MurphyA/hacker-news huggingface dataset:
by bluGill | 2025-05-09 15:05:49+00:00
Remember we need to talk about law as it existed back when this happened not the law today. Back then you didn't get copyright protection unless you registered with the copyright office (and a few other things that I'm not quite sure of - none relevant to the law today). So the copyright was never registered, likely because the distributor was expected to register it and they failed to do their job. There might be a lawsuit against the distributor for breach of contract, but it wouldn't be a copyright lawsuit.

Today things are much easier, if you create something it is copyright. If you want to sue you need to register, but you can register at anytime. If you register you can sue for triple damages for anything that happens after you register, but you can still get damages for things that happened before your register. (The above is my understanding of the law, but I'm not a lawyer)
by ntonozzi | 2025-05-09 15:06:05+00:00
I've been so impressed with Cursor's tab completion. I feel like I just update my Typescript types, and point my cursor at the right spot in the file and it reads my mind and writes the correct code. It's so good that I feel like I lose time if I write my instructions to an AI in the chat window, instead of just letting Cursor guess what I want. None of the other models feel anything like this.
by scrappyjoe | 2025-05-09 15:06:06+00:00
The child comments are a bit all over the place, but I can clarify.

At present, the Zombieverter supports:

Chademo CCS by interfacing with the BMW i3 LIM CCS by interfacing with the open source FOCCCI CCS controller.

The FOCCCI CCS controller is an associated project. See https://openinverter.org/wiki/Foccci

FOCCCI is the newest kid on the block, but it has been successfully integrated into several conversions now.
by watwut | 2025-05-09 15:06:22+00:00
Hanlon's razor is overused and abused. Quite often, it is actually a malice and if you are willing to look at the situation dispassionately, it is quite visible.

Hanlon's razor was originally a joke. Not a scientific observation how world works, but a funny sentence about there being a lot of incompetence in the world.
by damnitbuilds | 2025-05-09 15:06:32+00:00
Post, sir, and the mods be damned !

I did.

It is indeed unfortunate that people vote down posts in discussions like these not because they are incorrect, but because they disagree with the facts presented.

More Reddit than HN.

But short of mods tracking down downvoters and having them justify their actions, I don't see how to de-Reddit it.
by trollbridge | 2025-05-09 15:06:57+00:00
It's become a very common interchange format, even internally; it's also easy to deflate. I have had to work on codebases where CSV was being pumped out at basically the speed of a NIC card (its origin was Netflow, and then aggregated and otherwise processed, and the results sent via CSV to a master for further aggregation and analysis).

I really don't get, though, why people can't just use protocol buffers instead. Is protobuf really that hard?
by dredmorbius | 2025-05-09 15:07:05+00:00
I've further narrowed down the breakage point to between these two items, at least when initially checked (both now fail).

https://news.ycombinator.com/item?id=42937148 (works)

https://news.ycombinator.com/item?id=42937147 (fails)

(Also via email.)

This suggests an item-count or time-based sliding window to me.

As I write this, earliest accessible content is <https://news.ycombinator.com/item?id=42937674> ... and that's just become inaccessible as I'm updating this comment.
by jermaustin1 | 2025-05-09 15:07:16+00:00
I have the same thing happen on Google Maps - on top of my car just spinning in circles, it will also show up 100-300 feet to the right of the road I'm driving on, constantly doing navigation updates to the nearest street. When I unplug from carplay, it's fine, and back on the road, then when I plug it into the car it pops to the right again and starts doing updates.
by GlibMonkeyDeath | 2025-05-09 15:07:28+00:00
I was going to do the "well akshually..." about HCFs because this article is so light on details. I used to work in a related field many years ago, and the attenuation of these fibers relegated them to niche applications (short-lengths that needed the odd properties of a hollow core, like ultra-high power transmission, low dispersion, low nonlinearity, etc.) They were orders of magnitude too lossy for long-haul telecommunications applications at the time.

But a quick search proved my knowledge was not up to date - here is the paper linked from the Laser Focus World blurb someone linked above. Looks like HCFs have achieved loss parity with traditional single-mode fused silica fibers, at least in the lab. Pretty amazing and cool if you ask me!

https://eprints.soton.ac.uk/470034/1/OFC2022_PD_Jasion_submi...
Show HN: Building a self collected multiview mocap studio for robot training
by pablovelagomez | 2025-05-09 15:07:48+00:00
MVP of Multiview Video → Camera parameters + 3D keypoints.

The basic pipeline as of right now looks like this:

1. Capture – Using 4 iPhones and an Insta360 Go. iPhone videos are captured via Final Cut Pro Multicam for easy sync and the exocentric view; the Insta360 Go is used for the egocentric view.

2. Sync – Custom Gradio app using two @rerundotio viewers and callbacks for easily aligning frame timestamps so the ego and exo views are aligned.

3. Calibrate – Use VGGT from Meta to get intrinsics/extrinsics for sparse cameras.

4. Estimate 3D – Use RTMLib whole‑body keypoint estimator on each frame, then triangulate in 3D.

What's missing?

1. No temporal coherence: I’m estimating keypoints one frame at a time and one camera at a time. This leads to a lot of jittering. For now, I plan on adding a One Euro Filter to help with jittering. Long term, I'd want to train a multiview keypoint estimator

2. Kinematic fitting is still missing; this is my next goal. The output will be joint angles, as explored in my previous posts.

3. Missing dense point cloud: VGGT seems to fail for me here. I’m looking to explore using MP‑SFM as a method for generating dense multiview depth maps + normals (plus it has a friendlier license compared to VGGT).

4. Eventually, creation of 4D Gaussian splatting using something akin to DN‑splatter—my long‑term goal is a data engine that provides poses/depths/splats/keypoints/etc.

Links (still a work in progress, but wanted to share for folks who want to dig in):

1. Saved RRD visualization – <https://app.rerun.io/version/0.23.2/index.html?url=https://h...>

2. Multicam ego/exo sync app – <https://github.com/pablovela5620/multicam-ego-sync>

3. 3D person detection + triangulation – <https://github.com/rerun-io/pi0-lerobot/tree/hand-kinematic-...>
by chriscjcj | 2025-05-09 15:08:16+00:00
As a live television newscast director in a major market, I would be very interested to see a feature comparison between this product and its main competitors: Ross OverDrive, Sony ELC, and Grass Valley Ignite.

Due to the substantial complexity of these automation systems, they tend to have a lot of inertia. But if anything could drive a station group to make a change, the "free" part can be effective.

I did take a look at the supported hardware (1). I think that's the pain point for many shops. Free open source production software is great, but being forced to choose form hardware products you don't prefer is a pretty tough tradeoff.

Historically, I suppose that's been one of FOSS' big challenges.

(1) https://nrkno.github.io/sofie-core/docs/user-guide/supported...
by constantcrying | 2025-05-09 15:09:16+00:00
>the injustice of inheritance

Which injustice exactly? It is just a basic corollary of private property.

>Billionaires like Musk got to where they are because they started with so much wealth to begin with, not because of skill or intelligence.

Elon Musk, whatever you think of the person. Has created jobs for tens of thousands of people and guaranteed the US leadership in space. Elon Musks wealth is in his companies. Even if you do not like Musk, Tesla and SpaceX existing are beneficial, at least to the tens of thousands of people who are working for these companies. I see no injustice at all.

Of course the person in the article is an enormous hypocrite, since she choose to become a multimillionaire, based on her "injust" inheritance. Almost nobody will receive an inheritance as great as hers after giving 92% away.
by kaladin-jasnah | 2025-05-09 15:09:24+00:00
It's interesting this is such a large problem there. In NYC, the tap-to-pay OMNY system is literally excellent. I swear it processes cards in a second or less and you save a lot of time by not buying a MetroCard. Are the BART scanners for some sort of RFID/NFC cards that are local to the train system, or do they accept credit/debit card payment? I'm curious how OMNY is so fast (compared to even going to a store and paying with tap to pay) and why BART is slow.
by _djo_ | 2025-05-09 15:09:26+00:00
I'm sorry, but that sounds like an excuse.

Yes, when you have to vote between the lesser of two evils, but one of them is blatantly more evil and incompetent than the other, you're responsible for choosing the more evil and incompetent option and the damage that results.

No system is perfect, and few countries provide morally and politically pure options to vote for in national elections. So an informed and engaged population often needs to vote tactically, understanding that establishments change slowly, and work to elect more effective candidates at local & state level who can work their way up to the national stage.

Voting in the anti-establishment choice just because voters are upset that progress is slow and politics is hard is the stuff of tantrums, and voting adults are supposed to be beyond that.
by a_shovel | 2025-05-09 15:09:54+00:00
In coming years, as solar farms expand to meet demand during winter, there will be periods during the summer where there is a massive oversupply of electricity at midday for days or even weeks at a time. Solar farms will disconnect because there's nowhere for their electricity to go. So, increasing output for a new demand during that time is as easy as reconnecting, and unlike fossil fuel power plants there are no marginal costs.

What if the zero marginal cost were passed on? What would happen if energy was free for even a couple of weeks a year? Bitcoin mining is thinking too small. This will affect entire economies. Seawater desalination is expensive largely because of energy costs; what if those costs went to zero? What other obscure ultra-energy-intensive industrial processes will suddenly become viable because of mass solar? Those processes aren't done with solar now because of the opportunity cost: it would be more profitable to skip on the equipment and just sell power on the grid. What if that opportunity cost were gone?

Energy storage will become a lot more viable when the input is free. Not even necessarily grid-scale storage: I bet house-scale energy storage will become a significant market if the price difference between day and night gets large enough.

Mass solar means (or, it should mean) that energy will occasionally become free, and this is one of the things I'm most excited for the future over.
by tippytippytango | 2025-05-09 15:10:06+00:00
Sort of, but in a good way, if I’ve spent $15 on a problem and it’s not solved, it reminds me to stop wasting tokens and think of a better strategy. On net it makes me use less tokens, but more for efficiency. I mostly love that I don’t need to periodically do math on a subscription to see if I’m getting a good deal this month.
by stncls | 2025-05-09 15:10:33+00:00
You're right, but it's very subtle and complicated.

In theory, the simplex method is not known to be polynomial-time, and it is likely that indeed it is not. Some variants of the simplex method have been proven to take exponential time in some worst cases (Klee-Minty cubes). What solvers implement could be said to be one such variant ("steepest-edge pricing"), but because solvers have tons of heuristics and engineering, and also because they work in floating-point arithmetic... it's difficult to tell for sure.

In practice, the main alternative is interior-point (aka. barrier) methods which, contrary to the simplex method, are polynomial-time in theory. They are usually (but not always) faster, and their advantage tends to increase for larger instances. The problem is that they are converging numerical algorithms, and with floating-point arithmetic they never quite 100% converge. By contrast, the simplex method is a combinatorial algorithm, and the numerical errors it faces should not accumulate. As a result, good solvers perform "crossover" after interior-point methods, to get a numerically clean optimal solution. Crossover is a combinatorial algorithm, like the simplex method. Unlike the simplex method though, crossover is polynomial-time in theory (strongly so, even). However, here, theory and practice diverge a bit, and crossover implementations are essentially simplified simplex methods. As a result, in my opinion, calling iterior-point + crossover polynomial-time would be a stretch.

Still, for large problems, we can expect iterior-point + crossover to be faster than the simplex method, by a factor 2x to 10x.

There is also first-order methods, which are getting much attention lately. However, in my experience, you should only use that if you are willing to tolerate huge constraint violations in the solution, and wildly suboptimal solutions. Their main use case is when other solvers need too much RAM to solve your instance.
by Kon-Peki | 2025-05-09 15:10:48+00:00
It was a chain of their own decisions that got them here.

But yes, it is hard to imagine a way for the App Store to exist in its current form if the ruling stands. If you can use an outside payment provider taking a 3-5% cut, nobody is going to use Apple directly and pay 15/30%.

What are some of the options? No 1st-party App Store? Dramatically increased annual dev fee? Devs pay a per-GB fee for customer downloads of “free” apps?
by xhkkffbf | 2025-05-09 15:10:49+00:00
A big motivation for the Trump administration seems to be the politicization that happened under the Biden regime. There were many large NSF grants given to fund "education" and they were pretty much focused on people with the preferred racial and gender status. These were also substantial grants that were often 3-10 times bigger than the regular grants given to regular scientists. This created much jealousy as well as other practical problems.

The Science article suggests that there's danger of politicization, but that has been the case for many years.
by Arnt | 2025-05-09 15:11:26+00:00
A few months ago I read that there are applications to connect more battery capacity to the German grid than the country's peak usage.

If all of that is approved, Germany could run 100% on battery powered (at least for a few minutes). I can see why... If battery operators can buy power at below-zero prices now and then, profit should not be a problem.
by PaulHoule | 2025-05-09 15:11:30+00:00
If people decomposed agile into little bits they probably wouldn't be doing agile anymore. The other day somebody posted a question about "how do I push back about management going to one week sprints?" My answer, which I didn't post then, was "if management really wants to go fast give up on sprints"

That is, Kanban + Continuous Integration >> Scrum by a lot. Seen from that viewpoint sprints are not something that speeds anything up (seductive name there!) but rather a bunch of phony deadlines and needless meanings (you really think people feel psychologically safe in a retrospective meeting that was scheduled just to have a meeting? is there really something worth talking about in an every two week one-on-one in your manager which isn't important enough to knock on their door and ask about right now?)

If I was evaluating a manager I'd probably get them to give me a list of practices that they say their team is following and then check to for conformance against that. I am less bothered with do they do code reviews or not but rather "did they tell me that they enforce five conventions in the code and looking at the code I find they rarely do... Lets sit in on a code review"
by UncleOxidant | 2025-05-09 15:11:49+00:00
The irony is that in their supposed effort to "Make America Great Again" they're going to end up accelerating China's rise. We may have decided that basic research is no longer something we want to do, but China's going to continue to forge ahead and leave us in the dust. All thanks to people who have no understanding of how anything works, but only want to tear things down that they don't understand.
by b112 | 2025-05-09 15:11:51+00:00
Yes, but...The skinny is that the end goal is a massive station on the moon, and a single, powerful downlink fron there.

This is facilitated by two things.

First, we at Starlink are on the cusp of forcing light into 'particle only' mode, or PAM. With PAM, as the light is a particle, not a wave, it undergoes perfect time dilation.

Thus, transmit time between the moon and earth is instantaneous!

With this idea moderately solidified, we're preparing an aggressive launch schedule, to get that hardware on site!

Starlink receivers will be able to transmit via PAM too... once we've flushed out the tech.

All it will require is a series of future software updates, so buy your Starlink now!
by radleta | 2025-05-09 15:11:55+00:00
Hi HN! Long-time lurker here, finally sharing something of my own.

After years of reading Show HNs and deep dives, I found myself needing a resume for the first time since 2008. But after two decades of building software, a static PDF just didn't feel right—so I am building an interactive, data-driven way to view my resume in React, and wrote up the process, the tech, and the "why" behind it.

This post is about the journey: how I approached the problem, the design and data modeling decisions, and what I learned building a prototype that’s still evolving. I'd love to hear your thoughts, ideas, or feedback—especially from folks who care about UX, data, or creative ways to present yourself online.

I'm also starting to look for my next role, so if you're hiring or just curious, I'd be happy to connect. Thanks for reading!
by scrappyjoe | 2025-05-09 15:12:06+00:00
I've got one of these, and it works great! The core developers behind this work very, very hard on it, and I am amazed that it works to the degree that it does. Like, there are cars on the road running with this VCU.

Two weaknesses of the project are spotty / outdated / unclear documentation and support. This is not because the community doesn't care, it's because keeping the documentation up to date is hard. And support is hard, because you have like 3 core commenters on the forum answering 90% of questions. They know the stuff inside out, but they take strain from having to answer 'my hello world is broken' type questions over and over again.

It's hard to demonstrate this to software people. You know the endless 'works on my machine' swamps people would get stuck in in the bad old days? Imagine that, but you also have no assurance that the machine the person is using has a hard drive connected, or a cooling fan. You have to cover _all_ the hardware related root causes before you can even begin to address and software related issues people run into.

I think the best support this community could get is more resources dedicated to documentation and support. That would also serve to make the learning curve less steep.

EDIT: I think it's also worth saying that once you set one of these once, it becomes very easy. It's just figuring it out the first time that's hard. If anyone buys one and has trouble, hit me up and maybe I can help.
by mturk | 2025-05-09 15:12:46+00:00
Larry Smarr recently spoke at NCSA and they wrote up a fair bit about the history of the institution: https://www.ncsa.illinois.edu/homecoming/

It has links to some of the panel reports that led to the founding of NCSA, but the OSTI website has been having intermittent 502s for me this morning.

The original "black proposal" was online on the NCSA website, but seems to have been missed in a website reorg; wayback has it here: https://web.archive.org/web/20161017190452/http://www.ncsa.i... . It's absolutely fascinating reading, over 40 years later.
by rkagerer | 2025-05-09 15:13:23+00:00
...and any document which is shared with more than handful of cypherpunks will certainly end up shared with the main browser vendors

Can you suggest some best practices those cypherpunks can take to mitigate the weaknesses and use it in a secure fashion?

Eg. I don't sync browser history and tend to turn off other cloud-supported features (including "logging into" my browser).
What do you think about YC Summer 2025 Request for Startups?
by BetzyFlores504 | 2025-05-09 15:13:53+00:00
1) Full‑stack AI Companies – start your own AI‑staffed company to take on slow‑moving incumbents

2) More Design Founders – opportunity for designers to use AI themselves to launch their own products and build their own companies with taste

3) Voice AI – phone calls haven’t changed in 100 years; opportunity to change that with voice‑AI bots

4) AI for Scientific Advancement – use AI to solve complex problems in drug discovery, chemical‑process optimisation, metals & mining, or power‑grid optimisation

5) AI Personal Assistant – create systems that truly handle your emails, scheduling, and tasks without supervision

6) Healthcare AI – reduce the $1 trillion‑plus in administrative costs by automating healthcare‑data systems

7) AI Personal Tutor – deliver personalised education through multimodal AI explanations of complex topics

8) Software Tools for Robots – build the software foundation for the “ChatGPT moment” in robotics

9) The Future of Education – reshape how 1.5 billion students learn with AI‑powered personalised instruction

10) AI Residential Security – bring commercial‑grade AI security features to the $20 B home‑security market

11) Internal Agent Builder – create tools for employees to build their own automation agents for repetitive tasks

12) AI Research Labs – fund deep, open‑ended AI research that may take years to commercialise

13) AI Voice Assistants for Email – build voice interfaces that let people process emails hands‑free

14) AI for Personal Finance – provide unbiased, personalised financial advice at near‑zero cost using LLMs

Since I'm building exactly what they are looking for in #5. an AI Personal Assistant at https://saner.ai/, I feel quite excited :)
by chii | 2025-05-09 15:14:57+00:00
The success of their manufacturing has its starts at low wages and long hours, etc as you said. But that is not as true as it used to be, and yet the manufacturing is still growing strong.

The reason is the application of state effort - the profits of this manufacturing is not private, but state owned (even if the factory is private). The state forces the owners of the factory to use the yuan, but keeps the export currency (in USD) - it is how china built up their massive reserves. The state uses this wealth to both build out civilian infrastructure and other forms of capital in a directed way (industrial policy), which also has enormous side benefits to military procurement.

So china's manufacturing power now comes not just from low(er) wages, but from proximity and ease of supply chains. If you needed a commodity XYZ component (like a bolt), you don't need to source it from a faraway place. If you needed a custom component designed, then the factory that would build it and the tooling is down the street.

Lots have been said of silicon valley's proximity benefit to tech startups. The same can be said for china's manufacturing hub(s). For the same reason many other places are unable to replicate silicon valley's success, it is the same with china's manufacturing.