The Lawof Entropy Increase in Complex Systems

This paper proposes a social-order evolution model based on the Second Law of Thermodynamics, from individual resilience to civilizational cycles. It defines "individual entropy" as the pressure in balancing physiological and psychological coherence, viewing humans as dissipative structures. Social stability depends on alignment between the "entropy-suppressing group" and societal needs; misalignment causes systemic instability. It distinguishes "genuine" (need-resonant) and "pseudo" (coercion-based) low-entropy orders. Key formulas capture trend dynamics, integrating classical theories via individual entropy. Historical cases (e.g., Athenian democracy) illustrate explanatory power.