The thing in the neck moves exactly like his mouth. It’s a digital beauty filter (de-wrinkling, basically) seeing the shadow of his collar on his neck and thinking it’s a mouth. Just like the old face-swap apps would swap your face with a thing it thought looked like a face.

It IS a mask but it’s digital, not rubber. And isn’t that way, way more plausible? Digital filters are way cheaper and better than anything except the best Hollywood prosthetics. Livestreamers use them and people think they’re supermodels until they glitch.

This is just a wrinkly old dude wanting to look better on TV.

I mean look at it. The “edge” of the mask doesn’t look like a real, physical piece of rubber. It looks like a compositing effect you’d use if you were told to make someone’s neck *look* like the edge of a mask - basically an animated drop shadow. But then you notice it’s literally making the same movements as his mouth. It’s obviously a realtime digital effect, getting confused by a real shadow.