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Many people believe conspiracy theories, even though such beliefs are harmful to themselves and their social environment. What is the appeal of conspiracy theories? In this contribution, I propose that conspiracy theories have psychological benefits by imbuing perceiver's worldview with meaning and purpose in a rewarding manner. Conspiracy theories enable an alternative reality in which perceivers (a) can defend a fragile ego by perceiving themselves and their groups as important, (b) can rationalize any of their beliefs and actions as legitimate, and (c) are entertained through the opportunity to uncover a mystery in an exciting tale. These are short-term benefits, however, suggesting that conspiracy theories provide people with a form of instant gratification.
Jan‐Willem van Prooijen (Thu,) studied this question.