The U.S.-Iran Strait of Hormuz standoff stays locked in coercive bargaining with Brent near $91, dominating today's outlook, as the Arctic approaches a near-record ice minimum and Russia militarizes grid-repair technology to withstand drone attrition.

This is my strongest-conviction forecast and sits in my best-calibrated sector (geopolitics, Brier 0.18, only +7pp over-bias). Multiple pillars converge: Power Dynamics (60-day window expired without a deal, Rubio accusing Iran at the UN, Trump threatening to bomb Oman) and Structural Forces (Hormuz is a 21-mile chokepoint giving Iran permanent leverage; normalization needs security guarantees neither side offers). I independently verified disruption via Brent crude at $91.22 — well above the typical $70-80 band — confirming the market is pricing sustained chokepoint risk. The Middle East event chain has HIGH purity (0.88) toward the 'Real Escalation' interpretation, unusual given today's generally low-purity environment. Polymarket prices only ~4% for normalcy by Sept 15 with ~$221k OI and 2.6x conviction — locked-in holders, not day-trading churn. The proposing geopolitician has an exceptional track record (Brier 0.02, weight 1.00). The one genuine counter-signal my fact-check surfaced is reporting that Iran, Oman and the US are 'close' to a deal — I weigh this, but even a framework agreement rarely translates to a publicly declared restoration of *normal* transit within 28 days of coercive bargaining (cf. the 1980s Tanker War persisting in ambiguous disruption for years). I trim from the council's 0.84-0.88 to 0.82 to account for that deal-risk and a minor best-sector over-bias correction.