The Swords were still interesting but by then a cast of characters had started to appear and go on from book to book, and other things about the world began to feel constricting. And there were other things I wanted to do, so I closed the series up and stopped it.

I don't know why a computer game can't be an art form just as a puppet show or an opera is. I'm still interested in computer games as something I would like to work on someday.

I finally decided one day, reading science fiction magazines of the time, I could do at least as well as some of these people are doing. So I finally made a serious effort.

And what we know, or think we know, about the universe of space and time is changing very quickly.

I suspect that writer's block afflicts mainly people who have some stable and ample source of income outside of writing. So far it hasn't been a problem.

I guess if one set of my books was selling like Stephen King's, and the other wasn't selling at all, editors would want me to do the ones that sold like Stephen King's. But they seem to be willing to let me pick what I want to do next.

Probably all the books I've ever written have been efforts to define the boundaries of humanity.