I was raised as an Orthodox Jew in a major neighborhood specializing in that, in Brooklyn. And somewhere when I was about 14, something changed. And that change probably involved updating every molecule in my body, in that I sort of realized: this is nonsense, there's no God, there's no free will, there is no purpose.

One definitely wants to have a functioning hippocampus. It's all about learning and memory, the part blown out of the water by Alzheimer's disease. It's also the part that is most vulnerable to the effects of stress.

We're a miserably violent species. But there's a complication, which is we don't hate violence, we hate the wrong kind. And when it's the right kind, we cheer it on, we hand out medals, we vote for, we mate with our champions of it. When it's the right kind of violence, we love it.

But I like schlocky violent movies, but I'm for strict gun control. But then there was a time I was at a laser tag place, and I had such a good time hiding in a corner shooting at people. In other words, I'm your basic confused human when it comes to violence.

Juvenile justice is probably the area that's most ripe for reform, in the nice liberal sense of the word, simply because there's no getting around the fact that a teenage brain is not an adult brain.

Genes are not about inevitabilities; they're about potentials and vulnerabilities.