collection of short stories of scenarios in philosopher's analogies, like the train one, or of mathematical examples, the infinite hotel
story example: a story about how is working as a receptionist in an infinite hotel
story example 2: scientists who invented the first teleported, debating if...
world where magic exists, but many groups understood it differently, some think it is god's blessing, a natural ability, something learned, some kind of bloodline, etc..
main character is working for the government trying to categorize each group, and how each interacts with magic