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You could build cameras that crypto-graphically sign photos individually. And that capture a lightfield at least partially (maybe possible with autofocus pixels already), then you know someone isn’t just capturing a monitor. This could be implemented into reputable smartphones too. If someone cracks (physically) the camera sensor/chip assembly, the certificate can be revoked after it’s been found out.
Then you could design an image format where any editing step (like cropping, color mapping) is reversible and signed too.
Most of this is because we don’t have a free press anymore. There are only 3 international newspapers and they have all been infiltrated or captured.
i fear that by the time those are implemented, they will be cracked.
Any fake picture could be traced to the individual camera and it’s registered owner, and the certificate revoked. It would be cumbersome and not foolproof, but it would reduce fake pictures and make it possible to verify photo and video evidence. A browser could then tag or even block any image in an article that hasn’t been signed.
My point is that it’s theoretically possible to avoid a “post-truth world”, although it is practically impossible to get done currently.
even if you were to do that.
at best, only some news can be verified.
but what about the past? if there are dozens of contradicting versions of history (including the actual history). all with their corresponding pictures of artifacts, documentation, literature… the history of and conspiracy theory will be as valid as any other, and might have as much evidence as the truth.
Fundamentally, web-archive or just signed hashes of existing documents to verify they haven’t been changed. Like this which the NED deleted. That also does require an institution dedicated to journalism or truthfulness or education.
The main problem is the immense power imbalance. The rich get richer has this inevitable outcome. We need a purge and restore a democratic government. It’s more a physics problem than an ideological one, a question of quantity of energy and forces. They have corrupted a large part of the population in one way or another, but they haven’t convinced the majority that truth is bad.