The way traders personally make money isn't by making good bets, it's by taking fees. If they make good bets, they get huge rewards, if they make bad bets, they

The way traders personally make money isn't by making good bets, it's by taking fees. If they make good bets, they get huge rewards, if they make bad bets, they get fired, but otherwise lose very little. So once you start betting with other people's money, you can do pretty well, it's just a matter of how long.