In this episode, we sit down with neurologist Robert Burton, author of On Being Certain, a book that fundamentally changed the way I think about what a belief actually is. That’s because the book posits conclusions are not conscious choices, and certainty is not even a thought process. Certainty and similar states of “knowing,” as he puts it, are "sensations that feel like thoughts, but arise out of involuntary brain mechanisms that function independently of reason."