This work reports an observational study of a deterministic convergence system under monotonically escalating structured perturbation within a fixed operational environment. The analysis is focused on the pre-collapse region, where degradation may be observed without full satisfaction of collapse criteria. Under the examined conditions, the system exhibits a hierarchical degradation of operational gates as perturbation increases, while preserving valid outcomes throughout the tested envelope. The reported behavior does not indicate invariance, immunity, or absence of stress effects. Rather, selected operational indicators weaken in an ordered manner as perturbation escalates. However, this weakening does not coincide with full collapse under the predefined evaluation logic. The observations therefore distinguish degradation, gate breach, and collapse as non-equivalent operational conditions, rather than treating them as interchangeable outcomes of stress. The present work is limited strictly to the tested conditions and does not propose any theoretical mechanism, physical interpretation, or universal claim. Its purpose is to define and document an operational boundary region in which structured pre-collapse degradation is observed while outcome integrity remains preserved within the tested envelope.
Georgios Roussinos (Sun,) studied this question.