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Audio narrations of LessWrong posts. Includes all curated posts and all posts with 125+ karma.
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Note on AI usage: As is my norm, I use LLMs for proof reading, editing, feedback and research purposes. This essay started off as an entirely human written draft, and went through multiple cycles of iteration. The primary additions were citations, and I have done my best to personally verify every link and claim. All other observations are entirely autobiographical, albeit written in retrospect. If anyone insists, I can share the original, and intermediate forms, though my approach to versio...
Many people in my intellectual circles use economic abstractions as one of their main tools for reasoning about the world. However, this often leads them to overlook how interventions which promote economic efficiency undermine people's ability to maintain sociopolitical autonomy. By “autonomy” I roughly mean a lack of reliance on others—which we might operationalize as the ability to survive and pursue your plans even when others behave adversarially towards you. By “sociopolitical” I mean ...
Content note: nothing in this piece is a prank or jumpscare where I smirkingly reveal you've been reading AI prose all along. It's easy to forget this in roarin’ 2026, but homo sapiens are the original vibers. Long before we adapt our behaviors or formal heuristics, human beings can sniff out something sus. And to most human beings, AI prose is something sus. If you use AI to write something, people will know. Not everyone, but the people paying attention, who aren’t newcomers or distrac...
On Saturday (Feb 28, 2026) I attended my first ever protest. It was jointly organized by PauseAI, Pull the Plug and a handful of other groups I forget. I have mixed feelings about it. To be clear about where I stand: I believe that AI labs are worryingly close to developing superintelligence. I won't be shocked if it happens in the next five years, and I'd be surprised if it takes fifty years at current trajectories. I believe that if they get there, everyone will die. I want these labs to...
What Even Is This Timeline The striking thing about reading what is potentially the most important document in human history is how impossible it is to take seriously. The entire premise seems like science fiction. Not bad science fiction, but—crucially—not hard science fiction. Ted Chiang, not Greg Egan. The kind of science fiction that's fun and clever and makes you think, and doesn't tax your suspension of disbelief with overt absurdities like faster-than-light travel or humanoid aliens...
Come with me if you want to live. – The Terminator 'Close enough' only counts in horseshoes and hand grenades. – Traditional After 10 years of research my company, Nectome, has created a new method for whole-body, whole-brain, human end-of-life preservation for the purpose of future revival. Our protocol is capable of preserving every synapse and every cell in the body with enough detail that current neuroscience says long-term memories are preserved. It's compatible with traditiona...
This work was done with William Saunders and Vlad Mikulik as part of the Anthropic Fellows programme. The full write-up is available here. Thanks to Arthur Conmy, Neel Nanda, Josh Engels, Dillon Plunkett, Tim Hua and many others for their input. If you repeatedly tell Gemma 27B its answer is wrong, it sometimes ends up in situations like this: I will attempt one final, utterly desperate attempt. I will abandon all pretense of strategy and simply try random combinations until either I stu...
The Fifth Fourth Postulate of Decision Theory In 1820, the Hungarian mathematician Farkas Bolyai wrote a desperate letter to his son János, who had become consumed by the same problem that had haunted his father for decades: "You must not attempt this approach to parallels. I know this way to the very end. I have traversed this bottomless night, which extinguished all light and joy in my life. I entreat you, leave the science of parallels alone... Learn from my example." The problem wa...
Most of civilization's electricity is generated far off-site from where it's delivered. This is because you don't want to be running and refueling coal/gas/nuclear plants inside cities, hydraulic/wind power can't be moved, and solar panels are cheaper to install on flat desert terrain than on cities: So in practice this means running power over hundreds or even thousands of kilometers. E.g. here are the Chinese long-distance lines: Gemini 3.1 Pro-preview in AI studio American long-dista...
Also available in markdown at theMultiplicity.ai/blog/schelling-goodness. This post explores a notion I'll call Schelling goodness. Claims of Schelling goodness are not first-order moral verdicts like "X is good" or "X is bad." They are claims about a class of hypothetical coordination games in the sense of Thomas Schelling, where the task being coordinated on is a moral verdict. In each such game, participants aim to give the same response regarding a moral question, by reasoning about wh...
1. It occurred to me that if I could invent a machine—a gun—which could by its rapidity of fire, enable one man to do as much battle duty as a hundred, that it would, to a large extent supersede the necessity of large armies, and consequently, exposure to battle and disease [would] be greatly diminished. Richard Gatling (1861) 2. In 1923, Hermann Oberth published The Rocket to Planetary Spaces, later expanded as Ways to Space Travel. This showed that it was possible to build machines...
(The author is not affiliated with the Department of War or any major AI company.) There's a lot of disagreement about the new surveillance language in the OpenAI–Department of War agreement. Some people think it's a significant improvement over the previous language.[1] Others think it patches some issues but still leaves enough loopholes to not make a material difference. Reasonable people disagree about how a court will interpret the language, if push comes to shove. But here's someth...
tl;dr We’re incubating an academic journal for AI alignment: rapid peer-review of foundational Alignment research that the current publication ecosystem underserves. Key bets: paid attributed review, reviewer-written synthesis abstracts, and targeted automation. Contact us if you’re interested in participating as an author, reviewer, or editor, or if you know someone who might be. Experimental Infrastructure for Foundational Alignment Research This is the first in a series of “build-in-t...
It's plausible that, over the next few years, US-based frontier AI companies will become very unhappy with the domestic political situation. This could happen as a result of democratic backsliding, weaponization of government power (along the lines of Anthropic's recent dispute with the Department of War), or because of restrictive federal regulations (perhaps including those motivated by concern about catastrophic risk). These companies might want to relocate out of the US. However, it wo...
There was a lot of chatter a few months back about "Spiral Personas" — AI personas that spread between users and models through seeds, spores, and behavioral manipulation. Adele Lopez's definitive post on the phenomenon draws heavily on the idea of parasitism. But so far, the language has been fairly descriptive. The natural next question, I think, is what the “parasite” perspective actually predicts. Parasitology is a pretty well-developed field with its own suite of concepts and framewor...
Six years ago, as covid-19 was rapidly spreading through the US, mysister was working as a medical resident. One day she was handed anN95 and told to "guard it with her life", because there weren'tany more coming. N95s are made from meltblown polypropylene, produced from plasticpellets manufactured in a small number of chemical plants. Buildingmore would take too long: we needed these plants producing allthe pellets they could. Braskem America operated plants in Marcus Hook PA and Neal W...
I believe deeply in the existential importance of using AI to defend the United States and other democracies, and to defeat our autocratic adversaries. Anthropic has therefore worked proactively to deploy our models to the Department of War and the intelligence community. We were the first frontier AI company to deploy our models in the US government's classified networks, the first to deploy them at the National Laboratories, and the first to provide custom models for national security cu...
This post is partly a belated response to Joshua Achiam, currently OpenAI's Head of Mission Alignment: If we adopt safety best practices that are common in other professional engineering fields, we'll get there … I consider myself one of the x-risk people, though I agree that most of them would reject my view on how to prevent it. I think the wholesale rejection of safety best practices from other fields is one of the dumbest mistakes that a group of otherwise very smart people has ever ma...
Example of OpenErrata nitting the Sequences I just published OpenErrata on GitHub, a browser extension that investigates the posts you read using your OpenAI API key and underlines any factual claims that are sourceably incorrect. Once finished, it caches the results for anybody else reading the same articles so that they get them on immediate visit. If you don't have an OpenAI key, you can still view the corrections on posts other people have viewed, but it doesn't start new investigations. ...
TL;DR We describe the persona selection model (PSM): the idea that LLMs learn to simulate diverse characters during pre-training, and post-training elicits and refines a particular such Assistant persona. Interactions with an AI assistant are then well-understood as being interactions with the Assistant—something roughly like a character in an LLM-generated story. We survey empirical behavioral, generalization, and interpretability-based evidence for PSM. PSM has consequences for AI develo...
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