Colin Camerer

It's like simulating earthquakes: we can over and over study a bubble, crash, bubble, crash. Then we can see mathematically if there's some regular pattern and what's going on in people's brains when prices are going up and before the crash is happening.

We see that hyperactivity and reward areas are important when the bubble's rising. People getting caught up in it. We also see areas involving mentalizing, which means thinking about other people: Who's buying? Who's selling? Do they know something? We see emotional areas before the crash that indicate a sense of uncertainty or dread.

Game theory is a branch of, originally, applied mathematics, used mostly in economics and political science, a little bit in biology, that gives us a mathematical taxonomy of social life, and it predicts what people are likely to do and believe others will do in cases where everyone's actions affect everyone else.