#USIsraelStrikesIranBTCPlunges When 90% Probability Turns Into 0%
On Polymarket, a trader holding a large position on “The US will NOT strike Iran” saw years of gains erased when the market settled 100% YES.
The trade was built at 70–90% probability — a range many consider safe.
But here’s the reality:
• High probability ≠ low risk
• Prediction markets are binary — settlement is final
• Tail risk doesn’t disappear, it waits
• Position size can turn edge into disaster
Geopolitical events don’t move gradually — they reprice instantly.
In markets, survival isn’t about chasing 90% odds.
It’s about