Could a simple weather sensor, tucked away on the tarmac at Roissy, have been enough to turn a few euros into nearly EUR30,000? On April 6, an abnormal temperature reading was recorded, a threshold was crossed, and on Polymarket, bets deemed nearly impossible suddenly became winners.
Somewhere on the tarmac of Paris-Charles de Gaulle, amidst the runways, terminals, and the incessant ballet of aircraft, a small weather probe quietly records the air temperature. Data is transmitted every minute to Météo-France, consulted by climate enthusiasts, used by official services, and then integrated into public databases.
This data is also used for takeoffs and landings, helping to determine which…
