Non so se è già passato altrove:

http://www.yukaichou.com/chou-musings/bitcoins-2013/

Eventually commodity based systems were replaced by the politically based systems, where the “good faith” of governments became the backing. In the twentieth century the US dollar replaced gold as the basis of all currencies. Everyone knew that the good faith (and power) of the American government backed the dollar – so it had to be like gold. In theory, it was the US Fiat currency that helped to supported other Fiat currencies.

But today the US dollar is more virtual than it has ever been. Most of an individual’s wealth is the form of electronic records stored in their accounts with various financial institutions. Many more transactions and simple purchases are made through electronic services than through the physical exchange of cash or coin. The virtual nature of money is ever increasing.

Cosa ne pensate di questo stralcio in particolare?