Rational Fanaticism

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.

Example: “When she said she loved her dog, he asked for a rational justification—rational fanaticism, unable to accept that some truths are lived, not argued.”

Rational Fundamentalism

A rigid, literalist adherence to a specific model of rationality (e.g., Bayesian updating, rational choice theory) as the only legitimate way to form beliefs or make decisions. The rational fundamentalist treats deviations as errors rather than context‑appropriate adaptations, and they often hold that all people, regardless of culture or circumstance, should reason exactly the same way. They treat their model as a sacred text, ignoring critiques from bounded rationality, embodied cognition, or cross‑cultural psychology.

Example: “He insisted that the ‘rational actor’ model explained all human behavior—rational fundamentalism, ignoring decades of evidence that people don’t actually reason that way.”

Rational Fanaticism by Dumu The Void April 18, 2026

Rational Fanaticism

A zealous, intolerant belief in the power of “pure reason” to solve all problems, combined with contempt for emotion, intuition, tradition, and embodiment. Rational fanatics see themselves as the vanguard of rationality and everyone else as slaves to bias. They advocate for rational decision‑making in every domain (love, art, politics) and dismiss any outcome that violates their calculations as irrational. Their fanaticism leads them to override human needs (e.g., insisting on “optimal” policies that cause suffering), because they believe the rational solution must be correct regardless of real‑world consequences. It’s rationality as religion.

Example: “He argued that grief counseling was inefficient and should be replaced by a decision tree—rational fanaticism, sacrificing compassion on the altar of abstract reason.”

Rational Fanaticism by Abzugal May 2, 2026