When we compare it to other conditions that we're familiar with, things like cancer, heart disease, diabetes, in fact, genetics plays a much larger role in autism than it does in any of these other conditions.

And we think it's for all of these reasons that they take more risks with things like alcohol and drug use; crash dieting; cosmetic surgery; unprotected, earlier sex; and self-harm.

It's been well-described and well-observed in primates, but you also see it in rats, and wherever you find it -- humans, primates, rats -- you find it associated with things like tickling.

And so I sort of felt like Steve Jobs, who described his epiphany as when he realized that most of us, as we go through the day, we just try to avoid bouncing against the walls too much and just sort of get on with things.