There’s a meme going around: in 15 minutes, come up with a list of 15 books that “will always stick with you”. Since lists on their own aren’t all that interesting, I’ve added some notes about why I’ve chosen these books. “The Man Who Folded Himself”, David Gerrold. One of the great SF time travel novels. Take one ordinary guy, a time machine, and the many-worlds hypothesis, and watch everything go completely nuts.