LessWrong (30+ Karma)

LessWrong

Audio narrations of LessWrong posts.

  1. 5H AGO

    “Epistemic Spot Check: Expected Value of Donating to Alex Bores’s Congressional Campaign” by MichaelDickens

    Political advocacy is an important lever for reducing existential risk. One way to make political change happen is to support candidates for Congress. In October, Eric Neyman wrote Consider donating to Alex Bores, author of the RAISE Act. He created a cost-effectiveness analysis to estimate how donations to Bores's campaign change his probability of winning the election. It's excellent that he did that—it's exactly the sort of thing that we need people to be doing. We also need more people to check other people's cost-effectiveness estimates. To that end, in this post I will check Eric's work. I'm not going to talk about who Alex Bores is, why you might want to donate to his campaign, or who might not want to donate. For that, see Eric's post. Model outline The basic structure of Eric's model: Donations let the campaign spend more money on advertising, which increases how many votes they will get. The election has some probability of being close. If the election is close, then the expected value of votes is approximately linear. If the election is not close, then marginal votes don't matter at all. [...] --- Outline: (01:01) Model outline (04:09) Input parameters (04:13) Campaign spending per vote (05:53) Voter turnout (06:10) Margin of victory (06:59) Probability that your candidate is in the top two (07:18) Probability that your candidate is on the losing side (07:38) Opposition fundraising discount (08:21) Early fundraising multiplier (08:52) Sensitivity analysis (10:06) Cost to shift votes by one percentage point (10:50) The models output isnt what we care about The original text contained 14 footnotes which were omitted from this narration. --- First published: November 13th, 2025 Source: https://www.lesswrong.com/posts/HwHoJDcJpGABQiPJc/epistemic-spot-check-expected-value-of-donating-to-alex --- Narrated by TYPE III AUDIO.

    12 min
  2. 11H AGO

    “Weight-sparse transformers have interpretable circuits” by leogao

    TL;DR: We develop a novel method for finding interpretable circuits in Transformers, by training them to have sparse weights. This results in models that contain very high quality circuits: our circuits are global rather than datapoint dependent; we explain the circuit down to very granular objects, like individual neurons and attention channels, rather than entire MLP layers, attention heads, or groups of nodes; and the circuits are often simple enough to draw in their entirety on a whiteboard. The downside is that our method produces de novo sparse language models, which are extremely expensive to train and deploy, making it unlikely that we will ever be able to use this method to directly pretrain frontier models. We share preliminary results on using sparse models to explain an existing dense model, but our main theory of impact is to eventually scale our method to train a fully interpretable moderate-sized model. If we could fully interpret even (say) a GPT-3 level intelligence, it could aid dramatically in developing a theory of cognition in general. [Blog] [Paper] [Code] Abstract Finding human-understandable circuits in language models is a central goal of the field of mechanistic interpretability. We train models to have more understandable [...] --- First published: November 13th, 2025 Source: https://www.lesswrong.com/posts/yQMQXFAK4mfJjHBpN/weight-sparse-transformers-have-interpretable-circuits --- Narrated by TYPE III AUDIO.

    3 min
  3. 18H AGO

    “What’s so hard about...? A question worth asking” by Ruby

    There's a wide range of tasks that most people get why they’re hard. And then there are activities where I think a lot of people might think to themselves “what's so hard about that?” On the one end of the continuum, you can have a visceral sense of the difficulty of a given task. On the other, you’ve never even given any thought. Things that people appreciate are hard: playing basketball well, solving math puzzles, drawing lifelike pictures, memorizing human anatomy. The commonality here, I think, is that these are the kinds of activities that most people have some experience with. A typical school experience will have you try these all out and you will find that throwing a ball with exactly the right force in exactly the right direction is tricky. Even something that is pretty foreign to people, let's say “rocket science”, might feel hard because people know it involves physics and math, and they’ve tried doing some physics and math. In contrast, there are tasks that, not having tried them, people don’t feel like that should be that hard. That includes me. Until I fired a gun for the first time, I did not appreciate the [...] The original text contained 3 footnotes which were omitted from this narration. --- First published: November 13th, 2025 Source: https://www.lesswrong.com/posts/qnMwwwzmnfaQHvymc/what-s-so-hard-about-a-question-worth-asking --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.

    5 min
  4. 19H AGO

    “Paranoia rules everything around me” by habryka

    People sometimes make mistakes [citation needed]. The obvious explanation for most of those mistakes is that decision makers do not have access to the information necessary to avoid the mistake, or are not smart/competent enough to think through the consequences of their actions. This predicts that as decision-makers get access to more information, or are replaced with smarter people, their decisions will get better. And this is substantially true! Markets seem more efficient today than they were before the onset of the internet, and in general decision-making across the board has improved on many dimensions. But in many domains, I posit, decision-making has gotten worse, despite access to more information, and despite much larger labor markets, better education, the removal of lead from gasoline, and many other things that should generally cause decision-makers to be more competent and intelligent. There is a lot of variance in decision-making quality that is not well-accounted for by how much information actors have about the problem domain, and how smart they are. I currently believe that the factor that explains most of this remaining variance is "paranoia", in-particular the kind of paranoia that becomes more adaptive as your environment gets [...] --- Outline: (01:31) A market for lemons (05:02) Its lemons all the way down (06:15) Fighter jets and OODA loops (08:23) The first thing you try is to blind yourself (13:37) The second thing you try is to purge the untrustworthy (20:55) The third thing to try is to become unpredictable and vindictive --- First published: November 13th, 2025 Source: https://www.lesswrong.com/posts/yXSKGm4txgbC3gvNs/paranoia-rules-everything-around-me --- Narrated by TYPE III AUDIO.

    23 min

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Audio narrations of LessWrong posts.

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