In the 1950s a group quit their jobs and gave away their possessions to await a flying saucer that never came, then doubled down and started recruiting. This episode uses that story to introduce Leon Festinger's theory of cognitive dissonance: the involuntary distress that arises when a core belief collides with an action or an undeniable fact. The hosts distinguish it from hypocrisy, explain the two variables that set its magnitude, and walk through the four escape routes, from changing behavior to simply denying the facts.

The classic experiments follow: the 1959 peg-turning study where students paid one dollar convinced themselves a boring task was fun, the forbidden toy paradigm with mild versus severe threats, the free choice paradigm with appliance ratings, and the effort justification study with an embarrassing initiation. Modern exa ...