Mind Boggling
Perhaps we are alone in the universe. Perhaps there’s no other planet in the whole universe that has intelligent life on it. Or perhaps that’s not true. Both alternatives are mind-boggling. The hypothesis that we’re alone is mind-boggling; the hypothesis that we’re not alone is mind-boggling, so you can’t use mind-bogglingness as your litmus test.
~ Philip Morrison (1915-11-07 2005-04-22 age:89)