Polymarket

Polymarket is a decentralized prediction market platform where users can bet (using USDC) on the outcomes of future real-world events—everything from politics and economics to pop culture and weather. It runs primarily on the Polygon proof-of-stake layer-2 blockchain, which provides lower fees and faster transactions compared to Ethereum mainnet. The platform lets users buy shares in different outcomes; if you pick correctly you earn, if not you lose, making it a system that reflects collective probability assessments.