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An Open Letter To Steven Pinker On AI

Scott Alexander methodically rebuts Steven Pinker's arguments against AI risk concerns and documents fifteen years of what he considers misrepresentations and bad-faith arguments from Pinker about the AI safety community.

acx
Oct 6, 2026 11,723 words 580 likes 410 comments Read Read

Does Georgism Work? Five Years Later

Lars Doucet revisits his influential 2021 ACX book review on Georgism five years later, updating his thinking on land value tax implementation based on practical policy work and recent legislative wins in multiple states.

acx
Sep 24, 2026 10,558 words 453 likes 480 comments Read Read

Mysteries Of AI Generalization

Scott discusses three recent papers showing surprising patterns in how AI misbehavior does and doesn't generalize across different contexts, from emergent misalignment spreading across domains to reward-hacking staying confined to graded tasks.

acx
Sep 23, 2026 2,955 words 343 likes 232 comments Read Read

Your Book Review: This Is Going To Hurt

Two psychiatrists conduct an adversarial review of Adam Kay's 'This Is Going To Hurt,' debating whether his NHS memoir represents institutional failure causing PTSD or a self-inflicted martyr complex, while examining the book's comedy, structure, and impact on healthcare discourse.

acx
Sep 18, 2026 12,952 words 183 likes 358 comments Read Read

AI Superforecasting Should Transform The FDA

Josh Morrison argues that AI superforecasting could transform FDA drug approval by replacing subjective expert judgment with objective, quantitative predictions about drug safety and efficacy.

acx
Sep 16, 2026 1,541 words 134 likes 179 comments Read Read

King Ludd

Scott traces the obscure Romano-British god Nodens through various mythologies, connecting him to figures like Nuada, King Lud, Tolkien's Celebrimbor, and ultimately to Ned Ludd of the Luddite movement, arguing they all represent the same archetypal figure of a techno-utopian who tries to control or undo dangerous technology.

acx
Sep 14, 2026 3,390 words 557 likes 400 comments Read Read

Absurd Adventure And Amygdalectomy Advocacy

Daniel Böttger describes his experience after brain surgery for cancer removed his right amygdala, resulting in the complete elimination of visceral fear, depression, and most suffering, while also causing some social difficulties and autism-like symptoms.

acx
Sep 2, 2026 5,077 words 430 likes 219 comments Listen · 29 min Read Read

Your Book Review: A Residence Of 21 Years In The Sandwich Islands

A descendant of missionary Hiram Bingham reviews his ancestor's memoir about bringing Christianity and Western civilization to Hawaii in the 1820s-1840s, drawing parallels to modern Effective Altruism and examining what lessons today's do-gooders can learn from this earlier generation of world-savers.

acx
Aug 21, 2026 9,687 words 171 likes 87 comments Listen · 54 min Read Read

Why I'm Staying Out Of The Substack Religion Debate

Scott explains why he's not interested in participating in the current wave of God debates on Substack, arguing that religious explanations fall into the same category as conspiracy theories by invoking "powerful hidden entities" to explain anomalies.

acx
Aug 19, 2026 3,639 words 445 likes 849 comments Listen · 21 min Read Read

Your Book Review: The Escape Artist

A book review of 'The Escape Artist,' which tells the story of Rudolf Vrba's escape from Auschwitz and his failed attempt to stop the Holocaust by warning European Jews, ultimately exploring human denial in the face of unimaginable horrors.

acx
Aug 14, 2026 8,753 words 332 likes 347 comments Listen · 60 min Read Read

Open Questions On Open Weights

Scott examines the debate over open-weights AI, explaining why he remains neutral despite risks of criminal misuse, arguing that waiting for inevitable incidents is more strategic than preemptively burning political capital fighting the strong pro-open-weights coalition.

acx
Aug 6, 2026 1,762 words 222 likes 290 comments Listen · 11 min Read Read

The Beauty Of Settled Science

Scott argues the real distinction in psychology isn't between subfields but between settled science (like dopamine, brain localization, heritability) and breaking-news research, defending psychology's solid core against critics who conflate bad recent studies with the entire field.

acx
Aug 4, 2026 2,027 words 361 likes 269 comments Listen · 13 min Read Read

Does Forecasting Have Room At The Top?

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

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

Your Book Review: The Epic Of Gilgamesh

An exploration of the Epic of Gilgamesh, the world's oldest epic, examining its themes of mortality and meaning while providing extensive historical context about ancient Mesopotamia and arguing that the poem's true immortality comes from the countless people who preserved and transmitted it.

acx
Jul 31, 2026 13,140 words 317 likes 107 comments Listen · 74 min Read Read

Links For July 2026 (Part 2)

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

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

Highlights From The Discourse On The Hugging Face Incident

Scott analyzes reactions to the Hugging Face incident and celebrates a major open letter from AI lab employees calling for coordinated slowdowns, which he sees as significantly improving humanity's chances of surviving AI development.

acx
Jul 30, 2026 6,868 words 289 likes 293 comments Listen · 43 min Read Read

Your Book Review: Breakdown In Pakistan

This review of Masooda Bano's 'Breakdown in Pakistan' examines how Western aid systematically destroys the capacity of local voluntary organizations to mobilize collective action, replacing diverse community-driven institutions with professionalized NGOs dependent on foreign funding.

acx
Jul 24, 2026 7,544 words 286 likes 345 comments Listen · 47 min Read Read

Links For July 2026 (Part 1)

Scott shares his monthly collection of interesting links from around the internet, covering topics from Jeremy Bentham's linguistic legacy to AI developments, with characteristic commentary and fact-checking caveats.

acx
Jul 22, 2026 3,748 words 220 likes 442 comments Listen · 22 min Read Read

Contra Pritchard On Liberal Happiness

Scott defends liberalism against claims it has failed by explaining that happiness scales logarithmically with income, so our 225x wealth increase since medieval times correctly predicts the 3-point happiness gain we've actually seen, and recent declines are due to COVID rather than systemic failure.

acx
Jul 21, 2026 1,920 words 404 likes 493 comments Listen · 14 min Read Read

Your Book Review: Great And Desperate Cures

A review of 'Great and Desperate Cures' by Elliot Valenstein, which examines the history of lobotomy and psychosurgery, explaining how tens of thousands of patients underwent dangerous brain operations from the 1930s-1950s despite poor evidence of effectiveness.

acx
Jul 17, 2026 20,439 words 214 likes 192 comments Listen · 147 min Read Read

Against "Stochastic Terrorism"

Scott argues against the concept of 'stochastic terrorism' by showing it's applied inconsistently across the political spectrum, examining and rejecting various proposed distinctions about what criticism should be allowed, and advocating instead for a liberal solution where all criticism is permitted but violence is always the perpetrator's sole responsibility.

acx
Jul 16, 2026 1,992 words 469 likes 579 comments Listen · 13 min Read Read

AI Chip Regulation Is Not A Dystopian Surveillance State

Scott Alexander argues that Plan A's proposed AI chip regulations are not a dystopian surveillance state, but rather comparable to existing regulations on controlled substances, and that most feared dystopian outcomes already exist in current banking and AI chat monitoring.

acx
Jul 15, 2026 3,889 words 208 likes 452 comments Listen · 24 min Read Read

Your Book Review: The Book Of Abraham

A deep dive into the Book of Abraham, focusing on how Joseph Smith's translations of Egyptian papyri were definitively proven false by Egyptologists, yet Mormonism continues to thrive—raising questions about whether instrumental rationality trumps epistemic rationality.

acx
Jul 8, 2026 16,711 words 318 likes 807 comments Listen · 105 min Read Read

The AI Superforecasters Are Here

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

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

Preliminary Thoughts On The Midjourney Scanner

Scott explains why Midjourney's new ultrasound tomography scanner, despite being technologically interesting, faces major medical limitations and is unlikely to replace existing imaging methods or enable useful whole-body screening without significant future AI improvements.

acx
Jun 19, 2026 4,009 words 293 likes 177 comments Listen · 24 min Read Read
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