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A logical fallacy where one dismisses an argument by attacking the opponent's intelligence, typically with variations of "you're stupid." The fallacy lies in treating IQ as a proxy for correctness, as if being less intelligent automatically makes someone wrong about a particular claim. "You're too dumb to understand" becomes a way of avoiding engagement, a preemptive dismissal that requires no evidence and addresses no substance. This fallacy is the lazy debater's favorite: rather than explain why a position is wrong, simply assert that only stupid people would hold it, thereby positioning oneself as intelligent without demonstrating any actual intelligence through reasoned argument.
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