MurphyA/hacker-news huggingface dataset:
by cyberax | 2025-11-22 22:49:19+00:00
To add to this, even with the shielding provided by water in light water reactors, the neutron exposure is _the_ limiting factor for the reactor vessel.

The metric to look for is called "DPA" (displacements per atom), the number of neutron collisions that a material can tolerate before losing enough structural integrity to fall below the acceptable limits. The best modern reactor steels are at 150-180 DPA.

And a lot of potentially cool reactors like TWR (travelling wave reactor) end up being logistically impossible because lifetime-limited components will be exposed to multiple hundreds of DPAs.
by pabs3 | 2025-11-22 22:49:57+00:00
On YouTube or Netflix, look up the Fresh Water episode of the Our Planet documentary series by David Attenborough, fresh water is disappearing all over the place due to our actions.

https://en.wikipedia.org/wiki/Our_Planet https://www.ourplanet.com/ https://www.ourplanet.com/en/explore/fresh-water/ https://www.youtube.com/watch?v=R2DU85qLfJQ
by copypaper | 2025-11-22 22:51:17+00:00
Every single SDK I've used was a nightmare once you get past the basics. I ended up just using an OpenRouter client library [1] and writing agents by hand without an abstraction layer. Is it a little more boilerplatey? Yea. Does it take more LoC to write? Yea. Is it worth it? 100%. Despite writing more code, the mental model is much easier (personally) to follow and understand.

As for the actual agent I just do the following:

- Get metadata from initial query

- Pass relevant metadata to agent

- Agent is a reasoning model with tools and output

- Agent runs in a loop (max of n times). It will reason which tool calls to use

- If there is a tool call, execute it and continue the loop

- Once the agent outputs content, the loop is effectively finished and you have your output

This is effectively a ReAct agent. Thanks to the reasoning being built in, you don't need an additional evaluator step.

Tools can be anything. It can be a subagent with subagents, a database query, etc. Need to do an agent handoff? Just output the result of the agent into a different agent. You don't need an sdk to do a workflow.

I've tried some other SDKs/frameworks (Eino and langchaingo), and personally found it quicker to do it manually (as described above) than fight against the framework.

[1]: https://github.com/reVrost/go-openrouter
by programjames | 2025-11-22 22:52:08+00:00
We could all learn from Hengshui.

(This is kind of a joke, because while the Hengshui school system is much more meritocratic, including in teacher salaries, it's also infamous for a stressful school environment. It's not really a joke though. While there are problems with the long hours, it's definitely better than whatever America has going on.)
by cesarb | 2025-11-22 22:52:13+00:00
> Maybe skipping v2 has a negative cost even.

I've seen this plenty of times: v1 of some library has one way of doing things, v2 of that library changes to a new incompatible way, and then v2.1 introduces a few extra changes to make it easier to port from the v1 way. If you wait a while, you have to do less work to update than if you had updated immediately.

One example is Python 3. After the first few Python 3.x releases, a few "useless" features were introduced to make it easier to port code from Python 2.7 (IIRC, things like reintroducing the u'...' syntax for unicode strings, which had been removed by Python 3.0 since normal '...' strings are now always unicode strings).
by quamserena | 2025-11-22 22:52:38+00:00
It clearly hasn’t been passed through a PR team or ChatGPT; if it had been you’d expect them to fix the grammatical errors. It’s an honest stream-of-consciousness blog post almost certainly written by Charli XCX herself and herself alone about her thoughts, and it is honest and unapologetic. What word more describes this than “raw”?
by johannes1234321 | 2025-11-22 22:52:49+00:00
At least pre AI it was easy to identify if a blog was done due to interest or for self advertisment.

I haven't been recruiting recently but goes it's even simpler to identify blogs full of loveless AI slop and people who care about a topic. (Even if they use AI for language assistance etc)

Topics, which details being presented, frequency, ...
by sfink | 2025-11-22 22:52:52+00:00
It could still be at risk as collateral damage. If the AI bubble pops, part of that would be actual costs being transmitted to users, which could lead to dramatically lower usage, which could lead to any AI integration becoming irrelevant. (Though I'd imagine the financial shocks to Mozilla would be much larger than just making some code and design irrelevant, if Mozilla is getting more financially tied to the stock price of AI-related companies?)

But yeah, Mozilla hasn't hinted at training up its own frontier model or anything ridiculous like that. I agree that it's downstream of that stuff.
by henrebotha | 2025-11-22 22:53:34+00:00
There are real limitations to this: You can't arbitrarily mix and match HTML and Markdown. As soon as you introduce an HTML block, you're locked out of Markdown syntax.

AsciiDoc lets you mix and match however you want. Or, put differently: AsciiDoc's superiority over Markdown extends even to being better at shelling out to HTML.
by andrewinardeer | 2025-11-22 22:53:36+00:00
I couldn't think of anything worse than to be known world wide.

You couldn't go out in public without being hounded or swamped by people. The parasocial relationships people form with you can put your life in danger.

Even worse is being a politician - particularly at a global leader level. Surely there has been an average Joe who has shithoused their way into being a leader of a significant country. Once you do that, with politics being as toxic as it is, for the rest of your days you can be a marked person.
by WalterBright | 2025-11-22 22:53:46+00:00
Not truly exceptional? Some fun facts:

1. The immigrants came by the boatload from Europe to the US. Not the other way around. The Titanic was built for that purpose.

2. The immigrants were the poor of Europe, not the wealthy.

3. The US middle class and upper middle class and the wealthy came from those poor people. I can't think of any American wealthy families that came from the wealthy of Europe.

4. The height of Americans increased dramatically from 1800 to 1900. This is only possible by plenty of food being available. Visit Fort Henry and look at the uniforms of the 1700s. They look kid sized.

5. The uniforms of Civil War soldiers look teen sized. You can see them for yourself in the Gettysburg museum.

6. In WW1 when the US Army arrived on the scene, the Germans were shocked at their height and high quality plentiful food, and then knew they had lost the war.

7. The US supplied all the Allies in WW2 (including the USSR), provided the shipping fleet to do it, floated two navies, one for the Atlantic and one for the Pacific, and simply buried the Axis under the weight of all the hardware it made.

8. The Wehrmacht relied on horses.

9. The European middle class did not have cars until after WW2. The pre-war US filled the country with Model T's for everybody.

10. My grandfather started out shoveling coal in a steamer (a dirty, rotten job). By the turn of the century, he had his own middle class home, and later a vacation home and a couple cars.

America truly is exceptional.
by Forgeties79 | 2025-11-22 22:54:14+00:00
I don’t really care what the motivation is. If it means we get green energy over more coal-fired plants/fossil fuel sources than whatever. Call it Super Awesome MEGA PATRIOT Fuel for all I care. Right now we have an administration touting the virtues of “beautiful clean coal” on its official government website - https://www.whitehouse.gov/presidential-actions/2025/04/rein...
by vrighter | 2025-11-22 22:54:23+00:00
cost goes down by 50% (it didn't) but you fake improvement while lacking any real improvement by taking the average of 4 runs. Cost just doubled, even though inference technically halved.

Never mind the fact that the current model is alwayj outdated, and a new (bigger one) one is always being trained in parallel with the supposedly "cheaper" inference.
by dr_dshiv | 2025-11-22 22:54:25+00:00
Does everything come down to waves or to bits?

Well, if it’s waves, perhaps principles of consonance and dissonance might apply.

Robert Hooke thought so…

“Now as we find that musical strings will be moved by Unisons and Eighths, and other harmonious chords, though not in the same degree; so do I suppose that the particles of matter will be moved principally by such motions as are Unisons, as I may call them, or of equal Velocity with their motions, and by other har∣monious motions in a less degree.

I do further suppose, A subtil matter that incom∣passeth and pervades all other bodies, which is the Menstruum in which they swim which maintains and continues all such bodies in their motion, and which is the medium that conveys all Homogenious or Har∣monical motions from body to body.

Further I suppose, that all such particles of matter as are of a like nature, when not separated by others of a differing nature will remain together, and strengthen the common Vibration of them all against the differing Vibrations of the ambient bodies.

According to this Notion I suppose the whole Universe and all the particles thereof to be in a con∣tinued motion, and every one to take its share of space or room in the same, according to the bulk of its body, or according to the particular power it hath to receive, and continue this or that peculiar motion.

Two or more of these particles joyned immediately together, and coalescing into one become of another nature, and receptive of another degree of motion and Vibration, and make a compounded particle differing in nature from each of the other par∣ticles.

All bulky and sensible bodies whatsoever I suppose to be made up or composed of such particles which have their peculiar and appropriate motions which are kept together by the differing or dissonant Vibrations of the ambient bodies or fluid“

Page 9: https://quod.lib.umich.edu/e/eebo/A44322.0001.001/1:3?rgn=di...
by hajile | 2025-11-22 22:55:00+00:00
This theory is a science-free zone. It seems far more likely that the drug induced sudden, overwhelming suicidal thoughts than someone said "I feel the best I've ever felt and life is looking up. I think I'll kill myself and make all the good feelings go away".

Furthermore, if the latter were true, it would be an indication that depression was a symptom rather than a cause and the psychiatrist misdiagnosed and improperly treated the patient.
by nrhrjrjrjtntbt | 2025-11-22 22:55:10+00:00
It is not features but structure and undetstanding that is missing.

That said I am not sure what the solution is to that since your docs may need structure my docs dont need. Therefore you cant solve the "semantic" outside of a "namespace" of what you agree in your organization.

E.g. you may decide architecture diagrams are in Mermaid but that is by no means a stanfard and my org uses embeded svg.

So to go full circle... you are right just use HTML. After all it's semantic isn't it ;-)
by 1718627440 | 2025-11-22 22:55:12+00:00
Exactly what I mean.

> I don't think it ever came back, intellectually, from the Holocaust.

I also find that sad, but honestly why would they? There weren't exactly welcomed throughout the history in Europe. While there were phases when they were, the opportunity to have your own state with people just like you certainly sounds convincing. In addition a lot of people simply couldn't, since they were dead or for some deported/"emigrated".

As for my home country, Germany, while we retained the cultures of the rich capital owners, we lost the cultures of the poor philosophers and smart statesmen. I think this is a deep hidden reason, why we suck now-a-days. Another culture, that wasn't as rich for philosophers and state men, but instead for entrepreneurs and competitive societies, didn't lost their landscape, but instead was destroyed by 40 years of socialism.

I think we should stop blaming the social and political landscape on idioticity, but instead recognize it as the successful work of 60 years of dictatorial indoctrination it is.
Ask HN: Can you share what you built using Cursor/Agentic IDEs?
by ludamn | 2025-11-22 22:55:25+00:00
I had played with Cursor/Claude Code a bit but would like to see the result of other people's work using these tools, bonus point if you can share the source.

If it matters, I'm asking this to gather information to make a decision, I received an offer to work in a company that requires all code to be crafted this way.

I already have a good job and I'm happy with it, so besides a much bigger/trendier name in my CV and more pay there's not a lot in this opportunity for me. I'm also aware that if I were to leave my current position my team could be heavily affected since I usually play a key role in helping us deliver work on time (not that my company would do the same for me, but at the end of the day I don't want to willingly screw my coworkers' chance of success/stability).

As for this new opportunity: What concerns me is that I'm worried about the scale/size of the applications and if current SotA LLMs are capable of building something that's maintainable in the long run. They're a big name company and this work isn't for any of their main products, so I fear that this might just be a pet project for them and if it doesn't work they will scrap everyone involved in the project in a few months.

Sorry for asking this on a public forum, unfortunately I don't have folks in my circle that could help me w/ this question, so all I can say is thanks in advance for your help :bow:!

PS I tried googling and didn't find conclusive results to this question (this is a polarized topic!), it doesn't help that most links I found in popular reddit threads on this subject are dead, the most notable app I found was WithAffluent
by plasticeagle | 2025-11-22 22:55:32+00:00
I feel absolutely confident that Charlie XCX would never use generative AI in any form. And this sentence is lovely;

"...let some random person you’ve just met in the bathroom try on the necklace around your neck that is equivalent to the heart of the ocean"

Like you I always look for signs of AI in writing I see online, and it's incredibly disappointing how often it's there. There's no personality, no charm, nothing unique - just the same flawless grammar and overuse of cliche. This piece is filled with the quality of humanity that we once took for granted. This is what we are losing.
by throwbipolar | 2025-11-22 22:56:04+00:00
There are many mentally ill people who "power through", though. Some call it high-functioning depression.

There are different severities - a small depressive episode, a multi-year dysthymia or mixed (manic + depressive) episode.

I've been managing OK without meds, but maybe simply depression wasn't as severe as that of other folk. It's still a mental illness.

However, the effectiveness of Mindfulness based stress reduction and acceptance & commitment therapy show that those who can distance themselves from their thoughts have developed "mental resilience"
by WalterBright | 2025-11-22 22:56:28+00:00
LOL, thanks for the kind words! I just happened to like working on compilers, as few programmers will touch them. If you're ever in the Seattle area, we have a monthly D Coffee Haus where we drink and talk about languages, compilers, airplanes, cars, and physics. All are welcome!

(Even C++ people show up! All in good fun.)
by WA | 2025-11-22 22:57:08+00:00
You need:

- table of contents

- automatic chapter and section numbering

- cross references and automatic tracking of figures, tables etc.

- different styles besides blockquotes such as info sections, warnings, tips

Imho, cross-referencing chapters, pages, figures, tables and the lack thereof in Markdown is the first and most important thing to check how you would like this to be solved.
by amiga386 | 2025-11-22 22:57:21+00:00
You should read the Strange Case of Dr Jekyll and Mr Hyde as a follow up.

The original inspiration for it was Stevenson hearing about respectable pillar of Edinburgh society, William Brodie, being caught as a burglar, stealing to repay his gambling debts. Your social capital in Victorian Britain was based around your outward appearance of respectability and had to be defended to the utmost. If you were outed as a criminal, or as a homosexual, you'd lose every shred of privilege and position.

With that in mind, you can imagine the duality of Dr Jekyll trying to maintain his good standing while licentious Mr Hyde wants to engage in hijinks?

One such reading of the novella: https://sci-hub.st/10.1525/lal.2012.24.1.21
by wk_end | 2025-11-22 22:58:20+00:00
If I saw that in a PR I would push very hard to reject; something like that is a maintenance burden that probably isn’t worth the cost, and I’ve been the most hardcore about types and TypeScript of anyone of any team I’ve been on in the past decade or so.

Now, that said, I probably would want to be friends with that dev. Unless they had an AI generate it, in which case the sin is doubled.
by mrdependable | 2025-11-22 22:58:51+00:00
I found it pretty hollow too, but I probably went into it with the wrong expectations. The title of the article sounds promising, and the writing is decent enough that I believe something interesting could be said, but in the end it felt less introspective and more self-indulgent. I'm sure she could write the essay I was hoping to read, but it turned out to be the essay I should have expected instead.
by thenaturalist | 2025-11-22 23:01:18+00:00
This reads like a sleek way to weasel oneself out of responsibility.

So what you're effectively implying is that the court of public (in Israel instances very clearly biased) opinion rules the site?

So guidelines for thee (Israel supporters) but not for me (Israel haters and Antisemites).

A famous poem from Martin Niemöller, who actually lived through facism comes to mind:

First they came for the Communists And I did not speak out Because I was not a Communist Then they came for the Socialists And I did not speak out Because I was not a Socialist Then they came for the trade unionists And I did not speak out Because I was not a trade unionist Then they came for the Jews And I did not speak out Because I was not a Jew Then they came for me And there was no one left To speak out for me
by roughly | 2025-11-22 23:01:23+00:00
> Like many of his predecessors, Reverend Stone believed that the remedy to a malady could be found close to the cause. That is, if people were becoming sick in a certain place, there should be a plant or other remedy nearby.

Huh, this paragraph caught me - I was recently involved with a group using large-scale environmental metagenomic sampling to try to find good candidates for a drug discovery pipeline. The working theory was that bacteria use chemicals to fight off attackers, and if the bacteria was going to produce potentially lethal amounts of a substance designed to kill other bacteria, it would need a "sink" for that substance as well, and that would likely be co-located in the genome (so when the gene for the dangerous chemical gets activated, its sink is likely to get activated as well) - so, find something in the metagenomic library that looks like the substance causing you problems, and then look nearby for something that might be a cure. Funny to revisit this kind of observational thinking from a more modern perspective.
by GOD_Over_Djinn | 2025-11-22 23:01:40+00:00
It’s not anti-social, it is pro-social. To stand for the right of people to live freely, for children to get an education and to socialize with their peers, for businesses to serve their communities and provide jobs for people to feed their families.

You are the anti-social one, who would condemn entire populations to house arrest based upon dubious-at-best ideas. In my city, even outdoor gatherings of more than five people were prohibited. It was so absurd as to be almost comical, if the consequences weren’t so tragic.

Are you truly blind to the damage wrought by shutting down the entire world at the flip of a switch? Children are in crisis, inflation skyrocketed, people cannot afford to live, buy homes, start a family, get an education… and you have the nerve to call me anti-social?

And what did it accomplish? Did it actually save lives? I think not, especially when compared to targeted protection and support of vulnerable populations (elderly, immune compromised) rather than a blanket shutdown of the entire country.

Once this issue became a red vs blue thing, everyone collectively turned their brains off. The above commenter is a prime example.
by tefkah | 2025-11-22 23:03:49+00:00
typst is great, but there are many many steps between “markdown isn’t sufficient” and reaching for typst.

1. typst only really has pdf output at the moment 2. so much less tooling available (linters, site builders, converters etc) 3. much less of a markup format, extremely tightly coupled to a specific tool (typst compiler)

again, love typst, but it has (atm) so much fewer applications
by defrost | 2025-11-22 23:04:01+00:00
There's also a decade plus of various "Net Children Go Mobile" annual surveys across major tecnological countries that plot the diffusion of phone use and ownership by age and country.

Leading to a large ANOVA table of years, countries, ages, mental health statitics, etc.

Yes, Denmark measures these things is ways different to the UK and both differ from the US.

All the same, each being reasonably internally consisent across time means trends can be picked after normalising.

The case for whether encroaching phone use does correlate with increased early onset mental issue diagnoses becomes a consideration of thresholds and variances.

https://www.researchgate.net/publication/283320908_Net_Child...
by windexh8er | 2025-11-22 23:04:25+00:00
1) If you have to use a manufacturers app for updates that's already falling into my point. 2) There are plenty of threads out there discussing manufacturers that leverage Matter but they force their own controller to be able to be used. A lot of these are together at builders as another revenue stream for them.

Finally... This [0] does a better job of explaining the issues with Matter. But, Matter is ultimately a joke. It was promoted as a standard by vendors nobody should trust for interoperability at this point.

[0] https://community.home-assistant.io/t/if-matter-is-a-suppose...
by amitav1 | 2025-11-22 23:05:31+00:00
I use Org-mode w/ GNU Emacs for all of my blogging(shameless plug: amitav.net). I like Org-mode because it's easy enough to write, looks nice enough, can be exported in quite a few formats, and the code block handling is chef's kiss. It supports quite a few languages and has a feature I've seen in no other editor before, where you can chain together code from different code blocks, and evaluate it, inside of the document itself. I tried out a few different blogging platforms with first class Org-mode support ([Blorgit](https://orgmode.org/worg/blorgit.html) and [lazyblorg](https://karl-voit.at/tags/lazyblorg/)), but they ended up taking up a bunch of time to set up, so my current process is just manually exporting my Org files to HTML, then using rsync to send them over to my server, then I have a Ruby script which just appends an index to the bottom of each file and serves it. I find Org-mode a lot more expressive and natural to write than my previous blogs which were in Markdown.
by surprisetalk | 2025-11-22 23:06:21+00:00
No clue why this is on HN, but Bjork is brilliant. IMO one of the greatest living musical artists. If you haven’t listened to one of her records, I recommend starting with Homogenic

EDIT: For deeper dives, note that each album is generally thematic. Vespertine is about physical intimacy, Volta experiments with percussion, Medulla is 100% human vocals, etc. Wikipedia is your friend here :)