Trees are essentially growing chairs. There are lots of primates that sit and sleep in them.

The rewards for biotechnology are tremendous - to solve disease, eliminate poverty, age gracefully. It sounds so much cooler than Facebook.

Clearly, we are a species that is well connected to other species. Whether or not we evolve from them, we are certainly very closely related to them. A series of mutations could change us into all kinds of intermediate species. Whether or not those intermediate species are provably in the past, they could easily be in our future.

My laboratory and my obsession is about safety and building/engineering safety. It's not just a matter of saying we want the world to be safer; we have to create technology.

My greatest surprise was that so much of what we think is common sense is just prejudice, and so much of what we think is scientific fact is about as scientific as the idea that the sun revolves around the earth.

I realize that, to many readers, Hard Fantasy may seem to be a contradiction in terms. Fantasy, according to most generally recognized definitions, differs from both 'real world' fiction and 'science fiction' in that magic or magical creatures are active elements.

Another random thing I do is the search for extraterrestrial intelligence, or SETI. And you may be familiar with the movie 'Contact,' which sort of popularized that. It turns out there are real people who go out and search for extraterrestrials in a very scientific way.

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.