There is another (perhaps even more) important metric that directs transformation: changes in the energy rationale.

Human slavery was the rationale until we started using fossil fuels…:). "The [metabolic conversion] efficiency of the human-machine [20%] is the highest of the animal kingdom." the authors of In the Servitude of Power: Energy and Civilization, Débeir, Deléage and Hémery point out. It's the reason it appeared independently in every single civilization across the globe.

The evolution of societies is all about aggregate [thermodynamic] efficiency (Jeremy Rifkin), freeing up time (Joseph Tainter), creative fitting leading to health (Ian McHarg).

Rifkin points to three (infrastructural) parameters that help define its aggregate efficiency: communication, energy, transportation.

So it's going to be quite interesting to see what new rationale an all-electric, bio-based, digitized society is going to lead us towards.

What new spatial orientation? Urban, rural or something in-between? Economies of scale or scope, or both? Centralized power or more distributed? What Ideological State Apparatus (Althusser)/ system of governance will go with it? (I'm hoping something like https://www.ecogood.org/what-is-ecg/).

In short: super interesting times to be living in!