The story
From super- + rationality, coined by Douglas Hofstadter.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A kind of rational decision-making, different from the widely-accepted game-theoretical one. A player whose opponent is also superrational will cooperate in the prisoner's dilemma problem, whereas a game-theoretically rational player will defect. Full definition →
From super- + rationality, coined by Douglas Hofstadter.
Etymology from Wiktionary, CC BY-SA 4.0.