Maybe a dumb idea, but I wonder if there's a future in cryptographically signing videos in order to prove provenance. I'm imagining a G7 meeting, for instance, where each participant signs the video before it's released. Future propagandists, in theory, wouldn't be able to alter the video without invalidating the keys. And public figures couldn't just use the "altered video" excuse as a get-out-of-jail free card.
It wouldn't solve any of the fundamental problems of trust, of course (namely, the issue of people cargo-culting a specific point of view and only trusting the people that reinforce it). But, it would at least allow people to opt out of sketchy "unsigned" videos showing up on their feeds.
I guess it would also allow people to get out of embarrassing situations by refusing to sign. But, maybe that's a good thing? We already have too much "gotchya" stuff that doesn't advance the discourse.
It wouldn't solve any of the fundamental problems of trust, of course (namely, the issue of people cargo-culting a specific point of view and only trusting the people that reinforce it). But, it would at least allow people to opt out of sketchy "unsigned" videos showing up on their feeds.
I guess it would also allow people to get out of embarrassing situations by refusing to sign. But, maybe that's a good thing? We already have too much "gotchya" stuff that doesn't advance the discourse.