Multidimensional Informational Realism: Axiomatic Foundations, Negentropic Ethics, and Adaptive Metaphysics for Post-Human Meta-Civilizations

Traditional metaphysics, rooted in classical ontology, substance dualism, and anthropocentric observation, fails to provide an epistemic framework for post-singular, multidimensional informational eras. This paper introduces Multidimensional Informational Realism (Hyperinfo Metaphysics), a unified philosophical architecture that establishes information as the primordial ontic substrate (It-from-Bit-from-Qubit). We formalize five fundamental axioms governing informational reality, multi-layered downward causation, and participatory observer-networks. We derive formal theorems establishing the informationalmetric of freedom, negentropic complexity ethics, and the productivity of systemic paradoxes. Finally, we propose an operational adaptive metaphysical engine that transforms philosophy from a static doctrine into a self-correcting cybernetic system parameterized by empirical data.