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Jul 30, 2026
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Links For July 2026 (Part 2)

39 min • 5,973 words • 305 comments • 150 likes
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. Longer summary
This is the second part of Scott Alexander's monthly links roundup for July 2026, covering a wide range of topics including AI developments, effective altruism funding waves, healthcare research, and cultural curiosities. Major themes include Chinese AI models catching up to the US (though still 6-12 months behind), the coming "third wave" of American philanthropy from AI company equity donations potentially flooding effective altruism with $40 billion/year, AI systems now outperforming humans at persuasion in specific contexts, and various scientific findings from dementia prevention to infinite ethics. The post maintains Scott's characteristic style of jumping between serious technical analysis, historical oddities, and humorous observations, with extensive linking to sources and ongoing debates in the rationalist and effective altruist communities. Shorter summary
Jun 11, 2026
acx
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My AI Opinions

43 min • 6,520 words • 618 comments • 409 likes • podcast (38 min)
Scott provides detailed probabilistic timelines and beliefs about AGI development, AI safety, geopolitics, and future outcomes, with his median expectation being AGI in 2031 and 20% probability of existential catastrophe given current safety efforts. Longer summary
Scott lays out his detailed probabilistic beliefs about AI development across five main areas: timelines for AGI and superintelligence (25% chance of AGI by 2027, 50% by 2034), safety prospects (20% chance of doom given current safety efforts, down from 50% without them), geopolitics around AI pauses (40% chance of US-China pause agreement before point of no return), other outcomes like permanent underclass (only 20% likely to last more than a generation), and simulation hypothesis (66% chance the singularity is related to us being in a simulation). He provides arguments for optimism and pessimism on each point, with his modal scenario involving AGI in 2031, widespread automation by late 2030s, and Bostromian superintelligence making GDP go vertical in the early 2040s. The post is technical and probabilistic throughout, written in response to misinterpretations of his views. Shorter summary
May 07, 2026
acx
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Contra Everyone On Taste

35 min • 5,410 words • 817 comments • 682 likes • podcast (32 min)
Scott argues that aesthetic discussions wrongly conflate sensory delight with novelty and context, and that modern art's obsession with being part of a historical conversation has led to the abandonment of beauty in favor of mechanical innovation. Longer summary
Scott argues that discussions of artistic taste conflate multiple distinct concepts (sensory delight, novelty, pattern recognition, context, etc.) and that this conflation prevents clear thinking. He uses a parable about restaurant criticism to argue that we should isolate the direct aesthetic experience from contextual factors like novelty and provenance, similar to how medical trials control for placebo effects. He criticizes modern art and literature for prioritizing novelty and historical conversation over genuine beauty or transformation, using examples like the Angelus Novus painting (which inspired beautiful commentary despite being visually unimpressive) and the constraints on contemporary novels. Scott acknowledges the value of artistic innovation but argues that when artists can't successfully marry beauty with novelty, they should stick to traditional forms rather than produce endless variations of transgressive art that adds nothing meaningful to the conversation. Shorter summary
Oct 30, 2025
acx
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Links For October 2025

42 min • 6,423 words • 803 comments • 211 likes • podcast (38 min)
Scott Alexander presents 51 links covering AI progress and safety, political developments, scientific research, cultural oddities, and ongoing philosophical debates about miracles and education reform. Longer summary
Scott Alexander shares 51 links covering diverse topics including AI developments (agents, safety, consciousness research), political news (Ukraine policy, UK politics, Trump administration), science updates (climate predictions, genetics, bacteriophages), cultural curiosities (Shakespeare superfan plastic surgery, Soviet naming conventions, flag cones), health research (Alzheimer's prevention, shingles vaccine reducing dementia, kidney donation), and philosophical debates (Hume's argument against miracles, the Fatima miracle discussion). The post maintains Scott's characteristic blend of serious analysis and quirky observations, touching on everything from Bach's descendants in Oklahoma to the mystery of why AI still struggles with laundry folding despite mastering protein folding. Shorter summary
Sep 04, 2025
acx
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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 04, 2025
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Your Review: School

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
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
Sep 10, 2024
acx
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Contra DeBoer On Temporal Copernicanism

16 min • 2,425 words • 422 comments • 211 likes • podcast (15 min)
Scott Alexander refutes Freddie deBoer's argument against expecting major events in our lifetimes, presenting a more nuanced approach to estimating such probabilities. Longer summary
Scott Alexander responds to Freddie deBoer's argument against expecting significant events like a singularity or apocalypse in our lifetimes. Alexander critiques deBoer's 'temporal Copernican principle,' arguing that it fails basic sanity checks and misunderstands anthropic reasoning. He presents a more nuanced approach to estimating probabilities of major events, considering factors like technological progress and population distribution. Alexander concludes that while prior probabilities for significant events in one's lifetime are not negligible, they should be updated based on observations and common sense. Shorter summary
Aug 28, 2024
acx
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In Defense Of "I'm Sorry You Feel That Way"

5 min • 712 words • 661 comments • 566 likes • podcast (5 min)
Scott Alexander argues that 'I'm sorry you feel that way' is a valid and useful phrase in certain situations, despite widespread criticism. Longer summary
Scott Alexander defends the phrase 'I'm sorry you feel that way', often criticized as a fake apology. He argues that in situations where someone is upset by an appropriate action, this phrase is a good middle ground between changing one's mind and being dismissive. Scott suggests that the hostility towards this phrase stems from 'therapy culture', which overfits social norms to benefit oneself in any given situation. He concludes that 'I'm sorry you feel that way' can be a polite and compassionate response when someone is upset by an action you continue to endorse. Shorter summary
Jul 30, 2024
acx
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Matt Yglesias Considered As The Nietzschean Superman

77 min • 11,870 words • 1,034 comments • 999 likes • podcast (73 min)
Scott Alexander examines Nietzsche's concepts of 'master morality' and 'slave morality', analyzing their modern manifestations and exploring potential compromises between these opposing moral frameworks. Longer summary
Scott Alexander explores the concepts of 'master morality' and 'slave morality' introduced by Nietzsche, analyzing their manifestations in modern society and various ideologies. He discusses how these moral frameworks are reflected in figures like Ayn Rand, Andrew Tate, and Matt Yglesias, as well as in movements like effective altruism. The post examines the tensions between these moral systems and attempts to find a balance or transcendence of the dichotomy, ultimately suggesting that a cyclical, civilization-building approach might offer a meaningful compromise. Shorter summary
Jul 18, 2024
acx
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Highlights From The Comments On Mentally Ill Homeless People

63 min • 9,672 words • 703 comments • 172 likes • podcast (52 min)
Scott Alexander discusses various responses to his post on mentally ill homeless people, emphasizing the need for specific, detailed plans. Longer summary
Scott Alexander responds to comments on his previous post about mentally ill homeless people, addressing various objections and proposed solutions while emphasizing the need for specific, detailed plans rather than vague calls for toughness. Shorter summary
May 29, 2024
acx
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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
Mar 07, 2024
acx
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How Should We Think About Race And "Lived Experience"?

26 min • 3,958 words • 762 comments • 407 likes • podcast (21 min)
Scott Alexander analyzes the Elizabeth Hoover case to explore the complexities of racial identity, lived experience, and the ethics of cultural appropriation. Longer summary
Scott Alexander examines the case of Elizabeth Hoover, a professor who believed she was Native American but later discovered she wasn't, to explore the concept of race and lived experience. He discusses the complexities of defining race, the problems with basing identity solely on genetics or lived experience, and the ethical implications of cultural appropriation and affirmative action. The post critiques the harsh treatment Hoover received, suggesting it's a result of cancel culture and an overly rigid application of rules about cultural identity. Scott argues for a more nuanced and compassionate approach to such cases, highlighting the potential cruelty of retroactively invalidating someone's identity based on genetic tests. Shorter summary
Feb 07, 2024
acx
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You Don't Hate Polyamory, You Hate People Who Write Books

12 min • 1,717 words • 832 comments • 474 likes • podcast (11 min)
Scott Alexander argues against judging polyamory based on memoirs or advice books, as these are often written by unrepresentative individuals. Longer summary
Scott Alexander critiques a pattern in media where people generalize about polyamory based on memoirs or advice books. He argues that this is unfair, as such books are often written by people with relationship issues or narcissistic tendencies, not representative of the average polyamorous person. He extends this critique to other groups, suggesting that public representatives often poorly reflect the actual members of various communities. Shorter summary
Nov 30, 2023
acx
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Contra DeBoer On Movement Shell Games

20 min • 3,071 words • 700 comments • 216 likes • podcast (18 min)
Scott Alexander defends effective altruism against Freddie deBoer's criticism, arguing for its distinctiveness, practical value, and positive marginal effects. Longer summary
Scott Alexander responds to Freddie deBoer's criticism of effective altruism (EA) as a 'shell game'. He argues that EA can be defined distinctly from universally-held beliefs, serves as a social technology to encourage charitable action, and is composed of valuable organizations. Scott also discusses the challenges of categorizing ideological movements, suggests judging movements by their marginal effects, and defends EA's focus on both widely accepted and more controversial causes. Shorter summary
Sep 28, 2023
acx
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Links For September 2023

28 min • 4,250 words • 1,068 comments • 110 likes • podcast (26 min)
A diverse collection of links and brief comments on recent developments in science, technology, politics, and society, ranging from climate change to AI developments to social experiments. Longer summary
This post is a collection of links and brief comments on various topics. It covers a wide range of subjects including climate change, AI developments, social experiments, scientific studies, political issues, and technological innovations. The author presents these topics with a mix of factual reporting, personal commentary, and sometimes humorous observations. The post touches on subjects like geoengineering, crypto for sex workers, AI art, fertility rates, dating apps, charity effectiveness, and many others. The author often provides links to original sources and sometimes offers his own analysis or opinion on the matters discussed. Shorter summary
Jul 14, 2023
acx
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Your Book Review: The Educated Mind

165 min • 25,503 words • 420 comments • 356 likes • podcast (193 min)
Kieran Egan's educational theory proposes rebuilding school curricula around five kinds of understanding to create more engaging and effective learning experiences. Longer summary
This review explores Kieran Egan's educational theory outlined in his book 'The Educated Mind', which proposes a new approach to education based on five kinds of understanding: Somatic, Mythic, Romantic, Philosophic, and Ironic. Egan argues that schools fail because they ignore cognitive tools that have worked for centuries and instead try to balance three incompatible educational goals. He suggests rebuilding the curriculum around these cognitive tools to create more engaging and effective learning experiences. Shorter summary
Jul 06, 2023
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Links For July 2023

24 min • 3,581 words • 495 comments • 117 likes • podcast (19 min)
A diverse collection of links and news items from July 2023, covering topics from historical curiosities to current technological and social developments. Longer summary
This post is a collection of interesting links and news items from July 2023. It covers a wide range of topics including historical curiosities, scientific studies, social issues, technological advancements, and current events. The post touches on subjects such as town naming, polyamory research, AI developments, and political decisions. It also includes some humorous and unusual facts, as well as commentary on social and cultural trends. Shorter summary
May 24, 2023
acx
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Hypergamy: Much More Than You Wanted To Know

45 min • 6,823 words • 411 comments • 290 likes • podcast (39 min)
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
Apr 27, 2023
acx
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Highlights From The Comments On Nerds And Hipsters

40 min • 6,075 words • 495 comments • 108 likes • podcast (34 min)
Scott summarizes and responds to comments on his previous article about nerds and hipsters, covering various topics and reflecting on personal identity and social signaling. Longer summary
This post summarizes and responds to comments on Scott's previous article about nerds and hipsters. It covers various topics including the changing definition of 'nerd', the decline of traditional collecting hobbies, the value of sports, and the relationship between enjoying things and building identities around them. Scott reflects on these comments, offering his own thoughts and experiences, and explores the complexities of personal identity and social signaling in modern culture. Shorter summary
Apr 03, 2023
acx
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Highlights From The Comments On Telemedicine Regulations

33 min • 4,965 words • 135 comments • 101 likes • podcast (27 min)
Scott Alexander responds to comments on his post about new telemedicine regulations, addressing various concerns and criticisms raised by readers. Longer summary
Scott Alexander summarizes and responds to various comments on his original post about new telemedicine regulations. He addresses concerns about drug addiction, debates the effectiveness of telemedicine compared to in-person care, discusses the issue of 'pill mills', clarifies his analogy about blind people accessing Braille, responds to criticism of his characterization of Christian doctors, examines which part of the government is responsible for the regulations, and looks at how other countries handle telemedicine prescriptions. Shorter summary
Dec 28, 2022
acx
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Links For December 2022

35 min • 5,333 words • 650 comments • 124 likes • podcast (35 min)
Scott Alexander shares 57 diverse links and brief commentaries on topics ranging from politics and psychology to technology and culture. Longer summary
Scott Alexander presents a collection of 57 interesting links and brief commentaries on various topics, including politics, psychology, technology, culture, and science. The post covers a wide range of subjects, from corporate takeovers and European stereotypes to psychedelic research and AI developments. It also includes discussions on mental health, education, and current events. Shorter summary
Sep 29, 2022
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Universe-Hopping Through Substack

46 min • 7,043 words • 279 comments • 315 likes • podcast (48 min)
Scott Alexander reviews popular Substack blogs from various categories, offering humorous commentary and insights on each. Longer summary
Scott Alexander explores various Substack blogs across different categories, offering humorous commentary and insights on each. He starts with a popular culture blog about celebrity gossip, moves on to a top political newsletter, then examines blogs on faith and spirituality, business, food and drink, music, international affairs, and sports. Throughout, Scott mixes analysis of the content with witty observations about the nature of blogging and the diverse 'universes' represented by different Substack niches. Shorter summary
Aug 24, 2022
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Effective Altruism As A Tower Of Assumptions

9 min • 1,259 words • 893 comments • 281 likes • podcast (12 min)
Scott Alexander defends Effective Altruism by presenting it as a 'tower of assumptions,' arguing that critics often miss its core principles of systematic giving and maximizing impact. Longer summary
Scott Alexander discusses criticisms of Effective Altruism (EA), arguing that many critiques miss the core principles of the movement. He presents EA as a 'tower of assumptions,' where even if higher-level ideas are disputed, the fundamental concepts remain valid. The post starts with hypothetical responses to common EA criticisms, then explains the core of EA using the Drowning Child scenario. Scott emphasizes that even if specific EA ideas or institutions are criticized, the basic tenets of systematic giving and maximizing impact remain important. He concludes by asserting that personal moral obligation is the most crucial aspect of EA, beyond debates about the movement's status or specific strategies. Shorter summary
Aug 19, 2022
acx
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Highlights From The Comments On Subcultures

31 min • 4,672 words • 162 comments • 64 likes • podcast (29 min)
Scott Alexander discusses reader comments on his cyclic theory of subcultures, addressing critiques and expanding on the model's applications and limitations. Longer summary
Scott Alexander discusses various comments on his post about a cyclic theory of subcultures. He addresses critiques and expansions of his model, including the role of loyalists, the importance of unassailable central figures, and how movements transition between phases. Scott also reflects on the current state of rationalism and effective altruism, provides his timeline for the rationalist movement, and explores the concept of status in subcultures. Shorter summary
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