Scorecard
Broad regional escalation
Assigned 7% through 31 August. It became the baseline in July, so the old branch was retired rather than stretched to fit.
Ceasefire and degraded deal
The top two branches described the spring and early-summer trajectory, but renewed escalation later superseded them.
Hormuz service fees
The fee mechanism entered policy and implementation talks. Durable acceptance by navies and major shippers remains open.
Escalation timeline
The Twelve-Day War
Direct Israel–Iran fighting, joined by U.S. strikes on Iranian nuclear facilities, ended in a ceasefire after twelve days. This became the immediate background for the later forecast work—not a prediction made by it.
Direct Iran–U.S.–Israel war
Coordinated U.S. and Israeli strikes moved the conflict into direct interstate war. The 4 March note mapped five pathways: regional system collapse, Iranian regime crisis, prolonged regional proxy war, short contained war, and negotiated freeze.
The note explicitly called the probabilities rough and said they were not forecasts. It therefore supplies model history, not a scored prediction.
First scored scenario map
Together, the two leading branches held 60–70% of the forecast mass. Kharg seizure, full energy war, and regime change remained hawkish tails. The logic emphasized visible economic and political costs over maximal doctrinal goals.
Resolution: temporarily validated by the ceasefire-and-bargaining trajectory; later superseded when regional escalation resumed. The tail cases did not occur in this forecast window.
Hormuz becomes a priced service
The prediction was that Iran would convert control and risk in the Strait of Hormuz into a transit or service-fee mechanism, with Oman providing an administrable channel.
Resolution: substantially validated at the policy-design stage. Iran publicly demanded variable fees and Oman discussed a service-fee structure. The stronger claim—that major shippers and the U.S. Navy will accept the precedent—is unresolved.
From military campaign to system shock
The working assessment described a shaky ceasefire, a severe fall in Hormuz traffic, continuing Iranian economic pressure, and an unresolved U.S.–Iran deadlock. The model’s emphasis shifted from battlefield exchanges to system coupling: shipping, energy, inflation, coalition politics, and domestic tolerance could outlast the campaign itself.
Coercive equilibrium remained the base case
The central expectation was an unstable arrangement in which neither side obtained a final settlement but both retained leverage. That judgment underweighted how quickly pressure across shipping routes and regional actors could reconnect the theaters.
Broad regional conflict became the starting condition
Recurring U.S. strikes, Iranian attacks on shipping and U.S. regional positions, falling Hormuz traffic, and renewed pressure near Bab el-Mandeb meant “broad regional escalation” was no longer a possible outcome. It was the observed baseline.
The 7% branch is recorded as a miss. A new tree asks what this broader conflict produces next.
Next-stage forecast
Forecast horizon: 31 October 2026. The first reset was 30 / 32 / 14 / 9 / 8 / 7. A later thread update moved the distribution below. The retrieved record preserved the revised numbers but not the full change rationale, so that provenance gap is not filled retrospectively.
What would move the forecast?
Armed armistice
Three to five strike-free days; routine tanker passages; technical maritime talks; U.S. framing of strikes as completed punishment; Iran separating Hormuz demands; an IAEA-access formula.
Prolonged attrition
Recurring strike cycles and shipping interruptions without a decisive loss of capability or a durable negotiating process.
U.S.-favored settlement
Material loss of Iranian missile or maritime capacity combined with sustained allied pressure on Tehran.
Iran-favored settlement
U.S. casualties, oil prices, and domestic political pressure become strong enough to drive withdrawal or major concessions.
Regime fracture
Mojtaba Khamenei’s absence, contradictory command orders, defections, or visible loss of centralized control.
Major escalation
Territorial seizure, new nuclear-site raids, Bab el-Mandeb closure, combat with an outside navy, or an attempted ground operation.
What the model learned
- Targets generate leverage. Iran was not passive; this produced the “and the meal fights back” correction.
- Middle powers can become broker nodes. Oman, Qatar, Pakistan, and others matter when principals need an off-ramp neither can propose directly.
- Decision phases change lens weights. Doctrine and interests shape planning; whim can dominate commitment; distributed costs dominate consequence management.
- Noise needs a discount. Public claims of an imminent deal should weigh less than costly signals, resource movements, personnel changes, and technical negotiations.