Experts who don’t have the technical tools — historians and anthropologists especially — have an important role to play as well; they should scour the book for any instances of Occam’s broom (with which one sweeps inconvenient facts under the rug). This can be an innocent move, since Henrich himself, in spite of the astonishing breadth of his scholarship, is not expert in all of these areas and may simply be ignorant of important but little-known exceptions to his generalizations. His highly detailed and confident relaying of historical and anthropological facts impresses me, but what do I know? You can’t notice what isn’t mentioned unless you’re an expert.