And it's called the Monty Hall problem because Monty Hall was the game show host in Let's Make a Deal, where they would set up a situation very similar to the Monty Hall problem that we're about to say. So let's say that on the show, you're presented with three curtains. So you're the contestant, this little chef-looking character right over there. You're presented with three curtains. Curtain number one, curtain number two, and curtain number three. And you're told that behind one of these three curtains, there's a fabulous prize, something that you really want, a car or a vacation or some type of large amount of cash. And then behind the other two, and we don't know which they are, there is something that you do not want, a new pet goat or an ostrich or something like that, or a beach ball, something that is not as good as the cash prize.