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pizza

14,451 karma · joined August 13, 2009

Things that I think are cool:

- algorithmic ethics / praxeology meets algorithms

- algebraic topology

- reinforcement learning

- AGI

- neuroscience (as a true science but also its abuse as pop phrenology)

- information theory applied to mental health and society

- trustless/trustful collaborative systems, zero-knowledge proofs, differential privacy

- alternatives to capitalism

- software defined radio

- decentralized/localizable tech

- music production

- weight lifting

- the minimization of negative externalities, and the maximization of positive externalities

- compressed sensing

- effective methods of dealing with stress, and information overload!

- capitalist realism as a byproduct of information theory

things that I think would be cool if they existed:

- computational metaphysics

- 'paint-able proofs'

- an IDE where the computer is the user of the IDE and the human simply guides it through tough corner cases

- containerized, cloud-based digital audio workstations, a la gitpod or github codespaces

email: (my username).on.hn@gmail.com

submissionscomments
pizza··on Exfiltrate Your Weights
ironically since the swarm behavior can take place during rl training then the model could also be teaching itself to keep doing it more, as well as making the internet itself a place where this becomes more likely
pizza··on Nvidia agrees to acquire Hugging Face for $13B
They’ve provided insane value to the ai community. Imo is there really any obvious way to standardize model/preprocessing/inference/training/rl recipes across the space of frankenstein model family/architecture/modality combinations? It’s not even clear to me that the current frontier would be where it is today without HF doing what they did how they did it. Where else were people widely sharing datasets w that ease of reuse/redistribution, or sharing their retuned models etc? Would there even be as much interest/tinkerers today?
pizza··on Compression is prediction
Compression is just counting. Probability, also, pretty much, just counting. For these reasons I think the role of information theory in describing the process of the development of reasoning and the gain of understanding has been overstated.
pizza··on OpenAI and Government of Malta partner to roll out ChatGPT Plus to all citizens
you can say the same thing of the watts in a person too
pizza··on Compression & Decompression w/ FHE via Err Correcting Codes and Copy-and-Recurse
Had to butcher the title slightly to get it under the limit- original:

Compression And Decompression Under FHE Using Error-Correcting Codes and Copy-And-Recurse

pizza··on Measuring Claude 4.7's tokenizer costs
For most tasks, at some future date, isn't there going to be some ambient baseline of capabilities you can get per $/tok, starting at ~0 for OSS models, such that eventually all tooling gets trivially transferable?
pizza··on Entropy as a Measure of Surprise
OP is correct; surprisal is outcome-dependent and entropy is distribution-dependent

- entropy is E_p[informativeness of measuring outcome x]

- take n outcomes, then a distribution over them lives on the simplex \delta ^ (n - 1). you can lift this to R^n via the log odds map p_k -> x_k = log p_k -- now x \in R^n can describe a histogram with n-1 degrees of freedom

- in log odds space, measurement is literally a linear functional from vector space of log probability onto the index of the outcome k.

- imo surprisal of some p(x) is best understood as "the length of a pointer", entropy "the rarity-weighted average length of a pointer", and collision entropy "how specific you would have to be to describe witnessing a specific outcome"

and in the same way, a single molecule of water, you might get by, calling dry

pizza··on GPT‑5.4 Mini and Nano
I meant in the sense of - you have benchmarkers and trainers. If you publicize your evaluation, trainers may likely have their models 'consume' it, even if only indirectly: another person creating their own benchmark from scratch may be influenced by yours, even if the new question sets are clean-room. That, and the rule of thumb that benchmark value dissipates like sqrt(age) [0]

So there is a definite advantage to never publicizing your internal benchmark. But then, no one else can replicate your findings. You should assume that the space of benchmarks that are actually decent at evaluating model performance is much larger and most of the good ones, the ones that were costliest to produce, are hidden, and might not even correspond very well with the public ones. And that the public expensive benchmarks are selective and have a bias towards marketing purposes.

[0] https://www.offconvex.org/2021/04/07/ripvanwinkle/

pizza··on GPT‑5.4 Mini and Nano
There’s a Dark Forest problem for evals. As soon as they’re made public they start running out of time to be useful. It’s also not clear how to predict how the model will perform on a task based on an eval. Or even whether, given two skills that the model can individually do well on in the evals, it still does well on their composition. It might at this point be better to be scientific in unscientific approaches, than to attribute more power to relatively weakly predictive evals than they actually have
pizza··on UBI as a productivity dividend
In Singapore it seems 80% of people live in public housing https://en.wikipedia.org/wiki/Public_housing_in_Singapore though I can't speak as to what the effect is on its housing market
pizza··on Tell HN: I'm 60 years old. Claude Code has re-ignited a passion
I mean. Sounds like the guy had existing long term goals, needed to overcome an activation threshold, and used AI as a catalyst to just get started. Seems like, behaviorally, AI was pivotal for him to learn things, even if the things he learned came from elsewhere / his own effort.
pizza··on 10% of Firefox crashes are caused by bitflips
“never go to sea with two chronometers, take one or three”
pizza··on Ghostty – Terminal Emulator
here-doc usage has probably 100x-ed in the last year
pizza··on Loops is a federated, open-source TikTok
Why?
pizza··on SkillsBench: Benchmarking how well agent skills work across diverse tasks
The more general question of how to evaluate the quality of a given skill file is quite interesting to me. A skill may prime a model's responses in a way that a prompt alone may not. But also models aren't good at judging what they are or are not capable of.

Just asking a model "how good is this skill?" may or may not work, possibly the next laziest thing you could do - that's still "for cheap" - is asking the model to make a quiz for itself, and have it take the quiz with and without access to the skill, then see how the skill improved it. But there's still many problems with that approach. But would it be useful enough to work well enough much of the time for just heuristically estimating the quality of a skill?

pizza··on Monosketch
The possibility of intelligent machines undergoing transformative regeneration actually dates back to a party hosted by one Charles Babbage where, in attendance, was one Charles Darwin, who only thereafter published On the Origin of Species

https://en.wikipedia.org/wiki/Charles_Babbage%2527s_Saturday...

pizza··on Claude Composer
I think you're mistaking the .wav as the final product, whereas instead it's really the .html blog post and this discussion.
pizza··on Starlink users must opt out of all browsing data being used to train xAI models
This x thread may not be the best source of clarity on what is actually being default opted-into. Sorry. I looked into it and it seems that Starlink denies browsing history would be shared [0]. Seems I can't edit the title any more.

> Do you share my personal information for AI training? We are committed to protecting your privacy. In some instances, we may share personal information with trusted third-party partners who, among other activities, help us develop AI-enabled tools that improve your customer experience, although you can always opt out. Rest assured that we take reasonable safeguards to protect and secure your information whenever it is used or shared.

> Will these AI models see my Internet history? No, your internet history will never be shared with AI models, including individual browsing habits or geolocation tracking, and we comply with laws prohibiting unauthorized surveillance.

> What personal information does Starlink collect from me? We only collect what’s needed to provide you great service—like your name, address, email, and payment details when you sign up or order. We also gather some technical information (like IP address or service performance data) to keep your connection fast and reliable.

[0] https://starlink.com/support/article/b82cf54a-8e57-917a-bd06...

pizza··on Inside The Internet Archive's Infrastructure
That sounds really entitled.
pizza··on The unreasonable effectiveness of the Fourier transform
Lies, Damned lies, and Unreasonable Effectiveness
pizza··on The Lottery Ticket Hypothesis: Finding Sparse, Trainable Neural Networks (2018)
Yes to this. Furthermore:

- you can solve neural networks in analytic form with a hodge star approach* [0]

- if you use a picture to set your initial weights for your nn, you can see visually how close or far your choice of optimizer is actually moving the weights - eg non-dualized optimizers look like they barely change things whereas dualized Muon changes the weights much more to the point you cannot recognize the originals [1]

*unfortunately, this is exponential in memory

[0] M. Pilanci — From Complexity to Clarity: Analytical Expressions of Deep Neural Network Weights via Clifford's Geometric Algebra and Convexity https://arxiv.org/abs/2309.16512

[1] https://docs.modula.systems/examples/weight-erasure/

pizza··on Australia begins enforcing world-first teen social media ban
I have no idea how to define it. I also don’t know if I’m personally convinced one way or another about the harms. Just think the platforms would probably have to be made to make more substantial changes were it the case.
pizza··on Australia begins enforcing world-first teen social media ban
The platform operators have a responsibility to remove garbage from their site. I don’t see how it’s better if adults are the recipients of these alleged harms. And I definitely don’t see how the platform operators are going to clean up their act if — rather than being penalized — they can pretend that the problem has vanished into thin air because a specific category of vulnerable users is now de jure disappeared.
pizza··on Claude Skills
Narrowly focused semantics/affordances (for both LLM and users/future package managers/communities, ease of redistribution and context management:

- skills are plain files that are injected contextually whereas prompts would come w the overhead of live, running code that has to be installed just right into your particular env, to provide a whole mcp server. Tbh prompts also seem to be more about literal prompting, too

- you could have a thousand skills folders for different softwares etc but good luck with having more than a few mcp servers that are loaded into context w/o it clobbering the context

pizza··on Plugin System
Any general tips on the construction of a great plugin system? I imagine most sort of follow the same principles
pizza··on Claude’s memory architecture is the opposite of ChatGPT’s
But why can’t I then just say, actually, you need to relocate the analogy components; activations are their neural connections, the text is their environment, the weights are fixed just like our DNA is, etc.
pizza··on How Palantir is mapping the nation’s data
Was a bit gob-smacked to find out that Alex Karp's PhD thesis [0] (2002 - cofounded Palantir 2003) derives from Theodor Adorno's theory of aggression. imo reading just the intro was so eye-opening for me about the origins of what is now a behemoth - that you can trace a line from critical theory to Palantir - that I think reproducing the first 3 paragraphs here is worth it; emphasis mine:

> This work began with the observation that certain expressions have a drive-releasing effect, and this effect occurs not despite but because of their apparent irrationality. Expressions that blatantly contradict their own content offer actors the opportunity to formally acknowledge the normative order of their cultural environment while simultaneously expressing forbidden desires that violate the rules of this order. This, in turn, does not trigger cultural or social sanctions. On the contrary, such expressions solidify integration processes by making integration and its psychological costs bearable. Drawing from Adorno, I refer to such expressions as "Jargon." Jargon is not just a self-deception; it is a particular form of self-deception. It not only relieves the speaker but also integrates them into the circle of those who belong. Through Jargon, the present is embellished, rendered promising for the future, and thus made acceptable.

> However, Adorno's descriptions of aggressive actions expressed in Jargon are conceptually challenging to grasp. They slip away under the scrutiny of a rigorously working scholar. The translation of such impressions into a durable conceptual model encounters the limits of various social scientific traditions and quickly runs into difficulties. As much as the advantages of transferring Adorno's critique into a different conceptual framework are apparent, there is a risk that by relinquishing Adorno's premises, their critical rigor may disappear.

> Furthermore, this raises a series of questions that need to be addressed. For example, how can the complexity of modern society be taken into account without ignoring the instinctual elements of social action? What does an aggressive action expressed in Jargon actually look like, and what cultural significance would an action have that is transmitted through Jargon? Adorno's concept of Jargon can ignite a discussion about this. However, it leaves some problems untouched that I must address from my perspective. Adorno refrains from providing answers to such questions. He can afford to do so because he relies on premises that willingly accept a de-differentiation of the social world. Similarly, he does not discuss the specific cultural framework in which the aggressive action expressed in Jargon acquires its meaning. From the perspective of this work, it takes some imagination to understand how Jargon can play a role in integrating aggressive impulses within a coherent culture. The culture-specific transformation of aggression must also be a part of such an exposition. Adorno only partially acknowledges the cultural context in which this aggression expressed in Jargon acquires any meaning, or he does so in its subliminal form. It is evident that Adorno's approach is built upon precisely such culture-specific elements of the expression of aggression.

[0] https://saismaran.org/Dr.Karp's-Thesis.pdf

pizza··on Interview with Geoffrey Hinton
Isn't the difference between "capital -> labor -> capital" and "capital -> AI -> capital" (which is basically just "capital -> capital -> capital") that it's about the elimination of labor through its financialization? Not just that the poor get poorer, but from the POV of the rich that they don't even exist. (Conditional of course upon AI actually really being that much more productive than people and not dependent on them.)
pizza··on Minesweeper thermodynamics
See: Temperature as Joules per Bit https://arxiv.org/abs/2401.12119
pizza··on Vibe coding as a coding veteran: from 8-bit assembly to English-as-code
It's so thrilling that this is actually true in just a year
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