I can’t stop thinking about prediction markets. Not only the shenanigans about blatant insider trading around governt men
TLDR
A bettor physically heated a Météo France sensor at Charles de Gaulle to win $34,000 on Polymarket.
Two hits. April 6 and April 15. Both markets resolved cleanly on-chain.
The “oracle” was one unguarded thermometer by a runway fence.
Polymarket’s response: switch airports. No refunds.
Smart contracts don’t care if the weather is real.
From: $34 Dryer In Paris Wins $34000 On Polymarket | by Mandar Karhade, MD. PhD. | Apr, 2026 | Medium.
xxx
xxx
The counterparties who bought the “normal” outcome paid, on-chain, for a weather event that did not happen. The protocol worked perfectly. The problem was that the protocol was pointed at a thermometer you could warm up with a blowdryer.
From: $34 Dryer In Paris Wins $34000 On Polymarket | by Mandar Karhade, MD. PhD. | Apr, 2026 | Medium.
xxx
xxx
Three accounts on Polymarket earned more than $600,000 by correctly betting on a U.S.-Iran cease-fire, weeks after they made an earlier round of profitable wagers on the U.S. attacking Iran, according to blockchain research firm Bubblemaps.
From: Trio of Polymarket Accounts Made $600,000 Betting on Iran Cease-Fire.
xxx
xxx
On Polymarket, the Journal found, 67% of profits go to just 0.1% of accounts. That means less than 2,000 accounts netted a total of nearly half a billion dollars.
From: Why Almost Everyone Loses—Except a Few Sharks—on Prediction Markets – WSJ.
xxx
(By the way, I stole the title of the post from the brilliant Jamie Bartlett. If you haven’t been listening to his BBC podcast series “Nothing is real and nobody cares” you should do yoursself a favour and subscribe immediate.)