> Speed-of-light limitations say that yes, the best HFT will happen close to the trading floor. Why? HFT needs to be close to where transactions happen, but t

> Speed-of-light limitations say that yes, the best HFT will happen close to the trading floor. Why? HFT needs to be close to where transactions happen, but that's not the trading floor. The trading floor is just a place where a bunch of people with a bunch of screens connected to the "place where transactions happen" gather each trading period. The trading floor can't be where transactions happen because it's got people in it, not machines.