Beating the best Nash without regret

Nash equilibrium analysis has become the de facto solution standard in game theory. This approach, despite its prominent role, has been the subject of much criticism for being too optimistic. Indeed, in general games, natural play need not converge to Nash equilibria. In games with multiple equilibria, it is unclear how players are expected to coordinate; even in games with a unique equilibrium, finding it may involve unreasonable expectations on player communication or computation.