Does science fiction satisfy something that mainstream writing does not?
Yes, it does, because the mainstream hasn’t been paying attention to all the changes in our culture during the last fifty years. The major ideas of our time—developments in medicine, the importance of space exploration to advance our species—have been neglected. The critics are generally wrong, or they’re fifteen, twenty years late. It’s a great shame. They miss out on a lot. Why the fiction of ideas should be so neglected is beyond me. I can’t explain it, except in terms of intellectual snobbery.