Each mode specifies how source geometry (Σ), selection structure (Ω),
and stabilizing dynamics (τ) are allowed to interact.
No outcomes or expectations are implied.
Mode A — Fixed Ω Background
Σ → Ω → τ
τ evolves on a fixed Ω geometry.
Ω does not respond to τ.
Demonstrates: Layer-respecting dynamics (τ admissible, Ω stationary, Joint: PASS)
Classical background
Mode B — Structurally Non-Stationary Ω
Σ → Ω ↔ τ
Ω and τ evolve simultaneously with mutual feedback.
Tests whether τ can remain admissible when Ω becomes structurally unstable.
Demonstrates: τ survives but Ω coherence fails (τ admissible, Ω non-stationary, Joint: FAIL)
Non-stationary Ω / Recursive coupling
Mode C — Semiclassical Backreaction
Σ → Ω ⇢ τ
τ evolves within Ω.
Ω responds slowly via accumulated τ stress.
Demonstrates: τ survives but Ω coherence fails via stress accumulation (Joint: FAIL)
Mediated coupling
Mode D — Direct Layer Violation
Σ → τ → Ω
τ rules are applied directly to Ω
without mediation or selection hierarchy.
Demonstrates: True layer violation (everything collapses, Joint: FAIL)
Boundary stress test