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Economist bitcoin luottaa kone


economist bitcoin luottaa kone

regulation, cryptocurrencies have instead become a focus for speculation. Technology Quarterly this week points out, there is no sensible way to reach any particular valuation. Putting a business on a blockchain is as complicated as any other big IT project. A decade later Amazon was booking revenues.1bn a year; America Online, an early internet-service provider, had more than 20m customers; and half of Americans had internet access. Even as some banks and governments explore the use of this new technology, others will surely fight. But it is worth bearing in mind that big IT projectswhich is what blockchains amount totend bitcoin nousu syystä to be cumbersome and slow even if they are undertaken by a single company. Many of these were also used for pirating music and films.

Economist bitcoin luottaa kone
economist bitcoin luottaa kone

Bitcoin and other cryptocurrencies are useless - The Economist



economist bitcoin luottaa kone

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Bitcoin has a bad reputation. Cash is pouring. Kennedys father, supposedly said that when he started getting share tips from his shoeshine boy, he knew it was time to sell. Bitcoin and most other cryptocurrencies are founded on the notion of an immutable ledger, called the blockchain, which comprises transfers of value from one party to another. Proponents believe these features can help solve all sorts of problems, from streamlining bank payments and guaranteeing the provenance of medicines to securing property rights and providing unforgeable identity documents for refugees.

The participants in a blockchain system collectively keep the ledger up to date: it can be amended only according to strict rules and by general agreement. Alex de Vries, a bitcoin specialist at PwC, estimates that the current global power consumption for the servers that run bitcoins software is a minimum.55 gigawatts (GW which amounts to energy consumption of 22 terawatt-hours (TWh) per yearalmost the same as Ireland. The most credible actors cite their compliance with regulations around finance, personal data and the like as a selling-point. Yet despite its dubious origins, peer-to-peer technology found legitimate uses, powering internet startups such as Skype (for telephony) and Spotify (for music streaming)and also, as it happens, bitcoin. As with Napster and peer-to-peer technology, a clever idea is being modified and improved. In essence, a blockchain is a database designed to be distributed among many users, to be immutable, to work without oversight from any central authority and to dispense with the need for its users to trust each other. The decentralised digital cryptocurrency, powered by a vast computer network, is notorious for the wild fluctuations in its value, the zeal of its supporters and its degenerate uses, such as extortion, buying drugs and hiring hitmen in the online bazaars of the dark net.


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