A fallacy where someone invokes "rationality" as a self-evident standard that their position meets and yours doesn't, without specifying what rationality means or why their view is more rational. "Be rational!" becomes a way of saying "agree with me." The appeal is fallacious when it treats rationality as a fixed, universal property rather than a contested concept with multiple definitions and traditions. Often used to dismiss emotional, intuitive, or experiential ways of knowing as "irrational."
Appeal to Rationality "I tried to explain why I made a decision based on intuition and values. Response: 'Just be rational about it.' Translation: decide my way. That's Appeal to Rationality—using the word as a cudgel, not a concept. Rationality isn't one thing, and your version isn't the only version."
by Dumu The Void February 28, 2026
Get the Appeal to Rationality mug.The claim that rationality is not a universal faculty but a constructed standard—built differently in different contexts, serving different purposes, reflecting different values. What counts as rational in science differs from what counts as rational in law, in ethics, in everyday life. What counted as rational in one era may seem irrational in another. Theory of Constructed Rationality doesn't abandon reason—it recognizes that reason is always reason-within-a-tradition, reason-for-a-purpose, reason-shaped-by-history. Rationality is constructed, and understanding its construction is part of using it well.
Theory of Constructed Rationality "You appeal to rationality as if it's neutral, universal. Theory of Constructed Rationality says: whose rationality? When? For what purpose? The rationality of a corporate boardroom differs from the rationality of an indigenous community. Both are rational; both are constructed. The question isn't 'is it rational?' but 'what kind of rationality, serving what ends, constructed by whom?'"
by Dumu The Void March 1, 2026
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The critical claim that certain groups, practices, or traditions are granted "rationality" while others are denied it—that rationality is distributed unevenly along lines of power. Western science is rational; indigenous knowledge is "belief." White men are rational; women and people of color are "emotional." The powerful are rational; the powerless are "irrational." Theory of Rational Privilege exposes how rationality functions as a gatekeeping concept, conferring authority on some while denying it to others. Rationality isn't just a standard—it's a weapon.
Theory of Rational Privilege "He's called 'passionate' when he argues; she's called 'hysterical.' That's Rational Privilege—rationality distributed by gender. His passion is reason; her passion is pathology. Rationality isn't just about thinking; it's about who gets to be seen as a thinker. Theory of Rational Privilege asks: who gets rationality, who doesn't, and what power does that serve?"
by Dumu The Void March 1, 2026
Get the Theory of Rational Privilege mug.The application of Critical Theory to rationality—examining how standards of rationality are constructed, how they shift across contexts, and how they're used to privilege some ways of thinking while marginalizing others. Critical Theory of Rationality asks: What counts as rational in different cultures, different eras, different domains? Who gets to be called rational? How has "rationality" been weaponized against dissent, against emotion, against alternative ways of knowing? It doesn't reject rationality but insists that rationality must be democratized, pluralized, and self-aware.
"He calls himself rational and everyone else emotional. Critical Theory of Rationality asks: rational by what standard? Whose rationality? The rationality of the boardroom differs from the rationality of the community. Treating your rationality as the only rationality is power, not logic. Critical theory insists on asking: who gets to be rational, and who decides?"
by Abzugal Nammugal Enkigal March 4, 2026
Get the Critical Theory of Rationality mug.A framework proposing that rationality—as a property of agents, beliefs, and actions—is elastic. Rational Elasticity suggests that what counts as rational can stretch across contexts without becoming irrational: a decision that's rational for you (given your goals, information, values) might not be rational for me, but both are within rationality's elastic range. The theory identifies the limits: when does stretching become irrationality? When does rational adaptation become rationalization? Understanding rationality requires understanding its stretch.
Theory of Rational Elasticity "To you, quitting your job was irrational; to me, it was the only sane choice. Rational Elasticity says we're both right—rationality stretches across different goals, different values, different contexts. The question isn't who's rational; it's whether we can stretch enough to see each other's reasons."
by Nammugal March 4, 2026
Get the Theory of Rational Elasticity mug.A bias that treats Western conceptions of rationality—instrumental reason, means-end calculation, cost-benefit analysis—as neutral, universal, and beyond critique. The Neutral and Impartial Rationality Bias ignores that rationality has been defined differently across cultures and historical periods, that the Enlightenment's rationality was shaped by particular social conditions, and that Western rationality has been used to justify colonialism, exploitation, and domination. It presents "rationality" as a pure standard, erasing its history and politics. Those with this bias don't see their rationality as one tradition; they see it as rationality itself. Everyone else is emotional, irrational, or pre-modern.
"Be rational," he said, meaning "calculate costs and benefits like a Western economist." Neutral and Impartial Rationality Bias: treating one form of reasoning as Reason itself. He didn't see that other rationalities exist—relational rationality, ecological rationality, spiritual rationality. His rationality was just rationality; everyone else needed to catch up."
by Dumu The Void March 8, 2026
Get the Neutral and Impartial Rationality Bias mug.A framework revealing how the very ideal of rationality can mislead—by excluding emotion, intuition, and embodiment from the realm of valid knowledge, by treating only certain kinds of reasoning as legitimate, and by ignoring the social and historical contexts that shape what counts as rational. Fooled by Rationality Theory shows how the pursuit of rationality can become irrational when it denies its own limits, when it dismisses other ways of knowing as inferior, when it mistakes its own perspective for the view from nowhere.
Fooled by Rationality Theory "He was so rational he couldn't see why his wife was upset. Fooled by Rationality: treating reason as the only valid response, ignoring emotion, intuition, relationship. His rationality made him irrational—blind to whole dimensions of human experience. The pursuit of reason became unreasonable."
by Dumu The Void March 8, 2026
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