For most people, the major hurdle in grasping modern insights into the nature of the universe is that these developments are usually phrased using mathematics.

For me it's been very exciting to contribute to the public's understanding of how rich and wondrous science is.

In my own research when I'm working with equations, I never feel like I really understand what I'm doing if I'm solely relying on the mathematics for my understanding. I need to have a visual picture in my mind. I'm constantly translating from the math to some intuitive mind's-eye picture.

There are many of us thinking of one version of parallel universe theory or another. If it's all a lot of nonsense, then it's a lot of wasted effort going into this far-out idea. But if this idea is correct, it is a fantastic upheaval in our understanding.

As a child, I had no interest in science whatsoever - then I started writing and recognized how relevant it was. My first book about science and medicine captured the world of organ transplantation in 1989 from the points of view of all of the participants - scientists, surgeons, social workers, organ recipients and even donor families.

The scientific effort to inform the public about landslide risks often runs head-on into powerful economic interests.

In the meantime, I just have to create those realistic goals about the fact that I don't have a ton of options as an actor who's been on a science fiction show for 8 years.

Fundamental physics is like an art more or less. It's completely non-practical, and you can't use it for anything. But it's about the universe and how the world came into being. It's very remote from your daily life and mine, and yet it defines us as human beings.