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  • Would an interruption of the Gulf Stream be reversible? And if so, at what cost?

    May 20, 2008 2:12 AM

    I’m blessed with a very popular blog in French. One of the questions that came up lately in my dialogue with commentators is that of the reversibility of major ecological disasters induced by human activity and of the feasibility of reversing such disasters with the tools pertaining to our current technology.

    This is a serious […]

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    comment(s): Would an interruption of the Gulf Stream be reversible? And if so, at what cost?

  • The cunning of Reason

    Apr 23, 2008 11:53 PM

    The very justification of a Human Complex System’s approach to the operation of human societies, implying a continuous explanatory spectrum from the individual (particle) to the cultural or societal levels (field), is offered by Hegel when he writes in Reason in History (*) that

    … human actions in history produce additional results, beyond their […]

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  • A population dynamics approach to the subprime crisis

    Apr 18, 2008 2:23 AM

    One way of looking at the subprime crisis – and by this I mean only the properly real estate–based part of the unfolding drama – is in terms of population dynamics, in terms of three populations of borrowers who first entered the market and then left it in reverse order as the last to come […]

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  • The Implosion, Finance vs. the Economy

    Mar 31, 2008 6:26 PM

    My new book called “The Implosion, Finance vs. the Economy – What the subprime crisis reveals and foretells” (L’Implosion, La finance contre l’économie – Ce que révèle et annonce la crise des subprimes) will be published on May 4th. The publisher is Arthème Fayard, one of the top French publishers who will realize here a […]

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  • The reasoning artificial toddler

    Mar 12, 2008 2:11 AM

    I was interviewed earlier today by Richard Adhikari, a journalist at TechNewsWorld, about an Artificial Intelligence project. I didn’t know anything about that project except what would be the title of the article: “AI Program Thinks Like a 4-Year-Old”.

    There is an excellent summary of what I had told the journalist:

    “I’m always […]

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    comment(s): The reasoning artificial toddler

  • The end of trust in the subprime crisis and how to model it

    Mar 10, 2008 5:45 PM

    The subprime crisis is often explained in terms of trust: one day trust between financial counterparties vanished and here was a crisis. Explanations in terms of “market confidence” refer in fact to two distinct phenomena, one being indeed trust and the other one being more plainly straightforward profitability. Let me start with profitability. Subprime loans […]

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  • The subprime crisis at UCLA

    Mar 9, 2008 7:57 PM

    I’m happy with the way things worked out yesterday, March 8th, at the UCLA Complexity Science Conference with my paper: The Subprime Crisis: A Human Complex Systems Phenomenon.

    Of course, trying to squeeze the whole crisis into an hour (1 ¼ with John Bragin’s express permission), it turned out I had much too much […]

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    comment(s): The subprime crisis at UCLA

  • Pricing models: why the good ones are useless and the true ones, priceless

    Feb 20, 2008 9:10 PM

    I’ve mentioned already in Agents using financial models and the “human cognitive cocktail” a number of pitfalls linked to the task of modeling the subprime crisis in a Human Complex Systems perspective, especially those related to agents’ partial understanding of the models they’re using or in errors they’re making when using them. I’ve […]

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    comment(s): Pricing models: why the good ones are useless and the true ones, priceless

  • Agents using financial models and the “human cognitive cocktail”

    Feb 10, 2008 12:32 AM

    I’m working on the paper to be given at the Human Complex Systems’ one-day conference on March 8th. I don’t want to divulge prematurely any scoop but at the same time I’d like to share some of my puzzlement as I go, and as if thinking aloud.

    Rube […]</a/></a></p></p><p class="wp-block-post-excerpt__more-text"><a class="wp-block-post-excerpt__more-link" href="https://www.pauljorion.com/blog_en/2008/02/10/agents-using-financial-models-and-the-%e2%80%9chuman-cognitive-cocktail%e2%80%9d/">read more…</a></p></div>


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<a class="wp-block-read-more" href="https://www.pauljorion.com/blog_en/2008/02/10/agents-using-financial-models-and-the-%e2%80%9chuman-cognitive-cocktail%e2%80%9d/" target="_self">comment(s)<span class="screen-reader-text">: Agents using financial models and the “human cognitive cocktail”</span></a></div>



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<div class="wp-block-group is-layout-flow wp-block-group-is-layout-flow"><h2 class="alignwide wp-block-post-title has-var-wp-custom-typography-font-size-huge-clamp-2-25-rem-4-vw-2-75-rem-font-size"><a href="https://www.pauljorion.com/blog_en/2008/01/25/the-subprime-crisis-a-human-complex-system-phenomenon/" target="_self" >The subprime crisis: a human complex system phenomenon</a></h2>


<div class="wp-block-group is-content-justification-left is-nowrap is-layout-flex wp-container-core-group-is-layout-fc9f69e7 wp-block-group-is-layout-flex"><div class="wp-block-post-date"><time datetime="2008-01-25T04:22:18+01:00"><a href="https://www.pauljorion.com/blog_en/2008/01/25/the-subprime-crisis-a-human-complex-system-phenomenon/">Jan 25, 2008 4:22 AM</a></time></div></div>




<div class="wp-block-post-excerpt"><p class="wp-block-post-excerpt__excerpt"><p>I’ll be speaking at UCLA on Saturday March 8th, 2008 at the<br /> <strong>Human Complex Systems – UCLA Four Campus Complexity Conference</strong>,<br /> UCLA Haines Hall 352. The conference starts at 9 AM, my own talk is at 2:30 PM.</p> <p>If it looks like proposing an entirely new paradigm for financial studies, that’s because that’s […]</p></p><p class="wp-block-post-excerpt__more-text"><a class="wp-block-post-excerpt__more-link" href="https://www.pauljorion.com/blog_en/2008/01/25/the-subprime-crisis-a-human-complex-system-phenomenon/">read more…</a></p></div>


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<a class="wp-block-read-more" href="https://www.pauljorion.com/blog_en/2008/01/25/the-subprime-crisis-a-human-complex-system-phenomenon/" target="_self">comment(s)<span class="screen-reader-text">: The subprime crisis: a human complex system phenomenon</span></a></div>



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      1. Paul Jorion on Paris Defence and Strategy Forum – The Silent War and Strategic Mobilization in the Age of Infrastructure Warfare, March 12th 2025Sunday, February 16, 2025

        This article goes along with what I was writing. It turns out it was published one day earlier than my…

      2. Paul Jorion on A NEW “US” FOR NEW TIMES. XIII. Scaling upTuesday, November 12, 2024

        LLMs deal essentially with language but seems amenable to graphics as well. To such an extent that one may wonder…

      3. bogobogo on A NEW “US” FOR NEW TIMES. XIII. Scaling upFriday, November 8, 2024

        “the marvellous powers of the brain emerge not from any single, uniformly structured connectionist network but from highly evolved arrangements…

      4. Tom on Are Large Language Models (LLMs) capable of producing new concepts ? Palestine/Israel: the entangled narratives paradoxThursday, September 26, 2024

        When the entangled narrative is based on the Bible, the problem is the Bible.

      5. Paul Jorion on An Ambitious Project I. Making a choice: Claude’s consciousness and mineThursday, July 18, 2024

        I intend to read the Krichmar paper, thanks for mentioning it. I looked in my library, I’ve got a 1987…

      6. Grant Castillou on An Ambitious Project I. Making a choice: Claude’s consciousness and mineThursday, July 18, 2024

        It’s becoming clear that with all the brain and consciousness theories out there, the proof will be in the pudding.…

      7. aslan on Claude 3’s daydreaming (methinks something’s happened here!)Sunday, June 16, 2024

        Do Androids dream of electric sheeps ? Yes. Thanks Paul.

      8. Paul Jorion on L’Écho – Paul Jorion: “With AI, we have created something that is more intelligent than we are”, March 5th 2024 – Online versionSunday, April 14, 2024

        You say that A machine with only primary consciousness will probably have to come first. That’s the way evolution proceeded:…

      9. Grant Castillou on L’Écho – Paul Jorion: “With AI, we have created something that is more intelligent than we are”, March 5th 2024 – Online versionSaturday, April 13, 2024

        It’s becoming clear that with all the brain and consciousness theories out there, the proof will be in the pudding.…

      10. Paul Jorion on Video – 4 Doom ScenariosMonday, August 31, 2020

        I fear your views of AI are pretty much outdated. They pre-date in any case neural networks. What you are…

      Most recent posts

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      • Paris Defence and Strategy Forum – The Silent War and Strategic Mobilization in the Age of Infrastructure Warfare, March 12th 2025
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      My books

      L'avènement de la singularité
      Humanism and its Discontents
      Comment sauver le genre humain
      Comment sauver le genre humain
      Un objet populiste mal identifié
      Mes vacances à Morro Bay
       Défense et illustration du genre humain
       À quoi bon penser à l'heure du grand collapse ?
       Vers un nouveau monde
       Se débarrasser du capitalisme est une question de SURVIE
       Le dernier qui s'en va éteint la lumière
       Penser tout haut l’économie avec Keynes
      Penser l'économie autrement
      Comprendre les temps qui sont les nôtres 2007-2013
      La survie de l'espèce
      Misère de la pensée économique
      La Guerre civile numérique
      Le Capitalisme à l'agonie
      Le prix
      Comment la vérité et la réalité furent inventées
      L'argent, mode d'emploi
      La Crise
      L'implosion. La finance contre l'économie : ce que révèle et annonce la crise des subprimes
      La crise du capitalisme américain
      Investing a Post Enron World
      Principe des systèmes intelligents
      La transmission des savoirs
      Les pêcheurs d'Houat

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