 When my own daughter was born, I went around to the experts on intelligence that I knew and said, what do I need to do to make her smarter? I wanted to have a smart child. They said, don't drop her on her head, which that was already one of my plans, so that wasn't really helpful. But it turns out that good parents, it basically becomes a genetic issue that the kid's genes determine their IQ, whereas bad parenting reduces the link from genes. So the implication is...