http://www.economist.com/finance/displaystory.cfm?story_id=E...
So... it seems as if people really do think of everything - why wouldn't they, with millions or billions on the line. What hope does an individual have?
More than you think. Especially if you change your attitude towards the problem a bit ;-)
A whole lot of people support themselves by trading successfully. The thing is, making decent money by trading is a full time job, not an after-hours hobby.
You CAN make money designing trading strategies. People do it. The question is simply whether the EV returns on your time will be higher than working on an actual job or businesses. Someone smart enough to make a winning trading system is also smart enough to get paid a lot in other endeavors. So more often than not it's a wash. Except traders get to work in their underwear...