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224 posts found
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Apr 23, 2026
acx
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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
Mar 11, 2026
acx
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26 min 3,962 words 432 comments 493 likes podcast (22 min)
A guest post arguing that ratifying the Congressional Apportionment Amendment from the original Bill of Rights would expand the House to 6,641 members and fix Congress by reducing gerrymandering, diluting donor influence, and increasing constituent accountability. Longer summary
This guest post by David Speiser argues for ratifying the Congressional Apportionment Amendment, the only unratified amendment from the original Bill of Rights, which would expand the House of Representatives from 435 to about 6,641 members by setting one representative per 50,000 citizens. The post explains how Congress's current dysfunction stems from gerrymandering, money in politics, and polarization, and argues that a much larger House would ameliorate these problems by making districts smaller and harder to gerrymander, diluting the influence of big donors, and forcing representatives to be more accountable to local constituents. The amendment has already been ratified by 11 states and needs 27 more, avoiding the problem that most Congressional reforms require Congressional approval. The post acknowledges a typo in the amendment's wording that could force an interesting legal battle between textualism and originalism, and ends with a pitch to state legislators explaining why both parties should support ratification. Shorter summary
Dec 31, 2025
acx
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68 min 10,515 words 374 comments 174 likes podcast (56 min)
Scott reviews comments on his vibecession post, exploring when it started, whether it's really about economics or culture, and notably finding that China experiences similar pessimism despite 5-10x income growth, suggesting vibes can be completely divorced from economic reality. Longer summary
Scott Alexander reviews and discusses comments on his previous post about the 'vibecession' (the disconnect between good economic indicators and negative public sentiment). The discussion covers when the vibecession actually started, whether economic complaints are proxies for cultural dissatisfaction, housing and inflation concerns, international comparisons (especially China's similar phenomenon despite massive economic growth), and concludes that vibes may be genuinely divorced from economic reality, though housing prices and partisan political feelings play significant roles. Shorter summary
Dec 19, 2025
acx
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17 min 2,631 words 1,074 comments 666 likes podcast (16 min)
Scott argues against the trend of 'Boomer-hating,' contending that Baby Boomers delivered peace and prosperity, passed on greater wealth to their children, and don't differ significantly from younger generations on most political issues. Longer summary
Scott Alexander pushes back against the growing anti-Boomer sentiment in contemporary discourse. He argues that despite popular narratives, Baby Boomers presided over an era of unprecedented peace and prosperity, and younger generations actually have more inflation-adjusted wealth than Boomers did at the same age. He examines claims that Boomers are politically extreme (both left and right), finding minimal generational differences on issues like climate change, nuclear power, and housing policy. Scott addresses the accusation that Boomers are plundering younger generations through Social Security, showing that benefit generosity peaked in 1972 and has since contracted. He concludes by warning that generational identity politics, like other forms of identity politics, provides a lazy way to hate everything while avoiding substantive policy discussion, and that today's young people will eventually face similar resentment from future generations. Shorter summary
Dec 10, 2025
acx
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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
Nov 26, 2025
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32 min 4,875 words 296 comments 245 likes podcast (29 min)
Scott argues AI safety regulation adds only 1-2% to training costs while America has a 10x compute advantage over China, making safety concerns irrelevant to the race; meanwhile, chip exports to China pose a far greater threat that the same critics ignore. Longer summary
Scott argues that AI safety regulation will not significantly harm America's position in the AI race with China. He breaks down the race into three levels (compute, models, and applications), showing America has a massive 10x compute advantage while China's strategy focuses on applications. He demonstrates that proposed AI safety regulations would add only 1-2% to training costs - trivial compared to America's compute lead. The real threats to US advantage are chip export policies and smuggling, where NVIDIA lobbies to sell advanced chips to China, potentially reducing the US advantage from 30x to 1.7x. Scott notes the irony that many people opposing safety regulation on China grounds simultaneously support chip exports, and argues safety regulation might actually help the US by improving security, enabling compute governance, and preventing future overreactions to AI incidents. Shorter summary
Jul 11, 2025
acx
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51 min 7,754 words 170 comments 183 likes podcast (48 min)
A detailed review of a 1995 paper introducing the PDAPP mouse model for Alzheimer's disease, examining how its limitations were overlooked and shaped decades of potentially misguided Alzheimer's research. Longer summary
The post reviews a landmark 1995 paper introducing the PDAPP mouse model for Alzheimer's disease, analyzing how its technical achievements and limitations shaped three decades of Alzheimer's research. The author examines the paper's methodology, results, and claims, showing how the model's flaws - including extreme protein overexpression and lack of key disease features - were overlooked in favor of a compelling but incomplete amyloid cascade hypothesis, leading to years of failed drug development and missed opportunities to explore alternative approaches. Shorter summary
Jul 04, 2025
acx
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55 min 8,460 words 553 comments 434 likes podcast (46 min)
This review explores how schools are primarily designed to maximize motivation rather than learning, explaining why age-graded classrooms and seemingly inefficient group learning have persisted despite numerous attempts at reform. Longer summary
The post examines why schools have maintained their traditional structure of age-graded classrooms where all students learn the same content, despite its apparent inefficiencies. The author argues that schools are designed primarily to maximize motivation rather than learning, using conformity as a key tool. Through analyzing various attempts at personalized learning and their consistent failures to scale beyond about 5% of students, the post explains how students fall into three categories: no-structure learners, low-structure learners, and high-structure learners. The author concludes that while the current system is far from perfect, it has proven more effective at scale than any alternatives, predicting that despite continued attempts at reform, the basic structure of schooling will remain unchanged. Shorter summary
Jul 01, 2025
acx
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28 min 4,200 words 581 comments 210 likes podcast (32 min)
Scott shares his monthly collection of 56 interesting links and developments from July 2025, covering AI, politics, science, and culture, with brief commentary on each. Longer summary
This is a collection of 56 interesting links and news items from July 2025, covering topics from AI development to politics to scientific research. The post includes updates on OpenAI's status, developments in AI regulation, new medical treatments, cultural trends, and various scientific findings. Scott maintains his usual style of presenting these with brief commentary and occasional humor, while being careful to note that he hasn't independently verified all links. Some notable items include Trump's "Big Beautiful Bill", new AI safety developments, trends in social media usage, and various medical breakthroughs. Shorter summary
Jan 17, 2025
acx
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35 min 5,422 words 875 comments 236 likes podcast (32 min)
Scott shares various interesting links and news items from January 2025, covering topics from AI development and politics to historical curiosities and economic trends. Longer summary
This links post covers a wide array of topics from January 2025, with Scott providing commentary and analysis on each. The links include discussions about running for Congress, AI development and safety, dating advice, psychiatric diagnoses, and various economic and technological developments. Scott often adds his own insights and sometimes skepticism to the claims being discussed. The post also includes several historical curiosities and social observations, maintaining a mix of serious analysis and lighter interesting facts. Shorter summary
Nov 05, 2024
acx
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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
Jul 24, 2024
acx
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21 min 3,173 words 934 comments 180 likes podcast (20 min)
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. Longer summary
This post is a collection of 41 diverse links and news items covering a wide range of topics. The items include scientific studies, political developments, historical anecdotes, technological advancements, and cultural phenomena. Scott Alexander presents these with brief commentaries, often adding his own insights or expressing skepticism about certain claims. The tone is informative and occasionally humorous, with Scott pointing out interesting connections or implications of the information presented. Shorter summary
May 29, 2024
acx
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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 07, 2024
acx
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92 min 14,255 words 375 comments 103 likes podcast (74 min)
Scott Alexander summarizes and responds to comments on his review of 'The Origins of Woke', covering various aspects of civil rights law, workplace discrimination, and the spread of 'wokeness'. Longer summary
This post highlights various comments on Scott Alexander's review of Richard Hanania's book 'The Origins of Woke'. The comments cover a wide range of topics including personal experiences with workplace discrimination, the origins and spread of 'wokeness', civil rights law in different countries, EEOC lawsuits, and various other related subjects. The post provides a balanced view of different perspectives on these issues, showing both support for and criticism of Hanania's arguments. Shorter summary
Mar 28, 2024
acx
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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
Dec 22, 2023
acx
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26 min 4,000 words 448 comments 1,114 likes podcast (24 min)
Scott Alexander recounts his journey to fatherhood, blending personal experiences with broader reflections on progress, rationality, and the future his newborn twins will face. Longer summary
Scott Alexander shares his experience becoming a father to twins, intertwining personal anecdotes with philosophical reflections on parenthood, human progress, and the future. He starts with a humorous account of his fertility clinic visit, then describes the challenges of pregnancy and choosing names. The post explores the concept of children as 'surprisal-minimization engines' adapting to the world, and reflects on the advancements in child mortality and healthcare. Scott concludes by expressing both concern and hope for his children's future in a rapidly changing world, viewing them as 'ambassadors to the singularity'. Shorter summary
Dec 06, 2023
acx
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16 min 2,337 words 453 comments 203 likes podcast (14 min)
Scott Alexander examines the complexities of abolishing the FDA and proposes more practical alternatives to increase medical innovation while maintaining safeguards. Longer summary
Scott Alexander discusses the challenges of abolishing the FDA, a popular libertarian idea. He explores various issues that would arise, such as the fate of prescription medications, drug contamination inspections, and the potential for exploitation by unethical companies. The post then proposes two more practical alternatives to complete FDA abolition: legalizing artificial supplements and creating an 'experimental drug' category. These suggestions aim to increase medical innovation and access while maintaining some safeguards. Shorter summary
Dec 01, 2023
acx
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27 min 4,069 words 410 comments 125 likes podcast (26 min)
A collection of 47 diverse links and news items covering topics from religious practices to AI developments, with brief commentary on many items. Longer summary
This post is a collection of 47 diverse links and news items covering various topics. It includes discussions on religious practices, video games, political trends, scientific studies, AI developments, economic analyses, historical anecdotes, and cultural phenomena. The author provides brief commentary on many of the items, often with a mix of humor and critical analysis. The links range from academic studies and economic reports to quirky historical facts and contemporary cultural observations. Shorter summary
Nov 28, 2023
acx
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28 min 4,266 words 846 comments 428 likes podcast (19 min)
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. Longer summary
Scott Alexander defends effective altruism (EA) against recent criticisms, highlighting its accomplishments in global health, animal welfare, AI safety, and other areas. He argues that EA has saved around 200,000 lives, equivalent to ending gun violence, curing AIDS, and preventing a 9/11-scale attack in the US. Scott contends that EA's achievements are often overlooked because they focus on less publicized causes, and that the movement's occasional missteps are minor compared to its positive impact. He emphasizes that EA is a coalition of people who care about logically analyzing important causes, whether broadly popular or not, and encourages readers to investigate and support the most beneficial causes. Shorter summary
Sep 11, 2023
acx
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35 min 5,295 words 84 comments 49 likes podcast (28 min)
The post discusses reader comments on various model city projects, focusing on the Solano County proposal and Prospera, while also addressing other related topics. Longer summary
This post highlights comments on recent Model City Monday topics, focusing on the proposed Solano County city in California and Prospera in Honduras. It covers various aspects such as location challenges, air noise concerns, legal issues, and political context. The post also touches on other model city projects like Neom and Praxis, and debunks a false claim about France selling Kerguelen Island. Shorter summary
Aug 09, 2023
acx
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26 min 3,927 words 754 comments 137 likes podcast (25 min)
Scott Alexander presents a diverse collection of 38 links and news items, covering topics from book reviews and religious history to AI developments and political trends, with brief summaries and comments on each. Longer summary
This post is a collection of 38 diverse links and news items covering topics such as book reviews, religious history, economic forecasts, libertarianism, crime statistics, scientific studies, AI developments, educational policies, and political trends. Scott Alexander provides brief summaries or comments on each item, often with a mix of factual information and his own perspective. The links range from academic studies to social media posts, covering current events, historical anecdotes, and ongoing debates in various fields. Shorter summary
Aug 03, 2023
acx
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37 min 5,619 words 420 comments 178 likes podcast (32 min)
Scott reviews a biography of Vladimir Putin, tracing his rise to power and methods of maintaining control in Russia. Longer summary
This post reviews 'The Man Without A Face: The Unlikely Rise Of Vladimir Putin' by Masha Gessen, detailing Putin's life from childhood to his rise to power in Russia. It covers his KGB career, his unexpected ascent in politics, and his methods of consolidating power, including potential involvement in apartment bombings. The review also discusses Putin's shift towards conservative values and ends with reflections on whether a similar rise to dictatorship could happen in the US. Shorter summary
Jul 25, 2023
acx
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64 min 9,902 words 285 comments 75 likes podcast (54 min)
Scott Alexander reviews comments on his critique of the Social Model of Disability, considering defenses, real-world usage, and alternative perspectives. Longer summary
Scott Alexander reviews comments on his post criticizing the Social Model of Disability, highlighting arguments defending the model, discussing its real-world usage, and exploring other perspectives on disability and accommodation. Shorter summary
Jul 01, 2023
acx
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35 min 5,368 words 257 comments 106 likes podcast (34 min)
A review of 'Safe Enough?' by Thomas Wellock, exploring the history and limitations of Probabilistic Risk Assessment in nuclear safety. Longer summary
This book review examines 'Safe Enough? A History of Nuclear Power and Accident Risk' by Thomas Wellock, which chronicles the development of Probabilistic Risk Assessment (PRA) in nuclear safety. The review discusses how PRA became the dominant method for analyzing nuclear risk, its successes in reducing accidents, and its limitations in predicting extreme events like Fukushima. The author argues that while PRA greatly improved nuclear safety, it cannot fully account for rare but catastrophic 'dragon king' events, leaving the question of whether nuclear power is 'safe enough' ultimately unanswered. Shorter summary
Jun 29, 2023
acx
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35 min 5,353 words 606 comments 254 likes podcast (30 min)
Scott Alexander rebuts Bryan Caplan's arguments about mental illness, criticizing the preference/constraint dichotomy and providing counterarguments to Caplan's claims. Longer summary
Scott Alexander responds to Bryan Caplan's latest arguments about mental illness, criticizing Caplan's preference/constraint dichotomy and his claim that mental illnesses are just voluntary preferences. Scott argues that the distinction between preferences and constraints is not clear-cut, and that both physical and mental illnesses involve a mix of the two. He provides several counterarguments, including examples from physical illnesses, gradients of ability, and cases where the 'gun to the head' test fails. Scott also discusses how the framing of conditions as preferences or constraints depends on factors like ease of satisfaction and social norms. He concludes by rejecting Caplan's argument that one must either deny mental illness exists or classify homosexuality as a mental illness. Shorter summary
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