Even the great historical conflicts of the twentieth century were not nearly as deadly in proportional terms as the continual violence in the pre-state conditions of humanity’s past. Pinker studied twenty-seven undeveloped societies throughout history without a formal state—a mix of hunter-gatherers and hunter-horticulturalists that probably represent most human communities during prehistory.[169] He estimates that these societies averaged a rate of death in warfare of 524 per 100,000 people per year. By comparison, the twentieth century saw two world wars—which included genocide, atomic
...more

