But here's the thing history and time travelling (which you did show a citation to), travelling to the earth's centre, creation of the universe, the future, parallel universe, the ultimate fate of the universe, dystopias and utopia (which you did show a citation to), telepathy, intelligence amplification, invisibility, psi powers and psychic phenomenon (as well as the three themes beneath it), resizing, shapeshifting, teleportation, apocalypses or world wide disasters, posthumanism, the ultimate fate of the universe and the kardashev scale, floating cities, underground cities, walking cities, the age of post-scarcity and domed cities can be used in fantasy, there for not exclusive to science fiction. Alien invasions and artificial intelligence (amongst the other themes that are on the page that I can't think of) can be used in horror and are there for not exclusive to science fiction. And as much as I hate to (as we'd be stuffing up the article even more so, but it'd be for it's own good because then after seeing how bad the article's gotten Yobmod wouldn't be so strict about which themes can be used in science fiction) we need to get rid of them immedietally.