I've listened to Christian's audio classes. It is darn cool! You travel through all realms of knowledge. It celebrates evidence, reasoning and science. A simple

I've listened to Christian's audio classes. It is darn cool! You travel through all realms of knowledge. It celebrates evidence, reasoning and science. A simple audiobook is more intellectually stimulating than the excellent Cosmos Series. Man, if I had billions of dollars these would be the kind of things I'd love to spend my money on.