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    Julian Togelius

    togelius.blogspot.com · Personal blog · on HN since 2009

    Julian Togelius, an AI and games researcher, writes about game AI, research practice and the limits of claims about AGI.

    Visit blogRSSHN submissions
    AI & Machine LearningGamesScience
    What HN says

    HN commenters cite him for measured views on neural game engines like Genie 3 and on game AI, and treat him as a credible expert.

    Stats for nerds
    38HN people shared it
    64linked in comments
    1.2Kstory points
    Aug 2025last shared
    2016people per year2025

    Top posts on HN

    1. 1
      The differences between tinkering and research (2016)
      3 people · 330 points · first shared 2016 · 129 comments on HN
    2. 2
      Video games are essential for inventing artificial intelligence
      3 people · 253 points · first shared 2016 · 130 comments on HN
    3. 3
      A way to deal with enormous branching factors in strategy games
      1 person · 119 points · first shared 2016 · 45 comments on HN
    4. 4
      The Curse of Increasing Marginal Work Utility, or Why I Work So Much
      1 person · 111 points · first shared 2014 · 62 comments on HN
    5. 5
      Empiricism and the limits of gradient descent
      1 person · 108 points · first shared 2018 · 44 comments on HN
    6. 6
      Algorithms that select which algorithm should play which game
      1 person · 64 points · first shared 2016 · 22 comments on HN
    7. 7
      Human intelligence is overrated (2012)
      1 person · 59 points · first shared 2016 · 91 comments on HN
    8. 8
      Apology for Video Games Research
      2 people · 43 points · first shared 2022 · 14 comments on HN
    9. 9
      Star Trek, The Culture, and the meaning of life
      1 person · 16 points · first shared 2025 · 5 comments on HN
    10. 10
      Some advice for journalists writing about artificial intelligence
      3 people · 11 points · first shared 2017 · Discussion on HN

    What HN people wrote when they linked it

    • 1wuApr 2018

      Thanks for the commentary togelius [1, 2] and deepnet [above].

      Anyone interested in adding a soupçon of scholarship to Seth's project?

      Words do mean different things to different people, in different contexts..

      There is a recent body of literature that explores the modern "maker" [3] movement. However, "maker" as a term may not have been a good fit for the OP's argument [1], which contrasted (academic) researchers with so-called "tinkerers".

      An alternative term for "tinkerer" might be "bricoleur", a loanword from French. (Roughly, it still means one who tinkers: https://en.wikipedia.org/wiki/Bricolage but has other meanings depending on the academic lens.)

      Given that we are discussing AIs that play, in the context of education, we can also go back to Seymour Papert's work on https://en.wikipedia.org/wiki/Constructionism_(learning_theory) .

      Originally known for work on _Perceptrons_ with Marvin Minsky, AI researcher Papert later adapted theories from education towards the vision of "learning-by-making" and the (young) bricoleur [4]. This can approach can be seen in the evolution from 1960s graphical [turtle] https://en.wikipedia.org/wiki/Logo_%28programming_language%29 to Lego https://en.wikipedia.org/wiki/Mindstorms_(book) to
      modern day efforts to encourage coding-for-kids [5,6,7].

      One of Papert's later collaborators, Sherry Turkel, discusses bricolage as it applies to programming -- https://en.wikipedia.org/wiki/Bricolage#Internet .

      When it comes to early…

    • halflingsDec 2016

      It's true that game AI is surprisingly under-developped compared to what you see in academia on other topics... but it is not always that basic.

      What you describe in your football example is often called "Behavior Tree", and there are ways to learn those using machine learning (usually by reinforcement learning, using neural networks and/or genetic programming). There was a popular video showing this applied on Mario [1] ... and a paper published 7 years before that video doing the same thing [2] (more context about this in [3]). I remember seeing something on Gamasutra saying that similar methods are used in some AAA games.

      [1] https://www.youtube.com/watch?v=qv6UVOQ0F44
      [2] http://julian.togelius.com/Togelius2009Super.pdf
      [3] http://togelius.blogspot.co.uk/2016/04/the-differences-between-tinkering-and.html

    • CybioteAug 2016

      Some of these functions are easy to compose to get something impressive, true. But that is not often the case. Take the case for games and imagine we wanted a meta-algorithm to select an algorithm to apply to each game. The intelligence would then shift into, how does one select the correct algorithm for the current game in the shortest time possible?

      There was a recent blog post covering this and the difficulties involved:

      http://togelius.blogspot.ca/2016/08/algorithms-that-select-which-algorithm.html

      I also posted a link (https://arxiv.org/pdf/1604.00289v2.pdf) above which is an easily readable exposition on just how current approaches fall short. It's nothing so trivial as "it's just not what we're used to".

    • ollinAug 2025

      Regarding latency, I found a live video of gameplay here [1] and it looks like closer to 1.1s keypress-to-photon latency (33 frames @ 30fps) based on when the onscreen keys start lighting up vs when the camera starts moving. This writeup [2] from someone who tried the Genie 3 research preview mentions that "while there is some control lag, I was told that this is due to the infrastructure used to serve the model rather than the model itself" so a lot of this latency may be added by their client/server streaming setup.

      [1] https://x.com/holynski_/status/1952756737800651144

      [2] https://togelius.blogspot.com/2025/08/genie-3-and-future-of-neural-game.html

    • alphabettingAug 2025

      I doubt there was a condition on writing positively. Other people who tested have said this won't replace engines. https://togelius.blogspot.com/2025/08/genie-3-and-future-of-neural-game.html

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