Sam Hughes' entire fiction section on qntm.org is worth reading if you enjoy stories like this. I'd recommend the "Ed stories" (http://qntm.org/ed), "Time Loop" (http://qntm.org/timeloop), "Valuable Humans In Transit" (http://qntm.org/transit), and the entire set of "Fine Structure" (http://qntm.org/structure), which is a large piece of fiction made up of small stories that he recently finished up.