The article is idiotic and disingenuous. Paper money didn't attempt to replace coin in one fell swoop. Paper money evolved from letters of credit which make per

The article is idiotic and disingenuous. Paper money didn't attempt to replace coin in one fell swoop. Paper money evolved from letters of credit which make perfect sense, and bitcoin fundamentally relies on similar concepts anyway. You can't buy something online by just anonymously transmitting credits into an account -- who gave us the money? what do they want? You fill in an order form, a bunch of stuff happens, you get a receipt and a product and money gets transferred at some point. Very little of that is the currency transaction. You needed to generate a letter that said I want X and I'll pay you Y, then you paid Y and sent confirmation of the money transfer, and so on. The bitcoin bulls think that Credit Cards are a terrible way to buy things because they charge too much for what they do (and their security sucks). This may be true, but bitcoin is only solving the easiest part of the problem. Banks can already transfer money around cheaply and securely. Indeed even market transactions are so fast and inexpensive that high speed trading is now a huge economic force. The fact is that credit cards (a) let you buy stuff on credit, (b) provide transactional support allowing commerce to proceed smoothly, and (c) already work. A credit card is merely automated checking with overdrafts, which is a direct descendant of the letter of credit (from which cash evolved), which is in fact a more fundamental method of trading than barter. (Tracking people's accounts is the reason writing was invented.)