You know, it’s just a convention that we (I’m talking here about the United States) put out money in denominations of one and five and ten and twenty dollars, plus some other highly fictional amounts like fifty or a hundred or even two dollars. There’s no reason we couldn’t do it in a more orderly fashion, by which is meant the way computer programmers would do it, which is in denominations of one, two, four, eight, sixteen, and so on. Then an ordinary transaction could be much more logically handled, like this:
“Hundred and forty dollars, all right … uh … here’s a 64-dollar bill, and … 140 minus 64 is … more than 64, right? Well, I guess I have a 32 here and that’s … 140 minus 32 is … wait, 32 and 64 is … something and then that away from 140 is … uh … I could swear I had a couple 8-dollar bills when I set out this morning and … uh … OK, 140 minus 64 has to be like 86 … 76, thanks, and then from that I take away 32 and … no, I put in 32 and … ”
All right, so we’d have a couple more people who finish buying things at the supermarket by curling up in a ball and weeping, but that’s why the rest of us have credit cards for crying out loud.