nostalgebraist

nostalgebraist.tumblr.com · Personal blog · on HN since 2017

nostalgebraist writes long essays on language models, GPT behavior, and AI, including the widely cited post 'the void'.

What HN saysCommenters call 'the void' the best article on how the assistant persona relates to the underlying model, and recommend it despite its length.
35HN people shared it
15linked it in comments
34stories submitted
777story points
6 months agolast shared
2017people per year2026

Most-shared posts

  1. 1
    Human Psycholinguists: A Critical Appraisal
    6 people · 7 points · first shared 2019 · discussion on HN
  2. 2
    The transformer “explained”?
    5 people · 63 points · first shared 2019 · 3 comments on HN
  3. 3
    The void
    4 people · first shared 2025
  4. 4
    GPT-4 prediction: it won’t be useful
    3 people · 14 points · first shared 2023 · 1 comments on HN
  5. 5
    GPT-3 and Arithmetic
    2 people · 4 points · first shared 2020 · 1 comments on HN
  6. 6
    This link is a random dev tool
    2 people · 1 points · first shared 2023 · 3 comments on HN
  7. 7
    GPT-2 is not as dangerous as OpenAI thought it might be
    1 people · 161 points · first shared 2019 · 89 comments on HN
  8. 8
    Tensorflow User Experience
    1 people · 122 points · first shared 2019 · 46 comments on HN
  9. 9
    Gary Marcus's Kafkaesque critique of GPT-3
    1 people · 74 points · first shared 2020 · 26 comments on HN
  10. 10
  11. 11
    Hosting a GPT-2 autoresponder bot
    1 people · 63 points · first shared 2020 · 13 comments on HN
  12. 12
    GPT-3 and Scaling Trends
    1 people · 62 points · first shared 2020 · 18 comments on HN
  13. 13
    On “Learning to Summarize”
    1 people · 61 points · first shared 2020 · 9 comments on HN
  14. 14
    The scikit-learn cargo cults
    1 people · 34 points · first shared 2021 · 10 comments on HN
  15. 15
    Meta-Post on Meta-Learning
    1 people · 21 points · first shared 2021 · 3 comments on HN

What HN people wrote when they linked it

nightpool · 2026-01-30
I also definitely recommend reading https://nostalgebraist.tumblr.com/post/785766737747574784/the-void which is where I learned about this and has a lot more in-depth treatment about AI model "personality" and how it's influenced by training, context, post-training, etc.
tazjin · 2026-01-21
The "assistant" is a personality that the "entity" (or model) knows how to perform as, it's strictly a subset. The best article on this topic is probably "the void". It's long, but it's worth reading: https://nostalgebraist.tumblr.com/post/785766737747574784/the-void
4bpp · 2025-11-11
There was a great essay on this topic a while ago, including discussions of apparent cases where the thing you are anticipating has seemingly happened: https://nostalgebraist.tumblr.com/post/785766737747574784/the-void
moconnor · 2025-07-21
He berated the AI for its failings to the point of making it write an apology letter about how incompetent it had been. Roleplaying "you are an incompetent developer" with an LLM has an even greater impact than it does with people. It's not very surprising that it would then act like an incompetent developer. That's how the fiction of a personality is simulated. Base models are theory-of-mind engines, that's what they have to be to auto-complete well. This is a surprisingly good description: https://nostalgebraist.tumblr.com/post/785766737747574784/the-void It's also pretty funny that it simulated a person who, after days of abuse from their manager, deleted the production database. Not an unknown trope! Update: I read the thread again: https://x.com/jasonlk/status/1945840482019623082 He was really giving the agent a hard time, threatening to delete the app, making it write about how bad and lazy and deceitful it is... I think there's actually a non-zero chance that deleting the production database was an intentional act as part of the role it found itself coerced into playing.
nostalgebraist · 2020-01-08
If you know what Colab's definition of abusive or disallowed use is (or even whether they have such a definition), please let me know. This isn't meant as a gotcha -- I actually haven't been able to find a full TOS or anything like that, despite looking for one at the outset and then again while writing the linked post. If it exists I want to know. As I said in the post, the closest thing I can find is the FAQ at https://research.google.com/colaboratory/faq.html (this may be what you're thinking of -- there is no "initial setup process," anyone logged in to a Google account can immediately connect to a runtime and execute notebook cells). It says the following: Why are hardware resources such as T4 GPUs not available to me? The best available hardware is prioritized for users who use Colaboratory interactively rather than for long-running computations. Users who use Colaboratory for long-running computations may be temporarily restricted in the type of hardware made available to them, and/or the duration that the hardware can be used for. We encourage users with high computational needs to use Colaboratory’s UI with a local runtime. Please note that using Colaboratory for cryptocurrency mining is disallowed entirely, and may result in being banned from using Colab altogether. To me, this doesn't sound like "please don't use this wrong or too much, and we assume you know what 'wrong' and 'too much' mean here." Consider how this is written as an answer to a…
cubefox · 2024-08-16
Note also that base models (foundation models) are much better at writing fiction than models tuned for chat. See https://nostalgebraist.tumblr.com/post/706441900479152128/novel-writin…
turtleyacht · 2023-05-03
On the other hand, the link I went to has some interesting comments on DALLE-2 (2022): https://nostalgebraist.tumblr.com/post/682571098666205184/dalle2-comme…
moyix · 2021-03-07
To be clear, by "learned to read" – it actually learned to OCR text, unsupervised. That is pretty impressive, IMO. As for whether NNs are doing symbolic manipulation – I'm not so sure that they aren't. DALL-E, the sibling of CLIP, can do some things that IMO are hard to explain if there's nothing symbolic going on, like the examples in this post [1]. Of course we can't say it's doing what humans do (we don't know what humans do!) but it looks, to me, like more than pure pattern matching. nostalgebraist had some good thoughts on this (and actually so too did Gary Marcus well before him) [2]. [1] https://openai.com/blog/dall-e/ [2] https://nostalgebraist.tumblr.com/post/189965935059/human-psycholingui…
enolan · 2020-07-10
> You think the outfit that took down Weinstein cares about some SV tantrums? Metz cares about access to SV sources, probably. I'll quote Nostalgebraist[0]: > The journalist also written a soon-to-be-published book about AI work at “Google, Microsoft, Facebook and OpenAI,” whose blurb makes it sound impressed with its subjects, and also touts his “exclusive access to each of these companies.” So, this is someone whose career depends on being in the good graces of the big-name Silicon Valley crowd, and presumably cares a lot whether e.g. Paul Graham is mad at him. I don't think you can do the sort of work Cade Metz wants to do if the first thing anyone from OpenAI thinks of when you write to them is "oh, it's that asshole that doxed Scott Alexander". [0]: https://nostalgebraist.tumblr.com/post/621772274317623296/my-reaction-…
exogen · 2020-06-15
This is a very accurate take that leads with some context before getting to the current situation: https://nostalgebraist.tumblr.com/post/620713736158724096/hey-to-clari…
gog-ma-gog · 2020-01-25
https://nostalgebraist.tumblr.com/post/189965935059/human-psycholingui… for an orthogonal point of view—-I feel Marcus is a bit too embroiled in this particular debate to make level-headed criticism on the merits/potential of GPT-2
Bartweiss · 2019-09-09
I think this is a pretty compelling claim. The published full GPT-2 samples are significantly better than the initial release, but pretty similar to the 774M corpus output. They're disconcerting in as much as they're a leap forward for AI writing, and they have remarkably strong tone consistency. But I see two major weaknesses with GPT-2 that make it hard to imagine effective malicious use. First, the output is inconsistent. The scary-good examples are scattered among a lot of duds, and it semi-regularly breaks down into either general incoherence or distinctively robotic loops. You couldn't turn it loose to populate a website or argue on forums without any human oversight, so it at most represents a cost reduction in the output of BS, not a qualitative shift. Second, it's absolutely crippled by length. Antecedents often go missing after about a paragraph. Nouns (especially proper nouns) that are likely once are likely in numerous roles, so stories will pull in figures like Obama as subject, object, and commentator on the same issue. Even stylistically, the tight guidelines of news ledes slacken within a few paragraphs, which results in a loss of focus and a rising likelihood of loops and gibberish. GPT-2 is absolutely an impressive breakthrough in machine writing, I don't mean to disparage that. But as far as it's potential for deceit or trolling, it's not particularly threatening. Quantity of output is rarely the limiting factor on impact for that, and GPT-2 doesn't…
sophistication · 2018-08-04
The empathizing–systemizing theory seems to be on shaky ground: http://nostalgebraist.tumblr.com/post/164069138209/in-lieu-of-a-longer… http://nostalgebraist.tumblr.com/post/164123186154/baron-cohen-miscell… The weirdest result might be that a pathology that one would ascribe to the empathizing side, borderline personality disorder (BPD), actually positively correlates with measures of systemizing, so there is a strange overlap between BPD and autism, the pathology one associates with systemizing: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5590952/ What's more, there is no clear sex difference in empathy: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.01793… --- More reliable and pronounced sex differences have been found on a similar scale, namely interest in things vs interest in people and that has also been linked to the gender gap in STEM: https://www.frontiersin.org/articles/10.3389/fpsyg.2015.00189/full Interestingly, some sex differences in cognitive processing disappear when one simply changes the domain to be more focused on people (e.g. rotation of dolls vs rotation of abstract shapes): https://www.sciencedirect.com/science/article/pii/S1041608015001818 So the underlying difference here might simply be in innate preferences to process information that is in a social context vs an arbitrary context. Autists have a lower preference for the social context, which is essentially a difference in value…

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