> Why can't we say that all human behavior is explained by game theory? We can. But game theory turns on the parameters of the payoff matrix, and those are "h

> Why can't we say that all human behavior is explained by game theory? We can. But game theory turns on the parameters of the payoff matrix, and those are "hidden variables" that are hard to measure. But they are constrained by ESS requirements, which is the thing that makes game-theory non-vacuous. It's analogous to saying that weather is explained by fluid dynamics.