DislikedSolution to the former takes a fair number of the latter.
And you're dead right: every strategy has a definable form of PA in which it profits, and an equally definable form in which it fails miserably. In spite of what the artificial intelligence people believe, it is very, very hard to quantify, let alone program, what goes on in the brain's pattern recognition, so when is say "definable", that means to a human, not a machine so readily.
EA's, from what I've seen, are generally a few dozen lines of c code that really can't handle the (here's...Ignored
Unless enough liquidity is present to move the market artificial intelligence is hard to quantify... yes
Interesting though, one robot was trying to milk the energy sector in Paris some time back,
when one of the guys saw how it operated when a stock was bought it shorted another without any volume control ---- they extracted some serious cash by buying when it had sold then re enter in the other stock which reversed the position into profit and made cash...
Lasted for 5 years