Sherlock Holmes and Dr. Watson go on a camping trip.
As they lay down for the night, Holmes says: "Watson, look up into the sky and tell me what you see".
Watson: "I see millions and millions of stars."
Holmes: "And Watson, as London's finest doctor, what does that tell you?"
Watson: "Astronomically, it tells me that space is infinite, that there are millions of galaxies and potentially billions of planets.
Holmes: "Somebody stole our tent!"