They had to change. The new structure is not determined by the formerly structures absolutely. The new structures are not determined absolutely. But they can't be impossible. What is possible - is determined by history and conditions.
Turbulent chaos allows self-regulation of human communities in a network of cooperative connections.
This reminds me of the problem if interpretation. I use methodically the system-theories. The argumentation must follow the qualities of real things, not a common schema. Society as complex of self-organizing systems 3.1. We have to distinguish something, but than see their interplaying again.