Has to be multicurrency to be useful
Because many things can be currencies in different contexts. E.G. air miles, my supermarket's points, the balance I have with my local LETS, prepaid credits I have with Oyster or on my PAYG phone. And if physical cash is insecure, having to manage many physical kinds of cash in my wallet is worse. Pushing the idea that the whole world transacts using a single currency suits those interested in preventing competition so the usual suspects can get their rake offs.
Biting the hand that feeds IT
