The World Until Yesterday What Can We Learn From Traditional Societies? By Jared Diamond. Viking. 499 pp. $36.
On the vast time scale of human evolution, it was just this morning that Jared Diamond was a trained physiologist writing calculation-laden papers on sodium transport in the gallbladder. That was 1962, to be precise; but in the lives of individuals and even societies, a half-century can make all the difference. Setting his sights well beyond gallbladderata, Diamond, who teaches geography at UCLA, has become that rare author read by academics in various disciplines and huge popular audiences. Guns, Germs, and Steel, his Pulitzer Prize–winning bestseller from 1997, sought to explain nothing less than Western global predominance over 13,000 years of history, arguing forcefully for the influence of geography on the development…