AbstractEpistemic exhaustion is cognitive fatigue generated by efforts to determine, retain, or communicate what one believes under conditions that make doing so especially taxing. I argue that the creation and maintenance of epistemic exhaustion is a tool that the socially and politically powerful can and do use in order to retain power. I consider a variety of conversational tactics and three circumstances—partisan polarization, epistemic chaos, and epistemic oppression—that can leave people prone to epistemic exhaustion. I survey several common responses to epistemic exhaustion and offer some suggestions for how we ought to respond to epistemically exhausting circumstances.