A counter point on premium VR headsets. They are teleportation devices. I've used every popular VR device, but one Vision Pro experience stood out - 'The Haleakala environment'[1] It was literally like being transported there. I know because I had been in that exact spot a few years before. I have a rich visual memory which served as reference, and no exaggeration, it felt like was there. I was immediately in tears.…
I realized the value of something like that but tweaked with different stories and contexts. I imagine elderly people being able to live a whole other life inside something like WOW instead of withering away alone as most people tend to do. You don't even need fancy AR hardware, though that wouldn't hurt and probably has better UX than banging on a keyboard.