How will we evaluate truth in the future? It won't be by trusting videos. It will somehow go back to he-said she-said and figuring out who we can trust. But if different people trust totally different sources, then agreement about truths seems it will end up being limited to easily testable facts and predictions.
What is going to happen in a world where your comment could apply to anyone because such a video of unethical promises could be generated of anyone??