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matusp

1,438 karma · joined July 19, 2020

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matusp··on My productivity app is a never-ending .txt file (2020)
Same, I have one living document that is constantly being updated with TODOs, questions, notes, but once they are done or irrelevant, I delete them. I am actually surprised how many people here use append-only approaches.
matusp··on Cadmium Zinc Telluride: The wonder material powering a medical 'revolution'
FYI, what you said is one meaning. But it is also, surprisingly, defined as brief trivial fact.
matusp··on So you want to speak at software conferences?
I don't think the author meant that you have to be the world leading expert at any topic. You can be pretty average, but you need to give it your personal twist. He is warning against very generic abstract talks that can be replaced by reading a man page.
matusp··on Icons in Menus Everywhere – Send Help
Agreed, compare that to Quit Safari and Force Quit Safari below. One is X in a square, the other is X in a circle. Very confusing.
matusp··on Tides are weirder than you think
Simple illustration of what you are explaining in 1D. Imagine a simplified Earth:

Water -- Ground -- Water

Now let's add a Moon with gravitational pull. The pull stretches the system, because gravity is stronger the closer you are to the Moon.

Water ---- Ground ---- Water -//- Moon

The water is farther away from the ground on both sides now, since both sides stretched.

matusp··on Reverse engineering a $1B Legal AI tool exposed 100k+ confidential files
There is none. Filevine is not even an "AI" company. They are a pretty standard SaaS that has some AI features nowadays. But the hive mind needs its food, and AI bad as we all know.
matusp··on OpenAI declares 'code red' as Google catches up in AI race
:|
matusp··on How good engineers write bad code at big companies
I think it's cultural. Managers today do daily stand-ups, one-on-ones, retrospectives, syncs, and all kinds of meetings. They are heavily invested in the day-to-day operations of the team. The societal expectation for this role is that they are hands-on, and when a problem arises, they will immediately do some shuffling or reshuffling to address whatever problem is at hand. In a sense, this is the outcome of agile-like methodologies spreading in the industry. If this is the tool we are teaching managers to use, of course it's the tool they are going to use.
matusp··on OpenAI needs to raise at least $207B by 2030
Another reason why social media matters is that people actually spend their free time in all those feeds. On the other hand, using LLMs is much more oriented towards specific utilities. Having 1B users who visit you once a day to ask for an email proofread will not make you profitable.
matusp··on OpenAI needs to raise at least $207B by 2030
https://chatgpt.com/merchants/
matusp··on Hiring a developer as a small indie studio in 2025
I can see both perspectives. If you are a skilled hiree, this seems like a waste of time. But if you are hiring online, you will inevitably get a lot of terrible candidates and you need to filter them out. If you are a small team, you can't spend weeks interviewing randos with little to none coding experience for a SE role. The problem is that online hiring is full of noise, but both sides suffer from the expenses this creates.
matusp··on Firefox Forcing LLM Features
Where can I find these LLM features in Firefox?
matusp··on Ruby already solved my problem
If I would get a cent every time I solved a difficult problem in a project by pulling out difflib and shocking the team with it, I would have two cents. It's not a lot, but it's amusing that it happened two times already.
matusp··on Some software bloat is OK
What is often missing from the discussion is the expected lifecycle of the product. Using Electron for a simple app might be a good idea, if it is a proof-of-concept, or an app that will be used sparsely by few people. But if you use it for the built-in calculator in your OS, the trade-offs are suddenly completely different.
matusp··on The Smol Training Playbook: The Secrets to Building World-Class LLMs
The number of runs you can afford are not enough to perform Bayesian optimization. Count how many different options they explored in the text and take a guess how many samples you need to start modeling the hyperparameter space.
matusp··on The Smol Training Playbook: The Secrets to Building World-Class LLMs
Really impressive writeup. In your opinion, how long will this stay up to date? The field is constantly evolving, do you plan to keep updating this document?
matusp··on Claude for Excel
There is this homogenization happening in AI. No matter what their original mission was, all the AI companies are now building AI-powered gimmicks hoping to stumble upon something profitable. The investors are waiting...
matusp··on More big companies bet they can still grow without hiring
I don't think AI has anything to do with this. For a while, investors were using headcount as a metric for growth, even though startups often showed very poor utilization of their new hires. Hiring was done for the sake of hiring. Trying to achieve more with less is simply a reasonable response to a market where money is much more expensive than before. Many tech companies were unreasonably ineffective with their manpower, this is a much bigger problem now.
matusp··on A bug that taught me more about PyTorch than years of using it
I think that z-order is used to increase speed of loading texture from RAM. But this is not an issue in ML. You usually have all your model weights directly loaded into your GPU memory and you do not need caching for your inputs. At the same time, the entire stack for ML is heavily optimized for other memory layouts already.
matusp··on Show HN: LLM Rescuer – Fixing the billion dollar mistake in Ruby
I wonder how many people will use it unironically despute the writing. It's probably going to be a nonzero number, right?
matusp··on ChatGPT Launches 'Company Knowledge'
They raised billions of dollars, and they're obviously spending it to develop just about anything they can think of. What's rather concerning for them is that the core AI seems to have pretty much stagnated by now.
matusp··on The Dragon Hatchling: The missing link between the transformer and brain models
What about the fact that it has 45 pages with exactly one comparison with transformer architecture (Figure 7)? This is just a fluff piece for a company trying to raise funding.
matusp··on Beaver-engineered dam in the Czech Republic
If you want peace, prepare for war.
matusp··on The case for the return of fine-tuning
Fine-tuning is a good technique to have in a toolbox, but in reality, it is feasible only in some use cases. On one hand, many NLP tasks are already easy enough for LLMs to have near perfect accuracy and fine tuning is not needed. On the other hand, really complex tasks are really difficult to fine-tune and clevem data collection might be pretty expensive. Fine-tuning can help with the use cases somewhere in the middle, not too simple, not too complex, feasible for data collection, etc.
matusp··on Andrej Karpathy – It will take a decade to work through the issues with agents
We should completely strip all this talk from AI as a field (and get rid of that name as well). It just causes endless confusion, especially for general audience. In the end, the whole shtick with LLMs is that we train matrices to predict next tokens. You can explain this entire concept without invoking AGI, Roko's basilisk, the nature of human consciousness, and all the other mumbo jumbo that tries so hard to make this field what it is not.
matusp··on AI has a cargo cult problem
Fully agreed. The author also can't decide whether AI is a Ponzi scheme, a bubble, or a cargo cult; so let’s just use them all! It's just buzzwords without any real analysis beyond what is generally known about the field.
matusp··on A $6B Nuclear U.S. Navy Aircraft Carrier 'Sunk' by $100M Diesel 'AIP' Sub
My exact reaction. I noticed the repetitiveness. Count how many times they reiterate the point that this was a shock for the US Navy.
matusp··on A History of Large Language Models
> The way I think of these transformations, but happy to be corrected, is more a matter of adding information rather than modifying

This is very much the case considering the residual connections within the model. The final representation can be expressed as a sum of representations from N layers, where the N-th representation is a function of N-1-th.

matusp··on A History of Large Language Models
What a great write-up, kudos to the author! I’ve been in the field since 2014, so this really feels like reliving my career. I think one paradigm shift that isn’t fully represented in the article is what we now call “genAI.” Sure, we had all kinds of language models (BERTs, word embeddings, etc.), but in the end, most people used them to build customized classifiers or regression models. Nobody was thinking about “solving” tasks by asking oracle-like models questions in natural language. That was considered completely impossible with our technology even in 2018/19. Some people studied language models, but that definitely wasn’t their primary use case; they were mainly used to support tasks like speech-to-text, grammar correction, or similar applications.

With GPT-3 and later ChatGPT, there was a very fundamental shift in how people think about approaching NLP problems. Many of the techniques and methods became outdated and you could suddenly do things that were not feasible before.

matusp··on Without data centers, GDP growth was 0.1% in the first half of 2025
> I think it is already profitable and people are more than willing to pay for the actual costs.

If people are willing to pay for the costs, where are the profitable AI companies?

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