Quote from intradaybill:
"Us against the machines" is a red herring. Us agaisst research and trading departments staffed with highly paid brains with graduate degrees in math, physics, statistics, psychology, etc. is the reality. People create robots.
Can you beat them? The answer is yes but you will have to do something out of the ordinary. That was my point. David beat Goliath, that is true. Do you know before that and after that how many were beaten by Goliaths?
Not necessarily true. If you are trading a strategy that trades relatively small size (due to scalability issues) then hedge funds arent your competition...
Also, it ISNT a zero sum game... different time frames allow for winners on both sides of the trade. A swing trader can be unwinding a position for a profit, while the scalper takes the contra side, and rides a continuation for a small profit..