Comment Re:I agree (Score 1) 435
Precise control of photons and force fields. The ground can be made to act like a tread mill and you don't even know it because all the other fields move like you would expect.
A little bit different but there is a video floating around at a university experimenting with VR. They were working on giving the allusion that you are walking on a straight path but they play with your visuals just enough that they can get you to walk in circles, Was a fairly large room though.