We all are big believers in the notion that as a species we are better together than we are apart, that the common core of our shared humanity is stronger than that which seeks to marginalize us and factualize us and turn us against each other.

I keep waiting for a paradigm shift to happen that will let network and studio execs see that sci-fi is the same as any other genre in terms of how you approach it - logically, character-based, with challenging ideas and forward thinking - but I worry that it might never happen in my lifetime.

A changeling is one child substituted for another. I couldn't find anything more apt. We had to kind of fight that supernatural element in the publicity, and I offered to try and find another title, but Clint liked it, and it stayed.

Understanding is a three-edged sword. Your side, my side, and the truth.

Like everyone else, I am going to die. But the words - the words live on for as long as there are readers to see them, audiences to hear them. It is immortality by proxy. It is not really a bad deal, all things considered.

Here's the miracle: I grew up thinking, 'Wouldn't it be great to write 'Superman' someday? Wouldn't it be great to create my own show, or work on 'Lensman,' or 'Forbidden Planet?'' Those were very literally the goals I set for myself, the dreams that I thought I didn't have a chance in hell of ever actually achieving. But it's happened.

I've always been kind of a mutt creatively. I started off in journalism, and I've actually done more police and procedural shows than I've ever done science fiction shows. I was on 'Murder She Wrote,' I was on 'Walker, Texas Ranger,' I was on 'Jake and the Fat Man.'