Universal Four-Law Framework for Fusion Reactor Development

Abstract Executive Summary (for Decision-Makers) Nuclear fusion development faces persistent challenges not because of missing physical equations, but because fusion reactors are extreme, balance-critical systems composed of tightly interconnected physical, computational, and human decision nodes. This paper introduces a Four Universal Law framework—Cause–Effect/Defect-Free Systems, Balance in Nature, Feedback Regulation, and Universal Interconnected Nodes—as a governing architecture for fusion reactor design, control, safety, artificial intelligence (AI), and program governance. The framework demonstrates that instability, plasma disruptions, and catastrophic failures are manifestations of violated balance and unmanaged node interconnections. By embedding these laws into reactor control philosophy, AI plasma regulation, safety shutdown logic, and human governance, fusion programs can reduce cascading failures and improve the feasibility of sustained, commercial fusion power. The paper is intended for scientists, engineers, policymakers, and AI developers involved in complex, high-risk technologies.