Transcription: I say taxi! I'm a historian. Driver, you are to take me to the first planet mankind ever set eyes on. Take me to the first planet ever seen by mankind. The question is sort of a trick. The answer is right before your eyes. Oh dear me, Earth, of course. How clever of you and terribly absent-minded of myself. I am most grateful to you. You have earned a worldly tip. Here you are. Are you sure this is the first planet seen by mankind? I hardly think so. Try again, driver. Of course, the world around us is the first place we and our ancestors ever set eyes on. When we look to the sky, even in anci ...