One can go from one town on earth to another in less than a day. Trade is no longer concerned with bulky staple commodities, but with artistic or technical creations, data held in databases, the programming of future achievements. It is possible to get in touch with anyone immediately and everywhere, by sound or image. The new technical system develops up to a level of saturation of the human mind. Individuals have to protect themselves against communication.
Mass education teaches how to navigate in a sea of knowledge.
It is therefore at stake during battle. The object of ownership, it is passed on to descendants. The feudal hierarchy, a military caste, is the protector of the land, autarchic guarantor of security. Survival depends on production, supplies and outlets. This sphere is unstable.