Theory of Constructed Rationality

The insight that what counts as "rational" behavior is defined by cultural and historical context. Maximizing personal profit is "rational" in neoliberal economics. Sacrificing oneself for one's community is "rational" in a honor-based society. Rationality is not a universal calculator in the brain; it's a set of culturally constructed goals and acceptable means that we learn and perform.

Example: "My boss said turning down a promotion to care for my dad was 'irrational.' My family said it was the only honorable choice. The Theory of Constructed Rationality explains the clash: we were using different construction manuals. His manual defined rationality as individual career maximization. Mine defined it as fulfilling familial duty. Neither is 'natural'; both are learned scripts for sensible action."

Theory of Constructed Rationality by Abzu Land January 31, 2026

Theory of Constructed Rationality

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?'"

Theory of Constructed Rationality by Dumu The Void March 1, 2026