> Ballmer could also change the number he's thinking of as you make guesses, so part of the game would be guessing what he's thinking. If I were to take the be

> Ballmer could also change the number he's thinking of as you make guesses, so part of the game would be guessing what he's thinking. If I were to take the bet with him, I'd make him write down the number first hide it (turn the paper over / put it under a book, whatever).