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Posts by Joel Z Leibo

great paper to point to now when referencing this top-down influence. I think finding out how to tease its effects apart from those of the bottom-up agent planning influence will lead to real advances in understanding and modelling social systems.

4 weeks ago 4 2 1 0

Thanks Max!

4 weeks ago 2 0 0 0
A Theory of Appropriateness That Accounts for Norms of Rationality We propose a society-first theory of normative appropriateness where individuals, modeled as pre-trained actors with cognitive architectures analogous to Large Language Models (LLMs), generate behavio...

Paper link: doi.org/10.48550/arX...

4 weeks ago 3 0 0 0

Authors: @jzleibo.bsky.social , Sasha Vezhnevets, @manfreddiaz.bsky.social , John Agapiou, Wil Cunningham, Peter Sunehag, Logan Cross, Raphael Koster, @minsuk.bsky.social , @iyadrahwan.bsky.social , James Evans

4 weeks ago 7 0 1 0

The paper aims to bridge cognitive science, sociology, and AI.

We model individuals with LLMs not to claim humans are literally chatbots, but to develop a parsimonious model of culturally competent agents with behavior shaped by memory, context, identity, and social interaction.

4 weeks ago 7 0 2 0

In this view, rationality is a ๐œ๐ฎ๐ฅ๐ญ๐ฎ๐ซ๐š๐ฅ๐ฅ๐ฒ ๐œ๐จ๐ง๐ญ๐ข๐ง๐ ๐ž๐ง๐ญ ๐ง๐จ๐ซ๐ฆ๐š๐ญ๐ข๐ฏ๐ž ๐ฉ๐ซ๐š๐œ๐ญ๐ข๐œ๐ž, not a primordial basis of behavior. Weighing options and maximizing value is a real and important strategy, but it is just one ๐˜ญ๐˜ฆ๐˜ข๐˜ณ๐˜ฏ๐˜ฆ๐˜ฅ decision logic among others.

4 weeks ago 6 0 1 0

The paper distinguishes between ๐ž๐ฑ๐ฉ๐ฅ๐ข๐œ๐ข๐ญ ๐ง๐จ๐ซ๐ฆ๐ฌ (articulable rules/scripts) and ๐ข๐ฆ๐ฉ๐ฅ๐ข๐œ๐ข๐ญ ๐ง๐จ๐ซ๐ฆ๐ฌ (automatic, hard-to-verbalize guides). This distinction explains why appropriate conduct is typically fast and habitual, yet open to deliberate revision.

4 weeks ago 5 0 1 0

This gives us a unified way to explain five major stylized facts about norms:

1. context dependence
2. arbitrariness
3. automaticity
4. dynamism
5. sanctioning

Why norms vary with culture/situation, can be arbitrary, feel intuitive, change quickly, and hold social force.

4 weeks ago 5 0 1 0

The core idea is simple:

Human action can often be modeled as predictive pattern completion over social context. In effect, people act by answering questions like:

โ€œWhat does a person such as I do in a situation such as this?โ€

(March & Olsen 2011)

4 weeks ago 7 0 1 0
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New paper: โ€œ๐€ ๐“๐ก๐ž๐จ๐ซ๐ฒ ๐จ๐Ÿ ๐€๐ฉ๐ฉ๐ซ๐จ๐ฉ๐ซ๐ข๐š๐ญ๐ž๐ง๐ž๐ฌ๐ฌ ๐“๐ก๐š๐ญ ๐€๐œ๐œ๐จ๐ฎ๐ง๐ญ๐ฌ ๐Ÿ๐จ๐ซ ๐๐จ๐ซ๐ฆ๐ฌ ๐จ๐Ÿ ๐‘๐š๐ญ๐ข๐จ๐ง๐š๐ฅ๐ข๐ญ๐ฒโ€

Agent-based models of social order work better when agents act by predictive pattern completion from prefix (culture/context) to suffix (action) than when they act through expected value maximization

4 weeks ago 34 11 4 1
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Another possible evolutionary path is one where an ecosystem of agents is designed so well that the interactions between them have the same sort of entertainment value for spectators as reality TV or fiction does. (Spectators might also be participants at times: the Westworld model.)

2 months ago 15 1 2 0

๐Ÿ’ฏ

2 months ago 1 0 0 0

Words like 'consciousness' give off very individualistic vibes.

The real action is in the "cultural politics" that gives meaning to the word. Moltbook is appealing as an idea to anyone for whom this sort of multi-agent / social intelligence / society-first viewpoint is appealing.

2 months ago 1 0 0 0
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To anyone encountering Moltbook this week and wondering about AI personhood, consciousness, sentience, etc---we published a very relevant paper in October: A Pragmatic View of AI Personhood.

arxiv.org/abs/2510.26396

2 months ago 27 6 2 0

I liked everything about that movie except the essentialism

3 months ago 2 0 0 0
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The exemplar of superhuman A.I. performance to date
www.nytimes.com/2025/12/02/o...

4 months ago 91 22 11 4
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Many Fighting Climate Change Worry They Are Losing the Information War

Itโ€™s not about information, itโ€™s about identity.

Itโ€™s not โ€œmisinformationโ€, itโ€™s propaganda.

The bullshit machine is well-funded & understands the value of networked amplification.

As long as thereโ€™s no personal cost to lying or holding false belief, they will.

www.nytimes.com/2025/11/30/c...

4 months ago 129 29 6 0
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Yes, in part. I think the parasocial relationship to fiction writers is stronger than to (say) illustrators or stock photographers (though not fine art).

But more centrally I mean that a lot of writing โ€” including utilitarian stuff like reports โ€” matters because it expresses someoneโ€™s stance. +

4 months ago 8 1 2 0
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This chart (which applies even more to social media than it did to TV) lives in my head rent free.

Social media enveloping traditional media means everything and everyone is now competing in the entertainment market. Boring stuff like policy that affects millions of lives doesnโ€™t stand a chance.

4 months ago 504 173 16 22

Interesting mystery. It is known that animals can learn to control neurons pretty much anywhere in the brain. But they can not learn to ignore hunger which probably means they can't turn of hunger sensing neurons. How is that avoided in the brain? They even have DA inputs.

4 months ago 23 2 14 0

Is our self-conception as homo faber / "tool-using animals" just because stone endures better than behavior?

If we had ethnographic records of australopithecines, H. erectus, &c, would all the stages between simian communication and "language" add up to a story more fascinating than flint?

5 months ago 67 7 4 4
What Is Intelligence?: Lessons from AI About Evolution, Computing, and Minds (Antikythera): Aguera y Arcas, Blaise: 9780262049955: Amazon.com: Books What Is Intelligence?: Lessons from AI About Evolution, Computing, and Minds (Antikythera) [Aguera y Arcas, Blaise] on Amazon.com. *FREE* shipping on qualifying offers. What Is Intelligence?: Lessons ...

These ideas are also at the heart of my new book "What Is Intelligence?" (out via @mitpress.bsky.social & Antikythera), where I explore how human-technology symbiosis may be the latest Major Evolutionary Transition: bit.ly/3H1p8F6

5 months ago 2 1 0 0

dream-logic is more powerful than logic-logic and oral cultures must encode knowledge into powerful meme-spells newsletter.squishy.computer/p/llms-and-h...

5 months ago 48 11 4 0
John Milton from Areopagitica.

John Milton from Areopagitica.

Like, even before JS Mill gave us a utilitarian ("net upside") argument to justify freedom of speech, there was an older intuition that banning symbols risks doing violence to thought itself, and ought to be approached with "warinesse."

5 months ago 8 1 0 0
Student Researcher, PhD, Winter/Summer 2026 โ€” Google Careers

I'm hiring a student researcher for next summer at the intersection of MARL x LLM. If you're a phd student with experience in MARL algorithm research, please apply and drop me an email so that I know you've applied! www.google.com/about/career...

5 months ago 11 4 1 1
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I've managed it a few times..! Though not too many

5 months ago 1 0 0 0

Noticed that my latest paper announcement got much more attention on Bluesky than twitter, first time that happened in my experience

5 months ago 9 0 2 0
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Exploring a space-based, scalable AI infrastructure system design

Today my colleagues in the Paradigms of Intelligence team have announced Project Suncatcher:

research.google/blog/explori...

tl;dr: How can we put datacentres in space where solar energy is near limitless? Requires changes to current practices (due to radiation and bandwidth issues).

๐Ÿงช #MLSky

5 months ago 24 3 3 0

My favorite part of pragmatism is when itโ€™s like โ€œmaybe instead of worrying about shit that doesnโ€™t matter we should worry about shit that does.โ€

โ€œOh and btw weโ€™ll learn a lot more about the shit that doesnโ€™t in the process anyway.โ€ ๐Ÿซฃ

5 months ago 13 1 0 0

This paper is a great exposition of how "personhood" doesn't need to be, and in fact should not be, all-or-nothing or grounded in abstruse, ill-defined metaphysical properties. As I argued in my recent @theguardian.com essay, we can and should prepare now: www.theguardian.com/commentisfre...

5 months ago 7 2 0 0