Illich's term for the process by which an institution implants in the population the belief that the activity it controls cannot be performed without it—the deepest form of capture, operating not on behavior but on what people believe is possible.
Institutionalization of values was Illich's name for the process by which institutions achieve cultural dominance over the domains they claim to serve. The dominance is not commercial—it cannot be broken by competition. It operates at the level of what people believe is possible. The school teaches that learning without school is not real learning. The hospital teaches that health without medical supervision is negligence. The car teaches that mobility without an automobile is not mobility at all. Once these beliefs are established, the institution becomes structurally unassailable, because the people it has captured defend it not as an imposition but as a necessity. The prisoner guards the prison. This is the deepest form of institutional capture, because it operates not on external behavior but on the internal categories through which people interpret their own needs and capabilities.