MurphyA/hacker-news huggingface dataset:
by Imme_Play_5550 | 2025-05-12 19:11:59+00:00
My mother and I recently did an oral glucose tolerance test while wearing CGMs and discovered that in us, the CGM measurements (Dexcom G7) and the reference instrument measurements (whatever Quest Diagnostics uses) virtually _never_ lined up, even when including the G7's advertised error margins. The blood glucometer readings in me didn't line up either. Admittedly this was on the first day using the G7, when it's apparently less accurate, but due to this I've been doubtful of CGM readings in me/her. I'm sure CGMs work on a population level, but for us, on that day? Nope.

My graph: https://i.imgur.com/FzPdH1g.png

Mom's graph: https://i.imgur.com/5DR1G30.png

Discussion: https://reddit.com/r/PeterAttia/comments/1k301o4/my_ogtt_exp...
by wnevets | 2025-05-12 19:11:59+00:00
All squares are rectangles, but not all rectangles are squares.

All right of publicity laws are intellectual property laws but not all intellectual property laws are right of publicity laws.

All copyright laws are intellectual property laws but not all intellectual property laws are copyright laws.

Right of publicity laws are intellectual property laws because the right of publicity is intellectual property. I don't know how else to articulate this over the internet, maybe its time to consult an AI?
by ohxh | 2025-05-12 19:12:28+00:00
Johnson-lindenstrauss lemma [1] for anyone curious. But you can only map to k>8(\ln N)/\varepsilon ^{2}} if you want to preserve distances within a factor of \varepsilon with a JL-transform. This is tight up to a constant factor too.

I always wondered: if we want to preserve distances between a billion points within 10%, that would mean we need ~18k dimensions. 1% would be 1.8m. Is there a stronger version of the lemma for points that are well spread out? Or are embeddings really just fine with low precision for the distance?

[1] https://en.wikipedia.org/wiki/Johnson%E2%80%93Lindenstrauss_...
by kaycebasques | 2025-05-12 19:12:52+00:00
You're not alone. I've gotten lots of feedback that the post buries the lede [1] and is ineffective because it doesn't provide more concrete examples. I will fix it eventually, I promise! See here for context: https://news.ycombinator.com/item?id=43964584

[1] It's perhaps not even appropriate to say "buried the lede" because that implies the lede is dug back up at some point, whereas this post buries the lede and then forgets where the lede was buried!!
by vel0city | 2025-05-12 19:13:18+00:00
I do agree consistency is probably the most important thing, but deciding which side should go first can have differences based on if you're driving on the left or the right.

Imagine a 4-way stop of 1 lane each way roads. Cars drive on the right in this example. One car rolls up traveling from west to east and another car from south to north.

If we give priority to the right, meaning the south->north traffic, they end up out of the way of the other car sooner than the car on the west to east traffic. They only need to cross halfway before they're unblocking the other traffic. If we give priority to the left, meaning the west-east traffic, the west-east car needs to cross the entire road before they start to unblock.
Show HN: Qual – Build E2E tests with a sentence
by bgwmj | 2025-05-12 19:13:28+00:00
Hey HN,

I'm building Qual which uses computer use models to create end to end tests for your website.

Here's a quick demo: https://youtu.be/cxJJ7phLo9c

When you create a test Qual goes through your site exactly how a user would, and it adds assertions along the way.

Every action it takes is stored so subsequent runs are as deterministic and fast as traditional methods.

Feel free to contact me for any feedback or feature requests: contact@qual.dev
by tough | 2025-05-12 19:13:42+00:00
Sadly lists had a hard cap at 32 or 36 or something like that.. i was too eager early with my specificity (hav elists w 1 repo) and now i cant make new ones (need to delete others)

lol

found a couple non-maintained projects for managing them

https://github.com/astralapp/astral https://github.com/gkze/gh-stars
by bcantrill | 2025-05-12 19:13:52+00:00
Oh no! I had honestly never heard of EE380 when they asked me to present[0], but I really appreciated the fact that it was (either implicitly or explicitly?) open to the public. I wish I had heard of it earlier, and sorry to see it go!

[0] https://www.youtube.com/watch?v=vvZA9n3e5pc
by winwang | 2025-05-12 19:14:01+00:00
Very true. Can't get those numbers even if you get an entire single-tenant CPU VM. Minor note, A100 40G is 1.5TB/s (and much easier to obtain).

That being said, ParaQuery mainly uses T4 and L4 GPUs with "just" ~300 GB/s bandwidth. I believe (correct me if I'm wrong) that should be around a 64-core VM, though obviously dependent on the actual VM family.
by brudgers | 2025-05-12 19:14:08+00:00
The two ribbon States in the valley of the Nile and the Euphrates produced civilizations as full of pomp and circumstance and more stable than any the world has ever known.

I used to look at the world and think those civilizations are dead and gone, these days I think I am probably wrong...not that I rely on a statistical approach any more than PKD's VALIS. It's probably more a belief in the Faulknarian Past from many years living in the American South.

Here, I think Churchill is guilty of Heinlein's Every generation thinks it invented sex. The Soviets are but a handful-of-pharohs blip on the timeline of Egypt.
by pedrovinis | 2025-05-12 19:14:41+00:00
Hey HN,

I recently built File Decomposer — a tool that takes files like PDFs, DOCX, EPUB, HTML, etc., and converts them into structured Markdown or JSON.

The main goal is to help devs, AI engineers, and indie hackers who deal with unstructured documents and want clean, usable data to:

feed into LLMs (for RAG/chatbots)

create searchable knowledge bases

automate workflows

or just stop wasting time copying/pasting from PDFs

It handles:

Large files (multi-hundred-page PDFs, technical docs, books)

Structure preservation (headings, lists, sections)

JSON formatting that’s easy to parse or feed into your pipelines

Built this after wasting too much time cleaning up documents to get usable data into my AI projects. Happy to answer questions, and very open to feedback or edge cases you'd like supported.

You can try it here: https://filedecomposer.com/

Would love to hear how others are tackling this problem, or if there are ways I can make this tool more useful for your workflows.
by simianwords | 2025-05-12 19:14:51+00:00
I would really rather like a benchmark purely focusing on diagnosis. Symptoms, patient history vs the real diagnosis. Maybe name this model House M.D 1.0 or something.

The other stuff is good to have but ultimately a model that focuses on diagnosing medical conditions is going to be the most useful. Look - we aren't going to replace doctors anytime soon but it is good to have a second opinion from an LLM purely for diagnosis. I would hope it captures patterns that weren't observed before. This is exactly the sort of thing game that AI can beat a human at - large scale pattern recognition.
by mrcwinn | 2025-05-12 19:15:58+00:00
Happy to see this. I've struggled with an injury for the past five years. I've been to multiple sports-focused physicians, had various scans. Responses from doctors have ranged from "everything seems fine, can't really figure this out" to [completely wrong hypothesis]. Tried acupuncture. Tried a chiropractor. I remember one doctor, though, had an interesting thought that seemed to make sense - but I've been so discouraged from so many false starts or misplaced hope, I didn't bother following up.

Finally I typed in my entire history into o3-deep-research and let it rip for a while. It came back with a theory for the injury that matched that one doctor, diagrams of muscle groups and even illustrations of proposed exercises. I'm not out of the woods yet, but I am cautiously optimistic for the first time in a long time.
by SoftTalker | 2025-05-12 19:16:26+00:00
It's meant more to show the fallacy of calling them "contractors" when a) to really be contractors they would need tools and a level of business sophistication that most won't have and b) A real contractor dictates the terms of his work, not the other way around as Uber does to its drivers. I am amazed that the IRS has not already ruled that Uber drivers are employees. The argument is much stronger than it is for self-employed IT workers, and they look at those folks very closely.
by drdec | 2025-05-12 19:16:50+00:00
> Add in the random percentage increase in price when you try to buy something in a store from hidden taxes.

It's not random.

Those of us with a state tax are familiar with the rules and the rates. Those with a modicum of arithmetic ability have a pretty good idea what the total is coming to.

Not saying "this is better" just that it is not as bad as you apparently think.
by reissbaker | 2025-05-12 19:16:52+00:00
You can't download Gemini's weights either, so it's not relevant as a comparison against Gemini.

I think the actually-relevant issue here is that until last month there wasn't API access for Grok 3, so no one could test or benchmark it, and you couldn't integrate it into tools that you might want to use it with. They only allowed Grok 2 in their API, and Grok 2 was a pretty bad model.
by epistasis | 2025-05-12 19:17:11+00:00
While googling for the exact amount that Altman invested, I found this press release from 2021:

"Helion Raises $500 Million, Targets 2024 for Demonstrating Net Electricity from Fusion" https://www.helionenergy.com/articles/helion-raises-500m/

And also an r/fusion post documenting prior claims:

> “The Helion Fusion Engine will enable profitable fusion energy in 2019,” - NBF 7/18/2014.

> “If our physics holds, we hope to reach that goal (net energy gain) in the next three years,” - D. Kirtley, CEO of Helion in the Wall Street Journal 2014.

> “Helion will demonstrate net energy gain within 24 months, and 50-MWe pilot plant by 2019,” - NBF 8/18/2015.

> “Helion will attain net energy output within a couple of years and commercial power in 6 years,” - Science News 1/27/2016.

> “Helion plans to reach breakeven energy generation in less than three years, nearly ten times faster than ITER,” - NBF 10/1/2018.

> Their newest claim on their website is: "We expect that Polaris will be able to demonstrate the production of a small amount of net electricity by 2024."

https://www.reddit.com/r/fusion/comments/133ttne/can_we_talk...

I'm sure all this came up in any due diligence as well. They are on Series E after all.

More than a decade of missed milestones is not the type of company that gets this many rounds of investment.

A lot of people really want fusion to happen, and happen sooner. I think that leads to people taking far higher risks with the capital. This sort of investment is always risky, but donating to a grander cause of technology advancement can be a reason for the investment, in addition to expected future value of the investment.
by tome | 2025-05-12 19:17:45+00:00
Yes, I think so. In fact Haskell "effect systems" are a lot like "capability languages" in the sense that the restrict in a fine-grained way which parts of your codebase can perform which sorts of actions. My library Bluefin[1] takes this a step further and represents capabilities as value-level entities which you pass around to whoever needs the capability (and correspondingly, not to whoever doesn't need it). Bluefin calls capabilities "handles" (though I have wondered about renaming).

In fact, this passage from the article describes very closely what it is like to use Bluefin, yet I bet the author doesn't even know of Bluefin's existence! That makes me think I am on the right lines with my design.

> The first is that if you want the entire application to be written in an object-capability style then its main() method must be given a “god object” exposing all the ambient authorities the app begins with. You then have to write proxy objects that restrict access to this god object whilst implementing standard interfaces.

This part is too pessimistic, however:

> No language has such an object or such interfaces in its standard library, and in fact “god objects” are viewed as violating good object oriented design.

As you correctly point out, cryptonector, Haskell's IO is the "god object". It allows you to do roughly anything. And indeed Bluefin's runEff[2] gives you access to the god object (which is IO wrapped up in an effect (or "capability") called IOE). The rest of the program runs by "peeling parts off" this god object so it only uses the parts that it needs.

I have found this a very satisfactory way to program.

[1] https://hackage.haskell.org/package/bluefin

[2] https://hackage-content.haskell.org/package/bluefin-0.0.15.0...
by AStonesThrow | 2025-05-12 19:17:57+00:00
A phenomenon that I see all too often is the absurdity of young adults who try to plow through writings of St. Thomas Aquinas and the Church Fathers, which is great, so when do they have time to read Scripture itself?

I think it's great that literacy and the printing press has democratized the reading of books, but when you're faced with such a corpus presented by Catholic tradition, you really need to pick and choose your weekly time investments!

I've inquired with a few religious orders as a layperson. The first thing you will find when inquiring with them is the thickness of tomes that land on the table for all adherents to read. Each religious order has a particular spirituality that is synthesized in the writings of saints and mystics. So if I was not already well-acquainted and well-grounded in the Old and New Testaments, and in the habit of reading those every day, what good would it do me to read Aquinas? Or Leo XIII encyclicals? Pointless.

The Bible itself has so many layers and aspects and messages for us. Many scholars invest entire lifetimes in understanding only the Bible. The only way to be a good Christian is to live the life. It doesn't matter what books you've read, at the end of the day, only your experience and your response to the Holy Spirit. If that means reading books, then good. If that means welding metal, also good. But, don't try to break open the words of Aquinas before you've read Daniel, or Matthew!
by tmtvl | 2025-05-12 19:18:01+00:00
I vehemently disagree. 'Well, they didn't know what they were doing, so we shouldn't judge them too harshly' is a silly thing to say. They didn't know what they were doing _and still went through with it_. That's an aggravating, not extenuating, factor in my book. Kind of like if a driver kills someone in an accident and then turns out not to have a license.
by ackfoobar | 2025-05-12 19:18:27+00:00
> a byte array is in reality layed out as a (mostly empty) long array in Java

Are you saying each byte takes up a word? That is the case in the `char array` in OCaml, but not Java's `byte[]`. AFAIK The size of a byte array is rounded up to words. Byte arrays of length 1-8 all have the same size in a 64-bit machine, then length 7-16 take up one more word.

https://shipilev.net/jvm/objects-inside-out/
by gs17 | 2025-05-12 19:18:30+00:00
Some people really, really, hate being told what to do, especially when it's a (in their opinion) significant inconvenience to prevent some (also in their opinion) very unlikely hazard.

It's baffling to me too, especially cyclists without helmets. Part of why I don't cycle is because, yes, helmets are annoying, but it's too dangerous to do it without a helmet.
by hnlmorg | 2025-05-12 19:18:35+00:00
> do make sure you get anything like that in writing: an email trail where you raise your concerns about the lack of security, with a response from a boss saying not to bother with it.

A few years ago I was put in the situation where I needed to do this and it created a major shitstorm.

“I’m not putting that in writing” they said.

However it did have the desired effect and they backed down.

You do need to be super comfortable with your position in the company to pull that stunt though. This was for a UK firm and I was managing a team of DevOps engineers. So I had quite a bit of respect in the wider company as well as stronger employment rights. I doubt I’d have pulled this stunt if I was a much more replaceable software engineer in an American startup. And particularly not in the current job climate.
by tough | 2025-05-12 19:18:42+00:00
Yes OpenAI has a first-mover advantage and Claude seems to be close as a second player with their closed models too, open weights is not a requirement for success but in an already crowded market (grok's prospect) their preposition isn't competing neither with top tier closed models nor the maybe lesser-capable but more-available battle-tested freely available to run locally open ones
by winwang | 2025-05-12 19:18:45+00:00
Since you mentioned non-x86, how are things on the ARM side? I believe I heard AWS's Graviton + Correto combo was a huge increase for JVM efficiency.

FPGAs... I somehow highly doubt their efficiency in terms of being the "core" (heh) processor. However, "compute storage" with FPGAs right next to the flash is really interesting.
by jorvi | 2025-05-12 19:18:53+00:00
It's crazy to me how people are completely blind to inferring things.

YouTube is no longer using ads to pay the bills. They're using them to be user hostile.

Normally I would say "just use a different service". But YouTube is a de facto monopoly.

Hence, if YouTube wants to act user hostile, you are well within your moral rights to be service hostile.

The same people telling us to 'just watch ads' then complain when the web gets a bit more crappy the next week, when another service or site uses the shifted window of tolerable behaviour to become more user hostile in chase of a bigger cut of the loot.
by Aurornis | 2025-05-12 19:19:24+00:00
> So, you have a lot of people commenting here that this is obvious common sense

There's a lot of reductionist commentary that happens under these links primarily because people aren't reading past the headline or a brief skim of the article.

The topic might be common sense, but measuring and quantifying it with hard data is valuable.

The PR-massaged headlines usually omit the interesting parts and focus on something basic because they want to appeal to a wide audience, not because the study itself was so simplistic that it could be summarized by a headline.
by rootbear | 2025-05-12 19:19:34+00:00
I definitely remember that one, one of the first ATCs I attended. I took an NFS course and the speaker told us that after the class was over for the day, all of the Californians were planning to go out and play in the snow! I had planned to show off my brand new "DEV CAR" license plates at that ATC, but the snow was so bad I took Metro. I still have those tags.
by antirez | 2025-05-12 19:20:45+00:00
For a coincidence two hours ago I posted a video on my channel where it can be seen how king-man+woman also works with CLIP image embeddings. This may be obvious for people that worked with CLIP extensively, or that tried embeddings math in other embedding spaces, but it really surprised me.

https://youtu.be/r6TJfGUhv6s?si=wG6h1kdigiPrNFdk

Video is in English but please pardon my and my friend Italian accents...
by giantg2 | 2025-05-12 19:20:58+00:00
"but that's an exception not the rule."

No, it might only be an exception that the person didn't break the law and got the inspection. Pretty much any electrical work that would require an electrician requires an inspection by code.

Just because some of the people around you aren't following the law doesn't mean that you can really make a living that way. All it takes is one mistake and you get wiped out because you didn't have insurance and were operating illegally. I've lived in rural areas and people doing stuff as a business without the proper permits is the exception.
by Bjorkbat | 2025-05-12 19:21:02+00:00
Fair point, we use metaphor to explain and understand a variety of topics, and a lot of those metaphors are best understood through pop culture analogies.

A reasonable compromise then is that you can train an AI on Wikipedia, more-or-less. An AI trained this way will have a robust understanding of Superman, enough that it can communicate through metaphor, but it won't have the training data necessary to create a ton of infringing content about Superman (well, it won't be able to create good infringing content anyway. It'll probably have access to a lot of plot summaries but nothing that would help it make a particularly interesting Superman comic or video).

To me it seems like encyclopedias use copyrighted pop culture in a way that constitutes fair use, and so training on them seems fine as long as they consent to it.
by sjsdaiuasgdia | 2025-05-12 19:21:33+00:00
> First, the Bureau is committed to issuing guidance only where that guidance is necessary and would reduce compliance burdens rather than increase them. Historically, the Bureau has released guidance without adequate regard for whether it would increase or decrease compliance burdens and costs.

Well gee. I might just expect the Consumer Financial Protection Bureau to be concerned first and foremost with protecting consumers and put business interests at a lower priority.

"Don't ever make life harder for businesses" is a shameful policy directive.
by pixl97 | 2025-05-12 19:21:45+00:00
Also a T1D and yea, I know what you mean.

Physical activity, mental activity, and sickness can also massively effect dose.

On days I'm physically active I feel like I need less than half the dose of insulin then days I'm caught behind a desk. This said, high impact mental stress that requires lots of thinking can rapidly drop my glucose level.

And that's not counting being ill where my body will pretend like it's insulin resistant for hours then suddenly try to process it all at once.
by gs17 | 2025-05-12 19:21:50+00:00
> Crosswalks should be either half way along a road segment, or at least half a block from the vehicle intersection.

This could be fantastic, if the city was designed around it with a pedestrian grid half a block out of phase with the car grid. Without other changes, this would likely be a huge pain, so at that point we might as well work to make the whole thing far less car-dependent.
by Aurornis | 2025-05-12 19:22:08+00:00
> Odd, I would have expected this to be somewhat the case?

Well of course. Studies like this help collect data and quantify the variations.

There's more to the study than the headline or even the simple summary. Knowing the range of variations is important, as well as starting to build a foundation to understand some of the factors that lead to the variations.
by cycomanic | 2025-05-12 19:22:20+00:00
Yes when my kids were young I tried out a bunch of cargo bikes and the christiania trikes feel so unnatural and unsafe it's really hard to describe. I still ended up with a trike but it's a leaning one which feels just like a normal bike (and it's very narrow so fits through doors into backyards...). This is what I got: https://chike.de/en/ it was the best purchase I ever made! For anyone thinking about a cargo bike when having small kids; go ahead your kids will love it, you will love it!
Show HN: Jester – An RSS/Atom Reader and Content Management Tool
by dan_h | 2025-05-12 19:22:43+00:00
Jester helps you follow and organize feeds, create AI text and audio digests (with sourcing), build custom feeds from non-RSS sources, and more.

It is built to have most of the features you would expect from a modern RSS reader (with more on the way), but with an eye towards feed discoverability through popularity metrics and topic tagging.

You can try it out with one click (no email registration/etc. required). Any feedback/questions/suggestions is very welcome!

Edit: See https://jesterengine.com/digests/af9e9964-535f-4820-8d33-890... for an example digest you can create.