This is the best post I've found that actually describes what it's like to run a HFT firm / desk. Probably best article ever written about HFT. For me HFT is t

This is the best post I've found that actually describes what it's like to run a HFT firm / desk. Probably best article ever written about HFT. For me HFT is the most interesting job one can have and it requires you to be good at a variety of things to make money: low level tech, quant modeling, risk management, business sense so you can cut good deals, etc. Unfortunate the industry is unfairly maligned by people who really don't know what they're talking about (like Michael Lewis in Flash Boys). It's cheaper to trade now (especially for retail) than it ever has been in history and the positive effect this has had on the capital markets and the economy in general cannot be understated.