After this commercial break, i truly believe in the power of theraby. It has been very, very useful, helpful, essential to me in my own life. And one of the things, i don't know people talk about this a lot, is that you really need to find the therapist who sinks up with you and lets you proceed through that long arc of figuring out what it is that's going on. After the break, robert burton will tell us all about the arguments he made based on evidence, based on his experts, in his book on being certain. Ideas like conclusions are not conscious choices, and certainty not even a thought process certainty and similar states of knowing.