> Have rules and tracking mechanisms in place to prevent manipulation of the money supply. And most importantly a widespread currency can't have anonymity. I'm

> Have rules and tracking mechanisms in place to prevent manipulation of the money supply. And most importantly a widespread currency can't have anonymity. I'm not saying anonymity shouldn't be allowed in a currency. But widespread use of a currency requires being able to manually undo transactions that were done through fraud, the way banks and credit card companies can. This is why people tend to avoid making large payments in cash, they want a paper trail so it can be undone if necessary. Regular money has basically all these features, plus the advantage of enormous institutional support (laws, systems, finance sectors, central banks, markets...)