[ynniv]

It can easily be faked, using a technique that would destroy the poster's career. It's one thing to not do something to the letter, and another to commit blatant fraud. Most career academics would not burn their career for the lulz.

[stavros]

It's an anonymous video.

[throwawaymaths]

I think it would be tough for a lay scientist to go from 0 media expertise to faking it this quickly.