If I grow more food, I have more stuff. If I paint a painting, I do not have more stuff. Someone else might be more willing to trade my paint for more of their

If I grow more food, I have more stuff. If I paint a painting, I do not have more stuff. Someone else might be more willing to trade my paint for more of their stuff. But in an econonmy where there are only $20 for the paint, Picasso won't be getting a million no matter how hard he paints. The money simply isn't there! Reality is complicated, but if you're looking for a simple example of creating value in a "closed economy", art is not intuitively right