MurphyA/hacker-news huggingface dataset:
by jbm | 2025-09-07 22:52:42+00:00
Yes, this is very much my experience too.

Switching to GPT5 Thinking helps a little, but it often misses things that it wouldn't when I was using o3 or o1.

As an example, I asked it if there were any incidents involving Botchan in an Onsen. This is a text that is readily available and must have been trained on; in the book, Botchan goes swimming in the onsen, and then is humiliated when the next time he comes back, there is a sign saying "No swimming in the Onsen".

According to GPT5 it gives me this, which is subtly wrong.

> In the novel, when Botchan goes to Dōgo Onsen, he notes the posted rules of the bath. One of them forbids things like: > “No swimming in the bath.” (泳ぐべからず) > “No roughhousing / rowdy behavior.” (無闇に騒ぐべからず) > Botchan finds these signs funny because he’s exactly the sort of hot-headed, restless character who might be tempted to splash around or make noise. He jokes in his narration that it seems as though the rules were written specifically to keep people like him out.

Incidentally, Dogo Onsen still has the "No swimming sign", or it did when I went 10 years ago.
by sgsjchs | 2025-09-07 22:52:50+00:00
> what difference would it make

The same difference as making pointers always non-nullable and reintroducing nullability via an optional wrapper only when semantically appropriate.

> what could you possibly do with an arbitrary user-defined class

Just add some customization points to std::optional so that users can define which value of the class to treat as noneopt internally.
by JKCalhoun | 2025-09-07 22:52:57+00:00
I'm still falling in love with dedicated devices.

My Sony digital camera is still a lot of fun (so are my medium- format film cameras for that matter). Of course the phone is the camera I always have on me.

I have plenty of other dedicated devices but I'm kind of lazy to think about them, list them. (A digital 12-channel recorder/mixer just jumped to my mind though.)
by LeifCarrotson | 2025-09-07 22:53:07+00:00
They've ratcheted the price up each release to change your threshold of what a fitness watch should cost. Same with phones and cars.

A $300 Forerunner 235 did all those things except the scuba stuff, which only a small number of people need (and most of those people really want an actual dive computer when their life is on the line deep underwater).
by skissane | 2025-09-07 22:53:26+00:00
It actually does have typed values, it is just the schema didn’t constrain the value types stored in each column, until relatively recently the column type was mostly just documentation. However, now it has STRICT tables which do constrain the value types of columns. And for a lot longer you’ve been able to implement the same thing manually using check constraints-which is a bit verbose if you are writing the schema by hand, much less of a problem if it is being generated out of ORM model classes/etc
by hnlmorg | 2025-09-07 22:53:34+00:00
The lack of earbuds is a welcome change because the included ones were almost always shit. Either sound quality wise, build quality wise, or simply just the lack of different silicon moulds for different ear shapes.

I do miss the power bricks though.

As an aside, you’d almost always want more than 5w to charge modern handsets in any reasonable time.
by jacquesm | 2025-09-07 22:54:43+00:00
Asteroids are hit-and-miss composition wise (though you can determine quite a bit by observing them), but when they are a hit they tend to be really valuable. The problem then is that you need to get to them and then the next problem is that you need to get back to where you came from.

Both of these can hurt your ROI considerably assuming you can solve for them at all with the masses involved. They're also usually moving at a pretty good clip and are bad to set up long term for. I think until we have a long term presence in the asteroid belt that this is mostly going to be SF rather than that it will actually happen.
by crote | 2025-09-07 22:55:26+00:00
It's a side effect of the economics of nuclear power.

The cost of the nuclear fuel is more-or-less a rounding error. On the other hand, personnel has to be paid no matter at what load the reactor is operating, and paying back the construction loan is also a fixed monthly fee.

This means running a nuclear reactor at 10% costs about the same as running it at 100%, so running it at anything but full capacity means you are losing out on potential income. Running it at 10% capacity means having to sell that electricity at 10x the usual rate!

Combine this with the incredibly high risks involved in such a massive long-term investment, and most reactors operate on a "strike price" principle: they negotiate a fixed electricity rate with the government, and the government has to pay (or gets to keep) the difference between the market rate and the strike price. More importantly, this applies to all the electricity the reactor could sell: if the reactor is able to generate power but the grid operator for one reason or another wants to source it somewhere else, the reactor operator still gets paid.

All this means nuclear reactors can only really be used to supply base load. In an ideal world we'd want to use them as peaker plants to make up for deficiencies left by solar and wind, but in practice we'll be turning off wind farms to let nuclear reactors run. Nuclear power might've made sense a couple of decades ago, but there just isn't a place for them left in a modern renewable-heavy grid.
by jacquesm | 2025-09-07 22:55:32+00:00
> So what would the value be of producing aluminum on the moon?

Building more rockets? Interesting detail: there isn't enough oxygen there to cause aluminum to immediately be covered with a skin of aluminum oxide. I wonder what the energy cost of an extraction process for aluminum on the moon would be. At the same time I would hate to see the moon mined, that's one piece of common property that we should maybe try to preserve unless we have no other alternative, not just for commerce.
by nkurz | 2025-09-07 22:55:53+00:00
Are you perhaps not American? Here in America, tax deductions for property donated to charity are an almost universally condoned form of white collar fraud. Instead of using the actual price you could sell for, you come up with some flimsy justification for why it's actually worth 5 to 10 times as much, and then sign something claiming this which "allows" you to subtract that amount from your income.

Everyone knows it's almost always fraud, but practically no one is ever caught, so you feel like a chump unless you participate. It's taking advantage of a system with very poor enforcement. Professional accountants may even suggest it, and at times "appraisers" will play their part for a fee. Some people even try to convince themselves that it's technically legal, but I think even they know it's a lie.
by simpaticoder | 2025-09-07 22:57:19+00:00
Yes, I also wanted to comment on the benchmark article[1], because it seems you looked at compute-bound performance rather than rps (requests per second) on simple data. Given that what you made, MicroDot, is a web server, it would make more sense to stress it rather than MicroPython and the SoC, no? That would seem to be more of the purview of the MicroPython and/or SoC devs.

1 - https://blog.miguelgrinberg.com/post/benchmarking-micropytho...
by XorNot | 2025-09-07 22:57:38+00:00
Honestly I think one of the possible premier uses of orbital (though not Martian) resources would actually be agriculture. Limiting biological contamination and maintaining sterile environments, unlike other industries, can produce a value-added product compared to the inputs.

Also there's at least a plausible mass trade off - a space borne habitat structure doesn't need to support its own weight against gravity, so you might be able to trade favorably on the launch costs (e.g. grow crops in a big inflatable dome under hydroponic conditions). Certainly it would make enforcing quarantine easier.
by iguana2000 | 2025-09-07 22:57:48+00:00
I agree with this completely; ChatGPT search is perfect for most use cases. I find it to be better than OpenAI's deep research in my experience-- it often uses 2-3x the sources, and has a more comprehensive, well-thought-out report. I'm sure there are still cases where deep research is preferable, but I haven't come across those yet.
by bitmasher9 | 2025-09-07 22:58:40+00:00
It’s interesting that it uses 4 Display Ports and not a single HDMI.

Is HDMI seen as a “gaming” feature, or is DP seen as a “workstation” interface? Ultimately HDMI is a brand that commands higher royalties than DP, so I suspect this decision was largely chosen to minimize costs. I wonder what percentage of the target audience has HDMI only displays.
by jazzyjackson | 2025-09-07 22:58:41+00:00
Huh, I didn't realize these were just released, I came across it looking for a GPU that had AV1 hardware encoding and been putting a shopping cart together for a mini-ITX xeon server for all my ffmpeg shenanigans.

I like to Buy American when I can but it's hard to find out which fabs various CPUs and GPUs are made in. I read Kingston does some RAM here and Crucial some SSDs. Maybe the silicon is fabbed here but everything I found is "assembled in Taiwan", which made me feel like I should get my dream machine sooner rather than later
by PaulHoule | 2025-09-07 22:58:50+00:00
The product I have in mind is solar sails to be delivered to the Earth-Sun L1 point to counteract climate change. A carbonaceous chondrite asteroid is rich in volatiles to make plastic films as well as metals and stones to coat them with. The pros are:

- solar sails transport themselves without using reaction mass

- you're not competing with cheap resources on Earth to be used on Earth, rather resources from Earth transported past LEO

eliminating many of the fundamental objections to scenarios where ISRU materials get transported somewhere.

Cons are:

- a good sunshade and a good solar sail are different things

- plastic + metal solar sails seem to get corroded badly over time

- if you think the turnaround time between Earth and Mars is bad, you are talking half a decade or more to round trip parts plus a 45 minute communication delay at some times; you either need to send people with all the problems that entails or have advanced autonomy and a manned simulation platform somewhere in near-Earth or cislunar space.

I've got a good picture of what parts of the "head end" that consumes asteroid materials and turns them into reasonable chemical feedstocks looks like with the exception of how to devolatize the asteroid to begin with and where to get the storage tanks to store early offgassing before the metals line comes online. (Storage tanks are an interesting question for manufacturing since the chemical factory needs plenty of them.) I also have some idea of what the "shipyard" that builds the actual sails look like. Trouble is you probably need a Drexler machine to make spare parts and also make customized parts given that you don't really know what you're up against when it comes to the "head end" (though upper pyramid parts of the chemical factory and the shipyard can be simulated close to Earth) ... and Drexler's concept for a Drexler machine doesn't work.
by shellsteady | 2025-09-07 22:58:52+00:00
SS64 is excellent—encyclopedic and battle-tested. Greppers is intentionally “copy-first”: a few opinionated, ready-to-paste incantations with flags I actually use at 1am, plus instant search and linkable queries.

I’m adding lightweight “More info” links on each card (SS64, man7, tldr) so folks can jump from the quick copy to the deep docs. If you’ve got specific SS64 pages you consider must-reads for certain commands, drop them and I’ll wire those in first.
by ChuckMcM | 2025-09-07 23:00:30+00:00
> Walkie talkies require a lot more power than smartphones have.

Yes and no. "Real" handhelds could broadcast at 5W but the Walkie Talkies that Radio Shack sold[1] were in the unlicensed band and limited to 10000 uV/m which is well within capabilities of a current cell phone power wise, as you note this would not be efficient with their antenna arrangement :-)

That said, it would be fairly trivial to use websockets to create a "PTT Walkie Talkie app" (think 2 person zoom meeting with no video)

[1] Exemplar Realistic TC-500 page 56 of this 1991 catalog: https://www.radioshackcatalogs.com/flipbook/1991_radioshack_...
by PaulHoule | 2025-09-07 23:01:22+00:00
The idea you see in O'Neill and other science fiction that iron is rare on the moon is bunk. There is Hematite

https://www.jpl.nasa.gov/news/the-moon-is-rusting-and-resear...

and Apollo astronauts brought back perfectly good Iron ore. It's true that there is lot of aluminum and titanium on the moon and a lunar economy might use that but there is enough iron that if loonies wanted to make things out of iron they could make things out of iron.
by kbrannigan | 2025-09-07 23:01:45+00:00
How do you manage the html where you can't even see the tags anymore and it's a spaghetti of utilities in the template for example:

<!-- Like his --> <div class="px-4 py-2 bg-blue-500 text-white rounded shadow-md hover:bg-blue-600">

<!-- Instead of this --> <div class="btn-primary">
by wklauss | 2025-09-07 23:01:55+00:00
I'm assuming so. Apparently it's an angle that "invites" people to use the computers, but I don't think there's anything specific about 76 degrees that makes it better than, say, 73 or 82. As long as you can see the content from an average height, it should work. Most likely they just settle on that angle because it looked good to the store team that was staging the first store, measured it, turned out to be 76 and kept it the same across stores since then for consistency.
by kragen | 2025-09-07 23:03:13+00:00
I think mostly you're talking about kunyomi. Some do have multiple onyomi (大 being the most obvious example) but it's not common, and it's not a case of "all kinds of different readings on the theory that what really counts is the semantics".

I agree with your "searching under the lamppost" theory. If I'm Japanese and I see an obscure kanji, its phonetic (component) only gives me information about its onyomi, which is almost certainly some wildly obscure loanword from late medieval Chinese that isn't even in my recognition vocabulary, much less my productive vocabulary.

It might also be true that I don't know offhand the onyomi of other characters with the same phonetic—in real life I'm a native English speaker, a second-language speaker of two or three Romance languages, and the kind of person who likes to go around thinking about obscure etymological trivia, but I was today days old when it first occurred to me that "suspicious" was probably etymologically "overseeish", cognate with "perspicuous", "spectrum", "speculum", etc. (I was right about "spicious" but wrong about "sus": it's actually "uplookish".)

So it would be totally unsurprising for even a highly literate native Japanese speaker to know the onyomi of numerous characters sharing the same phonetic, but not have that shared sound come to mind when looking at a novel character with the same phonetic, even if they can guess which part is the phonetic and that the obscure word is in fact Chinese in origin. And the YouTube video is likely edited to focus on the people who got things most entertainingly wrong.
by acdha | 2025-09-07 23:03:23+00:00
Maybe they’re less busy there but everywhere I went in California it was faster to park and walk inside if there was anyone in line ahead of you, which was almost always the case. The problem is that you’re limited by the slowest order ahead of you but the same place usually has multiple registers inside and the people who are waiting for pickup don’t block you from ordering. (Head of line blocking in real life)

This used to be worse when everyone was paying cash and you’d be stuck behind someone counting out quarters or dropping their change.
by crote | 2025-09-07 23:03:41+00:00
What makes you believe highways are nearly free? Do all those people doing highway maintenance not get paid?

Also, road wear scales with the fourth power of axle load. This means a 3-axle 30-tonne truck causes 15.000 times the wear of a 2-axle 2-tonne car. Even if highways are currently "nearly free" to maintain with a car-dominated traffic mix, moving all that rail transport into heavy trucks is going to rapidly make highway maintenance costs explode.
by metalman | 2025-09-07 23:04:09+00:00
The other problems are other gasses and processes that can release trapped CO² and CH⁴ methane, and that the extra heat in the system and H²O melting may disrupt ocean currents, now, rather than century's into the future, leading to sudden climate changes world wide, which could also trigger sudden ocean rise. They are not called tipping points for nothing, and it is established fact that those points have been reached numerous times before, and that we are pushing the climate closer, through our own actions.....we roll a 2 and a 5 and some natural fluctuation might push it all back, snake eyes and we get a civilisation level challenge to survive with our technological base intact, if we can.
by smj-edison | 2025-09-07 23:04:30+00:00
Yeah. I feel like he's still partially vindicated with things like the dragonfly topology, as a lot of problems don't nicely map onto a 2D or 3D topology (so longest distance is still the limiting factor). But the chicken approach certainly scales better, and I feel like since Cray's time there are more local-aware algorithms around.
by jacquesm | 2025-09-07 23:04:37+00:00
As long as you stay under 5%/minute or so, yes, you can with the latest generation of nuclear plants. Above that there are other alternatives that are more suitable (pumped storage, natural gas fired turbines).

And indeed, what you describe is exactly how it goes, nuclear power pretty much dictates the price of energy because it is the most expensive form. This is the big controversy of market based energy pricing to me. It should be the cheapest energy source that determines the price, not one of the most expensive ones.
by ChuckMcM | 2025-09-07 23:04:58+00:00
Ignoring the frequencies for a moment, because physics, the phone does 'wi-fi' calling just fine, a 40 'channel' (or 'room') push to talk (or VOX) voice app is pretty trivial. You get close just running the discord client on your phone. That _does_ require WiFi, but _doesn't_ require a cell tower. So modally, totally doable from a WiFi network, if your making your own WiFi network then yeah, you need a cell tower.
Show HN: hn30 – Alternative interface for the top HN stories
by yaman071 | 2025-09-07 23:05:49+00:00
Hello together, recently I created this web app that shows the top 30 Hacker News stories on a blog-style interface.

Please note that this is just a fun project to play with some vibe-coding tools. Feedback is always appreciated :)

Many greetings, Julian
by lesuorac | 2025-09-07 23:05:54+00:00
Is that premise true?

I thought most utilities weren't allowed to increase rates to fund new development and that's semi an issue for new nuclear plants because you can't add say 1 cent to everybody's bill to finance the loan until after it's been built. Which many people argue is a good thing considering America's inability to stick to a budget and inability to achieve economics of scale.

Although even if it's false. Adding more demand without a corresponding increase in supply leads to a price increase and I'd suspect most residential power demand is inelastic (hence the issue for Griddy customers during Texas's winter storms) so you're going to feel it for a different reason.
by eco | 2025-09-07 23:05:55+00:00
I've had two interactions with Wendy's AI drive-through, and the first time I was pleasantly surprised, but the second time it would not stop suggesting add-ons after every single thing I said. It was comically pushy.

A human would have pretty quickly picked up on my increasingly exasperated "no, thanks" and stopped doing it, but the AI was completely blind to my growing frustration, following the upsell directive without any thought.

It reminded me of when I worked in retail as a kid and we were required to ask if they needed any batteries at checkout, even if they were just buying batteries. I learned pretty quickly to ignore that mandate in appropriate situations (unless the manager was around).

Makes me wonder how often employees are smart enough to ignore hard rules mandated by far-off management that would hurt the company's reputation if they were actually followed rigidly. AI isn't going to have that kind of sensitivity to subtle clues in human interaction for some time, I suspect.
by iguana2000 | 2025-09-07 23:06:15+00:00
I like Markdown as is from a writing perspective. I wrote a recursive descent Markdown parser for a project recently, and I quickly realized how painfully ambiguous Markdown is. Lists (specifically nested lists) are the worst offenders.

Despite CommonMark, I find that many common Markdown parsers tend to "do it their own way" when it comes to edge cases. So I like this. This seems less ambiguous and easier to parse. But I don't think I'm going to be switching from regular Markdown anytime soon.
by brightball | 2025-09-07 23:06:47+00:00
I apparently made a bad assumption. I thought I remembered reading that nuclear plants were looking to shut down due to economics of electricity not being profitable for them anymore, which I assumed meant lack of demand.

I also remembered seeing several articles about a crypto mining operation doing exactly that.

- https://ignition-news.com/talen-energy-buys-out-a-nuclear-po...

- https://insideclimatenews.org/news/10052025/new-york-bitcoin...

- https://www.power-eng.com/nuclear/nuclear-powered-bitcoin-mi...

- https://www.texastribune.org/2024/09/12/texas-power-plant-ex...

That last one is actually just a natural gas plant though.
by tptacek | 2025-09-07 23:08:34+00:00
This paper and line of research is famously garbage. It's based both on Richard Lynn's fraudulent numbers (I have a hobby-horse on HN, and it is pointing out that no country-by-country study of "national IQ" has ever been performed --- in this one case, we'll leave "how then did Lynn come to claim that data existed?" as a question for the reader, but it's got some fun answers) and on a handwavy claimed correlation between GDP and IQ (the Koreans would like a word).

Nonetheless, once a clever-sounding claim like this hits the message board ecosystem, you never hear the end of it, and it's a favorite argument among a certain cohort of motivated Internet commenter.
by bane | 2025-09-07 23:08:37+00:00
You may want to check that your Xeon may already support hardware encoding of AV1 in the iGPU. I saved a bundle building a media server when I realized the iGPU was more than sufficient (and more efficient) than chucking a GPU in the case.

I have a service that runs continuously and reencodes any videos I have into h265 and the iGPU barely even notices it.
by miguelgrinberg | 2025-09-07 23:08:51+00:00
You got it backwards. If I were to release a benchmark for Microdot, everyone would say that it is biased!

The article you are referring to is intended to benchmark microcontrollers running MicroPython. Nothing to do with Microdot.

I'm not really sure what conclusions you expect to reach if you had a Microdot benchmark that gives you a requests per second number. I would not stop using microcontrollers if the number was low, and I wouldn't start more projects if the number was high. I don't really care. It works for the intended purpose.
by samspenc | 2025-09-07 23:09:32+00:00
Not bad with 16 GB VRAM, a bit disappointing on performance though, looking at the Blender 3D (open source) benchmarks: https://opendata.blender.org/benchmarks/query/?compute_type=...

It clocks in at 1503.4 samples per second, behind the NVidia RTX 2060 (1590.93 samples / sec, released Jan 2019), AMD Radeon RX 6750 XT (1539, May 2022), and Apple M3 Pro GPU 14 cores (1651.85, Oct 2023).

Note that this perf comparison is just ray-tracing rendering, useful for games, but might give some clarity on performance comparisons with its competition.