What is logic? Can something be true and false at the same time? Can we ever have perfect certainty? Those are some of the epistemological questions I asked the philosopher Dr. Timothy Williamson of Oxford University. We also dove into the metaphysics of concepts and mathematics - and here we had the greatest disagreement. Do concepts have any existence outside of our conception of them? He says yes, I say no, and the consequences are very large. Get full access to Steve Patterson's Substack at stevepatterson.substack.com/subscribe