I thought that was clear: prior to HFT, the seller would have made the deal with the buyer without the intermediary HFT because if the latency. HFT exists becau

I thought that was clear: prior to HFT, the seller would have made the deal with the buyer without the intermediary HFT because if the latency. HFT exists because of speed. Very hard to say "High Frequency Trading" without saying "High Frequency".