With immortality, institutional knowledge doesn't have to go away. Everybody can know everything, and the specialist that has all the experience dies, then a ne

With immortality, institutional knowledge doesn't have to go away. Everybody can know everything, and the specialist that has all the experience dies, then a new one can just be selected, and the whole colony can pick up the slack until the new specialist is experienced enough to do it all himself. Everybody becomes T-shaped.