Polymarket, the world's largest prediction platform built on the blockchain, has recently become the focus again due to the soaring amount of bets on the NBA Finals.As of March 17, nearly $260 million has been invested in who can win the NBA championship trophy in 2026.The Oklahoma City Thunder leads the way with a 38% probability! Polymarket is different from traditional sports platforms.It is a decentralized prediction market where users use USDC (a stable currency) to place bets on the outcome of various future events, such as from elections to weather, from Oscars to NBA championships. The key difference is this: the price here is the probability.If the price of the "Yes" token for the Thunder to win the championship is $0.38, it means that the market believes that the Thunder has a 38% probability of winning the championship.Prices fluctuate in real time, reflecting the collective game of all participants.It also means that there is no cost to shout "Thunder Championship" on Twitter, but if you really think so on Polymarket, you have to use real money to "vote" on the platform for future events. Therefore, the betting price for a certain event on Polymarket is not set by one person, but is the result of the game between buyers and sellers.The Thunder's 38% probability means: at the current price, the people who are willing to buy "Thunder to win the championship" and the people who are willing to sell have reached a balance. If someone thinks 38% is undervalued, they will buy it, pushing the price up.If someone thinks it is overvalued, they will sell (or go short) to drive the price down.The final price is the quantitative expression of market consensus.