Psychology must be based on direct experience and introspection.

Why does a person own a dog?”“For security, I guess...For the security of knowing that there's at least one creature in the world who likes you.

We don’t start with models. We start with data. We don’t have any preconceived notions. We look for things that can be replicated thousands of times. A trouble with convergence trading is that you don’t have a time scale. You say that eventually things will come together.Well， when is eventually？