1/ Right now, each #bitcoin 'produced' by mining generates, on average, around $3,226 in losses to miners:

Bitcoin Average Mining Costs: $20,095
BTC/USD: ~$16,869

And the mining net negative has been a reality for a few weeks in a row.
2/ When considering this quick accounting of around $3,226 of losses for each new BTC put into circulation and that every 10 minutes, 6.25 BTC are issued, we are talking about an estimated loss of $120,975/hour.

Draw your own conclusions about this... 🤷
3/ This Wednesday (21st), another large mining company demonstrates the difficulties faced in the activity, as Core Scientific filed for Chapter 11 bankruptcy in the USA.

It's not the first, not the second, and probably not the last.
4/ With each new event like this one, the #bitcoin network tends towards centralization.

It's scary to think that a network of over $300 billion USD in capitalization has a Nakamoto Coefficient (NC) equal to 2. With 2 entities being responsible for >52% of all hashrate produced.
5/ This is just one more demonstration, among many others, of how flawed #Bitcoin's economic and security model is. Or, as the advocates of the leading currency say: "this is just another FUD". 🤷

We need to have an open mind to change our minds based on new learnings.
6/ Bitcoin was an excellent idea, which emerged during a major global economic crisis and brought a rare innovation to our monetary and technological system, but technology continued to evolve and the BTC experiment brought us previously unknown answers.
7/ I don't believe bitcoin is the best candidate to continue to bring the innovation we need to decentralized money.

Currently, there are already coins that better fulfill some of the functions of bitcoin, such as #nano; or #monero for privacy.
nano.org/en/blog/the-be…

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More from @vinibarbosabr

Dec 21
1/ Neste momento, cada #bitcoin 'produzido' com a mineração gera, em média, cerca de US $3.226 em prejuízo para os mineradores:

Bitcoin Average Mining Costs: $20.095
BTC/USD: ~$16.869

E o net negative de mineração já é uma realidade há algumas semanas em sequência.
2/ Nesta quarta-feira (21), mais uma grande mineradora demonstra as dificuldades enfrentadas na atividade, já que a Core Scientific deu entrada no processo de falência pelo capítulo 11 dos EUA.

Não é a primeira, nem a segunda e, provavelmente, não será a última.
3/ A cada novo evento deste, mais a rede do #bitcoin tende para a centralização.

É assustador pensar que uma rede de mais de $300 bilhões USD de capitalização possui Coeficiente de Nakamoto (NC) igual a 2. Com 2 entidades sendo responsáveis por >52% de toda a hashrate produzida.
Read 8 tweets
Nov 7
1/ There is harsh censorship going on in Brazil right now, and the mainstream media is not reporting things with integrity – either for fear of being punished too (in retaliation), which is fair, or for their own political bias.

Here's a quick thread about the latest act. ⬇️
2/ First of all, people are using ad-hominem a lot.
So I want to make it clear that:
1) I did not vote for Jair Bolsonaro;
2) I did not support Jair Bolsonaro as president;
3) I am a harsh critic of his attitudes and that of Bolsonaro's followers asking for military intervention.
3/ That said, I also believe that many of the current allegations are indeed a manipulative narrative, which has been going on for years in preparation for Bolsonaro's defeat in the elections. They say that the democratic process in Brazil is a fraud and votes were manipulated.
Read 13 tweets
Oct 11
1/ I've been trying to understand more about the #LightningNetwork from a user experience point of view, as I see many enthusiasts openly advocating the tool as a real scaling solution while using #BTC as money for everyday life — trying to get new users on board.
2/ I have a keen interest in using decentralized money for everyday activities, and when I talk to people who are looking for the same (or living it in practice), their experiences involving lightning are usually pretty negative.

Among the negative reports I see, mainly ⬇️
3/
> Custody;
> Theoretical vulnerabilities;
> Dependence on intermediaries for routing and tendency to centralization;
> "Voucher" system;
> Payments that are not completed;
> Lack of routes between channels;
> Higher fees than expected;
> Lack of liquidity for higher values;
Read 25 tweets
Oct 11
1/ Venho tentando entender mais sobre a #LightningNetwork de um ponto de vista de experiência do usuário, já que vejo muitas pessoas defendendo abertamente a ferramenta como uma solução real de escalabilidade e uso do #bitcoin como dinheiro para o dia-a-dia.
2/ Eu tenho um grande interesse no uso de dinheiro descentralizado para atividades corriqueiras e, quando converso com pessoas que estão buscando o mesmo (ou vivendo isso na prática), as experiências envolvendo a #lightning, normalmente, são bastante negativas.
3/ Então, na minha percepção, existe uma contradição entre:

A) muita gente defendendo o uso da tecnologia, sem tantos relatos de uso real;

B) muita gente que usa, relatando que a experiência é ruim e não é uma solução viável.

Minha própria experiência foi negativa.
Read 18 tweets
Mar 31
Alguns comentários sobre o artigo do @PeriniBruno no @Estadao @EstadaoEconomia publicado esta manhã com o título: "Por que o #bitcoin será cada vez mais adotado pelas pessoas".

Espero poder trazer um debate saudável sobre o assunto para quem interessar. 1/
Como produtor de conteúdo e redator, eu gosto muito de receber feedback sobre o que escrevo.
Adoro receber feedbacks positivos, mas minha evolução profissional se dá principalmente onde existe conflito, pois me motiva a melhorar e me permite aprender coisas novas. 2/
Eu também acredito que, como divulgadores de informação em uma área de conhecimento ainda com grande assimetria de informação, o aprendizado constante é essencial para trazer informações corretas e educar pessoas que buscam entender melhor o universo #cripto e #blockchain. 3/
Read 27 tweets
Mar 31
Entenderam porque #nano é importante?
Já vi muita gente dizendo que o #Pix mata o use case da $XNO, o que é um absurdo.

Centralização e liquidez injetada não substituem dinheiro descentralizado peer-to-peer.
E sim, isso vale para seu canal #LN custodial que precisa de roteador.
Casos como este demonstram a importância de um dinheiro descentralizado, auto-soberano, ponta-a-ponta e que não depende do fornecimento de liquidez de terceiros.
#nano resolve todos estes problemas, sendo um dinheiro extremamente eficiente, sem taxas e com confirmações em menos de 1 segundo (parecido com o pix, mas diferente).
Read 6 tweets

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