Technology, demography, and destiny

Malthus had no way to tell that the coming century would bring with it technological improvements in agriculture (steam and gasoline tractors), transportation (railroads, automobiles), public sanitation (clean water, sanitary sewers), and health care (improved pediatric and geriatric medicine), all of which enabled first England, then parts of Europe, the U. S., and other countries to escape the Malthusian trap. And it turns out that everybody escapes more or less the same way, although the timing varies from place to place.