Sherlock Holmes and Dr. Watson are going camping. They pitch their tent under the stars and go to sleep. Sometime in the middle of the night, Holmes wakes Watson up: Watson, look up at the stars, and tell me what you deduce.Watson says, I see millions of stars and even if a few of those have planets, its quite likely there are some planets like Earth, and if there are a few planets like Earth out there, there might also be life.Holmes replied: Watson, you idiot, somebody stole our tent.