After I read this “Sapiens” book, I re-read once again “The Dragons of Eden: Speculations on the Evolution of Human Intelligence” by Carl Sagan. The contrast i

After I read this “Sapiens” book, I re-read once again “The Dragons of Eden: Speculations on the Evolution of Human Intelligence” by Carl Sagan. The contrast is stark, Sagan is so much more insightful and at the same time, more careful with his conclusions. It's like comparing an amateur with an accomplished professional.