Biological Individuality as Executed Closure: Why No Two Organisms Are Identical

Biological individuality is commonly attributed to environmental variation, stochastic development, or imperfect replication. This work provides a closure-based explanation of biological non-identity within the ψ₀–OCM. Biological growth is shown to be the execution of a stabilized closure attractor along an irreversible trajectory rather than convergence to a unique state. Branching and geometry arise only as downstream encodings of this execution. Individuality follows necessarily as the preserved history of closure under constraint, without invoking randomness, teleology, or additional generative principles.