Quote from Anaconda:
Yes and no.
There are strategies out there that do present a small, yet scalable edge while being employed by many hedge funds. Convert arb, S&P/Dow/Russell additions & subtractions, pair trading, correlation/relative value versus a tradable index futures or options. These are not secrets and they can be profitable but these are tired edges. If you like to code, I suggest researching those, but don't expect a holy grail
Frankly, these are not that different from yours, as a breakout system is nothing new or special. Chances are that patterns will change and your system will stop working soon. It has to be constantly modified & updated.
The real lucrative edges require out of the box thinking and often involve instruments that are not stocks or widely traded futures. But that is a different discussion.
i agree with anaconda about scalable edges, pairs is a good example not a huge edge, maybe a statistical edge but definately a scalable one and performance shouldnt be hindered. actually if you are trading pairs and arbing two correlated stocks you are going to want people to pile in on your side of the trade because this is essentially a fade trade when doing pairs. if you had a decent edge in something like illiquid stocks than that could seriously impare the edge if others are let in on it.

