Hello everyone! Today I was striked by a thought which I cannot get rid of it. But its such a noob question for many of you here nd sorry for that.. Lets assume there is a betting system in which you earn double the money you invested if you win. I invest a series of amounts like $500 $1000 $2000 $4000 $8000 $16000 I'm pretty sure I will win one of these six bets. So I'll bank $500 surely per day. Is this possible. And.. If everyone knows this and does the same thing.. I mean if there is a system where everybody wins, where the money comes from?