Determine the best stuff to compress without losing engagement and you've got it. As others have said, faces probably matter a lot. It would be nice to have f

Determine the best stuff to compress without losing engagement and you've got it. As others have said, faces probably matter a lot. It would be nice to have face tracking through a bluetooth device or something, but direction of gaze with the right manual options (say, 5 gradients from smiling to frowning and a few other emotes) might be enough to start.