The project on the epistemology of authoritarianism aims to create a feedback loop between epistemology and the study of modern authoritarianism. The research involves, first, borrowing conceptual resources—such as epistemic injustice, normative contextualism, misinformation, and belief polarization—developed in social epistemology to better understand phenomena in authoritarian contexts; and second, reexamining and revising these concepts and theories from the perspective of modern authoritarianism. By bridging the gap between epistemology, ethics, and political philosophy, I hope to establish the project as a legitimate interdisciplinary study within epistemology.