> Because it uses face rec, you can ONLY show your face, and if you disappear from view your audio will stop after a while, to avoid situations like when you need to go the the restroom but forget to mute.

Of course, the real killer app for Zoom calls is the opposite of this: some kind of deep fakery that makes it seem we're there when we're not.

Yet as it is, this is a fantastic idea. It's surprising video codecs deal so little with the nature of the images (AFAIK) and try to be generalists.

As this demonstrates, not all pixels are created equal.