>>13401819growth stocks have the strongest trends so it would make sense to assume that momentum strategies would work best with them; but i will defer to your judgement here
behavioral finance is a spook. it all began with Keynes' animal spirits and Galbraith made a big fuss about bubbles, but we can go even further back to Mackay's madness of crowds to see that it was fully embedded in the zeitgeist since the 19th century.
behavioral finance was made up by two jews who wanted to rightly dispel the myth of homo economicus
The average pre-inflation return for major indices since the 18th century is 7% yearly.
All your returns won't disappear, but they'll begin to return to this 7% average. Incidentally, that's basically the same as a low-fee index fund, which begs the question: why bother with all this strategy if you can just put your money in an index fund, forget about it, and get almost the exact same.
Consistently outperforming the market isn't too difficult if you know what you're doing. What's difficult is keeping hold of your profits when you have tax, transaction fees, and other costs.
Lets not forget about opportunity cost of time...
Buffet still has to pay tax btw