There are times in our lives when we have very little information upon which to make a decision – sometimes there's absolutely no information and nothing but the hum of a white noise machine. And yet still you have to make a decision. So you can use your experience, your intelligence, you might even try and tap into metaphysics and the principle governing all things! But occasionally all you can do is toss a coin. If you want to make sure you're right do best of three. If there is not enough data, or there cannot be enough data, insist on a coin toss. At least that way you can save yourself hours of pontificating and admit to yourself that you are winging it.