An excerpt:

…predictions are a way of demonstrating knowledge. Of course, in most things, a successful demonstration involves being right. In golf, a good argument will suffice. Most compellingly, human beings are wired to predict. In ancient times predictions served as psychological counterweight to the extreme uncertainty of life. As we’ve gained more control over daily existence, predictions help encourage the illusion that we are in charge of our own destiny. The more that is unknown, the greater the urge to predict. As the recently departed futurist author Ray Bradbury once said, “Mysteries abound where most we seek for answers.”

If you can find yourself comfortable not trying to predict daily life (and trading) there is a nice reward for you.