You want magic to feel real.

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.

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

You need a human story to intersect those points of interest with real stakes on the line, and then things start to be fun, where you can see the ramifications, you see the impact on people's lives of big changes - like taking a man of science, like a surgeon, and robbing him of his understanding of the universe and forcing him into a newer and wider understanding.

Space and spacecraft and zero gravity and so forth are very difficult to render.

The world may hold startling developments and shocking unknowns.

Making the right choices on the worlds we explore is going to be our biggest challenge.