The social consequences of such an evolution deserve a more thorough discussion. But one anecdote emphasises the risks of leaving the public sector exposed to private payment systems. In 2010, two bitcoin enthusiasts agreed to exchange two large pizzas for the price of 10,000 bitcoins.
In a forum one of them wrote: ”I’ll pay 10,000 bitcoins for a couple of pizzas… like 13 3 / 14  BIS central bankers' speeches  maybe two large ones so I have some left over for the next day.” 13 At that time, 10,000 bitcoins were worth about € Today, 10,000 bitcoins are worth more than € million.