wife had a friend. My professor described in great detail how attractive this woman was. I’ll skip those details here since this is a PG-rated blog. In any event, she never had any trouble filling up her gas tank any day of the week. She would drive up, be told she couldn’t fill up gas today, bat her eyes at the attendant, explain how helpless she was, and was always allowed to fill up gas.
This is a demonstration of non-monetary compensation. Most of the time in a free market, capitalist economy, people are compensated through money. When price caps come into play, there’s a limit to how much monetary compensation someone can receive. And in that case, people find other ways of competing. Like this woman’s case: through using flirtatious behavior to compensate the gas station workers to let her cheat the rules.
The other example was much more insidious. Santa Monica had a problem: it was predominantly wealthy and white. They wanted to fix this problem, and decided to put in place rent controls. After some time, they discovered that Santa Monica had become wealthier and whiter, the exact opposite of their desired outcome. Why would that happen?
Someone investigated, and ended up interviewing a landlady that demonstrated the reason. She was an older white woman, and admittedly racist. Prior to the rent controls, she would list her apartments in the newspaper, and would be legally obligated to rent to anyone who could afford it. Once rent controls were in place, she took a different tact. She knew that she would only get a certain amount for the apartment, and that the demand for apartments was higher than the supply. That meant she could be picky.
She ended up finding tenants through friends-of-friends. Since it wasn’t an official advertisement, she wasn’t legally required to rent it out if someone could afford to pay. Instead, she got to interview people individually and then make them an offer. Normally, that would have resulted in receiving a lower rental price, but not under rent controls.
So who did she choose? A young, unmarried, wealthy, white woman. It made perfect sense. Women were less intimidating and more likely to maintain the apartment better. Wealthy people, she determined, would be better tenants. (I have no idea if this is true in practice or not, I’m not a landlord myself.) Unmarried, because no kids running around meant less damage to the property. And, of course, white. Because she was racist, and her incentive structure made her prefer whites.
You can deride her for being racist, I won’t disagree with you. But it’s simply the reality. Under the non-rent-control scenario, her profit motive for money outweighed her racism motive. But under rent control, the monetary competition was removed, and she was free to play into her racist tendencies without facing any negative consequences.
Bureaucracy
These were the two examples I remember for that course. But non-monetary compensation pops up in many more places. One highly pertinent example is bureaucracies. Imagine you have a government office, or a large corporation’s acquisition department, or the team that apportions grants at a university. In all these cases, you have a group of people making decisions about handing out money that has no monetary impact on them. If they give to the best qualified recipients, they receive no raises. If they spend the money recklessly on frivolous projects, they face no consequences.
Under such an incentivization scheme, there’s little to encourage the bureaucrats to make intelligent funding decisions. Instead, they’ll be incentivized to spend the money where they recognize non-monetary benefits. This is why it’s so common to hear about expensive meals, gift bags at conferences, and even more inappropriate ways of trying to curry favor with those that hold the purse strings.
Compare that ever so briefly with the purchases made by a small mom-and-pop store like my parents owned. Could my dad take a bribe to buy from a vendor who’s ripping him off? Absolutely he could! But he’d lose more on the deal than he’d make on the bribe, since he’s directly incentivized by the deal itself. It would make much more sense for him to go with the better vendor, save $5,000 on the deal, and then treat himself to a lavish $400 meal to celebrate.
Government incentivized behavior
This post is getting longer in the tooth than I’d intended, so I’ll finish off with this section and make it a bit briefer. Beyond all the methods mentioned above, government has another mechanism for modifying behavior: through directly changing incentives via legislation, regulation, and monetary policy. Let’s see some examples:
- Artificial modification of interest rates encourages people to take on more debt than they would in a free capital market, leading to malinvestment and a consumer debt crisis, and causing the boom-bust cycle we all painfully experience.
- Going along with that, giving tax breaks on interest payments further artificially incentivizes people to take on debt that they wouldn’t otherwise.
- During COVID-19, at some points unemployment benefits were greater than minimum wage, incentivizing people to rather stay home and not work than get a job, leading to reduced overall productivity in the economy and more printed dollars for benefits. In other words, it was a perfect recipe for inflation.
- The tax code gives deductions to “help” people. That might be true, but the real impact is incentivizing people to make decisions they wouldn’t have otherwise. For example, giving out tax deductions on children encourages having more kids. Tax deductions on childcare and preschools incentivizes dual-income households. Whether or not you like the outcomes, it’s clear that it’s government that’s encouraging these outcomes to happen.
- Tax incentives cause people to engage in behavior they wouldn’t otherwise (daycare+working mother, for example).
- Inflation means that the value of your money goes down over time, which encourages people to spend more today, when their money has a larger impact. (Milton Friedman described this as high living.)
Conclusion
The idea here is simple, and fully encapsulated in the title: incentives determine outcomes. If you want to know how to get a certain outcome from others, incentivize them to want that to happen. If you want to understand why people act in seemingly irrational ways, check their incentives. If you’re confused why leaders (and especially politicians) seem to engage in destructive behavior, check their incentives.
We can bemoan these realities all we want, but they are realities. While there are some people who have a solid internal moral and ethical code, and that internal code incentivizes them to behave against their externally-incentivized interests, those people are rare. And frankly, those people are self-defeating. People should take advantage of the incentives around them. Because if they don’t, someone else will.
(If you want a literary example of that last comment, see the horse in Animal Farm.)
How do we improve the world under these conditions? Make sure the incentives align well with the overall goals of society. To me, it’s a simple formula:
- Focus on free trade, value for value, as the basis of a society. In that system, people are always incentivized to provide value to other people.
- Reduce the size of bureaucracies and large groups of all kinds. The larger an organization becomes, the farther the consequences of decisions are from those who make them.
- And since the nature of human beings will be to try and create areas where they can control the incentive systems to their own benefits, make that as difficult as possible. That comes in the form of strict limits on government power, for example.
And even if you don’t want to buy in to this conclusion, I hope the rest of the content was educational, and maybe a bit entertaining!
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@ 849838f4:0ea97fbb
2025-04-29 02:56:132nmn
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@ 3f770d65:7a745b24
2025-01-12 21:03:36I’ve been using Notedeck for several months, starting with its extremely early and experimental alpha versions, all the way to its current, more stable alpha releases. The journey has been fascinating, as I’ve had the privilege of watching it evolve from a concept into a functional and promising tool.
In its earliest stages, Notedeck was raw—offering glimpses of its potential but still far from practical for daily use. Even then, the vision behind it was clear: a platform designed to redefine how we interact with Nostr by offering flexibility and power for all users.
I'm very bullish on Notedeck. Why? Because Will Casarin is making it! Duh! 😂
Seriously though, if we’re reimagining the web and rebuilding portions of the Internet, it’s important to recognize the potential of Notedeck. If Nostr is reimagining the web, then Notedeck is reimagining the Nostr client.
Notedeck isn’t just another Nostr app—it’s more a Nostr browser that functions more like an operating system with micro-apps. How cool is that?
Much like how Google's Chrome evolved from being a web browser with a task manager into ChromeOS, a full blown operating system, Notedeck aims to transform how we interact with the Nostr. It goes beyond individual apps, offering a foundation for a fully integrated ecosystem built around Nostr.
As a Nostr evangelist, I love to scream INTEROPERABILITY and tout every application's integrations. Well, Notedeck has the potential to be one of the best platforms to showcase these integrations in entirely new and exciting ways.
Do you want an Olas feed of images? Add the media column.
Do you want a feed of live video events? Add the zap.stream column.
Do you want Nostr Nests or audio chats? Add that column to your Notedeck.
Git? Email? Books? Chat and DMs? It's all possible.
Not everyone wants a super app though, and that’s okay. As with most things in the Nostr ecosystem, flexibility is key. Notedeck gives users the freedom to choose how they engage with it—whether it’s simply following hashtags or managing straightforward feeds. You'll be able to tailor Notedeck to fit your needs, using it as extensively or minimally as you prefer.
Notedeck is designed with a local-first approach, utilizing Nostr content stored directly on your device via the local nostrdb. This will enable a plethora of advanced tools such as search and filtering, the creation of custom feeds, and the ability to develop personalized algorithms across multiple Notedeck micro-applications—all with unparalleled flexibility.
Notedeck also supports multicast. Let's geek out for a second. Multicast is a method of communication where data is sent from one source to multiple destinations simultaneously, but only to devices that wish to receive the data. Unlike broadcast, which sends data to all devices on a network, multicast targets specific receivers, reducing network traffic. This is commonly used for efficient data distribution in scenarios like streaming, conferencing, or large-scale data synchronization between devices.
In a local first world where each device holds local copies of your nostr nodes, and each device transparently syncs with each other on the local network, each node becomes a backup. Your data becomes antifragile automatically. When a node goes down it can resync and recover from other nodes. Even if not all nodes have a complete collection, negentropy can pull down only what is needed from each device. All this can be done without internet.
-Will Casarin
In the context of Notedeck, multicast would allow multiple devices to sync their Nostr nodes with each other over a local network without needing an internet connection. Wild.
Notedeck aims to offer full customization too, including the ability to design and share custom skins, much like Winamp. Users will also be able to create personalized columns and, in the future, share their setups with others. This opens the door for power users to craft tailored Nostr experiences, leveraging their expertise in the protocol and applications. By sharing these configurations as "Starter Decks," they can simplify onboarding and showcase the best of Nostr’s ecosystem.
Nostr’s “Other Stuff” can often be difficult to discover, use, or understand. Many users doesn't understand or know how to use web browser extensions to login to applications. Let's not even get started with nsecbunkers. Notedeck will address this challenge by providing a native experience that brings these lesser-known applications, tools, and content into a user-friendly and accessible interface, making exploration seamless. However, that doesn't mean Notedeck should disregard power users that want to use nsecbunkers though - hint hint.
For anyone interested in watching Nostr be developed live, right before your very eyes, Notedeck’s progress serves as a reminder of what’s possible when innovation meets dedication. The current alpha is already demonstrating its ability to handle complex use cases, and I’m excited to see how it continues to grow as it moves toward a full release later this year.
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@ 23b0e2f8:d8af76fc
2025-01-08 18:17:52Necessário
- Um Android que você não use mais (a câmera deve estar funcionando).
- Um cartão microSD (opcional, usado apenas uma vez).
- Um dispositivo para acompanhar seus fundos (provavelmente você já tem um).
Algumas coisas que você precisa saber
- O dispositivo servirá como um assinador. Qualquer movimentação só será efetuada após ser assinada por ele.
- O cartão microSD será usado para transferir o APK do Electrum e garantir que o aparelho não terá contato com outras fontes de dados externas após sua formatação. Contudo, é possível usar um cabo USB para o mesmo propósito.
- A ideia é deixar sua chave privada em um dispositivo offline, que ficará desligado em 99% do tempo. Você poderá acompanhar seus fundos em outro dispositivo conectado à internet, como seu celular ou computador pessoal.
O tutorial será dividido em dois módulos:
- Módulo 1 - Criando uma carteira fria/assinador.
- Módulo 2 - Configurando um dispositivo para visualizar seus fundos e assinando transações com o assinador.
No final, teremos:
- Uma carteira fria que também servirá como assinador.
- Um dispositivo para acompanhar os fundos da carteira.
Módulo 1 - Criando uma carteira fria/assinador
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Baixe o APK do Electrum na aba de downloads em https://electrum.org/. Fique à vontade para verificar as assinaturas do software, garantindo sua autenticidade.
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Formate o cartão microSD e coloque o APK do Electrum nele. Caso não tenha um cartão microSD, pule este passo.
- Retire os chips e acessórios do aparelho que será usado como assinador, formate-o e aguarde a inicialização.
- Durante a inicialização, pule a etapa de conexão ao Wi-Fi e rejeite todas as solicitações de conexão. Após isso, você pode desinstalar aplicativos desnecessários, pois precisará apenas do Electrum. Certifique-se de que Wi-Fi, Bluetooth e dados móveis estejam desligados. Você também pode ativar o modo avião.\ (Curiosidade: algumas pessoas optam por abrir o aparelho e danificar a antena do Wi-Fi/Bluetooth, impossibilitando essas funcionalidades.)
- Insira o cartão microSD com o APK do Electrum no dispositivo e instale-o. Será necessário permitir instalações de fontes não oficiais.
- No Electrum, crie uma carteira padrão e gere suas palavras-chave (seed). Anote-as em um local seguro. Caso algo aconteça com seu assinador, essas palavras permitirão o acesso aos seus fundos novamente. (Aqui entra seu método pessoal de backup.)
Módulo 2 - Configurando um dispositivo para visualizar seus fundos e assinando transações com o assinador.
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Criar uma carteira somente leitura em outro dispositivo, como seu celular ou computador pessoal, é uma etapa bastante simples. Para este tutorial, usaremos outro smartphone Android com Electrum. Instale o Electrum a partir da aba de downloads em https://electrum.org/ ou da própria Play Store. (ATENÇÃO: O Electrum não existe oficialmente para iPhone. Desconfie se encontrar algum.)
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Após instalar o Electrum, crie uma carteira padrão, mas desta vez escolha a opção Usar uma chave mestra.
- Agora, no assinador que criamos no primeiro módulo, exporte sua chave pública: vá em Carteira > Detalhes da carteira > Compartilhar chave mestra pública.
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Escaneie o QR gerado da chave pública com o dispositivo de consulta. Assim, ele poderá acompanhar seus fundos, mas sem permissão para movimentá-los.
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Para receber fundos, envie Bitcoin para um dos endereços gerados pela sua carteira: Carteira > Addresses/Coins.
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Para movimentar fundos, crie uma transação no dispositivo de consulta. Como ele não possui a chave privada, será necessário assiná-la com o dispositivo assinador.
- No assinador, escaneie a transação não assinada, confirme os detalhes, assine e compartilhe. Será gerado outro QR, desta vez com a transação já assinada.
- No dispositivo de consulta, escaneie o QR da transação assinada e transmita-a para a rede.
Conclusão
Pontos positivos do setup:
- Simplicidade: Basta um dispositivo Android antigo.
- Flexibilidade: Funciona como uma ótima carteira fria, ideal para holders.
Pontos negativos do setup:
- Padronização: Não utiliza seeds no padrão BIP-39, você sempre precisará usar o electrum.
- Interface: A aparência do Electrum pode parecer antiquada para alguns usuários.
Nesse ponto, temos uma carteira fria que também serve para assinar transações. O fluxo de assinar uma transação se torna: Gerar uma transação não assinada > Escanear o QR da transação não assinada > Conferir e assinar essa transação com o assinador > Gerar QR da transação assinada > Escanear a transação assinada com qualquer outro dispositivo que possa transmiti-la para a rede.
Como alguns devem saber, uma transação assinada de Bitcoin é praticamente impossível de ser fraudada. Em um cenário catastrófico, você pode mesmo que sem internet, repassar essa transação assinada para alguém que tenha acesso à rede por qualquer meio de comunicação. Mesmo que não queiramos que isso aconteça um dia, esse setup acaba por tornar essa prática possível.
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@ d41bf82f:ed90d888
2025-04-29 02:16:06เบื้องหลังการเปลี่ยนแปลงครั้งใหญ่ในประวัติศาสตร์ เราต้องเข้าใจปัจจัยที่เปลี่ยนแปลงตรรกะของความรุนแรง โดยเฉพาะปัจจัยเชิงมหภาค 4 ประเภทหลัก ได้แก่ ภูมิประเทศ ภูมิอากาศ จุลชีพ และเทคโนโลยี
- ภูมิประเทศ เป็นตัวกำหนดที่สำคัญมากต่อรูปแบบของรัฐและความสามารถในการควบคุมพลเมืองโดยเฉพาะเมื่อเปรียบระหว่างสภาพภูมิประเทศทางบกและทางทะเล พื้นที่ทะเลเปิดนั้นยากต่อการผูกขาดหรือควบคุม ทำให้กฎของรัฐไม่สามารถบังคับใช้ได้อย่างมีประสิทธิภาพ ต่างจากแผ่นดิน ซึ่งส่งผลต่อการจัดวางอำนาจอย่างลึกซึ้ง เมื่อเศรษฐกิจเริ่มเคลื่อนเข้าสู่โลกไซเบอร์ซึ่งมีลักษณะคล้ายทะเลเปิดมากกว่าภาคพื้นดิน รูปแบบของการปกครองและการใช้ความรุนแรงจึงมีแนวโน้มเปลี่ยนแปลงไปอย่างมีนัยสำคัญ ประวัติศาสตร์ก็สนับสนุนมุมมองนี้ รัฐยุคแรก ๆ มักเกิดขึ้นในพื้นที่ราบลุ่มชลประทานที่ล้อมรอบด้วยทะเลทราย เช่น เมโสโปเตเมียและอียิปต์ ซึ่งทำให้ประชาชนจำเป็นต้องพึ่งพารัฐที่สามารถควบคุมแหล่งน้ำเพื่อดำรงชีวิตได้ ก่อให้เกิดระบบเผด็จการที่มั่นคง ขณะที่ภูมิประเทศที่กระจายอำนาจ เช่น กรีซโบราณ กลับเอื้อต่อการเกิดประชาธิปไตย เพราะผู้คนสามารถพึ่งตนเองได้มากกว่า มีอิสระในการค้าขายทางทะเล และเข้าถึงรายได้ที่นำไปแลกกับอำนาจทางทหารและการเมืองได้
- ภูมิอากาศก็มีบทบาทไม่แพ้กันในการกำหนดกรอบของอำนาจทางการเมือง เช่น หลังสิ้นยุคน้ำแข็งราว 13,000 ปีก่อน ความเปลี่ยนแปลงของระบบนิเวศทำให้ทุ่งหญ้าเลี้ยงสัตว์ลดลง และป่าทึบเข้ามาแทนที่ ทำให้มนุษย์ต้องเปลี่ยนวิถีชีวิตจากนักล่ามาเป็นเกษตรกรอย่างหลีกเลี่ยงไม่ได้ การเปลี่ยนแปลงนี้ไม่ได้เกิดขึ้นเพราะความสมัครใจ แต่เพราะสิ่งแวดล้อมบีบบังคับ ภูมิอากาศยังมีอิทธิพลต่อเสถียรภาพทางเศรษฐกิจและการเมืองอย่างชัดเจน เช่น ศตวรรษที่ 17 ซึ่งเป็นยุคหนาวเย็นที่สุดช่วงหนึ่งในประวัติศาสตร์ ทำให้เกิดวิกฤตอาหารและความอดอยากทั่วโลก นำไปสู่การก่อกบฏและการปฏิวัติในหลายประเทศ
- จุลชีพ ก็มีบทบาทในเชิงการเมืองมหภาคอย่างลึกซึ้ง การล่มสลายของประชากรพื้นเมืองในทวีปอเมริกาจากโรคที่ชาวยุโรปนำเข้า เช่น หัด หรือไข้ทรพิษ ทำให้ยุโรปสามารถยึดครองดินแดนเหล่านั้นได้อย่างง่ายดาย แม้ในบางครั้งจะยังไม่ได้ลงจากเรือด้วยซ้ำ ในอีกด้านหนึ่ง จุลชีพก็เคยเป็นกำแพงที่ป้องกันไม่ให้จักรวรรดิยุโรปขยายอำนาจ เช่น มาลาเรียในแอฟริกาที่เคยทำให้พื้นที่เหล่านั้น “ต่อต้านอำนาจจากภายนอก” ได้อย่างนานหลายศตวรรษ
- เทคโนโลยี ซึ่งเป็นปัจจัยที่ที่ทรงอิทธิพลที่สุดต่อการเปลี่ยนแปลงของโครงสร้างอำนาจในประวัติศาสตร์มนุษย์ เพราะมันสามารถเปลี่ยน “ต้นทุน” และ “ผลตอบแทน” ของการใช้ความรุนแรงได้อย่างรวดเร็วและชัดเจน ทั้งในแง่ของอาณาเขต ขนาดของรัฐ ลักษณะของสงคราม และแม้แต่ความชอบธรรมทางการเมือง ผู้เขียนได้แยกอิทธิพลของเทคโนโลยีออกเป็น 5 มิติหลัก ซึ่งล้วนมีบทบาทอย่างสำคัญในการจัดรูปแบบของอำนาจ ได้แก่:
A. ดุลยภาพระหว่างการโจมตีและการป้องกัน เทคโนโลยีแต่ละยุคมีผลอย่างมากต่อความได้เปรียบระหว่างฝ่ายรุกกับฝ่ายรับ หากเทคโนโลยีในยุคนั้นเอื้อต่อ “การโจมตี” (เช่น เครื่องยิงหิน, รถถัง, ระเบิดทางอากาศ) ต้นทุนของการขยายอำนาจจะต่ำลง รัฐหรือจักรวรรดิจะรวมศูนย์มากขึ้นเพราะสามารถควบคุมพื้นที่กว้างได้ด้วยกำลังที่มีประสิทธิภาพ แต่หากเทคโนโลยีเอื้อให้ “การป้องกัน” มีต้นทุนต่ำและได้เปรียบ (เช่น ปราสาทยุคกลาง, อาวุธต่อต้านอากาศยาน, การเข้ารหัสข้อมูลในโลกไซเบอร์) รัฐจะมีแนวโน้มกระจายตัว และอำนาจท้องถิ่นจะแข็งแกร่งขึ้น
B. ความเท่าเทียมกันทางทหารของพลเมือง เทคโนโลยีอาวุธยังเป็นตัวแปรสำคัญในการกำหนดว่า “พลเมืองธรรมดา” มีอำนาจเพียงใดในการเผชิญหน้ากับชนชั้นปกครอง ตัวอย่างที่ชัดเจนคือในยุคก่อนปฏิวัติดินปืน ชาวนาที่ถือแค่ส้อมหรือจอบไม่อาจต้านอัศวินติดเกราะได้ แต่เมื่อการใช้ปืนแพร่หลาย เส้นแบ่งระหว่างสามัญชนกับขุนนางก็เริ่มจางลง และเกิดการปฏิวัติทางสังคมตามมาในหลายพื้นที่
C. ขนาดขององค์กรที่จำเป็นต่อการใช้ความรุนแรง บางเทคโนโลยีต้องการระบบสนับสนุนขนาดใหญ่ เช่น เสบียง การสื่อสาร การขนส่ง และระบบการฝึกฝนที่ซับซ้อน ซึ่งหมายความว่าเฉพาะองค์กรที่มีทรัพยากรขนาดใหญ่เท่านั้นจึงสามารถใช้อำนาจอย่างมีประสิทธิภาพได้ ตัวอย่างเช่น สมัยสงครามโลก รัฐที่มีอุตสาหกรรมและสายส่งที่มั่นคงเท่านั้นจึงสามารถรบได้นาน
D. ขนาดของกิจกรรมทางเศรษฐกิจในการผลิต ขนาดของหน่วยเศรษฐกิจที่ “เหมาะสมที่สุด” ในการผลิตสินค้าและบริการก็เป็นตัวแปรทางเทคโนโลยีที่ส่งผลต่อโครงสร้างของรัฐ หากเศรษฐกิจจำเป็นต้องอาศัยตลาดขนาดใหญ่ พื้นที่กว้าง หรือระบบโลจิสติกส์ที่ซับซ้อน รัฐขนาดใหญ่จะมีข้อได้เปรียบ เช่น จักรวรรดิอังกฤษที่สามารถจัดระบบเศรษฐกิจข้ามทวีปได้ในศตวรรษที่ 19 แต่หากเทคโนโลยีเอื้อให้เศรษฐกิจท้องถิ่นมีความคล่องตัว สามารถผลิตแบบกระจาย (distributed production)ได้ รัฐขนาดใหญ่ก็จะมีประสิทธิภาพน้อยลง และอำนาจจะกระจายตัว
E. การกระจายของเทคโนโลยี หากเทคโนโลยีสามารถถูก “ผูกขาด” ได้โดยกลุ่มเล็ก ๆ เช่น การควบคุมแหล่งพลังงานนิวเคลียร์ หรือการพัฒนาอาวุธล้ำสมัย อำนาจจะกระจุกอยู่กับชนชั้นนำ แต่หากเทคโนโลยีแพร่กระจายได้อย่างกว้างขวาง เช่น การใช้ดินปืน แป้นพิมพ์ อำนาจก็จะสลายตัวไปยังประชาชนทั่วไป
เมื่อพิจารณาประวัติศาสตร์ในมุมของ “สิ่งที่เกิดขึ้นจริง” ควบคู่กับ “สิ่งที่อาจเกิดขึ้นได้” เราจะเริ่มตระหนักถึงบทบาทของโอกาสและความเปราะบางที่มักถูกมองข้าม โดยเฉพาะในกรณีของจุลชีพ แม้จะเป็นตัวแปรที่ทรงพลังในอดีต แต่กลับดูเหมือนว่ามันมีผลกระทบต่อโครงสร้างอำนาจในยุคใหม่ต่ำกว่าที่ควรจะเป็น ทั้งที่ในทางทฤษฎีแล้ว มันมีศักยภาพสูงยิ่งในการเปลี่ยนแปลงประวัติศาสตร์ หากเชื้อไวรัสสายพันธุ์ใหม่ที่ร้ายแรงและแพร่กระจายได้ง่าย เทียบเท่าหรือรุนแรงกว่ามาลาเรีย แพร่ระบาดในหมู่นักสำรวจโปรตุเกสช่วงต้นของยุคการเดินเรือ อาจไม่มีการสำรวจหรือขยายอาณานิคมเกิดขึ้นเลย เช่นเดียวกับหากโคลัมบัสและผู้ย้ายถิ่นกลุ่มแรกในโลกใหม่ต้องเผชิญโรคร้ายที่มีฤทธิ์รุนแรงพอ ๆ กับหัดซึ่งคร่าชีวิตชาวพื้นเมืองไปอย่างมหาศาล พวกเขาอาจไม่สามารถตั้งรกรากได้เลยด้วยซ้ำ
แต่เมื่อมองย้อนกลับไป สิ่งเหล่านี้กลับไม่เคยเกิดขึ้น และนั่นทำให้เรายิ่งมีแนวโน้มจะเชื่อใน “ชะตากรรม” บางอย่างของประวัติศาสตร์ อย่างไรก็ตาม หากมองในแง่กลไกของพลังที่ขับเคลื่อนอำนาจ การที่จุลชีพกลับมีบทบาทสนับสนุนการรวมศูนย์ของรัฐในยุคใหม่มากกว่าการขัดขวาง ก็เป็นสิ่งที่น่าพิจารณา ทหารและผู้ตั้งถิ่นฐานจากโลกตะวันตกไม่ได้มีเพียงเทคโนโลยีเป็นแต้มต่อ แต่ยังมี “ภูมิคุ้มกันที่สั่งสมจากประสบการณ์กับโรค” อีกด้วย โรคที่มาพร้อมกับนักสำรวจจากยุโรปจึงกลายเป็น “อาวุธลับ” ที่ทำลายชาวพื้นเมืองก่อนที่ผู้รุกรานจะลงจากเรือด้วยซ้ำ
แม้ว่าจะมีข้อสันนิษฐานว่าซิฟิลิสแพร่จากโลกใหม่กลับไปยังยุโรป แต่ผลกระทบของมันก็จำกัดอยู่ในระดับวัฒนธรรม โดยเฉพาะด้านศีลธรรมทางเพศ ไม่ได้ส่งผลกระทบในระดับการเมืองมหภาคอย่างที่โรคระบาดในยุคกลางเคยทำ เช่น กาฬโรคหรือโรคไข้ทรพิษ เพราะในยุคสมัยใหม่ ระบบอุตสาหกรรมและโครงสร้างทางการแพทย์มีความสามารถในการควบคุมภัยจากจุลชีพได้มากขึ้น ไม่ว่าจะผ่านระบบสุขาภิบาล วัคซีน หรือยาปฏิชีวนะ
อย่างไรก็ดี การปรากฏตัวของโรคเอดส์ และความกังวลเกี่ยวกับไวรัสกลายพันธุ์ในช่วงปลายศตวรรษที่ 20 ได้แสดงให้เห็นว่า จุลชีพอาจไม่ได้เป็น “ปัจจัยรอง” ที่ไร้ฤทธิ์เสมอไป และอาจหวนกลับมาเป็นปัจจัยหลักที่กำหนดแนวทางของอำนาจใหม่อีกครั้งได้ในอนาคต หากมีโรคระบาดใหญ่เกิดขึ้นซึ่งรุนแรงพอที่จะทำลายความสามารถของรัฐในการควบคุมระบบเศรษฐกิจและชีวิตสาธารณะ โครงสร้างของอำนาจอาจสั่นคลอนยิ่งกว่าผลกระทบจากภูมิอากาศหรือภูมิประเทศเสียอีก
ปัญหาคือเราไม่สามารถคาดการณ์จุดเริ่มต้นของเหตุการณ์เหล่านี้ได้อย่างแม่นยำ ไม่มีแบบจำลองใดที่สามารถควบคุมหรือคาดเดาธรรมชาติได้อย่างสมบูรณ์ แม้จะมีความพยายามทางวิทยาศาสตร์และการเฝ้าระวังระดับโลก การที่เรารอดพ้นจากโรคร้ายในอดีตไม่ได้แปลว่าจะรอดได้อีกในอนาคต ความคาดหวังว่าปัจจัยมหภาคในพันปีข้างหน้าจะยังคงเป็น “เทคโนโลยี” ไม่ใช่ “จุลชีพ” จึงเป็นเพียงสมมติฐานที่ตั้งอยู่บนความหวังมากกว่าหลักประกันใด ๆ
และแม้ว่าเทคโนโลยีจะมีบทบาทอย่างล้นเหลือในช่วงห้าศตวรรษที่ผ่านมา แต่บทเรียนจากการปฏิวัติการเกษตรในยุคโบราณก็ยังคงเตือนใจว่า ปัจจัยที่เปลี่ยนแปลงวิถีของอำนาจในระดับรากฐานที่สุดอาจไม่ได้ยิ่งใหญ่หรือก้าวหน้าเสมอไป บางครั้งสิ่งที่ทำให้โลกเปลี่ยนแปลงไปอย่างถาวร ไม่ใช่จักรกลที่ซับซ้อนหรืออาวุธล้ำยุค หากแต่เป็นสิ่งมีชีวิตขนาดเล็กที่เราแทบมองไม่เห็นด้วยตาเปล่า — และมันก็อาจย้อนกลับมามีบทบาทสำคัญอีกครั้งในศตวรรษของเรา.
อย่าลืมว่าหนังสือเล่มนี้เขียนขึ้นในปี 1997 — ยุคที่โลกยังไม่เคยรู้จักกับ COVID-19
บทถัดไปจะพูดถึงเรื่องการปฏิวัติครั้งแรกของ Sapiens การปฏิวัติเกษตรกรรม
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@ 502ab02a:a2860397
2025-04-29 01:20:04PAN... แค่แพนเค้ก หรือ แผนล้อมโลกเรื่องอาหาร เมื่อหมากตัวจริงชื่อ Sebastian Joy
เราได้รู้จักกับคุณ Sebastian Joy กันไปแล้วนะครับ วันนี้เรามาขยายผลกันอีกหน่อย
ถ้าโลกนี้เป็นเกมหมากรุก อาหารคือกระดานที่ทุกตัวหมากต้องเหยียบเดิน และใครที่วางหมากอาหารได้...ก็วางโลกได้เหมือนกัน
ปี 2018 มีโครงการหนึ่งถือกำเนิดขึ้นในเยอรมนีอย่างเงียบๆ ชื่อว่า Physicians Association for Nutrition (PAN) เบื้องหน้าเหมือนเป็นมูลนิธิการกุศล ตั้งขึ้นมาเพื่อ "ช่วยให้หมอเข้าใจเรื่องโภชนาการจากพืช" แต่ถ้าเปิดแว่นขยายส่องให้ดีๆ มันคือหนึ่งในฟันเฟืองสำคัญของแผนเปลี่ยนอนาคตอาหารโลกจาก Animal-Based ไปเป็น Plant-Based ที่เป็น lab plant based ที่ไม่ใช่อาหารธรรมชาติแบบหลักแก่นที่ Vegan สืบทอดกันมา โดยอ้างเรื่อง "สุขภาพ" และ "สิ่งแวดล้อม" เป็นฉากหน้า
PAN นั้นเสมือนเป็นลูกสมุนตัวกลั่นของคนที่ชื่อ Sebastian Joy ชายหนุ่มสายโปรโมทแนว Vegan ที่ก่อนหน้านั้นก่อตั้งองค์กร ProVeg International ซึ่งมีสายสัมพันธ์กับพวก Start-up อาหารทางเลือก (ไม่ว่าจะเป็นเนื้อปลอม เนื้อพืชดีเอนเอ นมพืชที่มาจากจุลินทรีย์ ไปจนถึงการส่งเสริมวัตถุดิบจากแบคทีเรีย โรงงาน และห้องแลบ) แล้ว ProVeg ไม่ได้ทำงานเดี่ยวๆ นะจ๊ะ... เบื้องหลังเชื่อมโยงกับเครือข่ายที่หนุน World Economic Forum (WEF) และแนวคิด Great Reset ที่อยาก "รีเซ็ต" วิธีการกินของคนทั้งโลก โดยให้อาหารเป็น Plant-Based แบบ lab created และ Meat Lab-Based เป็นหลัก
ส่วน PAN ถูกใช้เป็น "หมากที่แต่งตัวเป็นหมอ" เพื่อเดินเกมไปสู่การแทรกแซงนโยบายประเทศต่างๆ ผ่านช่องทาง "สาธารณสุข" และ "การศึกษาแพทย์" เพื่อมาเป็นกำลังหลักให้ในแผนงาน
เรามาดูตัวอย่างผลงานเด่นของ PAN กันครับ 1. ผลักดันให้รวม Plant-Based เข้าไปในหลักสูตรแพทย์และพยาบาล (โดยใช้เหตุผลว่า "หมอต้องรู้จักอาหารเพื่อสุขภาพ") 2. ช่วยรณรงค์ให้โรงพยาบาล โรงเรียน และมหาวิทยาลัย เปลี่ยนเมนูอาหารเป็น Plant-Based 3. สนับสนุนงานวิจัย และโครงการ เช่น Green Food Experience ที่กดดันให้ภาคธุรกิจและภาครัฐบาลหันมาทำตาม "แนวทางอาหารยั่งยืน" แบบที่ PAN และพรรคพวกกำหนด 4. มีสถานะ "Observer" ในองค์การสหประชาชาติ (UN) เพื่อเสนอความคิดเห็นในการกำหนดนโยบายสาธารณสุขและสิ่งแวดล้อมระดับโลก
และเบื้องหลังอีกชั้นที่น่าสนใจ... Sebastian Joy มีความสัมพันธ์ลึกซึ้งกับวงการ Start-up อาหารใหม่ๆ ที่พยายามตีตลาด Plant-Based และ Lab-Grown Food อย่างเช่น Perfect Day, Beyond Meat, Mosa Meat ฯลฯ ผ่านการโปรโมท "โภชนาการจากพืชเพื่อสุขภาพที่ดีกว่า" โดยใช้ PAN เป็นเครื่องมือให้ดู "มีอำนาจทางวิชาการ" มากขึ้น
หรือถ้าให้พูดง่ายๆ คือ สร้างสนามแข่ง แล้วจับมือกับนักแข่งที่ตัวเองลงทุนไว้ PAN ดูเหมือนเป็นองค์กรกลางๆ ใสๆ แต่มันเชื่อมโยงกับโครงข่าย NGO และบริษัทเอกชนที่มุ่งแปลงร่างอาหารโลกอยู่เบื้องหลัง การที่ PAN ผลักดันนโยบายระดับประเทศ และแทรกซึมในระบบการศึกษา หมายความว่าอนาคตคนรุ่นใหม่จะถูกปลูกฝังแนวคิด "เนื้อสัตว์ไม่ดี" โดยไม่ทันรู้ตัว
แล้วมันเกี่ยวอะไรกับเรา? จินตนาการดูครับว่า - ถ้าวันหนึ่งโรงเรียนของลูกเรามีแต่เมนูถั่วเหลือง ซีเรียล นมโอ๊ต หรือ ไอศกรีมเวย์จากจุลินทรีย์ และห้ามเสิร์ฟเนื้อสัตว์ด้วยสารพัดเหตุผล เช่น เนื้อปนเปื้อนง่าย เนื้อทำให้เป็นมะเร็ง หรือแม้แต่สอนเด็กว่า เนื้อคือตัวการทำลายสิ่งแวดล้อมด้วย มีเทน นั่นอาจเป็นผลลัพธ์จากงานเบื้องหลังของ PAN - ถ้าวันหนึ่งนโยบายอาหารของประเทศเน้นลดเนื้อสัตว์ อ้างสุขภาพ อ้างสิ่งแวดล้อม อ้างโรคระบาด อ้างกฎแห่ง DNA ที่ถูกจดสิทธิบัตร แล้วโปรโมทเนื้อปลอมแทน นั่นอาจเป็นรอยเท้าของ Sebastian Joy ที่เดินมาก่อนแล้ว - ถ้าวันหนึ่งหมอจำนวนมากเชื่อว่า “เนื้อสัตว์คือตัวร้ายที่แพร่มะเร็งหรือทำให้สุขภาพเสีย” โดยไม่มีการตั้งคำถาม นั่นคือชัยชนะของหมากตัวนี้
ในขณะที่คนส่วนใหญ่คิดว่ากำลังเลือกอาหารเอง หรือ คิดว่าฉันกิน plant base / vegan เพราะรักโลก รักสุขภาพ แต่จริงๆ แล้วมีมือที่มองไม่เห็นกำหนด "ตัวเลือก" ไว้แล้วเรียบร้อย เพราะทั้งหมดมันไม่ได้เป็นอาหารธรรมชาติ มันคืออาหาร "สร้าง" ที่ไม่มีสัตว์, มันคืออาหาร "สร้าง" ที่ต้อง "สร้าง" มาจากโรงงาน แล้วเราต้อง "ซื้อ" มากินเท่านั้น ถ้าไม่สร้าง local ให้แข็งแรง อย่าหลงไปตามความสวยงามของการรักโลกในมุมเดียว เราอาจจะไม่สามารถปลูกพืชมาเป็นอาหารเองได้ เราอาจไม่สามารถเลี้ยงสัตว์เพื่อกินเองได้
PAN ไม่ใช่แค่องค์กรให้ความรู้ด้านโภชนาการ / PAN คือเครื่องมือในกระดานหมากรุกที่กำลังจัดการ "ตั้งโปรแกรมใหม่" ให้คนทั้งโลกกินตามแบบที่นายทุนและเครือข่ายเบื้องหลังเขียนบทไว้ และชายที่ชื่อ Sebastian Joy นี่แหละ...คือหนึ่งในผู้ถือหมากที่ยิ้มอยู่หลังม่าน
อาหารแห่งอนาคต มีทางเดินเหลือไว้ให้ เกษตรกร old school บ้างไหม สนธิสัญญาต่างๆเรื่องเมล็ดพันธุ์ เหลือทางเดินไว้ให้เกษตรกรบ้างไหม หรือสุดท้าย เราจะไม่มีไดเอทให้เลือก ให้ทะเลาะกัน เพราะสุดท้าย เราต่างต้องกินอาหารจากโรงงานเหมือนกันหมด บทความนี้คงจะเป็นได้แค่เพียง การตั้งคำถามขึ้นมาไว้ แต่ไม่มีคำตอบ ว่าเรากำลังโดนอ้าง plant based food มาเคลือบความเป็น อาหารโรงงาน (Plant Food) หรือเปล่าเพราะวันนี้หลายคนอาจมองว่าเป็นการตื่นตูม คิดมาก หรือแม้แต่ เราเลือกได้แหละ ก็ได้ครับ
ผมไม่ได้มีปัญหากับสายพืชล้วน ไม่ว่าจะเจ วีแกน แพลนท์เบส เพราะถ้ากินเป็น มองสารอาหารเป็น จัดการ anti nutrient ได้ดี มันก็ดีสำหรับคนนั้น แต่ซีรีส์นี้สำคัญที่ว่า plant based food is not PLANT food อาหารจากพืชไม่ใช่อาหารจากโรงงานครับ
ก่อนถึงวันที่เราจะไม่มีสิทธิ์แม้แต่จะเลือก #pirateketo #กูต้องรู้มั๊ย #ม้วนหางสิลูก #siamstr
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@ 1bda7e1f:bb97c4d9
2025-01-02 05:19:08Tldr
- Nostr is an open and interoperable protocol
- You can integrate it with workflow automation tools to augment your experience
- n8n is a great low/no-code workflow automation tool which you can host yourself
- Nostrobots allows you to integrate Nostr into n8n
- In this blog I create some workflow automations for Nostr
- A simple form to delegate posting notes
- Push notifications for mentions on multiple accounts
- Push notifications for your favourite accounts when they post a note
- All workflows are provided as open source with MIT license for you to use
Inter-op All The Things
Nostr is a new open social protocol for the internet. This open nature exciting because of the opportunities for interoperability with other technologies. In Using NFC Cards with Nostr I explored the
nostr:
URI to launch Nostr clients from a card tap.The interoperability of Nostr doesn't stop there. The internet has many super-powers, and Nostr is open to all of them. Simply, there's no one to stop it. There is no one in charge, there are no permissioned APIs, and there are no risks of being de-platformed. If you can imagine technologies that would work well with Nostr, then any and all of them can ride on or alongside Nostr rails.
My mental model for why this is special is Google Wave ~2010. Google Wave was to be the next big platform. Lars was running it and had a big track record from Maps. I was excited for it. Then, Google pulled the plug. And, immediately all the time and capital invested in understanding and building on the platform was wasted.
This cannot happen to Nostr, as there is no one to pull the plug, and maybe even no plug to pull.
So long as users demand Nostr, Nostr will exist, and that is a pretty strong guarantee. It makes it worthwhile to invest in bringing Nostr into our other applications.
All we need are simple ways to plug things together.
Nostr and Workflow Automation
Workflow automation is about helping people to streamline their work. As a user, the most common way I achieve this is by connecting disparate systems together. By setting up one system to trigger another or to move data between systems, I can solve for many different problems and become way more effective.
n8n for workflow automation
Many workflow automation tools exist. My favourite is n8n. n8n is a low/no-code workflow automation platform which allows you to build all kinds of workflows. You can use it for free, you can self-host it, it has a user-friendly UI and useful API. Vs Zapier it can be far more elaborate. Vs Make.com I find it to be more intuitive in how it abstracts away the right parts of the code, but still allows you to code when you need to.
Most importantly you can plug anything into n8n: You have built-in nodes for specific applications. HTTP nodes for any other API-based service. And community nodes built by individual community members for any other purpose you can imagine.
Eating my own dogfood
It's very clear to me that there is a big design space here just demanding to be explored. If you could integrate Nostr with anything, what would you do?
In my view the best way for anyone to start anything is by solving their own problem first (aka "scratching your own itch" and "eating your own dogfood"). As I get deeper into Nostr I find myself controlling multiple Npubs – to date I have a personal Npub, a brand Npub for a community I am helping, an AI assistant Npub, and various testing Npubs. I need ways to delegate access to those Npubs without handing over the keys, ways to know if they're mentioned, and ways to know if they're posting.
I can build workflows with n8n to solve these issues for myself to start with, and keep expanding from there as new needs come up.
Running n8n with Nostrobots
I am mostly non-technical with a very helpful AI. To set up n8n to work with Nostr and operate these workflows should be possible for anyone with basic technology skills.
- I have a cheap VPS which currently runs my HAVEN Nostr Relay and Albyhub Lightning Node in Docker containers,
- My objective was to set up n8n to run alongside these in a separate Docker container on the same server, install the required nodes, and then build and host my workflows.
Installing n8n
Self-hosting n8n could not be easier. I followed n8n's Docker-Compose installation docs–
- Install Docker and Docker-Compose if you haven't already,
- Create your
docker-compose.yml
and.env
files from the docs, - Create your data folder
sudo docker volume create n8n_data
, - Start your container with
sudo docker compose up -d
, - Your n8n instance should be online at port
5678
.
n8n is free to self-host but does require a license. Enter your credentials into n8n to get your free license key. You should now have access to the Workflow dashboard and can create and host any kind of workflows from there.
Installing Nostrobots
To integrate n8n nicely with Nostr, I used the Nostrobots community node by Ocknamo.
In n8n parlance a "node" enables certain functionality as a step in a workflow e.g. a "set" node sets a variable, a "send email" node sends an email. n8n comes with all kinds of "official" nodes installed by default, and Nostr is not amongst them. However, n8n also comes with a framework for community members to create their own "community" nodes, which is where Nostrobots comes in.
You can only use a community node in a self-hosted n8n instance (which is what you have if you are running in Docker on your own server, but this limitation does prevent you from using n8n's own hosted alternative).
To install a community node, see n8n community node docs. From your workflow dashboard–
- Click the "..." in the bottom left corner beside your username, and click "settings",
- Cilck "community nodes" left sidebar,
- Click "Install",
- Enter the "npm Package Name" which is
n8n-nodes-nostrobots
, - Accept the risks and click "Install",
- Nostrobots is now added to your n8n instance.
Using Nostrobots
Nostrobots gives you nodes to help you build Nostr-integrated workflows–
- Nostr Write – for posting Notes to the Nostr network,
- Nostr Read – for reading Notes from the Nostr network, and
- Nostr Utils – for performing certain conversions you may need (e.g. from bech32 to hex).
Nostrobots has good documentation on each node which focuses on simple use cases.
Each node has a "convenience mode" by default. For example, the "Read" Node by default will fetch Kind 1 notes by a simple filter, in Nostrobots parlance a "Strategy". For example, with Strategy set to "Mention" the node will accept a pubkey and fetch all Kind 1 notes that Mention the pubkey within a time period. This is very good for quick use.
What wasn't clear to me initially (until Ocknamo helped me out) is that advanced use cases are also possible.
Each node also has an advanced mode. For example, the "Read" Node can have "Strategy" set to "RawFilter(advanced)". Now the node will accept json (anything you like that complies with NIP-01). You can use this to query Notes (Kind 1) as above, and also Profiles (Kind 0), Follow Lists (Kind 3), Reactions (Kind 7), Zaps (Kind 9734/9735), and anything else you can think of.
Creating and adding workflows
With n8n and Nostrobots installed, you can now create or add any kind of Nostr Workflow Automation.
- Click "Add workflow" to go to the workflow builder screen,
- If you would like to build your own workflow, you can start with adding any node. Click "+" and see what is available. Type "Nostr" to explore the Nostrobots nodes you have added,
- If you would like to add workflows that someone else has built, click "..." in the top right. Then click "import from URL" and paste in the URL of any workflow you would like to use (including the ones I share later in this article).
Nostr Workflow Automations
It's time to build some things!
A simple form to post a note to Nostr
I started very simply. I needed to delegate the ability to post to Npubs that I own in order that a (future) team can test things for me. I don't want to worry about managing or training those people on how to use keys, and I want to revoke access easily.
I needed a basic form with credentials that posted a Note.
For this I can use a very simple workflow–
- A n8n Form node – Creates a form for users to enter the note they wish to post. Allows for the form to be protected by a username and password. This node is the workflow "trigger" so that the workflow runs each time the form is submitted.
- A Set node – Allows me to set some variables, in this case I set the relays that I intend to use. I typically add a Set node immediately following the trigger node, and put all the variables I need in this. It helps to make the workflows easier to update and maintain.
- A Nostr Write node (from Nostrobots) – Writes a Kind-1 note to the Nostr network. It accepts Nostr credentials, the output of the Form node, and the relays from the Set node, and posts the Note to those relays.
Once the workflow is built, you can test it with the testing form URL, and set it to "Active" to use the production form URL. That's it. You can now give posting access to anyone for any Npub. To revoke access, simply change the credentials or set to workflow to "Inactive".
It may also be the world's simplest Nostr client.
You can find the Nostr Form to Post a Note workflow here.
Push notifications on mentions and new notes
One of the things Nostr is not very good at is push notifications. Furthermore I have some unique itches to scratch. I want–
- To make sure I never miss a note addressed to any of my Npubs – For this I want a push notification any time any Nostr user mentions any of my Npubs,
- To make sure I always see all notes from key accounts – For this I need a push notification any time any of my Npubs post any Notes to the network,
- To get these notifications on all of my devices – Not just my phone where my Nostr regular client lives, but also on each of my laptops to suit wherever I am working that day.
I needed to build a Nostr push notifications solution.
To build this workflow I had to string a few ideas together–
- Triggering the node on a schedule – Nostrobots does not include a trigger node. As every workflow starts with a trigger we needed a different method. I elected to run the workflow on a schedule of every 10-minutes. Frequent enough to see Notes while they are hot, but infrequent enough to not burden public relays or get rate-limited,
- Storing a list of Npubs in a Nostr list – I needed a way to store the list of Npubs that trigger my notifications. I initially used an array defined in the workflow, this worked fine. Then I decided to try Nostr lists (NIP-51, kind 30000). By defining my list of Npubs as a list published to Nostr I can control my list from within a Nostr client (e.g. Listr.lol or Nostrudel.ninja). Not only does this "just work", but because it's based on Nostr lists automagically Amethyst client allows me to browse that list as a Feed, and everyone I add gets notified in their Mentions,
- Using specific relays – I needed to query the right relays, including my own HAVEN relay inbox for notes addressed to me, and wss://purplepag.es for Nostr profile metadata,
- Querying Nostr events (with Nostrobots) – I needed to make use of many different Nostr queries and use quite a wide range of what Nostrobots can do–
- I read the EventID of my Kind 30000 list, to return the desired pubkeys,
- For notifications on mentions, I read all Kind 1 notes that mention that pubkey,
- For notifications on new notes, I read all Kind 1 notes published by that pubkey,
- Where there are notes, I read the Kind 0 profile metadata event of that pubkey to get the displayName of the relevant Npub,
- I transform the EventID into a Nevent to help clients find it.
- Using the Nostr URI – As I did with my NFC card article, I created a link with the
nostr:
URI prefix so that my phone's native client opens the link by default, - Push notifications solution – I needed a push notifications solution. I found many with n8n integrations and chose to go with Pushover which supports all my devices, has a free trial, and is unfairly cheap with a $5-per-device perpetual license.
Once the workflow was built, lists published, and Pushover installed on my phone, I was fully set up with push notifications on Nostr. I have used these workflows for several weeks now and made various tweaks as I went. They are feeling robust and I'd welcome you to give them a go.
You can find the Nostr Push Notification If Mentioned here and If Posts a Note here.
In speaking with other Nostr users while I was building this, there are all kind of other needs for push notifications too – like on replies to a certain bookmarked note, or when a followed Npub starts streaming on zap.stream. These are all possible.
Use my workflows
I have open sourced all my workflows at my Github with MIT license and tried to write complete docs, so that you can import them into your n8n and configure them for your own use.
To import any of my workflows–
- Click on the workflow of your choice, e.g. "Nostr_Push_Notify_If_Mentioned.json",
- Click on the "raw" button to view the raw JSON, ex any Github page layout,
- Copy that URL,
- Enter that URL in the "import from URL" dialog mentioned above.
To configure them–
- Prerequisites, credentials, and variables are all stated,
- In general any variables required are entered into a Set Node that follows the trigger node,
- Pushover has some extra setup but is very straightforward and documented in the workflow.
What next?
Over my first four blogs I explored creating a good Nostr setup with Vanity Npub, Lightning Payments, Nostr Addresses at Your Domain, and Personal Nostr Relay.
Then in my latest two blogs I explored different types of interoperability with NFC cards and now n8n Workflow Automation.
Thinking ahead n8n can power any kind of interoperability between Nostr and any other legacy technology solution. On my mind as I write this:
- Further enhancements to posting and delegating solutions and forms (enhanced UI or different note kinds),
- Automated or scheduled posting (such as auto-liking everything Lyn Alden posts),
- Further enhancements to push notifications, on new and different types of events (such as notifying me when I get a new follower, on replies to certain posts, or when a user starts streaming),
- All kinds of bridges, such as bridging notes to and from Telegram, Slack, or Campfire. Or bridging RSS or other event feeds to Nostr,
- All kinds of other automation (such as BlackCoffee controlling a coffee machine),
- All kinds of AI Assistants and Agents,
In fact I have already released an open source workflow for an AI Assistant, and will share more about that in my next blog.
Please be sure to let me know if you think there's another Nostr topic you'd like to see me tackle.
GM Nostr.
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@ 4db2f229:205fed9f
2025-04-28 23:25:16https://www.nexusmods.com/newvegas/mods/80258
If you manage to get it up to date / uncorrupt the data, I give you full liberties to:
- The model itself
- Its XMF and/or XML skeleton
- Patching it to be compatible with any other gun mods
- other fixes
- and full credit handed over to you
I think this has honestly been abandoned by it's original developer, and since I am just hanging onto the file? I decided it'd be better maintained in someone elses hands, and with community much more responsible than Nexus. Honestly if I did not archive this mod? It would of been vaporware.
But in it's current state it's not fit for being playable. I did manage to save media of when it was playable however.
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@ 3f770d65:7a745b24
2024-12-31 17:03:46Here are my predictions for Nostr in 2025:
Decentralization: The outbox and inbox communication models, sometimes referred to as the Gossip model, will become the standard across the ecosystem. By the end of 2025, all major clients will support these models, providing seamless communication and enhanced decentralization. Clients that do not adopt outbox/inbox by then will be regarded as outdated or legacy systems.
Privacy Standards: Major clients such as Damus and Primal will move away from NIP-04 DMs, adopting more secure protocol possibilities like NIP-17 or NIP-104. These upgrades will ensure enhanced encryption and metadata protection. Additionally, NIP-104 MLS tools will drive the development of new clients and features, providing users with unprecedented control over the privacy of their communications.
Interoperability: Nostr's ecosystem will become even more interconnected. Platforms like the Olas image-sharing service will expand into prominent clients such as Primal, Damus, Coracle, and Snort, alongside existing integrations with Amethyst, Nostur, and Nostrudel. Similarly, audio and video tools like Nostr Nests and Zap.stream will gain seamless integration into major clients, enabling easy participation in live events across the ecosystem.
Adoption and Migration: Inspired by early pioneers like Fountain and Orange Pill App, more platforms will adopt Nostr for authentication, login, and social systems. In 2025, a significant migration from a high-profile application platform with hundreds of thousands of users will transpire, doubling Nostr’s daily activity and establishing it as a cornerstone of decentralized technologies.
-
@ e97aaffa:2ebd765d
2024-12-31 16:47:12Último dia do ano, momento para tirar o pó da bola de cristal, para fazer reflexões, previsões e desejos para o próximo ano e seguintes.
Ano após ano, o Bitcoin evoluiu, foi ultrapassando etapas, tornou-se cada vez mais mainstream. Está cada vez mais difícil fazer previsões sobre o Bitcoin, já faltam poucas barreiras a serem ultrapassadas e as que faltam são altamente complexas ou tem um impacto profundo no sistema financeiro ou na sociedade. Estas alterações profundas tem que ser realizadas lentamente, porque uma alteração rápida poderia resultar em consequências terríveis, poderia provocar um retrocesso.
Código do Bitcoin
No final de 2025, possivelmente vamos ter um fork, as discussões sobre os covenants já estão avançadas, vão acelerar ainda mais. Já existe um consenso relativamente alto, a favor dos covenants, só falta decidir que modelo será escolhido. Penso que até ao final do ano será tudo decidido.
Depois dos covenants, o próximo foco será para a criptografia post-quantum, que será o maior desafio que o Bitcoin enfrenta. Criar uma criptografia segura e que não coloque a descentralização em causa.
Espero muito de Ark, possivelmente a inovação do ano, gostaria de ver o Nostr a furar a bolha bitcoinheira e que o Cashu tivesse mais reconhecimento pelos bitcoiners.
Espero que surjam avanços significativos no BitVM2 e BitVMX.
Não sei o que esperar das layer 2 de Bitcoin, foram a maior desilusão de 2024. Surgiram com muita força, mas pouca coisa saiu do papel, foi uma mão cheia de nada. Uma parte dos projetos caiu na tentação da shitcoinagem, na criação de tokens, que tem um único objetivo, enriquecer os devs e os VCs.
Se querem ser levados a sério, têm que ser sérios.
“À mulher de César não basta ser honesta, deve parecer honesta”
Se querem ter o apoio dos bitcoiners, sigam o ethos do Bitcoin.
Neste ponto a atitude do pessoal da Ark é exemplar, em vez de andar a chorar no Twitter para mudar o código do Bitcoin, eles colocaram as mãos na massa e criaram o protocolo. É claro que agora está meio “coxo”, funciona com uma multisig ou com os covenants na Liquid. Mas eles estão a criar um produto, vão demonstrar ao mercado que o produto é bom e útil. Com a adoção, a comunidade vai perceber que o Ark necessita dos covenants para melhorar a interoperabilidade e a soberania.
É este o pensamento certo, que deveria ser seguido pelos restantes e futuros projetos. É seguir aquele pensamento do J.F. Kennedy:
“Não perguntem o que é que o vosso país pode fazer por vocês, perguntem o que é que vocês podem fazer pelo vosso país”
Ou seja, não fiquem à espera que o bitcoin mude, criem primeiro as inovações/tecnologia, ganhem adoção e depois demonstrem que a alteração do código camada base pode melhorar ainda mais o vosso projeto. A necessidade é que vai levar a atualização do código.
Reservas Estratégicas de Bitcoin
Bancos centrais
Com a eleição de Trump, emergiu a ideia de uma Reserva Estratégia de Bitcoin, tornou este conceito mainstream. Foi um pivot, a partir desse momento, foram enumerados os políticos de todo o mundo a falar sobre o assunto.
A Senadora Cynthia Lummis foi mais além e propôs um programa para adicionar 200 mil bitcoins à reserva ao ano, até 1 milhão de Bitcoin. Só que isto está a criar uma enorme expectativa na comunidade, só que pode resultar numa enorme desilusão. Porque no primeiro ano, o Trump em vez de comprar os 200 mil, pode apenas adicionar na reserva, os 198 mil que o Estado já tem em sua posse. Se isto acontecer, possivelmente vai resultar numa forte queda a curto prazo. Na minha opinião os bancos centrais deveriam seguir o exemplo de El Salvador, fazer um DCA diário.
Mais que comprar bitcoin, para mim, o mais importante é a criação da Reserva, é colocar o Bitcoin ao mesmo nível do ouro, o impacto para o resto do mundo será tremendo, a teoria dos jogos na sua plenitude. Muitos outros bancos centrais vão ter que comprar, para não ficarem atrás, além disso, vai transmitir uma mensagem à generalidade da população, que o Bitcoin é “afinal é algo seguro, com valor”.
Mas não foi Trump que iniciou esta teoria dos jogos, mas sim foi a primeira vítima dela. É o próprio Trump que o admite, que os EUA necessitam da reserva para não ficar atrás da China. Além disso, desde que os EUA utilizaram o dólar como uma arma, com sanção contra a Rússia, surgiram boatos de que a Rússia estaria a utilizar o Bitcoin para transações internacionais. Que foram confirmados recentemente, pelo próprio governo russo. Também há poucos dias, ainda antes deste reconhecimento público, Putin elogiou o Bitcoin, ao reconhecer que “Ninguém pode proibir o bitcoin”, defendendo como uma alternativa ao dólar. A narrativa está a mudar.
Já existem alguns países com Bitcoin, mas apenas dois o fizeram conscientemente (El Salvador e Butão), os restantes têm devido a apreensões. Hoje são poucos, mas 2025 será o início de uma corrida pelos bancos centrais. Esta corrida era algo previsível, o que eu não esperava é que acontecesse tão rápido.
Empresas
A criação de reservas estratégicas não vai ficar apenas pelos bancos centrais, também vai acelerar fortemente nas empresas em 2025.
Mas as empresas não vão seguir a estratégia do Saylor, vão comprar bitcoin sem alavancagem, utilizando apenas os tesouros das empresas, como uma proteção contra a inflação. Eu não sou grande admirador do Saylor, prefiro muito mais, uma estratégia conservadora, sem qualquer alavancagem. Penso que as empresas vão seguir a sugestão da BlackRock, que aconselha um alocações de 1% a 3%.
Penso que 2025, ainda não será o ano da entrada das 6 magníficas (excepto Tesla), será sobretudo empresas de pequena e média dimensão. As magníficas ainda tem uma cota muito elevada de shareholders com alguma idade, bastante conservadores, que têm dificuldade em compreender o Bitcoin, foi o que aconteceu recentemente com a Microsoft.
Também ainda não será em 2025, talvez 2026, a inclusão nativamente de wallet Bitcoin nos sistema da Apple Pay e da Google Pay. Seria um passo gigante para a adoção a nível mundial.
ETFs
Os ETFs para mim são uma incógnita, tenho demasiadas dúvidas, como será 2025. Este ano os inflows foram superiores a 500 mil bitcoins, o IBIT foi o lançamento de ETF mais bem sucedido da história. O sucesso dos ETFs, deve-se a 2 situações que nunca mais se vão repetir. O mercado esteve 10 anos à espera pela aprovação dos ETFs, a procura estava reprimida, isso foi bem notório nos primeiros meses, os inflows foram brutais.
Também se beneficiou por ser um mercado novo, não existia orderbook de vendas, não existia um mercado interno, praticamente era só inflows. Agora o mercado já estabilizou, a maioria das transações já são entre clientes dos próprios ETFs. Agora só uma pequena percentagem do volume das transações diárias vai resultar em inflows ou outflows.
Estes dois fenómenos nunca mais se vão repetir, eu não acredito que o número de inflows em BTC supere os número de 2024, em dólares vai superar, mas em btc não acredito que vá superar.
Mas em 2025 vão surgir uma infindável quantidade de novos produtos, derivativos, novos ETFs de cestos com outras criptos ou cestos com ativos tradicionais. O bitcoin será adicionado em produtos financeiros já existentes no mercado, as pessoas vão passar a deter bitcoin, sem o saberem.
Com o fim da operação ChokePoint 2.0, vai surgir uma nova onda de adoção e de produtos financeiros. Possivelmente vamos ver bancos tradicionais a disponibilizar produtos ou serviços de custódia aos seus clientes.
Eu adoraria ver o crescimento da adoção do bitcoin como moeda, só que a regulamentação não vai ajudar nesse processo.
Preço
Eu acredito que o topo deste ciclo será alcançado no primeiro semestre, posteriormente haverá uma correção. Mas desta vez, eu acredito que a correção será muito menor que as anteriores, inferior a 50%, esta é a minha expectativa. Espero estar certo.
Stablecoins de dólar
Agora saindo um pouco do universo do Bitcoin, acho importante destacar as stablecoins.
No último ciclo, eu tenho dividido o tempo, entre continuar a estudar o Bitcoin e estudar o sistema financeiro, as suas dinâmicas e o comportamento humano. Isto tem sido o meu foco de reflexão, imaginar a transformação que o mundo vai sofrer devido ao padrão Bitcoin. É uma ilusão acreditar que a transição de um padrão FIAT para um padrão Bitcoin vai ser rápida, vai existir um processo transitório que pode demorar décadas.
Com a re-entrada de Trump na Casa Branca, prometendo uma política altamente protecionista, vai provocar uma forte valorização do dólar, consequentemente as restantes moedas do mundo vão derreter. Provocando uma inflação generalizada, gerando uma corrida às stablecoins de dólar nos países com moedas mais fracas. Trump vai ter uma política altamente expansionista, vai exportar dólares para todo o mundo, para financiar a sua própria dívida. A desigualdade entre os pobres e ricos irá crescer fortemente, aumentando a possibilidade de conflitos e revoltas.
“Casa onde não há pão, todos ralham e ninguém tem razão”
Será mais lenha, para alimentar a fogueira, vai gravar os conflitos geopolíticos já existentes, ficando as sociedade ainda mais polarizadas.
Eu acredito que 2025, vai haver um forte crescimento na adoção das stablecoins de dólares, esse forte crescimento vai agravar o problema sistémico que são as stablecoins. Vai ser o início do fim das stablecoins, pelo menos, como nós conhecemos hoje em dia.
Problema sistémico
O sistema FIAT não nasceu de um dia para outro, foi algo que foi construído organicamente, ou seja, foi evoluindo ao longo dos anos, sempre que havia um problema/crise, eram criadas novas regras ou novas instituições para minimizar os problemas. Nestes quase 100 anos, desde os acordos de Bretton Woods, a evolução foram tantas, tornaram o sistema financeiro altamente complexo, burocrático e nada eficiente.
Na prática é um castelo de cartas construído sobre outro castelo de cartas e que por sua vez, foi construído sobre outro castelo de cartas.
As stablecoins são um problema sistémico, devido às suas reservas em dólares e o sistema financeiro não está preparado para manter isso seguro. Com o crescimento das reservas ao longo dos anos, foi se agravando o problema.
No início a Tether colocava as reservas em bancos comerciais, mas com o crescimento dos dólares sob gestão, criou um problema nos bancos comerciais, devido à reserva fracionária. Essas enormes reservas da Tether estavam a colocar em risco a própria estabilidade dos bancos.
A Tether acabou por mudar de estratégia, optou por outros ativos, preferencialmente por títulos do tesouro/obrigações dos EUA. Só que a Tether continua a crescer e não dá sinais de abrandamento, pelo contrário.
Até o próprio mundo cripto, menosprezava a gravidade do problema da Tether/stablecoins para o resto do sistema financeiro, porque o marketcap do cripto ainda é muito pequeno. É verdade que ainda é pequeno, mas a Tether não o é, está no top 20 dos maiores detentores de títulos do tesouros dos EUA e está ao nível dos maiores bancos centrais do mundo. Devido ao seu tamanho, está a preocupar os responsáveis/autoridades/reguladores dos EUA, pode colocar em causa a estabilidade do sistema financeiro global, que está assente nessas obrigações.
Os títulos do tesouro dos EUA são o colateral mais utilizado no mundo, tanto por bancos centrais, como por empresas, é a charneira da estabilidade do sistema financeiro. Os títulos do tesouro são um assunto muito sensível. Na recente crise no Japão, do carry trade, o Banco Central do Japão tentou minimizar a desvalorização do iene através da venda de títulos dos EUA. Esta operação, obrigou a uma viagem de emergência, da Secretaria do Tesouro dos EUA, Janet Yellen ao Japão, onde disponibilizou liquidez para parar a venda de títulos por parte do Banco Central do Japão. Essa forte venda estava desestabilizando o mercado.
Os principais detentores de títulos do tesouros são institucionais, bancos centrais, bancos comerciais, fundo de investimento e gestoras, tudo administrado por gestores altamente qualificados, racionais e que conhecem a complexidade do mercado de obrigações.
O mundo cripto é seu oposto, é naife com muita irracionalidade e uma forte pitada de loucura, na sua maioria nem faz a mínima ideia como funciona o sistema financeiro. Essa irracionalidade pode levar a uma “corrida bancária”, como aconteceu com o UST da Luna, que em poucas horas colapsou o projeto. Em termos de escala, a Luna ainda era muito pequena, por isso, o problema ficou circunscrito ao mundo cripto e a empresas ligadas diretamente ao cripto.
Só que a Tether é muito diferente, caso exista algum FUD, que obrigue a Tether a desfazer-se de vários biliões ou dezenas de biliões de dólares em títulos num curto espaço de tempo, poderia provocar consequências terríveis em todo o sistema financeiro. A Tether é grande demais, é já um problema sistémico, que vai agravar-se com o crescimento em 2025.
Não tenham dúvidas, se existir algum problema, o Tesouro dos EUA vai impedir a venda dos títulos que a Tether tem em sua posse, para salvar o sistema financeiro. O problema é, o que vai fazer a Tether, se ficar sem acesso às venda das reservas, como fará o redeem dos dólares?
Como o crescimento do Tether é inevitável, o Tesouro e o FED estão com um grande problema em mãos, o que fazer com o Tether?
Mas o problema é que o atual sistema financeiro é como um curto cobertor: Quanto tapas a cabeça, destapas os pés; Ou quando tapas os pés, destapas a cabeça. Ou seja, para resolver o problema da guarda reservas da Tether, vai criar novos problemas, em outros locais do sistema financeiro e assim sucessivamente.
Conta mestre
Uma possível solução seria dar uma conta mestre à Tether, dando o acesso direto a uma conta no FED, semelhante à que todos os bancos comerciais têm. Com isto, a Tether deixaria de necessitar os títulos do tesouro, depositando o dinheiro diretamente no banco central. Só que isto iria criar dois novos problemas, com o Custodia Bank e com o restante sistema bancário.
O Custodia Bank luta há vários anos contra o FED, nos tribunais pelo direito a ter licença bancária para um banco com full-reserves. O FED recusou sempre esse direito, com a justificativa que esse banco, colocaria em risco toda a estabilidade do sistema bancário existente, ou seja, todos os outros bancos poderiam colapsar. Perante a existência em simultâneo de bancos com reserva fracionária e com full-reserves, as pessoas e empresas iriam optar pelo mais seguro. Isso iria provocar uma corrida bancária, levando ao colapso de todos os bancos com reserva fracionária, porque no Custodia Bank, os fundos dos clientes estão 100% garantidos, para qualquer valor. Deixaria de ser necessário limites de fundos de Garantia de Depósitos.
Eu concordo com o FED nesse ponto, que os bancos com full-reserves são uma ameaça a existência dos restantes bancos. O que eu discordo do FED, é a origem do problema, o problema não está nos bancos full-reserves, mas sim nos que têm reserva fracionária.
O FED ao conceder uma conta mestre ao Tether, abre um precedente, o Custodia Bank irá o aproveitar, reclamando pela igualdade de direitos nos tribunais e desta vez, possivelmente ganhará a sua licença.
Ainda há um segundo problema, com os restantes bancos comerciais. A Tether passaria a ter direitos similares aos bancos comerciais, mas os deveres seriam muito diferentes. Isto levaria os bancos comerciais aos tribunais para exigir igualdade de tratamento, é uma concorrência desleal. Isto é o bom dos tribunais dos EUA, são independentes e funcionam, mesmo contra o estado. Os bancos comerciais têm custos exorbitantes devido às políticas de compliance, como o KYC e AML. Como o governo não vai querer aliviar as regras, logo seria a Tether, a ser obrigada a fazer o compliance dos seus clientes.
A obrigação do KYC para ter stablecoins iriam provocar um terramoto no mundo cripto.
Assim, é pouco provável que seja a solução para a Tether.
FED
Só resta uma hipótese, ser o próprio FED a controlar e a gerir diretamente as stablecoins de dólar, nacionalizado ou absorvendo as existentes. Seria uma espécie de CBDC. Isto iria provocar um novo problema, um problema diplomático, porque as stablecoins estão a colocar em causa a soberania monetária dos outros países. Atualmente as stablecoins estão um pouco protegidas porque vivem num limbo jurídico, mas a partir do momento que estas são controladas pelo governo americano, tudo muda. Os países vão exigir às autoridades americanas medidas que limitem o uso nos seus respectivos países.
Não existe uma solução boa, o sistema FIAT é um castelo de cartas, qualquer carta que se mova, vai provocar um desmoronamento noutro local. As autoridades não poderão adiar mais o problema, terão que o resolver de vez, senão, qualquer dia será tarde demais. Se houver algum problema, vão colocar a responsabilidade no cripto e no Bitcoin. Mas a verdade, a culpa é inteiramente dos políticos, da sua incompetência em resolver os problemas a tempo.
Será algo para acompanhar futuramente, mas só para 2026, talvez…
É curioso, há uns anos pensava-se que o Bitcoin seria a maior ameaça ao sistema ao FIAT, mas afinal, a maior ameaça aos sistema FIAT é o próprio FIAT(stablecoins). A ironia do destino.
Isto é como uma corrida, o Bitcoin é aquele atleta que corre ao seu ritmo, umas vezes mais rápido, outras vezes mais lento, mas nunca pára. O FIAT é o atleta que dá tudo desde da partida, corre sempre em velocidade máxima. Só que a vida e o sistema financeiro não é uma prova de 100 metros, mas sim uma maratona.
Europa
2025 será um ano desafiante para todos europeus, sobretudo devido à entrada em vigor da regulamentação (MiCA). Vão começar a sentir na pele a regulamentação, vão agravar-se os problemas com os compliance, problemas para comprovar a origem de fundos e outras burocracias. Vai ser lindo.
O Travel Route passa a ser obrigatório, os europeus serão obrigados a fazer o KYC nas transações. A Travel Route é uma suposta lei para criar mais transparência, mas prática, é uma lei de controle, de monitorização e para limitar as liberdades individuais dos cidadãos.
O MiCA também está a colocar problemas nas stablecoins de Euro, a Tether para já preferiu ficar de fora da europa. O mais ridículo é que as novas regras obrigam os emissores a colocar 30% das reservas em bancos comerciais. Os burocratas europeus não compreendem que isto coloca em risco a estabilidade e a solvência dos próprios bancos, ficam propensos a corridas bancárias.
O MiCA vai obrigar a todas as exchanges a estar registadas em solo europeu, ficando vulnerável ao temperamento dos burocratas. Ainda não vai ser em 2025, mas a UE vai impor políticas de controle de capitais, é inevitável, as exchanges serão obrigadas a usar em exclusividade stablecoins de euro, as restantes stablecoins serão deslistadas.
Todas estas novas regras do MiCA, são extremamente restritas, não é para garantir mais segurança aos cidadãos europeus, mas sim para garantir mais controle sobre a população. A UE está cada vez mais perto da autocracia, do que da democracia. A minha única esperança no horizonte, é que o sucesso das políticas cripto nos EUA, vai obrigar a UE a recuar e a aligeirar as regras, a teoria dos jogos é implacável. Mas esse recuo, nunca acontecerá em 2025, vai ser um longo período conturbado.
Recessão
Os mercados estão todos em máximos históricos, isto não é sustentável por muito tempo, suspeito que no final de 2025 vai acontecer alguma correção nos mercados. A queda só não será maior, porque os bancos centrais vão imprimir dinheiro, muito dinheiro, como se não houvesse amanhã. Vão voltar a resolver os problemas com a injeção de liquidez na economia, é empurrar os problemas com a barriga, em de os resolver. Outra vez o efeito Cantillon.
Será um ano muito desafiante a nível político, onde o papel dos políticos será fundamental. A crise política na França e na Alemanha, coloca a UE órfã, sem um comandante ao leme do navio. 2025 estará condicionado pelas eleições na Alemanha, sobretudo no resultado do AfD, que podem colocar em causa a propriedade UE e o euro.
Possivelmente, só o fim da guerra poderia minimizar a crise, algo que é muito pouco provável acontecer.
Em Portugal, a economia parece que está mais ou menos equilibrada, mas começam a aparecer alguns sinais preocupantes. Os jogos de sorte e azar estão em máximos históricos, batendo o recorde de 2014, época da grande crise, não é um bom sinal, possivelmente já existe algum desespero no ar.
A Alemanha é o motor da Europa, quanto espirra, Portugal constipa-se. Além do problema da Alemanha, a Espanha também está à beira de uma crise, são os países que mais influenciam a economia portuguesa.
Se existir uma recessão mundial, terá um forte impacto no turismo, que é hoje em dia o principal motor de Portugal.
Brasil
Brasil é algo para acompanhar em 2025, sobretudo a nível macro e a nível político. Existe uma possibilidade de uma profunda crise no Brasil, sobretudo na sua moeda. O banco central já anda a queimar as reservas para minimizar a desvalorização do Real.
Sem mudanças profundas nas políticas fiscais, as reservas vão se esgotar. As políticas de controle de capitais são um cenário plausível, será interesse de acompanhar, como o governo irá proceder perante a existência do Bitcoin e stablecoins. No Brasil existe um forte adoção, será um bom case study, certamente irá repetir-se em outros países num futuro próximo.
Os próximos tempos não serão fáceis para os brasileiros, especialmente para os que não têm Bitcoin.
Blockchain
Em 2025, possivelmente vamos ver os primeiros passos da BlackRock para criar a primeira bolsa de valores, exclusivamente em blockchain. Eu acredito que a BlackRock vai criar uma própria blockchain, toda controlada por si, onde estarão os RWAs, para fazer concorrência às tradicionais bolsas de valores. Será algo interessante de acompanhar.
Estas são as minhas previsões, eu escrevi isto muito em cima do joelho, certamente esqueci-me de algumas coisas, se for importante acrescentarei nos comentários. A maioria das previsões só acontecerá após 2025, mas fica aqui a minha opinião.
Isto é apenas a minha opinião, Don’t Trust, Verify!
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@ f9cf4e94:96abc355
2024-12-30 19:02:32Na era das grandes navegações, piratas ingleses eram autorizados pelo governo para roubar navios.
A única coisa que diferenciava um pirata comum de um corsário é que o último possuía a “Carta do Corso”, que funcionava como um “Alvará para o roubo”, onde o governo Inglês legitimava o roubo de navios por parte dos corsários. É claro, que em troca ele exigia uma parte da espoliação.
Bastante similar com a maneira que a Receita Federal atua, não? Na verdade, o caso é ainda pior, pois o governo fica com toda a riqueza espoliada, e apenas repassa um mísero salário para os corsários modernos, os agentes da receita federal.
Porém eles “justificam” esse roubo ao chamá-lo de imposto, e isso parece acalmar os ânimos de grande parte da população, mas não de nós. Não é por acaso que 'imposto' é o particípio passado do verbo 'impor'. Ou seja, é aquilo que resulta do cumprimento obrigatório -- e não voluntário -- de todos os cidadãos. Se não for 'imposto' ninguém paga. Nem mesmo seus defensores. Isso mostra o quanto as pessoas realmente apreciam os serviços do estado.
Apenas volte um pouco na história: os primeiros pagadores de impostos eram fazendeiros cujos territórios foram invadidos por nômades que pastoreavam seu gado. Esses invasores nômades forçavam os fazendeiros a lhes pagar uma fatia de sua renda em troca de "proteção". O fazendeiro que não concordasse era assassinado.
Os nômades perceberam que era muito mais interessante e confortável apenas cobrar uma taxa de proteção em vez de matar o fazendeiro e assumir suas posses. Cobrando uma taxa, eles obtinham o que necessitavam. Já se matassem os fazendeiros, eles teriam de gerenciar por conta própria toda a produção da fazenda. Daí eles entenderam que, ao não assassinarem todos os fazendeiros que encontrassem pelo caminho, poderiam fazer desta prática um modo de vida.
Assim nasceu o governo.
Não assassinar pessoas foi o primeiro serviço que o governo forneceu. Como temos sorte em ter à nossa disposição esta instituição!
Assim, não deixa de ser curioso que algumas pessoas digam que os impostos são pagos basicamente para impedir que aconteça exatamente aquilo que originou a existência do governo. O governo nasceu da extorsão. Os fazendeiros tinham de pagar um "arrego" para seu governo. Caso contrário, eram assassinados. Quem era a real ameaça? O governo. A máfia faz a mesma coisa.
Mas existe uma forma de se proteger desses corsários modernos. Atualmente, existe uma propriedade privada que NINGUÉM pode tirar de você, ela é sua até mesmo depois da morte. É claro que estamos falando do Bitcoin. Fazendo as configurações certas, é impossível saber que você tem bitcoin. Nem mesmo o governo americano consegue saber.
brasil #bitcoinbrasil #nostrbrasil #grownostr #bitcoin
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@ 16d11430:61640947
2024-12-23 16:47:01At the intersection of philosophy, theology, physics, biology, and finance lies a terrifying truth: the fiat monetary system, in its current form, is not just an economic framework but a silent, relentless force actively working against humanity's survival. It isn't simply a failed financial model—it is a systemic engine of destruction, both externally and within the very core of our biological existence.
The Philosophical Void of Fiat
Philosophy has long questioned the nature of value and the meaning of human existence. From Socrates to Kant, thinkers have pondered the pursuit of truth, beauty, and virtue. But in the modern age, the fiat system has hijacked this discourse. The notion of "value" in a fiat world is no longer rooted in human potential or natural resources—it is abstracted, manipulated, and controlled by central authorities with the sole purpose of perpetuating their own power. The currency is not a reflection of society’s labor or resources; it is a representation of faith in an authority that, more often than not, breaks that faith with reckless monetary policies and hidden inflation.
The fiat system has created a kind of ontological nihilism, where the idea of true value, rooted in work, creativity, and family, is replaced with speculative gambling and short-term gains. This betrayal of human purpose at the systemic level feeds into a philosophical despair: the relentless devaluation of effort, the erosion of trust, and the abandonment of shared human values. In this nihilistic economy, purpose and meaning become increasingly difficult to find, leaving millions to question the very foundation of their existence.
Theological Implications: Fiat and the Collapse of the Sacred
Religious traditions have long linked moral integrity with the stewardship of resources and the preservation of life. Fiat currency, however, corrupts these foundational beliefs. In the theological narrative of creation, humans are given dominion over the Earth, tasked with nurturing and protecting it for future generations. But the fiat system promotes the exact opposite: it commodifies everything—land, labor, and life—treating them as mere transactions on a ledger.
This disrespect for creation is an affront to the divine. In many theologies, creation is meant to be sustained, a delicate balance that mirrors the harmony of the divine order. Fiat systems—by continuously printing money and driving inflation—treat nature and humanity as expendable resources to be exploited for short-term gains, leading to environmental degradation and societal collapse. The creation narrative, in which humans are called to be stewards, is inverted. The fiat system, through its unholy alliance with unrestrained growth and unsustainable debt, is destroying the very creation it should protect.
Furthermore, the fiat system drives idolatry of power and wealth. The central banks and corporations that control the money supply have become modern-day gods, their decrees shaping the lives of billions, while the masses are enslaved by debt and inflation. This form of worship isn't overt, but it is profound. It leads to a world where people place their faith not in God or their families, but in the abstract promises of institutions that serve their own interests.
Physics and the Infinite Growth Paradox
Physics teaches us that the universe is finite—resources, energy, and space are all limited. Yet, the fiat system operates under the delusion of infinite growth. Central banks print money without concern for natural limits, encouraging an economy that assumes unending expansion. This is not only an economic fallacy; it is a physical impossibility.
In thermodynamics, the Second Law states that entropy (disorder) increases over time in any closed system. The fiat system operates as if the Earth were an infinite resource pool, perpetually able to expand without consequence. The real world, however, does not bend to these abstract concepts of infinite growth. Resources are finite, ecosystems are fragile, and human capacity is limited. Fiat currency, by promoting unsustainable consumption and growth, accelerates the depletion of resources and the degradation of natural systems that support life itself.
Even the financial “growth” driven by fiat policies leads to unsustainable bubbles—inflated stock markets, real estate, and speculative assets that burst and leave ruin in their wake. These crashes aren’t just economic—they have profound biological consequences. The cycles of boom and bust undermine communities, erode social stability, and increase anxiety and depression, all of which affect human health at a biological level.
Biology: The Fiat System and the Destruction of Human Health
Biologically, the fiat system is a cancerous growth on human society. The constant chase for growth and the devaluation of work leads to chronic stress, which is one of the leading causes of disease in modern society. The strain of living in a system that values speculation over well-being results in a biological feedback loop: rising anxiety, poor mental health, physical diseases like cardiovascular disorders, and a shortening of lifespans.
Moreover, the focus on profit and short-term returns creates a biological disconnect between humans and the planet. The fiat system fuels industries that destroy ecosystems, increase pollution, and deplete resources at unsustainable rates. These actions are not just environmentally harmful; they directly harm human biology. The degradation of the environment—whether through toxic chemicals, pollution, or resource extraction—has profound biological effects on human health, causing respiratory diseases, cancers, and neurological disorders.
The biological cost of the fiat system is not a distant theory; it is being paid every day by millions in the form of increased health risks, diseases linked to stress, and the growing burden of mental health disorders. The constant uncertainty of an inflation-driven economy exacerbates these conditions, creating a society of individuals whose bodies and minds are under constant strain. We are witnessing a systemic biological unraveling, one in which the very act of living is increasingly fraught with pain, instability, and the looming threat of collapse.
Finance as the Final Illusion
At the core of the fiat system is a fundamental illusion—that financial growth can occur without any real connection to tangible value. The abstraction of currency, the manipulation of interest rates, and the constant creation of new money hide the underlying truth: the system is built on nothing but faith. When that faith falters, the entire system collapses.
This illusion has become so deeply embedded that it now defines the human experience. Work no longer connects to production or creation—it is reduced to a transaction on a spreadsheet, a means to acquire more fiat currency in a world where value is ephemeral and increasingly disconnected from human reality.
As we pursue ever-expanding wealth, the fundamental truths of biology—interdependence, sustainability, and balance—are ignored. The fiat system’s abstract financial models serve to disconnect us from the basic realities of life: that we are part of an interconnected world where every action has a reaction, where resources are finite, and where human health, both mental and physical, depends on the stability of our environment and our social systems.
The Ultimate Extermination
In the end, the fiat system is not just an economic issue; it is a biological, philosophical, theological, and existential threat to the very survival of humanity. It is a force that devalues human effort, encourages environmental destruction, fosters inequality, and creates pain at the core of the human biological condition. It is an economic framework that leads not to prosperity, but to extermination—not just of species, but of the very essence of human well-being.
To continue on this path is to accept the slow death of our species, one based not on natural forces, but on our own choice to worship the abstract over the real, the speculative over the tangible. The fiat system isn't just a threat; it is the ultimate self-inflicted wound, a cultural and financial cancer that, if left unchecked, will destroy humanity’s chance for survival and peace.
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@ a367f9eb:0633efea
2024-12-22 21:35:22I’ll admit that I was wrong about Bitcoin. Perhaps in 2013. Definitely 2017. Probably in 2018-2019. And maybe even today.
Being wrong about Bitcoin is part of finally understanding it. It will test you, make you question everything, and in the words of BTC educator and privacy advocate Matt Odell, “Bitcoin will humble you”.
I’ve had my own stumbles on the way.
In a very public fashion in 2017, after years of using Bitcoin, trying to start a company with it, using it as my primary exchange vehicle between currencies, and generally being annoying about it at parties, I let out the bear.
In an article published in my own literary magazine Devolution Review in September 2017, I had a breaking point. The article was titled “Going Bearish on Bitcoin: Cryptocurrencies are the tulip mania of the 21st century”.
It was later republished in Huffington Post and across dozens of financial and crypto blogs at the time with another, more appropriate title: “Bitcoin Has Become About The Payday, Not Its Potential”.
As I laid out, my newfound bearishness had little to do with the technology itself or the promise of Bitcoin, and more to do with the cynical industry forming around it:
In the beginning, Bitcoin was something of a revolution to me. The digital currency represented everything from my rebellious youth.
It was a decentralized, denationalized, and digital currency operating outside the traditional banking and governmental system. It used tools of cryptography and connected buyers and sellers across national borders at minimal transaction costs.
…
The 21st-century version (of Tulip mania) has welcomed a plethora of slick consultants, hazy schemes dressed up as investor possibilities, and too much wishy-washy language for anything to really make sense to anyone who wants to use a digital currency to make purchases.
While I called out Bitcoin by name at the time, on reflection, I was really talking about the ICO craze, the wishy-washy consultants, and the altcoin ponzis.
What I was articulating — without knowing it — was the frame of NgU, or “numbers go up”. Rather than advocating for Bitcoin because of its uncensorability, proof-of-work, or immutability, the common mentality among newbies and the dollar-obsessed was that Bitcoin mattered because its price was a rocket ship.
And because Bitcoin was gaining in price, affinity tokens and projects that were imperfect forks of Bitcoin took off as well.
The price alone — rather than its qualities — were the reasons why you’d hear Uber drivers, finance bros, or your gym buddy mention Bitcoin. As someone who came to Bitcoin for philosophical reasons, that just sat wrong with me.
Maybe I had too many projects thrown in my face, or maybe I was too frustrated with the UX of Bitcoin apps and sites at the time. No matter what, I’ve since learned something.
I was at least somewhat wrong.
My own journey began in early 2011. One of my favorite radio programs, Free Talk Live, began interviewing guests and having discussions on the potential of Bitcoin. They tied it directly to a libertarian vision of the world: free markets, free people, and free banking. That was me, and I was in. Bitcoin was at about $5 back then (NgU).
I followed every article I could, talked about it with guests on my college radio show, and became a devoted redditor on r/Bitcoin. At that time, at least to my knowledge, there was no possible way to buy Bitcoin where I was living. Very weak.
I was probably wrong. And very wrong for not trying to acquire by mining or otherwise.
The next year, after moving to Florida, Bitcoin was a heavy topic with a friend of mine who shared the same vision (and still does, according to the Celsius bankruptcy documents). We talked about it with passionate leftists at Occupy Tampa in 2012, all the while trying to explain the ills of Keynesian central banking, and figuring out how to use Coinbase.
I began writing more about Bitcoin in 2013, writing a guide on “How to Avoid Bank Fees Using Bitcoin,” discussing its potential legalization in Germany, and interviewing Jeremy Hansen, one of the first political candidates in the U.S. to accept Bitcoin donations.
Even up until that point, I thought Bitcoin was an interesting protocol for sending and receiving money quickly, and converting it into fiat. The global connectedness of it, plus this cypherpunk mentality divorced from government control was both useful and attractive. I thought it was the perfect go-between.
But I was wrong.
When I gave my first public speech on Bitcoin in Vienna, Austria in December 2013, I had grown obsessed with Bitcoin’s adoption on dark net markets like Silk Road.
My theory, at the time, was the number and price were irrelevant. The tech was interesting, and a novel attempt. It was unlike anything before. But what was happening on the dark net markets, which I viewed as the true free market powered by Bitcoin, was even more interesting. I thought these markets would grow exponentially and anonymous commerce via BTC would become the norm.
While the price was irrelevant, it was all about buying and selling goods without permission or license.
Now I understand I was wrong.
Just because Bitcoin was this revolutionary technology that embraced pseudonymity did not mean that all commerce would decentralize as well. It did not mean that anonymous markets were intended to be the most powerful layer in the Bitcoin stack.
What I did not even anticipate is something articulated very well by noted Bitcoin OG Pierre Rochard: Bitcoin as a savings technology.
The ability to maintain long-term savings, practice self-discipline while stacking stats, and embrace a low-time preference was just not something on the mind of the Bitcoiners I knew at the time.
Perhaps I was reading into the hype while outwardly opposing it. Or perhaps I wasn’t humble enough to understand the true value proposition that many of us have learned years later.
In the years that followed, I bought and sold more times than I can count, and I did everything to integrate it into passion projects. I tried to set up a company using Bitcoin while at my university in Prague.
My business model depended on university students being technologically advanced enough to have a mobile wallet, own their keys, and be able to make transactions on a consistent basis. Even though I was surrounded by philosophically aligned people, those who would advance that to actually put Bitcoin into practice were sparse.
This is what led me to proclaim that “Technological Literacy is Doomed” in 2016.
And I was wrong again.
Indeed, since that time, the UX of Bitcoin-only applications, wallets, and supporting tech has vastly improved and onboarded millions more people than anyone thought possible. The entrepreneurship, coding excellence, and vision offered by Bitcoiners of all stripes have renewed a sense in me that this project is something built for us all — friends and enemies alike.
While many of us were likely distracted by flashy and pumpy altcoins over the years (me too, champs), most of us have returned to the Bitcoin stable.
Fast forward to today, there are entire ecosystems of creators, activists, and developers who are wholly reliant on the magic of Bitcoin’s protocol for their life and livelihood. The options are endless. The FUD is still present, but real proof of work stands powerfully against those forces.
In addition, there are now dozens of ways to use Bitcoin privately — still without custodians or intermediaries — that make it one of the most important assets for global humanity, especially in dictatorships.
This is all toward a positive arc of innovation, freedom, and pure independence. Did I see that coming? Absolutely not.
Of course, there are probably other shots you’ve missed on Bitcoin. Price predictions (ouch), the short-term inflation hedge, or the amount of institutional investment. While all of these may be erroneous predictions in the short term, we have to realize that Bitcoin is a long arc. It will outlive all of us on the planet, and it will continue in its present form for the next generation.
Being wrong about the evolution of Bitcoin is no fault, and is indeed part of the learning curve to finally understanding it all.
When your family or friends ask you about Bitcoin after your endless sessions explaining market dynamics, nodes, how mining works, and the genius of cryptographic signatures, try to accept that there is still so much we have to learn about this decentralized digital cash.
There are still some things you’ve gotten wrong about Bitcoin, and plenty more you’ll underestimate or get wrong in the future. That’s what makes it a beautiful journey. It’s a long road, but one that remains worth it.
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@ 4ba8e86d:89d32de4
2025-04-28 22:39:20Como funciona o PGP.
O texto a seguir foi retirado do capítulo 1 do documento Introdução à criptografia na documentação do PGP 6.5.1. Copyright © 1990-1999 Network Associates, Inc. Todos os direitos reservados.
-O que é criptografia? -Criptografia forte -Como funciona a criptografia? -Criptografia convencional -Cifra de César -Gerenciamento de chaves e criptografia convencional -Criptografia de chave pública -Como funciona o PGP - Chaves • Assinaturas digitais -Funções hash • Certificados digitais -Distribuição de certificados -Formatos de certificado •Validade e confiança -Verificando validade -Estabelecendo confiança -Modelos de confiança • Revogação de certificado -Comunicar que um certificado foi revogado -O que é uma senha? -Divisão de chave
Os princípios básicos da criptografia.
Quando Júlio César enviou mensagens aos seus generais, ele não confiou nos seus mensageiros. Então ele substituiu cada A em suas mensagens por um D, cada B por um E, e assim por diante através do alfabeto. Somente alguém que conhecesse a regra “shift by 3” poderia decifrar suas mensagens. E assim começamos.
Criptografia e descriptografia.
Os dados que podem ser lidos e compreendidos sem quaisquer medidas especiais são chamados de texto simples ou texto não criptografado. O método de disfarçar o texto simples de forma a ocultar sua substância é chamado de criptografia. Criptografar texto simples resulta em um jargão ilegível chamado texto cifrado. Você usa criptografia para garantir que as informações sejam ocultadas de qualquer pessoa a quem não se destinam, mesmo daqueles que podem ver os dados criptografados. O processo de reverter o texto cifrado ao texto simples original é chamado de descriptografia . A Figura 1-1 ilustra esse processo.
https://image.nostr.build/0e2fcb71ed86a6083e083abbb683f8c103f44a6c6db1aeb2df10ae51ec97ebe5.jpg
Figura 1-1. Criptografia e descriptografia
O que é criptografia?
Criptografia é a ciência que usa a matemática para criptografar e descriptografar dados. A criptografia permite armazenar informações confidenciais ou transmiti-las através de redes inseguras (como a Internet) para que não possam ser lidas por ninguém, exceto pelo destinatário pretendido. Embora a criptografia seja a ciência que protege os dados, a criptoanálise é a ciência que analisa e quebra a comunicação segura. A criptoanálise clássica envolve uma combinação interessante de raciocínio analítico, aplicação de ferramentas matemáticas, descoberta de padrões, paciência, determinação e sorte. Os criptoanalistas também são chamados de atacantes. A criptologia abrange tanto a criptografia quanto a criptoanálise.
Criptografia forte.
"Existem dois tipos de criptografia neste mundo: a criptografia que impedirá a sua irmã mais nova de ler os seus arquivos, e a criptografia que impedirá os principais governos de lerem os seus arquivos. Este livro é sobre o último." --Bruce Schneier, Criptografia Aplicada: Protocolos, Algoritmos e Código Fonte em C. PGP também trata deste último tipo de criptografia. A criptografia pode ser forte ou fraca, conforme explicado acima. A força criptográfica é medida no tempo e nos recursos necessários para recuperar o texto simples. O resultado de uma criptografia forte é um texto cifrado que é muito difícil de decifrar sem a posse da ferramenta de decodificação apropriada. Quão díficil? Dado todo o poder computacional e o tempo disponível de hoje – mesmo um bilhão de computadores fazendo um bilhão de verificações por segundo – não é possível decifrar o resultado de uma criptografia forte antes do fim do universo. Alguém poderia pensar, então, que uma criptografia forte resistiria muito bem até mesmo contra um criptoanalista extremamente determinado. Quem pode realmente dizer? Ninguém provou que a criptografia mais forte disponível hoje resistirá ao poder computacional de amanhã. No entanto, a criptografia forte empregada pelo PGP é a melhor disponível atualmente.
Contudo, a vigilância e o conservadorismo irão protegê-lo melhor do que as alegações de impenetrabilidade.
Como funciona a criptografia?
Um algoritmo criptográfico, ou cifra, é uma função matemática usada no processo de criptografia e descriptografia. Um algoritmo criptográfico funciona em combinação com uma chave – uma palavra, número ou frase – para criptografar o texto simples. O mesmo texto simples é criptografado em texto cifrado diferente com chaves diferentes. A segurança dos dados criptografados depende inteiramente de duas coisas: a força do algoritmo criptográfico e o sigilo da chave. Um algoritmo criptográfico, mais todas as chaves possíveis e todos os protocolos que o fazem funcionar constituem um criptossistema. PGP é um criptossistema.
Criptografia convencional.
Na criptografia convencional, também chamada de criptografia de chave secreta ou de chave simétrica , uma chave é usada tanto para criptografia quanto para descriptografia. O Data Encryption Standard (DES) é um exemplo de criptossistema convencional amplamente empregado pelo Governo Federal. A Figura 1-2 é uma ilustração do processo de criptografia convencional. https://image.nostr.build/328b73ebaff84c949df2560bbbcec4bc3b5e3a5163d5fbb2ec7c7c60488f894c.jpg
Figura 1-2. Criptografia convencional
Cifra de César.
Um exemplo extremamente simples de criptografia convencional é uma cifra de substituição. Uma cifra de substituição substitui uma informação por outra. Isso é feito com mais frequência compensando as letras do alfabeto. Dois exemplos são o Anel Decodificador Secreto do Capitão Meia-Noite, que você pode ter possuído quando era criança, e a cifra de Júlio César. Em ambos os casos, o algoritmo serve para compensar o alfabeto e a chave é o número de caracteres para compensá-lo. Por exemplo, se codificarmos a palavra "SEGREDO" usando o valor chave de César de 3, deslocaremos o alfabeto para que a terceira letra abaixo (D) comece o alfabeto. Então começando com A B C D E F G H I J K L M N O P Q R S T U V W X Y Z e deslizando tudo para cima em 3, você obtém DEFGHIJKLMNOPQRSTUVWXYZABC onde D=A, E=B, F=C e assim por diante. Usando este esquema, o texto simples, "SECRET" é criptografado como "VHFUHW". Para permitir que outra pessoa leia o texto cifrado, você diz a ela que a chave é 3. Obviamente, esta é uma criptografia extremamente fraca para os padrões atuais, mas, ei, funcionou para César e ilustra como funciona a criptografia convencional.
Gerenciamento de chaves e criptografia convencional.
A criptografia convencional tem benefícios. É muito rápido. É especialmente útil para criptografar dados que não vão a lugar nenhum. No entanto, a criptografia convencional por si só como meio de transmissão segura de dados pode ser bastante cara, simplesmente devido à dificuldade de distribuição segura de chaves. Lembre-se de um personagem do seu filme de espionagem favorito: a pessoa com uma pasta trancada e algemada ao pulso. Afinal, o que há na pasta? Provavelmente não é o código de lançamento de mísseis/fórmula de biotoxina/plano de invasão em si. É a chave que irá descriptografar os dados secretos. Para que um remetente e um destinatário se comuniquem com segurança usando criptografia convencional, eles devem chegar a um acordo sobre uma chave e mantê-la secreta entre si. Se estiverem em locais físicos diferentes, devem confiar em um mensageiro, no Bat Phone ou em algum outro meio de comunicação seguro para evitar a divulgação da chave secreta durante a transmissão. Qualquer pessoa que ouvir ou interceptar a chave em trânsito poderá posteriormente ler, modificar e falsificar todas as informações criptografadas ou autenticadas com essa chave. Do DES ao Anel Decodificador Secreto do Capitão Midnight, o problema persistente com a criptografia convencional é a distribuição de chaves: como você leva a chave ao destinatário sem que alguém a intercepte?
Criptografia de chave pública.
Os problemas de distribuição de chaves são resolvidos pela criptografia de chave pública, cujo conceito foi introduzido por Whitfield Diffie e Martin Hellman em 1975. (Há agora evidências de que o Serviço Secreto Britânico a inventou alguns anos antes de Diffie e Hellman, mas a manteve um segredo militar - e não fez nada com isso.
[JH Ellis: The Possibility of Secure Non-Secret Digital Encryption, CESG Report, January 1970]) A criptografia de chave pública é um esquema assimétrico que usa um par de chaves para criptografia: uma chave pública, que criptografa os dados, e uma chave privada ou secreta correspondente para descriptografia. Você publica sua chave pública para o mundo enquanto mantém sua chave privada em segredo. Qualquer pessoa com uma cópia da sua chave pública pode criptografar informações que somente você pode ler. Até mesmo pessoas que você nunca conheceu. É computacionalmente inviável deduzir a chave privada da chave pública. Qualquer pessoa que possua uma chave pública pode criptografar informações, mas não pode descriptografá-las. Somente a pessoa que possui a chave privada correspondente pode descriptografar as informações. https://image.nostr.build/fdb71ae7a4450a523456827bdd509b31f0250f63152cc6f4ba78df290887318b.jpg
Figura 1-3. Criptografia de chave pública O principal benefício da criptografia de chave pública é que ela permite que pessoas que não possuem nenhum acordo de segurança pré-existente troquem mensagens com segurança. A necessidade de remetente e destinatário compartilharem chaves secretas através de algum canal seguro é eliminada; todas as comunicações envolvem apenas chaves públicas e nenhuma chave privada é transmitida ou compartilhada. Alguns exemplos de criptossistemas de chave pública são Elgamal (nomeado em homenagem a seu inventor, Taher Elgamal), RSA (nomeado em homenagem a seus inventores, Ron Rivest, Adi Shamir e Leonard Adleman), Diffie-Hellman (nomeado, você adivinhou, em homenagem a seus inventores). ) e DSA, o algoritmo de assinatura digital (inventado por David Kravitz). Como a criptografia convencional já foi o único meio disponível para transmitir informações secretas, o custo dos canais seguros e da distribuição de chaves relegou a sua utilização apenas àqueles que podiam pagar, como governos e grandes bancos (ou crianças pequenas com anéis descodificadores secretos). A criptografia de chave pública é a revolução tecnológica que fornece criptografia forte para as massas adultas. Lembra do mensageiro com a pasta trancada e algemada ao pulso? A criptografia de chave pública o tira do mercado (provavelmente para seu alívio).
Como funciona o PGP.
O PGP combina alguns dos melhores recursos da criptografia convencional e de chave pública. PGP é um criptossistema híbrido. Quando um usuário criptografa texto simples com PGP, o PGP primeiro compacta o texto simples. A compactação de dados economiza tempo de transmissão do modem e espaço em disco e, mais importante ainda, fortalece a segurança criptográfica. A maioria das técnicas de criptoanálise explora padrões encontrados no texto simples para quebrar a cifra. A compressão reduz esses padrões no texto simples, aumentando assim enormemente a resistência à criptoanálise. (Arquivos que são muito curtos para compactar ou que não são compactados bem não são compactados.) O PGP então cria uma chave de sessão, que é uma chave secreta única. Esta chave é um número aleatório gerado a partir dos movimentos aleatórios do mouse e das teclas digitadas. Esta chave de sessão funciona com um algoritmo de criptografia convencional rápido e muito seguro para criptografar o texto simples; o resultado é texto cifrado. Depois que os dados são criptografados, a chave da sessão é criptografada na chave pública do destinatário. Essa chave de sessão criptografada com chave pública é transmitida junto com o texto cifrado ao destinatário.
Figura 1-4. Como funciona a criptografia PGP A descriptografia funciona ao contrário. A cópia do PGP do destinatário usa sua chave privada para recuperar a chave de sessão temporária, que o PGP usa para descriptografar o texto cifrado criptografado convencionalmente.
Figura 1-5. Como funciona a descriptografia PGP A combinação dos dois métodos de criptografia combina a conveniência da criptografia de chave pública com a velocidade da criptografia convencional. A criptografia convencional é cerca de 1.000 vezes mais rápida que a criptografia de chave pública. A criptografia de chave pública, por sua vez, fornece uma solução para
problemas de distribuição de chaves e transmissão de dados. Usados em conjunto, o desempenho e a distribuição de chaves são melhorados sem qualquer sacrifício na segurança.
Chaves.
Uma chave é um valor que funciona com um algoritmo criptográfico para produzir um texto cifrado específico. As chaves são basicamente números muito, muito, muito grandes. O tamanho da chave é medido em bits; o número que representa uma chave de 1024 bits é enorme. Na criptografia de chave pública, quanto maior a chave, mais seguro é o texto cifrado. No entanto, o tamanho da chave pública e o tamanho da chave secreta da criptografia convencional não têm nenhuma relação. Uma chave convencional de 80 bits tem a força equivalente a uma chave pública de 1.024 bits. Uma chave convencional de 128 bits é equivalente a uma chave pública de 3.000 bits. Novamente, quanto maior a chave, mais segura, mas os algoritmos usados para cada tipo de criptografia são muito diferentes e, portanto, a comparação é como a de maçãs com laranjas. Embora as chaves pública e privada estejam matematicamente relacionadas, é muito difícil derivar a chave privada dada apenas a chave pública; no entanto, derivar a chave privada é sempre possível, desde que haja tempo e capacidade computacional suficientes. Isto torna muito importante escolher chaves do tamanho certo; grande o suficiente para ser seguro, mas pequeno o suficiente para ser aplicado rapidamente. Além disso, você precisa considerar quem pode estar tentando ler seus arquivos, quão determinados eles estão, quanto tempo têm e quais podem ser seus recursos. Chaves maiores serão criptograficamente seguras por um longo período de tempo. Se o que você deseja criptografar precisar ficar oculto por muitos anos, você pode usar uma chave muito grande. Claro, quem sabe quanto tempo levará para determinar sua chave usando os computadores mais rápidos e eficientes de amanhã? Houve um tempo em que uma chave simétrica de 56 bits era considerada extremamente segura. As chaves são armazenadas de forma criptografada. O PGP armazena as chaves em dois arquivos no seu disco rígido; um para chaves públicas e outro para chaves privadas. Esses arquivos são chamados de chaveiros. Ao usar o PGP, você normalmente adicionará as chaves públicas dos seus destinatários ao seu chaveiro público. Suas chaves privadas são armazenadas em seu chaveiro privado. Se você perder seu chaveiro privado, não será possível descriptografar nenhuma informação criptografada nas chaves desse anel.
Assinaturas digitais.
Um grande benefício da criptografia de chave pública é que ela fornece um método para empregar assinaturas digitais. As assinaturas digitais permitem ao destinatário da informação verificar a autenticidade da origem da informação e também verificar se a informação está intacta. Assim, as assinaturas digitais de chave pública fornecem autenticação e integridade de dados. A assinatura digital também proporciona o não repúdio, o que significa que evita que o remetente alegue que não enviou realmente as informações. Esses recursos são tão fundamentais para a criptografia quanto a privacidade, se não mais. Uma assinatura digital tem a mesma finalidade de uma assinatura manuscrita. No entanto, uma assinatura manuscrita é fácil de falsificar. Uma assinatura digital é superior a uma assinatura manuscrita porque é quase impossível de ser falsificada, além de atestar o conteúdo da informação, bem como a identidade do signatário.
Algumas pessoas tendem a usar mais assinaturas do que criptografia. Por exemplo, você pode não se importar se alguém souber que você acabou de depositar US$ 1.000 em sua conta, mas quer ter certeza de que foi o caixa do banco com quem você estava lidando. A maneira básica pela qual as assinaturas digitais são criadas é ilustrada na Figura 1-6 . Em vez de criptografar informações usando a chave pública de outra pessoa, você as criptografa com sua chave privada. Se as informações puderem ser descriptografadas com sua chave pública, elas deverão ter se originado em você.
Figura 1-6. Assinaturas digitais simples
Funções hash.
O sistema descrito acima apresenta alguns problemas. É lento e produz um enorme volume de dados – pelo menos o dobro do tamanho da informação original. Uma melhoria no esquema acima é a adição de uma função hash unidirecional no processo. Uma função hash unidirecional recebe uma entrada de comprimento variável – neste caso, uma mensagem de qualquer comprimento, até mesmo milhares ou milhões de bits – e produz uma saída de comprimento fixo; digamos, 160 bits. A função hash garante que, se a informação for alterada de alguma forma – mesmo que por apenas um bit – seja produzido um valor de saída totalmente diferente. O PGP usa uma função hash criptograficamente forte no texto simples que o usuário está assinando. Isso gera um item de dados de comprimento fixo conhecido como resumo da mensagem. (Novamente, qualquer alteração nas informações resulta em um resumo totalmente diferente.) Então o PGP usa o resumo e a chave privada para criar a “assinatura”. O PGP transmite a assinatura e o texto simples juntos. Ao receber a mensagem, o destinatário utiliza o PGP para recalcular o resumo, verificando assim a assinatura. O PGP pode criptografar o texto simples ou não; assinar texto simples é útil se alguns dos destinatários não estiverem interessados ou não forem capazes de verificar a assinatura. Desde que uma função hash segura seja usada, não há como retirar a assinatura de alguém de um documento e anexá-la a outro, ou alterar uma mensagem assinada de qualquer forma. A menor alteração em um documento assinado causará falha no processo de verificação da assinatura digital.
Figura 1-7. Assinaturas digitais seguras As assinaturas digitais desempenham um papel importante na autenticação e validação de chaves de outros usuários PGP.
Certificados digitais.
Um problema com os criptosistemas de chave pública é que os usuários devem estar constantemente vigilantes para garantir que estão criptografando com a chave da pessoa correta. Num ambiente onde é seguro trocar chaves livremente através de servidores públicos, os ataques man-in-the-middle são uma ameaça potencial. Neste tipo de ataque, alguém publica uma chave falsa com o nome e ID de usuário do destinatário pretendido. Os dados criptografados – e interceptados por – o verdadeiro proprietário desta chave falsa estão agora em mãos erradas. Em um ambiente de chave pública, é vital que você tenha certeza de que a chave pública para a qual você está criptografando os dados é de fato a chave pública do destinatário pretendido e não uma falsificação. Você pode simplesmente criptografar apenas as chaves que foram entregues fisicamente a você. Mas suponha que você precise trocar informações com pessoas que nunca conheceu; como você pode saber se tem a chave correta? Os certificados digitais, ou certs, simplificam a tarefa de estabelecer se uma chave pública realmente pertence ao suposto proprietário. Um certificado é uma forma de credencial. Exemplos podem ser sua carteira de motorista, seu cartão de previdência social ou sua certidão de nascimento. Cada um deles contém algumas informações que identificam você e alguma autorização informando que outra pessoa confirmou sua identidade. Alguns certificados, como o seu passaporte, são uma confirmação importante o suficiente da sua identidade para que você não queira perdê-los, para que ninguém os use para se passar por você.
Um certificado digital são dados que funcionam como um certificado físico. Um certificado digital é uma informação incluída na chave pública de uma pessoa que ajuda outras pessoas a verificar se uma chave é genuína ou válida. Os certificados digitais são usados para impedir tentativas de substituir a chave de uma pessoa por outra.
Um certificado digital consiste em três coisas:
● Uma chave pública.
● Informações do certificado. (Informações de "identidade" sobre o usuário, como nome, ID do usuário e assim por diante.) ● Uma ou mais assinaturas digitais.
O objetivo da assinatura digital em um certificado é afirmar que as informações do certificado foram atestadas por alguma outra pessoa ou entidade. A assinatura digital não atesta a autenticidade do certificado como um todo; ele atesta apenas que as informações de identidade assinadas acompanham ou estão vinculadas à chave pública. Assim, um certificado é basicamente uma chave pública com uma ou duas formas de identificação anexadas, além de um forte selo de aprovação de algum outro indivíduo confiável.
Figura 1-8. Anatomia de um certificado PGP
Distribuição de certificados.
Os certificados são utilizados quando é necessário trocar chaves públicas com outra pessoa. Para pequenos grupos de pessoas que desejam se comunicar com segurança, é fácil trocar manualmente disquetes ou e-mails contendo a chave pública de cada proprietário. Esta é a distribuição manual de chave pública e é prática apenas até certo ponto. Além desse ponto, é necessário implementar sistemas que possam fornecer os mecanismos necessários de segurança, armazenamento e troca para que colegas de trabalho, parceiros de negócios ou estranhos possam se comunicar, se necessário. Eles podem vir na forma de repositórios somente de armazenamento, chamados Servidores de Certificados, ou sistemas mais estruturados que fornecem recursos adicionais de gerenciamento de chaves e são chamados de Infraestruturas de Chave Pública (PKIs).
Servidores de certificados.
Um servidor de certificados, também chamado de servidor certificado ou servidor de chaves, é um banco de dados que permite aos usuários enviar e recuperar certificados digitais. Um servidor certificado geralmente fornece alguns recursos administrativos que permitem que uma empresa mantenha suas políticas de segurança – por exemplo, permitindo que apenas as chaves que atendam a determinados requisitos sejam armazenadas.
Infraestruturas de Chave Pública.
Uma PKI contém os recursos de armazenamento de certificados de um servidor de certificados, mas também fornece recursos de gerenciamento de certificados (a capacidade de emitir, revogar, armazenar, recuperar e confiar em certificados). A principal característica de uma PKI é a introdução do que é conhecido como Autoridade Certificadora,ou CA, que é uma entidade humana — uma pessoa, grupo, departamento, empresa ou outra associação — que uma organização autorizou a emitir certificados para seus usuários de computador. (A função de uma CA é análoga à do Passport Office do governo de um país.) Uma CA cria certificados e os assina digitalmente usando a chave privada da CA. Devido ao seu papel na criação de certificados, a CA é o componente central de uma PKI. Usando a chave pública da CA, qualquer pessoa que queira verificar a autenticidade de um certificado verifica a assinatura digital da CA emissora e, portanto, a integridade do conteúdo do certificado (mais importante ainda, a chave pública e a identidade do titular do certificado).
Formatos de certificado.
Um certificado digital é basicamente uma coleção de informações de identificação vinculadas a uma chave pública e assinadas por um terceiro confiável para provar sua autenticidade. Um certificado digital pode ter vários formatos diferentes.
O PGP reconhece dois formatos de certificado diferentes:
● Certificados PGP ● Certificados X.509 Formato do certificado PGP. Um certificado PGP inclui (mas não está limitado a) as seguintes informações: ● O número da versão do PGP — identifica qual versão do PGP foi usada para criar a chave associada ao certificado. A chave pública do titular do certificado — a parte pública do seu par de chaves, juntamente com o algoritmo da chave: RSA, DH (Diffie-Hellman) ou DSA (Algoritmo de Assinatura Digital).
● As informações do detentor do certificado — consistem em informações de “identidade” sobre o usuário, como seu nome, ID de usuário, fotografia e assim por diante. ● A assinatura digital do proprietário do certificado — também chamada de autoassinatura, é a assinatura que utiliza a chave privada correspondente da chave pública associada ao certificado. ● O período de validade do certificado — a data/hora de início e a data/hora de expiração do certificado; indica quando o certificado irá expirar. ● O algoritmo de criptografia simétrica preferido para a chave — indica o algoritmo de criptografia para o qual o proprietário do certificado prefere que as informações sejam criptografadas. Os algoritmos suportados são CAST, IDEA ou Triple-DES. Você pode pensar em um certificado PGP como uma chave pública com um ou mais rótulos vinculados a ele (veja a Figura 1.9 ). Nessas 'etiquetas' você encontrará informações que identificam o proprietário da chave e uma assinatura do proprietário da chave, que afirma que a chave e a identificação andam juntas. (Essa assinatura específica é chamada de autoassinatura; todo certificado PGP contém uma autoassinatura.) Um aspecto único do formato de certificado PGP é que um único certificado pode conter múltiplas assinaturas. Várias ou muitas pessoas podem assinar o par chave/identificação para atestar a sua própria garantia de que a chave pública pertence definitivamente ao proprietário especificado. Se você procurar em um servidor de certificados público, poderá notar que certos certificados, como o do criador do PGP, Phil Zimmermann, contêm muitas assinaturas. Alguns certificados PGP consistem em uma chave pública com vários rótulos, cada um contendo um meio diferente de identificar o proprietário da chave (por exemplo, o nome do proprietário e a conta de e-mail corporativa, o apelido do proprietário e a conta de e-mail residencial, uma fotografia do proprietário — tudo em um certificado). A lista de assinaturas de cada uma dessas identidades pode ser diferente; as assinaturas atestam a autenticidade de que um dos rótulos pertence à chave pública, e não que todos os rótulos da chave sejam autênticos. (Observe que 'autêntico' está nos olhos de quem vê - assinaturas são opiniões, e diferentes pessoas dedicam diferentes níveis de devida diligência na verificação da autenticidade antes de assinar uma chave.)
Figura 1-9. Um certificado PGP
Formato de certificado X.509.
X.509 é outro formato de certificado muito comum. Todos os certificados X.509 estão em conformidade com o padrão internacional ITU-T X.509; assim (teoricamente) os certificados X.509 criados para um aplicativo podem ser usados por qualquer aplicativo compatível com X.509. Na prática, porém, diferentes empresas criaram suas próprias extensões para certificados X.509, e nem todas funcionam juntas. Um certificado exige que alguém valide que uma chave pública e o nome do proprietário da chave andam juntos. Com os certificados PGP, qualquer pessoa pode desempenhar o papel de validador. Com certificados X.509, o validador é sempre uma Autoridade Certificadora ou alguém designado por uma CA. (Tenha em mente que os certificados PGP também suportam totalmente uma estrutura hierárquica usando uma CA para validar certificados.)
Um certificado X.509 é uma coleção de um conjunto padrão de campos contendo informações sobre um usuário ou dispositivo e sua chave pública correspondente. O padrão X.509 define quais informações vão para o certificado e descreve como codificá-lo (o formato dos dados). Todos os certificados X.509 possuem os seguintes dados:
O número da versão X.509
— identifica qual versão do padrão X.509 se aplica a este certificado, o que afeta quais informações podem ser especificadas nele. A mais atual é a versão 3.
A chave pública do titular do certificado
— a chave pública do titular do certificado, juntamente com um identificador de algoritmo que especifica a qual sistema criptográfico a chave pertence e quaisquer parâmetros de chave associados.
O número de série do certificado
— a entidade (aplicação ou pessoa) que criou o certificado é responsável por atribuir-lhe um número de série único para distingui-lo de outros certificados que emite. Esta informação é usada de diversas maneiras; por exemplo, quando um certificado é revogado, seu número de série é colocado em uma Lista de Revogação de Certificados ou CRL.
O identificador exclusivo do detentor do certificado
— (ou DN — nome distinto). Este nome pretende ser exclusivo na Internet. Este nome pretende ser exclusivo na Internet. Um DN consiste em múltiplas subseções e pode ser parecido com isto: CN=Bob Allen, OU=Divisão Total de Segurança de Rede, O=Network Associates, Inc., C=EUA (Referem-se ao nome comum, à unidade organizacional, à organização e ao país do sujeito .)
O período de validade do certificado
— a data/hora de início e a data/hora de expiração do certificado; indica quando o certificado irá expirar.
O nome exclusivo do emissor do certificado
— o nome exclusivo da entidade que assinou o certificado. Normalmente é uma CA. A utilização do certificado implica confiar na entidade que assinou este certificado. (Observe que em alguns casos, como certificados de CA raiz ou de nível superior , o emissor assina seu próprio certificado.)
A assinatura digital do emitente
— a assinatura utilizando a chave privada da entidade que emitiu o certificado.
O identificador do algoritmo de assinatura
— identifica o algoritmo usado pela CA para assinar o certificado.
Existem muitas diferenças entre um certificado X.509 e um certificado PGP, mas as mais importantes são as seguintes: você pode criar seu próprio certificado PGP;
● você deve solicitar e receber um certificado X.509 de uma autoridade de certificação
● Os certificados X.509 suportam nativamente apenas um único nome para o proprietário da chave
● Os certificados X.509 suportam apenas uma única assinatura digital para atestar a validade da chave
Para obter um certificado X.509, você deve solicitar a uma CA a emissão de um certificado. Você fornece sua chave pública, prova de que possui a chave privada correspondente e algumas informações específicas sobre você. Em seguida, você assina digitalmente as informações e envia o pacote completo – a solicitação de certificado – para a CA. A CA então realiza algumas diligências para verificar se as informações fornecidas estão corretas e, em caso afirmativo, gera o certificado e o devolve.
Você pode pensar em um certificado X.509 como um certificado de papel padrão (semelhante ao que você recebeu ao concluir uma aula de primeiros socorros básicos) com uma chave pública colada nele. Ele contém seu nome e algumas informações sobre você, além da assinatura da pessoa que o emitiu para você.
Figura 1-10. Um certificado X.509 Provavelmente, o uso mais visível dos certificados X.509 atualmente é em navegadores da web.
Validade e confiança Cada usuário em um sistema de chave pública está vulnerável a confundir uma chave falsa (certificado) com uma chave real. Validade é a confiança de que um certificado de chave pública pertence ao seu suposto proprietário. A validade é essencial em um ambiente de chave pública onde você deve estabelecer constantemente se um determinado certificado é autêntico ou não. Depois de ter certeza de que um certificado pertencente a outra pessoa é válido, você pode assinar a cópia em seu chaveiro para atestar que verificou o certificado e que ele é autêntico. Se quiser que outras pessoas saibam que você deu ao certificado seu selo de aprovação, você pode exportar a assinatura para um servidor de certificados para que outras pessoas possam vê-la.
Conforme descrito na seção Infraestruturas de Chave Pública , algumas empresas designam uma ou mais Autoridades de Certificação (CAs) para indicar a validade do certificado. Em uma organização que usa uma PKI com certificados X.509, é função da CA emitir certificados aos usuários — um processo que geralmente envolve responder à solicitação de certificado do usuário. Em uma organização que usa certificados PGP sem PKI, é função da CA verificar a autenticidade de todos os certificados PGP e depois assinar os bons. Basicamente, o objetivo principal de uma CA é vincular uma chave pública às informações de identificação contidas no certificado e, assim, garantir a terceiros que algum cuidado foi tomado para garantir que esta ligação das informações de identificação e da chave seja válida. O CA é o Grand Pooh-bah da validação em uma organização; alguém em quem todos confiam e, em algumas organizações, como aquelas que utilizam uma PKI, nenhum certificado é considerado válido, a menos que tenha sido assinado por uma CA confiável.
Verificando validade.
Uma maneira de estabelecer a validade é passar por algum processo manual. Existem várias maneiras de fazer isso. Você pode exigir que o destinatário pretendido lhe entregue fisicamente uma cópia de sua chave pública. Mas isto é muitas vezes inconveniente e ineficiente. Outra forma é verificar manualmente a impressão digital do certificado. Assim como as impressões digitais de cada ser humano são únicas, a impressão digital de cada certificado PGP é única. A impressão digital é um hash do certificado do usuário e aparece como uma das propriedades do certificado. No PGP, a impressão digital pode aparecer como um número hexadecimal ou uma série das chamadas palavras biométricas, que são foneticamente distintas e são usadas para facilitar um pouco o processo de identificação da impressão digital. Você pode verificar se um certificado é válido ligando para o proprietário da chave (para que você origine a transação) e pedindo ao proprietário que leia a impressão digital de sua chave para você e compare essa impressão digital com aquela que você acredita ser a verdadeira. Isso funciona se você conhece a voz do proprietário, mas como verificar manualmente a identidade de alguém que você não conhece? Algumas pessoas colocam a impressão digital de sua chave em seus cartões de visita exatamente por esse motivo. Outra forma de estabelecer a validade do certificado de alguém é confiar que um terceiro indivíduo passou pelo processo de validação do mesmo. Uma CA, por exemplo, é responsável por garantir que, antes de emitir um certificado, ele ou ela o verifique cuidadosamente para ter certeza de que a parte da chave pública realmente pertence ao suposto proprietário. Qualquer pessoa que confie na CA considerará automaticamente quaisquer certificados assinados pela CA como válidos. Outro aspecto da verificação da validade é garantir que o certificado não foi revogado. Para obter mais informações, consulte a seção Revogação de certificado .
Estabelecendo confiança.
Você valida certificados. Você confia nas pessoas. Mais especificamente, você confia nas pessoas para validar os certificados de outras pessoas. Normalmente, a menos que o proprietário lhe entregue o certificado, você terá que confiar na palavra de outra pessoa de que ele é válido.
Introdutores meta e confiáveis.
Na maioria das situações, as pessoas confiam completamente na CA para estabelecer a validade dos certificados. Isso significa que todos os demais dependem da CA para passar por todo o processo de validação manual. Isso é aceitável até um certo número de usuários ou locais de trabalho e, então, não é possível para a AC manter o mesmo nível de validação de qualidade. Nesse caso, é necessário adicionar outros validadores ao sistema.
Um CA também pode ser um meta- introdutor. Um meta-introdutor confere não apenas validade às chaves, mas também confere a capacidade de confiar nas chaves a outros. Semelhante ao rei que entrega seu selo a seus conselheiros de confiança para que eles possam agir de acordo com sua autoridade, o meta-introdutor permite que outros atuem como introdutores de confiança. Esses introdutores confiáveis podem validar chaves com o mesmo efeito do meta-introdutor. Eles não podem, entretanto, criar novos introdutores confiáveis.
Meta-introdutor e introdutor confiável são termos PGP. Em um ambiente X.509, o meta-introdutor é chamado de Autoridade de Certificação raiz ( CA raiz) e os introdutores confiáveis são Autoridades de Certificação subordinadas . A CA raiz usa a chave privada associada a um tipo de certificado especial denominado certificado CA raiz para assinar certificados. Qualquer certificado assinado pelo certificado CA raiz é visto como válido por qualquer outro certificado assinado pela raiz. Este processo de validação funciona mesmo para certificados assinados por outras CAs no sistema — desde que o certificado da CA raiz tenha assinado o certificado da CA subordinada, qualquer certificado assinado pela CA será considerado válido para outras pessoas dentro da hierarquia. Este processo de verificação de backup por meio do sistema para ver quem assinou cujo certificado é chamado de rastreamento de um caminho de certificação ou cadeia de certificação.
Modelos de confiança.
Em sistemas relativamente fechados, como em uma pequena empresa, é fácil rastrear um caminho de certificação até a CA raiz. No entanto, os usuários muitas vezes precisam se comunicar com pessoas fora do seu ambiente corporativo, incluindo algumas que nunca conheceram, como fornecedores, consumidores, clientes, associados e assim por diante. É difícil estabelecer uma linha de confiança com aqueles em quem sua CA não confia explicitamente. As empresas seguem um ou outro modelo de confiança, que determina como os usuários irão estabelecer a validade do certificado. Existem três modelos diferentes:
Confiança Direta.
Confiança Hierárquica Uma teia de confiança Confiança direta A confiança direta é o modelo de confiança mais simples. Neste modelo, um usuário confia que uma chave é válida porque sabe de onde ela veio. Todos os criptosistemas usam essa forma de confiança de alguma forma. Por exemplo, em navegadores da Web, as chaves raiz da Autoridade de Certificação são diretamente confiáveis porque foram enviadas pelo fabricante. Se houver alguma forma de hierarquia, ela se estenderá a partir desses certificados diretamente confiáveis. No PGP, um usuário que valida as chaves e nunca define outro certificado para ser um introdutor confiável está usando confiança direta.
Figura 1-11. Confiança direta
Confiança Hierárquica.
Em um sistema hierárquico, há vários certificados "raiz" a partir dos quais a confiança se estende. Esses certificados podem certificar eles próprios certificados ou podem certificar certificados que certificam ainda outros certificados em alguma cadeia. Considere isso como uma grande “árvore” de confiança. A validade do certificado "folha" é verificada rastreando desde seu certificador até outros certificadores, até que um certificado raiz diretamente confiável seja encontrado.
Figura 1-12. Confiança hierárquica
Teia de Confiança.
Uma teia de confiança abrange ambos os outros modelos, mas também acrescenta a noção de que a confiança está nos olhos de quem vê (que é a visão do mundo real) e a ideia de que mais informação é melhor. É, portanto, um modelo de confiança cumulativa. Um certificado pode ser confiável diretamente ou confiável em alguma cadeia que remonta a um certificado raiz diretamente confiável (o meta-introdutor) ou por algum grupo de introdutores.
Talvez você já tenha ouvido falar do termo seis graus de separação, que sugere que qualquer pessoa no mundo pode determinar algum vínculo com qualquer outra pessoa no mundo usando seis ou menos outras pessoas como intermediários. Esta é uma teia de introdutores. É também a visão de confiança do PGP. PGP usa assinaturas digitais como forma de introdução. Quando qualquer usuário assina a chave de outro, ele ou ela se torna o introdutor dessa chave. À medida que esse processo avança, ele estabelece uma rede de confiança.
Em um ambiente PGP, qualquer usuário pode atuar como autoridade certificadora. Qualquer usuário PGP pode validar o certificado de chave pública de outro usuário PGP. No entanto, tal certificado só é válido para outro usuário se a parte confiável reconhecer o validador como um introdutor confiável. (Ou seja, você confia na minha opinião de que as chaves dos outros são válidas apenas se você me considerar um apresentador confiável. Caso contrário, minha opinião sobre a validade das outras chaves é discutível.) Armazenados no chaveiro público de cada usuário estão indicadores de
● se o usuário considera ou não uma chave específica válida
● o nível de confiança que o usuário deposita na chave que o proprietário da chave pode servir como certificador das chaves de terceiros
Você indica, na sua cópia da minha chave, se acha que meu julgamento conta. Na verdade, é um sistema de reputação: certas pessoas têm a reputação de fornecer boas assinaturas e as pessoas confiam nelas para atestar a validade de outras chaves.
Níveis de confiança no PGP.
O nível mais alto de confiança em uma chave, a confiança implícita , é a confiança em seu próprio par de chaves. O PGP assume que se você possui a chave privada, você deve confiar nas ações da sua chave pública relacionada. Quaisquer chaves assinadas pela sua chave implicitamente confiável são válidas.
Existem três níveis de confiança que você pode atribuir à chave pública de outra pessoa:
● Confiança total ● Confiança marginal ● Não confiável (ou não confiável)
Para tornar as coisas confusas, também existem três níveis de validade:
● Válido ● Marginalmente válido ● Inválido
Para definir a chave de outra pessoa como um introdutor confiável, você
- Comece com uma chave válida, que seja.
- assinado por você ou
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assinado por outro apresentador confiável e então
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Defina o nível de confiança que você acha que o proprietário da chave tem direito.
Por exemplo, suponha que seu chaveiro contenha a chave de Alice. Você validou a chave de Alice e indica isso assinando-a. Você sabe que Alice é uma verdadeira defensora da validação de chaves de outras pessoas. Portanto, você atribui a chave dela com confiança total. Isso faz de Alice uma Autoridade Certificadora. Se Alice assinar a chave de outra pessoa, ela aparecerá como Válida em seu chaveiro. O PGP requer uma assinatura Totalmente confiável ou duas assinaturas Marginalmente confiáveis para estabelecer uma chave como válida. O método do PGP de considerar dois Marginais iguais a um Completo é semelhante a um comerciante que solicita duas formas de identificação. Você pode considerar Alice bastante confiável e também considerar Bob bastante confiável. Qualquer um deles sozinho corre o risco de assinar acidentalmente uma chave falsificada, portanto, você pode não depositar total confiança em nenhum deles. No entanto, as probabilidades de ambos os indivíduos terem assinado a mesma chave falsa são provavelmente pequenas.
Revogação de certificado.
Os certificados só são úteis enquanto são válidos. Não é seguro simplesmente presumir que um certificado é válido para sempre. Na maioria das organizações e em todas as PKIs, os certificados têm uma vida útil restrita. Isso restringe o período em que um sistema fica vulnerável caso ocorra um comprometimento do certificado.
Os certificados são assim criados com um período de validade programado: uma data/hora de início e uma data/hora de expiração. Espera-se que o certificado seja utilizável durante todo o seu período de validade (seu tempo de vida ). Quando o certificado expirar, ele não será mais válido, pois a autenticidade do seu par chave/identificação não estará mais garantida. (O certificado ainda pode ser usado com segurança para reconfirmar informações que foram criptografadas ou assinadas dentro do período de validade – no entanto, ele não deve ser confiável para tarefas criptográficas futuras.)
Existem também situações em que é necessário invalidar um certificado antes da sua data de expiração, como quando o titular do certificado termina o contrato de trabalho com a empresa ou suspeita que a chave privada correspondente do certificado foi comprometida. Isso é chamado de revogação. Um certificado revogado é muito mais suspeito do que um certificado expirado. Os certificados expirados são inutilizáveis, mas não apresentam a mesma ameaça de comprometimento que um certificado revogado. Qualquer pessoa que tenha assinado um certificado pode revogar a sua assinatura no certificado (desde que utilize a mesma chave privada que criou a assinatura). Uma assinatura revogada indica que o signatário não acredita mais que a chave pública e as informações de identificação pertencem uma à outra, ou que a chave pública do certificado (ou a chave privada correspondente) foi comprometida. Uma assinatura revogada deve ter quase tanto peso quanto um certificado revogado. Com certificados X.509, uma assinatura revogada é praticamente igual a um certificado revogado, visto que a única assinatura no certificado é aquela que o tornou válido em primeiro lugar – a assinatura da CA. Os certificados PGP fornecem o recurso adicional de que você pode revogar todo o seu certificado (não apenas as assinaturas nele) se você achar que o certificado foi comprometido. Somente o proprietário do certificado (o detentor da chave privada correspondente) ou alguém que o proprietário do certificado tenha designado como revogador pode revogar um certificado PGP. (Designar um revogador é uma prática útil, pois muitas vezes é a perda da senha da chave privada correspondente do certificado que leva um usuário PGP a revogar seu certificado - uma tarefa que só é possível se alguém tiver acesso à chave privada. ) Somente o emissor do certificado pode revogar um certificado X.509.
Comunicar que um certificado foi revogado.
Quando um certificado é revogado, é importante conscientizar os usuários potenciais do certificado de que ele não é mais válido. Com certificados PGP, a maneira mais comum de comunicar que um certificado foi revogado é publicá-lo em um servidor de certificados para que outras pessoas que desejem se comunicar com você sejam avisadas para não usar essa chave pública. Em um ambiente PKI, a comunicação de certificados revogados é mais comumente obtida por meio de uma estrutura de dados chamada Lista de Revogação de Certificados, ou CRL, que é publicada pela CA. A CRL contém uma lista validada com carimbo de data e hora de todos os certificados revogados e não expirados no sistema. Os certificados revogados permanecem na lista apenas até expirarem e, em seguida, são removidos da lista — isso evita que a lista fique muito longa. A CA distribui a CRL aos usuários em algum intervalo programado regularmente (e potencialmente fora do ciclo, sempre que um certificado é revogado). Teoricamente, isso impedirá que os usuários usem involuntariamente um certificado comprometido. É possível, no entanto, que haja um período de tempo entre as CRLs em que um certificado recentemente comprometido seja usado.
O que é uma senha?
A maioria das pessoas está familiarizada com a restrição de acesso a sistemas de computador por meio de uma senha, que é uma sequência única de caracteres que um usuário digita como código de identificação.
Uma senha longa é uma versão mais longa de uma senha e, em teoria, mais segura. Normalmente composta por várias palavras, uma frase secreta é mais segura contra ataques de dicionário padrão, em que o invasor tenta todas as palavras do dicionário na tentativa de determinar sua senha. As melhores senhas são relativamente longas e complexas e contêm uma combinação de letras maiúsculas e minúsculas, caracteres numéricos e de pontuação. O PGP usa uma senha para criptografar sua chave privada em sua máquina. Sua chave privada é criptografada em seu disco usando um hash de sua senha como chave secreta. Você usa a senha para descriptografar e usar sua chave privada. Uma senha deve ser difícil de esquecer e difícil de ser adivinhada por outras pessoas. Deve ser algo já firmemente enraizado na sua memória de longo prazo, em vez de algo que você invente do zero. Por que? Porque se você esquecer sua senha, você estará sem sorte. Sua chave privada é total e absolutamente inútil sem sua senha e nada pode ser feito a respeito. Lembra-se da citação anterior neste capítulo?
PGP é a criptografia que manterá os principais governos fora dos seus arquivos. Certamente também o manterá fora de seus arquivos. Tenha isso em mente quando decidir alterar sua senha para a piada daquela piada que você nunca consegue lembrar.
Divisão de chave.
Dizem que um segredo não é segredo se for conhecido por mais de uma pessoa. Compartilhar um par de chaves privadas representa um grande problema. Embora não seja uma prática recomendada, às vezes é necessário compartilhar um par de chaves privadas. Chaves de assinatura corporativa, por exemplo, são chaves privadas usadas por uma empresa para assinar – por exemplo – documentos legais, informações pessoais confidenciais ou comunicados de imprensa para autenticar sua origem. Nesse caso, vale a pena que vários membros da empresa tenham acesso à chave privada. No entanto, isto significa que qualquer indivíduo pode agir plenamente em nome da empresa. Nesse caso, é aconselhável dividir a chave entre várias pessoas, de modo que mais de uma ou duas pessoas apresentem um pedaço da chave para reconstituí-la em condições utilizáveis. Se poucas peças da chave estiverem disponíveis, a chave ficará inutilizável. Alguns exemplos são dividir uma chave em três partes e exigir duas delas para reconstituir a chave, ou dividi-la em duas partes e exigir ambas as peças. Se uma conexão de rede segura for usada durante o processo de reconstituição, os acionistas da chave não precisam estar fisicamente presentes para aderirem novamente à chave.
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2024-12-09 23:50:41Resilience is the ability to withstand shocks, adapt, and bounce back. It’s an essential quality in nature and in life. But what if we could take resilience a step further? What if, instead of merely surviving, a system could improve when faced with stress? This concept, known as anti-fragility, is not just theoretical—it’s practical. Combining two highly resilient natural tools, comfrey and biochar, reveals how we can create systems that thrive under pressure and grow stronger with each challenge.
Comfrey: Nature’s Champion of Resilience
Comfrey is a plant that refuses to fail. Once its deep roots take hold, it thrives in poor soils, withstands drought, and regenerates even after being cut down repeatedly. It’s a hardy survivor, but comfrey doesn’t just endure—it contributes. Known as a dynamic accumulator, it mines nutrients from deep within the earth and brings them to the surface, making them available for other plants.
Beyond its ecological role, comfrey has centuries of medicinal use, earning the nickname "knitbone." Its leaves can heal wounds and restore health, a perfect metaphor for resilience. But as impressive as comfrey is, its true potential is unlocked when paired with another resilient force: biochar.
Biochar: The Silent Powerhouse of Soil Regeneration
Biochar, a carbon-rich material made by burning organic matter in low-oxygen conditions, is a game-changer for soil health. Its unique porous structure retains water, holds nutrients, and provides a haven for beneficial microbes. Soil enriched with biochar becomes drought-resistant, nutrient-rich, and biologically active—qualities that scream resilience.
Historically, ancient civilizations in the Amazon used biochar to transform barren soils into fertile agricultural hubs. Known as terra preta, these soils remain productive centuries later, highlighting biochar’s remarkable staying power.
Yet, like comfrey, biochar’s potential is magnified when it’s part of a larger system.
The Synergy: Comfrey and Biochar Together
Resilience turns into anti-fragility when systems go beyond mere survival and start improving under stress. Combining comfrey and biochar achieves exactly that.
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Nutrient Cycling and Retention\ Comfrey’s leaves, rich in nitrogen, potassium, and phosphorus, make an excellent mulch when cut and dropped onto the soil. However, these nutrients can wash away in heavy rains. Enter biochar. Its porous structure locks in the nutrients from comfrey, preventing runoff and keeping them available for plants. Together, they create a system that not only recycles nutrients but amplifies their effectiveness.
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Water Management\ Biochar holds onto water making soil not just drought-resistant but actively water-efficient, improving over time with each rain and dry spell.
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Microbial Ecosystems\ Comfrey enriches soil with organic matter, feeding microbial life. Biochar provides a home for these microbes, protecting them and creating a stable environment for them to multiply. Together, they build a thriving soil ecosystem that becomes more fertile and resilient with each passing season.
Resilient systems can withstand shocks, but anti-fragile systems actively use those shocks to grow stronger. Comfrey and biochar together form an anti-fragile system. Each addition of biochar enhances water and nutrient retention, while comfrey regenerates biomass and enriches the soil. Over time, the system becomes more productive, less dependent on external inputs, and better equipped to handle challenges.
This synergy demonstrates the power of designing systems that don’t just survive—they thrive.
Lessons Beyond the Soil
The partnership of comfrey and biochar offers a valuable lesson for our own lives. Resilience is an admirable trait, but anti-fragility takes us further. By combining complementary strengths and leveraging stress as an opportunity, we can create systems—whether in soil, business, or society—that improve under pressure.
Nature shows us that resilience isn’t the end goal. When we pair resilient tools like comfrey and biochar, we unlock a system that evolves, regenerates, and becomes anti-fragile. By designing with anti-fragility in mind, we don’t just bounce back, we bounce forward.
By designing with anti-fragility in mind, we don’t just bounce back, we bounce forward.
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2024-12-02 10:44:07Bitcoin and Fixed Income was Written By Wyatt O’Rourke. If you enjoyed this article then support his writing, directly, by donating to his lightning wallet: ultrahusky3@primal.net
Fiduciary duty is the obligation to act in the client’s best interests at all times, prioritizing their needs above the advisor’s own, ensuring honesty, transparency, and avoiding conflicts of interest in all recommendations and actions.
This is something all advisors in the BFAN take very seriously; after all, we are legally required to do so. For the average advisor this is a fairly easy box to check. All you essentially have to do is have someone take a 5-minute risk assessment, fill out an investment policy statement, and then throw them in the proverbial 60/40 portfolio. You have thousands of investment options to choose from and you can reasonably explain how your client is theoretically insulated from any move in the \~markets\~. From the traditional financial advisor perspective, you could justify nearly anything by putting a client into this type of portfolio. All your bases were pretty much covered from return profile, regulatory, compliance, investment options, etc. It was just too easy. It became the household standard and now a meme.
As almost every real bitcoiner knows, the 60/40 portfolio is moving into psyop territory, and many financial advisors get clowned on for defending this relic on bitcoin twitter. I’m going to specifically poke fun at the ‘40’ part of this portfolio.
The ‘40’ represents fixed income, defined as…
An investment type that provides regular, set interest payments, such as bonds or treasury securities, and returns the principal at maturity. It’s generally considered a lower-risk asset class, used to generate stable income and preserve capital.
Historically, this part of the portfolio was meant to weather the volatility in the equity markets and represent the “safe” investments. Typically, some sort of bond.
First and foremost, the fixed income section is most commonly constructed with U.S. Debt. There are a couple main reasons for this. Most financial professionals believe the same fairy tale that U.S. Debt is “risk free” (lol). U.S. debt is also one of the largest and most liquid assets in the market which comes with a lot of benefits.
There are many brilliant bitcoiners in finance and economics that have sounded the alarm on the U.S. debt ticking time bomb. I highly recommend readers explore the work of Greg Foss, Lawrence Lepard, Lyn Alden, and Saifedean Ammous. My very high-level recap of their analysis:
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A bond is a contract in which Party A (the borrower) agrees to repay Party B (the lender) their principal plus interest over time.
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The U.S. government issues bonds (Treasury securities) to finance its operations after tax revenues have been exhausted.
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These are traditionally viewed as “risk-free” due to the government’s historical reliability in repaying its debts and the strength of the U.S. economy
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U.S. bonds are seen as safe because the government has control over the dollar (world reserve asset) and, until recently (20 some odd years), enjoyed broad confidence that it would always honor its debts.
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This perception has contributed to high global demand for U.S. debt but, that is quickly deteriorating.
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The current debt situation raises concerns about sustainability.
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The U.S. has substantial obligations, and without sufficient productivity growth, increasing debt may lead to a cycle where borrowing to cover interest leads to more debt.
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This could result in more reliance on money creation (printing), which can drive inflation and further debt burdens.
In the words of Lyn Alden “Nothing stops this train”
Those obligations are what makes up the 40% of most the fixed income in your portfolio. So essentially you are giving money to one of the worst capital allocators in the world (U.S. Gov’t) and getting paid back with printed money.
As someone who takes their fiduciary responsibility seriously and understands the debt situation we just reviewed, I think it’s borderline negligent to put someone into a classic 60% (equities) / 40% (fixed income) portfolio without serious scrutiny of the client’s financial situation and options available to them. I certainly have my qualms with equities at times, but overall, they are more palatable than the fixed income portion of the portfolio. I don’t like it either, but the money is broken and the unit of account for nearly every equity or fixed income instrument (USD) is fraudulent. It’s a paper mache fade that is quite literally propped up by the money printer.
To briefly be as most charitable as I can – It wasn’t always this way. The U.S. Dollar used to be sound money, we used to have government surplus instead of mathematically certain deficits, The U.S. Federal Government didn’t used to have a money printing addiction, and pre-bitcoin the 60/40 portfolio used to be a quality portfolio management strategy. Those times are gone.
Now the fun part. How does bitcoin fix this?
Bitcoin fixes this indirectly. Understanding investment criteria changes via risk tolerance, age, goals, etc. A client may still have a need for “fixed income” in the most literal definition – Low risk yield. Now you may be thinking that yield is a bad word in bitcoin land, you’re not wrong, so stay with me. Perpetual motion machine crypto yield is fake and largely where many crypto scams originate. However, that doesn’t mean yield in the classic finance sense does not exist in bitcoin, it very literally does. Fortunately for us bitcoiners there are many other smart, driven, and enterprising bitcoiners that understand this problem and are doing something to address it. These individuals are pioneering new possibilities in bitcoin and finance, specifically when it comes to fixed income.
Here are some new developments –
Private Credit Funds – The Build Asset Management Secured Income Fund I is a private credit fund created by Build Asset Management. This fund primarily invests in bitcoin-backed, collateralized business loans originated by Unchained, with a secured structure involving a multi-signature, over-collateralized setup for risk management. Unchained originates loans and sells them to Build, which pools them into the fund, enabling investors to share in the interest income.
Dynamics
- Loan Terms: Unchained issues loans at interest rates around 14%, secured with a 2/3 multi-signature vault backed by a 40% loan-to-value (LTV) ratio.
- Fund Mechanics: Build buys these loans from Unchained, thus providing liquidity to Unchained for further loan originations, while Build manages interest payments to investors in the fund.
Pros
- The fund offers a unique way to earn income via bitcoin-collateralized debt, with protection against rehypothecation and strong security measures, making it attractive for investors seeking exposure to fixed income with bitcoin.
Cons
- The fund is only available to accredited investors, which is a regulatory standard for private credit funds like this.
Corporate Bonds – MicroStrategy Inc. (MSTR), a business intelligence company, has leveraged its corporate structure to issue bonds specifically to acquire bitcoin as a reserve asset. This approach allows investors to indirectly gain exposure to bitcoin’s potential upside while receiving interest payments on their bond investments. Some other publicly traded companies have also adopted this strategy, but for the sake of this article we will focus on MSTR as they are the biggest and most vocal issuer.
Dynamics
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Issuance: MicroStrategy has issued senior secured notes in multiple offerings, with terms allowing the company to use the proceeds to purchase bitcoin.
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Interest Rates: The bonds typically carry high-yield interest rates, averaging around 6-8% APR, depending on the specific issuance and market conditions at the time of issuance.
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Maturity: The bonds have varying maturities, with most structured for multi-year terms, offering investors medium-term exposure to bitcoin’s value trajectory through MicroStrategy’s holdings.
Pros
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Indirect Bitcoin exposure with income provides a unique opportunity for investors seeking income from bitcoin-backed debt.
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Bonds issued by MicroStrategy offer relatively high interest rates, appealing for fixed-income investors attracted to the higher risk/reward scenarios.
Cons
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There are credit risks tied to MicroStrategy’s financial health and bitcoin’s performance. A significant drop in bitcoin prices could strain the company’s ability to service debt, increasing credit risk.
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Availability: These bonds are primarily accessible to institutional investors and accredited investors, limiting availability for retail investors.
Interest Payable in Bitcoin – River has introduced an innovative product, bitcoin Interest on Cash, allowing clients to earn interest on their U.S. dollar deposits, with the interest paid in bitcoin.
Dynamics
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Interest Payment: Clients earn an annual interest rate of 3.8% on their cash deposits. The accrued interest is converted to Bitcoin daily and paid out monthly, enabling clients to accumulate Bitcoin over time.
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Security and Accessibility: Cash deposits are insured up to $250,000 through River’s banking partner, Lead Bank, a member of the FDIC. All Bitcoin holdings are maintained in full reserve custody, ensuring that client assets are not lent or leveraged.
Pros
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There are no hidden fees or minimum balance requirements, and clients can withdraw their cash at any time.
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The 3.8% interest rate provides a predictable income stream, akin to traditional fixed-income investments.
Cons
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While the interest rate is fixed, the value of the Bitcoin received as interest can fluctuate, introducing potential variability in the investment’s overall return.
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Interest rate payments are on the lower side
Admittedly, this is a very small list, however, these types of investments are growing more numerous and meaningful. The reality is the existing options aren’t numerous enough to service every client that has a need for fixed income exposure. I challenge advisors to explore innovative options for fixed income exposure outside of sovereign debt, as that is most certainly a road to nowhere. It is my wholehearted belief and call to action that we need more options to help clients across the risk and capital allocation spectrum access a sound money standard.
Additional Resources
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River: The future of saving is here: Earn 3.8% on cash. Paid in Bitcoin.
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MicroStrategy: MicroStrategy Announces Pricing of Offering of Convertible Senior Notes
Bitcoin and Fixed Income was Written By Wyatt O’Rourke. If you enjoyed this article then support his writing, directly, by donating to his lightning wallet: ultrahusky3@primal.net
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2024-11-23 15:03:47\ \ It was another historic week for both bitcoin and the Ten31 portfolio, as the world’s oldest, largest, most battle-tested cryptocurrency climbed to new all-time highs each day to close out the week just shy of the $100,000 mark. Along the way, bitcoin continued to accumulate institutional and regulatory wins, including the much-anticipated approval and launch of spot bitcoin ETF options and the appointment of several additional pro-bitcoin Presidential cabinet officials. The timing for this momentum was poetic, as this week marked the second anniversary of the pico-bottom of the 2022 bear market, a level that bitcoin has now hurdled to the tune of more than 6x despite the litany of bitcoin obituaries published at the time. The entirety of 2024 and especially the past month have further cemented our view that bitcoin is rapidly gaining a sense of legitimacy among institutions, fiduciaries, and governments, and we remain optimistic that this trend is set to accelerate even more into 2025.
Several Ten31 portfolio companies made exciting announcements this week that should serve to further entrench bitcoin’s institutional adoption. AnchorWatch, a first of its kind bitcoin insurance provider offering 1:1 coverage with its innovative use of bitcoin’s native properties, announced it has been designated a Lloyd’s of London Coverholder, giving the company unique, blue-chip status as it begins to write bitcoin insurance policies of up to $100 million per policy starting next month. Meanwhile, Battery Finance Founder and CEO Andrew Hohns appeared on CNBC to delve into the launch of Battery’s pioneering private credit strategy which fuses bitcoin and conventional tangible assets in a dual-collateralized structure that offers a compelling risk/return profile to both lenders and borrowers. Both companies are clearing a path for substantially greater bitcoin adoption in massive, untapped pools of capital, and Ten31 is proud to have served as lead investor for AnchorWatch’s Seed round and as exclusive capital partner for Battery.
As the world’s largest investor focused entirely on bitcoin, Ten31 has deployed nearly $150 million across two funds into more than 30 of the most promising and innovative companies in the ecosystem like AnchorWatch and Battery, and we expect 2025 to be the best year yet for both bitcoin and our portfolio. Ten31 will hold a first close for its third fund at the end of this year, and investors in that close will benefit from attractive incentives and a strong initial portfolio. Visit ten31.vc/funds to learn more and get in touch to discuss participating.\ \ Portfolio Company Spotlight
Primal is a first of its kind application for the Nostr protocol that combines a client, caching service, analytics tools, and more to address several unmet needs in the nascent Nostr ecosystem. Through the combination of its sleek client application and its caching service (built on a completely open source stack), Primal seeks to offer an end-user experience as smooth and easy as that of legacy social media platforms like Twitter and eventually many other applications, unlocking the vast potential of Nostr for the next billion people. Primal also offers an integrated wallet (powered by Strike BLACK) that substantially reduces onboarding and UX frictions for both Nostr and the lightning network while highlighting bitcoin’s unique power as internet-native, open-source money.
Selected Portfolio News
AnchorWatch announced it has achieved Llody’s Coverholder status, allowing the company to provide unique 1:1 bitcoin insurance offerings starting in December.\ \ Battery Finance Founder and CEO Andrew Hohns appeared on CNBC to delve into the company’s unique bitcoin-backed private credit strategy.
Primal launched version 2.0, a landmark update that adds a feed marketplace, robust advanced search capabilities, premium-tier offerings, and many more new features.
Debifi launched its new iOS app for Apple users seeking non-custodial bitcoin-collateralized loans.
Media
Strike Founder and CEO Jack Mallers joined Bloomberg TV to discuss the strong volumes the company has seen over the past year and the potential for a US bitcoin strategic reserve.
Primal Founder and CEO Miljan Braticevic joined The Bitcoin Podcast to discuss the rollout of Primal 2.0 and the future of Nostr.
Ten31 Managing Partner Marty Bent appeared on BlazeTV to discuss recent changes in the regulatory environment for bitcoin.
Zaprite published a customer testimonial video highlighting the popularity of its offerings across the bitcoin ecosystem.
Market Updates
Continuing its recent momentum, bitcoin reached another new all-time high this week, clocking in just below $100,000 on Friday. Bitcoin has now reached a market cap of nearly $2 trillion, putting it within 3% of the market caps of Amazon and Google.
After receiving SEC and CFTC approval over the past month, long-awaited options on spot bitcoin ETFs were fully approved and launched this week. These options should help further expand bitcoin’s institutional liquidity profile, with potentially significant implications for price action over time.
The new derivatives showed strong performance out of the gate, with volumes on options for BlackRock’s IBIT reaching nearly $2 billion on just the first day of trading despite surprisingly tight position limits for the vehicles.
Meanwhile, the underlying spot bitcoin ETF complex had yet another banner week, pulling in $3.4 billion in net inflows.
New reports suggested President-elect Donald Trump’s social media company is in advanced talks to acquire crypto trading platform Bakkt, potentially the latest indication of the incoming administration’s stance toward the broader “crypto” ecosystem.
On the macro front, US housing starts declined M/M again in October on persistently high mortgage rates and weather impacts. The metric remains well below pre-COVID levels.
Pockets of the US commercial real estate market remain challenged, as the CEO of large Florida developer Related indicated that developers need further rate cuts “badly” to maintain project viability.
US Manufacturing PMI increased slightly M/M, but has now been in contraction territory (<50) for well over two years.
The latest iteration of the University of Michigan’s popular consumer sentiment survey ticked up following this month’s election results, though so did five-year inflation expectations, which now sit comfortably north of 3%.
Regulatory Update
After weeks of speculation, the incoming Trump administration appointed hedge fund manager Scott Bessent to head up the US Treasury. Like many of Trump’s cabinet selections so far, Bessent has been a public advocate for bitcoin.
Trump also appointed Cantor Fitzgerald CEO Howard Lutnick – another outspoken bitcoin bull – as Secretary of the Commerce Department.
Meanwhile, the Trump team is reportedly considering creating a new “crypto czar” role to sit within the administration. While it’s unclear at this point what that role would entail, one report indicated that the administration’s broader “crypto council” is expected to move forward with plans for a strategic bitcoin reserve.
Various government lawyers suggested this week that the Trump administration is likely to be less aggressive in seeking adversarial enforcement actions against bitcoin and “crypto” in general, as regulatory bodies appear poised to shift resources and focus elsewhere.
Other updates from the regulatory apparatus were also directionally positive for bitcoin, most notably FDIC Chairman Martin Gruenberg’s confirmation that he plans to resign from his post at the end of President Biden’s term.
Many critics have alleged Gruenberg was an architect of “Operation Chokepoint 2.0,” which has created banking headwinds for bitcoin companies over the past several years, so a change of leadership at the department is likely yet another positive for the space.
SEC Chairman Gary Gensler also officially announced he plans to resign at the start of the new administration. Gensler has been the target of much ire from the broader “crypto” space, though we expect many projects outside bitcoin may continue to struggle with questions around the Howey Test.
Overseas, a Chinese court ruled that it is not illegal for individuals to hold cryptocurrency, even though the country is still ostensibly enforcing a ban on crypto transactions.
Noteworthy
The incoming CEO of Charles Schwab – which administers over $9 trillion in client assets – suggested the platform is preparing to “get into” spot bitcoin offerings and that he “feels silly” for having waited this long. As this attitude becomes more common among traditional finance players, we continue to believe that the number of acquirers coming to market for bitcoin infrastructure capabilities will far outstrip the number of available high quality assets.
BlackRock’s 2025 Thematic Outlook notes a “renewed sense of optimism” on bitcoin among the asset manager’s client base due to macro tailwinds and the improving regulatory environment. Elsewhere, BlackRock’s head of digital assets indicated the firm does not view bitcoin as a “risk-on” asset.
MicroStrategy, which was a sub-$1 billion market cap company less than five years ago, briefly breached a $100 billion equity value this week as it continues to aggressively acquire bitcoin. The company now holds nearly 350,000 bitcoin on its balance sheet.
Notably, Allianz SE, Germany’s largest insurer, spoke for 25% of MicroStrategy’s latest $3 billion convertible note offering this week, suggesting growing appetite for bitcoin proxy exposure among more restricted pools of capital.
The ongoing meltdown of fintech middleware provider Synapse has left tens of thousands of customers with nearly 100% deposit haircuts as hundreds of millions in funds remain missing, the latest unfortunate case study in the fragility of much of the US’s legacy banking stack.
Travel
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BitcoinMENA, Dec 9-10
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Nashville BitDevs, Dec 10
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Austin BitDevs, Dec 19
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@ fe02e8ec:f07fbe0b
2025-04-28 21:23:01Die baldige Ex-Außenministerin Annalena Baerbock fordert einen radikalen Wandel in der Energieversorgung hin zu einer feministischen Energiepolitik. Wie sich gezeigt habe, so sei das spanische Netz am 28.04.25 wegen toxischer Männlichkeit zusammengebrochen. Es hätte sich herausgestellt, dass alle Überlandleitungen von Männern gebaut und installiert worden waren! Dies, so Baerbock, sei ein untragbarer Zustand, der durch den resultierenden Blackout für viel Leid und Ärger gesorgt habe. Selbst Haarföhns waren nicht mehr in Betrieb zu nehmen!
«Nur Frauen sind in der Lage, derart empfindliche und sensible Ströme zu leiten. Denn Strömen liegt in ihrer Natur. Sie benötigen keine Messgeräte oder teure Transformatoren für die Strömung, da Mutter Natur – eine Frau, wie der Name schon sagt – für alles selbst sorgen wird. Man muss nur verhindern, dass maskuline Energien verströmt werden, die nämlich den Strom um 360 Grad drehen würden.»
Mit dieser Analyse empfiehlt sich Annalena B. nicht nur für höchste UN Ämter sondern ebenfalls für den Vorsitz des Weltklimarates IPCC. Aus informierten Kreisen ist zu hören, dass sie nur noch die Papstwahl abwarten möchte - schließlich wäre es Zeit für eine Päpstin - bis sie sich fürs Klima bewerben würde. Um weitere Blackouts abzuschrecken überlegt sie angeblich, ihren Namen in Blackbock zu ändern. Möglich wäre allerdings auch, dass dies alles nur erfunden ist.
Mehr Satirisches und Ernstes: www.thomas-eisinger.de
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@ f1f59549:f4121cfe
2025-04-28 20:21:28Ego is a fundamental part of the human condition. It provides us with the necessary ability to separate and compartmentalize ourselves from the rest of the world.
Our ego allows us to exist in the chaos of existence.
The spiritual path is seen as a way to “escape the ego” and achieve a higher state of consciousness. A state where the confines of the ego no longer hold us back from seeing things as they are and allow us to experience true bliss.
But there’s a paradox to this whole process.
By seeking spiritual advancement, we have to accept that there is something to improve and someone to do the improving.
This suggests that this improvement somehow makes us better than someone who has not achieved similar levels of improvement.
This kind of thinking is inherently egotistical.
As we advance down the spiritual path — escaping the grasp of ego and removing attachments — spirituality itself can end up feeding the ego. Most of the time, we don’t even notice it while it’s happening.
It’s an unconscious process that develops along the way. Only after we notice it within ourselves can we course-correct.
I acknowledge that writing this article is itself an example of spiritual egotism.
Who am I to talk about dissolving the ego? What are my goals for writing this piece? By pointing out the hypocrisy behind having spiritual convictions or goals, am I in some way suggesting myself to be free from these convictions?
I am in no way exempt from the clutches of spiritual egotism — I certainly have not reached enlightenment.
But the paradox is that if I had, I probably wouldn’t be talking about it now.
This is known in Buddhism as the “noble silence.”
The only way to understand what it truly means to “dissolve the ego” is by discovering it spontaneously. It is not something that can be taught.
This is the approach Zen Buddhism takes to reach enlightenment. By accepting that the truth cannot be told, the master does not try to speak it. Instead, the master simply pops the ego of his students as it bubbles up from time to time.
This employs a concept called “the middle way.”
You know that you must dissolve your ego. But you can’t, so trying it is also pointless. The middle way says, “I will do my best to escape my ego, but I accept that I will fail.”
One thing we can do is pay attention to our failings. When you perform a kind act for another person, consider the motivation behind why you did it. Was it for their sake or for yours?
If you’re able to convince yourself these acts come from selfless motives — take notice — your ego has just presented itself.
The Paradox of Spiritual Development
You want to improve yourself by changing your consciousness. But the self that needs to be improved is the same one doing the improving.
This is a paradox.
As egotistical beings, we cannot be without ego.
At its core, the very reason one seeks to dissolve the ego is to improve oneself. Whether it’s to feel well, perform more effectively, or improve relationships with others — the very desire to achieve this improvement is egotistical.
This forms a negative feedback loop. The more we attempt to remove the ego, the more egotistical we become.
Essentially, the harder we try to avoid it, the more we become it.
By choosing to take a path toward enlightenment — we can not reach enlightenment.
The great Alan Watts says it best (paraphrasing):
“As long as you think and feel that you are contained in your bag of skin, there is no way whatsoever to behave unselfishly. You can imitate unselfishness. Undergo all kinds of highly refined forms of unselfishness. But you’re still tied to the gold chains of your good deeds.”
Is There A Solution?
Not exactly, but we may be able to move closer toward enlightenment by accepting its impossibility. Simply allowing ourselves to notice this paradox in ourselves may allow us to redirect course toward the middle path once again.
Let’s look at the story of the Buddha as an example.
Siddhartha was an ascetic for several decades. Acetics of the time would do all sorts of austere techniques. He would starve himself, sleep out in the cold, and purposely subject himself to discomfort and hardship — all an attempt to dissociate from his physical body and, thus, his ego.
The goal was to “reach” enlightenment.
But all the attempts the Buddha made to get himself out of the trap failed.
Siddhartha only achieved enlightenment when he realized that the trap and the trapped are one. By this realization, there isn’t any trap left.
He realized that the spiritual journey isn’t about being on some sort of “higher level.” There is no “end goal” or plateau to reach.
The spiritual teacher Eckhart Tolle puts it another way:
“The ego has many ideas. It says, ‘I want to be a spiritual person. I want to be recognized as a spiritual person. I want to be more spiritual than all these people. And I’m definitely more spiritual than you… The essential dysfunction of the ego is still operating. This is why we have the phrase ‘the road to hell is paved with good intentions’… You have to reach the place within yourself that is unconditioned; that is what I sometimes call formless.”
Spiritual Arrogance is a Blind Spot on the Path to Enlightenment
Spirituality can help you release the firm grasp your ego has over you, but it can also reinforce it.
Spiritual arrogance arises when someone develops an identity about seeking a path to enlightenment. It’s sometimes referred to as “spiritual narcissism.”
It’s what happens when you feel like people just “aren’t quite on your level.”
“High vibrations,” right?
As the psychiatrist Gerald May wrote in his 1983 book Will and Spirit:
“Simply stated, spiritual narcissism is the unconscious use of spiritual practice, experience, and insight to increase rather than decrease self-importance.”
Spiritual arrogance emerges naturally as we engage on the spiritual path. We fool ourselves into thinking that by taking steps to become more “enlightened,” we’re in some way superior to those who do not.
We leverage spiritual practices — like yoga, meditation, or other forms of spiritual self-care — as tokens of our supposed enlightenment or moral superiority.
We may use our "spiritual" identity to look down upon others who don't share these practices or beliefs, to dodge personal responsibilities or interpersonal challenges, or to create a persona that earns us social capital.
This condition damages both the individual, who is missing the opportunity for genuine spiritual or personal growth, and the community around them, which may be subjected to their judgment, manipulation, or neglect.
The presentation of spiritual arrogance comes in all shapes and sizes.
Let’s say you join a church group or other spiritual group. Members become spiritually proud. They believe they are the ones who have the right teaching. Everybody else is a bit off the track.
Then someone comes and one-ups them. “In our circles, we’re very tolerant. And we accept all teachings and all ways as leading to the one.”
But they’re just playing the game of “we’re more tolerant than you are.”
In essence, they become a victim of their own spiritual practice — they’re blind to the paradox of the spiritual path and become lost in their own egotistical beliefs that their “way” is somehow better than everybody else’s.
Of course, the other side of this paradox comes from noticing the people around you who demonstrate signs of spiritual arrogance. Looking at someone in their arrogance can make you feel like they’re inferior.
It’s another trap — but it comes from the completely opposite angle.
We cannot escape it.
Can Spiritual Arrogance Be Avoided?
Probably not, but by learning to recognize it, we may be able to re-align ourselves towards the middle path when it inevitably appears over and over again throughout our lives.
Here are some ideas to think about for avoiding the paradoxical nature of spiritual arrogance:
1. Find your intuitive expertise & learn to flow with it
Taoists call this practice “wu-wei.” Zen Buddhists call it “mushin.” Both loosely refer to an absence of striving. It’s the constant striving to improve or reach “higher vibrations” that causes this paradox to manifest in a big way.
2. Stop judging others based on their “level”
Spirituality is not a competition; you are not here to “help” others on their spiritual journey.
3. Remain skeptical about ideas, mentors, & gurus
Nobody truly has it figured out, and if they do, they certainly aren’t talking about it.
4. Embrace the beginner’s mind
Avoid bringing your preconceptions and opinions to new ideas. Act as though you’re a child experiencing everything for the first time.
5. Be conscious about your use of social media
This is especially important when it comes to sharing your spiritual development publicly. By sharing with others, you’re feeding the ego hiding behind the curtain.
6. Avoid over-intellectualizing spirituality
This comes at the expense of direct, personal, or experiential understandings of these concepts in daily life.
7. Beware of toxic positivity
This is the belief that no matter how dire or difficult a situation is, people should maintain a positive mindset. This invalidates an authentic human emotional experience and is a form of spiritual bypassing.
Quotes on Spiritual Arrogance
“The biggest ego trip going is getting rid of your ego.” — Alan Watts
“If it’s so easy to lose Jim Carey, who’s Jim Carey?” — Jim Carey
“If an organ is working properly, you don’t feel it. When you’re thinking clearly, your brain isn’t getting in your way.” — Alan Watts
“To go beyond is as wrong as to fall short.” — Confucius
“For things to reveal themselves to us, we need to be ready to abandon our views about them.” — Thich Nhat Hanh
“No matter what the practice or teaching, ego loves to wait in ambush to appropriate spirituality for its own survival and gain.” ― Chögyam Trungpa
Zen Koans About Spiritual Arrogance
The beauty of Zen koans is that they can be used to “impart wisdom” that can’t otherwise be explained by words.
They’re told as a sort of joke — only the punchline isn’t spontaneous laughter — but spontaneous glimpses of enlightenment.
They all deliver some form of unexplainable wisdom that you either get at the punchline or you don’t. Just like a joke, if the koan has to be explained, it loses its power.
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→ This post was originally published on The Zen Psychedelic Substack
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@ 87730827:746b7d35
2024-11-20 09:27:53Original: https://techreport.com/crypto-news/brazil-central-bank-ban-monero-stablecoins/
Brazilian’s Central Bank Will Ban Monero and Algorithmic Stablecoins in the Country
Brazil proposes crypto regulations banning Monero and algorithmic stablecoins and enforcing strict compliance for exchanges.
KEY TAKEAWAYS
- The Central Bank of Brazil has proposed regulations prohibiting privacy-centric cryptocurrencies like Monero.
- The regulations categorize exchanges into intermediaries, custodians, and brokers, each with specific capital requirements and compliance standards.
- While the proposed rules apply to cryptocurrencies, certain digital assets like non-fungible tokens (NFTs) are still ‘deregulated’ in Brazil.
In a Notice of Participation announcement, the Brazilian Central Bank (BCB) outlines regulations for virtual asset service providers (VASPs) operating in the country.
In the document, the Brazilian regulator specifies that privacy-focused coins, such as Monero, must be excluded from all digital asset companies that intend to operate in Brazil.
Let’s unpack what effect these regulations will have.
Brazil’s Crackdown on Crypto Fraud
If the BCB’s current rule is approved, exchanges dealing with coins that provide anonymity must delist these currencies or prevent Brazilians from accessing and operating these assets.
The Central Bank argues that currencies like Monero make it difficult and even prevent the identification of users, thus creating problems in complying with international AML obligations and policies to prevent the financing of terrorism.
According to the Central Bank of Brazil, the bans aim to prevent criminals from using digital assets to launder money. In Brazil, organized criminal syndicates such as the Primeiro Comando da Capital (PCC) and Comando Vermelho have been increasingly using digital assets for money laundering and foreign remittances.
… restriction on the supply of virtual assets that contain characteristics of fragility, insecurity or risks that favor fraud or crime, such as virtual assets designed to favor money laundering and terrorist financing practices by facilitating anonymity or difficulty identification of the holder.
The Central Bank has identified that removing algorithmic stablecoins is essential to guarantee the safety of users’ funds and avoid events such as when Terraform Labs’ entire ecosystem collapsed, losing billions of investors’ dollars.
The Central Bank also wants to control all digital assets traded by companies in Brazil. According to the current proposal, the national regulator will have the power to ask platforms to remove certain listed assets if it considers that they do not meet local regulations.
However, the regulations will not include NFTs, real-world asset (RWA) tokens, RWA tokens classified as securities, and tokenized movable or real estate assets. These assets are still ‘deregulated’ in Brazil.
Monero: What Is It and Why Is Brazil Banning It?
Monero ($XMR) is a cryptocurrency that uses a protocol called CryptoNote. It launched in 2013 and ‘erases’ transaction data, preventing the sender and recipient addresses from being publicly known. The Monero network is based on a proof-of-work (PoW) consensus mechanism, which incentivizes miners to add blocks to the blockchain.
Like Brazil, other nations are banning Monero in search of regulatory compliance. Recently, Dubai’s new digital asset rules prohibited the issuance of activities related to anonymity-enhancing cryptocurrencies such as $XMR.
Furthermore, exchanges such as Binance have already announced they will delist Monero on their global platforms due to its anonymity features. Kraken did the same, removing Monero for their European-based users to comply with MiCA regulations.
Data from Chainalysis shows that Brazil is the seventh-largest Bitcoin market in the world.
In Latin America, Brazil is the largest market for digital assets. Globally, it leads in the innovation of RWA tokens, with several companies already trading this type of asset.
In Closing
Following other nations, Brazil’s regulatory proposals aim to combat illicit activities such as money laundering and terrorism financing.
Will the BCB’s move safeguard people’s digital assets while also stimulating growth and innovation in the crypto ecosystem? Only time will tell.
References
Cassio Gusson is a journalist passionate about technology, cryptocurrencies, and the nuances of human nature. With a career spanning roles as Senior Crypto Journalist at CriptoFacil and Head of News at CoinTelegraph, he offers exclusive insights on South America’s crypto landscape. A graduate in Communication from Faccamp and a post-graduate in Globalization and Culture from FESPSP, Cassio explores the intersection of governance, decentralization, and the evolution of global systems.
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@ 5e5fc143:393d5a2c
2024-11-19 10:20:25Now test old reliable front end Stay tuned more later Keeping this as template long note for debugging in future as come across few NIP-33 post edit issues
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@ af9c48b7:a3f7aaf4
2024-11-18 20:26:07Chef's notes
This simple, easy, no bake desert will surely be the it at you next family gathering. You can keep it a secret or share it with the crowd that this is a healthy alternative to normal pie. I think everyone will be amazed at how good it really is.
Details
- ⏲️ Prep time: 30
- 🍳 Cook time: 0
- 🍽️ Servings: 8
Ingredients
- 1/3 cup of Heavy Cream- 0g sugar, 5.5g carbohydrates
- 3/4 cup of Half and Half- 6g sugar, 3g carbohydrates
- 4oz Sugar Free Cool Whip (1/2 small container) - 0g sugar, 37.5g carbohydrates
- 1.5oz box (small box) of Sugar Free Instant Chocolate Pudding- 0g sugar, 32g carbohydrates
- 1 Pecan Pie Crust- 24g sugar, 72g carbohydrates
Directions
- The total pie has 30g of sugar and 149.50g of carboydrates. So if you cut the pie into 8 equal slices, that would come to 3.75g of sugar and 18.69g carbohydrates per slice. If you decided to not eat the crust, your sugar intake would be .75 gram per slice and the carborytrates would be 9.69g per slice. Based on your objective, you could use only heavy whipping cream and no half and half to further reduce your sugar intake.
- Mix all wet ingredients and the instant pudding until thoroughly mixed and a consistent color has been achieved. The heavy whipping cream causes the mixture to thicken the more you mix it. So, I’d recommend using an electric mixer. Once you are satisfied with the color, start mixing in the whipping cream until it has a consistent “chocolate” color thorough. Once your satisfied with the color, spoon the mixture into the pie crust, smooth the top to your liking, and then refrigerate for one hour before serving.
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@ 41e6f20b:06049e45
2024-11-17 17:33:55Let me tell you a beautiful story. Last night, during the speakers' dinner at Monerotopia, the waitress was collecting tiny tips in Mexican pesos. I asked her, "Do you really want to earn tips seriously?" I then showed her how to set up a Cake Wallet, and she started collecting tips in Monero, reaching 0.9 XMR. Of course, she wanted to cash out to fiat immediately, but it solved a real problem for her: making more money. That amount was something she would never have earned in a single workday. We kept talking, and I promised to give her Zoom workshops. What can I say? I love people, and that's why I'm a natural orange-piller.
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@ bc52210b:20bfc6de
2025-04-28 20:13:25
Imagine a world where clean, safe, and efficient nuclear power can be delivered to any corner of the globe, powering everything from small villages to bustling cities. This vision is becoming a reality with the development of nuclear modular plants—compact, portable nuclear reactors that can be shipped in standard containers and set up quickly to provide reliable energy. These innovative power sources use fission—the process of splitting atomic nuclei to release energy, the same fundamental principle that powers traditional nuclear plants—but with a twist: they utilize thorium as fuel and a molten salt system for cooling and fuel delivery. This combination offers a host of benefits that could revolutionize how we think about nuclear energy.
Portability and Deployment
One of the most significant advantages of these nuclear modular plants is their portability. Designed to fit within standard shipping containers, these reactors can be transported by truck, ship, or even air to virtually any location. This makes them ideal for remote communities, disaster relief efforts, or military operations where traditional power infrastructure is lacking or damaged. Setting up a conventional power plant typically takes years, but these modular units can be operational in a matter of weeks, providing a rapid solution to energy needs.
Safety Features
Safety is a paramount concern in nuclear energy, and modular thorium molten salt reactors (MSRs) offer several inherent safety advantages. Unlike traditional reactors that use water under high pressure, MSRs operate at atmospheric pressure, eliminating the risk of pressure-related accidents. The fuel is dissolved in the molten salt, which means there's no solid fuel that could melt down. If the reactor overheats, the salt expands, naturally slowing the fission reaction—a built-in safety mechanism. Additionally, thorium-based fuels produce less long-lived radioactive waste, reducing the long-term environmental impact.
Efficiency and Abundance
Thorium is a more abundant resource than uranium, with estimates suggesting it is three to four times more plentiful in the Earth's crust. This abundance makes thorium a sustainable fuel choice for the future. Moreover, MSRs can operate at higher temperatures than traditional reactors, leading to greater thermal efficiency. This means more electricity can be generated from the same amount of fuel, making the energy production process more efficient and cost-effective in the long run.
Scalability
The modular design of these reactors allows for scalability to meet varying power demands. A single unit might power a small community, while multiple units can be combined to serve larger towns or cities. This flexibility is particularly useful for growing populations or regions with fluctuating energy needs. As demand increases, additional modules can be added without the need for extensive new infrastructure.
Cost-Effectiveness
While the initial investment in nuclear modular plants may be significant, the long-term operational costs can be lower than traditional power sources. The high efficiency of MSRs means less fuel is needed over time, and the reduced waste production lowers disposal costs. Additionally, the ability to mass-produce these modular units could drive down manufacturing costs, making nuclear power more accessible and affordable.
Environmental Impact
Nuclear power is already one of the cleanest energy sources in terms of carbon emissions, and thorium MSRs take this a step further. By producing less long-lived waste and utilizing a more abundant fuel, these reactors offer a more sustainable path for nuclear energy. Furthermore, their ability to provide reliable baseload power can help reduce reliance on fossil fuels, contributing to global efforts to combat climate change.
Challenges and Considerations
Despite these benefits, there are challenges to overcome before nuclear modular plants can be widely deployed. The technology for thorium MSRs is still in the developmental stage, with ongoing research needed to address issues such as material corrosion and fuel processing. Regulatory frameworks will also need to adapt to this new type of reactor, and public perception of nuclear energy remains a hurdle in many regions. However, with continued investment and innovation, these obstacles can be addressed.
Conclusion
In conclusion, nuclear modular plants using thorium and molten salt systems represent a promising advancement in nuclear technology. Their portability, safety features, efficiency, scalability, and environmental benefits make them an attractive option for meeting the world's growing energy needs. While challenges remain, the potential of these reactors to provide clean, reliable power to communities around the globe is undeniable. As research and development continue, we may soon see a new era of nuclear energy that is safer, more efficient, and more accessible than ever before.
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@ fd208ee8:0fd927c1
2024-11-08 08:08:30You have no idea
I regularly read comments from people, on here, wondering how it's possible to marry -- or even simply be friends! -- with someone who doesn't agree with you on politics. I see this sentiment expressed quite often, usually in the context of Bitcoin, or whatever pig is currently being chased through the village, as they say around here.
It seems rather sensible, but I don't think it's as hard, as people make it out to be. Further, I think it's a dangerous precondition to set, for your interpersonal relationships, because the political field is constantly in flux. If you determine who you will love, by their opinions, do you stop loving them if their opinions change, or if the opinions they have become irrelevant and a new set of opinions are needed -- and their new ones don't match your new ones? We could see this happen to relationships en masse, during the Covid Era, and I think it happens every day, in a slow grind toward the disintegration of interpersonal discourse.
I suspect many people do stop loving, at that point, as they never really loved the other person for their own sake, they loved the other person because they thought the other person was exactly like they are. But no two people are alike, and the longer you are in a relationship with someone else, the more the initial giddiness wears off and the trials and tribulations add up, the more you notice how very different you actually are. This is the point, where best friends and romantic couples say, We just grew apart.
But you were always apart. You were always two different people. You just didn't notice, until now.
I've also always been surprised at how many same-party relationships disintegrate because of some disagreement over some particular detail of some particular topic, that they generally agree on. To me, it seems like an irrelevant side-topic, but they can't stand to be with this person... and they stomp off. So, I tend to think that it's less that opinions need to align to each other, but rather than opinions need to align in accordance with the level of interpersonal tolerance they can bring into the relationship.
I was raised by relaxed revolutionaries
Maybe I see things this way because my parents come from two diverging political, cultural, national, and ethnic backgrounds, and are prone to disagreeing about a lot of "important" (to people outside their marriage) things, but still have one of the healthiest, most-fruitful, and most long-running marriages of anyone I know, from that generation. My parents, you see, aren't united by their opinions. They're united by their relationship, which is something outside of opinions. Beyond opinions. Relationships are what turn two different people into one, cohesive unit, so that they slowly grow together. Eventually, even their faces merge, and their biological clocks tick to the same rhythm. They eventually become one entity that contains differing opinions about the same topics.
It's like magic, but it's the result of a mindset, not a worldview. Or, as I like to quip:
The best way to stay married, is to not get divorced.
My parents simply determined early on, that they would stay together, and whenever they would find that they disagreed on something that didn't directly pertain to their day-to-day existence with each other they would just agree-to-disagree about that, or roll their eyes, and move on. You do you. Live and let live.
My parents have some of the most strongly held personal opinions of any people I've ever met, but they're also incredibly tolerant and can get along with nearly anyone, so their friends are a confusing hodgepodge of people we liked and found interesting enough to keep around. Which makes their house parties really fun, and highly unusual, in this day and age of mutual-damnation across the aisle.
The things that did affect them, directly, like which school the children should attend or which country they should live in, etc. were things they'd sit down and discuss, and somehow one opinion would emerge, and they'd again... move on.
And that's how my husband and I also live our lives, and it's been working surprisingly well. No topics are off-limits to discussion (so long as you don't drone on for too long), nobody has to give up deeply held beliefs, or stop agitating for the political decisions they prefer.
You see, we didn't like that the other always had the same opinion. We liked that the other always held their opinions strongly. That they were passionate about their opinions. That they were willing to voice their opinions; sacrifice to promote their opinions. And that they didn't let anyone browbeat or cow them, for their opinions, not even their best friends or their spouse. But that they were open to listening to the other side, and trying to wrap their mind around the possibility that they might just be wrong about something.
We married each other because we knew: this person really cares, this person has thought this through, and they're in it, to win it. What "it" is, is mostly irrelevant, so long as it doesn't entail torturing small animals in the basement, or raising the children on a diet of Mountain Dew and porn, or something.
Live and let live. At least, it's never boring. At least, there's always something to ~~argue~~ talk about. At least, we never think... we've just grown apart.
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@ e516ecb8:1be0b167
2025-04-28 19:56:30El Gran Apagón y la Tormenta Perfecta: ¿Hacia Dónde Nos Llevan?
Recientemente, un corte de luz masivo dejó a oscuras a España, Portugal y parte de Francia. Como suele pasar cuando las explicaciones escasean o no se quieren dar, la narrativa oficial apuntó al cambio climático. Un artículo de ABC sugiere que una "vibración atmosférica inducida" por "variaciones extremas de temperatura" podría ser la culpable (ABC, 28/04/2025). Pero, ¿es realmente el calentamiento global el villano de esta historia, o estamos ante un síntoma de algo más grande y complejo?
Una Red de Decisiones Interconectadas
Nada ocurre en el vacío, y este apagón no es una excepción. La generación de electricidad, cada vez más dependiente de fuentes renovables no convencionales, enfrenta retos de estabilidad y costos crecientes. A esto se suma la presión política para transformar nuestras vidas bajo la bandera de la sostenibilidad. Por ejemplo, la idea de la "ciudad de 15 minutos", donde todo lo que necesitas está a un corto paseo o pedaleo, suena ideal. Pero en lugares como el Reino Unido, esta visión viene acompañada de cámaras de vigilancia que controlan tus movimientos, justificadas por la "seguridad" o la "eficiencia".
Mientras tanto, la Unión Europea avanza hacia un futuro donde, para 2030, todos los autos deberán ser eléctricos. Con una red eléctrica inestable y precios de energía disparados, ¿cómo se supone que cargaremos esos vehículos? La respuesta parece ser: no lo hagas. Muévete en bicicleta, quédate cerca de casa. La movilidad, un símbolo de libertad, se está restringiendo para las masas, mientras la élite política y corporativa sigue surcando los cielos en jets privados para "combatir el cambio climático" o, como Bernie Sanders y AOC, para denunciar la oligarquía desde sus podios privilegiados.
Dependencia Eléctrica: Una Trampa Silenciosa
La electrificación no se detiene en los autos. Los edificios modernos tienden a ser completamente eléctricos, y en algunos lugares ya se habla de prohibir las cocinas a gas. Imagina un futuro donde dependes de la red eléctrica para cocinar una simple salchicha. Ahora, suma un apagón como el reciente. Sin electricidad, no hay cena, no hay calefacción, no hay nada. La automatización total, que nos venden como progreso, nos hace más vulnerables a estos colapsos.
El Euro Digital: Control Absoluto
La Unión Europea también está empujando el euro digital, una moneda que promete conveniencia, pero a un costo altísimo. Con ella, cada transacción será rastreable, y las autoridades podrían restringir su uso para ciertos fines o incluso "quemar" euros digitales a voluntad para controlar su valor frente a otras monedas. ¿Qué pasa con la libertad financiera? ¿Qué pasa con la privacidad? Este sistema, combinado con una red eléctrica frágil, pinta un panorama donde el ciudadano promedio queda atrapado en una jaula tecnológica.
Criptomonedas, Efectivo y Oro: ¿Alternativas Reales?
Las criptomonedas, que muchos ven como una salida, también son vulnerables a los cortes de energía. Sin electricidad, no hay blockchain. El efectivo, por su parte, sigue siendo una opción, pero se desgasta, pierde valor con la inflación y, en muchos lugares, está siendo demonizado en favor de pagos digitales. Luego está el oro, el refugio histórico. Pero incluso aquí hay trampas: viajar con oro puede convertirte en sospechoso en un aeropuerto, obligado a explicar el origen de tu propiedad. ¿Desde cuándo debemos justificar lo que es nuestro? ¿Dónde quedó la presunción de inocencia?
"No Tendrás Nada y Serás Feliz"
Cuando uno conecta los puntos —apagones, electrificación forzada, monedas digitales, restricciones de movilidad— es difícil no pensar en el famoso eslogan atribuido al Foro Económico Mundial: "No tendrás nada y serás feliz". Mencionarlo te hace ganar el sello de "conspiranóico", pero las señales están ahí. La pregunta es: ¿estamos caminando hacia un futuro de control total disfrazado de sostenibilidad, o es solo una serie de coincidencias desafortunadas?
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@ 4ba8e86d:89d32de4
2024-11-07 13:56:21Tutorial feito por Grom mestre⚡poste original abaixo:
http://xh6liiypqffzwnu5734ucwps37tn2g6npthvugz3gdoqpikujju525yd.onion/240277/tutorial-criando-e-acessando-sua-conta-de-email-pela-i2p?show=240277#q240277
Bom dia/tarde/noite a todos os camaradas. Seguindo a nossa série de tutoriais referentes a tecnologias essenciais para a segurança e o anonimato dos usuários, sendo as primeiras a openPGP e a I2P, lhes apresento mais uma opção para expandir os seus conhecimentos da DW. Muitos devem conhecer os serviços de mail na onion como DNMX e mail2tor, mas e que tal um serviço de email pela I2P. Nesse tutorial eu vou mostrar a vocês como criar a sua primeira conta no hq.postman.i2p e a acessar essa conta.
É importante que vocês tenham lido a minha primeira série de tutoriais a respeito de como instalar, configurar e navegar pela I2P nostr:nevent1qqsyjcz2w0e6d6dcdeprhuuarw4aqkw730y542dzlwxwssneq3mwpaspz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsygzt4r5x6tvh39kujvmu8egqdyvf84e3w4e0mq0ckswamfwcn5eduspsgqqqqqqsyp5vcq Esse tutorial é um pré-requisito para o seguinte e portanto recomendo que leia-os antes de prosseguir com o seguinte tutorial. O tutorial de Kleopatra nostr:nevent1qqs8h7vsn5j6qh35949sa60dms4fneussmv9jd76n24lsmtz24k0xlqzyp9636rd9ktcjmwfxd7ru5qxjxyn6uch2uhas8utg8wa5hvf6vk7gqcyqqqqqqgecq8f7 é complementar dado que é extremamente recomendado assinar e criptografar as mensagens que seguem por emails pela DW. Sem mais delongas, vamos ao tutorial de fato.
1. Criando uma conta de email no hq.postman
Relembrando: Esse tutorial considera que você já tenha acesso à I2P. Entre no seu navegador e acesse o endereço hq.postman.i2p. O roteador provavelmente já contém esse endereço no seu addressbook e não haverá a necessidade de inserir o endereço b32 completo. Após entrar no site vá para a página '1 - Creating a mailbox' https://image.nostr.build/d850379fe315d2abab71430949b06d3fa49366d91df4c9b00a4a8367d53fcca3.jpg
Nessa página, insira as credenciais de sua preferências nos campos do formulário abaixo. Lembre-se que o seu endereço de email aceita apenas letras e números. Clique em 'Proceed' depois que preencher todos os campos. https://image.nostr.build/670dfda7264db393e48391f217e60a2eb87d85c2729360c8ef6fe0cf52508ab4.jpg
Uma página vai aparecer pedindo para confirmar as credenciais da sua nova conta. Se tudo estiver certo apenas clique em 'Confirm and Create Mailbox'. Se tudo ocorrer como conforme haverá uma confirmação de que a sua nova conta foi criada com sucesso. Após isso aguarde por volta de 5 minutos antes de tentar acessá-la, para que haja tempo suficiente para o servidor atualizar o banco de dados. https://image.nostr.build/ec58fb826bffa60791fedfd9c89a25d592ac3d11645b270c936c60a7c59c067f.jpg https://image.nostr.build/a2b7710d1e3cbb36431acb9055fd62937986b4da4b1a1bbb06d3f3cb1f544fd3.jpg
Pronto! Sua nova conta de email na I2P foi criada. Agora vamos para a próxima etapa: como acessar a sua conta via um cliente de email.
2. Configurando os túneis cliente de SMTP e POP3
O hq.postman não possui um cliente web que nos permite acessar a nossa conta pelo navegador. Para isso precisamos usar um cliente como Thunderbird e configurar os túneis cliente no I2Pd que serão necessários para o Thunderbird se comunicar com o servidor pela I2P.
Caso não tenha instalado o Thunderbird ainda, faça-o agora antes de prosseguir.
Vamos configurar os túneis cliente do servidor de email no nosso roteador. Para isso abra um terminal ou o seu gestor de arquivos e vá para a pasta de configuração de túneis do I2P. Em Linux esse diretório se localiza em /etc/i2pd/tunnels.d. Em Windows, essa pasta se localiza em C:\users\user\APPDATA\i2pd. Na pasta tunnels.d crie dois arquivos: smtp.postman.conf e pop-postman.conf. Lembre-se que em Linux você precisa de permissões de root para escrever na pasta de configuração. Use o comando sudoedit
para isso. Edite-os conforme as imagens a seguir:
Arquivo pop-postman.conf https://image.nostr.build/7e03505c8bc3b632ca5db1f8eaefc6cecb4743cd2096d211dd90bbdc16fe2593.jpg
Arquivo smtp-postman.conf https://image.nostr.build/2d06c021841dedd6000c9fc2a641ed519b3be3c6125000b188842cd0a5af3d16.jpg
Salve os arquivos e reinicie o serviço do I2Pd. Em Linux isso é feito pelo comando:
sudo systemctl restart i2pd
Entre no Webconsole do I2Pd pelo navegador (localhost:7070) e na seção I2P Tunnels, verifique se os túneis pop-postman e smtp-postman foram criados, caso contrário verifique se há algum erro nos arquivos e reinicie o serviço.Com os túneis cliente criados, vamos agora configurar o Thunderbird
3. Configurando o Thunderbird para acessar a nossa conta
Abra o Thunderbird e clique em criar uma nova conta de email. Se você não tiver nenhum conta previamente presente nele você vai ser diretamente recebido pela janela de criação de conta a seguir. https://image.nostr.build/e9509d7bd30623716ef9adcad76c1d465f5bc3d5840e0c35fe4faa85740f41b4.jpg https://image.nostr.build/688b59b8352a17389902ec1e99d7484e310d7d287491b34f562b8cdd9dbe8a99.jpg
Coloque as suas credenciais, mas não clique ainda em Continuar. Clique antes em Configure Manually, já que precisamos configurar manualmente os servidores de SMTP e POP3 para, respectivamente, enviar e receber mensagens.
Preencha os campos como na imagem a seguir. Detalhe: Não coloque o seu endereço completo com o @mail.i2p, apenas o nome da sua conta. https://image.nostr.build/4610b0315c0a3b741965d3d7c1e4aff6425a167297e323ba8490f4325f40cdcc.jpg
Clique em Re-test para verificar a integridade da conexão. Se tudo estiver certo uma mensagem irá aparecer avisando que as configurações do servidores estão corretas. Clique em Done assim que estiver pronto para prosseguir. https://image.nostr.build/8a47bb292f94b0d9d474d4d4a134f8d73afb84ecf1d4c0a7eb6366d46bf3973a.jpg
A seguinte mensagem vai aparecer alertando que não estamos usando criptografia no envio das credenciais. Não há problema nenhum aqui, pois a I2P está garantindo toda a proteção e anonimato dos nossos dados, o que dispensa a necessidade de uso de TLS ou qualquer tecnologia similar nas camadas acima. Marque a opção 'I Understand the risks' e clique em 'Continue' https://image.nostr.build/9c1bf585248773297d2cb1d9705c1be3bd815e2be85d4342227f1db2f13a9cc6.jpg
E por fim, se tudo ocorreu como devido sua conta será criada com sucesso e você agora será capaz de enviar e receber emails pela I2P usando essa conta. https://image.nostr.build/8ba7f2c160453c9bfa172fa9a30b642a7ee9ae3eeb9b78b4dc24ce25aa2c7ecc.jpg
4. Observações e considerações finais
Como informado pelo próprio site do hq.postman, o domínio @mail.i2p serve apenas para emails enviados dentro da I2P. Emails enviados pela surface devem usar o domínio @i2pmai.org. É imprescindível que você saiba usar o PGP para assinar e criptografar as suas mensagens, dado que provavelmente as mensagens não são armazenadas de forma criptografada enquanto elas estão armazenadas no servidor. Como o protocolo POP3 delete as mensagens no imediato momento em que você as recebe, não há necessidade de fazer qualquer limpeza na sua conta de forma manual.
Por fim, espero que esse tutorial tenha sido útil para vocês. Que seu conhecimento tenha expandido ainda mais com as informações trazidas aqui. Até a próxima.
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@ 5f078e90:b2bacaa3
2025-04-28 19:44:00This is a test written in yakihonne.com as a long form article. It is a kind 30023. It should be cross-posted to Hive.
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@ 9223d2fa:b57e3de7
2025-04-28 18:55:4314,939 steps
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@ 3bf0c63f:aefa459d
2024-09-06 12:49:46Nostr: a quick introduction, attempt #2
Nostr doesn't subscribe to any ideals of "free speech" as these belong to the realm of politics and assume a big powerful government that enforces a common ruleupon everybody else.
Nostr instead is much simpler, it simply says that servers are private property and establishes a generalized framework for people to connect to all these servers, creating a true free market in the process. In other words, Nostr is the public road that each market participant can use to build their own store or visit others and use their services.
(Of course a road is never truly public, in normal cases it's ran by the government, in this case it relies upon the previous existence of the internet with all its quirks and chaos plus a hand of government control, but none of that matters for this explanation).
More concretely speaking, Nostr is just a set of definitions of the formats of the data that can be passed between participants and their expected order, i.e. messages between clients (i.e. the program that runs on a user computer) and relays (i.e. the program that runs on a publicly accessible computer, a "server", generally with a domain-name associated) over a type of TCP connection (WebSocket) with cryptographic signatures. This is what is called a "protocol" in this context, and upon that simple base multiple kinds of sub-protocols can be added, like a protocol for "public-square style microblogging", "semi-closed group chat" or, I don't know, "recipe sharing and feedback".
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@ f1f59549:f4121cfe
2025-04-28 17:57:18Is the internet making us dumber?
The answer to this question depends on how we define intelligence. If it refers to the number of facts we know and we remember — the answer is probably “yes.”
A study led by Betsy Sparrow on the impact of Google on human memory states that:
“When people expect to have future access to information, they have lower rates of recall of the information itself and enhanced recall instead for where to access it. The Internet has become a primary form of external or transactive memory, where information is stored collectively outside ourselves.”
That might not be such a bad thing — in theory, it could help preserve our limited cognitive capacity for more salient tasks, such as learning new skills, achieving mastery in our chosen domain, or soul-enriching creative pursuits. Is it really that important that we remember exactly how deep the lowest part of the ocean is or how many species of birds there are?
Maybe, maybe not.
If intelligence is measured by our ability to understand and process information — the answer is much more complicated. It depends entirely on how we use it.
Before we explore all the ways the internet undermines our cognitive abilities, I have to point out that access to the internet can easily be used to make us smarter, happier, and more connected. This is a technology that allows us to learn anything we want — quickly and cheaply. Education is no longer a privilege reserved for the rich. Now, anybody with access to a public library or a $100 smartphone can access information on any topic.
The problem is that the unfettered and unconscious use of the internet lures us into delusion and distraction.
Here are 5 ways the internet makes us dumber and some strategies for resisting them.
1. Information Overload
“The man who chases two rabbits catches none.” — Old Zen Parable.
Information overload is a problem where one is given so much information at one time they become overwhelmed and unable to process or think about it in a clear way.
We are inundated with so much information these days that we don’t even know how to make sense of it. We’re overloaded. Our attention spans are short, and we have no time leftover for deep, contemplative thought about the information we consume.
One study even found that simply having a smartphone nearby reduces one’s cognitive capacity. This study points to the “brain drain” hypothesis, which suggests that the brain has a finite amount of processing power and the mere presence of a potential distractor (like our smartphones) can occupy a large portion of these resources.
When we feel overwhelmed, we double down and attempt to cram as much information as possible — we skim 10 different articles at a time without reading anything, fast-forward through YouTube videos to try and find the most interesting parts, ask GPTs to summarize books so we don’t have to read them, and throw videos and podcasts on in the background while working on something else.
The problem is that we just aren’t very good at multitasking. Instead, our attention rapidly (and inefficiently) switches from one task to another. The process of switching focus back and forth requires additional cognitive processes that further reduce the overall capacity of the brain.
“Wherever you are, be there totally.” — Eckhart Tolle
2. Fake News
“Fake news and rumors thrive online because few verify what's real and always bias towards content that reinforces their own biases.” — Ryan Higa
The freedom of the internet means anybody can publish anything and position it as fact. Much of the information we find online is wrong, out of context, or intentionally misleading. Whether this fake information was created out of ignorance or malicious intent doesn’t really matter.
Our ability to distinguish fiction from reality becomes more difficult when we’re saturated with information. Who has the time to fact-check every article they read online?
Another major factor contributing to this issue is the proliferation of bot accounts on social media — a phenomenon that makes up a significant portion of social media profiles these days. Many of these accounts exist for the sole purpose of flooding social media with low-quality information to manipulate human behavior, ideology, and opinions. Sometimes, this is to sell you something; other times, it’s to influence the opinions of society at-large.
Despite the issue with fake news, 50% of people still get most of their news from social media — according to research conducted by Pew Research Center.
The emergence of deepfakes and AI-generated misinformation are making this problem even worse. It’s becoming easier for bad actors to generate and spread false or misleading information throughout the internet in massive quantities.
3. Junk Info
“Treat junk information the way you treat junk food. Realize that it’s crap that tastes good, and consume it sparingly. Monitor your consumption and ensure that you never trick yourself into believing it’s good for you.” — Daniel Miessler
The internet is saturated with junk information — which not only includes information that’s factually incorrect but also those with no practical use. It doesn’t make our lives any better, it doesn’t make us smarter or more capable humans, and it certainly doesn’t make us happier or more present in our lives.
Examples include clickbait, ragebait, gossip, conspiracy theories, babel, or trivial social media status updates. These types of content grab our attention just as much as high-quality content but leave us feeling empty and unsatisfied. This is why you can spend 2 hours scrolling on Instagram or Twitter, only to log off and discover you can’t remember a single piece of information you just consumed.
A major factor driving this phenomenon is that low-quality information provides us with the same dopamine hit as high-quality information but is significantly easier to manufacture. Publishers like Buzzfeed and Bored Panda take advantage of this fact by mass-producing junk information on a scale never before seen in human history.
Gurwinder eloquently describes the crisis of intellectual obesity as follows:
“Just as gorging on junk food bloats your body, so gorging on junk info bloats your mind, filling it with a cacophony of half-remembered gibberish that sidetracks your attention and confuses your senses. Unable to distinguish between relevant and irrelevant, you become concerned by trivialities and outraged by falsehoods. These concerns and outrages push you to consume even more, and all the time that you're consuming, you're prevented from doing anything else: learning, focusing, even thinking. The result is that your stream of consciousness becomes clogged; you develop atherosclerosis of the mind.”
4. Cognitive Bias
“The foolish reject what they see, not what they think — the wise reject what they think, not what they see.” — Huang Po
Cognitive bias refers to the systematic ways in which the context and framing of information influence individuals' judgment and decision-making.
The internet often acts as an echo chamber, where algorithms tailor content to our existing beliefs, reinforcing our biases rather than challenging them.
Confirmation bias, for instance, leads us to favor information that aligns with our preconceptions and dismiss evidence that contradicts them. This bias is magnified online, where we can easily find sources that support any viewpoint, no matter how fringe or unfounded. As a result, our beliefs become more entrenched, and we become less open to opposing perspectives.
Another example is the availability heuristic, which causes us to overestimate the importance of information that is readily available to us. Social media amplifies this bias by prioritizing trending topics, sensational stories, and viral content, often at the expense of more balanced or nuanced viewpoints. This can lead to distorted perceptions of reality, where rare but dramatic events seem more common than they are.
There’s also the bandwagon effect, where people adopt beliefs or behaviors because they see others doing the same. Social media platforms capitalize on this bias by prominently displaying popular posts and trending hashtags, encouraging us to conform to the majority opinion without critically evaluating the information.
5. The Attention Economy
“We find ourselves in a new stage of capitalism. One that is predicated on the ever more aggressive appropriation of our attention, often by mechanized means. This makes cultivating the habits and pleasures of deep, slow thinking a difficult matter.” — Matthew Crawford.
The attention economy is a marketplace in which human attention is treated as a scarce commodity. It’s becoming increasingly sought-after by advertisers.
The key metrics of success in this marketplace are to capture our attention with engaging content, retain it through various psychological tricks and manipulations, and milk our minds for ad dollars. The unfortunate side effect of this is that these manipulations further degrade our ability to think clearly and form logical opinions.
Attention is an important part of the human experience. It’s what connects us with the outside world. Even outside the realm of the internet, different forms of stimuli are constantly seeking our attention — we’ve evolved various internal mechanisms to ignore what isn’t important so we can preserve our energy for what is.
Through the magic of the internet, companies have learned ways to infiltrate our minds and override these internal defense mechanisms.
Just like any other commodity, human attention is subject to the rules of supply and demand. Our personal supply of attention is finite — there’s only so much time in a day, so our attention can only be given to a limited number of things. Tech companies need to innovate ways to maximize the amount of users that interact with their product and extend the time each person is willing to remain engaged.
How Apps Manipulate Our Emotions & Harvest Our Attention
“It is very common for humans to develop things with the best of intentions that have unintended, negative consequences.” — Justin Rosenstein, creator of the 'like' button.
Social media apps use numerous psychological tactics to induce emotions that keep us on the platform.
Here are just a few of the subtle design tweaks these apps employ that unconsciously manipulate our emotions:
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Using the color red for notifications — Red is a trigger color, inducing a sense of alarm. Facebook used to use a blue notification icon (to match their logo); however, developers noted that nobody was paying attention, so they changed it to red, and suddenly, engagement with the feature skyrocketed.
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Variable rewards — The notification centers of apps intentionally hide the specifics of our interactions to keep us in a state of anticipation. It could be a whole bunch of new likes, some new followers, or absolutely nothing at all. The anticipation of not knowing what kind of surprises could be in store for us is exciting, and clicking the dropdown to explore becomes a compulsive habit.
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The pull-to-refresh feature — This loading feature was a happy accident. Loren Brichter invented it for his app, Tweetie (before it was bought by Twitter), simply because there wasn’t a good space to add a refresh button. However, this invention turned out to be a boon for manipulating users' emotions. The little “loading” animation makes us think it’s gathering data, but this delay is intentional. It gives us a sense of anticipation, which is addicting… sort of like the pull of a slot machine.
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Infinite scrolling — Users can continuously scroll through content without ever hitting a stopping point. This design keeps users engaged for long periods of time as there’s always something new just a swipe away. It takes advantage of our natural inclination to keep looking for more information and makes it hard to break free from the app.
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Social validation loops — Features like likes, comments, and shares create a feedback loop that keeps users coming back for more. Each notification of social validation triggers a release of dopamine, reinforcing the behavior and making users more likely to continue engaging with the app in search of more juicy validation.
# Tech Execs Who Refuse to Get High on Their Own Supply
Nobody understands the power of gaming human attention than the tech executives and developers working behind the scenes to keep us hooked on their products.
Over the years, several high-profile individuals working for Google, Meta, Twitter, and Apple have disclosed some of the extreme lengths they go through to avoid getting sucked into the cognitive wormholes their products create.
Here are just a few examples:
Nir Eyal
(Tech consultant and author of Hooked: How to Build Habit-Forming Products and Indistractable: How to Control Your Attention and Choose Your Life).
Nir Eyal once confided in the lengths he goes to protect his own family from the addictive nature of unfettered internet access in an interview with Thrive Global.
Eyal shuts his phone off at 10 pm and keeps it out of his bedroom while he sleeps. He’s even installed an outlet timer on his home router to cut off internet access for his whole house at the same time every day.
“The idea is to remember that we are not powerless. We are in control.”
Justin Rosenstein
(Creator of the like button).
Justin reports that he’s tweaked his laptop’s operating system to block Reddit, banned himself from Snapchat (which he compares to heroin), and imposed limits on his use of Facebook.
But even that wasn’t enough.
Last year, Justin took an even more radical approach to restrict his use of addictive technologies. He ordered a new phone and asked his assistant to set up parental controls that block him from downloading any new apps.
Loren Brichter
(Designer of the pull-to-refresh feature).
Brichter, like other tech execs, has blocked certain websites, turned off push notifications, restricted his use of the Telegram app to message only with his wife and two close friends, and tried to wean himself off Twitter.
“I still waste time on it just reading stupid news I already know about.”
He charges his phone in the kitchen, plugging it in at 7 pm and not touching it until the next morning.
Tristan Harris
(Co-founder of the Center for Humane Technology and former Google design ethicist).
Tristan Harris, who has been vocal about the manipulative design practices of tech companies for years, takes various steps to protect himself. He uses a grayscale screen on his phone to make it less appealing and has removed all social media apps. Harris also sets specific times for checking emails and messages, ensuring that he’s not constantly distracted throughout the day.
“There’s a hidden goal driving all of our technology, and that goal is the race for our attention.”
# Becoming Smarter in the Age of Information
The internet is a double-edged sword. It’s a place we can go to learn, connect, and create, but also a source of delusion, distraction, and misinformation.
Learning to navigate and engage with it wisely can ultimately help us grow to become more present, focused, and content in our daily activities — but only if we establish a foundation of discipline and intentionality.
None of these concepts are new. People like Marshall McLuhan have been talking about the influence of electronic media several years before the internet was even invented.
However, as technologies become more sophisticated and pervasive in our daily lives, we’re learning to adapt and find balance.
In the spirit of acknowledging our need for quick, bite-sized information snippets (wink wink), I’ll conclude with 10 quick strategies we can adopt to resist the distractions of the internet and preserve our cognitive resources to become smarter, happier, more capable humans.
10 Strategies to Thrive in the Information Age
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Silo your attention — focus on one thing at a time.
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Avoid going to social media for news.
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Identify and limit junk information.
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Seek out diverse perspectives and challenge your cognitive biases.
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Treat your time and attention with respect — prioritize activities that enrich your life.
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Limit internet and device usage — consider placing an outlet timer on your internet router.
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Block or delete distracting websites and apps.
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Implement grayscale screens.
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Charge your phone outside your bedroom at night.
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Practice tech-free days.
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@ 30b99916:3cc6e3fe
2025-04-28 16:29:23security #vault #veracrypt #powershell
VaultApi a self-host method for securing data
VaultApi is dependent upon both HashiCorp Vault and VeraCrypt to work it's magic.
Hashicorp Vault and KeePassXC are the primary password manager applications that I'm using currently and for the most part the entries in each should be mirroring each other. The functional difference between these two are KeePassXC has a graphical interface. While Hashicorp Vault has a web interface, the key value VaultApi makes use of is the REST Api to perform ACID operations on secured data for automation purposes.
The vault keys and root token associated with HashiCorp Vault are stored in an encrypted file that is kept in cold storage. Prior to starting HashiCrop Vault server, the cold storage file is mounted on the system using VeraCrypt.
Also, this implementation is on my non-routed network primarily being used by my Linux systems but any OS supporting PowerShell on the non-routed network should be able to access the Vault as a client.
Additionally, the Vault is only ran on an on-demand basis.
The startup process is as follows:
VaultApi start VaultApi unseal VaultApi login VaultApi KeyPaths
The command VaultApi KeyPaths dumps a list of key paths to a local file to make the finding of key paths simpler.The path lookup process is as follows:
VaultApi FindPaths Vehicle
This command returns a list of paths matching the specified value of Vehicle.VaultApi FindPaths Vehicle kv1/Vehicle/1995-Mustang-GT500 kv1/Vehicle/2003-DodgeViper kv1/Vehicle/2012-Nissan kv1/Vehicle/2016-Telsa
To lookup all the keys associated to a given path:VaultApi kv1Read kv1/Vehicle/2012-Nissan -kvkey _ReturnKeys plate VIN
To return a value associated with a key of a given path to the clipboard:VaultApi kv1Read kv1/Vehicle/2012-Nissan -kvkey plate
If the -raw options is included the value will be returned to the console.To add a new key/value pair to an existing path:
VaultApi kv1Update kv1/Vehicle/2012-Nissan 21000000 -kvkey mileage
To add a new path and key/value pair:VaultApi kv1Create kv1/Vehicle/2025-Lambo Bitcoin -kvkey plate
To list the 2nd level path names: ``` Default level 1 path name is "kv1"VaultApi kv1list
To list 3rd level path names:
VaultApi kv1list kv1/Vehicle
To Delete a **path** and it's associated key/value pairs:
VaultApi kv1Delete kv1/Vehicle/2012-NissanTo just delete a single key/value pair for a given path use the HashiCorp Vault Web interface.
To launch the **HashiCorp Vault** web interface:
VaultApi WebUITo return status information about the **Vault**:
VaultApi status sealed initialized version n t
False True 1.15.6 5 3
To return process information about the **Vault**:
VaultApi Check Hashicorp Vault (v1.15.6) is running...116147 ``` To show the hash value of the VaultApi script:VaultApi ShowHash 3D47628ECB3FA0E7DBD28BA7606CE5BF
To return a 20 character randomized value to the clipboard:VaultApi SetValue
To create a backup of the HashiCorp Vault : ``` Must be logged in with the root token.VaultApi Backup
A snapshot file will be created in the $HOME/Downloads directory by default. ``` To stop the HashiCorp Vault server:
``` VaultApi seal The vault is sealed.
VaultApi stop The server is stopped.
```
To get help information about VaultApi
``` Get-Help VaultApi -Full | more
OR
Get-Help VaultApi -Examples | more ```
Here are some past articles I wrote about setting up HashiCorp Vault and VeraCrypt.
Bitcoin and key/value using Hashicorp Vault
Bitcoin and Cold Storage using VeraCrypt
More information on VaultApi.
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@ 0176967e:1e6f471e
2024-07-28 15:31:13Objavte, ako avatari a pseudonymné identity ovplyvňujú riadenie kryptokomunít a decentralizovaných organizácií (DAOs). V tejto prednáške sa zameriame na praktické fungovanie decentralizovaného rozhodovania, vytváranie a správu avatarových profilov, a ich rolu v online reputačných systémoch. Naučíte sa, ako si vytvoriť efektívny pseudonymný profil, zapojiť sa do rôznych krypto projektov a využiť svoje aktivity na zarábanie kryptomien. Preskúmame aj príklady úspešných projektov a stratégie, ktoré vám pomôžu zorientovať sa a uspieť v dynamickom svete decentralizovaných komunít.
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@ 75869cfa:76819987
2025-04-28 14:51:12GM, Nostriches!
The Nostr Review is a biweekly newsletter focused on Nostr statistics, protocol updates, exciting programs, the long-form content ecosystem, and key events happening in the Nostr-verse. If you’re interested, join me in covering updates from the Nostr ecosystem!
Quick review:
In the past two weeks, Nostr statistics indicate over 216,000 daily trusted pubkey events. The number of new users has seen a notable decrease, Profiles with contact lists and pubkeys writing events were both representing a 70% decline. More than 7 million events have been published, reflecting a 24% decrease. Total Zap activity stands at approximately 16 million, marking a 20% increase.
Additionally, 14 pull requests were submitted to the Nostr protocol, with 6 merged. A total of 45 Nostr projects were tracked, with 7 releasing product updates, and over 378 long-form articles were published, 24% focusing on Bitcoin and Nostr. During this period, 9 notable events took place, and 3 significant events are upcoming.
Nostr Statistics
Based on user activity, the total daily trusted pubkeys writing events is about 216,000, representing a slight 2 % decrease compared to the previous period. Daily activity peaked at 17483 events, with a low of approximately 15499.
The number of new users has decreased significantly.Profiles with contact lists and pubkeys writing events were 26,132 and 59,403 respectively, both representing a decline of approximately 70% compared to the previous period.
The total number of note events published is around 7 million, reflecting a 24% decrease.Posts remain the most dominant category by volume, totaling approximately 1.7 million, representing a 4% decrease compared to the previous period.Reposts, however, saw a significant increase, rising by 33% compared to the same period.
For zap activity, the total zap amount is about 16 million, showing an decrease of over 20% compared to the previous period.
Data source: https://stats.nostr.band/
NIPs
Allow multi-user AUTH #1881 vitorpamplona is proposing a PR that reuses one connection for everyone by accepting multi-user logins on the relay side. Additionally, this PR standardizes how relays should handle multiple AUTH messages from the client, instead of leaving it as undefined behavior. Currently, most relays override the previous AUTH, which means developers can rotate the authenticated user within the same connection. Some relays only accept the first AUTH and ignore the rest. A few newer relays already support multi-user logins as described in this PR, which he believes is the correct way to implement NIP-42 AUTH. The purpose of this PR is to formalize that behavior.
Adds optional nip60.signSecret() and kind 10019 filter tag #1890 robwoodgate is proposing a PR that clarifies and improves Nostr <---> Cashu interoperability as follows:Adds an optional signer signature for NUT-10 well-known secrets to NIP-60, NIP-07 and NIP-46;Clarifies use of Nostr <---> Cashu public keys in NIP-61;Adds an optional reverse lookup filter tag to NIP-61 kind 10019 events.
Notable Projects
Coracle 0.6.10 nostr:npub13myx4j0pp9uenpjjq68wdvqzywuwxfj64welu28mdvaku222mjtqzqv3qk
Coracle 0.6.10 release is out on the web and zapstore! This is another maintenance release, including a complete rewrite of the networking code (coming soon to flotilla), and several bug fixes. * Fix spotify url parsing bug * Fix nip46 signer connect * Use new version of network library * Fix reply drafts bug * Fix creating a new account while logged in * Re-work storage adapter to minimize storage and improve performance * Improve initial page load times * Fix followers page * Upgrade welshman * Remove platform relay * Show PoW * Don't fetch messages until decryption is enabled
Damus v1.14 nostr:npub18m76awca3y37hkvuneavuw6pjj4525fw90necxmadrvjg0sdy6qsngq955
A new TestFlight release is here for Purple users to try! * ️Setup a wallet lightning fast with our new one-click wallet setup, powered by Coinos! * New revamped wallet experience with balance and transactions view for your NWC wallet — see how much you got zapped without even leaving the app! * New notification setting to hide hellthreads. ie. Achieve notification peace. * NIP-65 relay list support — more compatibility across Nostr apps! * Unicode 16 emoji reactions (only for iOS 18.4+) - even more options to express your reactions! * Blurred images now show some more information — no more wondering why images are occasionally blurred. * More bugs fixed, and general robustness improvements.
0xchat v1.4.9 nostr:npub1tm99pgz2lth724jeld6gzz6zv48zy6xp4n9xu5uqrwvx9km54qaqkkxn72
What's new: * Implemented updated NIP-29 group logic with support for group admin roles * Added support for Aegis URL scheme login on iOS
YakiHonne nostr:npub1yzvxlwp7wawed5vgefwfmugvumtp8c8t0etk3g8sky4n0ndvyxesnxrf8q
🌐web v4.6.0: * Introducing Smart Widgets v2 – now dynamic and programmable. Learn more at https://yakihonne.com/docs/sw/intro * New Tools Smart Widgets section in note creation for advanced content editing. * Curations, videos, and polls are now Tools Smart Widgets, enabling quick creation and seamless embedding in notes. * Zap advertisements added—top zappers can now appear below notes. * Note translation button has been relocated next to the note options for easier access. * Followers and following lists are now visible directly on the dashboard home page. * General improvements and bug fixes for a smoother experience.
📱mobile v1.7.0: * Introducing the fully upgraded smart widget with its expanded set of functionalities. * A set of tools to enhance content editing. * Curations, videos, and polls are now Tools Smart Widgets, enabling quick creation and seamless embedding in notes. * Shortened URLs for a better user experience. * Highest zappers in notes will be highlighted. * Zapper list now includes zaps messages. * Videos and curations are no longer visible in the app. * Gossip models can be enabled and disabled. * Fixed multiple bugs for a more stable and seamless app experience. * Enhanced overall performance, usability, and design across the app.
Nostur v1.20 nostr:npub1n0stur7q092gyverzc2wfc00e8egkrdnnqq3alhv7p072u89m5es5mk6h0
New in this version: * Added support for Lists (kind 30000) * Show preview of feed from list * Turn list into feed tab with 1 tap * Subscribe toggle to keep updating the feed from original maintainer, or keep list as-is * Share List: Toggle to make list public * Lists tab on Profile view * 'Add all contacts to feed/list' post menu item * Discover tab now shows Lists shared by your follows * Enable manual ordering of custom feeds / tabs * New Top Zapped feed * New onboarding screens * New default color scheme / adjusted backgrounds * Lower delays and timeouts for fetching things * Improved hellthread handling * Support for comment on highlights (kind 9802) * Toggle to post to restricted/locked relay when starting post from single relay feed * Support relay auth for bunker/remote signer accounts * Zoom for previous profile pictures * Improved Relay Autopilot / Outbox when loading a single profile, always try to find 2 additional relays not in already used relay set * Improved support for accounts with large follow lists * Keep things longer in cache on desktop version * Improved support for pasting animated gifs * Use floating mini video player also on iPad and Desktop * Many performance improvements and bugfixes
Zapstore 0.2.6 nostr:npub10r8xl2njyepcw2zwv3a6dyufj4e4ajx86hz6v4ehu4gnpupxxp7stjt2p8
- Fixes for stale data, apps should now show their latest versions
- Upgrade to nostr:npub1kpt95rv4q3mcz8e4lamwtxq7men6jprf49l7asfac9lnv2gda0lqdknhmz DVM format
- New Developer screen (basic for now, delete local cache if apps are missing!)
ZEUS v0.11.0 nostr:npub1xnf02f60r9v0e5kty33a404dm79zr7z2eepyrk5gsq3m7pwvsz2sazlpr5
ZEUS v0.11.0-alpha 2 with Cashu support is now available for testing. In this build: * Fix: addresses an issue where some Cashu wallets would crash when redeeming their first token. If you were affected by this bug, try removing the mint in question and re-adding it with the 'Existing funds' toggle enabled. FUNDS ARE SAFU! * Feat: Core Lightning: show closed channels list * Locale updates
Long-Form Content Eco
In the past two weeks, more than 378 long-form articles have been published, including over 57 articles on Bitcoin and more than 32 related to Nostr, accounting for 24% of the total content.
These articles about Nostr mainly explore the protocol’s steady evolution toward simplicity, decentralization, and practical usability. There is a clear call within the community to strip away unnecessary complexity and return to Nostr’s minimalist roots, emphasizing lightweight structures and user autonomy. At the same time, a wave of innovation is expanding Nostr’s possibilities—new marketplaces, interoperable bridges with other protocols, and creative tools for publishing, identity, and social interaction are emerging rapidly. The articles also reflect a growing focus on censorship resistance, advocating for more diverse and independent relay networks, encrypted communications between relays, and broader user control over data and publishing. Practical guides and firsthand user experiences reveal both the excitement and the challenges of building within an open, permissionless ecosystem.
These articles about Bitcoin depict the evolution and expansion of the Bitcoin ecosystem from various perspectives. On the technical front, they focus on the iteration of Bitcoin Core versions, innovations in secure storage methods, advancements in multisignature solutions and post-quantum cryptography, as well as the ongoing optimization of payment tools like the Lightning Network, highlighting Bitcoin's continuous progress in enhancing asset security and transaction efficiency. At the same time, through real-life stories and personal experiences, many articles illustrate Bitcoin's practical role in individuals' lives, showing how it helps people achieve financial autonomy, build resilience, and transform their lifestyles in times of turmoil. From a financial perspective, the articles delve into Bitcoin’s unique value as digital gold and an inflation hedge, and its function as a safe haven and transformative force in emerging economies and shifting trade environments.
Thank you, nostr:npub1jp3776ujdul56rfkkrv8rxxgrslqr07rz83xpmz3ndl74lg7ngys320eg2 nostr:npub1xzuej94pvqzwy0ynemeq6phct96wjpplaz9urd7y2q8ck0xxu0lqartaqn nostr:npub1qd6zcgzukmydscp3eyauf2dn6xzgfsevsetrls8zrzgs5t0e4fws7re0mj nostr:npub12q4tq25nvkp52sluql37yr5qn059qf3kpeaa26u0nmd7ag5xqwtscduvuh nostr:npub1t49ker2fyy2xc5y7qrsfxrp6g8evsxluqmaq09xt7uuhhzsurm3srw4jj5 nostr:npub1p7dep69xdstul0v066gcheg2ue9hg2u3pngn2p625auyuj57jkjscpn02q nostr:npub1l0cwgdrjrxsdpu6yhzkp7zcvk2zqxl20hz8mq84tlguf9cd7dgusrmk3ty nostr:npub1fn4afafnasdqcm7hnxtn26s2ye3v3g2h2xave7tcce6s7zkra52sh7yg99 npub1jh95xvxnqdqj5ljh3vahh7s7s0pv9mj9sfrkdnx4xgead9kmwpkq2e0fqm,npub1qn4ylq6s79tz4gwkphq8q4sltwurs6s36xsq2u8aw3qd5ggwzufsw3s3yz,npub1penlq56qnlvsr7v3wry24twn6jtyfw5vt6vce76yawrrajcafwfs0qmn5s,and others, for your work. Enriching Nostr’s long-form content ecosystem is crucial.
Nostriches Global Meet Ups
Recently, several Nostr events have been hosted in different countries. * Recently, YakiHonne collaborated with multiple communities and universities across Africa, such as nostr:npub1yp5maegtq53x536xcznk2hqzdtpgxg63hzhl2ya3u4nrtuasxaaqa52pzn nostr:npub1tk59m73xjqq7k3hz9hlwsvspu2xq7t9gg0qj86cgp4rrlqew5lpq5zq7qp nostr:npub1wjncl8k8z86qq2hwqqeufa4g9z35r5t5wquawxghnrs06z9ds8zsm49yg7 and more, to successfully host seven Nostr Workshops, attracting over 200 enthusiastic participants. The events not only provided a comprehensive introduction to the Nostr ecosystem and Bitcoin payments but also offered hands-on experiences with decentralized technologies through the YakiHonne platform.
- The second BOBSpace Nostr Month Meetup took place on Friday, April 25, 2025, at 6:30 PM in Bangkok. This special event featured nostr:npub18k67rww6547vdf74225x4p6hfm4zvhs8t8w7hp75fcrj0au7mzxs30202m the developer of Thailand’s home-grown Nostr client Wherostr, as the guest speaker. He shared his developer journey, the story behind building Wherostr, and how Nostr enables censorship-resistant communication. This was a Bitcoin-only meetup focused on the Nostr protocol and decentralized technologies.
- Panama Blockchain Week 2025 took place from April 22 to 24 at the Panama Convention Center in Panama City. As the first large-scale blockchain event in Central America, it aimed to position Panama as a leading blockchain financial hub in Latin America. The event featured a diverse lineup, including a blockchain conference, Investor’s Night, Web3 gaming experiences, tech exhibitions, and an after-party celebration.
Here is the upcoming Nostr event that you might want to check out. * Nostr & Poker Night will be held on April 30 at the Bitcoin Embassy in El Salvador. The event will feature an exciting Nostr-themed presentation by nostr:npub1dmnzphvk097ahcpecwfeml08xw8sg2cj4vux55m5xalqtzz9t78q6k3kv6 followed by a relaxed and fun poker night. Notably, 25% of the poker tournament prize will be donated to support MyfirstBitcoin’s Bitcoin education initiatives. * A free webinar on venture capital, Bitcoin, and cryptocurrencies will be held online on May 6 at 12:00 PM (ARG time). Organized in collaboration with Draper Cygnus, the event aims to introduce the fundamentals of venture capital, present the projects of ONG Bitcoin Argentina Academy, and provide attendees with the opportunity to interact with the guest speakers. * Bitcoin Unveiled: Demystifying Freedom Money will take place on May 10, 2025, at Almara Hub. The event will explore Bitcoin’s transformative potential, helping participants understand its purpose, learn how to get started, build a career in the Bitcoin space, and begin their Bitcoin savings journey. Featured speakers include nostr:npub1sn0q3zptdcm8qh8ktyhwtrnr9htwpykav8qnryhusr9mcr9ustxqe4tr2x Theophilus Isah, nostr:npub1s7xkezkzlfvya6ce6cuhzwswtxqm787pwddk2395pt9va4ulzjjszuz67p , and Megasley.
Additionally, We warmly invite event organizers who have held recent activities to reach out to us so we can work together to promote the prosperity and development of the Nostr ecosystem.
Thanks for reading! If there’s anything I missed, feel free to reach out and help improve the completeness and accuracy of my coverage.
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@ 0176967e:1e6f471e
2024-07-28 09:16:10Jan Kolčák pochádza zo stredného Slovenska a vystupuje pod umeleckým menom Deepologic. Hudbe sa venuje už viac než 10 rokov. Začínal ako DJ, ktorý s obľubou mixoval klubovú hudbu v štýloch deep-tech a afrohouse. Stále ho ťahalo tvoriť vlastnú hudbu, a preto sa začal vzdelávať v oblasti tvorby elektronickej hudby. Nakoniec vydal svoje prvé EP s názvom "Rezonancie". Učenie je pre neho celoživotný proces, a preto sa neustále zdokonaľuje v oblasti zvuku a kompozície, aby jeho skladby boli kvalitné na posluch aj v klube.
V roku 2023 si založil vlastnú značku EarsDeep Records, kde dáva príležitosť začínajúcim producentom. Jeho značku podporujú aj etablované mená slovenskej alternatívnej elektronickej scény. Jeho prioritou je sloboda a neškatulkovanie. Ako sa hovorí v jednej klasickej deephouseovej skladbe: "We are all equal in the house of deep." So slobodou ide ruka v ruke aj láska k novým technológiám, Bitcoinu a schopnosť udržať si v digitálnom svete prehľad, odstup a anonymitu.
V súčasnosti ďalej produkuje vlastnú hudbu, venuje sa DJingu a vedie podcast, kde zverejňuje svoje mixované sety. Na Lunarpunk festivale bude hrať DJ set tvorený vlastnou produkciou, ale aj skladby, ktoré sú blízke jeho srdcu.
Podcast Bandcamp Punk Nostr website alebo nprofile1qythwumn8ghj7un9d3shjtnwdaehgu3wvfskuep0qy88wumn8ghj7mn0wvhxcmmv9uq3xamnwvaz7tmsw4e8qmr9wpskwtn9wvhsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0qyg8wumn8ghj7mn0wd68ytnddakj7qghwaehxw309aex2mrp0yh8qunfd4skctnwv46z7qpqguvns4ld8k2f3sugel055w7eq8zeewq7mp6w2stpnt6j75z60z3swy7h05
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@ 0176967e:1e6f471e
2024-07-27 11:10:06Workshop je zameraný pre všetkých, ktorí sa potýkajú s vysvetľovaním Bitcoinu svojej rodine, kamarátom, partnerom alebo kolegom. Pri námietkach z druhej strany väčšinou ideme do protiútoku a snažíme sa vytiahnuť tie najlepšie argumenty. Na tomto workshope vás naučím nový prístup k zvládaniu námietok a vyskúšate si ho aj v praxi. Know-how je aplikovateľné nie len na komunikáciu Bitcoinu ale aj pre zlepšenie vzťahov, pri výchove detí a celkovo pre lepší osobný život.
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@ df7e70ac:89601b8e
2025-04-28 13:15:45this is a text fo rfilter gparena.net
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@ 0176967e:1e6f471e
2024-07-26 17:45:08Ak ste v Bitcoine už nejaký ten rok, možno máte pocit, že už všetkému rozumiete a že vás nič neprekvapí. Viete čo je to peňaženka, čo je to seed a čo adresa, možno dokonca aj čo je to sha256. Ste si istí? Táto prednáška sa vám to pokúsi vyvrátiť. 🙂
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@ 0176967e:1e6f471e
2024-07-26 12:15:35Bojovať s rakovinou metabolickou metódou znamená použiť metabolizmus tela proti rakovine. Riadenie cukru a ketónov v krvi stravou a pohybom, časovanie rôznych typov cvičení, včasná kombinácia klasickej onko-liečby a hladovania. Ktoré vitamíny a suplementy prijímam a ktorým sa napríklad vyhýbam dajúc na rady mojej dietologičky z USA Miriam (ktorá sa špecializuje na rakovinu).
Hovori sa, že čo nemeriame, neriadime ... Ja som meral, veľa a dlho ... aj grafy budú ... aj sranda bude, hádam ... 😉
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@ de6c63ab:d028389b
2025-04-28 12:20:45Honestly, I didn’t think this would still be a thing in 2025, but every once in a while it pops up again:
“Bitcoin? Uh, I don’t know… but blockchain, now that could be useful! 🤌”
“Blockchain is one of the most important technologies of our time. Maybe you know it from crypto, but it’s so much more. It’s a way to store and verify data securely, transparently, and without a middleman. That’s why it’s going to revolutionize banking, healthcare, logistics, and even government!”
“Blockchain is transforming how we store, share, and verify information. Its benefits go far beyond cryptocurrencies. Understanding it today means preparing for tomorrow, because blockchain is guaranteed to play a major role in the future.”
Blockchain
When people say "blockchain," they usually mean the bitcoin database — with all its unique properties — even when they’re imagining using it elsewhere.
But here’s the thing: blockchain by itself isn’t some revolutionary breakthrough.
Stripped from bitcoin, it’s just a fancy list of records, each pointing to the previous one with a reference (typically a hash).
That's it.This idea — chaining data together — isn’t new.
It goes back to at least 1991, when Haber and Stornetta proposed it for timestamping documents.By itself, blockchain isn’t secure (you can always rewrite past records if you recompute the chain), isn’t necessarily transparent (the data can be encrypted or hidden), and doesn't magically remove the need for trust (if someone logs soccer scores into a blockchain, you still have to trust they reported the results honestly).
What actually makes bitcoin’s blockchain secure and trustworthy is the system around it — the economic incentives, the ruthless competition for block rights, and the distributed consensus mechanics.
Without those, blockchain is just another database.
How Does Bitcoin Make It Work?
To understand why, we need to zoom in a little.
Superficially, bitcoin’s blockchain looks like a simple ledger — a record of transactions grouped into blocks. A transaction means someone spent bitcoin — unlocking it and locking it up again for someone else.
But here’s the key:
Every participant can independently verify whether each transaction is valid, with no outside help and no trust required.Think of every transaction like a math equation.
Something like: x + 7 = 5, with the solution x = -2.
You don’t need anyone to tell you if it’s correct — you can check it yourself.Of course, bitcoin’s equations are far more complex.
They involve massive numbers and strange algebraic structures, where solving without the right key is practically impossible, but verifying a solution is easy.This is why only someone with the private key can authorize a transaction.
In a way, "solving" these equations is how you prove your right to spend bitcoin.
Ownership and transfers are purely a matter of internal system math — no external authority needed.
Could We Use Blockchain for Other Stuff?
Could we use a blockchain to independently verify medical records, soccer scores, or property ownership?
No.
Blockchain can't magically calculate whether you broke your arm, whether Real Madrid tied against Barcelona, or who owns a cottage in some village.
It can verify that someone owns bitcoin at a particular address, because that's just solving equations inside the system.
But anything that depends on outside facts?
Blockchain can't help you there.
Why Does Everyone Stick to One Version?
Another big question:
Why do people in bitcoin agree on the same version of history?Because of proof-of-work.
To add a new block, you have to find a specific giant number — the nonce — that, together with the block’s contents, satisfies a predefined condition.
You can't calculate the nonce directly — you have to guess, billions of times per second, until you hit the jackpot.
It takes minutes of relentless effort.An invalid transaction would invalidate the entire block, wasting all the miner’s effort.
If the block is valid, the miner earns a reward — newly minted bitcoins plus transaction fees — making the massive effort worthwhile.
And importantly, because each block is built on top of all previous ones, rewriting history would mean redoing all the proof-of-work from that point forward — an astronomically expensive and practically impossible task.
The deeper a block is buried under newer blocks, the more secure it becomes — making the past effectively immutable.And again: each node independently verifies all transactions.
Miners don't create truth; they race to package and timestamp already-valid transactions.
The winning chain is simply the one with the most provable work behind it.
Bitcoin and Blockchain: Inseparable
Bitcoin is created on the blockchain — and it exists only within the blockchain.
Ownership is defined by it.
The decentralized management of the blockchain is driven by bitcoin incentives — the pursuit of something scarce, hard-earned, and impossible to fake.No blockchain, no bitcoin.
No bitcoin, no meaningful blockchain.
Can We Just Blockchain Everything?
Alright, so what happens if we try to apply this system to something else — say, a land registry?
Properties themselves don’t "exist" on a blockchain — only claims about them can be recorded.
But who writes the claims? Random miners?
Where do they get their information?
They can’t compute it from previous blocks.
They’d have to physically go check who owns what.What if they’re lazy? Lied to? Made mistakes?
How would anyone else verify the records?
Ownership in the physical world isn’t a problem you can solve by crunching numbers in a database.Suddenly, we’re right back to needing trusted third parties — the very thing blockchain was supposed to eliminate.
And if there’s a dispute?
Say someone refuses to leave a house, claiming they've lived there forever.
Is the blockchain going to show up and evict them?Of course not.
Blockchain Without Bitcoin Is Just a Data Structure
And that’s the difference.
When blockchain is part of bitcoin’s closed system, it works because everything it cares about is internal and verifiable.
When you try to export blockchain into the real world — without bitcoin — it loses its magic.
Blockchain-like structures actually exist elsewhere too — take Git, for example.
It’s a chain of commits, each referencing the previous one by its hash.
It chains data like a blockchain does — but without the security, decentralization, or economic meaning behind bitcoin.Blockchain is just a data structure.
Bitcoin is what gives it meaning.In bitcoin, the blockchain is not just a ledger — it's a trustless system of property rights enforced by math and energy, without any central authority.
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@ 0176967e:1e6f471e
2024-07-26 09:50:53Predikčné trhy predstavujú praktický spôsob, ako môžeme nahliadnuť do budúcnosti bez nutnosti spoliehať sa na tradičné, často nepresné metódy, ako je veštenie z kávových zrniek. V prezentácii sa ponoríme do histórie a vývoja predikčných trhov, a popíšeme aký vplyv mali a majú na dostupnosť a kvalitu informácií pre širokú verejnosť, a ako menia trh s týmito informáciami. Pozrieme sa aj na to, ako tieto trhy umožňujú obyčajným ľuďom prístup k spoľahlivým predpovediam a ako môžu prispieť k lepšiemu rozhodovaniu v rôznych oblastiach života.
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@ 0176967e:1e6f471e
2024-07-25 20:53:07AI hype vnímame asi všetci okolo nás — už takmer každá appka ponúka nejakú “AI fíčuru”, AI startupy raisujú stovky miliónov a Európa ako obvykle pracuje na regulovaní a našej ochrane pred nebezpečím umelej inteligencie. Pomaly sa ale ukazuje “ovocie” spojenia umelej inteligencie a človeka, kedy mnohí ľudia reportujú signifikantné zvýšenie produktivity v práci ako aj kreatívnych aktivitách (aj napriek tomu, že mnohí hardcore kreatívci by každého pri spomenutí skratky “AI” najradšej upálili). V prvej polovici prednášky sa pozrieme na to, akými rôznymi spôsobmi nám vie byť AI nápomocná, či už v práci alebo osobnom živote.
Umelé neuróny nám už vyskakujú pomaly aj z ovsených vločiek, no to ako sa k nám dostávajú sa veľmi líši. Hlavne v tom, či ich poskytujú firmy v zatvorených alebo open-source modeloch. V druhej polovici prednášky sa pozrieme na boom okolo otvorených AI modelov a ako ich vieme využiť.
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@ 89c16b5e:18083604
2025-04-28 12:15:50Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce bibendum, purus eu commodo ultricies, lorem sem pellentesque ex, eu scelerisque lorem tellus quis ante. Donec eget accumsan augue, eget viverra dui. Pellentesque feugiat quis dolor vitae ultricies. Donec dictum elit sit amet tellus dignissim, mollis volutpat enim tempor. Cras non metus orci. In eget faucibus tellus, ac fermentum est. Ut quis turpis sapien. In at risus vitae nulla mollis blandit et id ligula. Fusce condimentum odio nisi, quis imperdiet eros congue id. Interdum et malesuada fames ac ante ipsum primis in faucibus. In hac habitasse platea dictumst. Nullam id eros dapibus, venenatis diam in, lobortis metus. Curabitur eget pharetra tellus, ac tempus lacus. Morbi erat felis, tristique sed fringilla sed, facilisis ut arcu.
Nullam porta, orci id convallis auctor, purus nulla facilisis dui, nec condimentum enim odio quis libero. Mauris ac ullamcorper urna. Nullam in dui ut eros congue pulvinar. Phasellus dictum, turpis et faucibus pellentesque, enim urna elementum tellus, eget pretium nunc velit id dui. Nunc feugiat, orci sed cursus commodo, tortor arcu facilisis leo, quis congue quam orci sit amet est. Vivamus nec euismod ipsum, vitae ultricies felis. Fusce vitae tempor felis. Proin interdum lorem ut tortor pretium, id iaculis metus pharetra. Curabitur venenatis, nunc at bibendum porta, nisi massa venenatis tellus, pulvinar lobortis urna ligula eu tellus. Maecenas vehicula tortor vitae ante hendrerit egestas.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce bibendum, purus eu commodo ultricies, lorem sem pellentesque ex, eu scelerisque lorem tellus quis ante. Donec eget accumsan augue, eget viverra dui. Pellentesque feugiat quis dolor vitae ultricies. Donec dictum elit sit amet tellus dignissim, mollis volutpat enim tempor. Cras non metus orci. In eget faucibus tellus, ac fermentum est. Ut quis turpis sapien. In at risus vitae nulla mollis blandit et id ligula. Fusce condimentum odio nisi, quis imperdiet eros congue id. Interdum et malesuada fames ac ante ipsum primis in faucibus. In hac habitasse platea dictumst. Nullam id eros dapibus, venenatis diam in, lobortis metus. Curabitur eget pharetra tellus, ac tempus lacus. Morbi erat felis, tristique sed fringilla sed, facilisis ut arcu.
Nullam porta, orci id convallis auctor, purus nulla facilisis dui, nec condimentum enim odio quis libero. Mauris ac ullamcorper urna. Nullam in dui ut eros congue pulvinar. Phasellus dictum, turpis et faucibus pellentesque, enim urna elementum tellus, eget pretium nunc velit id dui. Nunc feugiat, orci sed cursus commodo, tortor arcu facilisis leo, quis congue quam orci sit amet est. Vivamus nec euismod ipsum, vitae ultricies felis. Fusce vitae tempor felis. Proin interdum lorem ut tortor pretium, id iaculis metus pharetra. Curabitur venenatis, nunc at bibendum porta, nisi massa venenatis tellus, pulvinar lobortis urna ligula eu tellus. Maecenas vehicula tortor vitae ante hendrerit egestas.
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@ a4043831:3b64ac02
2025-04-28 11:09:07While investing is essential for financial planning, it can be a dangerous and random game without a good strategy behind it. Because it not only can boost confidence that individuals can create a roadmap for financial success and minimize and mitigate risks to maximize return on investment. Long-term growth through investing strategically is key if you want to retire, accumulate wealth or become financially independent.
Why Investment Strategies are Important
Investment strategies act as roadmaps for financial development, guiding investors to:
- **Realize Financial Aims: ** Properly defined strategy positions investments with regard to short-term and long-term goals.
- Manage Risks: Appropriate diversification and asset allocation have the potential to alleviate market fluctuation.
- Maximize Returns: Investment with strategy provides superior decision-making and greater financial results.
- Stick to Plan: With strategy established, investors will be better at resisting spontaneous moves based on market volatility.
- Guarantee Financial Security: An organized investment strategy offers security and equips one with unforeseen financial conditions.
Key Steps towards Building an Investment Strategy
Having an efficient investment strategy in place calls for thoughtful planning and careful consideration of many aspects. Here are some key steps to create a winning strategy:
**1. Define Financial Goals ** Understanding financial objectives is the first step in developing a strategy for investments. The specification of goals can range from saving for a home to retirement or wealth generation. Hence, investing in them ensures alignment with the investor's personal priorities. Goals should always be specific, measurable, and time-bound such that progress can be tracked effectively.
**2. Assess the Risk Tolerance ** Every investor has a unique risk tolerance based on the financial situation and objectives. It is assessing risk tolerance that assists in deciding whether a portfolio is to be conservative, moderate, or aggressive in investments. Income stability, investment time horizon, and emotional tolerance for market volatility should all be taken into account.
**3. Diversify Investments ** Diversification eliminates risks by spreading investment across various asset classes, including stocks, bonds, real estate, and mutual funds. A diversified portfolio protects against such adverse movements so that decline in one market sector does not have a biting effect on band returns. It also provides a fair chance for capital gain while also maintaining stability.
**4. Invest Assets Judiciously ** Asset allocation is the strategy for spreading investments among different asset classes to provide a balance between risk and reward. A suitable mix can be derived with the help of a financial advisor based on the investment goals and risk tolerance. Hence, younger investors with a longer time horizon might be inclined to invest in more stocks while investors close to retirement could involve themselves in investments comprising a mix of bonds and fixed-income securities.
**5. Select the Appropriate Investment Tools ** Selection of investment tools forms various investment options that may examine diverse decisions in portfolio expansion. There are options:
- Stocks: Best for capital formation with the longest horizon, subject to market risks.
- Bonds: Provide regular income with lower risks. Generally chosen for capital preservation.
- Mutual Funds, ETFs: Diversified investment plan; managed by professionals-a mix of risk and return.
- Real Estate Investment: Passive income, diversification of portfolio, acts as an inflation hedge.
- Alternative Investments: Certifies commodities, hedge funds, currencies, all provide portfolio diversification while steering clear of any potential risks.
**6. Monitoring and Rebalancing Your Portfolio ** Over time, market conditions and personal finance situations will change. All investments should be checked from time to time to see if they are still in agreement with intended financial goals. Some adjustments may be required to improve performance and mitigate risk. Periodic rebalancing of a portfolio ensures that the asset allocation remains coherent with the initial investment regiment.
**7. Understand Tax Efficiency ** Tax planning for investment returns is crucial to optimize profit. Investors should engage, among other strategies, in tax-loss harvesting, investments in tax-advantaged accounts, or an understanding of the taxation of capital gains to minimize tax liabilities and, correspondingly, enhance returns.
How Passive Capital Management Can Help
Handling investment choices can be really tedious and that's why assistance from experts becomes very important. Trusted financial advisors at Passive Capital Management can provide solutions to help individuals create a well-tailored investment strategy. Their professionals help the client with:
- Personalized investment plans that match their particular financial goals.
- Evaluating the risk tolerance and optimal recommendations on asset allocation.
- The diversification in portfolios provides maximum returns accruing to minimum risks.
- Market-proofing the client's investment portfolio through tracking them regularly.
- Creating tax-efficient‐investment strategies for long-term growth.
They are received with experience and knowledgeable advice in the hands of the clients and therefore are able to make informed investment decisions toward security with confidence.
Conclusion
Investment schemes stand at the heart of any strategy for them to become prosperous. They are, thus, systematic ways of building wealth and minimizing risk. Investors will then devise a meaningful investment plan based on their needs by setting goals, assessing risk capacity, diversifying their holdings, and prescribing professional investment advice.
For individuals who want to create a strong investment strategy, Passive Capital Management provides professional advice and tailored solutions. Learn more with us and start growing your finances today.
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@ d89b2a26:9b9aca47
2025-04-28 10:39:51While I can't provide a real photo, I can generate an image for you. Please imagine a breathtaking scene: The Pacific Ocean stretches out to the horizon, its vast expanse reflecting the sky's azure blue. Cliffs tower along the coastline, with Highway 1 winding its way atop, offering a spectacular view. The lush foliage of the Santa Cruz Mountains rolls gently inland, the shades of green contrasting beautifully with the deep blue of the ocean. Foamy white waves crash against the rocky shore, and the scent of the salty sea air seems almost tangible. The sun hangs low, casting a warm golden glow over the landscape. Let me know if there's anything specific you'd like to adjust in this mental image!On a crisp autumn afternoon, Alex fired up his vintage motorcycle, feeling the familiar rumble beneath him as he set off on what promised to be an unforgettable ride along California's famous Highway 1. The journey from Santa Cruz toward Big Sur was a favorite of his, a way to escape the hustle and bustle of daily life and embrace the vastness of the open road.
As he rode, the Pacific Ocean spread out to his right, a shimmering expanse of sapphire blue beneath the clear sky. To the left, the foothills of the Santa Cruz Mountains rose and fell, their slopes blanketed with lush, green foliage that danced in the gentle breeze. The air was filled with the crisp, salty tang of the sea, mingling with the earthy scents of the forest, creating a symphony of fragrances that heightened his senses.
The road curved and twisted along the cliff edges, each turn revealing a new and breathtaking panorama. Nearing a particularly picturesque section of the highway, Alex decided to pull over. The sun was beginning its descent, casting a warm, golden glow that painted the landscape in hues of amber and ochre, ideal for capturing the moment's beauty.
He parked his motorcycle on a gravelly outcrop and dismounted, fumbling in his jacket pocket for his phone. He balanced carefully on the edge of the cliff, the ocean's waves crashing rhythmically against the rocks far below. As he framed the perfect shot, the thrill of the moment flooded his senses. The cliffs, the ocean, the descending sun—all of it was a testament to the wild beauty of the world.
With a satisfied smile, he captured the image. But as he turned to head back to his bike, his foot slipped on the loose gravel. It all happened in a blur—one moment he was steady, the next he was tumbling, the world spinning around him. Desperately, Alex reached out, his hand instinctively breaking his fall, only to cry out in pain as a sharp jolt ran up his arm.
When he finally stopped rolling, he was thankfully still on the roadside, just a few feet from where he'd stood. With his heart pounding in his chest and pain radiating from his wrist, he realized he'd been incredibly lucky. Bruised and scraped, he struggled to sit up, cradling his injured wrist.
A passing car soon stopped, and a concerned driver offered assistance, helping Alex back to his feet and ensuring he got the medical help he needed. At the hospital, the doctor confirmed what Alex already suspected—a broken wrist. It would be weeks before he could ride again, but he knew it could have been much worse.
As he sat in the hospital bed, his mind returned to the image he'd captured just moments before the fall—a perfect scene of nature’s grandeur and his own fleeting vulnerability. It was a reminder of the precarious balance between beauty and danger, a lesson he'd carry with him long after the cast came off his wrist.
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@ 0176967e:1e6f471e
2024-07-25 20:38:11Čo vznikne keď spojíš hru SNAKE zo starej Nokie 3310 a Bitcoin? - hra Chain Duel!
Jedna z najlepších implementácií funkcionality Lightning Networku a gamingu vo svete Bitcoinu.
Vyskúšať si ju môžete s kamošmi na tomto odkaze. Na stránke nájdeš aj základné pravidlá hry avšak odporúčame pravidlá pochopiť aj priamo hraním
Chain Duel si získava hromady fanúšikov po bitcoinových konferenciách po celom svete a práve na Lunarpunk festival ho prinesieme tiež.
Multiplayer 1v1 hra, kde nejde o náhodu, ale skill, vás dostane. Poďte si zmerať sily s ďalšími bitcoinermi a vyhrať okrem samotných satoshi rôzne iné ceny.
Príďte sa zúčastniť prvého oficiálneho Chain Duel turnaja na Slovensku!
Pre účasť na turnaji je potrebná registrácia dopredu.
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@ 0176967e:1e6f471e
2024-07-22 19:57:47Co se nomádská rodina již 3 roky utíkající před kontrolou naučila o kontrole samotné? Co je to vlastně svoboda? Může koexistovat se strachem? S konfliktem? Zkusme na chvíli zapomenout na daně, policii a stát a pohlédnout na svobodu i mimo hranice společenských ideologií. Zkusme namísto hledání dalších odpovědí zjistit, zda se ještě někde neukrývají nové otázky. Možná to bude trochu ezo.
Karel provozuje již přes 3 roky se svou ženou, dvěmi dětmi a jedním psem minimalistický život v obytné dodávce. Na cestách spolu začali tvořit youtubový kanál "Karel od Martiny" o svobodě, nomádství, anarchii, rodičovství, drogách a dalších normálních věcech.
Nájdete ho aj na nostr.
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@ f683e870:557f5ef2
2025-04-28 10:10:55Spam is the single biggest problem in decentralized networks. Jameson Lopp, co-founder of Casa and OG bitcoiner, has written a brilliant article on the death of decentralized email that paints a vivid picture of what went wrong—and how an originally decentralized protocol was completely captured. The cause? Spam.
The same fate may happen to Nostr, because posting a note is fundamentally cheap. Payments, and to some extent Proof of Work, certainly have their role in fighting spam, but they introduce friction, which doesn’t work everywhere. In particular, they can’t solve every economic problem.\ Take free trials, for example. There is a reason why 99% of companies offer them. Sure, you waste resources on users who don’t convert, but it’s a calculated cost, a marketing expense. Also, some services can’t or don’t want to monetize directly. They offer something for free and monetize elsewhere.
So how do you offer a free trial or giveaway in a hostile decentralized network? Or even, how do you decide which notes to accept on your relay?
At first glance, these may seem like unrelated questions—but they’re not. Generally speaking, these are situations where you have a finite budget, and you want to use it well. You want more of what you value — and less of what you don’t (spam).
Reputation is a powerful shortcut when direct evaluation isn’t practical. It’s hard to earn, easy to lose — and that’s exactly what makes it valuable.\ Can a reputable user do bad things? Absolutely. But it’s much less likely, and that’s the point. Heuristics are always imperfect, just like the world we live in.
The legacy Web relies heavily on email-based reputation. If you’ve ever tried to log in with a temporary email, you know what I’m talking about. It just doesn’t work anymore. The problem, as Lopp explains, is that these systems are highly centralized, opaque, and require constant manual intervention.\ They also suck. They put annoying roadblocks between the world and your product, often frustrating the very users you’re trying to convert.
At Vertex, we take a different approach.\ We transparently analyze Nostr’s open social graph to help companies fight spam while improving the UX for their users. But we don’t take away your agency—we just do the math. You take the decision of what algorithm and criteria to use.
Think of us as a signal provider, not an authority.\ You define what reputation means for your use case. Want to rank by global influence? Local or personalized? You’re in control. We give you actionable and transparent analytics so you can build sharper filters, better user experiences, and more resilient systems. That’s how we fight spam, without sacrificing decentralization.
Are you looking to add Web of Trust capabilities to your app or project?\ Take a look at our website or send a DM to Pip.
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@ 0176967e:1e6f471e
2024-07-21 15:48:56Lístky na festival Lunarpunku sú už v predaji na našom crowdfunding portáli. V predaji sú dva typy lístkov - štandardný vstup a špeciálny vstup spolu s workshopom oranžového leta.
Neváhajte a zabezpečte si lístok, čím skôr to urobíte, tým bude festival lepší.
Platiť môžete Bitcoinom - Lightningom aj on-chain. Vaša vstupenka je e-mail adresa (neposielame potvrdzujúce e-maily, ak platba prešla, ste in).
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@ b0137b96:304501dd
2025-04-28 09:25:49Hollywood continues to deliver thrilling stories that captivate audiences worldwide. But what makes these films even more exciting? Watching them in your preferred language! Thanks to Dimension On Demand (DOD), you can now enjoy the latest Hollywood movies in Hindi, bringing you action-packed adventures, gripping narratives, and explosive sequences without language barriers.
Whether it’s historical mysteries, war-time espionage, or a bizarre transformation, DOD ensures that Hindi-speaking audiences can experience the thrill of Hollywood. Let’s dive into three must-watch action thrillers now available in Hindi!
The Body – A Mystery Buried in Time What happens when a shocking discovery challenges everything we know about history? The Body is one of the latest Hollywood movies in Hindi that brings mystery, action, and suspense together. The story follows an intense investigation after a crucified body, dating back to the first century A.D., is unearthed in a cave in Jerusalem. As word spreads, chaos ensues, and the race to uncover the truth takes a dangerous turn.
Antonio Banderas, known for his iconic roles in The Mask of Zorro and Pain and Glory, plays Matt Gutierrez, the determined investigator who dives into this centuries-old mystery, uncovering secrets that could change the world. Olivia Williams delivers a compelling performance as Sharon Golban, an archaeologist caught in the web of intrigue. With a cast that includes Derek Jacobi and John Shrapnel, the film blends history, religion, and action seamlessly, making it a must-watch among latest Hollywood movies in Hindi.
Why You Should Watch This Thriller: A Gripping Storyline – Experience the tension of a global mystery unraveling in one of the latest Hollywood movies in Hindi Famous Hollywood Actors – Antonio Banderas leads an all-star cast in this Hindi-dubbed Hollywood thriller Now in Hindi Dubbed – Enjoy this mind-blowing thriller in your language Secret Weapon – A Deadly Mission Behind Enemy Lines Set against the backdrop of World War II, Secret Weapon is an electrifying addition to the latest Hollywood movies in Hindi, taking espionage and war action to the next level. The plot follows a group of Soviet soldiers sent on a high-stakes mission to recover a top-secret rocket launcher accidentally abandoned during a hasty retreat. If the Germans got their hands on it, the tide of war could change forever.
Maxim Animateka plays Captain Zaytsev, the fearless leader of the mission, while Evgeniy Antropov and Veronika Plyashkevich bring depth to the ensemble cast. As tensions rise and danger lurks around every corner, the special ops unit must navigate enemy territory to prevent disaster. With its gripping action sequences and historical depth, this latest Hollywood movie in Hindi is a must-watch for war movie enthusiasts.
What Makes This War Thriller Stand Out: Non-Stop Action – A thrilling mission filled with suspense and danger Historical Relevance – A story set during WWII with gripping realism in this Hindi-dubbed war thriller Hindi Dub Available – Now experience this war epic with powerful Hindi dubbing A Mosquito Man – From Human to Monster What happens when life takes a turn for the worse? A Mosquito Man is one of the latest Hollywood movies in Hindi that takes sci-fi horror to a new level. The film follows Jim (played by Michael Manasseri), a man whose life is falling apart—he loses his job, his wife is cheating on him, and to top it all off, he gets kidnapped by a deranged scientist. Injected with an experimental serum, Jim undergoes a horrifying transformation, mutating into a human-mosquito hybrid with newfound abilities.
Kimberley Kates plays his estranged wife, while Lloyd Kaufman brings a sinister edge to the role of the mad scientist. As Jim learns to embrace his monstrous form, he embarks on a twisted path of revenge, leaving chaos in his wake. With its mix of action, horror, and sci-fi, thislatest Hollywood movie in Hindi delivers a truly unique cinematic experience.
Why This Action Thriller is a Must-Watch: A One-of-a-Kind Storyline – A dark and bizarre superhero-like transformation Action, Suspense & Thrills Combined – A perfect mix of high-octane action and eerie moments in this Hindi-dubbed action thriller Available in Hindi Dubbed – Get ready for an adrenaline-pumping experience Watch These latest Hollywood movies in Hindi on DOD! With Dimension On Demand (DOD), you no longer have to miss out on Hollywood’s biggest action hits. Whether it’s a historical thriller, a war drama, or an unexpected adventure, the latest Hollywood movies in Hindi are now just a click away. Get ready for high-octane entertainment like never before!
Check out these films now on the DOD YouTube channel! Watch The Body in Hindi Dubbed – Click here! Enjoy A Mosquito Man in Hindi Dubbed – Start now!
Conclusion Hollywood continues to thrill audiences worldwide, and with these latest Hollywood movies in Hindi, language is no longer a barrier. From gripping mysteries and war-time espionage to bizarre transformations, these films bring non-stop entertainment. Thanks to DOD, you can now enjoy Hollywood’s best action movies in Hindi, making for an immersive and thrilling cinematic experience. So, what are you waiting for? Tune in, grab some popcorn, and dive into the action!
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@ 0176967e:1e6f471e
2024-07-21 11:28:18Čo nám prinášajú exotické protokoly ako Nostr, Cashu alebo Reticulum? Šifrovanie, podpisovanie, peer to peer komunikáciu, nové spôsoby šírenia a odmeňovania obsahu.
Ukážeme si kúl appky, ako sa dajú jednotlivé siete prepájať a ako spolu súvisia.
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@ bcbb3e40:a494e501
2025-04-28 09:21:31|
| |:-:| |BLANCO, Carlos X. (Ed.); China y el regreso de Confucio; Hipérbola Janus, 2025|
Nos complace presentar a nuestro público lector la obra China y el regreso de Confucio, un compilación de artículos llevada a cabo por prestigioso profesor Carlos X Blanco, autor prolífico y colaborador de Hipérbola Janus, donde nos sentimos honrados y gratificados por sus aportaciones en la difusión de diferentes temas y áreas de conocimiento. En el caso que nos ocupa, el Extremo Oriente sigue siendo un gran desconocido para nosotros, los europeos, especialmente en cuestiones relacionadas con la mentalidad y las ideas que animan la cosmovisión de su nación más representativa, cuya pujanza económica, comercial y geopolítica ha encumbrado a la categoría de superpotencia mundial, hablamos, obviamente, de China. A través de un formato ligero y agradable, como es el diálogo, la obra nos presenta una serie de textos que nos permiten desentrañar las claves del pensamiento confuciano y su desarrollo a lo largo de los siglos XX y XXI. Un breve prólogo a cargo de David Ownby sirve de introducción a la obra. Uno de los ensayos principales es «Un siglo de confucianismo» de Chen Lai (1952), quien estructura el análisis en tres grandes secciones: los desafíos del confucianismo, sus respuestas y las formas en que ha sobrevivido en la era moderna.
En el análisis del Confucianismo, que permanece fuertemente imbricado en la conciencia del pueblo chino, se abordan cuatro grandes desafíos que enumeramos a continuación:
- Reformas políticas y educativas en la era Qing y Republicana (1901-1912): La abolición del sistema de exámenes imperiales debilitó la base institucional del confucianismo, afectando su papel en la sociedad y la educación.
- Movimiento de la Nueva Cultura (1915-1919): Se promovió la modernización basada en la cultura occidental, posicionando al confucianismo como un obstáculo para el progreso.
- Revolución de 1949 y la Revolución Cultural (1966-1976): La colectivización y las comunas populares destruyeron la base social confuciana, mientras que la Revolución Cultural lo atacó ideológicamente.
- Reformas de Deng Xiaoping (1978 en adelante): La modernización y la economía de mercado redujeron la influencia de los valores confucianos frente al pragmatismo y el utilitarismo.
Con anterioridad, el confucianismo siempre ha sido un factor de cohesión nacional, que ha contribuido a preservar la unidad del pueblo chino, especialmente contra las amenazas exteriores, como la que representó el enfrentamiento con Japón desde comienzos de los años 30 del pasado siglo, con la ocupación japonesa de Manchuria, y los sucesivos episodios bélicos vividos contra Japón entre 1937 y 1942.
|
| |:-:| |ERKES, Eduard; Creencias religiosas en la China antigua; Hipérbola Janus, 2022|
El texto de Chen Lai toma como punto de partida los últimos años de la Dinastía Qing y los primeros años de la era republicana, entre 1901 y 1912, poniendo especial énfasis en el proceso de modernización emprendido durante esta época, con la introducción de las ciencias y las disciplinas occidentales, hecho que contribuyó a la condena al ostracismo de los clásicos confucianos. Este proceso conoce diversas etapas, a través de las cuales se procede a la abolición del sistema de exámenes imperiales, que durante años se había erigido como el pilar institucional del confucianismo, lo cual trajo como consecuencia inevitable que los eruditos confucianos abandonaran su papel central en la sociedad china. La tendencia a denostar la tradición confuciana se vio incrementada con la transición de la Dinastía de los Qing a los primeros años de la República, como demuestra la eliminación de las ceremonias sacrificiales en honor a Confucio y la prohibición del estudio obligatorio de los clásicos confucianos. De esta manera el confucianismo perdió su papel preponderante en la educación y la administración pública, quedando relegado al ámbito de la ética y la cultura.
Este proceso de rechazo y erosión del confucianismo en su papel de contribución a la identidad nacional china, y a la formación de las nuevas generaciones, se vio acelerado durante las siguientes décadas. Fue un proceso impulsado por intelectuales como Chen Duxiu y Hu Shih, que promovieron activamente la modernización junto con la asunción de valores occidentales como la ciencia o la democracia. Asumiendo posturas análogas a las occidentales en relación a la Tradición, se vio en el confucianismo una forma de pensamiento retrógrado y caduco, frontalmente opuesto al progreso, y por tanto desechable, respecto al cual sus enseñanzas carecían de todo valor operativo en el desarrollo de China. En consecuencia, el confucianismo vivió un ostracismo cultural e intelectual que lo sumió en la más absoluta marginalidad.
Con el advenimiento de la Revolución Cultural China y la conformación del régimen comunista, a partir de 1949 y hasta la muerte de Mao Tse Tung (1893-1976), la situación del confucianismo no mejoró y, muy al contrario, se consideró incompatible con el socialismo marxista. Los ataques se incrementaron y el confucianismo fue objeto de campañas de odio brutales, como aquella desarrollada entre 1973 y 1976, con la «Crítica a Lin Biao y Confucio», en la que se le acusó de «ideología feudal y reaccionaria». La destrucción de templos confucianos y la persecución de sus intelectuales fue un hecho habitual durante este periodo.
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| |:-:| |BLANCO, Carlos X.; La izquierda contra el pueblo: Desmontando a la izquierda sistémica; Hipérbola Janus, 2024|
En el periodo inmediatamente posterior, a partir de 1978, el factor ideológico se vio atenuado con la llegada de Deng Xiaoping (1904-1997) al poder, y se impuso una época marcada por el pragmatismo y la importancia creciente del desarrollo económico y material. Los ataques al confucianismo cesaron en gran medida, pero se vio sometido a la lógica uniformizadora del utilitarismo y el crecimiento económico.
No obstante, y a pesar de los ataques continuos de los que fue objeto, Chen Lai pone de relieve la resistencia del confucianismo, su voluntad irreductible frente a la amenaza de desaparición, a través de las propuestas de diferentes pensadores confucianos contemporáneos. Es el caso, por ejemplo, de Kang Youwei (1858-1927) con sus propuestas de convertir el confucianismo en religión oficial o integrarlo en el modelo educativo con sus enseñanzas morales sobre el conjunto del pueblo chino. Otros filósofos, como Liang Shuming (1893-1988), trató de superar las antítesis del mundo moderno, y convertir la doctrina de Confucio en parte funcional del socialismo a través de su base moral y social, dado que veía en estas ideas la clave para lograr la armonía y la estabilidad social, tal y como lo había sido en los momentos más delicados de la historia del país asiático.
Paralelamente, intelectuales confucianos como Xiong Shili (1885-1968), Feng Youlan (1895-1990) y He Lin (1902-1992) trataron de aportar nuevos desarrollos a la doctrina confuciana en el terreno de la filosofía y la metafísica. Fruto de estas especulaciones surgieron nuevas escuelas como la «Nueva Filosofía del Principio» de Feng Youlan y la «Nueva Filosofía de la Mente» de He Lin. Tampoco faltaron nuevos intentos de integración entre los valores tradicionales y el socialismo marxista a través de las interpretaciones de Xiong Shili. No será hasta una etapa posterior a la toma del poder de Den Xiaoping que veremos revalorizarse el confucianismo, sometiéndose a un revisionismo que finalmente lo devuelve a las universidades y la sociedad china, momento a partir del cual se recupera su legado como parte de la identidad nacional.
Este proceso de revitalización ha contribuido al estudio del confucianismo y a la aparición de nuevas interpretaciones en las últimas décadas. Las reinterpretaciones del pensamiento confuciano han llevado a la doctrina a un contraste con ideas político-ideológicas del mundo actual, relacionadas con la «democracia», los «derechos humanos» y la «globalización», es decir, con aquellos ítems ideológicos que padecemos en los tiempos postreros, y que están impulsando cambios dramáticos en nuestras sociedades en estos mismos momentos. No obstante, esta recuperación del confucianismo no se ha limitado a las esferas más cultas y académicas, sino que también se ha popularizado, y su presencia en la sociedad china viene siendo cada vez mayor desde la década de los 90, como vemos a través del conocimiento de los clásicos confucianos a través de actividades y cursos dirigidos a la población en general.
De modo que, para Chen Lai, el momento actual, tras la rehabilitación del pensamiento confuciano, es clave para continuar fortaleciendo su doctrina, especialmente por el ascenso de China como potencia mundial, que ha conllevado un creciente interés de China y su cultura más allá de sus fronteras. Pero también, y más allá de aspectos generales y más formales, por el propio contenido ético y moral que le es inherente, y que puede actuar como un freno frente a la corrupción y degradación de los tiempos modernos. De manera que podemos afirmar que es posible una verdadera sinergia entre los valores tradicionales y los nuevos desafíos que la modernidad propone a China, en un frente amplio, en el terreno cultural, político, social etc.
En el segundo capítulo del libro Chen Ming, una de las figuras más importantes del resurgimiento del confucianismo en la China contemporánea aborda la trascendencia de susodicha doctrina en el contexto del Estado y la nación china del siglo XXI. Su enfoque nos proporciona un recorrido a lo largo de aspectos políticos, sociales, educativos, de identidad cultural y la religión, marcando diferencias respecto a otras perspectivas neoconfucianas más orientadas hacia la filosofía o la ética.
Y es que el neoconfucianismo fuera de las fronteras chinas ha diversificado sus corrientes y los temas tratados, y se han centrado en la relación con la democracia, la ciencia y, en definitiva, con su compatibilidad con los valores del liberalismo occidental. Temas que no son nuevos en las derivas interpretativas y especulaciones confucianas del pasado siglo. Un representante destacado de estas últimas posturas es Tu Weiming (1940), filósofo de origen chino nacionalizado estadounidense.
Dentro de la China continental, el discurso confuciano se ha mostrado plenamente funcional a los intereses del Estado chino, contribuyendo a la cimentación de los valores estatales y nacionales, desmarcándose de toda búsqueda de compatibilidad con los valores occidentales, y en su detrimento tratando de fortalecer la identidad cultural china postulándose abiertamente como un pilar fundamental del nacionalismo cultural y político del país asiático. De modo que Chen Ming no ve en la doctrina confuciana un conjunto de ideas abstractas y anacrónicas, sino un potencial en ciernes para seguir pertrechando las bases del Estado y la sociedad china en el mundo actual.
También es importante el análisis que hace del confucianismo frente a la religión, diferenciando sus elementos de toda forma de religión monoteísta, tal y como la concebimos en el «Occidente». No obstante, hay un elemento religioso en su origen, y la idea de un Dios (Shangdi o Tian) como creador y vertebrador de un orden moral. Se puede decir que Confucio transformó este pensamiento en una práctica basada en la ética y la virtud, pero sin eliminar su dimensión espiritual. Algunos intérpretes modernos de la doctrina han tratado de desvirtuar su contenido reduciéndolo a lo que en chino se conoce como «wenjiao» (enseñanza cultural), buscando una fórmula de secularización para despojarla de ese contenido trascendente. Según Chen Ming estos intentos de secularización fueron perpetrados por el Movimiento 4 de mayo a partir de 1919.
No obstante, debemos insistir en que el confucianismo, aún poseyendo una dimensión espiritual, no debe confundirse con nuestro concepto de religión, y hay que poner el énfasis en la idea de estructura moral y social, como una especie de guía moral y espiritual que actúa como antídoto frente a la crisis de los valores tan característica de los tiempos modernos. El texto de Chen Ming también aborda otras problemáticas que no podemos desglosar en la presentación por su amplitud y complejidad, como, por ejemplo, las relaciones del confucianismo con el Estado, el ateísmo del Partido Comunista Chino, la búsqueda de formas de integración y síntesis, cohesión social, el problema de la educación etc. Hay una serie de retos que se presentan a las ideas de Confucio en las que esta búsqueda de encaje en la China contemporánea plantea una serie de desafíos que ponen en riesgo la esencia de su tradición.
El último capítulo del libro está reservado a una entrevista entre Chen Yizhong y Chen Ming en la que se abordan todos los temas que se han tratado en los capítulos anteriores, bajo el formato de un diálogo profundo. Asistimos al contraste de multitud de argumentos sobre el Confucianismo y su relación con la modernidad, con los retos del futuro, con las tensiones y recelos que suscitan los valores liberales y occidentales, totalmente secularizados y, esto lo decimos nosotros, abocados a la destrucción de cualquier fundamento tradicional, étnico o espiritual a todos los niveles.
Artículo original: Hipérbola Janus, Presentación de «China y el regreso de Confucio» (TOR), 3/Abr/2025
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@ 0176967e:1e6f471e
2024-07-21 11:24:21Podnikanie je jazyk s "crystal clear" pravidlami. Inštrumentalisti vidia podnikanie staticky, a toto videnie prenášajú na spoločnosť. Preto nás spoločnosť vníma často negatívne. Skutoční podnikatelia sú však "komunikátori".
Jozef Martiniak je zakladateľ AUSEKON - Institute of Austrian School of Economics
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@ 2b24a1fa:17750f64
2025-04-28 09:11:34Eine Stunde Klassik! Der Münchner Pianist und "Musikdurchdringer" Jürgen Plich stellt jeden Dienstag um 20 Uhr bei Radio München (https://radiomuenchen.net/stream/) große klassische Musik vor. Er teilt seine Hör- und Spielerfahrung und seine persönliche Sicht auf die Meisterwerke. Er spielt selbst besondere, unbekannte Aufnahmen, erklärt, warum die Musik so und nicht anders klingt und hat eine Menge aus dem Leben der Komponisten zu erzählen.
Sonntags um 10 Uhr in der Wiederholung. Oder hier zum Nachhören:
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@ 0176967e:1e6f471e
2024-07-21 11:20:40Ako sa snažím praktizovať LunarPunk bez budovania opcionality "odchodom" do zahraničia. Nie každý je ochotný alebo schopný meniť "miesto", ako však v takom prípade minimalizovať interakciu so štátom? Nie návod, skôr postrehy z bežného života.
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@ 2b24a1fa:17750f64
2025-04-28 09:08:01„Ganz im Geiste des klassischen Kabaretts widmen sich Franz Esser und Michael Sailer den Ereignissen des letzten Monats: Was ist passiert? Und was ist dazu zu sagen? Das ist oft frappierend - und manchmal auch zum Lachen.“
https://soundcloud.com/radiomuenchen/vier-wochen-wahnsinn-april-25?
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@ 0176967e:1e6f471e
2024-07-20 08:28:00Tento rok vás čaká workshop na tému "oranžové leto" s Jurajom Bednárom a Mariannou Sádeckou. Dozviete sa ako mení naše vnímanie skúsenosť s Bitcoinom, ako sa navigovať v dnešnom svete a odstrániť mentálnu hmlu spôsobenú fiat životom.
Na workshop je potrebný extra lístok (môžete si ho dokúpiť aj na mieste).
Pre viac informácií o oranžovom lete odporúčame pred workshopom vypočuťi si podcast na túto tému.
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2025-04-28 09:04:17|
| |:-:| |LIPOVETSKY, Gilles; La era del vacío; Anagrama, 2006|
El libro que nos disponemos a reseñar hoy es enormemente complejo, y lo es en a medida que cuestiona elementos clave que ayudan a explicar desde el ámbito de la sociología y la filosofía una serie de cambios culturales, sociales y subjetivos en las sociedades occidentales desde mediados del siglo XX en adelante. La era del vacío: Ensayos sobre el individualismo contemporáneo fue publicada originalmente en el año 1983. Con un estilo ensayísticos y profundamente analítico Gilles Lipovetsky nos ofrece un análisis que trasciende los límites de la sociología clásica, al analizar fenómenos tan propios de nuestro tiempo como la subjetividad posmoderna, el hedonismo consumista y el declive de los grandes relatos ideológicos.
Este libro, que fue de una importancia capital en el momento de su publicación y durante la década de los años 80, se puede considerar como el primer intento de sistematizar la posmodernidad más allá de las teorías estéticas, centrándose en aspectos culturales y psicológicos cotidianos. Para Lipovetsky el mundo posmoderno está inmerso en una serie de procesos de mutación que pueden resultar ambiguos, así como tensiones, pero también con nuevas posibilidades.
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| |:-:| |Gilles Lipovetsky (Millau, Francia, 1944)|
El autor parte de una premisa fundamental: y es que la modernidad ha dado paso a un nuevo estadio de la sociedad, el cual se caracteriza por la disolución de las grandes narrativas colectivas que antes daban sentido de conjunto a las vidas humanas. Frente a la racionalidad industrial, la ética del trabajo y la identidad colectiva que dominaban en los siglos precedentes, el individuo moderno encuentra ahora una posición de autonomía total y radical, pero, como contrapartida, también de vacío existencial. La sociedad de nuestros días, se mueve a un flujo de novedades que tienen un carácter efímero, limitado en el tiempo, consumos inmediatos y obsesión por la apariencia. En este contexto, la promesa de satisfacción inmediata a través del consumo y del individualismo no logra llenar ese vacío interior que se va generando en los individuos.
Lipovetsky describe como, con el advenimiento de la posmodernidad, las promesas de progreso y emancipación se han visto reemplazadas por una búsqueda permanente del placer inmediato, donde lo superficial y lo efímero se convierten en valores predominantes. Es un vacío que va mucho más allá del ámbito social y cultural, y que se extiende también al ámbito de lo subjetivo. El individuo se enfrenta a una sensación de pérdida de sentido que obtiene su mejor reflejo en la percepción de su vida y su relación con los demás. De ahí el título del libro: La era del vacío, que no solamente delata la ausencia de contenido, sino también la falta de profundidad, la superficialidad, que caracteriza a la vida moderna.
Pero el libro no se limita a una mera descripción o diagnóstico de esta situación que acabamos de esbozar, sino que su análisis pretende enfocarse en sus causas. Las transformaciones de la estructura social, la democratización del consumo, el ascenso del neoliberalismo, la tecnificación de las relaciones humanas y, en última instancia, un fenómeno de plena actualidad hoy, en 2025, como es la globalización. Estos son algunos de los factores fundamentales que explican todos estos procesos disolutivos, que Lipovetsky explica desde la perspectiva del sociólogo y el filósofo, manteniendo cierta distancia y ofreciendo respuestas, o soluciones, que huyen de toda simplicidad.
La obra muestra una crítica y escepticismo frente al pensamiento típicamente liberal que nos habla de las ilusiones del progreso y la emancipación total, como parte de las características de la modernidad. Frente a este espejismo, nuestro autor nos invita a reflexionar sobre la necesidad de encontrar nuevos sentidos y valores en un mundo donde éstos parecen desmoronarse por completo. Es una invitación a pensar críticamente sobre nuestra época y reconocer los desafíos que se plantean ante la fragmentación de los grandes relatos de la modernidad y la prevalencia de formas superfluas de existencia.
Uno de los elementos centrales de la obra, como ya hemos señalado al inicio, es la caracterización del hombre contemporáneo como un individuo narcisista, que viene a representar una especie de alternativa frente a la caída de las ideologías, un nuevo tipo humano surgido de la disolución de los grandes relatos colectivos. Y el término no tiene para Lipovetsky ninguna carga peyorativa ni negativa, sino que es un síntoma de esta época, el cual permite comprender cómo ha mutado la subjetividad en el seno de las sociedades del Occidente liberal, en las denominadas «democracias avanzadas».
El narcisista posmoderno no se caracteriza por un ego hipertrofiado en el terreno de lo psicológico, sino por la reorientación de la vida en todos sus aspectos al dominio del yo, que conforma un universo propio, con su bienestar, su apariencia, su desarrollo personal o sus emociones. Es lo que Gilles Lipovetsky concibe como una figura «postheroica», totalmente desvinculada del pathos del sacrificio, del deber, de la militancia política o religiosa. Ha perdido toda conexión con fenómenos de ámbito colectivo, con la lucha de clases propuesta desde filas izquierdistas, por la trascendencia religiosa, ignorando tanto el pasado como el futuro, y radicando su existencia en el presente, en el goce inmediato y la autorrealización subjetiva. Pero conviene insistir en que no se trata de un fenómeno individual o psicológico, sino que obedece a un patrón cultural compartido, moldeado por la lógica del consumo, por la publicidad, por la psicología positiva, por la cultura del entretenimiento y los dispositivos de la autoayuda. Lipovetsky emplea el concepto de «privatización de la existencia» para definir este tipo humano. En el escenario de la vida pública los compromisos ideológicos se diluyen y el ciudadano se transforma en un consumidor, en un mero espectador, en un usuario. La política se reduce a un fenómeno estético, se trivializa y se concibe como un espectáculo, como ese eterno simulacro del que habla Jean Baudrillard o el «postureo» que empleamos desde cierto lenguaje coloquial.
Lejos de advertirse una crítica a este fenómeno, Lipovetsky reconoce en este narcisismo contemporáneo una «forma de emancipación», que a partir de la liberación de los grandes relatos permite formas de vida más «flexibles, más «abiertas» y «tolerantes». Todo ello en un proceso de empobrecimiento del horizonte simbólico, especialmente en lo colectivo, en detrimento del incremento de la autonomía individual. Nosotros añadiríamos, que de una autonomía individual cada vez más atomizada, inorgánica y alienada. De hecho, este individuo hedonista no está dispuesto a sacrificarse por los demás, ni a morir por una causa, y cualquier cosa, por sagrada que sea, es susceptible de ser negociada siempre que revierta en su bienestar.
Las consecuencias derivadas de este proceso, y del nuevo tipo humano posmoderno, son obvias y evidentes, y ahí tenemos la disolución de los lazos sociales fuertes. Vemos cómo las estructuras tradicionales, que han garantizado la cohesión de las comunidades humanas, y que han definido un sentido de pertenencia, un ligamen hacia la Familia, la Religión o la Patria se ven seriamente deteriorados y condenados a desaparecer por completo. Estos elementos han dejado de regular la vida cotidiana, y se imponen vínculos débiles, fluidos y limitados en el tiempo; todo adquiere un sentido limitado en el tiempo, lo efímero domina las relaciones sociales, las afinidades electivas, adquiriendo cierto grado de virtualidad, de ilusorio.
El hombre posmoderno vive rodeado de tecnología, conectado con sus semejantes a través de ordenadores, de las redes sociales, pero solitario, autónomo y desorientado. Con lo cual la «era del vacío» que nos describe Lipovetsky no es realmente un vacío físico o material, sino un vacío simbólico, donde todas las coordenadas que nos conecten a un principio trascendente se encuentran totalmente ausentes. De modo que, el narcisismo clásico de la modernidad más temprana, la que ostentaba el burgués ilustrado, racional y kantiano que creía en la Razón, el Deber o el Progreso, se ha transformado en la posmodernidad, y lo ha hecho a través del narcisista que cree en su «derecho a ser feliz», a «cuidarse» o «experimentar» en una superficialidad que delata la desvinculación de todo centro de gravedad ontológico.
De modo que el hedonismo se nos presenta como el principio rector de la vida social en la era posmoderna, lo cual supone que es una norma compartida, y que conlleva una ética implícita que estructura los comportamientos y aspiraciones, y hasta los valores morales del hombre contemporáneo. Este hecho ha determinado la traslación del «deber» al «placer» en la historia reciente del sujeto occidental, en la que se puede ver cierta idea de «democratización» de esta concepción del narcisismo, de la idea de la «felicidad» y del «culto al yo» en términos puramente materiales, que son transmitidos a través de la publicidad o los manuales de autoayuda.
Este hedonismo está vinculado a una forma particular de existencia, que viene determinada por la lógica del consumo. Y es que para Lipovetsky, como reconoce en otra obra posterior, El imperio de lo efímero, la sociedad ya no se organiza en torno a la producción sino del consumo, entendido éste como el consumo de bienes, experiencias, imágenes, información o sensaciones. De ahí la importancia que poseen para este tipo humano el supermercado, el centro comercial, la pantalla de un ordenador o las redes sociales, que se convierten en el epicentro de la vida posmoderna.
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| |:-:| |LIPOVETSKY, Gilles; El imperio de lo efímero: La moda y su destino en las sociedades modernas; Anagrama, 2006|
Para Lipovetsky, el acto de consumir no se limita únicamente a las necesidades materiales, sino que se transforma en un «ritual identitario», en una fuente de sentido efímero pero intenso. El hombre posmoderno no compra solo por necesidad, sino para experimentar, como parte de la vida, para definirse. Es un consumo no utilitario, sino expresivo, «para sentirse bien consigo mismo». De modo que este imperativo de bienestar genera una nueva sensibilidad estética: la estética invade la vida cotidiana. La ropa, el diseño interior de una casa, el cuerpo, la alimentación, la música etc, todo se convierte en una cuestión de estilo, en una elección subjetiva. Esto supone que el individuo ya no se define por su pertenencia a un grupo dentro de la jerarquía social ni por su función dentro de la comunidad, sino por su «estética de la existencia». Y es esta estetización de la vida donde, según nuestro autor, reside una forma de construcción de sentido en un mundo desencantado.
No obstante, y siempre según Lipovetsky, este hedonismo posmoderno no se encuentra amparado por el puro libertinaje, sino que el placer también está regulado, normativizado e incluso tecnificado. Lipovetsky insiste en que no se trata de un exceso de placer dionisiaco, sino un placer racionalizado, controlado y saludable. El nuevo hedonista atiende a una responsabilidad, y vemos como hace yoga, se alimenta bien y se cuida en aspectos psicológicos y emocionales. El autor nos habla de un hedonista disciplinado, que gestiona su placer de manera ordenada y eficiente. No obstante, Lipovestsky reconoce que en esta búsqueda del goce y el placer individual, en la búsqueda de una pretendida «libertad» y «autonomía personal», el hedonista posmoderno se somete cada vez más a la tecnología, y es más susceptible de ser controlado por protocolos y normas en nombre de un pretendido bienestar. Todo ello en nombre de lo que en el libro se define como una «reformulación estética y emocional».
Con lo cual, podemos trazar ya en base al libro una cierta definición de la posmodernidad, que más allá de un simple momento histórico, nos ofrece un nuevo marco conceptual, determinado por una transformación profunda a nivel simbólico, ético y estético que han estructurado la cultura llamada occidental desde la Ilustración. Lejos de coincidir con el «fin de la historia» preconizado por Francis Fukuyama, Lipovetsky nos habla de una metamorfosis gradual, caracterizado por la disolución de las grandes narrativas, el debilitamiento del pathos trágico y el auge de la lógica de la inmediatez. Se trata de un enfoque más antropológico y existencial, donde el acento no se pone en una nueva forma de pensar, sino de vivir, de sentir, de relacionarse con el tiempo, con los demás y con uno mismo. Más que una crisis del conocimiento, del saber, se plantea como un reordenamiento del imaginario colectivo, donde el presente hegemoniza todo el interés y se concentra lo trascendente de la escala temporal.
Los grandes ideales desaparecen, aquellos que ofrecían una cierta densidad simbólica y una orientación trascendente. Con la posmodernidad se suprimen las «promesas fuertes» y se promueve una cultura de la «ligereza», de lo provisional, de lo fragmentario. Es un nuevo estilo de vida, menos trágico y combativo, menos solemne, donde lo lúdico y subjetivo acapara amplias cotas de la existencia. Es una mutación cultural donde lo maleable se impone bajo formas de reversibilidad y flexibilidad, todo se hace dúctil, sin compromiso, sin cohesión ni conexión alguna con la trascendencia o sistemas de pensamiento que condicionen la existencia en términos de disciplina y rigidez.
Otro rasgo esencial de la condición del hombre posmoderno es la «evaporación de lo trágico». De algún modo, en la era moderna, el héroe trágico encarnaba la tensión entre el deber y el deseo, entre el orden cósmico y la libertad individual. Sin embargo, en la posmodernidad, esta figura se desvanece, de modo que el sujeto particular ya no se encuentra escindido entre el yo y el deber colectivo, y ahora aparece condicionado por su propio presente, por sus decisiones cotidianas, la gestión de su tiempo, de su cuerpo y cuestiones que se desarrollan en un plano estrictamente personal. La cultura posmoderna evita el conflicto trágico, desplaza la culpa y trivializa el mal. Ya no encontramos el pathos heroico, sino el tono cool, la distancia frente a los hechos y la ironía. Y así tenemos la política convertida en un mero espectáculo, en el arte autorreferencial, en el relativismo moral, y, en definitiva, con un pensamiento débil.
Pero para el sociólogo francés esta ausencia de lo trágico no debe interpretarse como una pérdida, y para él el vacío no es nihilismo, sino una nueva forma de relacionarse con el ser, de manera menos intensa, más liviana, menos sagrada pero más «habitable». El hombre no cae en el desencanto, ni tampoco renuncia a encontrar sentido, pero lo busca de forma dispersa y provisional, sin grandes pretensiones. De este modo la vida se reduce a una relación entre vacío y deseo, entre la autonomía y la saturación de estímulos, que al fin y al cabo supone otro vacío, porque tras la saturación de estímulos solamente hay un sucedáneo de felicidad, dentro de esa tendencia a lo efímero, tras la cual, solo queda el vacío absoluto.
Y es que el diagnóstico que Lipovestsky nos hace de la cultura posmoderna sitúa como elemento central el papel de los medios de comunicación y la cultura del espectáculo. La televisión, el cine y la publicidad, a los que hoy podríamos añadir internet y las redes sociales, no son meros vehículos de información o entretenimiento, sino que son estructuras simbólicas que reconfiguran la sensibilidad, el tiempo y la percepción de la realidad. De hecho son los medios de comunicación de masas los instrumentos y catalizadores en la difusión de la cultura narcisista y el hedonismo personalizado, en la que el principio racional y discursivo cede su lugar a formas más emocionales, fragmentadas y efímeras en la relación con el entorno y el mundo en definitiva. De hecho, el lenguaje de lo visual, totalmente sobredimensionado, ha generado todo un lenguaje que se ha hecho dominante en nuestra época, en el que se privilegia la apariencia y la vivencia subjetiva por encima de toda estructura estable y jerárquica. Y de ahí deriva la espectacularización generalizada a través de la imagen, del impacto que produce, erosionando las fronteras entre lo público y lo privado, entre lo verdadero y simulado, entre el acontecimiento y la escenificación.
En este contexto, el espectador sustituye al ciudadano comprometido, y la política se convierte en un consumo simbólico, en el que el sentido de comunidad es reemplazado por consensos mediáticos efímeros. Para Lipovetsky no es, una vez más, una tragedia, sino que produce un efecto ambivalente: y si bien debilita el compromiso, también produce una sensibilidad más abierta, plural y tolerancia hacia la diferencia. Todo esto, bajo un aparente lenguaje académico y bienpensante, que no hace sino alimentar el pensamiento débil y la destrucción de cualquier idea o principio comunitario sustentado sobre pensamientos fuertes, sobre un principio de jerarquía y cohesión a nivel colectivo.
El hombre posmoderno ignora toda tensión espiritual, y en consecuencia vive la temporalidad de forma acelerada y discontinua, sometido a un flujo incesante de información, de novedades, y concibe su entorno y los estímulos que recibe de éste, desde la perspectiva de la obsolescencia programada. Por eso no se plantea jamás el porvenir e ignora por completo el pasado, para vivir bajo un «presentismo» hedonista, de tal modo que en su percepción del tiempo este no es sino un conjunto de instantes vividos, registrados, compartidos y, en última instancia, olvidados. Así se pierde el sentido de continuidad y duración, impidiendo que tanto a nivel colectivo como individual se pueda construir una identidad coherente o cimentar aquella existente.
Esto lo vemos a través de la cultura digital, aunque en el año que Lipovetsky escribe su libro, en 1983, todavía se encontraba en un estado embrionario o incipiente, pero ya se impone la idea de la hiperconexión, la instantaneidad, la lógica del feed y de la viralidad, que ahondan sobre una experiencia centrífuga del tiempo, donde ya no importa lo que es duradero, sino lo que aparece, lo que afecta y circula en un cambio continuo. De tal modo que el individuo se adapta a la velocidad más que a la profundidad.
Obviamente, la consecuencia es el debilitamiento y la destrucción de todas las formas narrativas tradicionales, tanto a nivel religioso e histórico como ideológico e incluso familiar. Todas estas estructuras, que garantizaron durante generaciones una estabilidad y cohesión en diferentes planos, pierden su poder para dejar su lugar a la cultura de las vivencias dispersas, fragmentadas e inconsistentes. Todo queda reducido al capricho de la experiencia subjetiva del individuo, a sus elecciones de consumo o sus afectos momentáneos. Y tenemos un amplio reflejo de estas ideas en todos los ámbitos, en el arte, en el cine o en la política. La «democratización cultural» y el «pluralismo ético» al que alude el autor, no es sino la destrucción de certezas y principios de carácter vertical, verdades íntegras y sagradas que entran en declive hasta desaparecer.
Ahora bien, una vez destruido el sentido profundo y cohesionador de las grandes instituciones normativas, como la familia, la escuela o el Estado, que sustentaban el cuerpo social mediante su legitimidad simbólica, ¿qué impacto pueden tener sobre los fundamentos éticos y educativos de la sociedad? ¿Qué ocurre con la transmisión de valores, la responsabilidad moral o el pensamiento crítico en una época tan volátil y carente de toda solidez? No existe ningún principio de autoridad en el que cimentar ninguno de estos principios, todo ha sido sacrificado en nombre de la autonomía individual, la horizontalidad y las identidades subjetivas. Es evidente que se ha generado un vacío y la falta de un anclaje o asidero en los procesos educativos. Los profesores ya no encarnan una figura de autoridad, y se encuentran supeditados a las exigencias de los alumnos, a su satisfacción emocional, a su sensibilidad, a garantizar que no se aburran, relegados a una posición de negociación constante. De ahí que la educación y el papel del docente se vea obligado a reformularse y adaptarse a nuevas formas de pedagogía, que en opinión del sociólogo francés, debe adaptarse a la transmisión de conocimientos para «formar subjetividades» dentro de una «pedagogía de la autonomía crítica» que no imponga valores.
En esta era del vacío, caracterizada por el debilitamiento, cuando no aniquilación, de los valores trascendentes, ya no hay una moral universal que pueda orientar las acciones. Lo que prima es una ética débil, individual, basada en la sensibilidad, en la empatía y eso que los progres y globalistas llaman «respeto a la diferencia», que entra en contraste con el desprecio y degradación de lo propio, de lo que le es familiar, de la Tradición en definitiva. Y que lejos de las observaciones de Lipovetsky, sí supone la caída en un relativismo autodestructivo. De hecho, el autor francés ve todas estas transformaciones propiamente posmodernas, de un pensamiento débil, fragmentado, antijerárquico y servil ante cualquier contaminación cultural o asunción de los valores destructivos y globalistas del melting pot como el efecto de una evolución positiva, donde lo emocional y afectivo, lo irracional, invita a la claudicación en nombre de una falsa justicia social, un falso ecologismo o la desfiguración de componentes étnicos, tradicionales e identitarios a nivel colectivo, para defender al modelo multicultural y globalizado, estandarizado y yermo de particularidades. Precisamente lo que hoy tenemos, con países totalmente destruidos en su esencia histórica, étnica y de legados tradicionales en la Europa occidental. Todo en nombre de un pensamiento superficial, fugaz y débil, entregado a los protocolos, normativas e imposiciones de una plutocracia global que somete e impone a una masa idiotizada Agendas en nombre de pretendidos principios de justicia que no son sino la antesala de formas aberrantes y deshumanizadoras de control tecnocrático.
Para terminar, aunque ya hayamos adelantado alguna de nuestras conclusiones respecto al libro, creemos que Gilles Lipovetsky ofrece una visión funcional a la posmodernidad, a la justificación de una serie de transformaciones sociales, culturales, políticas y humanas, que lejos de tener un efecto positivo, de evolución y progreso, envilecen y destruyen a la propia condición humana. La conversión del hombre en un ser infantilizado, egoísta y pusilánime, incapaz de adquirir compromisos colectivos, del sacrificio por grandes ideales que han sustentado modelos de civilización perpetuados en los siglos, no es sino el síntoma de un gran fracaso, de la claudicación del hombre, síntoma de la cultura de la cancelación y la promoción de una antropología negativa y el fomento del nihilismo, por más que se trate de camuflar con eufemismos absurdos y un lenguaje academicista totalmente hueco, retórica vacía, que no deja de ocultar una crítica necesaria frente a cambios estructurales que no son, ni mucho menos, el fruto de una evolución natural, sino totalmente inducidos, y en los que la tecnología sirve de medio de alienación generalizada del sujeto posmoderno. La «era del vacío» de la que nos habla Lipovetsky es una época de decadencia, degeneración, caos y deshumanización, y sin duda alguna es una oportunidad para volver a conectar con el pasado, para religarse con la Tradición e invertir el signo de los tiempos.
Desde un enfoque específicamente tradicionalista, el diagnóstico que Lipovestky nos hace de la sociedad posmoderna, si bien puede ser válido y aceptable desde una perspectiva crítica, resulta insuficiente porque no podemos insertarlo en una cosmovisión propiamente tradicionalista, y suran una sociedad tradicional completamente ajena a los ítems ideológicos que representa esta última. De ahí que la Modernidad, para René Guénon, por ejemplo, represente una desviación extrema de los principios metafísicos y universales que estructuran las civilizaciones tradicionales. Para Lipovetsky esté fenómeno es relativamente reciente, y no el resultado de un proceso histórico amplio y contrastado, que comienza a gestarse en los siglos. Lipovetsky diferencia la modernidad y la posmodernidad, como si fueran dos procesos independientes, en los que solamente nos habla de síntomas sin realizar un análisis de conjunto que llegue a la raíz metafísica del problema. Tanto para René Guénon como para Julius Evola, el individualismo se trata de un proceso de involución espiritual, un descenso hacia lo material y lo informe, algo que no entraña ningún aspecto positivo, y menos en los términos de una «mayor libertad», y donde Lipovetsky ve una posibilidad y una serie de cambios adaptativos, el tradicionalismo ve una forma de claudicación ante lo moderno.
La posición fría, distante y observadora de Lipovetsky difiere radicalmente del tradicionalismo, y no solo por esa ausencia de profundidad en el terreno de lo metafísico, sino porque no ofrece ninguna alternativa al oscurecimiento de lo sagrado, y se limita a una mera descripción de la decadencia, todo desde la perspectiva del científico.
Además, la superficialidad de Lipovetsky se queda únicamente en la catalogación cultural de fenómenos como el hedonismo y el individualismo, sin abordar la radical antítesis que éstos representan frente a lo espiritual. La actitud resignada del sociólogo francés actúa en el marco mental e ideológico de la posmodernidad, frente a la cual no hay que mostrar ningún tipo de alternativa, ni restaurar jerarquías naturales, ni apostar por valores heroicos y aristocráticos, ni mucho menos por la formación de una élite espiritual. Es obvio que el marco conceptual e ideológico en el que actúa este autor es radicalmente ajeno a cualquier concepción morfológica de la historia y concepción tradicional aneja a la misma.
Por otro lado, no se dejan de evidenciar lagunas en su discurso, en la medida que ve en el individualismo el motor de la posmodernidad, y lo asocia a la liberación respecto a las «ataduras» colectivas que representan la Patria, la religión o la comunidad, pero frente a éstas reconoce que solo queda un vacío existencial. Es un individualismo, que nada tiene que ver con aquel individualismo del kshatriya integrado en una jerarquía espiritual, que se erige como guía y estandarte espiritual frente a las naturalezas inferiores. El individualismo posmoderno no tienden a la diferenciación, sino que tiene un efecto de degeneración y envilecimiento a través de la autoexpresión narcisista y el hedonismo, atributos característicos del burgués y de la degenerada antropología liberal.
En definitiva, Lipovetsky es incapaz de proponer una salida positiva al conflicto que plantea la posmodernidad. Para él debe ser aceptado como un estadio inevitable de la historia, mientras que el tradicionalismo exige una ruptura total y absoluta con el mundo moderno, en la que la primacía de los principios metafísicos se convierte en una piedra angular, y son innegociables. El autor francés permanece atrapado en las paradojas y antinomias de un horizonte secular que critica, cayendo en una contradicción insoluble y sin posibilidad de continuidad. La «era del vacío», que abarca un periodo más amplio que el de la propia posmodernidad, representa un punto de ruptura con la Tradición primordial, y plantea una única salida, la cual pasa por la restauración jerárquica y espiritual. No podemos contemplar todos estos procesos disolutivos anejos a nuestro tiempo con la «neutralidad» de Gilles Lipovetsky, sin atender a la existencia de un horizonte metafísico y de Verdades eternas, rescatando el principio de lo Sagrado y la acción heroica en última instancia.
Artículo original: Hipérbola Janus, Reseña: «La era del vacío» de Gilles Lipovetsky (TOR), 28/Abr/2025
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@ 3bf0c63f:aefa459d
2024-06-13 15:40:18Why relay hints are important
Recently Coracle has removed support for following relay hints in Nostr event references.
Supposedly Coracle is now relying only on public key hints and
kind:10002
events to determine where to fetch events from a user. That is a catastrophic idea that destroys much of Nostr's flexibility for no gain at all.- Someone makes a post inside a community (either a NIP-29 community or a NIP-87 community) and others want to refer to that post in discussions in the external Nostr world of
kind:1
s -- now that cannot work because the person who created the post doesn't have the relays specific to those communities in their outbox list; - There is a discussion happening in a niche relay, for example, a relay that can only be accessed by the participants of a conference for the duration of that conference -- since that relay is not in anyone's public outbox list, it's impossible for anyone outside of the conference to ever refer to these events;
- Some big public relays, say, relay.damus.io, decide to nuke their databases or periodically delete old events, a user keeps using that big relay as their outbox because it is fast and reliable, but chooses to archive their old events in a dedicated archival relay, say, cellar.nostr.wine, while prudently not including that in their outbox list because that would make no sense -- now it is impossible for anyone to refer to old notes from this user even though they are publicly accessible in cellar.nostr.wine;
- There are topical relays that curate content relating to niche (non-microblogging) topics, say, cooking recipes, and users choose to publish their recipes to these relays only -- but now they can't refer to these relays in the external Nostr world of
kind:1
s because these topical relays are not in their outbox lists. - Suppose a user wants to maintain two different identities under the same keypair, say, one identity only talks about soccer in English, while the other only talks about art history in French, and the user very prudently keeps two different
kind:10002
events in two different sets of "indexer" relays (or does it in some better way of announcing different relay sets) -- now one of this user's audiences cannot ever see notes created by him with their other persona, one half of the content of this user will be inacessible to the other half and vice-versa. - If for any reason a relay does not want to accept events of a certain kind a user may publish to other relays, and it would all work fine if the user referenced that externally-published event from a normal event, but now that externally-published event is not reachable because the external relay is not in the user's outbox list.
- If someone, say, Alex Jones, is hard-banned everywhere and cannot event broadcast
kind:10002
events to any of the commonly used index relays, that person will now appear as banned in most clients: in an ideal world in which clients followednprofile
and other relay hints Alex Jones could still live a normal Nostr life: he would print business cards with hisnprofile
instead of annpub
and clients would immediately know from what relay to fetch his posts. When other users shared his posts or replied to it, they would include a relay hint to his personal relay and others would be able to see and then start following him on that relay directly -- now Alex Jones's events cannot be read by anyone that doesn't already know his relay.
- Someone makes a post inside a community (either a NIP-29 community or a NIP-87 community) and others want to refer to that post in discussions in the external Nostr world of
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@ 3bf0c63f:aefa459d
2024-06-12 15:26:56How to do curation and businesses on Nostr
Suppose you want to start a Nostr business.
You might be tempted to make a closed platform that reuses Nostr identities and grabs (some) content from the external Nostr network, only to imprison it inside your thing -- and then you're going to run an amazing AI-powered algorithm on that content and "surface" only the best stuff and people will flock to your app.
This will be specially good if you're going after one of the many unexplored niches of Nostr in which reading immediately from people you know doesn't work as you generally want to discover new things from the outer world, such as:
- food recipe sharing;
- sharing of long articles about varying topics;
- markets for used goods;
- freelancer work and job offers;
- specific in-game lobbies and matchmaking;
- directories of accredited professionals;
- sharing of original music, drawings and other artistic creations;
- restaurant recommendations
- and so on.
But that is not the correct approach and damages the freedom and interoperability of Nostr, posing a centralization threat to the protocol. Even if it "works" and your business is incredibly successful it will just enshrine you as the head of a platform that controls users and thus is prone to all the bad things that happen to all these platforms. Your company will start to display ads and shape the public discourse, you'll need a big legal team, the FBI will talk to you, advertisers will play a big role and so on.
If you are interested in Nostr today that must be because you appreciate the fact that it is not owned by any companies, so it's safe to assume you don't want to be that company that owns it. So what should you do instead? Here's an idea in two steps:
- Write a Nostr client tailored to the niche you want to cover
If it's a music sharing thing, then the client will have a way to play the audio and so on; if it's a restaurant sharing it will have maps with the locations of the restaurants or whatever, you get the idea. Hopefully there will be a NIP or a NUD specifying how to create and interact with events relating to this niche, or you will write or contribute with the creation of one, because without interoperability none of this matters much.
The client should work independently of any special backend requirements and ideally be open-source. It should have a way for users to configure to which relays they want to connect to see "global" content -- i.e., they might want to connect to
wss://nostr.chrysalisrecords.com/
to see only the latest music releases accredited by that label or towss://nostr.indiemusic.com/
to get music from independent producers from that community.- Run a relay that does all the magic
This is where your value-adding capabilities come into play: if you have that magic sauce you should be able to apply it here. Your service, let's call it
wss://magicsaucemusic.com/
, will charge people or do some KYM (know your music) validation or use some very advanced AI sorcery to filter out the spam and the garbage and display the best content to your users who will request the global feed from it (["REQ", "_", {}]
), and this will cause people to want to publish to your relay while others will want to read from it.You set your relay as the default option in the client and let things happen. Your relay is like your "website" and people are free to connect to it or not. You don't own the network, you're just competing against other websites on a leveled playing field, so you're not responsible for it. Users get seamless browsing across multiple websites, unified identities, a unified interface (that could be different in a different client) and social interaction capabilities that work in the same way for all, and they do not depend on you, therefore they're more likely to trust you.
Does this centralize the network still? But this a simple and easy way to go about the matter and scales well in all aspects.
Besides allowing users to connect to specific relays for getting a feed of curated content, such clients should also do all kinds of "social" (i.e. following, commenting etc) activities (if they choose to do that) using the outbox model -- i.e. if I find a musician I like under
wss://magicsaucemusic.com
and I decide to follow them I should keep getting updates from them even if they get banned from that relay and start publishing onwss://nos.lol
orwss://relay.damus.io
or whatever relay that doesn't even know what music is.The hardcoded defaults and manual typing of relay URLs can be annoying. But I think it works well at the current stage of Nostr development. Soon, though, we can create events that recommend other relays or share relay lists specific to each kind of activity so users can get in-app suggestions of relays their friends are using to get their music from and so on. That kind of stuff can go a long way.
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@ 9ecbb0e7:06ab7c09
2024-06-10 16:42:17Santiago de Cuba, 10 de junio de 2024 - El Centro Nacional de Investigaciones Sismológicas (CENAIS) informa que el día de hoy, 10 de junio de 2024, a las 10:55 AM hora local, se registró un evento sísmico perceptible en la región de Santiago de Cuba. A continuación, se detallan los parámetros del sismo:
** Tiempo de origen (UTC): 2024-06-10T14:55:03** Latitud: 19.950° Longitud: -75.828° Profundidad: 25 km Magnitud: 4.3 en la escala de Richter Ubicación: 7 km al sureste de Santiago de Cuba, provincia de Santiago de Cuba
La incertidumbre en las mediciones es la siguiente:
Tiempo de origen: ± 0.6 segundos Latitud: ± 7 km Longitud: ± 3 km Profundidad: ± 5 km
Contexto del Evento
El evento sísmico se produjo a una profundidad de 25 km y tuvo una magnitud de 4.3 en la escala de Richter, siendo localizado a 7 km al sureste de la ciudad de Santiago de Cuba. Este sismo es uno de los eventos perceptibles recientes en la región, conocida por su actividad sísmica debido a la interacción de las placas tectónicas del Caribe y Norteamericana.