Gene-Social Dynamics Model (GSDM): The Non-Linear Physical Basis of Civilization Evolution

The Gene-Social Dynamics Model (GSDM) is a unified non-linear dynamic system that treats human civilization as a physical phenomenon, overturning institutional determinism. The model's core premise is that social stability is a byproduct of genes maintaining an "Inert State" when "Environmental Satisficing" is high. GSDM rigorously proves the existence of Saddle-Node Bifurcation and Bistability structures in the social system, reproducing the irreversibility of civilizational collapse (Hysteresis Loop) through numerical simulation. This provides a mathematical basis for the precise calculation and prediction of social instability, distinguishing between the two asymmetric risks driven by underlying survival crises and top-level infinite greed.