Space-Phase (SP3) Mechanism Gaps and Testable Substrate Memory Effects Across Cosmic Scales

This paper presents a structured set of fifteen physical phenomena for which standardcosmological and astrophysical models lack explicit physical mechanisms, relying insteadon statistical, initial-condition, or emergent-field explanations. The Space-Phase (SP3)framework introduces a unified physical substrate with transport, saturation, and memoryproperties that naturally generate persistent structural corridors, anisotropies, andcompliance conditioning. For each case, we provide detailed explanatory captions, matchedvisual figures, and explicit measurable handles suitable for falsification and observationaltesting. Together, these cases form a coherent substrate-based alternative to purelystochastic or field-only descriptions, offering new testable predictions across cosmic,galactic, and planetary scales.