The printing press standardized reality. For a few centuries, a society generally agreed on a baseline set of facts, even if they disagreed on the interpretation of those facts.
The algorithm has shattered this. If you and I sit on the same couch and open our phones, we are looking into two entirely different universes. We are being served different news, different crises, different villains. It is impossible to have a democratic debate when we do not even share the same underlying reality. The greatest threat to society isn't misinformation; it's the fragmentation of truth itself.