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The end of money : the story of bitcoin,…
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The end of money : the story of bitcoin, cryptocurrencies and the blockchain revolution (edição 2017)

por Adam Rothstein

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Murder for hire. Drug trafficking. Embezzlement. Money laundering... These might sound like plot lines of a thriller, but they are true stories from the short history of cryptocurrencies - digital currencies conceived by computer hackers and cryptographers that represent a completely new sort of financial transaction that could soon become mainstream. The most famous - or infamous - cryptocurrency is bitcoin. But look beyond its tarnished reputation and something much shinier emerges. The technology that underlies bitcoin and other cryptocurrencies - the blockchain - is hailed as the greatest advancement since the invention of the internet. It is now moving away from being the backbone for a digital currency and making inroads into other core concepts of society: identity, ownership and even the rule of law. The End of Money is your essential introduction to this transformative new technology that has governments, entrepreneurs and forward-thinking people from all walks of life sitting up and taking notice. ABOUT THE SERIESNew Scientist Instant Expert books are definitive and accessible entry points to the most important subjects in science; subjects that challenge, attract debate, invite controversy and engage the most enquiring minds. Designed for curious readers who want to know how things work and why, the Instant Expert series explores the topics that really matter and their impact on individuals, society, and the planet, translating the scientific complexities around us into language that's open to everyone, and putting new ideas and discoveries into perspective and context.… (mais)
Membro:arthurp4842
Título:The end of money : the story of bitcoin, cryptocurrencies and the blockchain revolution
Autores:Adam Rothstein
Informação:Boston, MA : Nicholas Brealey Publishing, [2017]
Coleções:A sua biblioteca
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The End of Money: The story of bitcoin, cryptocurrencies and the blockchain revolution por New Scientist

Adicionado recentemente porlazalot, marcociobo, Nirm, Etany, arthurp4842, rossburnett, rnyr, mcintcj
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What a confusing topic. What I did learn from this book...which was first published in 2017 and already seems out of date?.....that the end of money is probably not just around the corner. This is probably a good introduction to cryptocurrency and it's fascinating history. None of the systems of exchange that people seem to have come up with seem to be foolproof. There were a group of techos ..including the mysterious Satoshi Nakamoto (who initiated Bitcoin) who came up with the idea of using technology and computers as a way of ensuring proof of exchange over the internet.
It seems to me to boil down to an issue of trust. With normal export contracts for example a seller in one country sells to a buyer in another country and there are two main issues: have the correct goods been shipped/delivered and has the buyer paid for them? To ensure that this process works both parties typically use trusted intermediaries...normally Banks. And the banks themselves are really relying on the trust that has been built up over a period with the correspondent bank in the other country. But even with this process ....many things can go wrong and have gone wrong. (Inferior quality goods may be supplied, one of the banks may default, and so on).
Bitcoin is built around a block-chain system whereby each transaction is protected with a private key (which one person holds) and a public key which is available to all. It also relies on new "coins" being added to the system via work done by computers.....and this seems to be a significant barrier to expansion. The computers have to work for long periods to solve complex problems and this takes time and energy...massive amounts of energy. So these are physical limits..you have to provide proof of work to gain new coins.
All sorts of innovations have been developed to get around these physical limits.....providing several "levels" of trusted and less trusted computers, for example. Or "proof of stake" with another system.
Most of these systems seem to have been vulnerable to somebody who gets a 51% share and therefore can call the shots....or they underestimate human nature ..."why would anybody want to do that ...it's not logical?" .....But people still do that. And so on. My impressions from reading this book are that the blockchain idea and technology still offers a lot of promise ...but it seems to be doing best where it's being employed by the existing financial services network ...with it's time-tested systems of experience and trust in-built. But there is a huge amount of work going on to use the block chain technology for all sorts of other applications ...such as exchange of contracts, or health records, or local networks for trading solar energy. Probably where the systems are small everything will be fine but with huge numbers involved and the potential for slip ups...either in programming, or human errors ..if something can go wrong (Murphy's law)....it WILL go wrong.
I must say that I come away from this book slightly bewildered by the plethora of activity that is taking place across the spectrum of block chain technology. But have we seen the end of money? ...well probably not because, as the authors point out "the creation of money through credit, the lynchpin of financial technology since the Renaissance period, is impossible with cryptocurrency. So, cryptocurrencies are unlikely to replace the role of money and credit any time soon. ( )
  booktsunami | Apr 6, 2019 |
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Murder for hire. Drug trafficking. Embezzlement. Money laundering... These might sound like plot lines of a thriller, but they are true stories from the short history of cryptocurrencies - digital currencies conceived by computer hackers and cryptographers that represent a completely new sort of financial transaction that could soon become mainstream. The most famous - or infamous - cryptocurrency is bitcoin. But look beyond its tarnished reputation and something much shinier emerges. The technology that underlies bitcoin and other cryptocurrencies - the blockchain - is hailed as the greatest advancement since the invention of the internet. It is now moving away from being the backbone for a digital currency and making inroads into other core concepts of society: identity, ownership and even the rule of law. The End of Money is your essential introduction to this transformative new technology that has governments, entrepreneurs and forward-thinking people from all walks of life sitting up and taking notice. ABOUT THE SERIESNew Scientist Instant Expert books are definitive and accessible entry points to the most important subjects in science; subjects that challenge, attract debate, invite controversy and engage the most enquiring minds. Designed for curious readers who want to know how things work and why, the Instant Expert series explores the topics that really matter and their impact on individuals, society, and the planet, translating the scientific complexities around us into language that's open to everyone, and putting new ideas and discoveries into perspective and context.

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