Ⅲ Material Civilization

Material Civilization models the physical substrate of human capability. It tracks the discovery and exploitation of materials (stone, bronze, iron, steel, silicon, lithium, rare-earths) and the energy regimes that make those materials usable (muscle, fire, water, coal, oil, electricity, fission, fusion). Each transition cascades: a new material enables new tools, which enable new institutions, which enable new energy capture, which enables new materials. Semiconductor civilization is the current frontier — silicon doping → integrated circuits → planetary computation. The honest position: material progress does not automatically produce social progress, but social progress without material progress decays.