Violence is declining, argues psychologist Steven Pinker. What are we doing right?
Over the past century, violent images from World War II concentration camps, Cambodia, Rwanda, Darfur, Iraq, and many other times and places have been seared into our collective consciousness. These images have led to a common belief that technology, centralized nation-states, and modern values have brought about unprecedented violence.
Our seemingly troubled times are routinely contrasted with idyllic images of hunter-gatherer societies, which allegedly lived in a state of harmony with nature and each other. The doctrine of the noble savage—the idea that humans are peaceable by nature and corrupted by modern institutions—pops up frequently in the writing of…