A school of thought that emerged in the 1950s held that every mental state corresponds to a physical state. So-called reductive materialists believed people can be reduced to neurons and circuitry that might be created artificially. That theory was rejected by many who said it was too simplistic and ignored religious and mystical aspects of life. We had been there before. Darwinism provoked what William Butler Yeats called a “revolt of the soul against the intellect.” In a […]