Carmack on why transatlantic ping is faster than pushing a pixel to the screen
I am not really clear on the measurement methodology. Why is a game controller involved?Did he trigger the ping from the same game controller button?Did the game controller trigger the frame buffer swap on the graphics card?At 240Hz the lower-right pixel on an LCD will be painted 4ms after the upper-right pixel. Where were the measurements taken.Yes, LCDs are scanned devices, just like CRT's, you don't see it because of the slow response time.Lastly, I didn't see any numbers.  Where are the measurements?