As I mentioned, if a synthetic video looks just like Jensen Huang, nobody can tell the difference. The way you tell is by the digital signature of Jensen Huang. We must focus on provenance on the actor level, not the content level. We also understand that digital signatures can sometimes dox people. You are a journalist, and you work with your sources. Your source might be a whistleblower. They are understandably afraid that if they provide a full name in their digital signature, although they can authenticate to you, it also means they can get doxxed and persecuted if they are in an unfavorable situation in terms of power asymmetry.