The Origins of Money

Bartering is too difficult, and so we are now going to create sort of an avatar of our barter and ascribe value to that, and that's money. It needs to be rare enough that it's not everywhere. You don't want money that like rusts over time. So you need money that is easily divisible. The other option is that it wasn't money that was created first, but the idea of credit or a futures contract that were created first.