The ability to daydream is useful. For example, I think many young cryptocurrency traders should think clearly before entering the market: How would I invest if I were A8, and what would happen if I were A9. In this way, if you really make money, you should calm yourself down and change your strategy in time. Because when you are comfortable with the game, you will have inertia, path dependence, and addiction. You will not be able to calm down even when you are full of ambition. So you should think clearly when you are poor and free.