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usonian

(25,962 posts)
Wed Apr 22, 2026, 10:49 PM 5 hrs ago

Why you should not wager. A hair dryer at a Paris airport broke Polymarket weather markets & made someone $34,000 richer

https://xcancel.com/aaronjmars/status/2047017251270734309
xcancel is a way to get tweets without using twitter/X
- polymarket was settling Paris temperature bets on a single Météo France sensor sitting near the Charles de Gaulle runway perimeter - basically unguarded

- the guy bought the long-shot outcome (like "22°C" when everyone expected 18°C) for pennies, since nobody thought it'd hit

- then he walked up to the probe and briefly heated the air around it with a portable heat source, spiking the reading just long enough to register as the daily max

- temperature snapped back to normal in minutes, the market resolved in his favor, and he cashed out - twice, on April 6 and April 15, before Météo France caught on and filed charges


There be sharks in those waters!
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Why you should not wager. A hair dryer at a Paris airport broke Polymarket weather markets & made someone $34,000 richer (Original Post) usonian 5 hrs ago OP
Instrument of crime: John1956PA 2 hrs ago #1
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