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Cryptocurrency documentary hypothesis

I just gave him my love. He also gave Vitalik his first glimpse of Bitcoin. It was , somewhat early, but Dmitry was an avowed anarcho-capitalist, a cynical child of Soviet and post-Soviet Russia. For many others like him, especially in those early days, the first encounter with Bitcoin was like a religious epiphany—powerful, life-altering, a glimpse of an entirely different and perhaps more agreeable way of ordering human affairs.

He had already been nursing some inchoate ideas about the risks and intrinsic unfairness of centralized systems and authority. And I assumed that people in those institutions were kind of like Mr. How can I screw a thousand people over this time? But in many ways what drew him in was the elegance of the system, invented, it seemed, by a rogue outsider out of thin air. It suited a world view, a dream of a fluid, borderless, decentralized financial system beyond the reach of governments and banks, inclined as they inevitably are toward corruption and self-dealing, or at least toward distortions of incentive.

In the eighties, cryptographers and computer scientists began trying to devise a foolproof form of digital money, and a way to execute transactions and contracts without the involvement or rent-seeking of third parties. It was the man, woman, or group of humans known as Satoshi Nakamoto who, with Bitcoin in , solved the crux—the so-called double-spend problem.

This requires some mechanism for keeping track of what you have, whom you gave it to, and how much they now have. And that was the blockchain. Definitions of blockchain are as various as the metaphors—bingo, Google Docs, a giant room of transparent safes—that people use to try to illustrate them. Broadly speaking, a blockchain is an evolving record of all transactions that is maintained, simultaneously and in common, by every computer in the network of that blockchain, be it Ethereum, Bitcoin, or Monero.

Think, as some have suggested, of a dusty leather-bound ledger in a Dickensian counting house, a record of every transaction relevant to that practice. Except that every accountant in London, and in Calcutta, has the same ledger, and when one adds a line to his own the addition appears in all of them. Once a transaction is affirmed, it will—theoretically, anyway—be in the ledger forever, unalterable and unerasable. Historically, records have been stored in one place—a temple, a courthouse, a server—and kept by whoever presided.

With blockchains, the records, under a kind of cryptographic seal, are distributed to all and belong to no one. There is no Undo button. Each new block in the chain contains all the information or, really, via the hash, a secure reference to all the information contained in the previous one, all the way back to the first one, the so-called genesis block. There are other words that are sometimes included in the definition of blockchain, but they are slippery, and grounds for endless parsing, asterisking, and debate.

Every transaction is there in the ledger for all to see. It is, fundamentally, anonymous or pseudonymous, anyway , but there are many ways for that anonymity to be compromised. The odds are high that someone, somewhere, has attempted to make an explanation like this one to you. The chain-splainer is a notorious date spoiler and cocktail-party pariah. You should have known better than to ask about mining. Mining is a reward system—compensation for helping to maintain and build a blockchain.

During this ritual, the computers in the network are competing, via brute guesswork, to be the first to get the answer to a really difficult math problem. The more computational power you have, the more guesses you can make, and the more likely you are to get the answer. The winner creates a new block and gets a reward, in, say, bitcoin—new bitcoin, which has not previously been in circulation.

Satoshi ordained that there be a finite number of bitcoin ever created—twenty-one million—so that no one could inflate away the value of existing bitcoin, as, say, the Federal Reserve does with dollars. This system is known as Proof of Work. The problem-solving exercise is proof that the computers are doing the work.

This approach has serious and, some would say, fatal, flaws. First, it requires a tremendous amount of electricity. This year, it is said, the Bitcoin network will use as much energy as the nation of Austria, and produce as much carbon dioxide as a million transatlantic flights. Mining rigs—computers designed specifically to do this work—are thirsty machines. There are open-air warehouses in remote corners of sub-Arctic Canada, Russia, and China, with machines whirring away on the tundra, creating magic money, while the permafrost melts.

Second, a small number of mining conglomerates, or pools—many of them Chinese—have wielded outsized influence over the network and the decisions that get made. Last month, one of the biggest of these, Bitmain, confirmed plans to go public.

In this scenario, the holders of the currency in question become the validators, who typically take a small cut of every approved transaction. Theoretically, the more crypto you have, the more influence you have, so PoW partisans consider PoS to be plutocratic as well—a new gloss on the old problem of too much in the hands of too few. Buterin had a knack for explaining things—at least to an audience already primed to understand. But, as he travelled around the world to Bitcoin meet-ups, he began to think that the technology was limited, that attempts to jury-rig non-money uses for this digital-money platform was the computational equivalent of a Swiss Army knife.

You basically had to devise hacks. He envisaged a one-blade-fits-all version, a blockchain platform that was broader and more adaptable to a wider array of uses and applications. The concept behind Bitcoin—a network of machines all over the world—seemed to be a building block upon which to construct a global computer capable of all kinds of activities. This is a means of setting and enforcing the terms of an agreement without a middleman—no lawyer, notary, bookie, or referee.

This could cover a simple exchange of digital money, or the sale of a house, or an insurance payout, or a bet. The reliability of the code, and of the system for checking it, would discharge humans from having to read minds and look into hearts, or from having to pay someone else to make up for the fact that they cannot. As it stands, here in the dusty old legacy economy, we have to pay other people, and squander time and resources, to establish a modicum of trust.

A favorite example is title insurance; an entire industry exists to prove that the person selling you a house is the owner in good standing. Provenance—of property, both real and intellectual—is big business, but, to the blockchain believers, it need not be. Code shall banish the odious frictions and costs. Another thing we presently outsource, perhaps to our peril, is our identity: the affirmation of who we are, along with whatever data sticks to that.

Identity as we know it now is typically maintained by a centralized state—by the taxman, the department of motor vehicles, the police. Then it spills out into the world, often without our knowledge or consent, through our transaction histories, browsing habits, and unencrypted communications. In the Google era, we spray aspects of ourselves all over the Internet.

The Ethereum network maintains the attestation. Then there are those vast realms where the old intermediaries hardly exist at all. We may find it harder to see the utility here in our daily lives, where we can rely on Citibank, Visa, Venmo, and Western Union to handle our transactions and keep track of all the money flying around. Amid such a sturdy if extractive system, the blockchain can seem like a back-office fix, a change in the accounting scheme, of interest to the systems geeks and bean counters but not to oblivious customers.

But if you are, say, a Venezuelan citizen or a Turkish journalist, or a refugee from Syria or Myanmar, the prospect of being able to maintain and render portable both money and identity could be hugely liberating, perhaps even life-saving. Unless you forget your private key. In November, , Buterin wrote up a white paper—cryptoland is a blizzard of white papers—proposing a new open-source, distributed computing platform upon which you could build all kinds of smart-contract applications and uses, as well as other coins.

He called it Ethereum. Instead, everyone who read it seemed to be impressed by its elegance and ambition. The foundational gathering, in the Ethereum creation story, occurred at the North American Bitcoin Conference in Miami, in January, They defined themselves as founders. Di Iorio had invited a fellow Toronto Bitcoiner named Joseph Lubin, then forty-nine, who, with a sense of the import of the occasion, brought along the reporter Morgen Peck, to bear witness.

The founders assumed different roles. Lubin, who had Wall Street experience, was the chief operating officer. Lubin positioned himself as the grownup in the room, the worldly chaperon. Months of work ensued, in which the founders came up with a lexicon and a conceptual framework both to define Ethereum in lay ish terms and to inoculate it against possible legal consequences. When the idea arose to sell new cryptocoins to the public, to raise money for the project, Lubin, along with Hoskinson, recognized that this might be a fraught enterprise.

It was an exercise in semiotics with vital legal implications. And it seems to have worked. We seem to have created a reality. Should it be a for-profit entity funded by an I. Different groups among the eight founders staked out different positions, with some favoring for-profit, others not-for-profit. Eventually, the founders agreed to let Buterin decide.

Six months after Miami, the whole team holed up in a house in Switzerland, in the canton of Zug, an old commodities-hedge-fund tax haven now known as Crypto Valley. This was the first time all of the founders were in one room together. Buterin, after some time alone on the patio, told Hoskinson and another founder that they were out. Later, he made clear that Ethereum would proceed as a nonprofit. Ethereum itself is based nowhere, and in traditional corporate terms is as substantial as the ether.

And so the founders, driven by discord and the appeal of more lucrative endeavors, decentralized themselves. What would a world reconstituted by smart contracts look like? One grasps at legacy tableaux: office towers emptied of bankers, lawyers, and accountants; crypto-utopian settlements on hurricane-ravaged Caribbean islands; open-air barns out on the steppes, stacked with bitcoin-mining computers. Here was blockchain as life style.

Two big bathrooms, side by side, started out unisex, but by the afternoon of the first day the conference attendees, at the urging of no centralized authority, were self-sorting: men to the one on the right, women the one on the left. On the main stage, a roster of luminaries and evangelists served up a steady diet of jargon stew, but elsewhere in the old factory you could find spoonfuls of sugar—use cases for English majors. And here it was, a month later, as sashimi, its provenance indisputable, trusted, immutable, thanks to the blockchain.

Everyone surged forward for a free taste—plate-to-mouth still requiring humans to jostle and reach. There was a panel discussion with the founders of Civil, an attempt to use the blockchain to remake the journalism business, amid the wreckage wrought by the Internet and the demise of the advertising model. And, in a small brick outbuilding, there was a demonstration of something called Cellarius, which was, according to its founder, Igor Lilic, 1 a crowdsourced sci-fi story, set in the year , after the activation of an artificial super-intelligence; 2 a community of artists and collaborators; and 3 a technological platform that its developers were gradually building out.

The host of the conference was ConsenSys, a company that Lubin started, in Brooklyn, in , after he left Ethereum. ConsenSys is an incubator of new businesses and projects that operate—or will, or would—on the Ethereum blockchain. Why is it like this? They can cite dozens of projects in various stages of emergence; none has morphed into a killer DApp. Lubin is said to be the largest holder of ether and is estimated to be worth more than a billion dollars.

A few people told me that he had started ConsenSys to enhance the value of his ether. When I asked him about this, he scoffed. I went to see Lubin in Bushwick one day, after ether, and other currencies, had suffered a huge drop in value overnight. For a great number of people at Ethereal, there was an evangelical fervor—techno-utopianism in a new guise, unaffiliated, for the most part, with Silicon Valley and the cults of Elon and Jack.

We actually believe in it. Lubin summoned a parallel reality, where heretofore unempowered citizens would be able to perform amazing feats. Like Buterin, he rejects the primacy, in business, of the charismatic founder, and yet the world can seem to insist on it. If Buterin, who is often depicted in fan art as Jesus with a Lambo, is a kind of blockchain messiah, Lubin is its Paul, both in his tireless evangelism and in his attention to practical, worldly matters.

He is an Ethereum true believer, but he is also a proponent of so-called enterprise applications—actual business uses, often on private blockchains—which could get the legacy world interested in hastening its own obsolescence. One to appeal to the cypherpunk kids, another to appeal to the adults in the room.

Lubin has a shaved head and the flat accent of a native Torontonian. Reared in Toronto his father is a dentist, his mother a retired real-estate broker , Lubin played squash and studied electrical engineering and computer science at Princeton. Among his roommates were Mike Novogratz, now a hedge-fund investor, who in became the Wall Street face of the crypto boom , and a wrestler named Richard Tavoso, known as Fudge, who kept a record of who owed what to whom in their regular poker games.

After graduating, Lubin tried to make a go of it as a pro squash player while working as a researcher on artificial-intelligence experiments, helping to build nervous systems and visual systems for robots. He married young, had a son, got divorced. There followed some years of programming and Wall Street work, including at Goldman Sachs and then at a banking consortium called Identrus.

He later developed a program for trading currencies and securities, started a fund, and did very well. Nonetheless, his encounters with the global financial markets, before and after the collapse, and his earlier immersion in science fiction and cyberpunk culture, put him in a quasi-apocalyptic frame of mind. Before he could see that idea through, he became friends with a Jamaican model and actress and moved to Kingston to help her launch a musical career.

They got a house, built a recording studio, recorded some songs, and made some videos. And then Ethereum happened. I asked Lubin what that was like. Lubin gets a twinkle in his eye when he talks about what he sees as the first opportunity in human history to create systems without the traditional clerical class, the old priesthood of the record keepers, rune readers, and bean counters. It concerns how decisions are made, and who gets to make them. Each blockchain—as a technology, a community, and a social experiment—is an exercise in achieving consensus.

The quest is a human one, so the mechanisms that rule it reflect the priorities of the mechanics. Technology, as we learn time and again, is no cure for human nature. Power accrues, even when the goal is to eliminate it.

Last year, when bitcoin miners and developers clashed over how to increase the efficiency of the network, a faction split off—a maneuver called a hard fork—and created a new version of bitcoin, called Bitcoin Cash, whose most visible cheerleader is Roger Ver, a libertarian sometimes called Bitcoin Jesus. He likes to say that digital money is as important an invention as the wheel, electricity, and the transistor. Ver, who lives in Japan, was sentenced to ten months in prison for selling explosives online; this seems to have both inflamed his mistrust of institutional authority and enhanced his credibility as an anarcho-capitalist.

They do so either on the merits—a common invocation is D. In the absence of formal hierarchy, reputational capital is paramount. The campaign to acquire it is waged largely on social media and on conference-panel stages. As the crypto stars strut their stuff, declare their allegiances, and taunt their rivals, you wind up with shifting, indistinct pecking orders. There have been more and more outspoken core developers.

One of the things you can do is tolerate them. But when he speaks millions of people around the world listen. Or they attack him. Last year, someone posted on a chat forum that Buterin had died in a car crash. The price of ether plummeted. To counter the report, Buterin posted a photo of himself, with a blockchain-appropriate time stamp—an Ethereum block number and its corresponding hash, written on a piece of paper.

The price stabilized. The DAO was a crowdsourced venture fund, a way of using smart contracts to cut out traditional venture capitalists, reduce fees, and give access to regular civilians, who contributed ether and voted on which projects to invest in. Two early aspirants were a German smart-locks startup for rental properties and bicycles and a French autonomous-electric-minicar ride-sharing venture.

At the time, it was the biggest crowdfunding ever—the equivalent, then, of about a quarter-billion dollars, and, now, of about two billion. Within weeks, it was hacked. There was a loophole in the code; the hacker, who could repeatedly take money out of the DAO before the transfers were recorded, drained more than a quarter of the funds.

In November , three US government officials testified at senate hearings that "Bitcoin has legitimate uses". According to the Washington Post , "Most of the other witnesses echoed those sentiments. Most bitcoin transactions take place on a cryptocurrency exchange , rather than being used in transactions with merchants. Prices are not usually quoted in units of bitcoin and many trades involve one, or sometimes two, conversions into conventional currencies.

In and bitcoin's acceptance among major online retailers included only three of the top U. Bitcoin is "not actually usable" for retail transactions because of high costs and the inability to process chargebacks , according to Nicholas Weaver, a researcher quoted by Bloomberg. High price volatility and transaction fees make paying for small retail purchases with bitcoin impractical, according to economist Kim Grauer.

Bitcoin started to be accepted also for real estate payments in late The first recorded sale of a house in exchange for bitcoin happened in September , when Texas based Kuper Sotheby's International Realty brokered the deal using bitpay. Two months later, a first recorded sale of apartment in the world and first real estate property in Europe was sold for bitcoin in November in the Czech republic.

The Czech real estate agency HOME Hunters brokered a deal of a 3-room apartment for a Russian buyer without using a payment service providers at all. Some U. Merchants accepting bitcoin, such as Dish Network, use the services of bitcoin payment service providers such as BitPay or Coinbase. When a customer pays in bitcoin, the payment service provider accepts the bitcoin on behalf of the merchant, directly converts it, and sends the obtained amount to merchant's bank account, charging a fee of less than 1 percent for the service.

Due to the design of bitcoin, all retail figures are only estimates. Bitcoin companies have had difficulty opening traditional bank accounts because lenders have been leery of bitcoin's links to illicit activity. The request was motivated by oil company's goal to pay its suppliers. Some Argentinians have bought bitcoins to protect their savings against high inflation or the possibility that governments could confiscate savings accounts.

Other methods of investment are bitcoin funds. The first regulated bitcoin fund was established in Jersey in July and approved by the Jersey Financial Services Commission. Forbes named bitcoin the best investment of To improve access to price information and increase transparency, on 30 April Bloomberg LP announced plans to list prices from bitcoin companies Kraken and Coinbase on its , subscription financial data terminals.

The number of bitcoin millionaires is uncertain as people can have more than one wallet. Bitcoin is useful for crowdfunding. He was shown by local TV company with a broadsheet "Hi mom, send bitcoins". The decentralization of money offered by virtual currencies like bitcoin has its theoretical roots in the Austrian school of economics , [] especially with Friedrich von Hayek in his book Denationalisation of Money: The Argument Refined , in which he advocates a complete free market in the production, distribution and management of money to end the monopoly of central banks.

Bitcoin appeals to tech-savvy libertarians , because it so far exists outside the institutional banking system and the control of governments. Bitcoin's appeal reaches from left wing critics, "who perceive the state and banking sector as representing the same elite interests, [ From Wikipedia, the free encyclopedia. For broader coverage of this topic, see Bitcoin. This article's lead section may not adequately summarize its contents.

To comply with Wikipedia's lead section guidelines , please consider modifying the lead to provide an accessible overview of the article's key points in such a way that it can stand on its own as a concise version of the article. September Further information: cryptocurrency crash. This section needs to be updated. Please update this article to reflect recent events or newly available information. Price of bitcoin, [b] logarithmic scale. Annual volatility of bitcoin [38]. Further information: Cryptocurrency bubble.

In securities , the analogical form has been described as book entry , paperless , digital , electronic , uncertificated or dematerialized. Retrieved 3 May Retrieved 28 April The Economist. The Economist Newspaper Limited. Retrieved 21 October Mercatus Center.

George Mason University. Retrieved 22 October The New York Times. Retrieved 6 May A type of digital cash, bitcoins were invented in and can be sent directly to anyone, anywhere in the world. Daily Tech. Archived from the original on 20 January Retrieved 30 September The New Yorker. Retrieved 22 December Standards vary, but there seems to be a consensus forming around Bitcoin, capitalized, for the system, the software, and the network it runs on, and bitcoin, lowercase, for the currency itself.

The Guardian. Retrieved 8 July USA Today. Retrieved 25 May Retrieved 13 January Money from nothing. Chronic deflation may keep Bitcoin from displacing its rivals". Retrieved 25 March Retrieved 3 January Bloomberg L. Retrieved 31 December Retrieved 8 August Financial Crimes Enforcement Network. Retrieved 1 June Sars is coming for you". Business Insider.

Retrieved 22 May Library of Congress. June Retrieved 14 August Retrieved 11 April The central bank will keep watching risks from Bitcoin, which is fundamentally not a currency but an investment target, Sheng Songcheng, head of the monetary authority's statistics department, told reporters in Beijing on Jan.

Bloomberg View. Bloomberg LP. A principal knock on bitcoins has been the claim that they are inherently insecure. The principal defense has been that they are as secure as "real" currency. The Wall Street Journal. Retrieved 27 January February Retrieved 3 June Retrieved 28 August Cambridge University. Retrieved 14 April Business Wire. Retrieved 5 November Retrieved 4 February Retrieved 31 October Consumer Financial Protection Bureau.

August Retrieved 10 July Bitcoin Magazine. Retrieved 15 December Archived from the original on 3 November Retrieved 2 November Retrieved 24 October Retrieved 13 October Boston University. Retrieved 11 November Social Science Research Network. There is no price stabilization mechanism. Retrieved 7 January Retrieved 15 November Casey 30 April Retrieved 23 March It's 'the Harlem Shake of currency ' ".

Retrieved 2 May The Washington Post. Retrieved 10 January Archived from the original on 7 February Journal of Monetary Economics. New York Times. Archived from the original on 16 January Retrieved 16 January Archived from the original on 18 January Retrieved 18 January Bank of Canada Staff Working Paper. Retrieved 20 April Retrieved 22 April Electronic Commerce Research and Applications. Here's what Warren Buffett is saying".

Archived from the original on 13 January Globe and Mail. Bloomberg News. Archived from the original on 9 June South China Morning Post. Archived from the original on 10 June Archived from the original on 24 October Robert Shiller on Bitcoin". Yale Insights. Yale School of Management. Archived from the original on 29 November The National Interest.

Archived from the original on 22 October Archived from the original on 15 January Archived from the original on 12 June Archived from the original on 4 June ECO Portuguese Economy. Yahoo Finance. Project Syndicate. Archived from the original on 29 December Archived from the original on 4 April Knowledge Wharton.

Archived from the original on 8 June Dialogue with the Fed. Federal Reserve Bank of St. Archived PDF from the original on 9 April The Financial Times. Archived from the original on 30 September Archived from the original on 20 March Intelligence Squared. Archived from the original on 28 April Market Watch. Archived from the original on 20 May Archived from the original on 25 June Institute for New Economic Thinking.

The Motley Fool. Archived from the original on 7 January Archived from the original on 19 December New York Post. News Corp. Archived from the original on 21 December Meredith Corporation. Retrieved 15 April Retrieved 5 October Retrieved 2 July The Daily Dot. Retrieved 23 May Retrieved 1 April World Bank Group. Retrieved 30 October Federal Council Switzerland. Swiss Confederation. Retrieved 28 November Retrieved 23 September City A. Retrieved 6 November Retrieved 26 February Hanke 18 September Huffington Post.

Not long ago, I was in Montreal for a cryptocurrency conference.

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Asia betting Money from nothing. Nobel cryptocurrency documentary hypothesis Richard Thaler emphasizes the irrationality in the bitcoin market that has led to the bubble, demonstrating the irrationality with the example of firms that have added the word blockchain to their names which have then had large increases in their stock price. My hotel, on the top floor of a big building downtown, had a roof garden with a koi pond. He married young, had a son, got divorced. There were no secrets, only problems and solutions, and the satisfaction that comes from proceeding from one toward the other.
Cryptocurrency documentary hypothesis Retrieved 15 April ukov ruza iz bet on alfa To counter the report, Buterin posted a photo of himself, with a blockchain-appropriate time stamp—an Ethereum block number and its corresponding hash, written on a piece of paper. The decentralization of money offered by cryptocurrency documentary hypothesis currencies like bitcoin has its theoretical roots in the Austrian school of economics[] especially with Friedrich von Hayek in his book Denationalisation of Money: The Argument Refinedin which he advocates a complete free market in the production, distribution and management of money to end the monopoly of central banks. He stated "You really have to stretch your imagination to infer what the intrinsic value of Bitcoin is. Power accrues, even when the goal is to eliminate it. They like to ponder and think. A type of digital cash, bitcoins were invented in and can be sent directly to anyone, anywhere in the world.
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Definitions of blockchain are as various as the metaphors—bingo, Google Docs, a giant room of transparent safes—that people use to try to illustrate them. Broadly speaking, a blockchain is an evolving record of all transactions that is maintained, simultaneously and in common, by every computer in the network of that blockchain, be it Ethereum, Bitcoin, or Monero.

Think, as some have suggested, of a dusty leather-bound ledger in a Dickensian counting house, a record of every transaction relevant to that practice. Except that every accountant in London, and in Calcutta, has the same ledger, and when one adds a line to his own the addition appears in all of them. Once a transaction is affirmed, it will—theoretically, anyway—be in the ledger forever, unalterable and unerasable. Historically, records have been stored in one place—a temple, a courthouse, a server—and kept by whoever presided.

With blockchains, the records, under a kind of cryptographic seal, are distributed to all and belong to no one. There is no Undo button. Each new block in the chain contains all the information or, really, via the hash, a secure reference to all the information contained in the previous one, all the way back to the first one, the so-called genesis block.

There are other words that are sometimes included in the definition of blockchain, but they are slippery, and grounds for endless parsing, asterisking, and debate. Every transaction is there in the ledger for all to see. It is, fundamentally, anonymous or pseudonymous, anyway , but there are many ways for that anonymity to be compromised.

The odds are high that someone, somewhere, has attempted to make an explanation like this one to you. The chain-splainer is a notorious date spoiler and cocktail-party pariah. You should have known better than to ask about mining. Mining is a reward system—compensation for helping to maintain and build a blockchain. During this ritual, the computers in the network are competing, via brute guesswork, to be the first to get the answer to a really difficult math problem.

The more computational power you have, the more guesses you can make, and the more likely you are to get the answer. The winner creates a new block and gets a reward, in, say, bitcoin—new bitcoin, which has not previously been in circulation. Satoshi ordained that there be a finite number of bitcoin ever created—twenty-one million—so that no one could inflate away the value of existing bitcoin, as, say, the Federal Reserve does with dollars.

This system is known as Proof of Work. The problem-solving exercise is proof that the computers are doing the work. This approach has serious and, some would say, fatal, flaws. First, it requires a tremendous amount of electricity. This year, it is said, the Bitcoin network will use as much energy as the nation of Austria, and produce as much carbon dioxide as a million transatlantic flights.

Mining rigs—computers designed specifically to do this work—are thirsty machines. There are open-air warehouses in remote corners of sub-Arctic Canada, Russia, and China, with machines whirring away on the tundra, creating magic money, while the permafrost melts. Second, a small number of mining conglomerates, or pools—many of them Chinese—have wielded outsized influence over the network and the decisions that get made. Last month, one of the biggest of these, Bitmain, confirmed plans to go public.

In this scenario, the holders of the currency in question become the validators, who typically take a small cut of every approved transaction. Theoretically, the more crypto you have, the more influence you have, so PoW partisans consider PoS to be plutocratic as well—a new gloss on the old problem of too much in the hands of too few. Buterin had a knack for explaining things—at least to an audience already primed to understand.

But, as he travelled around the world to Bitcoin meet-ups, he began to think that the technology was limited, that attempts to jury-rig non-money uses for this digital-money platform was the computational equivalent of a Swiss Army knife. You basically had to devise hacks. He envisaged a one-blade-fits-all version, a blockchain platform that was broader and more adaptable to a wider array of uses and applications. The concept behind Bitcoin—a network of machines all over the world—seemed to be a building block upon which to construct a global computer capable of all kinds of activities.

This is a means of setting and enforcing the terms of an agreement without a middleman—no lawyer, notary, bookie, or referee. This could cover a simple exchange of digital money, or the sale of a house, or an insurance payout, or a bet. The reliability of the code, and of the system for checking it, would discharge humans from having to read minds and look into hearts, or from having to pay someone else to make up for the fact that they cannot. As it stands, here in the dusty old legacy economy, we have to pay other people, and squander time and resources, to establish a modicum of trust.

A favorite example is title insurance; an entire industry exists to prove that the person selling you a house is the owner in good standing. Provenance—of property, both real and intellectual—is big business, but, to the blockchain believers, it need not be.

Code shall banish the odious frictions and costs. Another thing we presently outsource, perhaps to our peril, is our identity: the affirmation of who we are, along with whatever data sticks to that. Identity as we know it now is typically maintained by a centralized state—by the taxman, the department of motor vehicles, the police.

Then it spills out into the world, often without our knowledge or consent, through our transaction histories, browsing habits, and unencrypted communications. In the Google era, we spray aspects of ourselves all over the Internet. The Ethereum network maintains the attestation. Then there are those vast realms where the old intermediaries hardly exist at all.

We may find it harder to see the utility here in our daily lives, where we can rely on Citibank, Visa, Venmo, and Western Union to handle our transactions and keep track of all the money flying around. Amid such a sturdy if extractive system, the blockchain can seem like a back-office fix, a change in the accounting scheme, of interest to the systems geeks and bean counters but not to oblivious customers. But if you are, say, a Venezuelan citizen or a Turkish journalist, or a refugee from Syria or Myanmar, the prospect of being able to maintain and render portable both money and identity could be hugely liberating, perhaps even life-saving.

Unless you forget your private key. In November, , Buterin wrote up a white paper—cryptoland is a blizzard of white papers—proposing a new open-source, distributed computing platform upon which you could build all kinds of smart-contract applications and uses, as well as other coins. He called it Ethereum. Instead, everyone who read it seemed to be impressed by its elegance and ambition.

The foundational gathering, in the Ethereum creation story, occurred at the North American Bitcoin Conference in Miami, in January, They defined themselves as founders. Di Iorio had invited a fellow Toronto Bitcoiner named Joseph Lubin, then forty-nine, who, with a sense of the import of the occasion, brought along the reporter Morgen Peck, to bear witness.

The founders assumed different roles. Lubin, who had Wall Street experience, was the chief operating officer. Lubin positioned himself as the grownup in the room, the worldly chaperon. Months of work ensued, in which the founders came up with a lexicon and a conceptual framework both to define Ethereum in lay ish terms and to inoculate it against possible legal consequences.

When the idea arose to sell new cryptocoins to the public, to raise money for the project, Lubin, along with Hoskinson, recognized that this might be a fraught enterprise. It was an exercise in semiotics with vital legal implications.

And it seems to have worked. We seem to have created a reality. Should it be a for-profit entity funded by an I. Different groups among the eight founders staked out different positions, with some favoring for-profit, others not-for-profit. Eventually, the founders agreed to let Buterin decide. Six months after Miami, the whole team holed up in a house in Switzerland, in the canton of Zug, an old commodities-hedge-fund tax haven now known as Crypto Valley.

This was the first time all of the founders were in one room together. Buterin, after some time alone on the patio, told Hoskinson and another founder that they were out. Later, he made clear that Ethereum would proceed as a nonprofit. Ethereum itself is based nowhere, and in traditional corporate terms is as substantial as the ether.

And so the founders, driven by discord and the appeal of more lucrative endeavors, decentralized themselves. What would a world reconstituted by smart contracts look like? One grasps at legacy tableaux: office towers emptied of bankers, lawyers, and accountants; crypto-utopian settlements on hurricane-ravaged Caribbean islands; open-air barns out on the steppes, stacked with bitcoin-mining computers. Here was blockchain as life style. Two big bathrooms, side by side, started out unisex, but by the afternoon of the first day the conference attendees, at the urging of no centralized authority, were self-sorting: men to the one on the right, women the one on the left.

On the main stage, a roster of luminaries and evangelists served up a steady diet of jargon stew, but elsewhere in the old factory you could find spoonfuls of sugar—use cases for English majors. And here it was, a month later, as sashimi, its provenance indisputable, trusted, immutable, thanks to the blockchain. Everyone surged forward for a free taste—plate-to-mouth still requiring humans to jostle and reach. There was a panel discussion with the founders of Civil, an attempt to use the blockchain to remake the journalism business, amid the wreckage wrought by the Internet and the demise of the advertising model.

And, in a small brick outbuilding, there was a demonstration of something called Cellarius, which was, according to its founder, Igor Lilic, 1 a crowdsourced sci-fi story, set in the year , after the activation of an artificial super-intelligence; 2 a community of artists and collaborators; and 3 a technological platform that its developers were gradually building out. The host of the conference was ConsenSys, a company that Lubin started, in Brooklyn, in , after he left Ethereum.

ConsenSys is an incubator of new businesses and projects that operate—or will, or would—on the Ethereum blockchain. Why is it like this? They can cite dozens of projects in various stages of emergence; none has morphed into a killer DApp. Lubin is said to be the largest holder of ether and is estimated to be worth more than a billion dollars. A few people told me that he had started ConsenSys to enhance the value of his ether.

When I asked him about this, he scoffed. I went to see Lubin in Bushwick one day, after ether, and other currencies, had suffered a huge drop in value overnight. For a great number of people at Ethereal, there was an evangelical fervor—techno-utopianism in a new guise, unaffiliated, for the most part, with Silicon Valley and the cults of Elon and Jack.

We actually believe in it. Lubin summoned a parallel reality, where heretofore unempowered citizens would be able to perform amazing feats. Like Buterin, he rejects the primacy, in business, of the charismatic founder, and yet the world can seem to insist on it.

If Buterin, who is often depicted in fan art as Jesus with a Lambo, is a kind of blockchain messiah, Lubin is its Paul, both in his tireless evangelism and in his attention to practical, worldly matters. He is an Ethereum true believer, but he is also a proponent of so-called enterprise applications—actual business uses, often on private blockchains—which could get the legacy world interested in hastening its own obsolescence. One to appeal to the cypherpunk kids, another to appeal to the adults in the room.

Lubin has a shaved head and the flat accent of a native Torontonian. Reared in Toronto his father is a dentist, his mother a retired real-estate broker , Lubin played squash and studied electrical engineering and computer science at Princeton. Among his roommates were Mike Novogratz, now a hedge-fund investor, who in became the Wall Street face of the crypto boom , and a wrestler named Richard Tavoso, known as Fudge, who kept a record of who owed what to whom in their regular poker games.

After graduating, Lubin tried to make a go of it as a pro squash player while working as a researcher on artificial-intelligence experiments, helping to build nervous systems and visual systems for robots. He married young, had a son, got divorced. There followed some years of programming and Wall Street work, including at Goldman Sachs and then at a banking consortium called Identrus.

He later developed a program for trading currencies and securities, started a fund, and did very well. Nonetheless, his encounters with the global financial markets, before and after the collapse, and his earlier immersion in science fiction and cyberpunk culture, put him in a quasi-apocalyptic frame of mind. Before he could see that idea through, he became friends with a Jamaican model and actress and moved to Kingston to help her launch a musical career.

They got a house, built a recording studio, recorded some songs, and made some videos. And then Ethereum happened. I asked Lubin what that was like. Lubin gets a twinkle in his eye when he talks about what he sees as the first opportunity in human history to create systems without the traditional clerical class, the old priesthood of the record keepers, rune readers, and bean counters.

It concerns how decisions are made, and who gets to make them. Each blockchain—as a technology, a community, and a social experiment—is an exercise in achieving consensus. The quest is a human one, so the mechanisms that rule it reflect the priorities of the mechanics. Technology, as we learn time and again, is no cure for human nature. Power accrues, even when the goal is to eliminate it. Last year, when bitcoin miners and developers clashed over how to increase the efficiency of the network, a faction split off—a maneuver called a hard fork—and created a new version of bitcoin, called Bitcoin Cash, whose most visible cheerleader is Roger Ver, a libertarian sometimes called Bitcoin Jesus.

He likes to say that digital money is as important an invention as the wheel, electricity, and the transistor. Ver, who lives in Japan, was sentenced to ten months in prison for selling explosives online; this seems to have both inflamed his mistrust of institutional authority and enhanced his credibility as an anarcho-capitalist. They do so either on the merits—a common invocation is D.

In the absence of formal hierarchy, reputational capital is paramount. The campaign to acquire it is waged largely on social media and on conference-panel stages. As the crypto stars strut their stuff, declare their allegiances, and taunt their rivals, you wind up with shifting, indistinct pecking orders. There have been more and more outspoken core developers. One of the things you can do is tolerate them. But when he speaks millions of people around the world listen.

Or they attack him. Last year, someone posted on a chat forum that Buterin had died in a car crash. The price of ether plummeted. To counter the report, Buterin posted a photo of himself, with a blockchain-appropriate time stamp—an Ethereum block number and its corresponding hash, written on a piece of paper. The price stabilized. The DAO was a crowdsourced venture fund, a way of using smart contracts to cut out traditional venture capitalists, reduce fees, and give access to regular civilians, who contributed ether and voted on which projects to invest in.

Two early aspirants were a German smart-locks startup for rental properties and bicycles and a French autonomous-electric-minicar ride-sharing venture. At the time, it was the biggest crowdfunding ever—the equivalent, then, of about a quarter-billion dollars, and, now, of about two billion.

Within weeks, it was hacked. There was a loophole in the code; the hacker, who could repeatedly take money out of the DAO before the transfers were recorded, drained more than a quarter of the funds. Others insisted that doing so would be a violation of the principle that blocks must remain immutable. What is law? What is the covenant? It was almost epistemological. We were a bunch of computer geeks way out of our depth. The majority of Ethereum users followed Buterin and other prominent figures onto a new blockchain, while the fundamentalists stayed on the old chain, according to which the ether had been lost.

The latter became known as Ethereum Classic, where, theoretically, the hacker, whoever it is, still holds stolen ether. In some respects, Bitcoin is as much a critique of the fiat money system as it is an alternative to it. It wants you to hold its beer. The Ethereum network is a platform for other currencies and tokens. They like to ponder and think. It showed that Ethereum took errors seriously. And that it was practical and not dogmatic. Louis , stated, "Is bitcoin a bubble?

Yes, if bubble is defined as a liquidity premium. American investor Warren Buffett warned investors about bitcoin in , "Stay away from it. It's a mirage, basically. He believes that bitcoin is a non-productive asset. Buffett's close associate Charlie Munger is even more direct in his disdain. Trading cryptocurrencies is "just dementia" according to Munger.

Bitcoin is "worthless" and a "turd". Did I make myself clear? There is nothing to support bitcoin except the hope that you will sell it to someone for more than you paid for it. George Soros , answering an audience question after a speech in Davos, Switzerland in , said that cryptocurrencies are not a store of value but are an economic bubble.

Nevertheless, they may not crash due to the rising influence of dictators trying to "build a nest egg abroad". James Chanos , known as the "dean of the short sellers", believes that bitcoin and other cryptocurrencies are a mania and useful only for tax avoidance or otherwise hiding income from the government. Bitcoin "is simply a security speculation game masquerading as a technological breakthrough in monetary policy".

Two lead software developers of bitcoin, Gavin Andresen [87] and Mike Hearn, [88] have warned that bubbles may occur. On 13 September , Jamie Dimon referred to bitcoin to as a "fraud", [89] comparing it to pyramid schemes , and stated that JPMorgan Chase would fire employees trading while the company released a report critical of the cryptocurrency. Some journalists, [94] economists, [95] [96] and the central bank of Estonia [97] have voiced concerns that bitcoin is a Ponzi scheme.

In , Eric Posner , a law professor at the University of Chicago, stated that "a real Ponzi scheme takes fraud; bitcoin, by contrast, seems more like a collective delusion. In billionaire Howard Marks investor referred to bitcoin as a pyramid scheme. Zero Hedge claimed that the same day Dimon made his statement, JP Morgan also purchased a large amount of bitcoins for its clients.

Financial journalists and analysts, economists, and investors have attempted to predict the possible future value of bitcoin. In April , economist John Quiggin stated, "bitcoins will attain their true value of zero sooner or later, but it is impossible to say when".

In December , finance professor Mark T. The "death" of bitcoin has been proclaimed numerous times. Forbes magazine declared bitcoin "dead" in June , [] followed by Gizmodo Australia in August Peter Greenhill, Director of E-Business Development for the Isle of Man, commenting on the obituaries paraphrased Mark Twain saying "reports of bitcoin's death have been greatly exaggerated".

Some economists have responded positively to bitcoin while others have expressed skepticism. Velde, Senior Economist at the Chicago Fed , described it as "an elegant solution to the problem of creating a digital currency". Louis , stated that bitcoin is a threat to the establishment, which he argues is a good thing for the Federal Reserve System and other central banks , because it prompts these institutions to operate sound policies.

Free software movement activist Richard Stallman has criticized the lack of anonymity and called for reformed development. Marcus calls bitcoin a "great place to put assets" but claims it will not be a currency until price volatility is reduced. In November , three US government officials testified at senate hearings that "Bitcoin has legitimate uses". According to the Washington Post , "Most of the other witnesses echoed those sentiments.

Most bitcoin transactions take place on a cryptocurrency exchange , rather than being used in transactions with merchants. Prices are not usually quoted in units of bitcoin and many trades involve one, or sometimes two, conversions into conventional currencies. In and bitcoin's acceptance among major online retailers included only three of the top U. Bitcoin is "not actually usable" for retail transactions because of high costs and the inability to process chargebacks , according to Nicholas Weaver, a researcher quoted by Bloomberg.

High price volatility and transaction fees make paying for small retail purchases with bitcoin impractical, according to economist Kim Grauer. Bitcoin started to be accepted also for real estate payments in late The first recorded sale of a house in exchange for bitcoin happened in September , when Texas based Kuper Sotheby's International Realty brokered the deal using bitpay. Two months later, a first recorded sale of apartment in the world and first real estate property in Europe was sold for bitcoin in November in the Czech republic.

The Czech real estate agency HOME Hunters brokered a deal of a 3-room apartment for a Russian buyer without using a payment service providers at all. Some U. Merchants accepting bitcoin, such as Dish Network, use the services of bitcoin payment service providers such as BitPay or Coinbase. When a customer pays in bitcoin, the payment service provider accepts the bitcoin on behalf of the merchant, directly converts it, and sends the obtained amount to merchant's bank account, charging a fee of less than 1 percent for the service.

Due to the design of bitcoin, all retail figures are only estimates. Bitcoin companies have had difficulty opening traditional bank accounts because lenders have been leery of bitcoin's links to illicit activity. The request was motivated by oil company's goal to pay its suppliers. Some Argentinians have bought bitcoins to protect their savings against high inflation or the possibility that governments could confiscate savings accounts. Other methods of investment are bitcoin funds.

The first regulated bitcoin fund was established in Jersey in July and approved by the Jersey Financial Services Commission. Forbes named bitcoin the best investment of To improve access to price information and increase transparency, on 30 April Bloomberg LP announced plans to list prices from bitcoin companies Kraken and Coinbase on its , subscription financial data terminals. The number of bitcoin millionaires is uncertain as people can have more than one wallet. Bitcoin is useful for crowdfunding.

He was shown by local TV company with a broadsheet "Hi mom, send bitcoins". The decentralization of money offered by virtual currencies like bitcoin has its theoretical roots in the Austrian school of economics , [] especially with Friedrich von Hayek in his book Denationalisation of Money: The Argument Refined , in which he advocates a complete free market in the production, distribution and management of money to end the monopoly of central banks.

Bitcoin appeals to tech-savvy libertarians , because it so far exists outside the institutional banking system and the control of governments. Bitcoin's appeal reaches from left wing critics, "who perceive the state and banking sector as representing the same elite interests, [ From Wikipedia, the free encyclopedia. For broader coverage of this topic, see Bitcoin. This article's lead section may not adequately summarize its contents.

To comply with Wikipedia's lead section guidelines , please consider modifying the lead to provide an accessible overview of the article's key points in such a way that it can stand on its own as a concise version of the article. September Further information: cryptocurrency crash. This section needs to be updated. Please update this article to reflect recent events or newly available information.

Price of bitcoin, [b] logarithmic scale. Annual volatility of bitcoin [38]. Further information: Cryptocurrency bubble. In securities , the analogical form has been described as book entry , paperless , digital , electronic , uncertificated or dematerialized.

Retrieved 3 May Retrieved 28 April The Economist. The Economist Newspaper Limited. Retrieved 21 October Mercatus Center. George Mason University. Retrieved 22 October The New York Times. Retrieved 6 May A type of digital cash, bitcoins were invented in and can be sent directly to anyone, anywhere in the world. Daily Tech. Archived from the original on 20 January Retrieved 30 September The New Yorker.

Retrieved 22 December Standards vary, but there seems to be a consensus forming around Bitcoin, capitalized, for the system, the software, and the network it runs on, and bitcoin, lowercase, for the currency itself. The Guardian. Retrieved 8 July USA Today. Retrieved 25 May Retrieved 13 January Money from nothing. Chronic deflation may keep Bitcoin from displacing its rivals". Retrieved 25 March Retrieved 3 January Bloomberg L.

Retrieved 31 December Retrieved 8 August Financial Crimes Enforcement Network. Retrieved 1 June Sars is coming for you". Business Insider. Retrieved 22 May Library of Congress. June Retrieved 14 August Retrieved 11 April The central bank will keep watching risks from Bitcoin, which is fundamentally not a currency but an investment target, Sheng Songcheng, head of the monetary authority's statistics department, told reporters in Beijing on Jan.

Bloomberg View. Bloomberg LP. A principal knock on bitcoins has been the claim that they are inherently insecure. The principal defense has been that they are as secure as "real" currency. The Wall Street Journal. Retrieved 27 January February Retrieved 3 June Retrieved 28 August Cambridge University.

Retrieved 14 April Business Wire. Retrieved 5 November Retrieved 4 February Retrieved 31 October Consumer Financial Protection Bureau. August Retrieved 10 July Bitcoin Magazine. Retrieved 15 December Archived from the original on 3 November Retrieved 2 November Retrieved 24 October Retrieved 13 October Boston University.

Retrieved 11 November Social Science Research Network. There is no price stabilization mechanism. Retrieved 7 January Retrieved 15 November Casey 30 April Retrieved 23 March It's 'the Harlem Shake of currency ' ". Retrieved 2 May The Washington Post. Retrieved 10 January Archived from the original on 7 February Journal of Monetary Economics.

New York Times. Archived from the original on 16 January Retrieved 16 January Archived from the original on 18 January Retrieved 18 January Bank of Canada Staff Working Paper. Retrieved 20 April Retrieved 22 April Electronic Commerce Research and Applications. Here's what Warren Buffett is saying". Archived from the original on 13 January Globe and Mail.

Bloomberg News. Archived from the original on 9 June South China Morning Post. Archived from the original on 10 June Archived from the original on 24 October Robert Shiller on Bitcoin". Yale Insights. Yale School of Management. Archived from the original on 29 November The National Interest.

Archived from the original on 22 October Archived from the original on 15 January Archived from the original on 12 June Archived from the original on 4 June ECO Portuguese Economy. Yahoo Finance. Project Syndicate. Archived from the original on 29 December Archived from the original on 4 April Knowledge Wharton.

Archived from the original on 8 June Dialogue with the Fed. Federal Reserve Bank of St. Archived PDF from the original on 9 April The Financial Times. Archived from the original on 30 September

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Zirkel by CC 4. Big Think Edge. Videos Has science made religion useless? Videos Human sexual desire: Is monogamy natural? The best technology fades into the background of our lives. Cryptocurrencies will do the same, becoming a new asset class for investors like stocks and bonds. Soon people will ask: "Do you have cryptocurrency in your investment porfolio?

High Growth Handbook. Big ideas. Once a week. Subscribe to our weekly newsletter. Northwell Health. Northwell Health president and CEO Michael Dowling explains how, as the largest healthcare provider in New York, his team had to continuously organize, innovate, and readjust to dangerous and unpredictable conditions in a way that guaranteed safety for the staff and the best treatment for over , coronavirus patients.

From making their own supplies when they ran out, to coordinating with government at every level and making sense of new statistics and protocols, Northwell focused on strengthening internal and external communication to keep the ship from sinking. Keep reading Show less. The way we teach science misses something key: Human context Why do we deprive students of the historical and cultural context of science?

Credit: Adobe Stock via Archivist and stta. The teaching of science must and can be humanized at all levels, from nonscience courses to technical advanced courses. By teaching science only as a technical endeavor, we deprive students and future scientists of a more inclusive worldview where science is seen as part of our human need to make sense of the world.

The challenges we face in the modern world call for an engagement of the sciences and the humanities that starts in the classroom and becomes an essential aspect of the public sphere. It's too hard. It's not fun. It's all about memorizing a bunch of formulas. The teacher is too tough. Homework is stupid and pointless.

The list goes on. Of course, there are spectacular exceptions, truly motivating and inspiring science teachers across the world. One or two of these mentors were essential to many of us who became professional scientists. What do they have that other teachers don't? What makes a good science teacher? There is pedagogy, of course. How you present the material, how you relate to your students.

But first and foremost, it is passion that makes a science teacher stand out, or any teacher for that matter. Passion for the subject matter, passion for teaching, passion for making a difference and becoming someone unique in the lives of the many young people the teacher meets in the classroom. A successful teacher never steps outside of his own humanity as he steps into the classroom. Quite the opposite, the act of teaching should be a celebration of our shared humanity, of our mission to pass on knowledge from generation to generation so as to keep the appetite for discovery and invention burning.

Marcus Aurelius helped me survive grief and rebuild my life It's a common misconception that to be a Stoic is to be in possession of a stiff upper lip. But what this interpretation of Stoicism gets wrong is that our emotions, even the most painful ones, need not be our enemies if we can learn to think of them as our guides.

This might seem obviously false, or like the words of a person who has never encountered real suffering. But it was during one of the worst crises of my life that I found my way to Stoicism and, through Stoicism, to something that's as close to acceptance as I think it's possible to find on this plane of existence. Describing him as sick seems almost farcical as there weren't fevers or tumours or anything really that we could point to and say: 'This — this is what is wrong.

And above all, there was confusion. It took a couple of months, but eventually he was diagnosed with myasthenia gravis: a rare autoimmune disease that we were told normally afflicts women under 40 and men over 60, neither of which he was, and that, all things considered, was relatively minor, and that we could likely expect to go spontaneously into remission over the next five to 10 years. However, the prognosis turned out to be as off the mark as his chances of developing the disease in the first place.

Two days before Thanksgiving, his body began to fail him. The man who had once carried me over a threshold no longer had the strength in his neck to lift his own head off a pillow. I called over his objections and he was brought, protesting, to the hospital where he was ultimately admitted to the intensive-care unit. From there, he continued to decline. What I witnessed will stay with me for the rest of my life: the man I love, the father of the one- and five-year-olds I had left at home, went into total respiratory failure.

His entire body turned as purple as an eggplant, and I stood by while an emergency intubation was performed to save his life. Like a Peer-to-Peer network for file sharing. This decision became the birth of cryptocurrency. They are the missing piece Satoshi found to realize digital cash. To realize digital cash you need a payment network with accounts, balances, and transaction.

One major problem every payment network has to solve is to prevent the so-called double spending : to prevent that one entity spends the same amount twice. Usually, this is done by a central server who keeps record about the balances. So you need every single entity of the network to do this job.

Every peer in the network needs to have a list with all transactions to check if future transactions are valid or an attempt to double spend. But how can these entities keep a consensus about these records? If the peers of the network disagree about only one single, minor balance, everything is broken. They need an absolute consensus. Usually, you take, again, a central authority to declare the correct state of balances.

But how can you achieve consensus without a central authority? Nobody did know until Satoshi emerged out of nowhere. In fact, nobody believed it was even possible. Satoshi proved it was. His major innovation was to achieve consensus without a central authority. Cryptocurrencies are a part of this solution — the part that made the solution thrilling, fascinating and helped it to roll over the world.

If you take away all the noise around cryptocurrencies and reduce it to a simple definition, you find it to be just limited entries in a database no one can change without fulfilling specific conditions. This may seem ordinary, but, believe it or not: this is exactly how you can define a currency.

Take the money on your bank account: What is it more than entries in a database that can only be changed under specific conditions? You can even take physical coins and notes: What are they else than limited entries in a public physical database that can only be changed if you match the condition than you physically own the coins and notes? Money is all about a verified entry in some kind of database of accounts, balances, and transactions.

So, to give a proper definition — Cryptocurrency is an internet-based medium of exchange which uses cryptographical functions to conduct financial transactions. Cryptocurrencies leverage blockchain technology to gain decentralization, transparency, and immutability. A cryptocurrency like Bitcoin consists of a network of peers. Every peer has a record of the complete history of all transactions and thus of the balance of every account. After signed, a transaction is broadcasted in the network, sent from one peer to every other peer.

This is basic p2p-technology. The transaction is known almost immediately by the whole network. But only after a specific amount of time it gets confirmed. Confirmation is a critical concept in cryptocurrencies. You could say that cryptocurrencies are all about confirmation. As long as a transaction is unconfirmed, it is pending and can be forged. When a transaction is confirmed, it is set in stone.

Only miners can confirm transactions. This is their job in a cryptocurrency-network. They take transactions, stamp them as legit and spread them in the network. After a transaction is confirmed by a miner, every node has to add it to its database. It has become part of the blockchain. For this job, the miners get rewarded with a token of the cryptocurrency, for example with Bitcoins.

Principally everybody can be a miner. Since a decentralized network has no authority to delegate this task, a cryptocurrency needs some kind of mechanism to prevent one ruling party from abusing it. Imagine someone creates thousands of peers and spreads forged transactions. The system would break immediately. So, Satoshi set the rule that the miners need to invest some work of their computers to qualify for this task.

In fact, they have to find a hash — a product of a cryptographic function — that connects the new block with its predecessor. This is called the Proof-of-Work. After finding a solution, a miner can build a block and add it to the blockchain.

As an incentive, he has the right to add a so-called coinbase transaction that gives him a specific number of Bitcoins. This is the only way to create valid Bitcoins. This is part of the consensus no peer in the network can break. If you really think about it, Bitcoin, as a decentralized network of peers that keep a consensus about accounts and balances, is more a currency than the numbers you see in your bank account.

Basically, cryptocurrencies are entries about token in decentralized consensus-databases. Cryptocurrencies are built on cryptography. They are not secured by people or by trust, but by math. It is more probable that an asteroid falls on your house than that a bitcoin address is compromised. Describing the properties of cryptocurrencies we need to separate between transactional and monetary properties.

While most cryptocurrencies share a common set of properties, they are not carved in stone. By nobody. And nobody means nobody. Not you, not your bank, not the president of the United States, not Satoshi, not your miner. If you send money, you send it. No one can help you, if you sent your funds to a scammer or if a hacker stole them from your computer. There is no safety net. You receive Bitcoins on so-called addresses, which are randomly seeming chains of around 30 characters.

While it is usually possible to analyze the transaction flow, it is not necessarily possible to connect the real-world identity of users with those addresses. Since they happen in a global network of computers they are completely indifferent of your physical location.

Only the owner of the private key can send cryptocurrency. Strong cryptography and the magic of big numbers make it impossible to break this scheme. A Bitcoin address is more secure than Fort Knox. After you installed it, you can receive and send Bitcoins or other cryptocurrencies. No one can prevent you. There is no gatekeeper. In Bitcoin, the supply decreases in time and will reach its final number sometime around the year All cryptocurrencies control the supply of the token by a schedule written in the code.

This means the monetary supply of a cryptocurrency in every given moment in the future can roughly be calculated today. There is no surprise. To understand the revolutionary impact of cryptocurrencies you need to consider both properties. Bitcoin as a permissionless, irreversible, and pseudonymous means of payment is an attack on the control of banks and governments over the monetary transactions of their citizens.

As money with a limited, controlled supply that is not changeable by a government, a bank or any other central institution, cryptocurrencies attack the scope of the monetary policy. They take away the control central banks take on inflation or deflation by manipulating the monetary supply. Sometimes it feels more like religion than technology. Cryptocurrencies are digital gold. Sound money that is secure from political influence.

Money promises to preserve and increase its value over time. Cryptocurrencies are also a fast and comfortable means of payment with a worldwide scope, and they are private and anonymous enough to serve as a means of payment for black markets and any other outlawed economic activity. But while cryptocurrencies are more used for payment, its use as a means of speculation and a store of value dwarfs the payment aspects.

Cryptocurrencies gave birth to an incredibly dynamic, fast-growing market for investors and speculators. Exchanges like Okcoin, Poloniex or shapeshift enable the trade of hundreds of cryptocurrencies. Their daily trade volume exceeds that of major European stock exchanges. In this rich ecosystem of coins and token, you experience extreme volatility.

JOELMIR BETTING PALMEIRAS

Now good friends who meet up mostly at conferences and workshops, they had greeted each other the day before in the hotel lobby with a fervent embrace, like summer campers back for another year, before quick-walking to a quiet corner to start in on the incentive-structure-for-proof-of-stake-validation talk.

Whenever and wherever Buterin and Zamfir convene, people gather around—eavesdropping, hoping for scraps of insight. The two are used to this and pay little heed. There were no secrets, only problems and solutions, and the satisfaction that comes from proceeding from one toward the other. This was a significant claim, since the fund had made him a billionaire. As the year wore on, that dream faded. The surge in the price of bitcoin, and of other cryptocurrencies, which proliferated amid a craze for initial coin offerings I.

It seemed as if language had been randomized. The dizzying run-up in crypto prices in was followed, this year, by a long, lurching retreat that, as the summer gave way to fall, began to seem perilous. As with notorious stock-market and real-estate bubbles, innocents had been taken in and cleaned out.

But both boom and bust reflected an ongoing argument over what cryptocurrencies and their technological underpinnings might be worth—which is to say, whether they are, as some like to ask, real. Is crypto the future or a fad?

Golden ticket or Ponzi scheme? Amazon 2. And what is it good for, anyway? It sure is neat, but for now it lacks its killer app, a use that might lead to mass adoption, as e-mail did for the Internet. Now and then, legacy titans voiced their scorn. Jamie Dimon, the chief executive of J.

They had faith that a new order was nigh. They pumped but did not dump. Among a certain subset, it was both fashionable and integral to ignore the fluctuations in price. The idea was to build and shore up a new system—for everything from payments and banking to health care and identity—that was either a replacement for the old one, or at least an alternative to it, one that was borderless, independent of state control and of exploitation by Big Tech.

While the old armature rots, a new one rises alongside it, much as the new Tappan Zee Bridge, over the Hudson, gradually took shape next to the rusty old one it would one day replace. To Buterin, however, the benefits were already clear. As we spoke, on the first afternoon of the Montreal conference the crypto life is a never-ending enchainment of conferences, and is pretty much wall-to-wall dudes , he aligned some items in front of him: pens, Post-its, phone.

He has a dry sense of humor. He often wears T-shirts with unicorns and rainbows. He likes to cite Lambos—as in Lamborghini, the cryptobro trophy ride of choice—as shorthand for the excessive trappings of wealth, which do not interest him.

Although he sold a quarter of his bitcoin and ether well before the prices began to soar last year, he is said to be worth somewhere in the vicinity of a hundred million dollars. He recently gave away a couple of million dollars to a life-extension research project. He has no assistants or entourage. He owns little and travels light.

You can go on fifteen-kilometre walks with it. He especially likes East Asia. He speaks fluent Mandarin. After Montreal, he was headed to Berlin and then Switzerland. His home, really, is the Internet. Base of operations. The more you invent your own life style, the more you realize that the categories that have been invented are ultimately, at best, imperfect devices for understanding the world, and, at worst, fake.

In January, I reached out to his father, Dmitry, who reported back that Vitalik was not interested in an interview. He wants the community to be more resilient. He studied computer science in Moscow and then started a financial-software business, before emigrating to Canada, when Vitalik was six. Vitalik, when he was three, got an old PC and began fiddling around with Excel. By ten or eleven, he was developing video games. His mind was always racing. It was hard for him to communicate.

He hardly spoke until he was nine or ten. I was concerned, but at some point I realized it is what it is. I just gave him my love. He also gave Vitalik his first glimpse of Bitcoin. It was , somewhat early, but Dmitry was an avowed anarcho-capitalist, a cynical child of Soviet and post-Soviet Russia. For many others like him, especially in those early days, the first encounter with Bitcoin was like a religious epiphany—powerful, life-altering, a glimpse of an entirely different and perhaps more agreeable way of ordering human affairs.

He had already been nursing some inchoate ideas about the risks and intrinsic unfairness of centralized systems and authority. And I assumed that people in those institutions were kind of like Mr. How can I screw a thousand people over this time? But in many ways what drew him in was the elegance of the system, invented, it seemed, by a rogue outsider out of thin air.

It suited a world view, a dream of a fluid, borderless, decentralized financial system beyond the reach of governments and banks, inclined as they inevitably are toward corruption and self-dealing, or at least toward distortions of incentive. In the eighties, cryptographers and computer scientists began trying to devise a foolproof form of digital money, and a way to execute transactions and contracts without the involvement or rent-seeking of third parties.

It was the man, woman, or group of humans known as Satoshi Nakamoto who, with Bitcoin in , solved the crux—the so-called double-spend problem. This requires some mechanism for keeping track of what you have, whom you gave it to, and how much they now have.

And that was the blockchain. Definitions of blockchain are as various as the metaphors—bingo, Google Docs, a giant room of transparent safes—that people use to try to illustrate them. Broadly speaking, a blockchain is an evolving record of all transactions that is maintained, simultaneously and in common, by every computer in the network of that blockchain, be it Ethereum, Bitcoin, or Monero.

Think, as some have suggested, of a dusty leather-bound ledger in a Dickensian counting house, a record of every transaction relevant to that practice. Except that every accountant in London, and in Calcutta, has the same ledger, and when one adds a line to his own the addition appears in all of them. Once a transaction is affirmed, it will—theoretically, anyway—be in the ledger forever, unalterable and unerasable.

Historically, records have been stored in one place—a temple, a courthouse, a server—and kept by whoever presided. With blockchains, the records, under a kind of cryptographic seal, are distributed to all and belong to no one. There is no Undo button. Each new block in the chain contains all the information or, really, via the hash, a secure reference to all the information contained in the previous one, all the way back to the first one, the so-called genesis block.

There are other words that are sometimes included in the definition of blockchain, but they are slippery, and grounds for endless parsing, asterisking, and debate. Every transaction is there in the ledger for all to see. It is, fundamentally, anonymous or pseudonymous, anyway , but there are many ways for that anonymity to be compromised.

The odds are high that someone, somewhere, has attempted to make an explanation like this one to you. The chain-splainer is a notorious date spoiler and cocktail-party pariah. You should have known better than to ask about mining. Mining is a reward system—compensation for helping to maintain and build a blockchain. During this ritual, the computers in the network are competing, via brute guesswork, to be the first to get the answer to a really difficult math problem.

The more computational power you have, the more guesses you can make, and the more likely you are to get the answer. The winner creates a new block and gets a reward, in, say, bitcoin—new bitcoin, which has not previously been in circulation. Satoshi ordained that there be a finite number of bitcoin ever created—twenty-one million—so that no one could inflate away the value of existing bitcoin, as, say, the Federal Reserve does with dollars.

This system is known as Proof of Work. The problem-solving exercise is proof that the computers are doing the work. This approach has serious and, some would say, fatal, flaws. First, it requires a tremendous amount of electricity. This year, it is said, the Bitcoin network will use as much energy as the nation of Austria, and produce as much carbon dioxide as a million transatlantic flights.

Mining rigs—computers designed specifically to do this work—are thirsty machines. There are open-air warehouses in remote corners of sub-Arctic Canada, Russia, and China, with machines whirring away on the tundra, creating magic money, while the permafrost melts. Second, a small number of mining conglomerates, or pools—many of them Chinese—have wielded outsized influence over the network and the decisions that get made. Last month, one of the biggest of these, Bitmain, confirmed plans to go public.

In this scenario, the holders of the currency in question become the validators, who typically take a small cut of every approved transaction. Theoretically, the more crypto you have, the more influence you have, so PoW partisans consider PoS to be plutocratic as well—a new gloss on the old problem of too much in the hands of too few. Buterin had a knack for explaining things—at least to an audience already primed to understand. But, as he travelled around the world to Bitcoin meet-ups, he began to think that the technology was limited, that attempts to jury-rig non-money uses for this digital-money platform was the computational equivalent of a Swiss Army knife.

You basically had to devise hacks. He envisaged a one-blade-fits-all version, a blockchain platform that was broader and more adaptable to a wider array of uses and applications. The concept behind Bitcoin—a network of machines all over the world—seemed to be a building block upon which to construct a global computer capable of all kinds of activities.

This is a means of setting and enforcing the terms of an agreement without a middleman—no lawyer, notary, bookie, or referee. This could cover a simple exchange of digital money, or the sale of a house, or an insurance payout, or a bet. The reliability of the code, and of the system for checking it, would discharge humans from having to read minds and look into hearts, or from having to pay someone else to make up for the fact that they cannot.

As it stands, here in the dusty old legacy economy, we have to pay other people, and squander time and resources, to establish a modicum of trust. A favorite example is title insurance; an entire industry exists to prove that the person selling you a house is the owner in good standing. Provenance—of property, both real and intellectual—is big business, but, to the blockchain believers, it need not be.

Code shall banish the odious frictions and costs. Another thing we presently outsource, perhaps to our peril, is our identity: the affirmation of who we are, along with whatever data sticks to that. Identity as we know it now is typically maintained by a centralized state—by the taxman, the department of motor vehicles, the police. Then it spills out into the world, often without our knowledge or consent, through our transaction histories, browsing habits, and unencrypted communications.

In the Google era, we spray aspects of ourselves all over the Internet. The Ethereum network maintains the attestation. Then there are those vast realms where the old intermediaries hardly exist at all. We may find it harder to see the utility here in our daily lives, where we can rely on Citibank, Visa, Venmo, and Western Union to handle our transactions and keep track of all the money flying around.

Amid such a sturdy if extractive system, the blockchain can seem like a back-office fix, a change in the accounting scheme, of interest to the systems geeks and bean counters but not to oblivious customers. But if you are, say, a Venezuelan citizen or a Turkish journalist, or a refugee from Syria or Myanmar, the prospect of being able to maintain and render portable both money and identity could be hugely liberating, perhaps even life-saving. Unless you forget your private key. In November, , Buterin wrote up a white paper—cryptoland is a blizzard of white papers—proposing a new open-source, distributed computing platform upon which you could build all kinds of smart-contract applications and uses, as well as other coins.

He called it Ethereum. Instead, everyone who read it seemed to be impressed by its elegance and ambition. The foundational gathering, in the Ethereum creation story, occurred at the North American Bitcoin Conference in Miami, in January, They defined themselves as founders. Di Iorio had invited a fellow Toronto Bitcoiner named Joseph Lubin, then forty-nine, who, with a sense of the import of the occasion, brought along the reporter Morgen Peck, to bear witness.

The founders assumed different roles. Lubin, who had Wall Street experience, was the chief operating officer. Lubin positioned himself as the grownup in the room, the worldly chaperon. Months of work ensued, in which the founders came up with a lexicon and a conceptual framework both to define Ethereum in lay ish terms and to inoculate it against possible legal consequences. When the idea arose to sell new cryptocoins to the public, to raise money for the project, Lubin, along with Hoskinson, recognized that this might be a fraught enterprise.

It was an exercise in semiotics with vital legal implications. And it seems to have worked. We seem to have created a reality. Should it be a for-profit entity funded by an I. Different groups among the eight founders staked out different positions, with some favoring for-profit, others not-for-profit.

Eventually, the founders agreed to let Buterin decide. Six months after Miami, the whole team holed up in a house in Switzerland, in the canton of Zug, an old commodities-hedge-fund tax haven now known as Crypto Valley. This was the first time all of the founders were in one room together. Buterin, after some time alone on the patio, told Hoskinson and another founder that they were out.

Later, he made clear that Ethereum would proceed as a nonprofit. Ethereum itself is based nowhere, and in traditional corporate terms is as substantial as the ether. And so the founders, driven by discord and the appeal of more lucrative endeavors, decentralized themselves. What would a world reconstituted by smart contracts look like? One grasps at legacy tableaux: office towers emptied of bankers, lawyers, and accountants; crypto-utopian settlements on hurricane-ravaged Caribbean islands; open-air barns out on the steppes, stacked with bitcoin-mining computers.

Here was blockchain as life style. Two big bathrooms, side by side, started out unisex, but by the afternoon of the first day the conference attendees, at the urging of no centralized authority, were self-sorting: men to the one on the right, women the one on the left. On the main stage, a roster of luminaries and evangelists served up a steady diet of jargon stew, but elsewhere in the old factory you could find spoonfuls of sugar—use cases for English majors.

And here it was, a month later, as sashimi, its provenance indisputable, trusted, immutable, thanks to the blockchain. Everyone surged forward for a free taste—plate-to-mouth still requiring humans to jostle and reach. There was a panel discussion with the founders of Civil, an attempt to use the blockchain to remake the journalism business, amid the wreckage wrought by the Internet and the demise of the advertising model.

And, in a small brick outbuilding, there was a demonstration of something called Cellarius, which was, according to its founder, Igor Lilic, 1 a crowdsourced sci-fi story, set in the year , after the activation of an artificial super-intelligence; 2 a community of artists and collaborators; and 3 a technological platform that its developers were gradually building out. The host of the conference was ConsenSys, a company that Lubin started, in Brooklyn, in , after he left Ethereum.

ConsenSys is an incubator of new businesses and projects that operate—or will, or would—on the Ethereum blockchain. Why is it like this? They can cite dozens of projects in various stages of emergence; none has morphed into a killer DApp. Lubin is said to be the largest holder of ether and is estimated to be worth more than a billion dollars.

Prices are not usually quoted in units of bitcoin and many trades involve one, or sometimes two, conversions into conventional currencies. In and bitcoin's acceptance among major online retailers included only three of the top U. Bitcoin is "not actually usable" for retail transactions because of high costs and the inability to process chargebacks , according to Nicholas Weaver, a researcher quoted by Bloomberg.

High price volatility and transaction fees make paying for small retail purchases with bitcoin impractical, according to economist Kim Grauer. Bitcoin started to be accepted also for real estate payments in late The first recorded sale of a house in exchange for bitcoin happened in September , when Texas based Kuper Sotheby's International Realty brokered the deal using bitpay.

Two months later, a first recorded sale of apartment in the world and first real estate property in Europe was sold for bitcoin in November in the Czech republic. The Czech real estate agency HOME Hunters brokered a deal of a 3-room apartment for a Russian buyer without using a payment service providers at all. Some U. Merchants accepting bitcoin, such as Dish Network, use the services of bitcoin payment service providers such as BitPay or Coinbase.

When a customer pays in bitcoin, the payment service provider accepts the bitcoin on behalf of the merchant, directly converts it, and sends the obtained amount to merchant's bank account, charging a fee of less than 1 percent for the service. Due to the design of bitcoin, all retail figures are only estimates.

Bitcoin companies have had difficulty opening traditional bank accounts because lenders have been leery of bitcoin's links to illicit activity. The request was motivated by oil company's goal to pay its suppliers. Some Argentinians have bought bitcoins to protect their savings against high inflation or the possibility that governments could confiscate savings accounts.

Other methods of investment are bitcoin funds. The first regulated bitcoin fund was established in Jersey in July and approved by the Jersey Financial Services Commission. Forbes named bitcoin the best investment of To improve access to price information and increase transparency, on 30 April Bloomberg LP announced plans to list prices from bitcoin companies Kraken and Coinbase on its , subscription financial data terminals.

The number of bitcoin millionaires is uncertain as people can have more than one wallet. Bitcoin is useful for crowdfunding. He was shown by local TV company with a broadsheet "Hi mom, send bitcoins". The decentralization of money offered by virtual currencies like bitcoin has its theoretical roots in the Austrian school of economics , [] especially with Friedrich von Hayek in his book Denationalisation of Money: The Argument Refined , in which he advocates a complete free market in the production, distribution and management of money to end the monopoly of central banks.

Bitcoin appeals to tech-savvy libertarians , because it so far exists outside the institutional banking system and the control of governments. Bitcoin's appeal reaches from left wing critics, "who perceive the state and banking sector as representing the same elite interests, [ From Wikipedia, the free encyclopedia. For broader coverage of this topic, see Bitcoin. This article's lead section may not adequately summarize its contents. To comply with Wikipedia's lead section guidelines , please consider modifying the lead to provide an accessible overview of the article's key points in such a way that it can stand on its own as a concise version of the article.

September Further information: cryptocurrency crash. This section needs to be updated. Please update this article to reflect recent events or newly available information. Price of bitcoin, [b] logarithmic scale. Annual volatility of bitcoin [38]. Further information: Cryptocurrency bubble.

In securities , the analogical form has been described as book entry , paperless , digital , electronic , uncertificated or dematerialized. Retrieved 3 May Retrieved 28 April The Economist. The Economist Newspaper Limited. Retrieved 21 October Mercatus Center. George Mason University. Retrieved 22 October The New York Times. Retrieved 6 May A type of digital cash, bitcoins were invented in and can be sent directly to anyone, anywhere in the world.

Daily Tech. Archived from the original on 20 January Retrieved 30 September The New Yorker. Retrieved 22 December Standards vary, but there seems to be a consensus forming around Bitcoin, capitalized, for the system, the software, and the network it runs on, and bitcoin, lowercase, for the currency itself. The Guardian. Retrieved 8 July USA Today. Retrieved 25 May Retrieved 13 January Money from nothing. Chronic deflation may keep Bitcoin from displacing its rivals".

Retrieved 25 March Retrieved 3 January Bloomberg L. Retrieved 31 December Retrieved 8 August Financial Crimes Enforcement Network. Retrieved 1 June Sars is coming for you". Business Insider. Retrieved 22 May Library of Congress. June Retrieved 14 August Retrieved 11 April The central bank will keep watching risks from Bitcoin, which is fundamentally not a currency but an investment target, Sheng Songcheng, head of the monetary authority's statistics department, told reporters in Beijing on Jan.

Bloomberg View. Bloomberg LP. A principal knock on bitcoins has been the claim that they are inherently insecure. The principal defense has been that they are as secure as "real" currency. The Wall Street Journal. Retrieved 27 January February Retrieved 3 June Retrieved 28 August Cambridge University. Retrieved 14 April Business Wire. Retrieved 5 November Retrieved 4 February Retrieved 31 October Consumer Financial Protection Bureau.

August Retrieved 10 July Bitcoin Magazine. Retrieved 15 December Archived from the original on 3 November Retrieved 2 November Retrieved 24 October Retrieved 13 October Boston University. Retrieved 11 November Social Science Research Network. There is no price stabilization mechanism. Retrieved 7 January Retrieved 15 November Casey 30 April Retrieved 23 March It's 'the Harlem Shake of currency ' ".

Retrieved 2 May The Washington Post. Retrieved 10 January Archived from the original on 7 February Journal of Monetary Economics. New York Times. Archived from the original on 16 January Retrieved 16 January Archived from the original on 18 January Retrieved 18 January Bank of Canada Staff Working Paper. Retrieved 20 April Retrieved 22 April Electronic Commerce Research and Applications. Here's what Warren Buffett is saying". Archived from the original on 13 January Globe and Mail.

Bloomberg News. Archived from the original on 9 June South China Morning Post. Archived from the original on 10 June Archived from the original on 24 October Robert Shiller on Bitcoin". Yale Insights. Yale School of Management. Archived from the original on 29 November The National Interest. Archived from the original on 22 October Archived from the original on 15 January Archived from the original on 12 June Archived from the original on 4 June ECO Portuguese Economy. Yahoo Finance. Project Syndicate.

Archived from the original on 29 December Archived from the original on 4 April Knowledge Wharton. Archived from the original on 8 June Dialogue with the Fed. Federal Reserve Bank of St. Archived PDF from the original on 9 April The Financial Times. Archived from the original on 30 September Archived from the original on 20 March Intelligence Squared.

Archived from the original on 28 April Market Watch. Archived from the original on 20 May Archived from the original on 25 June Institute for New Economic Thinking. The Motley Fool. Archived from the original on 7 January Archived from the original on 19 December New York Post.

News Corp. Archived from the original on 21 December Meredith Corporation. Retrieved 15 April Retrieved 5 October Retrieved 2 July The Daily Dot. Retrieved 23 May Retrieved 1 April World Bank Group. Retrieved 30 October Federal Council Switzerland.

Swiss Confederation. Retrieved 28 November Retrieved 23 September City A. Retrieved 6 November Retrieved 26 February Hanke 18 September Huffington Post. Retrieved 21 November Retrieved 4 December Future Finance.