This 💩 is 🍌🍌🍌, B-A-N-A-N-A-S: This Video-to-Video Synthesis tech apparently can take in one dance performance & apply it to a recording of another person to make her match the moves:
It can even semantically replace entire sections of a scene—e.g. backgrounds in a street scene:
Now please excuse me while I lie down for a bit, as my brain is broken.
[YouTube]