skysight-inc/HackerNews huggingface dataset:
1) Hydrogen combustion engines exist, but are extremely inefficent. For this reason all Hydrogen buses currently in use use fuel cells, which are expensive and complicated. That you were unaware of this makes me doubt the rest of your commentary.

2) There is a huge existing logistics network which conveys diesel to all corners of the world. The same, in a sense for electricity. For Hydrogen this doesn't exist.

5) The chairman of JCB wrote to all his employees before the Brexit referendum to say how he was absolutely convinced it would be a brilliant success and would lead to great prosperity for Britain. So probably not the best people to take strategy advice from.

In Europe at least, battery powered trains and commercial vehicles have been in use for decades simply because they were the best solution for certain use cases, before anyone thought about the climate or subsidies related to it. Hydrogen only came along once subsidies did.

In every single case I am aware in my country Hydrogen vehicles were only purchased because politicians insisted that Hydrogen MUST be used, and these projects have pretty much all been disastrous.

Recent in my city a number of diesel trains were replaced with battery and hydrogen. The Hydrogen trains lasted two weeks before they gave up and went back to Diesel. The battery ones are running perfectly.
It's weird it's taking that long, as RCS on Android have been supported for ages here, I think even before some US carriers.

I first tried RCS in early 2019.
Hydrogen vehicles are EVs too. They don't run H2 through a piston engine, it goes through a catalytic converter that generates electricity, aka Fuel Cell.

Toyota FC stack costs ~$11k, about the same if not cheaper than a 100kWh worth of Li-ion cells.
You need an option to send a notification whenever the code appears in the decimals of pi.

/s
Poorly coded slow library that leaks memory. Wouldn't recommend.
As someone responsible for login/registration at a large online retailer, I see so much bot traffic and attacks. Attackers try to enumerate registered users, try to mass-login with credentials from password dumps, try to register accounts controlled by bots.

Login forms are a war zone. Looking for patterns that indicate the other party is a bot and serve them (and only them) a captcha is a technique that is quite effective. But it is not perfect. Especially business customers often get forced to solve captchas in our system.

If you know of a better solution (other than: don't be a big online shop), I'm all ears.
You are probably writing this in a browser with Rust code in it.
Ask HN: Interest in a pgvector-based RAG system library?
I built a RAG system using pgvector as the backend for local-first vector search. I've already extracted and open-sourced the text extraction component as Kreuzberg (https://github.com/Goldziher/kreuzberg), separate from my main business (https://grantflow.ai).

The core system is fairly generic and could work for many use cases with minimal changes. Before investing time in packaging it as a library, I'm curious:

- Would the HN community find value in a pgvector-based RAG library?
- What features would be most important to you?
- What belongs in open source vs. commercial offerings?
- What common pitfalls should be avoided?

I'd like to gauge if there's actual interest before publishing something nobody will use. So your Feedbacks are most welcome!
The 400B in revenue is there to be paid out to shareholders not to pay for browser development when not needed.

Apple only has a browser team because they need to keep up with parity for their OS.
How far will you go? If you are user of Linux, are you going to inspect all sources before using a distribution?
There is still no evidence that SARS CoV 2 was leaked from Chinese BSL4 lab in Wuhan because evidence links virus to Russian BSL4 lab «Vector». For example, first report for atypical pneumonia with rate of 100 cases per day (700 per week) was on Oct 16 in Russia as reported by newspaper «Аргументы и факты на Енисее» №42. Many Russians medics had immunity to Covid19 already when epidemic started, as shown by their antibodies.
I know of no law here in Germany that would make it illegal, heck, Germany allows me to sign my PGP Key with my National ID. There has been some conservative resistance over the years but it's still legal and in practice for the normal user simply not an issue. Unless you are using things like Anom or other messengers that are like exlusively used by criminals and even it's not illegal in itself you might at worst get caught up in a sting operation when they take down the central servers.

Fun fact most Tor exit nodes are in Germany. Hosting those is more risky.
> Fuel cells are presumably more expensive than battery packs.

Maybe, but a tank of hydrogen burnt through an ICE is much cheaper than either

For your storage and production concerns, here it is working in practice

https://youtu.be/5rk1RsT64o4?si=LLmX51kT2_YeRp2g
It’s a deliberate design decision because of the stripes:

> The pattern of vertical stripes means that kerns can only be a multiple of the stripe repeat (not quite true, and i have sketched out more general versions of this, but it is true for this font).
I started looking at this as I'd like to add one to a few of my sites, but soon started down a rabbit hole:

1. Many code examples just handled light/dark and once clicked you cant easily get back to the system setting.

2. Seems folks going about this many different ways.

3. The Flash of Unstyled Content issue.

4. Im a big tailwind fan, but I think a clean implementation should exist just with the most vanilla CSS/HTML and very light use of JS as necessary.

5. Storing the preference once set

6. Discussions on adding this "simple" (seeming) feature bought out a wall of comments when someone suggested adding it right here on HN, and as of today, HN itself still doesnt have this "simple" feature.
Google would retain copyright to all of it's employees contributions to Chromium. Which I recall being 90%+ of contributions. The propsal PDF from justice.gov doesn't mention Chromium anywhere, so maybe Google will retain copyrights, but the sale would seem pointless if they do.

The real question is to what level Google continue investment in Chrome after the sale. Remember both Mozilla and Apple will also loose out on the search engine deal.
It depends on the size of the satellite and its power use. Small spacecraft often don't use enough power to generate enough heat to warm themselves. The problem then is batteries get cold (which is one of the places you need heaters) and become inefficient and then you end up in death spiral. Here the probe likely wasn't generating enough power anyway, so that would almost certainly kill it before the cold.
Is human intelligence starting to decline?
Explicit as in when you run a new app it does not have access to any of your files and there is no way for it to gain access without you, the user, giving it.

>Does clicking a file count?

Yes, clicking a file from the file picker counts.

>Asking for code reformatting across the project?

You can grant access to a directory in that case.

>How long does access last? How is it revoked?

It can last forever or until the application is closed. There is room to choose how exactly it could work.

>If the user runs "reformat project" once, then gets a new version, are try going to have any warning that "reformat project" is about to encrypt every file it touches?

That would be up to the design.
"The Neovim community seems hell bent on turning Vim into another Emacs kitchen sink style ecosystem"

Not all of Neovim users do that, I think. My setup is pretty minimalist, other than basic requirements like syntax highlighting, linter... I have no desire to turn it into full-blown IDE like VS or IntelliJ. So no Astrovim, NVChar, Lunarvim etc etc. Just plain neovim. Actually that's the same way I setup vim. Both nvim and vim which shares the same config.
Ah I see. The reason it complains now is that the LTSC systems are called Windows Enterprise LTSC, didn't even know that they fell under the Windows Enterprise category.

You can run XPipe on a local LTSC installation, you just can't connect to one remotely because it thinks that you are connecting to a Windows Enterprise server. I will think about how to solve this the best way, because that wasn't on my radar
It's frustrating because it often seems like a lot of regulation is scoring own goals but inevitably initiatives to "fix" it are as you describe - money grabs at the expense and well being of the general public.

It would be nice if we could try out some genuinely different frameworks that were well thought out instead of transparent attempts to abscond on responsibilities.
> There is not a text on this planet that encodes what the heat of the sun feels like on your skin.

> A person who had never been outdoors could never experience that sensation by reading text.

I don't think the latter implies the former as obviously as you make it to be. Unless you believe in some sort of metaphysical description of human, you can certainly encode the feeling (as mentioned in another comment it will be reduced to electrical signals after all). The only question is how much storage you need for that encoding to get what precision. However, the latter statement, if true, is simply constrained by your input device to the brain, i.e. you cannot transfer your encoding to the hardware in this case a human brain via reading or listening. There could be higher bandwidth interfaces like neuralink that may do that to human brain and in the case of AI, an auxiliary device might not be needed and the encoding would be directly mmap'd.
DeepSeek founder, prefers humanities graduates over techies
DeepSeek CEO Liang Wenfeng argues that critical thinkers with a deep understanding of human behavior and culture contribute valuable insights to AI development. Instead of traditional tech qualifications, he values humanities graduates and Generation Z candidates. This strategy fosters innovation by encouraging fresh ideas and unconventional solutions. Liang focuses on long-term growth by nurturing a work environment centered on autonomy and intellectual exploration.
I don’t know why “number of companies using language X” is a metric that is used here. Wordpress is serving 43% of websites on the internet as of 2025, so we should all be learning PHP!
The costs aren't enormous or anything close to it.
I think a lot of people miss the fact that China did not get to electric out of the blue it invested heavily in all these techs Hydrogen, Nuclear, Wind, Solar and batteries the cheapest and easiest to scale turned out to be Solar, Wind and then batteries.

Even today China is still building more hydrogen and nuclear plants than most of the world combined but those technologies have not scaled or gotten cheaper at the same rate as solar, wind and batteries so are not growing where as solar and wind are. China is close to reaching the point where it could start replacing its coal electricity with solar, wind and battery as it is cheaper.
Quoting from Wikipedia here:

The stated goal was for sites to be able to restrict access to human users instead of automated programs and "allow web servers to evaluate the authenticity of the device and honest representation of the software stack and the traffic from the device".

Which on the surface seems like a legitimate use case I have to be honest.
Back in my day there was just something nicer about knowing it was a real human telling me to kill myself for being gay
The EU is facing severe demographic and economic challenges through the aging of its own population, rise of the radical right, issues integrating its immigrant population and Russian threat. While your savings will probably disappear due to the fall of the dollar.

However, in my opinion the United States is not going to collapse, worst case it will be replaced like the British Empire, leaving an advanced Western country (i.e. UK) behind it, minus the entire managing the world part

Also you should read about The Decline of the West, and its influence on Nazi ideology, not every prophecy is correct, and not every prophecy is beneficial to follow
Not illegal in Finland at least.
The most important thing to understand is that these services don't have your interest in mind and they are out of country, so they can offer you bad advice with no liability on their end (vs. say a CPA). Your problem is not setting up a "free zone company" or whatever that means but getting your current obligations to drop. You do that by visiting your local tax office and telling them you are off the country. It doesn't mean your liabilities disappear overnight.

Your biggest liability (tax-wise) is going to come from your revenue source. That's also where you should be careful. Next, is the country of your passport (because they got you by the **). Everybody else matter very little which is why you should steer away from Dubai, HK, off-shore, etc.. until you understand the nuances of your situation.
Using most modern technology to enforce most regressive step. I am sure this will extended to go after dissidents
If there's one good thing that's come of the drama it's that I've witnessed state agencies asking themselves if they actually need certain information. Never thought that would happen in my lifetime.
You can trivially do it without locking using a version column.
>You cannot put the eggs and then boil the water because that is not going to work.

Why would the author say such a thing? In any rate, doing precisely that works wonderfully for me.

>There is some amount of moisture trapped between the shell and the albumin. It prevents the sulfur and iron inside the yolk from forming iron sulfide, which is the grayish color we often see on over-boiled yolks.

Why would "moisture" at a completely different boundary, not at all in contact with the yolk, affect the outside of the yolk? Overcooking is what turns them grey.

This article is absolute bullshit.
It's 2025 and your depending on your country they might be getting quite a bit of information (bank accounts, brokerage account, insurances transactions, Beneficial Ownership, etc...) Lookup CRS.
Hilbert's 6.problem:derivation of fluid equations via Boltzmann's kinetic theory
Not frivolous, but outright incorrect.
i did something similar with a vodafone phone like 3 times, they just kept giving me the same model again and again.
This looks amazing, is there anything one can do to change the system prompt where it is available?
How long until someone funds a company pitching social credit tracking as a service? Imagine all the opportunities for third party integrations.
Calling all Blue Blaze Irregulars...

We’re one step closer to the Oscillation Overthruster!
Anyone know any good infinite canvas app for the iPad?

I’ve used Goodnotes for years, but it doesn’t have an infinite canvas unfortunately. Otherwise it’s an amazing app and nothing really comes close. I’ve been trying Apple Freeform as an alternative, but it’s truly terrible in comparison.
I think, but am not sure, the point they're trying to make is that hospitals and insurance companies can "charge" really high prices and then they can forgve those high prices in exchange for a tax break?

That's not at all how it works so they don't have any idea what they're talking about. This is like when people say businesses can "write it off on their taxes". Only people who don't know what that really means say it.
It is insane to travel without a passport. How is it even possible! Americans are living in some weird timeline.
Replacing the whole pack is the way to go in battery replacement.

Key problem is the battery management system needs to send exactly the same messages as the previous one and at the same time handle the new cells correctly.

Someone would have had to reverse engineer the i3 BMS communication with the rest of the car for this to work. (I believe there is a repo on GitHub).

Similar swapping can be done with the Nissan Leaf.
So everytime they want to make a change to their backup system they’d need to update the standard for everyone else ? Or make an extension of it just for them

The entire PC ecosystem only exists because the law says that there was a way you could, legally protected, interact with someone else's intellectual property.

What’s that way ?
> The ideal drivetrain was invented over 20 years ago by Toyota and apparently nobody but me and Honda noticed it!

I bought and drove a 2005 Prius for about 10 years. Loved it. But I would never buy another hybrid. My family now owns 3 EVs. Hybrids are better than pure ICE vehicles. But EVs are much much better than both of them. I could tell you about all the benefits of EVs, but until you own one, it may not sink in.

Hybrids are good for some people. Apartment dwellers without a place to charge an EV.
Rampant spam has forced Google to turn off RCS ads in India[0]

[0] https://www.theverge.com/2022/6/1/23150243/google-rcs-ads-in...
Wry curious to know what is your strategy for sales and marketing. How did you find your first customers and how do you keep getting more (besides existing ones comes back for more)

Would chat privately if you prefer but no contact details in your bio.
No such interest has been granted by copyright. You can create a painting today in the style of any trending artist without issues.
How do you watch YouTube on your computer?
I used to watch youtube via chrome with a couple of extensions (adblock, unhook, clickbait remover), but adblock now seems to be hit and miss so it's a pretty poor experience.

I get if I was on android I could just use newpipe or something, but is there a browser-based equivalent I can use on my PC(I'm typically on a work computer (win11) & don't have local admin)?
Is that really "space" as opposed to "the lingering effects of the big bang"? (or less interestingly, the temperature of the CMB photon gas)
Years ago I saw that most browser extensions ask for the permission “can access all data on all websites” and thought yeah let’s not do that…
Indeed. The Times is the mouthpiece of power. The event referenced in the GP comment [1] was a classic example of the NYT playbook when they get some information that goes against their narrative: 1) delay publication until they are absolutely forced to publish, 2) edit to play down the story, and 3) bury it as well as they can. They famously did this with the Holocaust [2].

[1] https://en.wikipedia.org/wiki/List_of_The_New_York_Times_con...

[2] https://en.wikipedia.org/wiki/List_of_The_New_York_Times_con...
Why wouldn't they?

Also they have the have the formula because they've already done it. And it works, why wouldn't they want to keep doing it, but more?
I definitely see it as a mouthpiece for the establishment and three letter agencies, my interest and trust in it is pretty much 0.
Tesla is done in Germany: 94% say they won't buy a Tesla car
Have you considered using something like Slack or Discord or (can’t believe I’m suggesting this) Teams, all of which sound like they’d be more suited to your use case?

This does not sound like an impossible stretch, works on more device types, and in the case of Slack or Teams can also be configured for HIPAA compliance (which while you don’t call it out, seems like it may be useful). Tens of millions of people use a chat system for work distinct from their personal friend groups, even if the venn diagram is a circle.
It's more "regression" or something. "Collapse" implies a dramatic event and something completely broken.
The UCS has been regularly publishing data on whether grid charged EVs or ICE had lower CO2 in the USA. Even their oldest data in 2012 shows a clear improvement, based on the assumption of grids not getting cleaner with non-hybrids being worse everywhere in the US, and hybrids only competitive with EVs in the worst grid areas:

https://www.ucs.org/resources/state-charge

Their updates obviously showed continual progress from there as the grid cleaned up, a process which continues, as does lower carbon footprint batteries (LFP is half the carbon of NCM) and higher efficiency EVs.

https://blog.ucs.org/dave-reichmuth/driving-on-electricity-i...

It would be interesting for them to revisit the old projections with the 12 years of newer grid data and calculate the real numbers and compare them with their conservative estimates.
I would like to point out that your perception of what a browser can/should be is based on what Google has turned browsers into.

What a browser is in 2025 is vastly different from what anyone thought they would ever be. There are major, major issues with the way web engines/web browsers function today and much of those issues stem from Google's near monopoly on browsers.

There was a lot of very interesting and good discussion around this in some of the Mozilla/Firefox threads recently. Mostly about how browsers turned into something they were never meant to be, which has changed the way the internet works and how we interact with it.
It's not. The method, RubyLLM.chat creates a new instance of the Chat object, as has been copied here:

module RubyLLM
class Error < StandardError; end

class << self
def chat(model: nil)
Chat.new(model: model)
end

https://github.com/crmne/ruby_llm/blob/9825f4fea089b1b974961...

If you're wondering about module RubyLLM. That's just how Ruby is often written.

Addendum:
Ruby does not require you to put the opening and closing parenthesis on a function to run that function, and it's not always put there when you have zero or 1 parameter (I find it to be cleaner when you have a parameter, but have no opinion when there isn't a parameter)

In the example code from the link itself, you'll see:

chat.ask "What's the best way to learn Ruby?"

which is the same as

chat.ask("What's the best way to learn Ruby?")
Finland's National Allergy Program Successfully Reduces Allergic Diseases
"Regression tends to the mean" as my dad used to say. He got a first in numerical analysis and the rest of us got 2.ii in maths and computing. But if you skip to the next generation it's 1st again so..
Oh and proton mail brags that Swiss allows it too.
US schools really ram home the 'we are american' message. 'Land of the free' and all that.

Those cultural ties will take tens, perhaps over 100 years, to weaken enough to cause a civil war.
Care to post your browsing history from the last week? Please include private tabs.
If you're looking for labeled shapes with connections, Apple's Keynote is a great free alternative to OmniGraffle.
The collapse of the Roman Empire took decades and British Empire had a similarly long decline, but I understand your sentiment.
For a service I am working on, I was considering paid CDN, but they were all cost prohibitive for what I expected the usage to be. So I wrote my own CDN(2k lines of code with peer state synchronisation). But Bunny always seemed to be the best bang for the buck. I think they are from Slovenia, so that is a plus in my book.
I can't remember the last time I sent an SMS. Comparing iMessage to SMS is not useful. Compare it to one of the (several) cross platform messaging services.

In Europe, Android is on equal par with Apple. WhatsApp is the default messaging service - it is universally installed among my friends, relatives, colleagues, contractors etc.. No-one cares what model of phone the other person has. Everyone communicates.
So much of politics these days boils down to ontology.
We are at 60$ on the cell Level.
The articles (except for the syndicated Wired articles) are great, but the comment section is Reddit-level degeneracy.
Usually though it just creates long term issues, putting off important work to later.