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LessWrong (Curated & Popular)

Audio narrations of LessWrong posts. Includes all curated posts and all posts with 125+ karma.If you"d like more, subscribe to the “Lesswrong (30+ karma)” feed.

technology philosophy

All Episodes

17:46

"Life at the Frontlines of Demographic Collapse" by...

LessWrong (Curated & Popular) ·

2026/02/14

Nagoro, a depopulated village in Japan where residents are replaced by dolls. In 1960, Yubari, a former coal-mining city on Japan's northern island of Hokkaido, had roughly 110,000 residents. Today, fewer than 7,000 remain. The share of those over 65 is 54%. The local train stopped running in 2019. Seven elementary schools and four junior high schools have been consolidated into just two buildings. Public swimming pools have closed. Parks are not maintained. Even the public toilets at the tra...

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9:03

"Why You Don’t Believe in Xhosa Prophecies" by...

LessWrong (Curated & Popular) ·

2026/02/14

Based on a talk at the Post-AGI Workshop. Also on Boundedly Rational Does anyone reading this believe in Xhosa cattle-killing prophecies? My claim is that it's overdetermined that you don’t. I want to explain why — and why cultural evolution running on AI substrate is an existential risk. But first, a detour. Crosses on Mountains When I go climbing in the Alps, I sometimes notice large crosses on mountain tops. You climb something three kilometers high, and there's this cross. Th...

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26:57

"Weight-Sparse Circuits May Be Interpretable Yet...

LessWrong (Curated & Popular) ·

2026/02/13

TLDR: Recently, Gao et al trained transformers with sparse weights, and introduced a pruning algorithm to extract circuits that explain performance on narrow tasks. I replicate their main results and present evidence suggesting that these circuits are unfaithful to the model's “true computations”. This work was done as part of the Anthropic Fellows Program under the mentorship of Nick Turner and Jeff Wu. Introduction Recently, Gao et al (2025) proposed an exciting approach to training ...

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20:26

"My journey to the microwave alternate timeline" by...

LessWrong (Curated & Popular) ·

2026/02/11

Cross-posted from Telescopic Turnip Recommended soundtrack for this post As we all know, the march of technological progress is best summarized by this meme from Linkedin: Inventors constantly come up with exciting new inventions, each of them with the potential to change everything forever. But only a fraction of these ever establish themselves as a persistent part of civilization, and the rest vanish from collective consciousness. Before shutting down forever, though, the alternate b...

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23:19

"Stone Age Billionaire Can’t Words Good" by Eneasz

LessWrong (Curated & Popular) ·

2026/02/10

I was at the Pro-Billionaire march, unironically. Here's why, what happened there, and how I think it went. Me on the far left. From WSJ. I. Why? There's a genre of horror movie where a normal protagonist is going through a normal day in a normal life. Ten minutes into the movie his friends bring out a struggling kidnap victim to slaughter, and they look at him like this is just a normal Tuesday and he slowly realizes that either he's surrounded by complete psychopaths or the world is ...

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6:36

"On Goal-Models" by Richard_Ngo

LessWrong (Curated & Popular) ·

2026/02/10

I'd like to reframe our understanding of the goals of intelligent agents to be in terms of goal-models rather than utility functions. By a goal-model I mean the same type of thing as a world-model, only representing how you want the world to be, not how you think the world is. However, note that this still a fairly inchoate idea, since I don't actually know what a world-model is. The concept of goal-models is broadly inspired by predictive processing, which treats both beliefs and goals as...

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7:13

"Prompt injection in Google Translate reveals base...

LessWrong (Curated & Popular) ·

2026/02/09

tl;dr Argumate on Tumblr found you can sometimes access the base model behind Google Translate via prompt injection. The result replicates for me, and specific responses indicate that (1) Google Translate is running an instruction-following LLM that self-identifies as such, (2) task-specific fine-tuning (or whatever Google did instead) does not create robust boundaries between "content to process" and "instructions to follow," and (3) when accessed outside its chat/assistant context, the mod...

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28:01

"Near-Instantly Aborting the Worst Pain Imaginable...

LessWrong (Curated & Popular) ·

2026/02/08

Psychedelics are usually known for many things: making people see cool fractal patterns, shaping 60s music culture, healing trauma. Neuroscientists use them to study the brain, ravers love to dance on them, shamans take them to communicate with spirits (or so they say). But psychedelics also help against one of the world's most painful conditions — cluster headaches. Cluster headaches usually strike on one side of the head, typically around the eye and temple, and last between 15 minutes a...

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16:38

"Post-AGI Economics As If Nothing Ever Happens" by...

LessWrong (Curated & Popular) ·

2026/02/07

When economists think and write about the post-AGI world, they often rely on the implicit assumption that parameters may change, but fundamentally, structurally, not much happens. And if it does, it's maybe one or two empirical facts, but nothing too fundamental. This mostly worked for all sorts of other technologies, where technologists would predict society to be radically transformed e.g. by everyone having most of humanity's knowledge available for free all the time, or everyone havi...

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50:18

"IABIED Book Review: Core Arguments and...

LessWrong (Curated & Popular) ·

2026/02/05

The recent book “If Anyone Builds It Everyone Dies” (September 2025) by Eliezer Yudkowsky and Nate Soares argues that creating superintelligent AI in the near future would almost certainly cause human extinction: If any company or group, anywhere on the planet, builds an artificial superintelligence using anything remotely like current techniques, based on anything remotely like the present understanding of AI, then everyone, everywhere on Earth, will die. The goal of this post is to sum...

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11:39

"Anthropic’s “Hot Mess” paper overstates its case...

LessWrong (Curated & Popular) ·

2026/02/04

Author's note: this is somewhat more rushed than ideal, but I think getting this out sooner is pretty important. Ideally, it would be a bit less snarky. Anthropic[1] recently published a new piece of research: The Hot Mess of AI: How Does Misalignment Scale with Model Intelligence and Task Complexity? (arXiv, Twitter thread). I have some complaints about both the paper and the accompanying blog post. tl;dr The paper's abstract says that "in several settings, larger, more capable mod...

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6:54

"Conditional Kickstarter for the “Don’t Build It”...

LessWrong (Curated & Popular) ·

2026/02/03

tl;dr: You can pledge to join a big protest to ban AGI research at ifanyonebuildsit.com/march, which only triggers if 100,000 people sign up. The If Anyone Builds It website includes a March page, wherein you can pledge to march in Washington DC, demanding an international treaty to stop AGI research if 100,000 people in total also pledge. I designed the March page (although am not otherwise involved with March decisionmaking), and want to pitch people on signing up for the "March Kickst...

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8:40

"How to Hire a Team" by Gretta Duleba

LessWrong (Curated & Popular) ·

2026/02/01

A low-effort guide I dashed off in less than an hour, because I got riled up. Try not to hire a team. Try pretty hard at this. Try to find a more efficient way to solve your problem that requires less labor – a smaller-footprint solution. Try to hire contractors to do specific parts that they’re really good at, and who have a well-defined interface. Your relationship to these contractors will mostly be transactional and temporary. If you must, try hiring just one person, a very smart, ca...

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16:43

"The Possessed Machines (summary)" by L Rudolf L

LessWrong (Curated & Popular) ·

2026/01/29

The Possessed Machines is one of the most important AI microsites. It was published anonymously by an ex- lab employee, and does not seem to have spread very far, likely at least partly due to this anonymity (e.g. there is no LessWrong discussion at the time I'm posting this). This post is my attempt to fix that. I do not agree with everything in the piece, but I think cultural critiques of the "AGI uniparty" are vastly undersupplied and incredibly important in modeling & fixing the cu...

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26:17

"Ada Palmer: Inventing the Renaissance" by Martin...

LessWrong (Curated & Popular) ·

2026/01/28

Papal election of 1492 For over a decade, Ada Palmer, a history professor at University of Chicago (and a science-fiction writer!), struggled to teach Machiavelli. “I kept changing my approach, trying new things: which texts, what combinations, expanding how many class sessions he got…” The problem, she explains, is that “Machiavelli doesn’t unpack his contemporary examples, he assumes that you lived through it and know, so sometimes he just says things like: Some princes don’t have to work t...

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20:16

"AI found 12 of 12 OpenSSL zero-days (while curl...

LessWrong (Curated & Popular) ·

2026/01/28

This is a partial follow-up to AISLE discovered three new OpenSSL vulnerabilities from October 2025. TL;DR: OpenSSL is among the most scrutinized and audited cryptographic libraries on the planet, underpinning encryption for most of the internet. They just announced 12 new zero-day vulnerabilities (meaning previously unknown to maintainers at time of disclosure). We at AISLE discovered all 12 using our AI system. This is a historically unusual count and the first real-world demonstration o...

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114:18

"Dario Amodei – The Adolescence of Technology" by...

LessWrong (Curated & Popular) ·

2026/01/28

Dario Amodei, CEO of Anthropic, has written a new essay on his thoughts on AI risk of various shapes. It seems worth reading, even if just for understanding what Anthropic is likely to do in the future. Confronting and Overcoming the Risks of Powerful AI There is a scene in the movie version of Carl Sagan's book Contact where the main character, an astronomer who has detected the first radio signal from an alien civilization, is being considered for the role of humanity's representative ...

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21:53

"AlgZoo: uninterpreted models with fewer than 1,500...

LessWrong (Curated & Popular) ·

2026/01/27

Audio note: this article contains 78 uses of latex notation, so the narration may be difficult to follow. There's a link to the original text in the episode description. This post covers work done by several researchers at, visitors to and collaborators of ARC, including Zihao Chen, George Robinson, David Matolcsi, Jacob Stavrianos, Jiawei Li and Michael Sklar. Thanks to Aryan Bhatt, Gabriel Wu, Jiawei Li, Lee Sharkey, Victor Lecomte and Zihao Chen for comments. In the wake of recent d...

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11:05

"Does Pentagon Pizza Theory Work?" by rba

LessWrong (Curated & Popular) ·

2026/01/27

As soon as modern data analysis became a thing, the US government has had to deal with people trying to use open source data to uncover its secrets. During the early Cold War days and America's hydrogen bomb testing, there was an enormous amount of speculation about how the bombs actually worked. All nuclear technology involves refinement and purification of large amounts of raw substances into chemically pure substances. Armen Alchian was an economist working at RAND and reasoned that any...

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3:27

"The inaugural Redwood Research podcast" by Buck,...

LessWrong (Curated & Popular) ·

2026/01/27

After five months of me (Buck) being slow at finishing up the editing on this, we’re finally putting out our inaugural Redwood Research podcast. I think it came out pretty well—we discussed a bunch of interesting and underdiscussed topics and I’m glad to have a public record of a bunch of stuff about our history. Tell your friends! Whether we do another one depends on how useful people find this one. You can watch on Youtube here, or as a Substack podcast. Notes on editing the podcast with...

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518 results

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