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Tag: Polymarket

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8 posts found
Jan 20, 2025
acx
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3 min 329 words 42 comments 55 likes podcast (4 min)
The 2025 ACX/Metaculus Forecasting Contest is now open, featuring 36 questions and a particular focus on comparing forecasting bots with human predictors. Longer summary
Scott Alexander announces the opening of the 2025 ACX/Metaculus Forecasting Contest, although the 2024 results are pending due to complications. He mentions hoping to compare Metaculus with Polymarket but couldn't due to recent events including FBI raids. Scott expresses particular interest in seeing how new forecasting bots will perform against top human forecasters in this year's contest, which includes 36 questions and offers $10,000 in prizes. Shorter summary
Nov 07, 2024
acx
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20 min 2,985 words 698 comments 242 likes podcast (18 min)
Scott Alexander praises Polymarket's election success but argues their Trump odds were mispriced, explaining why Trump's win doesn't significantly validate their numbers over other forecasters. Longer summary
Scott Alexander congratulates Polymarket for their success during the recent election, but argues that their Trump shares were mispriced by about ten cents. He uses Bayes' Theorem to explain why Trump's victory doesn't significantly vindicate Polymarket's numbers. Scott compares the situation to non-money forecasters like Metaculus versus real-money markets like Polymarket, explaining why he initially trusted the former more. He discusses the impact of a large bettor named Theo on Polymarket's odds and addresses several objections to his argument. Scott concludes that while prediction markets are valuable, they can sometimes fail and require critical thinking. Shorter summary
Nov 05, 2024
acx
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24 min 3,718 words 517 comments 216 likes podcast (26 min)
The post examines the spectacle of US elections, analyzes recent developments in prediction markets, and discusses various election-related forecasts and their implications. Longer summary
This post discusses the intense atmosphere surrounding Election Day in the United States, comparing it to historical spectacles and highlighting the emotional and psychological impact on the population. It then delves into prediction markets and forecasting, particularly focusing on recent events in Polymarket where a large bet by a single individual caused significant market movements. The post also covers legal developments regarding prediction markets, discusses various election-related predictions, and concludes with a poetic reflection on Election Day. Shorter summary
Sep 17, 2024
acx
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17 min 2,607 words 170 comments 78 likes podcast (18 min)
Scott examines a new AI forecaster, discusses Polymarket's success, and reviews recent developments in prediction markets and forecasting. Longer summary
This post discusses recent developments in AI forecasting and prediction markets. It starts by examining FiveThirtyNine, a new AI forecaster claiming to be superintelligent, but finds its performance questionable. The post then briefly mentions r/MarkMyWords, a subreddit for bold predictions. It goes on to discuss Polymarket's recent success, particularly in betting on the 2024 US presidential election. The post concludes with a roundup of interesting prediction markets and forecasting-related news, including political betting controversies in the UK and updates on the Kalshi vs. CFTC legal battle. Shorter summary
Mar 14, 2022
acx
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16 min 2,440 words 203 comments 54 likes podcast (23 min)
Scott analyzes Ukraine prediction markets, nuclear war risk forecasts, and compares forecasters to experts, along with various updates on prediction platforms. Longer summary
This post discusses recent changes in Ukraine-related prediction markets, analyzes the seemingly monotonic decrease in probabilities of Russian success, explores nuclear war risk forecasts, and compares the performance of forecasters vs. domain experts. Scott also covers various short updates on prediction markets and forecasting platforms. Shorter summary
Feb 08, 2022
acx
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2 min 231 words 12 comments 15 likes podcast (3 min)
Scott offers corrections about Polymarket's status and updates on the 2022 prediction contest, including calls for collaboration and ideas. Longer summary
Scott Alexander provides two corrections and updates to previous posts. First, he clarifies that Polymarket is still operational, offering real-money markets outside the US and working on a US-compliant product. Second, he reminds readers about the 2022 prediction contest entry deadline and shares a message from the contest organizers about potential collaborations with prediction markets and ideas for using the contest data. Shorter summary
Feb 07, 2022
acx
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19 min 2,918 words 453 comments 103 likes podcast (20 min)
Scott examines the recent crackdown on Polymarket, critiques US policy on prediction markets, and discusses the future and potential of both prediction markets and cryptocurrency. Longer summary
Scott Alexander discusses the recent $1.4 million fine imposed on Polymarket by the CFTC and its implications for prediction markets. He critiques the US government's approach to prediction markets, arguing it hinders better decision-making. The post explores the potential of prediction markets, what's needed for their success, and the challenges they face. It also touches on the broader implications for cryptocurrency and its original vision of creating censorship-resistant financial products. Shorter summary
Jun 22, 2021
acx
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10 min 1,431 words 164 comments 51 likes podcast (15 min)
Scott discusses various prediction markets and forecasting topics, including Metaculus predictions, Polymarket vs PredictIt, a study on forecasting accuracy, and the need for more precise inflation predictions from experts. Longer summary
This post covers various prediction markets and forecasting topics. It starts with Metaculus predictions on Puerto Rico statehood, Jeff Bezos' potential investment in anti-aging, crypto site defaults, and the population of Prospera. The author then discusses Polymarket, comparing its liquidity to PredictIt for the NYC mayoral race. The post also analyzes a study on forecasting accuracy from PredictionBook, showing that more experienced predictors perform better and that longer-term predictions are often more accurate. Finally, the author addresses the current debate on inflation predictions, calling for more precise and accountable forecasts from economists and pundits. Shorter summary