This whitepaper presents a philosophical and architectural framework for understanding long-horizon failure in adaptive systems. It argues that many failures attributed to chaos, instability, or unpredictability arise from an inability to preserve semantic continuity and organizational identity across time. Rather than proposing algorithms or implementations, the work introduces an architectural worldview in which identity continuity, not local performance or optimization, is the primary invariant. It reframes chaos as semantic amnesia under temporal load, choice as a test of identity preservation, and survival as a pre-conscious structural constraint. The paper establishes conceptual foundations for what is termed Cybernetics 2.5™: a post-optimization paradigm for adaptive systems operating under prolonged uncertainty. The contribution is non-algorithmic and non-disclosing, focusing instead on architectural necessity and ontological limits of existing control, learning, and optimization paradigms.