I'd throw in 2 more, power/heat and weight. However, the resolution/refresh-rate needed for immersive VR/MR is not quite a solved problem. If you assume someth

I'd throw in 2 more, power/heat and weight. However, the resolution/refresh-rate needed for immersive VR/MR is not quite a solved problem. If you assume something like 100deg horizontal and vertical for each eye and something like retina (not screen door or blurry) 40-60pix/deg resolution, you're looking at 5k x 5k per eye at 120-180Hz for 2 eyes. You can't do that over a single DP 2.0 link, and it would be too power hungry anyway. That leads to a requirement for fast eye-tracking and foveal rendering (only rapidly refresh where you're looking in high resolution)... and gains you ~10x reduction in bandwidth/power. Then you get to directly monitor the user's attention, build a DL model of their attention, optimize it for maximum interaction, and sell the model to the highest bidder.