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75 posts
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Does Forecasting Have Room At The Top?

Scott analyzes whether AI forecasters will plateau near human levels or keep improving, arguing that even non-miraculous progress could yield 4-12 percentage point improvements in prediction market accuracy.

acx
Aug 3, 2026 3,865 words 183 likes 171 comments Listen · 24 min Read Read

Links For July 2026 (Part 2)

Scott's monthly links roundup covering AI progress, the coming flood of philanthropic funding to effective altruism from AI companies, new research on persuasion and forecasting, and various scientific and cultural topics ranging from dementia prevention to Romanian politicians' embarrassing quotes.

acx
Jul 30, 2026 5,973 words 165 likes 333 comments Listen · 40 min Read Read

The AI Superforecasters Are Here

Scott examines the rise of AI superforecasters that now match or exceed top human forecasters, explores how they work and their current performance, and analyzes implications for decision-making, prediction markets, and the future role of AI opinions.

acx
Jul 2, 2026 5,984 words 583 likes 331 comments Listen · 42 min Read Read

The Metaculus Threat To Democracy Index

Scott examines the Metaculus Threat To Democracy Index, which uses crowdsourced forecasting to measure democratic health, discussing its advantages over traditional expert-based indices and its vulnerabilities to manipulation and selection bias.

acx
Jun 25, 2026 1,649 words 202 likes 424 comments Listen · 11 min Read Read

Mantic Monday: The Monkey's Paw Curls

Scott reviews the state of prediction markets after explosive growth, finding that most volume is degenerate sports gambling rather than useful forecasting, and proposes both technical solutions and two potential futures for the field.

acx
Jan 13, 2026 6,449 words 211 likes 247 comments Listen · 36 min Read Read

ACX/Metaculus Prediction Contest 2026

The 2026 ACX/Metaculus prediction contest is now open with a $10,000 prize pool, featuring reader-submitted questions, and Scott announces the winners of the best question submission contest.

acx
Dec 27, 2025 219 words 60 likes 24 comments Listen · 2 min Read Read

Suggest Questions For Metaculus/ACX Forecasting Contest

Scott asks readers to suggest questions for the 2026 ACX/Metaculus forecasting contest, with prizes for the top ten contributors and AI bots competing this year.

acx
Nov 14, 2025 259 words 49 likes 132 comments Listen · 2 min Read Read

Links For September 2025

Scott Alexander presents his monthly collection of interesting links and developments across technology, science, culture, and policy, with personal commentary on each item.

acx
Sep 4, 2025 8,283 words 233 likes 917 comments Listen · 45 min Read Read

OpenAI Nonprofit Buyout: Much More Than You Wanted To Know

Scott provides a detailed analysis of OpenAI's attempt to convert from nonprofit to for-profit status, including the legal challenges, competing offers, and implications for AI development.

acx
Mar 13, 2025 4,272 words 230 likes 312 comments Listen · 26 min Read Read

Links For February 2025

Scott shares 50 diverse links covering topics from AI developments to policy changes, with commentary on current events, research findings, and societal trends.

acx
Feb 27, 2025 6,840 words 212 likes 933 comments Listen · 43 min Read Read

Try The 2025 ACX/Metaculus Forecasting Contest

The 2025 ACX/Metaculus Forecasting Contest is now open, featuring 36 questions and a particular focus on comparing forecasting bots with human predictors.

acx
Jan 20, 2025 351 words 58 likes 41 comments Listen · 4 min Read Read

H5N1: Much More Than You Wanted To Know

Scott examines the likelihood and potential severity of an H5N1 bird flu pandemic, analyzing prediction markets and historical data to estimate a 5% chance of pandemic in the next year with most likely moderate severity.

acx
Jan 1, 2025 5,141 words 423 likes 222 comments Listen · 30 min Read Read

Congrats To Polymarket, But I Still Think They Were Mispriced

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.

acx
Nov 7, 2024 2,993 words 248 likes 647 comments Listen · 18 min Read Read

Mantic Monday: Judgment Day

The post examines the spectacle of US elections, analyzes recent developments in prediction markets, and discusses various election-related forecasts and their implications.

acx
Nov 5, 2024 3,744 words 220 likes 469 comments Listen · 26 min Read Read

Links for July 2024

Scott Alexander presents a diverse collection of 41 links and news items, covering topics from science and politics to history and technology, with brief commentaries and insights.

acx
Jul 24, 2024 3,173 words 180 likes 934 comments Listen · 20 min Read Read

Prediction Markets Suggest Replacing Biden

Scott Alexander examines prediction markets suggesting that replacing Biden as the Democratic nominee could significantly improve the party's chances in the 2024 election.

acx
Jul 2, 2024 4,750 words 186 likes 773 comments Listen · 24 min Read Read

Mantic Monday 5/13/24

Scott Alexander reviews recent developments in prediction markets and forecasting, including regulatory changes, platform pivots, and debates about the field's future.

acx
May 13, 2024 5,066 words 53 likes 144 comments Listen · 31 min Read Read

Who Predicted 2023?

Scott Alexander analyzes the results of his 2023 forecasting contest, comparing various prediction methods and individual forecasters.

acx
Mar 5, 2024 2,907 words 139 likes 171 comments Listen · 17 min Read Read

Sam Altman Wants $7 Trillion

Scott Alexander analyzes the astronomical costs and resources needed for future AI models, sparked by Sam Altman's reported $7 trillion fundraising goal.

acx
Feb 13, 2024 2,303 words 248 likes 416 comments Listen · 13 min Read Read

Mantic Monday 1/29/24

The post examines the performance of prediction markets in elections, current political forecasts, and various other prediction markets, while also discussing the challenges and potential of forecasting.

acx
Jan 30, 2024 2,887 words 77 likes 228 comments Listen · 19 min Read Read

Mantic Monday 12/4/23

The post discusses recent developments in prediction markets, including challenges in market design, updates to forecasting platforms, and current market predictions on various topics.

acx
Dec 5, 2023 4,770 words 68 likes 284 comments Listen · 29 min Read Read

In Continued Defense Of Effective Altruism

Scott Alexander defends effective altruism by highlighting its major accomplishments and arguing that its occasional missteps are outweighed by its positive impact on the world.

acx
Nov 28, 2023 4,266 words 439 likes 845 comments Listen · 19 min Read Read

Mantic Monday 7/31/23: Room Temperature Superforecaster

Scott Alexander discusses recent developments in prediction markets, including regulatory issues, new platforms, and current market probabilities on various topics.

acx
Aug 1, 2023 3,353 words 91 likes 185 comments Listen · 19 min Read Read

The Extinction Tournament

Scott Alexander analyzes the surprisingly low existential risk estimates from a recent forecasting tournament, particularly for AI risk, and explains why he only partially updates his own higher estimates.

acx
Jul 20, 2023 4,212 words 141 likes 475 comments Listen · 28 min Read Read

Mantic Monday 4/24/23

The post explores AI forecasting capabilities, compares prediction market performances, and provides updates on various ongoing predictions in technology and politics.

acx
Apr 25, 2023 1,989 words 60 likes 136 comments Listen · 13 min Read Read
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