too much risk. losing money is much easier than winning money. Can you imagine... I have a friend, who lost 10k in one week (last week). Totally he lost more than 30k from Last May. since he involved in this, the whole market started to drop a lot last May...He deposited the money three times respectively, That's all his asset. He got nothing back... bad luck---whatever he bought dropped, and whatever he sold went up. So he decided to stop playing this number game...he really regret playing this game.