The 10,000 Year Explosion

I just finished The 10,000 Year Explosion: How Civilization Accelerated Human Evolution by Gregory Cochran and Henry Harpending. It's an interesting book, but ultimately hard to review because much of it seems like smattering of anecdotes and speculation. At its cores it attacks the idea that humans haven't changed much since the paleolithic and that the reason our world has changed is because of culture, not genetic change.