Restructuring society is an idea that for social and infrastructural change to work, it has to be done in a modular fashion. Human society cannot be wiped clean to start over. Civilization collapse has generally resulted either in more oppressive regimes largely based on the previous ones, or a return to small bands and villages and the abandonment of population centers. Society can be restructured in a way to survive a collapse, and promote adaptive radiation.
Change is happening all around us at an increasing pace. Survival means creating a social organizational pattern that can adapt to change and which includes all cultures.