I have a suspicion that at some point, an HFT group will obtain a brief but substantial lead in machine learning (a la RenTech, but on a shorter timeframe) that

I have a suspicion that at some point, an HFT group will obtain a brief but substantial lead in machine learning (a la RenTech, but on a shorter timeframe) that allows them to suck a decent amount of money out of the stock market before anyone else can respond or close the gap. We probably won’t get any sort of regulation until after that happens.