Charles C. Mann, a correspondent for The Atlantic, Science, and Wired, has written for Fortune, The New York Times, Smithsonian, Technology Review, Vanity Fair, and The Washington Post, as well as for the TV network HBO and the series Law & Order. A three-time National Magazine Award finalist, he is the recipient of writing awards from the American Bar Association, the American Institute of Physics, the Alfred P. Sloan Foundation, and the Lannan Foundation. His 1491 won the National Academies Communication Award for the best book of the year. He lives in Amherst, Massachusetts. A few years ago, while I was researching a book on the history of globalization, I suddenly realized that I was seeing the same two names on a lot of the smartest stuff I was reading. The names belonged to two economists, Daron Acemoglu and James Robinson. Much of their work focused on a single question: Why are poor places poor, and is there something we can do about it?