Noam Tiran

People tend to think of our intellectual characters as at least partially malleable. We can become more – or less – virtuous or vicious epistemic agents. However, people also tend to think of characterological change as typically slow and incremental. I use recent empirical work on the effects of psychedelic experiences on personality to argue that such circumscribed experiences may be epistemically transformative, for better or worse. We have good, if tentative reasons to believe that psychedelics can alter their user's character traits in ways that may lead her to become a more (or less) virtuous epistemic agent after as little as one or two trips. This, in turn, means that even if psychedelics do not drastically alter our stock of, say, true or justified beliefs, they can still drastically change our epistemic standing. Since, plausibly, the value (or disvalue) of epistemic traits is not exhausted by their capacity to assist or hinder the attainment of the ends of inquiry, psychedelic experiences are epistemically valuable (or disvaluable) in ways hitherto little explored by philosophers of psychedelics.