P J O Rourke : Ecology is the science of everything. Nobody knows everything. Nobody even knows everything about any one thing. And most of us don't know much. Say it's ten-thirty on a Saturday night. Where are your teenage children? I didn't ask where they said they were going. Where are they really? What are they doing? Who are they with? Have you met the other kids' families? And what is tonight's pot smoking, wine-cooler drinking, and sex in the backseats of cars going to mean in a hundred years? Now extend these questions to the entire solar system. # Sex # Science and Scientists # Children