in Edelman’s view, very little else is programmed or built in. A baby turtle, on hatching, is ready to go. A human baby is not ready to go; it must create all sorts of perceptual and other categorizations and use them to make sense of the world—to make an individual, personal world of its own, and to find out how to make its way in that world. Experience and experiment are crucially important here—neural Darwinism is essentially experiential selection.