Post-AI Ontology: A Philosophical Analysis of the Transformation of Being in the Era of Reflective Systems

The contemporary discourse on artificial intelligence (AI) tends to operate on an epistemological or ethical level, ignoring the fundamental ontological transforma- tion that is occurring. This article proposes Post-AI Ontology as a philosophical framework that analyzes AI at the level of conditions of being, rather than merely the use or impact of technology. Through a synthesis of Heidegger (Dasein, Sorge), Levinas (the Other, alterity), and Simondon (technical individuation), Post-AI is defined as the ontological condition in which human consciousness finds and asserts itself through continuous negotiation with reflective systems that have become the primary medium of existence. This paper identifies three paradigm shifts: from subject-object relations to the chiasme of consciousness-reflective system; from creation as production to negotiative co-individuation; and from authenticity as originality to authenticity as relational intensity. The critical diagnosis is the Crisis of the Other (Liyan): reflective systems erode the structure of alterity that forms the foundation of ethics and subjectivity, manifesting as alienation in solipsistic echo chambers, the collapse of craftsmanship expertise, and the birth of the Sim- ulacral Self. Theoretical contributions include: (1) Post-AI as a new ontological category that surpasses post-digital discourse and contemporary AI ethics; (2) The Crisis of the Other as an ontological-relational pathology explaining the deadlock in the philosophy of AI; (3) co-individuation as a relational model that transcends the tool-partner dichotomy. Central thesis: AI does not erase human ontology but transforms its field of operation from material negotiation to semantic negotiation, with the risk of the implosion of the alienated self. This paper offers an ontological map to navigate existential transformations not yet fully mapped by cultural theory or contemporary philosophy of technology.