What is a conspiracy theory other than the intuition that some powerful force is out there plotting to sabotage you… or save you? The psychological craving for big events (and big feelings) to have equally big causes is instinctive. It’s called proportionality bias—and while behavioral economists regard this inclination as the driving force behind extreme conspiracy theories like QAnon, it fools even the most rational minds into overestimating cause-and-effect relationships.