This video is fake, that has been established beyond doubt. But CGI, even "prosumer" CGI like this, is really getting better. Even at this level, people are relying on "hints" that a CGI transition has taken place - camera looks away, is obscured, or the picture is blurry.
Give it a couple of years and those distracting-from-transition tricks probably won't be necessary any more. Then what?
That's not the interesting part. Interesting is when you can do indistinguishable CGI replacement in real time. And then from there, when you can do it in the camera (or on a smartphone). Then what, indeed.
- How about broadcasting this image to the entire world?
- There is not point in that, images don't have value as evidence anymore, it'd just end up as an entertaining image that came from an unknown source at an opportune time.
Give it a couple of years and those distracting-from-transition tricks probably won't be necessary any more. Then what?