One of the nice things about science fiction is that it lets us carry out thought experiments.

If you think of your life as a kind of computation, it's quite abundantly clear that there's not going to be a final answer and there won't be anything particularly wonderful about having the computation halt!

The simple process of eating and breathing weave all of us together into a vast four-dimensional array. No matter how isolated you may sometimes feel, no matter how lonely, you are never really cut off from the whole.

If we suppose that many natural phenomena are in effect computations, the study of computer science can tell us about the kinds of natural phenomena that can occur.

Selling a book or story has never become absolutely automatic for me.

I like a book better if I can't predict what's going to happen.

Advice to beginning SF writers? Write a lot, finish what you write, and when it's done, keep sending it out for quite awhile.