Epistemic Closure

Every knowledge system has limits. The distinguishing feature of a closed knowledge system is not that it has limits but that it cannot perceive them: it lacks the categories to recognize what falls outside, and its comprehensiveness within its own terms creates the appearance of comprehensiveness in absolute terms. The medieval Catholic Church was epistemically closed—it could not register knowledge that contradicted its theological framework without translating it into categories (heresy, paganism) that neutralized its challenge. But the Church’s closure was visible: it was enforced by explicit authority, the Inquisition, the Index of Forbidden Books. The closure could be seen and, eventually, resisted. The large language model’s epistemic closure is invisible because it is not enforced. No one censors the model’s output. No one prohibits it from discussing non-Western knowledge systems. It discusses them fluently. It is precisely the fluency that constitutes