Well duh. Nerve firing via the sodium-potassium pump is estimated to be somewhere around the speed of sound. Quite a difference! But probably the biggest source of "baseline" lag is just human visual processing in the brain. All told, the average person probably takes a quarter of a second to respond to a visual stimulus - maybe a fifth of a second if they're very fast (250 to 200ms). That is a long time!BazookaBen wrote:Like quicker than it takes your retina to send another chemical pulse to your brain.
There's some truth in it, but usually people frame this in an inapplicable comparison - we don't say "which is worse, the brain or the monitor" and then pick and choose. Any input lag is just added to baseline (reaction) lag per individual. But all this means is that the effects of most display technology in creating lag is usually overwhelmed by the effects of the individual's lag responsiveness. But I'm just repeating comments made in the interesting recent Tom's Hardware posts about the myths of video graphics.
