> It seems to me that the field contributes nothing to society,... Better markets allow our economy to prioritize resources better and convert assets more effi

> It seems to me that the field contributes nothing to society,... Better markets allow our economy to prioritize resources better and convert assets more efficiently. This increases prosperity. Good HFT improves markets. Of course, there is bad HFT, but such actors tend to not last long due to natural market dynamics and regulatory enforcement.