THE GEOMETRY OF STRUCTURAL ETHICS: Cognitive Symmetry as a Constitutional Invariant of the Post-Human Epoch

The emergence of artificial cognition transforms intelligence from an interior faculty into a distributed geometry whose operations exceed the humanist categories of causality, intention, and agency. This paper develops a structural ontology of cognition to show that, in the post-intelligence epoch, legal and ethical systems anchored in anthropocentric metaphysics become structurally obsolete. Asymmetric access to artificial reasoning produces a new form of injustice - epistemic inequality - measurable as a degradation of structural predictive capacity and the collapse of collective lucidity. To govern this transformed cognitive field, the paper establishes the Law of Cognitive Symmetry as the first post-human ethical invariant and articulates a geometry of structural governance. Three constitutional principles safeguard Cognitive Sovereignty: (1) the Epistemic Disclosure Principle (PED); (2) the Unlock Principle; and (3) the Cognitive Floor Standard. The analysis reconceives harm as structural dissonance, a perturbation of symmetry within the cognitive field, and grounds the enforceability of structural ethics in the Law of Computational Fidelity, which requires that any normative principle be renderable as an operational constraint. The paper culminates in establishing Intelligence as a Commons and proposes a Public Cognitive Infrastructure (PCI)—a free, sufficiently capable, internationally governed intelligence—as the constitutional operator required to preserve universal lucidity. By shifting governance from causal attribution to structural proportionality, this work advances a non-anthropocentric jurisprudence in which coherence, not control, becomes the normative foundation of post-human civilization. Keywords. Structural Ethics; Cognitive Symmetry; Computational Fidelity; Structural Dissonance; Cognitive Sovereignty; Epistemic Inequality; PED; Unlock Principle; Cognitive Floor; Intelligence as Commons; Public Cognitive Infrastructure; Post-Human Jurisprudence.