What if catastrophic floods paralyse the Rhine and Danube?
The clean read is the Rhine: low/disrupted barge navigation forces partial-load surcharges on diesel, coal and chemical feedstocks into German industry — a logistics-cost shock, not a copper trade. Rhymes with the Aug-2022 Rhine low-water episode that crimped BASF/Ludwigshafen and German fuel barging. The modeled lone Freeport-copper move is misrouted; transmission is intra-European industrial logistics and German producer margins, with European gas/power as the salient input.
Every number ships with its receipt — the odds, the range, the precedents, and a public grade at Reality Check. The statistical machinery that produces it is proprietary.
The butterfly cascade
How this trigger trickles across markets, left → right — the root shock, its first‑order moves, then the ripple effects. Drag any node; tap a market for its real price history.
Resolution timeline — how this probability is moving
Our model's odds (electric blue) over time vs the market's (Polymarket, amber), from the past toward the 0–6 months horizon. Each dot is a real macro event that nudged the probability — green pushed it up, red pushed it down. Tap a dot for the source. Loading the probability audit trail…
What it would mean
If this plays out, it is a mixed shock. Catastrophic Central European flooding paralyzes Rhine barge traffic and chemical plants, choking industrial logistics for months. The trigger decomposes into signed root‑shocks — Industrial demand ▼ · European energy ▲ · Diesel ▲ — which propagate through our causal graph to the markets below.