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What Happened With Bio Anchors?

Scott explains why Ajeya Cotra's influential 'Biological Anchors' report correctly predicted the AI scaling boom but got AGI timelines wrong by twenty years, due to severely underestimating the rate of algorithmic progress.

acx
Feb 12, 2026 4,045 words 181 likes 269 comments Listen · 25 min Read Read

Book Review: If Anyone Builds It, Everyone Dies

Scott reviews a new book by Yudkowsky and Soares that makes an uncompromising case for halting AI development to prevent human extinction, analyzing both its arguments and its potential impact as a call to action.

acx
Sep 11, 2025 7,096 words 488 likes 1,058 comments Listen · 43 min Read Read

CHAI, Assistance Games, And Fully-Updated Deference

Scott Alexander explains and analyzes the debate between MIRI and CHAI on AI alignment strategies, focusing on the challenges and potential flaws in CHAI's 'assistance games' approach.

acx
Oct 3, 2022 5,459 words 68 likes 417 comments Listen · 42 min Read Read

Yudkowsky Contra Christiano On AI Takeoff Speeds

Scott Alexander summarizes a debate between Yudkowsky and Christiano on whether AI progress will be gradual or sudden, exploring their key arguments and implications.

acx
Apr 4, 2022 8,479 words 91 likes 573 comments Listen · 63 min Read Read

Biological Anchors: A Trick That Might Or Might Not Work

Scott Alexander reviews competing methodologies for predicting AI timelines, focusing on Ajeya Cotra's biological anchors approach and Eliezer Yudkowsky's critique.

acx
Feb 23, 2022 11,126 words 142 likes 368 comments Listen · 71 min Read Read

Highlights From The Comments On Acemoglu And AI

Scott Alexander responds to comments on his AI risk post, discussing AI self-awareness, narrow vs. general AI, catastrophe probabilities, and research priorities.

acx
Aug 6, 2021 5,613 words 57 likes 356 comments Listen · 34 min Read Read

Book Review: The New Sultan

Scott Alexander reviews a book on Erdogan's rise to power in Turkey, analyzing the factors that led to democratic backsliding and considering lessons for other democracies.

acx
Mar 18, 2021 7,803 words 219 likes 830 comments Listen · 50 min Read Read

A Maximally Lazy Guide To Giving To Charity In 2019

Scott Alexander offers a guide for lazy people to donate to effective charities, ranging from easy options like EA Funds to more specific recommendations in various cause areas.

ssc
Dec 22, 2019 1,213 words 0 likes 181 comments Listen · 9 min Read Read

Some Clarifications On Rationalist Blogging

Scott Alexander clarifies that his blog Slate Star Codex is not strictly representative of the rationalist community, and addresses common misconceptions about the blog's relationship to rationalism and effective altruism.

ssc
Jul 4, 2019 665 words 0 likes 204 comments Listen · 6 min Read Read

Links 12/18: Boughs Of Hollink

Scott Alexander presents a diverse collection of interesting news items, scientific findings, and cultural observations, covering topics from archaeology to economics to social issues.

ssc
Dec 25, 2018 2,960 words 0 likes 644 comments Read Read

Links 12/17: Silent Site, Holy Site

Scott Alexander shares a diverse collection of interesting links covering topics from architecture to AI, with brief summaries and occasional humorous commentary.

ssc
Dec 18, 2017 1,417 words 0 likes 433 comments Read Read

Links 10/17: Martin LuthURL

A collection of interesting links covering topics from ancient Roman demographics to modern AI developments, criminal justice issues, and cultural oddities.

ssc
Oct 30, 2017 2,116 words 0 likes 428 comments Read Read

How Does Recent AI Progress Affect The Bostromian Paradigm?

Scott Alexander examines how recent AI progress in neural networks might challenge the Bostromian paradigm of AI risk, exploring potential implications for AI goal alignment and motivation systems.

ssc
Oct 30, 2016 2,240 words 0 likes 141 comments Read Read

Links 9/16: URL Of The Chaldees

A links post featuring stories about AI research, scientific studies, historical oddities, and current events, ranging from antibacterials in soap to disco riots at baseball games.

ssc
Sep 15, 2016 1,531 words 0 likes 854 comments Read Read

Links 7/16: Peter Linklage

A collection of interesting links covering various topics from scientific studies, social issues, and current events, including problems with brain imaging studies, AI safety developments, and surprising research findings.

ssc
Jul 7, 2016 1,933 words 0 likes 814 comments Read Read

Links 3/16: Klapaucius And URL

A Links post presenting various interesting news and studies from different fields, with brief commentary on each item.

ssc
Mar 26, 2016 3,366 words 0 likes 970 comments Read Read

Links 12/15: Winter Wond-URL-and

Scott shares and comments on various links covering topics like startups, science, academia, social issues and charitable giving, with a focus on rationalist and effective altruist causes.

ssc
Dec 18, 2015 2,477 words 0 likes 678 comments Read Read

Stop Adding Zeroes

Scott Alexander critiques Dylan Matthews' argument against prioritizing existential risk reduction, arguing that Matthews misuses probabilities and that his logic could also undermine other effective altruist causes.

ssc
Aug 12, 2015 2,492 words 0 likes 427 comments Read Read

Links 7/15: From Link, Where Rocky Peaks Climb Bleak And Bare

A collection of interesting links covering various topics from scientific studies and economic policies to cultural oddities, with particular focus on deworming program controversies and workplace discrimination research.

ssc
Jul 24, 2015 1,865 words 0 likes 505 comments Read Read

AI Researchers On AI Risk

Scott Alexander provides evidence that many prominent AI researchers are concerned about AI risk, contrary to claims in some popular articles.

ssc
May 22, 2015 5,524 words 0 likes 517 comments Read Read

Links 2/15: Land of Linkin’

A collection of interesting links covering various topics including medical discoveries, scientific studies, social issues, and economic findings, with brief commentary on each.

ssc
Feb 19, 2015 2,217 words 0 likes 450 comments Read Read

Links 11/14: I Link, Therefore I Am

Scott shares a collection of interesting links covering various topics from American chestnut restoration to scientific findings, political events, and cultural observations.

ssc
Nov 23, 2014 2,067 words 0 likes 353 comments Read Read

More Links For November 2014

Scott shares a diverse collection of links and brief commentaries on scientific studies, political news, cultural phenomena, and personal observations across various fields.

ssc
Nov 8, 2014 3,094 words 0 likes 302 comments Read Read

Tumblr on MIRI

The post analyzes a debate about the effectiveness of MIRI, an AI safety organization, focusing on critiques of their academic output and defenses of their outreach efforts.

ssc
Oct 7, 2014 7,446 words 0 likes 344 comments Read Read

Not Even A Real Links Post, Just A Blatant Ad

Scott Alexander promotes a charity event, encouraging donations to MIRI or Sankara Eye Foundation to help them win valuable services.

ssc
May 6, 2014 213 words 0 likes 21 comments Read Read
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