Gravity. It's not just a good idea; it's the law!

Growing up in New York, I was sort of shocked when I realized that my children are Californians. They are 14 years old, and I explain to them frequently that they will never realize the glory of a snow day. You wake up and the world says, 'Oops, it's too much fun to go to school, you've got to stay home and deal with the snow!'

The idea of an ordered and elegant universe is a lovely one. One worth clinging to. But you don't need religion to appreciate the ordered existence. It's not just an idea, it's reality. We're discovering the hidden orders of the universe every day.

I'm always going to be making costumes. It's one of the ways I relax my brain. In addition to the pleasure of having the piece, there is a deep and abiding pleasure for me assembling something in my head - learning to know something in its totality in my head, and then putting together all the constituent parts into a cohesive whole.

I'm obsessed with the form of a toolbox. The idea of a portable kit that has everything you might need ignites something inside me. It's like Batman's utility belt.

Back when I was a professional model-maker at Industrial Light & Magic, my specialty was hard-edged construction - spaceships, miniature sets, and architectural stuff. These objects were sometimes just 12 inches across yet needed enough detail to fill a movie screen.

Walking the floor at a con dressed as Chewbacca, you might as well be Bono. I mean it's ridiculous. People just walk up and grab you and hold you, because they love Chewbacca so much.