Conditional Reality

A few years ago we went to see J. S. G. Boggs give a talk on the topic of money. Boggs, an artist with strong technical skills and an urge to question the meaning of value, draws money, then attempts to spend the drawings for goods and services. During his talk he drew some bills and then we all went with him to a nearby pizza place where he bought pies with the fake money and even persuaded the manager to give real change in return. It was a marvelous demonstration. The money was fake, but the pizza was real.