Trading is also highly addictive. When behavioral psychologists have compared the relative addictiveness of various reinforcement schedules, they found that intermittent reinforcement – positive and negative dispensed randomly (for example, the rat doesn’t know whether it will get pleasure or pain when it hits the bar) – is the most addictive alternative of all, more addictive than positive reinforcement only. Intermittent reinforcement describes the experience of the compulsive gambler as well as the future trader. The difference is that, just perhaps, the trader can make money.” However, as with most affective aspects of trading, its addictiveness constantly threatens ruin. Addictiveness is the reason why so many players who make fortunes leave the game broke.”