> This just highlights how absolutely tiny a nanosecond is, though. Those speeds are only valid for numbers already within the processor; fetching from DRAM could be hundreds of nanoseconds. Also recall Grace Hopper's excellent video with a nanosecond of cable length, which is about a foot long.

This is exactly what I was intending to highlight. The speeds at which High-Frequency Trading operates are so ridiculously fast that even a computer can't put much "thought" (let alone more considered "wisdom") into a problem.