It's funny, I go to a college that specializes in math and science. Last year a group of guys came up with the brilliant idea of using the Martingale system for roulette, and they went around getting people to join them by investing money and playing. I would hear them explaining to potential investors how it worked and they actually had at least ten people interested. They were so excited and talking about what they were going to do with the money they won. Up until that point I thought about filling them in on what would really happen, but the fact that none of them took the time to do the math made me feel like they deserved to lose. Smart people can be so dumb sometimes.