CRYPTOCURRENCIES promised a revolution. According to their many libertarian supporters, the creation of these currencies by blockchain technology would end the tyranny of the state in monetary affairs.
In future, as computers and mobile phones became barely distinguishable, people would be able to make all their payments over these personal devices. They would give instructions that amounts of the various tokens — bitcoin, ethereum, tether, polkadot, troin or whatever — be transferred between different accounts in blockchain records. The transfers would have just
