Try musicians that are used to playing extremely high speed semihemidemisemiquavers.
replyWe notice latency. Neil Peart could almost get sample-precise timing, he was so godlike.
Humans are good at predicting stuff, and they can notice when the expected doesn't happen.
replyBut I wouldn't necessarily say that people can notice it everywhere in every state of mind. The medium, context etc all matter a lot.