The Eye as a Boundary-Imposed Organ: Why Darwinian Gradualism Breaks Down

"Like Mohawk ironworkers on early skyscrapers, these papers are written without guardrails. The danger is not falling — it is realizing how high you already are.”The vertebrate eye cannot be assembled through smooth Darwinian increments without violating viability constraints. This paper shows that vision emerges only when boundary conditions permit a collapse into a minimally coherent structure. Using the Theory of Axiomatic Necessity (TNA), we formalize this transition as a threshold phenomenon rather than a gradual optimization process.. We demonstrate that vision cannot arise through continuous parameter tuning, as sub-threshold configurations fail to satisfy minimal coherence constraints. Instead, organ emergence corresponds to a boundary collapse into a stable attractor once environmental and energetic conditions cross a critical threshold. The eye is thus treated as a structurally inevitable solution under suitable boundary regimes, rather than as the endpoint of gradual optimization. This analysis situates biological complexity within general principles of open-system stability.