This paper presents the first quantitative test of nuclear stability as finite-response closure in the Emergent Condensate Superfluid Medium (ECSM) framework. Building on a prior conceptual ECSM nuclear-stability paper, the study analyses 3386 IAEA LiveChart ground-state nuclides using a minimal response-closure feature set derived from proton number, neutron number, mirror imbalance, Coulomb burden, pairing parity, alpha-like closure, magic-number proximity, and response-saturation proxies. The model achieves held-out stable-vs-unstable accuracy of 0.7981 and ROC-AUC of 0.9206. It recovers the isotope-valley ridge, reproduces the neutron-compensation trend away from N=Z, identifies the tritium-to-helium-3 mirror-relaxation case, shows enhanced stable incidence for alpha-like and magic-number closure candidates, and recovers the expected iron-nickel binding-energy peak. The results support the ECSM interpretation that nuclear stability can be modelled as finite-response closure, while residuals identify particle-emission or split-open openness as the next required correction.
Adam Sheldrick (Wed,) studied this question.