Here’s the thing you learn if you’re trying to be a good leftist: the superficial things that divide us (the superstructure) are illusions distracting us from the material circumstances that unite us (the base). We are all being oppressed by the same system of labour exploitation under capitalism.

Your standard sci-fi multiverse usually operates based on the parallel worlds hypothesis in quantum physics - when a "decision" is made, a parallel world is created for each possible outcome, creating incalculable parallel worlds that may have a lot in common or may be completely foreign to everything