The first half seems like evidence-based science reporting and insightful. But just stop listening/reading when you get to the second half. A simplistic view of political systems is offered, which seems completely out of place and tacked on from some other author or theme. Two authors are credited, but I have no idea if that is the reason. The tone shifts markedly from evidence to political ethics. There are demonstrably false statements made, in support of political morality. “There’s no way to breed physical characteristics like height in humans; it’s just too complex!” I’ll add that I consider myself liberal, only as a point of reference for this review.