Comment by xg15

> I've heard that a decent drummer can hit a note within 15 milliseconds

I find that easily believable. I think human reactions can be very fast and very precise if there is some kind of feedback - e.g. a clue, pattern or rythm to latch onto.

What I find harder to imagine is precision without any feedback - e.g. a human player pressing a button after exactly 15 milliseconds, without any kind of clock.

...but as you say, there may actually be some clues.