BRUSSELS — Dispatch from a probable future: one European nation packs its diplomatic bags before the decade closes, and the continent endures a second bruising rupture it swore would never come. Prediction markets, however, counsel against panic — Kalshi currently prices this outcome at a restrained 16%, meaning the odds still favor European solidarity holding the line through 2030.

The stakes require no elaboration for anyone who lived through Brexit's long, grinding aftermath. A second departure would rattle the euro, embolden nationalist movements from Budapest to Rome, and hand Brussels a crisis of legitimacy it may not survive intact. Market consensus at 16% suggests the threat is real enough to price but not probable enough to bet the house on — the diplomatic equivalent of a slow leak rather than a blowout.

Should Brussels demonstrate meaningful reform on sovereignty and economic grievances, traders expect these odds to fall sharply. Conversely, a deepening recession or a contested election in a Eurosceptic-leaning state could send that figure climbing in a hurry.