He probably means 10 microseconds, even if he's talking about HFT. The state of the art for FPGA's seems to be around 700 nanoseconds. [0]
[0] http://stackoverflow.com/questions/17256040/how-fast-is-stat...
[0] http://stackoverflow.com/questions/17256040/how-fast-is-stat...
Are you sure you don't mean 10 microseconds?