(To anyone that will try to smear Pieter for some of the controversies he has caused I say: He died. He was not a perfect person. No one is. People fail. But his books do share a lot of food for thought. Work with his ideas and concepts by criticising them based on facts. That is totally fine with me. But decouple his ideas and concepts from your personal dislike of him as a person and discuss the ideas and concepts on the merits instead of simply dismissing them, deal?) 4/5