This work presents the third ψ-Retentive Ode within the ψ-Architecture Research School (2026), introducing a formal limit-law in which a neutrino strand and retained difference converge to a finite retention-node at the boundary of vanishing. The central expression — ₀^+ ₄ (), () = _ — is formulated as a proto-determinative invariant of pre-geometric physics. The Ode develops the conceptual and mathematical structure of retention, explores the emergence of form at the limit 0^+, and frames _ as a minimal node of persistence when both geometry and dynamics fall silent. Written in the Oxford scientific register, this text extends ψ-Architecture’s foundational direction in retention-based cosmology and pre-structural physics.
Logacheva Yulia (Sat,) studied this question.