Great thread, I would say about underlying unity of literature, others doubtless would say otherwise, Max can say whatever he likes (but we can all decide we know better, them's the rules)https://twitter.com/maxgladstone/status/990700639620616193 …
Good thread, but I've always disliked fanfic and turn a skeptical eye towards X writing in the universe of Y. Universe creation is one of the great things about F&SF; Star Trek novelization #918 is like skipping the steak and loading up on bread.