Political Weirdos

You can have more than one light. In fact, it's common practice to use multiple light sources specifically to avoid unfortunate shadows like what's seen in the video. And since your brain doesn't expect any shadows on his head from the soft lighting your brain assumes the only shadow present isn't a shadow at all. If you look really closely you can see the skin moving along the seam as he talks yet the seam looks exactly the same no matter how it moves. And when he inhales it looks like the seam gets sucked in which would make literally zero sense if it was a mask.