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by TipVFL 3023 days ago
Current headsets, at least the Rift, already do "look into the future" to lower the motion-to-photon latency (the amount of time between you moving your head and the screen updating based on that).

When you're dealing with a head moving, and very brief slices of time, inertia plays a large role and allows for fairly accurate prediction. After rendering the frame they check head position again, update their prediction for head position at time of display, and move/warp the frame slightly to match. This does require rendering a slightly larger view.

I remember when Oculus cracked the 20 ms mark and got down into imperceptible lag, it was very exciting. They bragged at the time that their predictive models would let them get down to 0 ms eventually, but I'm not sure if they've hit that yet.