CoinDesk Market News, on April 23, Vitalik commented on the wind machine cheating case on Polymarket, saying, “For this kind of incident, it should basically be mandatory to require the use of the median of at least three (or even more) independent sources.” Previously, it was reported that a user used a wind machine to artificially change data from the Paris weather collection terminal, thereby manipulating the event outcome and earning a profit of $34,000.