Holy sh*t. this is the most bias, opinionated POS I have ever read. It is completely "western" euro-centric culture perspective with a strong tinge of euro-supremacist leanings. It has a very condescending tone...just, whew! I was so hoping it would be a straight fact piece without an agenda, something new and enlightening. So sad, so many look to this work as a fact based history with insightful theories on homosapiens. It hurts my heart that black and brown people of the world will be subjected to people who walk around with these views of humanity. It is everything that is wrong with "experts" that relish spreading revisionist history and make millions off of this stuff.