It’s the ability to believe in the unpredictability of the game at the micro level and simultaneously believe in the predictability of the game at the macro level that makes the casino and the professional gambler effective and successful at what they do. Their belief in the uniqueness of each hand prevents them from engaging in the pointless endeavor of trying to predict the outcome of each hand. They have learned and completely accepted the fact that they don’t need to know what’s going to happen next. More importantly, they don’t need to know in order to make money consistently.
Because they don’t have to know what’s going to happen next. They don’t place any special significance, emotional or otherwise, on each individual hand, spin of the wheel, or roll of the dice. In other words, they’re not encumbered by unrealistic expectations about what is going to happen, nor are their egos involved in a way that makes them have to be right. As a result, it’s easier to stay focused on keeping the odds in their favor and executing flawlessly, which in turn makes them less susceptible to making costly mistakes. They stay relaxed because they are committed and willing to let the probabilities (their edges) play themselves out, all the while knowing that if their edges are good enough and the sample sizes are big enough, they will come out net winners.
The best traders use the same thinking strategy as the casino and professional gambler. Not only does it work to their benefit, but the underlying dynamics supporting the need for such a strategy are exactly the same in trading as they are in gambling. A simple comparison between the two will demonstrate this quite clearly.
– Mark Douglas, Trading in the Zone