Another "aliens built the pyramids" story, but told from the theory of aliens actually just being billionaires from other planets who funded scientific advancements to prevent themselves from dying of old age. Otherwise, the aliens would have pretty much exactly the same technology as us and controlled our primitive population with displays of power and magic (drones, weapons, etc..). The alien that came to our planet aspired to be eternally worshiped by a population that is too dumb to figure out they are being conned and accomplished this easily by controlling the information. However, the pilgrimage from their home planet to ours took thousands of years, and it was understood to be a one-way trip. So when various things caused the alien to show signs they were dying of old age anyway, the only real option available to the alien, in lieu of studying all of the science himself, was to bite the bullet and reverse keeping us in the dark so that we would study how to extend its life. He died anyway long before we could get to where we are, scientifically. Or maybe the story is that he is still holed up somewhere.
