The cost of adding a feature isn't just the time it takes to code it. The cost also includes the addition of an obstacle to future expansion. The trick is to pick the features that don't fight each other.

The core of what I do is solve problems, whether that's in graphic engine flow or rockets. I like working on things that are going to have an impact one way or the other.

One of the reasons microcomputers progressed so fast is people are willing to accept crashes. It's faster to build something and try it, even if it means you'll have to rebuild later... If you spent too much time building and massaging one vehicle, you don't learn anything.

The great games are the space sims and driving sims and these experiences where you're basically sitting at a table with nothing happening in front of you. A lot of interesting things are evolving there. There are great games that can be made.

Science fiction was one of those places, particularly during the McCarthy era, where you could write whatever you wanted because it was beneath contempt. They didn't bother censoring it.

Science is constantly proved all the time. If we take something like any fiction, any holy book, and destroyed it, in a thousand years' time, that wouldn't come back just as it was. Whereas if we took every science book and every fact and destroyed them all, in a thousand years they'd all be back because all the same tests would be the same result.

Trust science, believe that innovation and discoveries are good for us, and make decisions based on data and evidence.

My art teacher was really encouraging me, because he really liked that I could draw. I felt very torn. At that time, I had to pick one, and I felt much more confident in the arts than I did in chemistry. My big thing was that I actually wanted to be like Jacques Cousteau.