The story of Nogales highlights another major problem in adapting Diamond’s thesis: as we have already seen, whatever the drawbacks of the Inca and Aztec empires were in 1532, Peru and Mexico were undoubtedly more prosperous than those parts of the Americas that went on to become the United States and Canada. North America became more prosperous precisely because it enthusiastically adopted the technologies and advances of the Industrial Revolution. The population became educated and railways spread out across the Great Plains in stark contrast to what happened in South America.
