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skybrian

27,929 karma · joined April 5, 2009

Retired software engineer and amateur accordionist.

Accordion videos I like: https://mastodon.social/@skybrian/tagged/accordionsongs

Social media: https://bsky.app/profile/skybrian.bsky.social https://tildes.net/

Blog (inactive): https://skybrian.substack.com/

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skybrian··on The obscure trust looming over Anthropic's IPO
This is getting causation backwards. Effective Altruism was a relatively small scene that attracted some people who understood the importance of AI early. It’s not all that surprising that some of those people went on to start AI labs later.

You can make a conspiracy out of it, but it’s sort of like thinking people who met in school had it all planned out from the beginning.

skybrian··on Maybe There Was an Egg Cartel After All
They buy a relatively small number of eggs at a high price, but the price of the transaction is an input into an index that the larger market uses.
skybrian··on How employment is changing at Anthropic
The numerator on that is “Real Value-Added Output for All Workers” [1], which is based on revenue (subtracting some costs), and the denominator is “Hours Worked for All Workers” [2].

Anthropic’s revenue has seen enormous growth [3]. They have few employees. Obviously, as these things are measured, they are highly productive! It might be hard to reproduce that sort of productivity outside the tech industry, though. We can’t all be Anthropic.

[1] https://fred.stlouisfed.org/series/OUTNFB

[2] https://fred.stlouisfed.org/series/HOANBS

[3] https://pages.skybrian.com/2026/anthropic-run-rates/

skybrian··on How employment is changing at Anthropic
A report doesn’t need to be discontinued if it’s automated. It’s just another graph on a dashboard. The cron job might put a little more load on the system, or the code might be a bit of a software maintenance burden, but cleaning it up can be put off for years. It’s there if you want it.
skybrian··on Linux 7.3
Number of CVEs fixed at an all-time high:

https://pages.skybrian.com/2026/kernel-cve-fixes/

skybrian··on "I'm on a war footing": Terry Tao and the crisis in math
It seems fairer to say that the Waymo fleet has >4,000 driverless cars [1]. There is still a long way to go, but it's rising.

[1] https://pages.skybrian.com/2026/waymo-robotaxi-fleet/

skybrian··on The Public Pays to Produce Research. Shareholders Collect the Return
That analogy doesn't make sense. It's more like you drew up the plans for house, someone else built it, but you're refusing to pay the developer for the part they did, because somehow, only drawing up the plans counts.

Academic researchers don't get a vaccine approved and manufacture it at scale. They do experiments and publish papers.

skybrian··on Someone behind the software
For me, the visual design usually has problems the first time, and then I ask it to fix it. But the edits are still done by the AI.
skybrian··on Someone behind the software
Based on my experience using AI to build software for myself, I think this mostly depends on what you ask for, not whether you use AI to implement it.
skybrian··on Tesla 'Cannot Guarantee' Roadster Reservation Holders Will Ever Get a Car
How much electric sports car owners care about increasing range beyond 300 miles or so? It seems hard to believe that such a car would be obsolete.
skybrian··on The Public Pays to Produce Research. Shareholders Collect the Return
The headline, at least, is making an comparison between shareholder benefits and public costs.

Why that particular combination? You could just as easily compare private spending and public benefits, and it would make about as much sense.

Maybe better to include both public and private costs and benefits?

skybrian··on The Public Pays to Produce Research. Shareholders Collect the Return
How would this study’s methodology account for the public benefit from a new vaccine?

Edit: according to ChatGPT, it doesn’t:

> the analysis considers resources such as research funding, scientists' labor, data collection, analysis, and manuscript preparation. It does not assign an economic value to lives saved, illness prevented, or economic activity preserved by a vaccine

skybrian··on How employment is changing at Anthropic
This doesn’t seem like a real problem for companies since they could start up internship programs if they need to.
skybrian··on How employment is changing at Anthropic
Automating away the tedious parts of your work is something sysadmins and programmers have been doing for a long time. For example see:

https://sre.google/sre-book/eliminating-toil/

skybrian··on Types of types: Haskell's Kind system
It seems like the sort of thing that system designers could benefit from understanding, but the ordinary users of a system shouldn't need to know about it.
skybrian··on Gold is now the top U.S. export
I don't think holding gold does much, but in theory, a central bank could prop up its currency by selling the gold. It's like selling any other asset.
skybrian··on The Fatal Flaw of 911
> Since 911’s inception in 1968, and even before, we have always defaulted to the police for things that really have nothing to do with crime.

I'm not sure why that should be surprising. For example, I'd expect the highway patrol to show up first at an accident. Maybe an ambulance or the fire department would be there too.

skybrian··on Simons Foundation launches $15M effort to help mathematicians navigate AI era
Why bring up the singularity? It hasn't happened and might not happen the way anyone thinks. For example, the timelines in different fields might not all go vertical at the same time. So, you could get something like an Internet singularity without a corresponding robotics singularity. Also, war is different from civilian applications. The use of drones to bomb data centers doesn't imply that drones will be useful for civilian applications like delivering pizza.

There's no particular reason to believe that solving math theorems generalizes to engineering or robotics without a whole lot of additional work.

skybrian··on Simons Foundation launches $15M effort to help mathematicians navigate AI era
That seems wrong unless you have an unusual definition of "understanding":

* Lots of people use math for calculations without having proven any theorems.

* You can understand a mathematical statement without understanding or even having a proof. There are proofs built on the axiom of choice and conjectured results.

skybrian··on Simons Foundation launches $15M effort to help mathematicians navigate AI era
No, it's not an "everyone" problem yet. Each field is likely on its own timeline. Knowing how well AI is at proving theorems is of only limited use for predicting what will happen and when in other fields.
skybrian··on I know why Mathematicians weep
Maybe math is more like a science now, though? It's as if ancient astronomers saw the results from a modern telescope. "Why even look at the sky anymore," they might ask. "And we don't even own the telescope!"

Maybe the answer is to look into how Big Science works? There's still plenty of work to be done figuring out what to do with the outputs from these new math-observing instruments.

skybrian··on I know why the mathematicians weep
You use the word "already" as if it already happened, but this is confusing speculation with reality. Market prices are a summary of speculation. Plenty of things are "priced in" that haven't happened yet, and maybe won't if the market is wrong.

Anticipating that something will happen is not the same as evidence that it's happened.

skybrian··on Yandex outage: data shows that instead of going dark, malicious bots moved
I don’t see anything vague or misleading about either tweet. I suppose it might be misleading if you don’t know what “bots” means in this context and don’t bother to find out?
skybrian··on Show HN: XY Music Notation
How often are you doing calculations though? Using the same names as everyone else seems more important.
skybrian··on Show HN: XY Music Notation
I think you’d be better off with something compatible with an existing system. Perhaps start with nashville numbering and add accidentals?

https://en.wikipedia.org/wiki/Nashville_Number_System

skybrian··on Cyberattack halts construction of tunnel between Denmark and Germany
Or maybe it’s the Iranians this time? Whoever it is, getting good at cybersecurity seems more useful than going to war over it.
skybrian··on Strengthening our defenses against distillation attacks
Okay, paraphrasing text describing an idea isn’t necessarily a copyright violation.

I think the issue is that it’s case-specific, but there are plenty of people claiming copyright violations in circumstances where there’s no specific evidence for it, and a few other people claiming that LLM inference necessarily means it’s transformative use.

skybrian··on AI models may soon self-replicate without access to data centers
It can have good uses, but we are also going to have AI botnets soon.
skybrian··on Strengthening our defenses against distillation attacks
Ideas can’t be copyrighted. Paraphrasing some text explaining an idea isn’t a copyright violation. Having trained on something you wrote doesn’t necessarily imply a copyright violation. It depends on what the LLM outputs.
skybrian··on A look at the math that OpenAI claims computes faster Fourier transforms
If Big-O lets you run every possible algorithm in "parallel" while still being in some sense "optimal," that seems like yet another exploit?
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