The Beating Heart of Science Fiction: Poul Anderson and Tau Zero
Science fiction — what is it, really? What elements place a story firmly in the genre? For any requirement that you can think of, there is probably a great sf story that violates it, and rather than cobble together some dictionary-ready definition, it’s easier to just think of particular books that you would hand to someone unacquainted with the genre with the words, “Here — read this; this is science fiction!” Everyone would have their own choices for such a…