If nothing else, then by "inertia" you might refer to stop running. You know, like "short squeeze". A few funds probably have this edge, especially if the brokers exchange info on stops of their clients. lol
Seriously though, momentum has been well documented and if you aggregate the hedge fund index order flow you'll see there is a lot of "trend following", momentum that creates momentum. The edge is in getting the statistics, figuring out what it means, and diversifying enough to clear out the noise of your assumptions.
If you assume EMA is good enough for figuring out momentum, ok then, good luck. The market takes all sorts.
I'm not sure where MAESTRO or this thread is going but i haven't read anything useful or mildly interesting so far. I mention physiology and he posts a recent article from the BBC about brain mapping. Not sure how that makes any sense. It's like everyone is being vague just for their own entertainment. If you have a novel hypothesis and data to back it up, write a paper and publish it. I read a few good papers every week, certainly not on ET. They're not that hard to come by so if anyone is after "insights" there are better sources.