MurphyA/hacker-news huggingface dataset:
by gnramires | 2025-05-17 19:42:12+00:00
That definitely seems like it could be universal :)

Yes, and I think the question of stability is very interesting, specially as those are continuous systems with non-local effects. To prove universality, you're probably going to need to prove that small perturbations that might be inevitable (unless values decay in finite distances) maintain a given behavior, with "regenerative" properties: analogous to fan-in/fan-out in electronic gates (basically, iterated gate applications need to have points or basins of attraction, usually 0 or 1, such that if your system gets noisy, this noise is eventually eliminated and the signal "regenerated"). If you can build a NAND gate within a kind of cell, and show that it's stable w.r.t perturbations, and has regenerative output, I think that would be enough (in that case not only universality is achieved in a technical sense, but in a very robust sense as well) to build a TM.

The spaces of parameters that achieve Turing completeness would be really cool to see as well.

Preferably, your cell should output a "packet", which should permit, given a synchronization source, that this packet travel toward other cells but also avoid other packets traveling in say an orthogonal direction, that is, you should allow wire crossings. If your system doesn't allow wire crossings, I suspect you may be able to prove Turing completeness is impossible, at least I believe you can prove (left as an exercise :) ) that realizing some circuits may require crossings. Alternatively, you can build gates/cells with multiple inputs and multiple outputs, such that effectively one of the gates allows for information to cross over.

Note: I believe this difficulty of building complex systems in 2 dimensions might partially explain why we live in 3 dimensions! It's just very hard for a complex life form to evolve in a 2D system because of, among other things, this connectivity difficulty (in 3D you can basically just route wires/tubes anywhere :) ), this is assuming some form of a generalized Copernican Principle (that we exist probabilistically in possible universes). 4 dimensions and higher may produce similar connectivity difficulties, but in terms of too much connectivity instead of too little. I presume we can explain to a significant understand the whys of why physics is it the way is in our universe using this principle (which appears to me to be a generalization of the Anthropic principle).
by Retr0id | 2025-05-17 19:42:41+00:00
I suspect they're hallucinated. As a random spot check: https://new.knife.day/item/spyderco-paramilitary-2

"The Spyderco Paramilitary 2 is a tactical knife with a 3.44 inch blade. The knife is made in USA of CPM S35VN steel."

It's a real knife, and the blade length checks out (to two significant figures), but the manufacturer spec sheet says S45VN steel. Also the actual name is "Para Military® 2".

https://www.spyderco.com/catalog/details/C81GS2/2090
by quantadev | 2025-05-17 19:43:37+00:00
Some "infinities" of singularity are at the center sure, but all the maximal Relativistic effects are at the EH surface. It's even proven that the entropy (informational content roughly) is equal to the EH area divided by the number of planc-length square areas, as the amount of quantum arrangements of information that are allowed "inside". That is a HUGE hint everything's remaining on the surface.

For example, when you see a clock fall into a BH you see it stop ticking at the EH, not at the center. It's a common misconception that everything about them is at the center, but everything interesting is at the surface.
by mike_hearn | 2025-05-17 19:44:10+00:00
Sortition might not help. The problems include:

• Skiving. People don't want to be torn from their lives and careers to do something else against their will. In the jury system this shows up as people deliberately trying to be excluded, which isn't that hard.

• Length of time required. Jury trials last a few days or weeks, maybe months in really extreme cases. It often takes new ministers months to merely get up to speed on their brief, let alone work out what should be done and how to actually pass legislation. Everyone would spend 90% of their time just working out how the process works, then they'd leave and it'd start all over again.

• Ease of manipulating the legislators. Combine ignorance, apathy and a strong resistance to even being there at all (they're being forced!), and what you get is people finding ways to outsource the work as much as possible. If you think lobbyists writing laws is a problem with professional politicians, that'd be nothing compared to unprofessional ones who even in the absolute best case will have no idea what they're doing and need all the help they can get. If you try and block external lobbyists, all you do is fully empower internal lobbyists (e.g. civil servants with an agenda).

Sortition could maybe work in a very libertarian state in which there are very few laws or welfare programs, and so the average group of legislators don't need to do much and can master the process quickly. In the past politicians were often part time, in some parts of the world this still happens at the local level. But if you want something at the scale of the US government it seems completely unworkable. Even with hundreds of full time professional legislators they still outsource huge amounts of lawmaking to executive agencies. Sortition would just set that to be 100% and there'd be no accountability.
by margalabargala | 2025-05-17 19:44:38+00:00
Fair.

Back to your original point, I would argue plenty of tourism exists for both regimes, focused on what the regime was best known for.

The Romans were known for being an advanced for their time civilization that pioneered many innovations that are still in use today in similar forms. While other things like their tortures existed, it's not how they exist in our cultural consciousness.

People tour Nazi sites that are representative of their place in our cultural consciousness as well, e.g. Auschwitz. Things like the Autobahn are not toured in the same way by WWII aficionados, because that's not their place in the cultural consciousness.

The reality on the ground of "who was worse" is not really relevant, the overwhelming force is how they are remembered.
by weird_trousers | 2025-05-17 19:45:21+00:00
Cool to see OCaml (and not 'Ocaml', please) got some tractions.

OCaml is a cool language (maybe the best one for functional programming imho), has a great build system and package manager (Dune)... it just miss some "killer apps" running on OCaml to let understand hype-people (managers) to take a look at it and try it at their job places.
by PaulRobinson | 2025-05-17 19:45:25+00:00
1. Go and read the editorial guidelines.

2. Find the same ones for your favourite news source.

3. Ask if the balance is reasonable for a British broadcaster, paid for by British people, to address stories of interest of British interest from a British perspective by applying those editorial guidelines.

4. Go and explore the times that the BBC has actively investigated and reported on exclusives critical of British foreign and domestic policy - there's more examples than you'd find at any other broadcaster in the World, I think.

If you'd like to point out examples of where the editorial guidelines are poor, or weren't applied in a particular scenario, or even an example of perceived bias that is entirely unbalanced, I'm happy to hear it. More often than not people complaining of bias are complaining that it reported something they disagreed with, but like I say, both the far left and the far right hate the BBC, anarchists hate it, authoritarians hate it - if they're annoying everyone apart from the more sensible majority that want to see all sides of a story, they're probably doing something very right.
by input_sh | 2025-05-17 19:45:29+00:00
I think it's a pretty stupid question to begin with as it ignores visas. Also, too many different gauge widths means far too many train changes to be considered a part of the same journey.

If your definition includes a visa-free journey with no need to change trains, then the theretical limit is pretty easy to figure out: Minsk - Vladivostok. The second longest theoretical journey would probably be northern British Colombia down to Mexico / Guatemala border.
by GTCHO | 2025-05-17 19:46:06+00:00
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by transitorykris | 2025-05-17 19:46:17+00:00
MercuryOS jumped out at me too, digging around the site I really started to imagine using it. It does not appear to have gone beyond the design (which was where the creators intended to stop it seems). It's a re-imagining of HCI than an OS as a whole. It caught a fair bit of unfair flack previously imo: https://news.ycombinator.com/item?id=35777804
by numpad0 | 2025-05-17 19:47:32+00:00
They've gotten NFC VISA payWave at least comparably fast as FeliCa by skipping a few checks. It's still not as fast as genuine Suica - look how hard these men force their own fist to stay on the reader like their pay depends on it[1], but Suica advantages are slowly becoming a tougher sell with population and economy going a long way down.

1: A 2021 VISA touch-to-ride demo https://www.youtube.com/watch?v=To5S615UQtU
by la64710 | 2025-05-17 19:49:02+00:00
I think you hit the crux of the issue . While coding jobs will still be around they will probably employ top 1% of the people in the intelligence spectrum whereas before it would have employed say 30% of this group of people (made up numbers). Yet those people still need a decent annual income to survive in USA and they don’t have alternative skillsets or assets. So yes you may be right in that we are in the early phase of the bell curve with things progressively going to look darker for more and more people.
by lawnchair | 2025-05-17 19:49:06+00:00
Great to see OCaml getting some attention. We wrote our product in OCaml at my startup, Terrateam[0]. It has helped us build and ship a complex system with a very small team.

We ended up building a lot in OCaml. Our own build system, a lightweight concurrency runtime, and a Postgres driver, because we wanted full control over how everything works.

[0] https://github.com/terrateamio/terrateam
by hisham_hm | 2025-05-17 19:49:19+00:00
"Transpiler" is a common term for source-to-source compilers in the industry, but compiler is the more general term (i.e. a transpiler is a kind of compiler). In academia, the term "transpiler" is somewhat sneered at. A source-to-source compiler is still a compiler, because conceptually compiling into assembly is also technically source-to-source.
by jandrewrogers | 2025-05-17 19:49:51+00:00
The rapidhash algorithm is notable for being general purpose, with unusually low latency relative to its quality metrics.

Classic algorithms are severely broken for many trivial key sets and therefore are not general purpose. However, they may work great for your specific key set and this is something you can test for if you know the properties of your key set. The point of a general purpose hash function is that you can use it with unknown or unknowable key distributions with some degree of assurance that the distribution of hashes is unlikely to be biased in some way.

Something else to keep in mind is that those old algorithms are really slow. Modern algorithms explicitly take advantage of the parallelism and width of modern CPU cores. Larger internal hash state allows higher throughput and quality but also increases latency and I-cache footprint, so there is a tension in the design.

As I mentioned in another post, if the properties of your key set are well-defined and bounded, it can often make sense to design a hash function that is only high-performance and high-quality for that key set. Most people don’t know how to do this effectively so they mostly stick with general-purpose hash functions, one latency-optimized and one throughput-optimized.
by YZF | 2025-05-17 19:49:51+00:00
Canadian employees visiting the united states is usually not a situation requiring a TN. That said most of the time this happens the visitors are indeed breaking the law. So one could argue that the current administration does believe in following the law.

One of the situations when I had a TN was exactly like that. Canadian employees of a US startup needed to get a TN so they're not hassled at the border.

Many administrations ago. Before the first Trump presidency.

Either way getting your Canadian employees TN status is easy and is probably a better solution.
by justsomehnguy | 2025-05-17 19:50:05+00:00
> unlocking the device and nothing happening. there is no notification, and nothing in the notification bar

Except there is a notification for the USB mode.

https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2F...

And it is this way since 2+ for sure.

> in every app. it's a feature of the system, just like you can swipe from the side of the screen in almost every app on iOS. why on earth would I have said it if it was just in one app? again, this should have been very obvious to you

No, it's not obvious for me. None of my Android phones behaved so and I don't think I can remember such behaviour on any other I saw or used.

> I literally chose to buy an Android phone when I could have bought an iPhone, and somehow I'm biased?

Yes, you are. You somehow equate your personal experience with the one unknown model and make to all Android phones ever. And despite people telling you what you are clearly missing something - you stubbornly insist it's not you but the Android.

> you're 2 versions of Android behind what I have and you expect to speak as an authority on this?

And my daily driver is Moto G54, Android 14. Any other pathetic excuses?
by mrweasel | 2025-05-17 19:50:10+00:00
For me, personally, heavy use of the => operator (which happens to coinside with my main complaint of a lot JavaScript code and anonymous functions). You can avoid it, but is pretty standard.

Very specifically I also looking into JWT authentication in ASP.NET Core and found the whole thing really tricky to wrap my head around. That's more of a library, but I think many of the usage examples ends up being a bunch of spaghetti code.
by admtrv | 2025-05-17 19:50:11+00:00
Pretty cool! I honestly hadn’t seen display3d before, not when I was researching similar projects, nor while working on my own and debugging issues. Just checked it out now, and as someone currently learning Rust, I really liked it and definitely starred the repo. Love the Unicode rendering idea.

Textual looks fun too, feels very much like a Python equivalent of ratatui from Rust, I also has a project with this library. Definitely something I might explore for building overlays or adding interactive controls around the core renderer, though curses also can render basic buttons and menus.

As for FSV, yeah, that’s more in the OpenGL/GPU territory. My goal was to stay purely terminal-based. By the way, I wasn’t sure if you brought up FSV just for the retro-3D vibe comparison, or if you had something more specific in mind? Curious what you meant there
by lurking_swe | 2025-05-17 19:51:12+00:00
It’s funny to me how these people don’t think “maybe i should sell it if i don’t use it. So i get some money back and someone else gets the opportunity to enjoy it”.

I don’t get it. I guess complaining on the internet is more fun? People are weird.

For example there is demand on ebay - 14 bids for this USED vision pro, will sell for at least $2.2k. https://ebay.us/m/umMGwF

Letting it collect dust in a drawer is a choice. I also consider it ewaste if if the device isn’t being put to good use.
by kotaKat | 2025-05-17 19:51:20+00:00
The door being blocked additionally by a food cart may be an additional security step. Some airlines treat having the flight crew needing a bathroom break very seriously when the cockpit has to be opened in flight (ex sending passengers back to seats if they try to go to the front bathrooms, closing curtains, lead staff up front on standby, etc).

Here's the cockpit locking system on Airbuses, for what it's worth as well: https://www.youtube.com/watch?v=ROIH3KCEIvs

There is a button that sounds a 'request' chime, and a code that when entered starts a timer and alarm that once stops, releases the door momentarily for an emergency entry. The crew inside can still disable that unlock, if they are conscious (and this is some kind of attempted hijacking with knowledge of the code).
by Theodores | 2025-05-17 19:51:35+00:00
We have gone backwards in this regard, there was a time when you could get the train from the UK to Egypt or even to Iraq, with railway posters advertising such services.

Check out retours.eu for some classy posters from a time when railways ruled along with ocean liners. You really could get to places that we have subsequently deemed to be too war-torn for travel. Even in America you had 'broadway' tracks (four tracks, for slow and fast services in each direction) racing across the country, with competing operators, each with their own 'broadway' tracks.

Interestingly, in the UK, train services have not got quicker, necessarily. There were also the Beeching cuts that decimated the amount of services.
How to get even a "quasi" objective view of quality OAIdeepresearch vs. Gemini
by akkoceir | 2025-05-17 19:53:11+00:00
Why is DeepResearch from Google this much better than from OpenAI – we are in 2025 May and DR OAI "Agent" cant even get its own model correct.. It’s just a bunch of inaccuracies and irrelevance that are similar to example below why i qualitatively think gemini is going to win out.. I guess?? Unless below gap in quality is acceptable.. I dont think it is. The only main tool i guess it has is web search and it hasn’t figured out how to prioritize recent news when it comes to doing research …. Factoring and favoring more recent news and latest blogs is kind of a basic requirement for deep research for a ton of use cases unless im stupid .. compare snippets from research from both products.. Do we have resources where the latest versions are tested across a range of broadly useful cases and do side by side comparison to see which one is better - or some more quntiative benchmark that can somehow capture nuance of research output.

https://i.imgur.com/9mPbURP.png

https://i.imgur.com/miwfF6H.png

https://i.imgur.com/8W9qwo8.png

https://i.imgur.com/kD02C4N.png
by rovr138 | 2025-05-17 19:56:19+00:00
eso es!

Seeing the title I was a bit bummed seeing radio telescopes and what happened with the radio telescope there. Clicking the link, I was really happy to see upr.edu domain and then the title, 'PHL @ UPR Arecibo'.

I like the legacy that the radio telescope has left behind and I'm very happy to see others there working with radio.
by whalesalad | 2025-05-17 19:56:39+00:00
Tangent: I had a decent benchmade griptilian folding knife for the last 10 or so years. Wasn’t the sharpest knife but I loved the form factor, grip, etc.

I left it on the bed cover of my truck the other day while unboxing some towing equipment in a parking lot and took off accidentally.

Looked at Amazon to replace it and they’re going for $200+ now. Is this just Amazon tax? Tarrifs? Something else? No way in hell I paid that for it initially. It was probably $50! It’s listed at $160 on their website right now.

Why?!?! It’s a simple plastic body and a small piece of steel. Make this make sense.
by cosmic_cheese | 2025-05-17 19:58:12+00:00
How is it wire fraud?

While it’s ultimately up to the person doing the hackintoshing and thus an “honor system” thing, all the guides are pretty explicit about how you should generate serial numbers that are syntactically valid but cannot belong to real machines, for example that of a 12” Macbook manufactured in 2020 in Cork, Ireland (no such machine exists, as they were discontinued in 2019 and manufactured in China). That way there’s a small chance of collision with other hackintoshers, but no threat of accidentally using the serial of someone’s real Mac.
by johnisgood | 2025-05-17 19:59:08+00:00
Well, I used 0.5 as a convenient and intuitive midpoint of the 0-1 luminance range, but this of course is a simplification and doesn't align with human perception (edit: it is aligned), it was more of an example if anything.

You are right, 0.18 is indeed perceptually closer to "middle gray" because the eye responds more sensitively to darker tones, so yeah, using a threshold closer to 0.18 makes more sense if we want to identify whether a color "feels" light or dark.

That said, 0.5 is a mathematical midpoint, but as I said, not aligned with how humans perceive brightness (edit: it is aligned).

Ultimately one could use 0.18-0.3 as threshold.
Show HN: Cloud Coding with Claude (better than CodeX)
by sean_ | 2025-05-17 20:02:11+00:00
This is a project I've been working on to build a way to copy my workflow in Claude Code to an application with my workflows preset.

I also wanted it to run in the cloud for long running tasks and so i can query it from my phone.

The site gives everyone free credits with no credit card needed and in my mind is better than Codex-1 because it gives you complete control over claude code, but mostly it's because claude code is just better than codex.

I'd like for you guys to be the judge though!
by Papazsazsa | 2025-05-17 20:03:06+00:00
Curation is the uncrossable moat for AGI/ASI as an inherently human-to-human behavior.

Trends, tastes, and language evolve in real time, driven by social signaling, novelty bias, and the human instinct for signaling to preserve individuality and status within a group and against the algorithm. One need only rabbit hole down various corners of the internet to see this, but its even more pronounced in personal fashion, indie bookstores and art galleries, and even inside people's homes.

It is immensely gratifying to me because it means humans will always need humans, no matter how hard tech tries.

In trying to financialize, map, or otherwise algorithmically diagnose taste, effort impeaches itself.
by Sniffnoy | 2025-05-17 20:03:25+00:00
> Technically correct, yes, but muonic atoms have a lifetime on the order of microseconds. They aren't really relevant to the everyday-scale physics I was discussing.

But they're relevant to the particular argument you were making, which involved only the nuclei and not what was orbiting them. Unless I'm misunderstanding?

> There is however Lattice Confinement Fusion [1] which claims to overcome the Coulomb barrier through some kind of "screening" from the electron cloud in the lattice. That seems more like it would work on at everyday scales, though I don't understand it nearly enough to offer any opinion on viability.

Lattice confinement fusion is generally considered to be crankery, as I understand it. It's what Pons and Fleischmann were doing. There are various people who have continued work on it but my understanding is that basically none of it is credible.