Human emotions are not an option.Most money is made using algorithms and it seems it's rather the human traders that are going bust more often. A human with all of the various emotions is far more unstable to do a task that requires ruthless discipline and an emotionless approach. Anything from sleep deprivation to marital problems to severe losing (or winning) streaks to massive volatility can and will affect the human trader. No amount of experience can save him from all these scenarios.