I studied physics at Princeton when I was a college student, and my initial intention was to major in it but to also be a writer. What I discovered, because it was a very high-powered physics program with its own fusion reactor, was that to keep up with my fellow students in that program I would need to dedicate myself to math and physics all the time and let writing go. And I couldn't let writing go, so I let physics go and became a science fan and a storyteller.

I will never probably have the mathematical foundation to truly understand what string theorists are talking about, but it feels good, just for its own sake, to get as close to an understanding as you can.

Everything I learn about the world, whether it's the simple arcana of how commercial products are manufactured and designed and how they reach our shelves and where the chips come from and who does the code, to more profound things like whether or not a black hole might be penetrable as a wormhole, whether or not universes might be accessible from here, whether space can be stretched and compressed to enable faster-than-light travel without violating physical law - all of those things have tremendous story potential.

The reality of space travel I think is somewhere in the middle. We will get there, it will be hard, it will take a long time, and in the end, the most extraordinary thing we will find when we get there will be ourselves.

When a new writer comes onto a project, he'll make wholesale changes just to mark the territory or for greater credit.

I grew up a really nerdy kid. I read science fiction and fantasy voraciously, for the first 16 years of my life. I read a lot of classic Cold War science fiction, which is much of the best science fiction, so I speak the language well, which is a commodity that's not easy to come by in Hollywood.

An X-wing fighter flies like an airplane. If you look at the physics, it's actually quite impossible.