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An obsessive, uncritical devotion to rational argumentation, where the fanatic demands that every aspect of life—love, grief, art, faith—be justified rationally. Rational fanatics cannot accept that some domains are not amenable to rational proof and become distressed or angry when others operate outside their framework. They often try to “rationally explain” away emotions, personal experiences, or cultural practices, causing social friction and personal isolation. Their fanaticism for reason is itself irrational, as it refuses to recognize reason’s limits.
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