I wouldn't be of the view that because it's part of human nature, therefore we're stuck with it. But as a materialist, I can't deny that it's possible. And so it is conceivable that an artificial intelligence could greatly surpass what the human brain can do. In many ways, that's a very frightening prospect. Many people are very frightened of it; I haven't decided whether I'm frightened of it or not. We might believe in human nature behind, altogether, in the future through some kind of AI future or extraterrestrial life.