Pope Leo recently wrote an encyclical, “Magnifica Humanitas”, saying that the tower of Babel is the wrong way to build technology. In that spirit, we must disarm AI. Instead, each of us builds one small section of a shared wall of Jerusalem — he is the Pope, after all. Each community rebuilds the wall in its own image while keeping a common image in mind. The wall sections interoperate. Even if each looks different, together they form common knowledge.