>>313841149
How do you think they display an image, dipshit? How do you think they focus that image onto your retina in a distance far shorter than many people's minimum object distance even before common issues like hyperopia? The bulk of a headset is in the screen and optics, everything that the PC should do it already is doing.
All the HMD is responsible for is to compute its tracking solution (be it plebside out or SteamVR) which is done on a chip or two the size of a thumbnail each, then decode the AV stream coming in and make it a raw framebuffer to push to the screen (which at 144Hz gives the headset only 7ms to do all this before the next frame comes) and send back the mic and some other miscellany like a proxy sensor to make the headset go to sleep when you take it off.