I really don't see why you hope for that since, as you point out, once deepfakes are good enough (which might already be the case) we can't even trust our own eyes anymore.
Plato's cave allegory is going to be a very real, practical concern for people in a few decades. There won't be any record, any evidence that couldn't trivially be falsified at a large scale. You can have AIs generate serious-looking thesis written by serious-looking people with serious-looking credentials from a serious-looking university in a real-looking city and all of it be faked at scale. Terrifying indeed.