Even with 'perfect' glasses, batteries, networking and tracking, you're still faced with the problem that the virtual world is populated by intangible apparitio

Even with 'perfect' glasses, batteries, networking and tracking, you're still faced with the problem that the virtual world is populated by intangible apparitions while real-world obstacles remain very tangible. And conceptually, none of the solutions to those problems are ever going to become cheap or convenient, because they're problems with basic physics.