Brain-controlled

You can be certain that any VR company with sufficient funds (facebook) and a long term perspective (facebook) does look into BCI´s (Brain-Computer-Interfaces) with an army of Ph.D´s. This is the only way to get a negative, below zero (!) latency while also being able to track all user generated body movements. I do this too, but my only capital is aging brainpower and perspective.

this is a real science but it is still very much in its infancy. i wouldn't be surprised if, further down the track, we will be playing with brain-controlled interfaces lol.