There's a phrase I often hear: “VR, XR , it's all the same thing, right?” That’s a bit like saying “cheese and cottage cheese, same thing.” They sound similar, but they’re not. The truth is that VR  is only one part of a much broader umbrella called XR , Extended Reality .XR includes all the “realities” we know: VR, AR, MR , but also two earlier eras, CR  ( Classic Reality ), the age of stationary computers, and PR  ( Portable Reality ), the age of mobile devices. We all alr