Briefly - and I’m doing a bit of spit balling here. VR creates an alternate sensorium without adequately blocking the competing natural sensorium. For example

Briefly - and I’m doing a bit of spit balling here. VR creates an alternate sensorium without adequately blocking the competing natural sensorium. For example - walking in VR without moving your feet causes competing proprioceptive sensations. Our feet give us important information regarding where we are in a 3D space. How should the brain interpret walking but not really walking? And flying/roller coaster should cause changes in the information provided by our otoliths of our inner ear. Instead we go down a roller coaster and expect a real physical change but otoliths are unmoved and there’s no actual sensation. It’s just confusing. Now as far as lag between head movement in reality and in virtual realm? That is another good example you bring up. It needs to be very close to perfect with as little lag as possible