MurphyA/hacker-news huggingface dataset:
by coffeefirst | 2026-01-22 13:51:36+00:00
I have a personal budget app and every so often I try and get the latest model to compare my data against the statements and find any discrepancies.

Every time it hallucinates visits to Starbucks.

I never go to Starbucks, it’s just a probable finding given the words in the question.

This should work. I want it to work. But until it can do this correctly all analysis capabilities should be suspect.
by goku12 | 2026-01-22 13:51:39+00:00
The 'expendable mass' is almost never a solid or liquid. It's the gaseous combustion exhaust or plasma exhaust from the satellite's thrusters. The advantage of gases is that they just expand and disperse fast enough to be too wispy to cause anything on impact.

However, there are a few systems that does use solid masses for obtaining a reaction force. A remarkable example is called a 'Yo-yo despinner' [1]. It was used in missions like Phoenix (Mars mission) and Dawn (Asteroid belt proto-planet mission). And yes, it does create space debris. But those space debris are probably somewhere is orbit around the sun. Nothing those guys are going to be too worried about.

[1] https://en.wikipedia.org/wiki/Yo-yo_de-spin
by binary132 | 2026-01-22 13:51:39+00:00
The difference is that in the past that information had to come from what people wrote and are writing about, and now it can come from a derivative of an archive of what people once wrote, upon a time. So if they just stop doing that — whether because they must, or because they no longer have any reason to, or because they are now drowned out in a massive ocean of slop, or simply because they themselves have turned into slopslaves — no new information will be generated, only derivative slop, milled from derivative slop.

I think we all understand that at this point, so I question deeply why anyone acts like they don’t.
by rswail | 2026-01-22 13:51:43+00:00
#2 is why the government, via laws, needs to establish employment rights, such as redundancy payments when someone is terminated due to their position being no longer required.

Those rights need to show up in company balance sheets as a contingent liability.

That applies when the company is acquired as well.

The employment of a company need to be either paid out to employees at net present value, or need to be transferred to the new owners as part of the sale.

In the US, with employment sponsored health insurance, it's even more important.
by iam-TJ | 2026-01-22 13:52:00+00:00
Firefox Nightly v149 has added experimental support via Settings > Firefox Labs:

Webpage Display
Media: JPEG XL
With this feature enabled, Nightly supports the JPEG XL (JXL) format. This is an enhanced image file format that supports lossless transition from traditional JPEG files. See bug 1539075 for more details.
by adrian_b | 2026-01-22 13:52:12+00:00
Most 512-bit instructions are not split into two 256-bit instructions, neither on Zen 4, nor on laptop Zen 5. This is a myth caused by a very poor choice of words of the AMD CEO at the initial Zen 4 presentation.

For most 512-bit instructions that operate on the vector registers, both Zen 4 and all the Intel CPUs supporting AVX-512 have an identical throughput: two 512-bit instructions per clock cycle.

There are only a few instructions where Zen 4 is inferior to the most expensive of the Intel server/workstation CPUs, but those are important instructions for some applications.

The Intel CPUs have a double throughput for the transfers with the L1 cache memory. Zen 4 can do only one 512-bit load per cycle plus one 512-bit store every other cycle. The Intel CPUs with AVX-512 support and Zen 5 (desktop/Halo) can do two 512-bit loads plus one 512-bit store per cycle.

The other difference is that the most expensive Intel CPUs (typically Gold/Platinum Xeons) have a second floating-point multiplier, which is missing on Zen 4 and on the cheaper Intel SKUs. Thus Zen 4 can do one fused multiply-add (or FMUL) plus one FP addition per cycle, while the most expensive Intel CPUs can do two FMA or FMUL per cycle.

On the other hand, server/desktop/Halo Zen 5 has a double throughput for most 512-bit instructions in comparison with any Intel CPU. Presumably the future Intel Diamond Rapids server CPU will match the throughput of Zen 5 and Zen 6, i.e. of four 512-bit instructions per clock cycle.

On Zen 4, using AVX-512 provides very significant speedups in most cases over AVX2, despite the fact that the same execution resources are used. This proves that there still are cases when the ISA matters a lot.
by p_ing | 2026-01-22 13:52:18+00:00
You didn't read the article, did you? SIP isn't the only alteration. And we don't know all of the changes required due to the waivers.

> if you want your installation of macOS 15.0 to pass the UNIX® 03 certification test suites, you need to disable System Integrity Protection, enable the root account, enable core file generation, disable timeout coalescing, mount any APFS partitions with the strictatime option, format your APFS partitions case-sensitive (by default, APFS is case-insensitive, so you’ll need to reinstall), disable Spotlight, copy the binaries uucp, uuname, uustat, and uux from /usr/bin to /usr/local/bin and the binaries uucico and uuxqt from /usr/sbin to /usr/local/bin, set the setuid bit on all of these binaries, add /usr/local/bin to your PATH before /usr/bin and /usr/sbin, enable the uucp service, and handle the mystery issues listed in the four Temporary Waivers.
Show HN: Yupno – No-login RSVP tool with REST API and webhooks
by a_diplomat | 2026-01-22 13:52:45+00:00
Hi HN,

I got tired of having to register and having friends having to register accounts just for accepting a party or dinner invitation (also plenty of friends have left social media) so I coded a minimal, no-login event tool: https://yupno.com

Dev-friendly stuff: Full REST API, async webhooks for RSVPs with Slack/Discord-adapted payloads. Auto-generates Ical, JSCalendar and JSON-LD. No auth, uses admin/user tokens in url. Should be possible connect to other stuff in fun ways.

Free to use, no ads, no tracking. I just wanted a simple tool that respects my time and privacy. Might figure out some way to monetize it if it gets traction, perhaps Stripe integration for tickets to events or something.

Docs/API details: https://yupno.io/docs.html
by boxed | 2026-01-22 13:53:17+00:00
Of course it requires non-local reasoning. You either get a function back or a value back depending on if you've passed all the arguments. With normal function calling in C-family languages you know that a function body is called when you do `foo(1, 2, 3)` or you get a compilation error or something. In a currying language you just get a new function back.
by Cthulhu_ | 2026-01-22 13:53:33+00:00
Is money the issue for this project, or finding the right people?

Or another point of view, if you put a lot of money into it, it becomes a commercial endeavour - would it still be for a good cause?

More armchair internet commenter devil's advocate discussion starters than any opinions of mine to be honest. But, there's a lot of projects that would benefit from no-strings-attached donations.
by VladVladikoff | 2026-01-22 13:53:48+00:00
I still have mixed emotions about 3D printing. I do love the idea of being able to print a part when I need it for something. But I do hate myself at the same time for creating more plastic junk. PLA is not really getting recycled, when it fails someone throws it in the trash and it goes to a landfill. Maybe some really diehard enthusiasts are ensuring all their failed prints and broken parts get properly chemically recycled, but I bet most don’t bother and just bin it.
by mosselman | 2026-01-22 13:53:52+00:00
"just a whole extra framework"

"if you really wanna have dope components such as shad whatever - then of course you can always opt for Rails + Inertia React + Component library"

I don't think the target audience of RailsUI are people who want to use a front-end javascript framework.

A more suitable alternative is:
https://railsblocks.com/
by enginyoyen | 2026-01-22 13:53:59+00:00
Hi HN,

I built TrustPath.io after seeing the same problem pattern across multiple projects: freemium abuse and lack of proper account protection.

The usual approach is to start by blocking disposable emails, which appears to be an easy win, but in reality you need more signals than just disposable domains. It's still possible to create accounts using real Gmail accounts created in bulk.

Disposable email detection catches some of them. The others that looked "legitimate" on the surface slipped through the cracks.

-------------------------

TrustPath.io combines the signals that actually matter:

• IP intelligence (datacenter IPs, proxies, impossible travel)

• Behavioral patterns (signup velocity, usage anomalies)

• Email intelligence (not just disposable—also bulk-created, suspicious domains)

• Device fingerprinting (same device = multi-accounting)

We also offer a dashboard where you can actually see what's going on in your system, giving observability—meaning every request you make creates an overall image of your system.

-------------------------

What it does:

One API call at signup/login returns a risk score (0-100) plus breakdown of what triggered it, with a state approve, review, or decline.

Current use cases:

• SaaS platforms stopping trial abuse

• Referral programs preventing bonus farming

• Marketplaces blocking multi-accounting

• Anyone tired of the same user creating n number of accounts

-------------------------

What I'd love feedback on:

1. What account abuse are you seeing? (curious if others face the same patterns)

2. Would you rather build this in-house or use an API?

3. Any concerns about device fingerprinting from a privacy/UX perspective?

-------------------------

Happy to go deep on the technical implementation if anyone's interested.
by wesgarrison | 2026-01-22 13:54:10+00:00
They are USB on the machines we use. That said, that’s not a concern to me.

The machine also prints a paper tally that goes with it to verify. We used sealed bags so they can’t be messed with in transit. They tabulate the results and compare it to the total from the tape. Personally, I wish there was a hash of the results that would make it simple to say “yep, that’s the same” but practically that’s not necessary.

A second copy of the receipt goes back separately with the paper ballots. Same sealing and chain of custody handoffs.

I like the electronic ballot marking device. I can understand the argument that they’re not worth the cost, though.
by BugsJustFindMe | 2026-01-22 13:54:10+00:00
> This is software support, it is a job, it should be paid.

It is paid, just not in money. It seems like you lack awareness of the other forms of capital that exist, because your framing implicitly insists that financial capital is the only form of capital. But there are also social and cultural capital, which you have missed. It's the reason why even the most permissive licenses insist on preserving attribution.

People do things literally all the time to increase their social capital because feeling like an important part of a community makes people feel good.

Stallman makes the same mistake in his foundational writings, so you're not alone in this. Maybe because he's never understood people very well? Unclear/unknown.
by lowdanie | 2026-01-22 13:54:22+00:00
In a nutshell, the only approximation in Hartree Fock is the assumption that the electronic wave function has a very specific form. Namely, that it is a Slater determinant of orbitals, and that each orbital is a linear combination of atomic orbitals from a fixed basis set.
The linear coefficients of the orbitals are then solved for via the (exact) variational method.

Of course, the true wave function is generally not a Slater determinant. In particular, electrons in a Slater determinant with different spins are uncorrelated.

The standard approach to resolving this is density functional theory. In that model, the main approximation is the choice of an “exchange correlation functional” which approximates the electron exchange and correlation energy. The choice of a functional is unfortunately a dark art in the sense that they can only be evaluated empirically rather than from first principles.

The classic reference for Hartree Fock is Modern Quantum Chemistry by Szabo and Ostland:
https://books.google.com/books/about/Modern_Quantum_Chemistr...

It is very well written and I highly recommend it.

I also wrote up some notes here: https://www.daniellowengrub.com/blog/2025/07/26/scf
by lazide | 2026-01-22 13:54:44+00:00
It will often literally just make up the documentation.

If you ask for a link, it may hallucinate the link.

And unlike a search engine where someone had to previously think of, and then make some page with the fake content on it, it will happily make it up on the fly so you'll end up with a new/unique bit of fake documentation/url!

At that point, you would have been way better off just... using a search engine?
by degamad | 2026-01-22 13:54:49+00:00
No, the booths where you fill out your ballot are on one side of the room, and the ballot boxes are on the other, supervised by an election officer, and near the exit. You:

- collect blank ballots (usually 2 pieces of paper, one for the House, one for the Senate) at the entry,

- walk over to the booth,

- fill out your ballot in secret at the booth (taking as long as you like),

- fold the ballots,

- walk over to the ballot boxes,

- drop the folded ballots into the corresponding box (House ballot in the House box and Senate ballot in the Senate box),

- then leave.

As no-one sees what you write at the booth, you can vote legally, draw pictures on your ballot, write obscenities, write nothing, or a combination.
by elzbardico | 2026-01-22 13:55:24+00:00
At this time laptops still could have memory upgrades, and memory was pretty cheap compared to today. The first thing I did when I bought a new laptop was buying two 8GB SoDIMMs, it was way cheaper than ordering the upgrade from factory.

The thing is, memory in personal computer have plateaued for quite some time. 16GB was not uncommon in 2010. Things are not like the crazy 90s and early 2000s where PC configuration become obsolete in less than two years.
by boleary-gl | 2026-01-22 13:55:43+00:00
Kilo DevRel here. We built the Kilo CLI because other CLI tools either lock you into one AI coding model, or make you jump through hoops to switch. We wanted agentic coding in the terminal with the same flexibility you'd get from the Kilo IDE setup.

What makes it different:

- 500+ models (including everyone’s favorites from Claude, Gemini, OpenAI). Switch anytime
- 5 specialized modes: Code, Ask, Debug, Architect, and Orchestrator (breaks down tasks and delegates to the others)
- Parallel agents: spin up multiple instances on the same repo, each on its own branch
- Session continuity: start in CLI, pick up in Kilo VS Code or cloud. Context travels with you

--parallel --auto for running multiple autonomous agents simultaneously is a favorite. It’s the same engine as our IDE extensions, not a stripped-down version.

Install: npm install -g @kilocode/cli

Also: open source, and contributions are welcome. Would love feedback on what's missing from your terminal workflow.
by throwaway2037 | 2026-01-22 13:55:58+00:00
Generally, I agree with your post. About "keep them out of the fridge": I thought this is mostly due to wash or not-wash the eggs before packing. I think washing removes a thin layer that makes the eggs last longer, but can be visually less appealing. Please correct me if you know better! Japan also vaccinates heavily for Salmonella, and they eat plenty of raw eggs in their cuisine.
by dapperdrake | 2026-01-22 13:56:25+00:00
Look at Stephen Few's website and books.

http://perceptualedge.com/examples.php

There is also ggplot, ggplot2 and the Grammar of Graphics by Leland Wilkinson. Sadly, Algebra is so incompatible with Geometry that I found the book beautiful but useless for my problem domains after buying and reading and pondering it.
by password54321 | 2026-01-22 13:56:39+00:00
Most web design books are essentially going to tell you to put a navigation bar on top or on the side, with a big call to action button in the centre while laying everything out on a grid (hence why most websites now looks the same). Logo design books now are always going to tell you take inspiration from the Twitter or Nike logo e.g. something that is simple but easily recognisable from afar (everything is now a swirl or a a single polygon). The colour theory stuff is half pseudo-science and mostly going to tell you to pick from a small colour palette with a consistent primary/secondary colour while keeping in mind that colours are perceived differently in different cultures. The only one that I liked was Refactoring UI because it demonstrated how small changes can add up to make something that looks amateur look professional. But you can probably learn more just by investigating things you like yourself and implementing them.
by mysterydip | 2026-01-22 13:56:59+00:00
In the past I've mostly printed intersting/amusing things from places like thingiverse. But this year I had a project I needed an enclosure for, and instead of using something off the shelf I decided to print my own.

Being able to design, print, test, change, print again really made the potential of 3D printing shine for me. I must have went through a couple dozen iterations as the hardware choices solidified and I saw what worked and what didn't (like "oh, I actually can't reach that screw once these two pieces are put together"). It was a really rewarding experience and I'm looking forward to the next project.
by EGreg | 2026-01-22 13:57:14+00:00
Oh man! Microsoft was the #1 company with this problem for over 25 years and they still do it?

Word and Excel “MACROS” used to be THE main vector for kiddie viruses. Come on M$ … billions of dollars and you’re still loading up non-interactive code execution in all your documents that people expect to be POD (Plain Old Data)?

https://support.microsoft.com/en-us/office/protect-yourself-...

Is it so much to ask for your software to AT LEAST warn peole when it’s about to take a destructive action, and keep asking until the user allows that class of thing non-interactivlely ONLY FOR THAT SIGNED SOFTWARE?
by lmz | 2026-01-22 13:57:23+00:00
It's not even clear that they were the ones suggesting inclusion. They're just saying their library now supports the new thing.

https://pdfa.org/brotli-compression-coming-to-pdf/

> As of March 2025, the current development version of MuPDF now supports reading PDF files with Brotli compression. The source is available from github.com/ArtifexSoftware/mupdf, and will be included as an experimental feature in the upcoming 1.26.0 release.

> Similarly, the latest development version of Ghostscript can now read PDF files with Brotli compression. File creation functionality is underway. The next official Ghostscript release is scheduled for August this year, but the source is available now from github.com/ArtifexSoftware/Ghostpdl.
Show HN: AbleMouse Beyond Switch – PC control for users with total paralysis
by aradzhabov | 2026-01-22 13:57:30+00:00
An open-source solution designed for individuals with extreme physical limitations, including total paralysis. When traditional assistive tech fails, this works by interpreting a single micro-movement—like slightly opening the mouth—into full PC control. Features a core system that receives micro-signals from any sensor to navigate a customizable hierarchical menu. The system enables voice commands for non-verbal users and bypasses OS language barriers. Ready to restore digital independence.
by gambiting | 2026-01-22 13:57:51+00:00
...what? That literally makes no sense. "Europe" is not a country. "Europe" does not dream of being an empire, because it has no cohesive governing body or even identity as a whole - maybe France or UK dream of being empires but collectively? Does Slovakia or Portugal dream of being empires?

That is such a naively simplistic view of how the world works it reads like it's straight from a Daily Mail or Fox News headline, which always say "Europe does X" - like, who is Europe? Are they in the room with us now?

"Europe is learning" should say - (some) European states are learning, and they are learning that you cannot negotiate with convicted criminals and fascists - they will betray you on a whim because they do not answer to anyone, not even themselves.
by ACS_Solver | 2026-01-22 13:58:01+00:00
Kryptos K4 seems to me like a potential candidate for AI systems to solve if they're capable of actual innovation. So far I find LLMs to be useful tools if carefully guided, but more like an IDE's refactoring feature on steroids than an actual thinking system.

LLMs know (as in have training data) everything about Kryptos. The first three messages, how they were solved including failed attempts, years of Usenet / forum messages and papers about K4, the official clues, it knows about the World Clock in Berlin, including things published in German, it can certainly write Python scripts that would replicate any viable pen-and-paper technique in milliseconds, and so on.

Yet as far as I know (though I don't actively follow K4 work), LLMs haven't produced any ideas or code useful to solving K4, let alone a solution.
Show HN: Captain's Deck – A dual-pane file manager for macOS
by mmsols | 2026-01-22 13:58:30+00:00
Hey HN,

I built Captain's Deck because I missed Norton Commander-style file management on macOS.

Key features:
- Dual-pane interface
- Vim-style navigation (hjkl, gg, G, /)
- Built-in terminal with path sync
- Git integration (status badges, stage/unstage)
- Remote connections (SFTP, FTP, S3, WebDAV, cloud drives)
- Archive browsing (ZIP, RAR, 7z as folders)
- Retro themes (Norton Commander blue + CRT effects)

It's a native Swift/AppKit app. One-time $19.99 purchase, 14-day trial.

I'd love feedback on what would make this useful for your workflow.

https://captains-deck.com
by al_borland | 2026-01-22 13:58:49+00:00
I was gifted this book my a CIO when in college. She had a dozen copies in her office to hand out to various people.

It took me a few tries to get up the will to actually read it. It was years ago, so I don’t remember a lot of details. My main take away was to make controls logical for the thing being controlled. “Norman doors” are the big one, but I often think about it while I’m in my car trying to do something on a touch screen, when all I want is a knob, button, or switch.

In the modern era of web design I think it would point to these websites (like most of Apple’s product pages), that make users scroll through indulgent animations, just to get to the content. It may be cool the first time, but is very annoying for repeat visits, and it feels like it breaks my scrolling expectations. Not to mention all the horizontal scrolling thrown in there, which becomes a headache for those without the hardware to do it easily, and confusing to change scroll direction all the time.