MurphyA/hacker-news huggingface dataset:
by amarant | 2025-09-19 03:40:20+00:00
This seems like it has some pretty great potential. Human teachers don't have infinite patience.

I recall my high school chemistry teacher's response when I was trying to understand why certain reactions happened: "just accept that these reactions happens and memorise them for the test. Don't try to understand it"

I did not become a chemist.

Now I'm in my thirties and I kinda wish I had studied something involving chemistry in university. It just seems fascinating. Unfortunately my teacher at the time did an excellent job of killing that curiosity and when I was choosing what to study in uni my first criteria was "anything but chemistry"

I can't help but imagine how different my life could've been if I had this available to me at the time!

On the other hand this AI could never hold a candle to my history teacher who showed up in full medieval armour, complete with a real sword. He even knew actual sword fighting techniques used by different nations at different times and have approximate demonstrations (slowly, no students were maimed) along with theoretical explanations of the pros and cons of each.

2 of my old classmates are now history buffs: one PhD(dissertation was on the topic of WW2) and one archeologist. That's gotta be above average for a class of ~20 kids.

But teachers like him are a rarity.
by raincole | 2025-09-19 03:40:57+00:00
Uh, exactly. See how you describe the same concept:

> A recipe is an ordered list of steps of what to do

Understandable.

> a list can be used for a recipe

Not so much.

Moreover, a recipe usually at least consists of two parts, ingredients and steps.

"pierogi_recipe": { ingredients: Set<(Item, Quantity)>, steps: List<Step> }

So the analogy kinda muddies the waters.
by psychoslave | 2025-09-19 03:43:57+00:00
It really depends on what you mean with "know" here.

The legend say that when the king tried to flee the revolution he was only recognized due to a coin with its face engraved in it. A teacher taught me this one with a variant where the king itself gave the coin to pay in a tavern. Now even it is just a legend, that also gives an interesting reflection on what it means to be famous at this time.

https://www.numismatique-en-maconnais.fr/2018/04/larrestatio...
by londons_explore | 2025-09-19 03:44:26+00:00
Before using this....

Consider what you'll do if someone ever gets root in your web server and leaks the key.

Suddenly all your UUID's need to be replaced. That tends to be impossible since they're probably part of published URL's etc.

Big companies have made similar mistakes - that's probably why for example all private YouTube videos and Google docs had their links invalidated a few years back when the key security of a decade old key couldn't be certain and the key wasn't rotatable.

TL;DR: Never use anything where you cannot rotate a key, including this.
by yellowapple | 2025-09-19 03:45:11+00:00
I'm also curious about the answer to this. An open-source third-party RCS implementation would be a massive boon to the ecosystem. It's obviously theoretically possible for non-Google-Messages SMS apps to support RCS (since vendors like Samsung were able to add it to theirs before deprecating it in favor of Google Messages), but it sounds like that's a non-trivial task (which is probably why said vendors ended up deprecating theirs in favor of Google Messages).
by 101008 | 2025-09-19 03:45:46+00:00
Crime fiction is not just alive and well, it's at the top of bestseller. Robert Galbraith's new book (The Hallmarked Man) was #1 in the bset seller list, with almost 50k copies sold (one of the most sold books of the year). And it's #8 in the Cormoran Strike series.
by phil21 | 2025-09-19 03:45:57+00:00
I mean, this is the entire intent. It lowers your resale value quite a lot too though, since it's not open for development.

I was moderately interested in a property in the middle of nowhere that had about 8 acres buildable (with two structures on it already) and about 220 acres of forest and a lake under a very strict conservation easement. It would have been the only property of that size and type I could even dream of affording. It was still expensive, but less than a million dollars where if that 230 acres had not been under conservation easement in the same area it'd have sold for over 10.

And it's not like indefinite means forever forever. If the next generation 4 generations from now decides these easements are not in their best interest they will be repealed. It's just a piece of paper in the end.
by D-Machine | 2025-09-19 03:48:07+00:00
Thing is, even if the "trying to portray [him] as anything other than..." reading was intended and the correct reading, the statement is still closer to the opposite of the truth.

Granted, it is not reasonable to expect everyone to have been terminally online for this issue, but even before this statement was made, it was clear if you visited places with right-wing bias (e.g. 4chan) that almost no one was concerned this guy might be MAGA. And if you looked at more grey tribe places (e.g. ACX open-thread comments / discussion), it was also already clear the preponderance of evidence and reason in fact definitely point to it being far more likely the guy was left than right (or at minimum some idiosyncratic, but definitely not "groyper" or "MAGA" rightist). Heck, this was even clear if you read through enough Reddit comments sorting by "controversial".

Also, it was abundantly clear the sentiments were: Blue tribe social media desperately looking for evidence against obvious left/progressive connections, Red tribe media gleefully pointing out left/progressive connections, and gray tribe places generally having the usual mix + typical frustration at the over-certainty of everyone else.

I.e., the reality is that the "desperation" was almost entirely on the left (understandably) trying to disown the shooter. What there was on the MAGA right was maniacal glee about all the potential (and prima facie more reasonable) left-wing connections. I doubt noting these overall patterns instead would have saved Kimmel, but choosing to frame the whole thing as "desperate MAGA" was just an insinuation that really ran directly opposite to the facts and reason.
by dsr_ | 2025-09-19 03:48:57+00:00
Looking at other houses in the neighborhood, it's probably about 10-15% because it's the Lynch residence, and the rest of it is the extent of the land, the number of houses, and, of course, the place where it is.

By way of contrast, this is listed for 2.5x the money on the other side of the canyon:

https://www.zillow.com/homedetails/1851-N-Stanley-Ave-Los-An...
by bitwize | 2025-09-19 03:49:54+00:00
The problem with Linux, they say, is that you have to fiddle with it endlessly to get it working; Windows, by contrast, Just Works Right Out of the Box.

Oh, but you don't actually want to use Windows as it comes out of the box, so they tell us you have to use a custom build, replace utilman.exe with cmd.exe, create an unattend.xml, don't connect it to the internet during the install procedure, run these commands, make these registry changes, apply these group policies, and install these aftermarket utilities and then you can FINALLY get a decent Windows experience.

Just don't use Windows Update, or it will all be reset again.

I'm glad I left that world behind.
by com2kid | 2025-09-19 03:51:14+00:00
This kind of shit used to be explicitly tested against. Get a Windows 7 install, fill up all but the last few bytes on the main HDD, it'll work fine, you'll be able to login and delete stuff.

Completely saturate memory, RAM full, swap full, the OS will still work. It'll be slow and messy, but you'll be able to navigate around enough to get shit ton.

Heck I suspect these scenarios would work even on Windows 10.

What kind of laughable tests doesn't even bother with the most obvious edge cases of "disk full"?

That isn't an uncommon scenario, quite the opposite, it is a very common scenario.
by yellowapple | 2025-09-19 03:51:48+00:00
“Do non-American LLMs (e.g. DeepSeek, Mistral, Apertus) perform better or worse here? Do they have their own cultural biases in-built?”

I'm wondering the same thing, in addition to the related question of “Would an LLM perform better or worse if prompted with languages other than English?”.
by CodeMage | 2025-09-19 03:51:52+00:00
> Keep in mind the goal is to teach someone who has zero ideas about datastructures what they are, not to give some analogies to an experienced software engineer.

I agree, which is exactly the problem I have with your objections. If you're teaching data structures to a kid with zero knowledge, you do it gradually, rather than trying to turn them into an experienced software engineer right from the start.

Start with an oversimplification and then build on top of that. The point of an introductory example is to focus on a single concept or a single aspect, and communicate it in a way that is intuitive to someone with no knowledge of it, without overwhelming them or distracting them with additional details. Then, once they've grokked it, challenge them to find flaws in the oversimplification and use that to teach the next concept.

> Ask a kid to draw you a mock recipe, you won't just get a list of steps in return.

Depends on the age. When they're young enough and haven't actually done any serious cooking, kids tend to think that recipes are a series of steps.

Hell, a lot of adults I know, when I ask them something like "how do you make X", start by explaining the steps instead of laying out all the ingredients and their quantities.

This is exactly what I'm talking about when I refer to overwhelming or distracting your students with additional details. You're not trying to build a cookbook app, you're trying to teach someone about a specific data structure.

> Ingredients have quantities attached. If I tell you to make a cake you need sugar, an egg and flour and give you all the steps but no quantities, you're not making a cake. A map is the obvious choice for storing ingredients.

If you're trying to teach sets and your domain of choice is cooking, it makes sense to start with a "list of unique ingredients". You're focusing on uniqueness as a property of sets. Then, once you've explained sets, you can point out that a list of ingredients without quantities isn't very useful, which gives you a great way to introduce maps.

As a bonus, if you've already taught your students about tuples, you can then compare a set of tuples and a map, drawing parallels and pointing out important differences.

> At best it would be somewhat understandable if it said a map can be used for a cookbook, with dish names mapping to recipes, but even this would be a stretch and assume a dish can be made in a single way.

Again, you're thinking like an experienced software engineer. Yes, you can totally assume a dish can be made in a single way if you're teaching kids.

If I'm introducing "string" as a concept for the first time, I won't immediately start explaining the difference between a byte, a Unicode code point, and a glyph.
by smelendez | 2025-09-19 03:52:04+00:00
I haven’t read it but I think that’s genuinely interesting and not obvious.

And probably could change based on the roles of first and second wives and, yes, how male status plays out and how it influences the life of the wife.

We don’t have legal polygamy but in many places there’s not much stopping people from living in an unmarried multi-woman household with a man (or vice versa). But it’s not a very common arrangement, and it’s interesting to think about why.
by pxc | 2025-09-19 03:56:14+00:00
GUIs (and especially buttons) are most useful for things I do infrequently. Frequent tasks are better done by keyboard shortcuts or command line utilities anyway. The only places where I routinely click on label-less icons are in the menu bar/system tray and my browser's always-visible toolbar.

I guess both of those places are especially space constrained, which maybe makes it feel more worth it to me. And I also actively arrange all the items in both cases, choosing not just the arrangement but which will show at all. That means I know them basically as soon as I throw them down.

I wonder if it would be crazy to have the labels on shown-by-default buttons fade only after a certain number of clicks on them.
by jacquesm | 2025-09-19 03:56:20+00:00
I've invested in a couple of hardware start-ups, some of their products were not even close to what you guys are doing complexity wise. I will forward your post to them as a nice example of how it is done. My career has moved in-and-out of the crossroads between hardware, software, mechanics and other applications of technology and I suspect that you've aged a year in those 8 weeks on account of all of the setbacks and restarts. And yet, you pulled it off. I hope your demo day demo went well and that your round ended up oversubscribed, you've certainly deserved it.
by afavour | 2025-09-19 03:59:51+00:00
The idea that anti-AI posts on HN are PR hit jobs (paid for by..?) strikes me as conspiracy theory.

The simple reality is that hype generates an anti-hype reaction. Excessive hype leads to excessive anti-hype. And right now AI is being so excessively hyped on a scale I’m not sure I’ve seen in all the years I’ve been working in tech.
by vlovich123 | 2025-09-19 04:00:00+00:00
The kernel is different because it’s not safe to access Untrusted until you copy it locally. Only then can you start parsing. Otherwise you run the risk of TOCTOU security vulnerabilities parsing user space input which then changes the next time you try to access it.

Untrusted doesn’t validate - it just ensures you don’t accidentally access the data until you’ve ingested data that could be potentially attacking you.
by rgovostes | 2025-09-19 04:00:40+00:00
Many years ago, ~2009ish, a friend pointed out that Calculator.app was giving the wrong sign when raising a positive number to a negative exponent. It turned out to be a bug in CFNumber affecting virtually every app.

I noticed the other day that you can type "1+1 sq ft in sq in=" and macOS will helpfully autocomplete the answer: 1,694.0031 square inches. Which is completely wrong. 2 square feet is 288 square inches. It took a few minutes to solve the puzzle of what the hell it is doing.

So take caution trusting Apple's math, which naturally is up to 2x better³—for some value of x.
by dlubarov | 2025-09-19 04:00:51+00:00
> This is basically very similar to what happened in North America with European colonists and Native Americans

This is a complicated analogy. There was no sovereign, so noone to decide on an immigration policy and no arbiter of legality.

Some settler groups purchased land and had good relations with natives. We don't tend to deem those problematic merely because people relocated and didn't look like the other people living there at the time. Many settlements were of course problematic for other reasons.

A closer analogy would be black families legally relocating to safer white neighborhoods, "against the will of the people who live there". If a neighborhood flipped from majority-white to majority-black, and black politicians gained power, would you say the white community gave up something that was rightfully theirs?

> Without the ethnic cleansing carried out by Zionist militias (and the IDF, after it was officially founded), there would be no Israel. The entire basis for Israel's existence is the creation of a large Jewish majority in a substantial portion of Palestine. That happened through the mass ethnic cleansing campaign in 1947-48.

This isn't accurate at all. There was already a Jewish majority in the proposed Jewish state by the time of the partition plan. Hundreds of thousands of additional Holocaust survivors were expected. Ethnic cleansing of Jews from surrounding Arab states also greatly contributed to what became a much stronger Jewish majority.

> against the will of the people who live there

I don't believe a demographic majority has some inherent right to deny access to minorities who wish to legally immigrate.
by johnfn | 2025-09-19 04:01:17+00:00
I don't think that's a fair comparison at all. The Cambridge Analytica stuff was probably some of the ethically worst stuff that Zuckerberg and Meta has ever done, and they absolutely deserved to get raked over the coals for it. AI glasses and VR are nowhere in the same ballpark. In fact, that the two discussions are tonally similar seems to support my argument.

The discussion yesterday was fine. If that was the only conversation we had, I wouldn't be worried.
by defrost | 2025-09-19 04:01:25+00:00
You might be interested in RadiaCode (full gamma spectrum) and RadiaCode Python Library - https://www.radiacode.com/ and https://github.com/cdump/radiacode

For Radon detection options are

* direct alpha detection via wet film + process (slow, and day turnover physical processing) OR optical scintillation of filtered air, or

* stochastic gamma detection via a full spectrum and a formula to identify and divide out main peaks and daughter peaks of overlapping common radiometric decay (Uranium, Potassium, Thorium) to guesstimate the radon
by eru | 2025-09-19 04:03:30+00:00
> So, in the end, people just started giving the best possible feedback regardless of the team or manager performance.

That seems to be the best possible strategy for any feedback you have to give as a captive audience?

Reminds me of the feedback German companies are forced to give about their employees. It's like a formal letter of reference, but you can and will be sued if you you anything negative. Consequences are as you would expect.

And because there has been an inflation in how complimentary these letters are, people started suing when their letter wasn't flowery enough, because that somehow could be read as an implicit criticism. (Just like how A is a bad mark, when everyone else gets A+.)
by bamboozled | 2025-09-19 04:03:46+00:00
It's funny because he spent so much money on hair and clothing stylists, jewellery, BJJ coaching, surfing lessons , really made an effort to come across as "cool" and the end result is...you cannot fake who you are, and your actions are what define you and make up your character, he is prime example of that. He cannot escape who he is.
by CalRobert | 2025-09-19 04:05:41+00:00
I wonder how well this math works for things like sociological phenomena.

""" According to their model, a tipping point in the AMOC should occur between 2025 and 2095, with 95% confidence. They expect it in 2057. """

As someone with a Dutch mortgage due to be paid off in 2055 I'm not sure what to do...
by dang | 2025-09-19 04:05:54+00:00
The mods' job is to prevent the community system from falling into its failure modes, and/or to jig it out of them when it does (https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...). In that sense, posting like I did there is very much our place. (Not personally, of course, but in the role.) Whether I pulled it off well or not is a separate question.

> there's plenty of hardly subtle trolling you're letting by

I'd need specific links to respond meaningfully. Generally, though, if you see a post that ought to have been moderated but hasn't been, the likeliest explanation is that we didn't see it. There's far too much content here for us to see it all, let alone read it all. You can help by flagging it or emailing us at hn@ycombinator.com.
by downtownai | 2025-09-19 04:06:02+00:00
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by tropdrop | 2025-09-19 04:06:44+00:00
ChatGPT is worse in Russian. Example: after accurately noting that a name appeared in a particular Russian book, it asked if I wanted the direct quote in Russian. I said yes. At this point it switched to Russian output but could no longer find the name in that book, and then apologized for having used what seemed to have been "approximations" about the book before.

(I did then go and check the book myself; ChatGPT in English was right, the name is there)
by reilly3000 | 2025-09-19 04:07:04+00:00
HN irony never ceases to amaze. We’re on a forum hosted by a (the?) startup accelerator. Commercializing an open source project is fraught with challenges. The amount of dissatisfaction and dissent is disturbing. I also see a lot of supportive and nuanced takes. Most of us are here because we make money by making software. Shouldn’t we be rooting for people who are doing the same?
by jm4 | 2025-09-19 04:07:26+00:00
Nope, no clipboard manager. There’s a nice extension called pano with a bunch of ridiculous dependencies that’s loaded with features. The one built into KDE is good enough for me.

GNOME looks great, but it’s just so damn frustrating to use. It’s such a weird combination of attention to detail and a focus on usability while completely missing the mark in other areas. I don’t even mind the intended workflow. That’s fine. It’s the rough edges like the hamburger menus you mentioned, extra clicks, inability to change things I expect to be able to change, etc. You have to install gnome-tweaks just to change the font.

I wouldn’t even mind the extensions either if they didn’t break during every update. Best case scenario is you have to re-enable the extension, log out and log back in. Worst case is it doesn’t work anymore and now you’re missing important functionality that the developers couldn’t be bothered to include.
by Terr_ | 2025-09-19 04:07:54+00:00
> If a rope supports a load

Rambling off-topic, but I remember being very impressed at how a uniform hanging rope makes a catenary [0] shape which is related to making strong structural arches.

So maybe if the students were somewhere where the class could design and make an igloo... :p

[0] https://en.wikipedia.org/wiki/Catenary
by bamboozled | 2025-09-19 04:08:20+00:00
It's less about the failure, and more about the person selling the product, we don't like him, or his company, and that's why there is no sympathy for him and he knows that.

When it went bad he could instantly smell blood in the water, his inner voice said, "they know I'm a fraud, they're going to love this, and I'm fucked". That is why it went the way it did.

If it was a more humble, honest, generous person, maybe Woz, we know he would handle it with a lot more grace, we know he is the kind of person who would be 100x less likely to be in this situation (because he understands tech) and we'd be much more forgiving.