Superrationality

The concept of superrationality (or renormalized rationality) was coined by Douglas Hofstadter, in his article series and book Metamagical Themas. Superrationality is a type of rational decision making which is different than the usual game-theoretic one, since a superrational player playing against a superrational opponent in a prisoner's dilemma will cooperate while a game-theoretically rational player will defect. Superrationality is not a mainstream model within game theory.