For whatever it's worth*: I'm not skeptical of it at all. I've done this in a terminal before without even looking at the screen, so I know it can't have anythi

For whatever it's worth*: I'm not skeptical of it at all. I've done this in a terminal before without even looking at the screen, so I know it can't have anything to do with visual reaction. Similar to the other reply, I also commonly do that when typing, where I know I've fat fingered a word, exclusively from the feeling of the keyboard. But also, your not just trying to beat the fork/exec. You can also successfully beat any number of things. The pre-commit hook, the DNS look up, the TLS handshake. adding an additional 100ms of latency to that could easily be the difference between preempting some action, interrupting it or noticing after it was completed.