Seems like they were just citing anecdata anyway, so calling out a statistical error doesn't seem worthwhile. I believe their main point is that humans are muc

Seems like they were just citing anecdata anyway, so calling out a statistical error doesn't seem worthwhile. I believe their main point is that humans are much more tolerant of latencies than is commonly assumed. I remember reading about Carmack's early work with VR and sensor delays and screen refresh delays on the order of 100ms and as high as 400ms and it still being enjoyable[1]. At 60fps you've got about 16ms per frame to work with, and I'm sure the human mind doesn't need input -> change in image within a single frame (though I'm sure pro gamers would notice). I even see people using and enjoying shadowpc + vr headsets, where delay between head turn and change in image can be nauseating. [1] https://www.pcgamesn.com/virtual-reality-john-carmacks-battle-20-millisecond-latency?amp https://www.pcgamesn.com/virtual-reality-john-carmacks-battl...