“We naturally see the world as containing both material objects, which are governed by physical laws, and mental entities, whose behavior is intentional and goal–directed. Some things in the world, such as people, can be seen either way, as physical bodies or as intentional agents. However, as Bloom describes, we tend toward the latter interpretation whenever possible, even attributing intentions to animated shapes on a computer screen if they move in certain ways. According to Bloom, dualism is the product not of nurture but of nature—specifically, evolution by natural selection. It was adaptive for our ancestors to be able to predict the behavior of physical objects and social creatures…”
Ethan Remmel reviews Descartes’ Baby: How the Science of Child Development Explains What Makes Us Human by Paul Bloom, here in American Scientist Online.