Try wearing progressive bifocals. I think you will find that the experience is very similar. You have this little window where you can see stuff, but it has v

Try wearing progressive bifocals. I think you will find that the experience is very similar. You have this little window where you can see stuff, but it has very small angle of visibility. In the top half you can focus out to infinity. In the bottom half you can focus up close. If you look in the wrong place, there is absolutely no way to bring what you are looking at into focus. For the vast majority of things, that means you have a single focal length (infinity) and you bring the thing into the visible part of your gaze by moving your head. The thing that is really strange is that within a few weeks of wearing progressive bifocals, everything just looks normal. Your brain compensates. Or to put it in a different way, your brain is always compensating so that while you think you have great vision, the reality is that your brain is paving over all of the badness. It really does an amazing job even with something as unbelievably bad as progressive bifocals. VR does not need to provide the same experience as reality (without glasses). It just needs to provide something good enough that the brain can be trained to pave over all the badness. I've only ever played with VR headsets at a store, but I can tell you that they are already better than my bifocals ;-)