Scott analyzes the legal controversy around AI companies contracting with the Department of War, showing that 'all lawful use' permits mass surveillance and autonomous weapons through existing legal loopholes, despite OpenAI's claims of safeguards. Longer summary

Scott Alexander analyzes the controversy around AI companies' contracts with the Department of War, focusing on Secretary of War Pete Hegseth's designation of Anthropic as a 'supply chain risk' after they refused to allow their AI to be used for mass surveillance and autonomous weapons. The post examines OpenAI's subsequent agreement with the DoW, which permits 'all lawful use' of their models. Through detailed legal analysis provided by anonymous readers, Scott shows that current laws have significant loopholes: mass domestic surveillance is technically legal when data is 'incidentally obtained' or purchased from third parties, and autonomous weapons are only regulated by vague DoW policies that can be changed at will. The post critiques OpenAI's FAQ as misleading, arguing their safeguards are inadequate, and concludes with questions that employees, journalists, and lawmakers should be asking about the contract. Shorter summary

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

Scott examines why young people feel economically hopeless despite economists saying things are fine, testing various explanations like housing costs and wages, and concluding the truth involves both real factors (harder competition, expensive cities, recent mortgage spikes) and media-driven negativity. Longer summary

Scott Alexander investigates the 'vibecession' - the paradox where economic indicators show improvement but consumer sentiment is terrible, particularly among young people who feel permanently locked out of opportunity. He systematically examines various proposed explanations including declining wages, housing costs, inflation miscalculation, inequality, and debt, finding that none fully explain the phenomenon. His analysis suggests the crisis may be partly real (increased effort required for same outcomes, concentration of jobs in expensive cities, recent mortgage increases) but also partly driven by increasingly negative media coverage and changing consumption patterns toward more conspiratorial sources. Shorter summary

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

Scott explores the 'missing heritability' problem in genetics, where twin studies show traits like IQ and educational attainment are highly heritable but newer genomic methods find much lower heritability, analyzing various potential explanations for this discrepancy. Longer summary

The post examines the 'missing heritability' problem in genetics, where twin studies consistently show behavioral traits like IQ and educational attainment are substantially heritable (around 40-60%), while newer genomic methods find much lower heritability (around 15-20%). Scott reviews the history of behavioral genetics research, explains various study methodologies and their potential biases, and analyzes different hypotheses for this discrepancy. He examines whether twin studies might be flawed, whether newer methods might be missing important genetic effects, and whether educational attainment might be an unusually problematic trait to study. While acknowledging remaining mysteries, he tentatively concludes that twin studies are probably largely correct and that newer methods may be missing rare variants and genetic interactions. Shorter summary

A collection of 41 interesting links and news items from April 2025, covering AI, politics, culture, and science, with Scott's commentary on each. Longer summary

This is a links roundup post featuring various interesting news, studies, and curiosities from April 2025. The post covers a wide range of topics including AI developments (particularly around OpenAI and truth-seeking AI), political updates (about Trump, immigration policy, and minimum wage effects), cultural items (like etymology of cowboy terms and medieval perception), and scientific findings. Scott maintains a light, sometimes humorous tone while sharing these diverse pieces of information, occasionally adding his own analysis or perspective on controversial topics. Shorter summary

Scott analyzes research on whether longer prison sentences reduce crime, examining studies on deterrence, incapacitation, and aftereffects, to conclude that while prison does decrease crime through incapacitation, it's less cost-effective than other methods like policing. Longer summary

This post examines the relationship between prison sentences and crime reduction through three mechanisms: deterrence (scaring potential criminals), incapacitation (preventing prisoners from committing crimes), and aftereffects (post-release behavior changes). Through analysis of multiple studies and reviews, Scott finds that deterrence effects are minimal, incapacitation has strong positive effects (preventing about 7 crimes per prisoner-year), and aftereffects range from slightly beneficial to harmful depending on circumstances. He concludes that while prison does reduce crime, with a 10% increase in incarceration reducing crime by about 3%, it's less cost-effective than alternatives like increased policing. The post ends by examining practical challenges in the justice system that prevent effective handling of repeat offenders. Shorter summary

The post argues against California's Proposition 36, claiming it will increase imprisonment without effectively reducing crime or drug use, and suggests alternative solutions. Longer summary

This post argues against California's Proposition 36, which aims to increase mandatory sentences for certain drug and theft crimes. The author contends that while Prop 36 will certainly imprison more people, it won't effectively combat crime. The post analyzes the proposition's impact on drug-related offenses and theft, using data to show that increased sentencing doesn't correlate with reduced drug use or crime rates. It also points out the lack of treatment resources required by the proposition and the potential negative impact on existing crime prevention programs. The author suggests that instead of longer sentences, California should focus on targeted interventions, increased police resources, and expanding treatment options for drug addiction. Shorter summary

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

A critical review of 'Why Nations Fail' that examines the authors' academic work and methodology, while questioning the book's quality and practical implications. Longer summary

This review critiques 'Why Nations Fail' by Acemoglu and Robinson (AR), arguing that while the book itself is not very good, AR's academic papers present a more compelling case for their thesis that political institutions are the main determinant of economic growth. The reviewer explains AR's methodology using instrumental variables, discusses their evidence and criticisms, and ultimately concludes that even if AR are correct, their extremely long-run focus may not be very useful for practical policymaking or development efforts. Shorter summary

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

A review of 'Public Citizens' by Paul Sabin, examining how Ralph Nader's public interest movement transformed American governance, with both positive and negative long-term effects. Longer summary

This book review discusses 'Public Citizens' by Paul Sabin, which explores how Ralph Nader and the public interest movement he inspired transformed American governance, leading to unintended consequences that now hinder progressive action. The review traces Nader's career from his early advocacy for auto safety to his creation of a new model of activism through litigation and regulatory pressure. It examines how this approach, while achieving significant reforms, also contributed to the current bureaucratic gridlock in American governance. The review concludes with a brief discussion of Nader's controversial role in the 2000 presidential election. Shorter summary

Scott Alexander examines hypergamy in modern marriages, finding educational hypergamy has reversed while income hypergamy persists, with strong class homogamy for both genders. Longer summary

Scott Alexander examines the concept of hypergamy, particularly focusing on educational and income differences in heterosexual marriages. He finds that while educational hypergamy (women marrying more educated men) has reversed due to women's increasing educational attainment, income hypergamy (women marrying higher-earning men) persists. The post explores various studies on class, income, and educational matching in marriages, discusses the role of physical attractiveness, and touches on hypergamy in same-sex relationships. Scott concludes that class homogamy is strong for both genders, with looks playing a smaller role than often assumed in mate selection. Shorter summary

Scott Alexander shares a diverse collection of interesting links and news items for April 2023, covering topics from unusual stories and scientific research to AI developments and global trends. Longer summary

Scott Alexander presents a collection of interesting links and news items for April 2023. The post covers a wide range of topics, including unusual stories, scientific research, political developments, AI progress and concerns, cultural phenomena, and more. Notable items include a real-life 'Cocaine Bear' story, an adversarial collaboration on income and happiness, concerns about AI development, and updates on global trends like birth rates in Africa. The post also includes several short fiction recommendations and humorous AI-related anecdotes. Shorter summary

The post examines whether unimproved land value can be accurately assessed separately from buildings, a crucial aspect of Georgist land value taxation. Longer summary

This post explores the feasibility of accurately assessing unimproved land value separately from buildings, a key requirement for implementing Georgist land value taxation. It reviews various modern assessment methods, discusses their accuracy and limitations, and concludes that while not perfect, these methods are likely 'good enough' for practical implementation of land value tax policies. Shorter summary

Lars Doucet examines whether landlords can pass Land Value Tax on to tenants, concluding that empirical evidence supports they cannot. Longer summary

This article, written by Lars Doucet, is the second part of a series examining the empirical basis for Georgism. It focuses on the question of whether landlords can pass Land Value Tax (LVT) on to tenants. The article presents both theoretical arguments and empirical evidence, primarily from a 2017 Danish study, to support the claim that LVT cannot be passed on to tenants. It also reviews and critiques opposing viewpoints, ultimately concluding that the evidence strongly supports the full capitalization of LVT into land prices, meaning landlords bear the cost of the tax. Shorter summary

Lars Doucet presents evidence that land is still a major economic factor in modern times, contrary to some economists' claims. Longer summary

This post, written by Lars Doucet, is the first in a series examining the empirical basis for Georgism. It focuses on whether land is still a significant economic factor in modern times, as some economists argue it isn't. Doucet presents evidence that land is indeed a major economic factor, showing that it represents a large portion of urban real estate value, bank loans, personal assets, and government revenue potential. He also demonstrates that land ownership is highly concentrated among the wealthy, contributing to economic inequality. The post concludes that land is a 'really big deal' in modern economies, contrary to some economists' claims. Shorter summary

Scott Alexander analyzes ivermectin studies for COVID-19, finding most positive results likely due to methodological flaws, fraud, or confounding by parasitic infections. Longer summary

Scott Alexander provides an in-depth analysis of ivermectin studies for COVID-19 treatment, examining methodological issues, potential fraud, and confounding factors. He concludes that ivermectin likely doesn't significantly reduce COVID mortality except potentially in areas with high parasitic worm infections. The post explores broader issues around scientific credibility, fraud detection, and public trust in science. Shorter summary

Scott examines new techniques in forecasting and prediction markets, including reciprocal scoring and iterated markets, while highlighting the accuracy of prediction markets compared to traditional media. Longer summary

Scott Alexander discusses recent developments in forecasting and prediction markets. He covers a new paper on reciprocal scoring for long-term and counterfactual predictions, the performance of prediction markets vs. traditional media in calling election results, a proposal for iterated prediction markets to handle long-term forecasts, and updates on current prediction market probabilities for various events. He also notes the accuracy of past Metaculus predictions about Starlink availability and shares some short items on futurism and expert forecasting. Shorter summary

Scott Alexander critiques Daron Acemoglu's Washington Post article on AI risks, highlighting flawed logic and unsupported claims about AI's current impacts. Longer summary

Scott Alexander critiques an article by Daron Acemoglu in the Washington Post about AI risks. He identifies the main flaw as Acemoglu's argument that because AI is dangerous now, it can't be dangerous in the future. Scott argues this logic is flawed and that present and future AI risks are not mutually exclusive. He also criticizes Acemoglu's claims about AI's current negative impacts, particularly on employment, as not well-supported by evidence. Scott discusses the challenges of evaluating new technologies' impacts and argues that superintelligent AI poses unique risks different from narrow AI. He concludes by criticizing the tendency of respected figures to dismiss AI risk concerns without proper engagement with the arguments. Shorter summary

Scott Alexander provides updates on coronavirus trends, discusses various pandemic-related topics, and analyzes different countries' responses and policy proposals. Longer summary

This blog post provides updates on various aspects of the coronavirus pandemic. It discusses the slowing growth rate of cases in many countries, the challenges of mail-in voting in the US, charity efforts, how different countries are responding to the crisis, economic analyses of lockdowns, some positive developments in the US response, and various other coronavirus-related topics. The post maintains a speculative and analytical tone, examining different perspectives on issues like immunity certificates, expert predictions, and controversies around ventilator donations. Shorter summary

Scott Alexander presents a curated list of interesting links and news items on topics ranging from politics and science to technology and culture. Longer summary

This post is a collection of interesting links and news items curated by Scott Alexander. It covers a wide range of topics including politics, science, technology, economics, and culture. Some highlights include: a study on the effects of gender-balanced corporate boards in California, a debate about YouTube's algorithm and radicalization, updates on the coronavirus outbreak, and interesting scientific findings on topics like obesity and climate models. The post also includes humorous items and writing prompts. Shorter summary

Stuart Russell's 'Human Compatible' presents AI safety concerns and potential solutions in an accessible way, though the reviewer has reservations about its treatment of current AI issues. Longer summary

Stuart Russell's book 'Human Compatible' discusses the potential risks of superintelligent AI and proposes solutions. The book is significant as it's written by a distinguished AI expert, making the topic more mainstream. Russell argues against common objections to AI risk, presents his research on Cooperative Inverse Reinforcement Learning as a potential solution, and discusses current AI misuses. The reviewer praises Russell's ability to make complex ideas accessible but expresses concern about the book's treatment of current AI issues, worried it might undermine credibility for future AI risk discussions. Shorter summary

A diverse collection of links covering technology, science, economics, politics, and culture, including critiques of studies, interesting scientific findings, and current events. Longer summary

This post is a collection of links to various interesting articles, studies, and news items. It covers a wide range of topics including technology, science, economics, politics, and culture. Some highlights include: a list of places branding themselves as the next Silicon Valley, a study on declining fertility in dogs, critiques of bad scientific studies, an article on antidepressant tapering, data on value drift in effective altruism, and discussions on the Mueller Report's impact on media credibility. The post also includes links to various interesting facts, studies, and developments in fields such as nutrition, drug use, e-cigarettes, and urban development. Shorter summary

Scott Alexander shares a diverse collection of links on topics including architecture, history, science, politics, and economics, offering brief commentaries and insights on each. Longer summary

This post is a collection of various links and brief commentaries on diverse topics. Scott Alexander covers subjects ranging from architecture and history to science, politics, and economics. He discusses the Obama Presidential Library, unusual historical facts, effective altruism, AI policy careers, Bitcoin mining, and scientific studies on parenting and voter ID laws. The post also touches on topics like gender discrimination in tech, nuclear energy startups, and dietary trends. Throughout, Scott provides his characteristic mix of curiosity, skepticism, and humor in discussing these wide-ranging subjects. Shorter summary