The history of the own that is grasped on too small a scale and the foreign that is treated too badly reaches an end at the moment when a global co-immunity structure is born, with a respectful inclusion of individual cultures, particular interests and local solidarities. This structure would take on planetary dimensions at the moment when the earth spanned by networks and built over by foams, was conceived as the own, and the previously dominant exploitative excess as the foreign. With this turn, the concretely universal would become operational. The helpless whole is transformed into a unity capable of being protected. A romanticism of brotherliness is replaced by a cooperative logic. Humanity becomes a political concept. Its members are no longer travellers on the ship of fools that is abstract universalism, but workers on the consistently concrete and discrete project of a global immune design. Although communism was a conglomeration of a few correct ideas and many wrong ones, its reasonable part - the understanding that shared life interests of the highest order can only be realized within a horizon of universal co-operative asceticisms - will have to assert itself anew sooner or later. It presses for a macrostructure of global immunizations : co-immunism.