" The tenth planet beyond Pluto, in this instance, will be discovered, or won't be discovered, when the space telescope goes into orbit in the near future. The existence of advanced life-forms beyond Earth may not be verified or refuted for a thousand years or longer — or it may be verified tomorrow, if the "Space Brothers" beloved in UFO lore suddenly land en masse — but at present it remains similarly indeterminate. "

― Robert Anton Wilson , The New Inquisition: Irrational Rationalism and the Citadel of Science