MurphyA/hacker-news huggingface dataset:
by uplifter | 2025-12-16 09:10:30+00:00
It's actually only about 3x.

As you intimated, the radiated heat Energy output of an object is described by the Stefan-Boltzmann Law, which is E = [Object Temp ]^4 * [Stefan-Boltzmann Constant]

However, Temp must be in units of an absolute temperature scale, typically Kelvin.

So the relative heat output of a 90C vs 20C objects will be (translating to K):

383^4 / 293^4 = 2.919x

Plugging in the constant (5.67 * 10^-8 W/(m^2*K^4)) The actual values for heat radiation energy output for objects at 90C and 20C objects is 1220 W/m^2 and 417 W/m^2

The incidence of solar flux must also be taken into account, and satellites at LEO and not in the shade will have one side bathing in 1361 W/m^2 of sunlight, which will be absorbed by the satellite with some fractional efficiency -- the article estimates 0.92 -- and that will also need to be dissipated.

The computer's waste heat needs to be shed, for reference[0] a G200 generates up to 700W, but the computer is presumably powered by the incident solar radiation hitting the satellite, so we don't need to add its energy separately, we can just model the satellite as needing to shed 1361 W/m^2 * 0.92 = 1252 W/m^2 for each square meter of its surface facing the sun.

We've already established that objects at 20C and 90C only radiate 1220 W/m^2 and 417 W/m^2, respectively, so to radiate 1252 W per square meter coming in from the sun facing side we'll need 1252/1220 = 1.026 times that area of shaded radiator maintained at a uniform 90C. If we wanted the radiator to run cooler, at 20C, we'd need 2.919x as much as at 90C, or 3.078 square meters of shaded radiator for every square meter of sun facing material.

[0] Nvidia G200 specifications: https://www.nvidia.com/en-us/data-center/h200/
by AnthonyMouse | 2025-12-16 09:10:54+00:00
There's a simple way out of it if you just want to get rid of double taxation though: Make dividends a tax deduction to the corporation. Then if the corporation makes money and doesn't issue it as dividends, they pay tax on it. If they do, the corporation doesn't, but the investor does. And then it gets taxed once one way or another but not twice.
by lesostep | 2025-12-16 09:11:41+00:00
I have been reading "Code: The Hidden Language of Computer Hardware and Software" by Charles Petzold recently. Purely for fun.

And I have to say, without the prose and lyrics it would be a read so dry, it'd rival silica gel beads.

It feels to me like in between communication and self-expression there lies a secret third thing. Not only sharing knowledge, but sharing it with joy.
by sph | 2025-12-16 09:13:30+00:00
Serendipitous, I recently wrote about my controversial interpretation of wu wei, which, in modern terms, is erasing effort by leveraging habits and other automatisms. If you have to be conscious about it, you’re doing it wrong. Nice to see Lao Tzu quoted in a post about (non-)effort.

https://news.ycombinator.com/item?id=46267098

“Governing [ourselves] is like cooking small fish.” — Lao Tzu, paraphrased.
by port11 | 2025-12-16 09:13:40+00:00
Easy counter: people with children. We vacuum the dining area daily because of the kid.

We also have building ventilation that is sadly unfiltered, so we have more dust than normal coming in.

We don't vacuum everything daily but a robot would really help us, we just won't buy an internet connected one or something that's very pricey. Our existing vacuum is crazy efficient and quiet.
by kim100 | 2025-12-16 09:13:47+00:00
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by mort96 | 2025-12-16 09:14:03+00:00
Rosetta 2 rewrites x86 instructions into ARM, but it does this on the fly for generated instructions too. When you put x86 machine code into a buffer and then jump to execute it, Rosetta 2 dynamically translates those generated instructions into arm before executing them.

At least that's what I gathered around the time it was released. It seems to hold up; JITed x86 applications work great under Rosetta 2.
by xoa | 2025-12-16 09:14:57+00:00
That's not a "flip side" just different uses. I said wide as well as tall, not just long. Truck is also useful for loose loads, including that I can put stuff (sand/gravel/soil) directly into the bed from my tractor bucket as well. And the form factor does feel better sometimes too imo. Like, just 3 days ago I moved around 1100 lbs of concrete mix for a small job, and even though I could have fit them into a van in principle for loading/unloading and cleaning of all the nasty dust it's nice just to have a truck bed. Security is whatever here, and I don't think weather is actually much of an impact either since you can easily add a basic cover if you want (and then have it out of the way when unneeded). They're useful and at least in the past could be had pretty utilitarian and cheap. Small little things too, like just plain less volume for environmental control in a no-cab or half-cab vs a full or van, always seemed a little easier/faster to heat up or cool down. But this is all really personal, and as they've turned more and more into show vehicles the value has gotten worse for sure.
by jackking1 | 2025-12-16 09:15:08+00:00
Hello HN,

I'm the maker of GetGeoVideo.

While helping a friend with their shop's Google Maps profile, I realized a weird technical issue: most modern video editors (Premiere, Resolve, Canva) strip out GPS metadata (Exif/XMP) upon export to protect privacy.

However, for Local SEO, this location data is actually a valid signal.

I built this simple tool to "hard-code" the Latitude/Longitude back into the video file headers. It's built with Next.js. It's currently an MVP. I'd love to hear your thoughts on the implementation or if you've encountered issues with video metadata retention before.

Link: https://www.getgeovideo.com/
by 1718627440 | 2025-12-16 09:15:10+00:00
Yes most are really scams, often also adults that claim for their poor small children with the same sign for decades (maybe that are eternal young children, that also are stable across different parents, because they also share that across different people sometimes) or whole families, that suddenly surround you. I mean these are also poor people, but the money you donate to them, won't go to them.

Once you meet a real poor, it's obvious. You meet them outside of reasonable business hours, they are obviously a native, ashamed to ask for help and actually like to have a conversation.
by bryanrasmussen | 2025-12-16 09:15:23+00:00
I think part of the problem for Updike where sex is concerned is his protagonists are often thinly veiled stand ins for Updike, imagining Updike having sex would have been like imagining your parents, for that generation, and then he keeps talking about it. Now it's more like your grandparents. It's like when granny tells you she got a tongue piercing because it really helps with fellatio, that stuff really increases the cringe factor.
by mort96 | 2025-12-16 09:15:49+00:00
A really fun thing is that arm and x86 have different char signedness: char is signed on x86, unsigned on arm. This has tripped me up more than a few times when I try to compile software that's only been tested on x86 for an arm machine.

Now WoW already supports Apple Silicon on macOS so most of that was already taken care of, but I'm betting there's a lot of Windows-specific code in there too.
by Theofrastus | 2025-12-16 09:16:04+00:00
I'm honestly surprised Hepburn wasn't the official standard yet. It sounds way closer to the spoken sounds, at least to my western ears.

> The council’s recommendation also adopts Hepburn spellings for し, じ and つ as shi, ji, and tsu, compared to the Kunrei spellings of si, zi and tu.

I could imagine si, zi and tu sound closer to the spoken sounds to Mandarin speakers.
by pbowyer | 2025-12-16 09:16:52+00:00
> Part of our interview process is a take-home where we ask candidates to build the fastest version of a pipeline they possibly can. People usually use C++ or Julia. All of the fastest answers are in Julia.

It would be fun if you could share a similar pipeline problem to your take-home (I know you can't share what's in your interview). I started off in scientific Python in 2003 and like noodling around with new programming languages, and it's great to have challenges like this to work through. I enjoyed the 1BRC problem in 2024.
by davedx | 2025-12-16 09:17:03+00:00
I think the point is, yes, cooling is a significant engineering challenge in space; but having easy access to abundant energy (solar) and not needing to navigate difficult politically charged permitting processes makes it worthwhile. It's a big set of trade offs, and to only focus on "cooling being very hard in space" is kind of missing the point of why these companies want to do this.

Compute is severely power-constrained everywhere except China, and space based datacenters is a way to get around that.
by ACCount37 | 2025-12-16 09:17:24+00:00
I did read it, and I found it so lacking that it baffles me to see people actually believe it to be a well-crafted argument.

Again: we can't even make a universal robot work in a sim with perfect sensor streams! If the issue was "universal robots work fine in sims, suffer in real world", then his argument would have had a leg to stand on. As is? It's a "robot AI caught lacking" problem - and ignoring the elephant in the room in favor of nitpicking at hardware isn't doing anyone a favor.

It's not like we don't know how to make sensors. Wrist-mounted cameras cover a multitude of sins, if your AI knows how to leverage them - they give you a data stream about as rich as anything a human gets from the skin - and every single motor in a robot is a force feedback sensor, giving it a rudimentary sense of touch.

Nothing stops you from getting more of that with dedicated piezos, if you want better "touchy-feely" capabilities. But do you want to? We are nowhere near being limited by "robot skin isn't good enough". We are at "if we made a perfect replica of a human hand for a robot to work with, it wouldn't allow us to do anything we can't already do". The bottleneck lies elsewhere.
by tomasz-tomczyk | 2025-12-16 09:18:02+00:00
https://www.fastpause.app/

Offline first PWA for intermittent fasting tracking and mindful eating. No account needed, no ads, no tracking, no cookies, no AI integrations. Built it for myself out of annoyance with the bloated apps (admittedly it's still bigger bundle than ideal, since I'm using React, but I think it's something like 2mb compared to 200mb similar apps on app store).

IF and mindful eating have been massive in terms of my weight loss, but it's still very much a conscious effort, and this tool has been helpful in improving my habits.
by ChrisMarshallNY | 2025-12-16 09:18:15+00:00
> I think parent commenter was talking about random people "working"[1] for charities and stopping you on the street.

I’m old enough to remember the Moonies with flowers at the airport[0].

[0] https://youtu.be/Ls_qFlF2gHw?si=znZJsjki-QLq5J1A (this actually was inspired by real behavior)
by nabla9 | 2025-12-16 09:20:01+00:00
Generating code has never been very valuable.

When you are building a reasonable software project (10k to 300k LOC), the actual generation of code is not a significant cost. If code generation were the true bottleneck, a 300k LOC project worth $50 million would take no more than 1–3 work-years to produce, even without AI. You could hire quality code monkey from India for $15 to $40/hour and get it done with less than $250,000.

The cost of management does not approach zero when you have Microsoft Exel.
by m_fayer | 2025-12-16 09:20:29+00:00
I use it to indicate my derision, and that I refuse to take this person seriously. That's the point. How the reader reacts is beside the point, to me.

Diminishing names used for delegitimization are not something reddit invented. Calling George W. Bush "dubya", Barack Obama "barry", or Richard Nixon "look it up" are all great examples of a time-honored tradition.

Hope I cleared that up for you.
by Dumbledumb | 2025-12-16 09:20:52+00:00
In Chapter D.7 they describe: "The complex reflection in water is interpreted by the network as a distant mountain, therefore the water surface is broken."

This is really interesting to me because the model would have to encode the reflection as both the depth of the reflecting surface (for texture, scattering etc) as well as the "real depth" of the reflected object. The examples in Figure 11 and 12 already look amazing.

Long tail problems indeed.
by throwaway198846 | 2025-12-16 09:21:09+00:00
What does one man living in Canada have to do with how much people in Israel love children? There have been many frauds of cancer in children. Here https://www.abc.net.au/news/2024-12-14/sa-couple-alleged-fak... is one, an Australian couple asking donations for a fake cancer. Is it reasonable to believe Australia doesn't like children because of it? No in fact it so ridiculous that even asking it is frankly stupid.
by vmitro | 2025-12-16 09:21:28+00:00
If you check out the GitHub issues on the Claude Code repo and sort by comments, you'll see that the first page is littered with the same issue you're talking about.

The answer seems to be in the vendored ink.js, at least in Claude Code's case. I actually asked Claude Code to look into its own minified and abfuscated source code and pointed it to ink.js's repo to try and deduce how and why the bug occurs; the easiest way to reproduce is to already have a few hundred to a couple of thousand lines of chat output ready and enter enough newlines that the height of the inputed text is > the height of the current terminal. But not only input box, but also other ink.js "widgets" have the same problem: everything gets redrawn over and over again (each color change of the flabbergasting... status re-triggers it, forcing terminals that don't handle OSC10/11 codes properly to rescroll from the beginning... or at least that's my interpretation).

Anyway, after a few flabbergastings of its own and my suggestion to make a wrapper around its output via xterm.js to always render a sliding fixed window of terminal_width x terminal_height and manage its scroll internally, as well as mapping the mouse wheel to scrolling / panning horizontally this virtual viewport and I had a basic, scroll-bug-free, 650 LOC node.js app that basically circumvents this issue completely, plus works in Windows Terminal and VS Code terminal. I've been using this as a drop in replacement since about a week or so and the only thing missing is a bit more draw call waiting on terminal resize since it triggers a reflow with visible scroll, but much, much faster than the annoying bug (sub 100ms).

As always, the feature creep is strong, there are som vim bindings now, and Claude, Gemini and Codex are currently working together (I have multiple terminal planes inside the app a la tmux) on implementing FIPA ACL inter agent communication via built-in MCP chat server. You can check it out at github.com/vmitro/bukowski and don't worry about the license, it's satire, it's basically free for any use (and besides, Paddle won't let me set up the $1M "Premium Luxury Enterprise License for Companies valued > $1B that Make non-open-source AI Tools"...)
by Nextgrid | 2025-12-16 09:21:48+00:00
Agreed. It was easier for me to rebuild parts of it for my own use than to self-host it. At my scale, a single DB works well as a datastore instead of Clickhouse/etc.

But then again I think this only prevents small players from "competing" by self-hosting, so the revenue loss there would be minimal either way. Large enterprises are too incompetent to even self-host a single self-contained binary, so for those the availability of source code and ease of hosting would make no difference, they would still use the SaaS.
by SXX | 2025-12-16 09:21:57+00:00
Except last few times it went so well for the countries where "intervention" happen.

Also are they in favor to replacing this dictator with another pro-Trump one?

Current US president have a weak spot for every dictator and authoritarian leader in the world: El Salvador, Russia, Hungary, etc.

Might be not the best candidate to deal with dictators...
by Someone | 2025-12-16 09:22:18+00:00
It not warm as in ”warmer than the typical living space”, but it is warmer than zero Kelvin, so heat can be extracted from it.

Doing that takes energy, that’s why it is called a heat pump. That moves heat from the water to an already warmer place, against a heat gradient, just as a water pump moves water against a gravity gradient.

If the water were warmer than your typical living space, they wouldn’t need a heat pump; a water pump to pump the water closer to where heat is needed would be sufficient.
by mnw21cam | 2025-12-16 09:22:23+00:00
No, that doesn't make sense either. For a truth booth, you're taking all the possible pairing arrangements, and dividing them into two sets. After the answer, one of those two sets is false. There is no way that this can provide more than 1 bit of information.

The match-ups can however give more information, as it isn't giving a yes/no answer.
by rcxdude | 2025-12-16 09:22:24+00:00
presumably because a) it still allows the source code to be available and used for the 'permitted purposes' (i.e. anything that's not directly competing), and b) it represents a concrete commitment to open up, not just a pinkie promise (even if they were to have a license or contract which promised it, it would not be as easy to rely on as actually having the source code published. Companies have reneged on such promises before).

And yeah, by my reading essentially people can contribute code or publish patches (with just a plain MIT license in principle), just the original and derivatives still can't be used for non-permitted purposes until the timer is up.
by impossiblefork | 2025-12-16 09:22:25+00:00
Market economy. Capitalism is a name for the bad thing-- "the accumulation of capital by some to the exclusion of others". Those who argue for a market economy usually claim that with their rule, it won't be accumulation of capital by some to the exclusion of others, with them assuring us that there will be free markets and competition.

Both actual capitalism, i.e. the bad thing, and this which can plausible be argued to be well-functioning market economies, are is often stabilized by adding elements of communism to the system-- publicly funded education, healthcare etc. This is one of the reasons why I as a vaguely socialism-influenced whatever I can reasonably be said to be see communism, i.e. a system characterized by the distribution principle "to each according to his need" as less revolutionary than the socialism distribution principle "to each according to his contribution". Communist distribution principles can coexist with ill-functioning market systems such as things which have degenerated into actual capitalism, whereas the socialist distribution principle can't.
by alias_neo | 2025-12-16 09:23:32+00:00
I'm a Linux user myself, and into hardware and self-hosting, so I have hardware coming out of my ears, but I wouldn't dare try and use a Linux box in the living room.

My wife and kids use the living room TV most, I barely use it, and only then if I'm watching with them, they use all of the streaming services so they want it to play in 4K and "just work", for which Linux is unfortunately not the solution.
by otikik | 2025-12-16 09:23:45+00:00
In case any sociopath is reading this: just go for old rich people. They are also desperate because they are alone, seeing their relevancy wane, and their deaths are closer every day. A single successful scam will represent a bigger return of your invested time and effort than, compared 10 successfully scammed children with cancer. And they might not even make a fuss if you steal some money from them, it will make them look weak and it will only represent a small percentage of their wealth.

And you are less likely to be killed by a mob, as a bonus.
by julienba | 2025-12-16 09:24:55+00:00
Great writing as usual.

I'm looking forward to having some community guidelines emerging for this kind of creation. In this case, the library works probably well enough to be used due to the extensive external suite, but in general, these LLM build projects look great until you start to use them in a real application. Now it's easy to spot them by looking at the LLM hint in the code, the LLM looking documentation, and low engagement on GitHub, but in the future, this will not be so easy.

I will be curious to see some statistics from GitHub on how many of these projects are online and how many gain community engagement.
by zozbot234 | 2025-12-16 09:25:53+00:00
I'm not sure about that. The relevant discussion here is at https://news.ycombinator.com/item?id=46194337 but from the linked Github issue it's not at all clear that a true bootloader lock is involved. It should still be possible to boot something else on device, it's just likely to require a lot of work.
by fnands | 2025-12-16 09:26:07+00:00
ArXiv doesn't give your paper any credibility either.

If you want credibility, submit it to a journal. Journals don't require that the paper be on ArXiv.

The reason I submitted our paper to ArXiv was that it was accepted at a workshop that was peer-reviewed, but non-archival, so just wanted to be able to point people at something a little easier to reference than the workshop github page.
by dgellow | 2025-12-16 09:26:26+00:00
VPNs is such a shady industry, I really don't blame companies for blocking them. 99% of people using a VPN do not understand they are giving all their traffic to a random company in a jurisdiction they can't verify, with privacy policies they didn't read, operated by people they've never heard of, based entirely on marketing claims and affiliate-driven "reviews".

There is pretty much zero regulatory oversight. The ownership structure of VPN companies is opaque, often owned by holding companies. For example Kape Technologies owns ExpressVPN, PIA, CyberGhost, etc.
by vmitro | 2025-12-16 09:26:54+00:00
I did try using tmux in VS Code's terminal, but still managed to hit this issue with very large scroll buffers. Bumping tmux's internal scrollback buffer capacity to a 50-100k would delay the issue, but it would still eventually occur. In the last few CC versions they did get rid of the old buffer after e.g. conversation compaction, so that's maybe why you don't experience the issue anymore. An Anthropic engineer had even done a PR on tmux's GitHub repo to implement the OSC10/11 shennanigans, so jt seems tmux is not immune to it at all.
by Joel_Mckay | 2025-12-16 09:27:32+00:00
Nice project, this tutorial was also helpful for a hobby volumetric data display routine. Cheers =3

"I Optimised My Game Engine Up To 12000 FPS" ( https://www.youtube.com/watch?v=40JzyaOYJeY )

https://github.com/vercidium-patreon/meshing
Show HN: Hugity – Notion-style static docs editor with GitHub/Hugo auto-deploy
by vladimiras | 2025-12-16 09:27:46+00:00
Hey all! I am excited to show off Hugity - a documentation CMS that lets you write docs in a Notion-style block editor and publish them without touching Git, YAML or CI configs.

I built Hugity to manage my own Hugo websites. I had multiple Hugo websites deployed on Github and I found editing raw markdown in VS Code frustrating. Hugity removes that friction, you can create a static docs website and start editing within a couple of clicks.

I'd love to hear your feedback about the UX, ease of use and any edge cases I may have missed!