ATT Internal Terrain Assessment v2.1 — United States, Q4 2026

Complexity is arriving at the U.S. civic membrane faster than the membrane stack beneath it can metabolize it. The gap is widest at the federal executive and foreign-policy node, and narrowest at local government. [T3] This is a rate claim, not a level claim. v1 said capacity is "stronger than" coherence, but the two have no common scale. What can be compared is the speed of decay: material capacity is softening slowly while procedural legitimacy is at record lows. [T2] In the Addendum's terms, the country is in a push transition: contradiction the old structure cannot metabolize is building past its coherence capacity. Whether a push fragments or reconstitutes depends on whether declared attractors exist to receive it. [T3-A] Five observations carry the read: Federal trust is at a floor, and the floor is partisan. The executive is at 33% and the judiciary at 46%, both record lows. Republicans trust most federal entities at 70% or more; Democrats are in single digits for the executive. [T1] The national standing attractor has split in two, indexed to who holds power. Allied publics show the same structure: their view of the United States tracks their view of its president almost one-for-one (r = 0.90). Codex §20 predicts this: fields reorganize around a load-bearing apex operator. [T1 data, T3 reading] The war is the main source of complexity. The U.S.–Iran conflict began in late February. October 2026 is its most intense month of maritime attacks since March. Trust in the federal handling of international problems fell about 10 points in every party group. [T1] Inflation is an energy shock passing through. Headline CPI is 3.7%, core 2.6%. That couples the war field to the household field through fuel. [T1 data, T2 mechanism] Local membranes are holding, not gaining. Local government trust is 67%, inside its 1972–2026 range of 63–77%. Trust has not moved downward; it has been kept there while it collapsed above. [T1] Near-term test. The November 3 midterms and the battleground certification that follows are the nearest live test of procedural legitimacy, and they fall inside this read's window. Trajectory judgment. Extended Interstice (Scenario B) remains the most likely path, at 40%. Coercive recentralization (Scenario D, 15%) is the failure mode v1 missed; Codex §24 defines a geometric civilization as revealed rather than imposed, which makes D its explicit negation. Probabilities and the signals that separate the scenarios are in the Scenarios section. [T3]