[feanaro]

I appreciate what you're saying and I agree that it's very hard, but I think it may be too quick to chalk it up as being impossible.

In fact, things like making the room easier to read despite using a camera is exactly what I was talking about. It is definitely the case with today's systems where you simply have a camera on the lid of the laptop and display many individual images of people on the screen. This does look very unnatural.

For instance, one very distracting aspect of this is that it is impossible for two people to be looking into each other's eyes as they are communicating, since the image and the camera are not aligned. Solving this would at least make addressing a single person over a video call much more natural. Perhaps we could somehow place a camera behind the screen? Will volumetric display technology make it easier once it is more widespread?

And this is just one problem that we can identify. I'm sure there are many other subtle cues missing from a video call which could be identified and then hopefully fixed.