The Mirrored Road into the Interior

"To Mr. Gaiman,

My English teacher says that all good sci-fi exists to comment on society and its problems. As an author and a reader of science fiction, do you agree with this?

Not unless you change the words "all good" to "some". It's one of the many things that SF can do, and it's one of the many things that good SF can do. But there are lots of other things it does, including simply tell good stories (a valid end in itself)."

Amen