Actually if you enter randomly, but then go out using an appropriate stop loss rule (appropriate to the level of trading costs), you actually end up ahead in any market that exhibits trends (eg I tested this on futures markets, and it worked in around 92% of them). You don't do as well as if you enter using a rule that identifies the trend, but you do okay.
GAT
I find you have indeed done serrious studies, studying and thinking in this area.
Look forward to checking out your work.