One of the most interesting parts about being human is this: The stuff you know you know, the stuff you don't know, the stuff you don't know you know, and the stuff you will never know. This is a tiny bit Donald Rumfeildian, I know, but the difference between the stuff you know and can talk about and the stuff you know and can't talk about is quite amazing.
Listen to this podcast. It will make you think! Thanks for making the podcast a hit. It is sure fun to go on this ride with you.