On the way to a conference, a revered scientist is talking to his chauffeur The driver asks him: "–Boss, I've driven you around the country for over 10 years. I've listened to your talks, hundreds of times. I am pretty sure I know everything by heart now. Would you like to make a bet? —What kind of bet? —We look alike. You've never talked in this city. I bet I could do the talk instead of you without nobody noticing. And if I succeed you'll pay me double for the trip. If I don't, this one's for free." Bored and with nothing better to do, the scientist ends up agreeing, believing the chauffeur didn't stand a chance. They switch clothes at a reststop and once they arrive, the driver goes to the stand while the scientist sits in the audience. Miraculously, the chauffeur delivers the talk in an almost perfect way. No one seems to notice. At the end, a mic is passed around through the audience for some questions, and the driver answers them all correctly, until a young professor poses a question he has never heard before. He has no idea what the answer is. He freezes before scratching his head, taking a deep breath and saying: "Dear colleague, I don't mean to offend you, but that question is so insultingly easy, that I will let my chauffeur in the audience answer it for me."