Among the best books I’ve ever read. Certainly the most hopeful concerning the state and future of humanity. I’ll look at the history and progress of human beings based upon or a century of social science regarding anthropology and archaeology. I can hope that people will read this instead of pseudo intellectual garbage like Sapiens by Harare or guns germs and steel by diamond. Those books are based on Western assumptions about the history of humanity highly colored by monotheism, liberalism, and rationality. This book will blow your brain open and it should be required reading.