Humans have a remarkable ability to know and not know at the same time. Or, more correctly, they can know something when they really think about it, but most of the time they don’t think about it, so they don’t know it. If you really focus, you realize that money is fiction. But you usually don’t think about it. If you are asked about it, you know that soccer is a human invention. But in the heat of a match, nobody asks about it.
