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58 posts found
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Apr 23, 2026
acx
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Links For April 2026

53 min • 8,070 words • 588 comments • 272 likes • podcast (47 min)
Scott Alexander's April 2026 links roundup covers diverse topics including Venn diagram complexity, flag desecration laws, AI developments, political analysis, scientific studies, and various cultural curiosities. Longer summary
This monthly links post compiles interesting articles, studies, and observations from across the internet in April 2026. Major themes include AI progress and policy (including discussions of AI alignment, capabilities, and regulation), political developments (Trump administration actions, election analysis), scientific findings (from evolutionary psychology to medical treatments), and various cultural oddities. Scott provides brief commentary on each link while noting that he hasn't independently verified all claims and that commenters typically find errors in a few links per post. Shorter summary
Feb 05, 2026
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Links For February 2026

48 min • 7,419 words • 660 comments • 255 likes • podcast (49 min)
A monthly collection of diverse links covering AI developments and regulation, COVID origins debates, healthcare policy, cultural phenomena, scientific research, and internet curiosities, maintaining Scott's characteristic blend of serious analysis and entertaining observations. Longer summary
Scott Alexander's February 2026 links collection covers a wide range of topics including AI developments, politics, science, culture, and internet phenomena. Major themes include updates on AI capabilities and regulation (with discussions of OpenAI, Anthropic, and various political machinations around AI policy), the ongoing COVID lab leak debate and related prediction markets, healthcare and drug development issues, cultural observations from around the world, and various scientific and academic findings. The post maintains Scott's characteristic style of jumping between serious policy discussions, academic research, internet curiosities, and cultural commentary, with particular attention to AI safety concerns, rationalist community topics, and interesting historical or linguistic oddities. Shorter summary
Jan 13, 2026
acx
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Mantic Monday: The Monkey's Paw Curls

42 min • 6,449 words • 247 comments • 211 likes • podcast (36 min)
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. Longer summary
Scott Alexander examines the current state of prediction markets after their recent explosion in popularity, noting that while volume has grown from millions to billions per month, most of it comes from sports betting rather than the epistemic improvement he'd hoped for. He explores several problems: markets aren't asking the most important questions society needs answered; resolution criteria disputes ("rulescucking") create controversy; and there are concerns about insider trading and manipulation. He proposes solutions including a novel approach to conditional markets and suggests two paths forward: either creating user-generated, subjectively-resolved real-money markets (the "Siskind Cube"), or accepting that prediction markets' main value may be as training data for AI forecasters that could make the markets themselves obsolete by late 2026. Shorter summary
Dec 10, 2025
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Links For December 2025

51 min • 7,776 words • 592 comments • 260 likes • podcast (52 min)
Scott's monthly roundup of interesting links covering AI policy developments, technology news, cultural observations, and scientific research from December 2025. Longer summary
This is Scott Alexander's monthly collection of links and commentary covering diverse topics. Major themes include AI policy battles (chip sales to China, regulation debates, political campaigns), startup news (Substrate fraud allegations, Tornyol mosquito drones), and scientific updates (COVID origins, Hitler's DNA, lactose intolerance). The post also covers cultural topics like the first millennial saint, Dimes Square commentary, and political polling about ideal Democratic candidates. Scott provides his characteristic mix of straightforward reporting, skeptical analysis, and occasional humor throughout the 53 linked items. Shorter summary
Oct 13, 2025
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ACX Grants Results 2025

32 min • 4,808 words • 266 comments • 196 likes • podcast (29 min)
Scott announces the results of the 2025 ACX Grants round, awarding $1.5 million to 42 projects out of 654 applications, covering areas from genetic engineering and disease prevention to AI safety and educational reform. Longer summary
Scott Alexander announces the results of the 2025 ACX Grants program, which received 654 applications and funded 42 projects across diverse areas including global health, AI safety, metascience, animal welfare, and development economics. The grants range from $5,000 to $150,000 and support initiatives like genetically engineered nutritious corn, screwworm eradication, lead-acid battery recycling programs, organ donation improvement, AI bias research, and various biosecurity and pandemic prevention projects. Scott thanks the funders, Manifund team, and numerous expert evaluators who helped assess applications, and notes that some projects remain in stealth mode. The post concludes with extensive credits to contributors and mentions that the next grants round will likely occur in late 2026 or early 2027. Shorter summary
Oct 03, 2025
acx
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Vote In The 2025 Non-Book Review Contest

2 min • 234 words • 136 comments • 58 likes
Scott opens voting for the 2025 Non-Book Review Contest finalists, listing all thirteen entries and providing a link to the ranked-choice voting form. Longer summary
Scott Alexander announces voting for the 2025 Non-Book Review Contest finalists, providing links to all thirteen finalist entries and the voting form. The post lists the diverse topics of the finalists, ranging from education and science to personal experiences and historical events. Voting will use ranked choice format where voters pick their top three choices, and closes on October 13. Shorter summary
Sep 04, 2025
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Links For September 2025

54 min • 8,283 words • 918 comments • 233 likes • podcast (45 min)
Scott Alexander presents his monthly collection of interesting links and developments across technology, science, culture, and policy, with personal commentary on each item. Longer summary
Scott Alexander shares a collection of 61 interesting links, spanning topics from AI development and scientific studies to cultural observations and policy discussions. The post covers diverse subjects including GPT-5's reception, genetic research, religious demographics, urban development, mental health studies, and various scientific discoveries. Scott provides commentary and analysis on many of these items, often connecting them to broader themes or offering his perspective on controversial issues. Shorter summary
Jul 08, 2025
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Now I Really Won That AI Bet

21 min • 3,191 words • 467 comments • 472 likes • podcast (16 min)
Scott Alexander shows how he won his 2022 bet about AI image generation capabilities, tracking the progress from early failures to complete success in 2025, using this to argue against AI skeptics. Longer summary
Scott Alexander describes the resolution of a bet he made in June 2022 about AI image generation capabilities. The bet claimed that by June 2025, AI would master image compositionality and be able to accurately generate specific complex scenes. The post shows the progression of AI image generation from 2022 to 2025, starting with early failures by DALL-E2, through various partial successes with Google Imagen and DALL-E3, and ending with ChatGPT 4o's complete success in May-June 2025. Scott uses this to argue against critics who claimed AI was just a 'stochastic parrot' that couldn't achieve true understanding, though he acknowledges some remaining limitations with very complex prompts. Shorter summary
Jun 18, 2025
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ACX Grants 1-3 Year Updates

83 min • 12,838 words • 169 comments • 124 likes • podcast (75 min)
Scott reviews updates from two cohorts of ACX Grants recipients (from 2021 and 2024), analyzing their progress and sharing lessons learned about what makes grants successful. Longer summary
Scott Alexander reviews progress updates from two cohorts of ACX Grants recipients - the first cohort from 2021 (after 3 years) and the second from 2024 (after 1 year). The post methodically goes through each grant's status, with many showing significant progress in areas like AI safety advocacy, animal welfare, scientific research, and political lobbying. Scott then analyzes patterns in what made grants successful, finding that lobbying organizations and animal welfare projects were particularly effective, while scientific grants were harder to evaluate. He concludes that while not all projects succeeded, the $3 million program generated good value through both direct impact and startup creation, and he plans to continue it with some adjustments. Shorter summary
Mar 13, 2025
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OpenAI Nonprofit Buyout: Much More Than You Wanted To Know

28 min • 4,272 words • 313 comments • 230 likes • podcast (26 min)
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. Longer summary
The post explains the complex situation around OpenAI's attempt to convert from a nonprofit to a for-profit structure. Scott details the history of OpenAI as a nonprofit, why they want to change, and the various legal and financial challenges they face. The post covers Sam Altman's proposed buyout plan, Elon Musk's competing offer and lawsuit, and the role of state Attorneys General in approving any conversion. The post also explains the implications for AI development and safety, and contrasts OpenAI's structure with Anthropic's different approach to balancing profit with beneficial AI development. Shorter summary
Feb 27, 2025
acx
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Links For February 2025

45 min • 6,840 words • 933 comments • 212 likes • podcast (43 min)
Scott shares 50 diverse links covering topics from AI developments to policy changes, with commentary on current events, research findings, and societal trends. Longer summary
In this monthly links roundup, Scott Alexander covers a wide range of topics including AI developments, public policy changes, scientific research, and current events. The post follows a numbered format presenting each item with Scott's characteristic analysis and often humorous commentary. Notable topics include AI safety developments, changes in government policy, climate change updates, and various social and technological trends. The tone alternates between analytical and personal reflection, particularly when discussing potentially concerning political developments. Shorter summary
Dec 17, 2024
acx
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Links For December 2024

36 min • 5,568 words • 644 comments • 210 likes • podcast (34 min)
Scott shares 55 interesting links covering topics from AI poetry to religious movements, including updates on various projects, unusual historical events, and current developments in technology, politics, and society. Longer summary
This is Scott's monthly links post for December 2024, collecting various interesting stories and developments. The links cover a wide range of topics, from Steven Seagal's bizarre life trajectory to developments in AI and technology, including updates on previous ACX topics and grants. Many links relate to ongoing discussions in the rationalist and EA communities, including debates about effective altruism and charitable giving. The post also includes various curiosities from history, culture, and current events, with Scott often providing his own analysis or perspective on the items shared. Shorter summary
Nov 07, 2024
acx
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Congrats To Polymarket, But I Still Think They Were Mispriced

20 min • 2,993 words • 649 comments • 248 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
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Mantic Monday: Judgment Day

25 min • 3,744 words • 469 comments • 220 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
Oct 01, 2024
acx
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Preliminary Milei Report Card

18 min • 2,670 words • 465 comments • 486 likes • podcast (18 min)
Scott analyzes Javier Milei's presidency in Argentina, noting mixed results in economic indicators and policies, with some successes in budget cuts and inflation reduction, but increased poverty rates. Longer summary
This post analyzes the performance of Javier Milei, Argentina's libertarian president, focusing on key economic indicators and policies. Scott examines government surplus, inflation, poverty rates, rent control abolition, and Milei's approval ratings. He notes that Milei has achieved a government surplus through significant spending cuts and has reduced monthly inflation, though yearly inflation figures remain high. Poverty has increased under Milei's administration, but there are slight signs of economic improvement. The abolition of rent control has led to increased housing supply and lower prices. Milei's approval ratings, while declining, remain relatively high compared to other world leaders. Scott concludes that while Milei has fulfilled his promise of short-term economic shock, it's too early to judge the long-term success of his policies. Shorter summary
Sep 27, 2024
acx
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Vote In The 2024 Book Review Contest

3 min • 325 words • 153 comments • 54 likes
Scott Alexander opens voting for the 2024 Book Review Contest, explaining the approval voting system and listing the finalists. Longer summary
Scott Alexander announces the voting process for the 2024 Book Review Contest. He explains that this year they are using approval voting, where voters can select multiple favorites, and the entry with the most votes wins. Scott provides a link to the voting form, lists the 14 finalist book reviews, and mentions a prediction market for the contest outcome. He advises voters not to check the prediction market until after voting. Shorter summary
Sep 24, 2024
acx
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How Often Do Men Think About Rome?

11 min • 1,653 words • 341 comments • 254 likes • podcast (10 min)
Scott Alexander analyzes survey results on how often people think about the Roman Empire, finding little gender difference but a significant overall cultural impact. Longer summary
Scott Alexander analyzes the results of a survey question about how often people think about the Roman Empire, inspired by a Twitter meme. The survey, part of the annual ACX survey, found that 38% of women and 43% of men had thought about Rome in the past 24 hours. Scott explores various demographic factors influencing these results, including religion, political views, education, and profession. He also shares representative answers about the contexts in which people thought about Rome, ranging from historical interest to pop culture references. The post concludes that while the gender difference is small, the enduring cultural impact of Rome is remarkable. Shorter summary
Sep 17, 2024
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Mantic Monday 9/16/24

17 min • 2,631 words • 166 comments • 79 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
Jul 02, 2024
acx
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Prediction Markets Suggest Replacing Biden

31 min • 4,750 words • 780 comments • 186 likes • podcast (24 min)
Scott Alexander examines prediction markets suggesting that replacing Biden as the Democratic nominee could significantly improve the party's chances in the 2024 election. Longer summary
Scott Alexander analyzes prediction markets to assess whether replacing Joe Biden as the Democratic nominee would improve the party's chances in the 2024 election. He finds that replacing Biden with Kamala Harris would be neutral to slightly positive, while replacing him with Gavin Newsom or a generic Democrat could increase their odds of winning by 10-15 percentage points. Scott discusses potential objections to these findings, examines his own previous skepticism about Biden's cognitive decline, and reflects on the implications for Democratic party leadership and decision-making. Shorter summary
May 29, 2024
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Links for May 2024

38 min • 5,841 words • 986 comments • 126 likes • podcast (37 min)
A wide-ranging collection of 40 news items and interesting facts, covering AI, politics, science, economics, and culture, with the author's commentary. Longer summary
This post is a collection of 40 diverse links and news items covering topics such as AI developments, politics, science, technology, economics, and culture. It includes updates on OpenAI and Google's AI projects, discussions on religious phenomena, analyses of social and economic trends, and various interesting facts and anecdotes. The author provides commentary and context for many of the items, often with a mix of humor and critical analysis. Shorter summary
May 13, 2024
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Mantic Monday 5/13/24

33 min • 5,066 words • 146 comments • 52 likes • podcast (31 min)
Scott Alexander reviews recent developments in prediction markets and forecasting, including regulatory changes, platform pivots, and debates about the field's future. Longer summary
Scott Alexander reviews recent developments in prediction markets and forecasting. He discusses the CFTC's move to further restrict prediction markets, Manifold Markets' pivot to a sweepstakes model, a superforecasting report on COVID-19 origins, and debates about the future and value of forecasting. The post also covers various prediction market probabilities on current events and links to other forecasting news. Shorter summary
Mar 28, 2024
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Practically-A-Book Review: Rootclaim $100,000 Lab Leak Debate

118 min • 18,207 words • 905 comments • 369 likes • podcast (95 min)
Scott Alexander reviews a $100,000 debate on COVID-19 origins, where the zoonotic hypothesis unexpectedly won against the lab leak theory. Longer summary
Scott Alexander reviews a debate on the origins of COVID-19 between Saar Wilf, who supports the lab leak hypothesis, and Peter Miller, who argues for zoonotic origin. The debate was part of a $100,000 challenge by Wilf's Rootclaim project. Miller won decisively, with both judges ruling in favor of zoonotic origin. Alexander analyzes the debate format, arguments, and aftermath, discussing issues with Bayesian reasoning, extreme probabilities, and the challenges of resolving complex scientific questions through debate. Shorter summary
Mar 05, 2024
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Who Predicted 2023?

19 min • 2,907 words • 171 comments • 139 likes • podcast (17 min)
Scott Alexander analyzes the results of his 2023 forecasting contest, comparing various prediction methods and individual forecasters. Longer summary
Scott Alexander reviews the results of his 2023 annual forecasting contest, where participants predicted 50 questions about the upcoming year. He discusses the winners in both 'Blind Mode' (relying on personal knowledge) and 'Full Mode' (using aggregation algorithms). The post analyzes the performance of various forecasting methods, including individual forecasters, prediction markets, superforecasters, and aggregation techniques. Scott concludes that Metaculus, a forecasting platform, outperformed other methods, though some individual forecasters showed exceptional skill. He also examines which 2023 events were most surprising to forecasters and shares his main takeaways from the contest. Shorter summary
Feb 20, 2024
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Mantic Monday 2/19/24

25 min • 3,851 words • 133 comments • 67 likes • podcast (26 min)
Scott Alexander explores recent advancements in AI-powered prediction markets, including bot-based systems, AI forecasters, and their potential impact on future predictions and decision-making. Longer summary
This post discusses recent developments in prediction markets and AI forecasting. It covers Manifold's bot-based prediction markets, FutureSearch's AI forecasting system, Vitalik Buterin's thoughts on AI and crypto in prediction markets, a Manifold promotional event called 'Bet On Love', and various current market predictions on topics like AI capabilities and political events. The post also includes short links to related articles and forecasting resources. Shorter summary
Jan 30, 2024
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Mantic Monday 1/29/24

19 min • 2,887 words • 228 comments • 77 likes • podcast (19 min)
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. Longer summary
This post discusses several topics related to prediction markets and forecasting. It starts by examining a claim that prediction markets have an 'election problem', showing that real-money markets performed poorly in recent elections. The author then analyzes current polls and prediction markets for the 2024 US presidential election, noting discrepancies between different platforms. The post also explores a forecasting experiment on AI futures, and reviews several other prediction markets on current events. Finally, it includes short links to other forecasting-related news and reflections. Shorter summary
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