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Why I Reject the Comparison of Metaculus to Prediction Markets | by Metaculus | Medium

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Metaculus is not a prediction market. Metaculus and prediction markets both aggregate users’ forecasts, and both reward users for accurately anticipating the future. But the mechanism for doing so says a lot about the values of each. The purpose of markets is to determine price, and participants try to maximize profits. The purpose of science is to improve our understanding of the world, and participants are motivated to find the truth. Prediction markets conflate the two missions and motivations, whereas Metaculus is a scientific platform specifically designed to maximize epistemic value, not monetary value. In prediction markets, participants buy and sell contracts that pay out based on the outcome of a future event. They place bets, just as you would at a casino, and the rewards are financial and zero-sum. You win money that someone else loses. The most generous interpretation of this arrangement is that bettors produce more accurate forecasts because they have “skin in the game.” B

Why I Reject the Comparison of Metaculus to Prediction Markets Metaculus 6 min read · Feb 24, 2023 -- 1 Listen Share Metaculus is not a prediction market. Metaculus and prediction markets both aggregate users’ forecasts, and both reward users for accurately anticipating the future. But the mechanism for doing so says a lot about the values of each. The purpose of markets is to determine price, and participants try to maximize profits. The purpose of science is to improve our understanding of the world, and participants are motivated to find the truth. Prediction markets conflate the two missio

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