When you start writing things to try to persuade someone who's not already part of your guild or your profession that something is interesting, it forces you to ask yourself, "Well, why is this interesting?"

We don't just respond to things as we see them, or feel them, or hear them. Rather, our response is conditioned on our beliefs, about what they really are, what they came from, what they're made of, what their hidden nature is.

Over the last few years, I've been focusing on questions having to do with the self, and questions having to do with morality. I'm very interested in why we do good things, or bad things, and where moral judgments come from.

I'm really interested in the pleasure we get from stories and the pleasure we get from movies, and certainly the pleasure we get from virtual experiences. My complaint is against empathy as a moral guide. But as a source of pleasure, it can't be beat.

It's hard to pull apart empathy from compassion. What is really clear is that we innately care for other people at least to some extent.

The irrationality of disgust suggests it is unreliable as a source of moral insight. There may be good arguments against gay marriage, partial-birth abortions and human cloning, but the fact that some people find such acts to be disgusting should carry no weight.

When people want to inspire you to turn against some group of people, they'll often use empathy.