Thou Shalt Not Cross: Ten Commandments as a Boundary Protocol for Modern Civilizations

This paper examines a contemporary criminal case in Japan as a lens through which to analyze the structural tension between religious ethics, capitalist norms, and the limitations of modern legal frameworks. While courts judge acts, societies tend to judge attributes, revealing a gap between legal rationality and cultural interpretation. This study argues that capitalism functions as a “godless shari’a,” a system of implicit commandments that regulate behavior without metaphysical grounding. The analysis further proposes that the Ten Commandments—specifically the injunctions against boundary violations—persist across Judaism, Christianity, Islam, and capitalist societies as shared ethical infrastructure. The legal system can punish actions but lacks mechanisms to adjudicate “misalignment,” or ethical drift across cultural frameworks. This paper concludes that modern societies require a “boundary protocol,” a shared ethical grammar based on universalized interpretations of ancient commandments, to prevent recurring cultural collisions in an increasingly interconnected world.