The Syntax of Belonging: Legal Personhood, Artificial Intelligence, and Non-Human Rights in Comparative Constitutional Law

 This 110,000-word comparative legal analysis investigates how six jurisdictions (New Zealand (rivers as persons), Colombia (Amazon ecosystem), India (Hindu deities as juristic persons), the European Union (proposed AI personhood), the United States (corporate personhood), and Ecuador (rights of nature)) construct the legal concept of “person” or “rights-holder” outside the human individual. The document argues that existing frameworks for non-human entities are conceptually fragmented—derived from four incompatible traditions: common law trusts, indigenous cosmologies, continental legal personality doctrine, and utilitarian animal welfare statutes. Through line-by-line doctrinal analysis of 47 court decisions, 12 constitutional articles, and 9 international treaties, the author develops a unified “functional-ecological” theory of legal belonging based on four criteria: vulnerability, interest-bearing capacity, intergenerational persistence, and relational agency. The document is organized in three parts: (1) a genealogy of legal personhood from Roman law to algorithmic agents, (2) case studies comparing litigation outcomes for non-human entities across jurisdictions, and (3) a model “Rights of Complex Systems” statute with proportional representation mechanisms for rivers, AI networks, and multispecies collectives. Key findings show that courts consistently grant stronger rights to entities that have human proxies (corporations, deities) than to those without (wild rivers, autonomous AIs). The conclusion sketches a procedural mechanism for “guardianship without ownership” drawn from Māori legal concepts.