Fairies, Elves, Trolls, that live in magical forest inside of caves and hollow trees, and similarly Superior Alien Intelligences, that have mastered time travel have advanced considerably further on the Evolutionary path.

Can someone please come up with future sci-fi that does not involve aliens who reach Earth and make contact via worm-hole or some metaphysic device? How about sci-fi with NO aliens, just lonely humans trying to survive on Mars?

As for aliens, they might as well come from hollow trees, or off a speck of dust to which Horton was listening.