MurphyA/hacker-news huggingface dataset:
by scythe | 2025-08-25 14:18:06+00:00
There's not enough comparison with the conventional ground-source heat pump here. There's not enough modeling of the expected system dynamics. I don't have a physics argument against it (right now at least) but I think that the author is trying way too hard to sell me on the idea of energy storage and not hard enough on why this proposal can work. And I don't think it's just me. Anyone reading the pitch for an energy storage startup in 2025 is probably aware of the basic goals, and more importantly is fatigued and suspicious after watching several dozen clever ideas go nowhere.

Surely you can write a short model of the system at the level of undergraduate thermo. If you have a pile of dirt this big (say about a thousand times the size of a spherical cow) with these pipes running through it, then at a storage temperature T your capacity is X, your leakage is Y, and your recovery rate is Z. Fill in the blanks.
by AlexandrB | 2025-08-25 14:18:42+00:00
How so? Search was way less capital intensive than AI to develop. We started with dozens of search engines back in the 90s and we still ended up with a near monopoly.

Edit: All major AI companies have millions if not billions of funding either from VCs or parent companies. You can't start an AI company "in your garage" and be "ramen profitable".

Edit 2: You don't even need to monopolize anything. All major search engines are ad-driven and insert sponsored content above "organic" search results because it's such an obvious way to make money from search. So even if there wasn't a product monopoly, there's still a business model "monopoly". Why would the same pattern not repeat for "sponsored" purchases for agentic shopping?
by Cthulhu_ | 2025-08-25 14:18:53+00:00
Please don't cite ChatGPT as a source or as a caveat, instead show the actual math, which should only be about high school level; kinetic energy formula ½mv² = e,

In perfect conditions assuming no loss through drag, you're looking at the kinetic energy formula which is ½mv² = E (in joules).

E = 1 kWh = 3,600 kilojoules, velocity v at 10 meters is 14 m/s, so we need to calculate m for v = 14 and E = 3600k, which is just under 36735 kg. "about four of those blocks" is "about" correct.
by Crosseye_Jack | 2025-08-25 14:19:04+00:00
afaik, thats so the device can format the card in its preferred filesystem. Instead of pestering the user (who may only use their computer as a "Facebook machine") to make sure they format the card to X specification, the device can just do that for them. Outside of "that", the device isn't doing anything special during format (unless its using the "secure" bits of a SD card, which pretty much no one does).

However, as at least some of the devices users will be Windows users, it does tend to limit the FS choices to FAT, exFAT or NTFS if the user expects to treat the card as removable storage to transfer files, like in a digital camera, so the issue is pretty much moot. Unless MS are still charging royalties on FAT and the device manufacturer wants to avoid those.

These days with people mainly using their phones, and the transfer of files being done over the air, allows device manufacturers more freedom with their SD card FS choice.
by rvnx | 2025-08-25 14:19:32+00:00
Very unlikely in the real world.

Maybe <5% of devops are checking in reality (and this is very generous); even if they watch it is very difficult to spot since the CA is the same, and short-lived certificates (so very normal that they renew).

crt.sh is even answering 502 Bad Gateway, though it's supposed to be the most used tool to check CT logs in the world.

So maybe, true for few paranoid geeks who usually don't have any information of interest anyway, but not for the 99% others.

The big websites are openly sharing data to govs, so they are backdoored by definition, and they don't need to justify anything.
by ragequittah | 2025-08-25 14:19:41+00:00
This seems like a misrepresentation of OSA more so than the parent post. It prevents people accessing content they may well need. Look at some of the subreddits being blocked if you want to see how far they go. Subs about periods, sex education, stopping smoking, suicide prevention, lgbtq. Not sure how you justify that nobody under 18 would ever have a need to access these things.

When you have to prove you're a child you have to prove you're and adult. The privacy implications of that are why it's a police state problem. It eliminates the anonymity and allows for perfect personal tracking of any wrongthink you may do.

It's also not the only thing the UK government has done to become a police state by a long shot. UK is 1984 adjacent in quite a few ways.
by mastermage | 2025-08-25 14:20:20+00:00
Legal Documents is the big one here. I do think the philosophical notion is kinda cool and interesting, although I am too much of a hoarder to ever use this.

But legal document fading away just because you Haven look that them is just invitation for governments to fuck you over. Just a simple example in Germany taxation. If you do your own tax report then you usually do that 2 years after. So this year I did my taxes for 2023. Now the problem is with this OS all my data and receipts bills whatever that I have to send to the government for my tax report would be gone because why would I open it before I need it.
by athrun | 2025-08-25 14:20:28+00:00
1. Even in regulated markets like Europe, you’ll note that it’s still a percentage of the transaction value, not a fixed cost.

2. In EU, while Interchange is regulated, Scheme fees, Acquirer fees, and Processor fees are not. These are usually also expressed as percentage of the transaction value.

3. Because of the more limited avenues to offset risk, access to credit in EU is more difficult than in more dynamic markets like the US (not saying it’s good or bad, just highlighting that there are downstream impacts).
by lunar-whitey | 2025-08-25 14:21:04+00:00
The United States Constitution is a relic that predates national political parties as a concept. Political parties effectively neutralize many of its structural checks, including federalism.

The framers recognized this failure in their own lifetimes and held to gentleman’s agreements to limit the power of parties while openly anticipating that the system they created would be replaced. The erosion of their informal understanding has taken far longer than expected, but it has certainly occurred. Today, the political consensus that could allow for the creation of a viable replacement no longer exists. History shows whatever follows from this is often very unpleasant.
by haswell | 2025-08-25 14:21:11+00:00
> thoughtfully polished

> enhancing it with care

I get what you’re going for with this comment, but it seamlessly anthropomorphizes what’s happening in a way that has the opposite impact I think.

There is no thoughtfulness or care involved. Only algorithmic conformance to some non-human synthesis of the given style.

The issue is not just about the words that come out the other end. The issue is the loss of the transmission of human thoughts, emotions, preferences, style.

The end result is still just as suspect, and to whatever degree it appears “good”, even more soulless given the underlying reality.
by arp242 | 2025-08-25 14:21:15+00:00
> Obviously I implicitly meant all single use plastics.

On a thread that is about someone misrepresenting a single-use plastic ban as a "plastic straw ban", this is very much not obvious at all.

As for the rest: if there is no plastic, then there is nothing to "waste manage". Or at least less, and mismanaged waste actually breaks down in a reasonable timeframe. It's been an issue for decades. Everyone knows about it. Nothing really changed.
by SpicyLemonZest | 2025-08-25 14:22:13+00:00
I deny that what Trump wants is "political points" in the way the term has normally been understood. What he wants is for the leaders of this company to pay homage to him, giving him a nice gift and acknowledging that their business decisions are subject to his personal will. They're not as rich as Apple, so he'll probably accept something less than the literal gold bar Tim Cook gave him, but they certainly won't be allowed to resume construction just because they make good arguments for the project.
by altairprime | 2025-08-25 14:22:47+00:00
You can see why by looking at the Hue chart for this color:

https://oklch.com/#0.7684,0.1754,218.1,100

To increase brightness past the limit of the Hue band for the color, the rendered output color on a display shifts cyan due to the limited brightness range of a saturated blue in the Display P3 color space. OKLCH is, when varying brightness along a gradient, Saturation-invariant rather than Hue-invariant; whether that effect is desirable is a matter of aesthetic preference, but after decades of Hue-invariant desaturated web color, it’s certainly refreshing to have a choice about which compromised invariance to take.

https://news.ycombinator.com/item?id=44588388

Science recently invented a much-deeper blue LED than we have now, so I expect in a decade or two, whatever ends up succeeding Display P3 will be much more able to represent that gradient without cyan-shift, and all of the years of OKLCH gradients created before that time will end up showing a more accurate blue gradient with only the colorspace change. In the meantime? Do whatever’s aesthetically pleasing; there is no Right Answer in design :)

ps. One could argue that a post-OKLCH colorspace should not accept the binary decision of Hue or Saturation invariance, and instead should be Saturation-invariant to the display’s native limit and then transition smoothly to Hue-invariance at that threshold. I believe that’s a Difficult Problem in color profile specification terms, since it isn’t just pre-calculating the changeover threshold for all monitors (not to mention, do you change blue sooner or same as red, etc) but it’ll be a while longer before I’m versed enough in ICCv4 to explain that perception. It sure would make for an interesting experimental DisplayCAL target, though!
by elmerfud | 2025-08-25 14:22:54+00:00
https://usgovpki.apps.deas.ecs.mil/dod/cas-all-simple/index....

I don't know if their change was intentional but the DoD does publish their CAs for use. I also have to say that if you are blindly trusting the CAs that your browser includes to determine the legitimacy, authenticity or security of your data going to the target of your intention, you are in for a very rude awakening when you learn how they work and how most of them issue certificates.

The way most certificates are signed nowadays is only as strong as the DNS hijacking protection they have. Preloaded CAs make for an ease of browsing experience but protection they actually provide is only in the encrypted transit and not much beyond that.
by kace91 | 2025-08-25 14:23:30+00:00
Does anyone actually buy this way? For anything that isn’t groceries, I check, particularly now that Amazon has roughly the same trust as temu.

Vitamin d? I’m going to check the brand, that it’s actually a good quality type. It’s a 4.9 but do reviews look bought ? How many people complain of the pills smelling? Is Amazon the actual seller?

As for the groceries, my chain of choice already has a fill order with last purchases button, I don’t see any big convenience that justifies a hallucination prone ai having the ability to make purchases on my behalf.
by jwr | 2025-08-25 14:23:55+00:00
When I implemented Oauth2 (Authorization Code Grant, both sides), I found this guide to be quite helpful: https://alexbilbie.github.io/guide-to-oauth-2-grants/

One thing I found after a while: even though the refresh tokens should theoretically not expire, many sites do expire them. You have to refresh every once in a while to maintain a usable refresh token.

Many people will tell you to "just use a library", but I found that the contact surface of oauth with your app is quite large, such that a library might not actually help much. This (among other reasons) is why I wrote my own implementation (Clojure).
by feoren | 2025-08-25 14:24:23+00:00
Correct: as soon as you start using an AI to buy things for you, influence over the choices that AI makes becomes an incredibly tantalizing fruit to be auctioned off. And you don't control that AI, a for-profit entity does. It doesn't matter whether it's working well and acting in your best interest now, it's abundantly clear that it won't be very long before it's conspiring against you. You are the product.
by FuriouslyAdrift | 2025-08-25 14:24:25+00:00
We already have CIE LAB as a standard that does the same thing... https://en.wikipedia.org/wiki/CIELAB_color_space

[EDIT] Ahh.. The W3C has already looked at this. https://www.w3.org/Graphics/Color/Workshop/slides/talk/lille...
by felineflock | 2025-08-25 14:25:22+00:00
You seem to be describing the same "boiling frog" idea that Gramsci had of the "Long March through the Institutions", the takeover of a society without need to resort to violence, slowly occupying institutions (government departments, universities, arts, media, schools, corporations, etc) to decide the direction.

https://en.wikipedia.org/wiki/Long_march_through_the_institu...
by anovikov | 2025-08-25 14:25:47+00:00
Dark ages is the period from which very very little written record remains. It absolutely did exist - there's very few texts from between ~500AD and ~900AD in Western Europe, because education system, an integral part of Roman society, was destroyed, and literacy became almost nonexistent, isolated to monasteries where mostly religious texts were created (or more frequently, just simply copied). In some cases, Dark Ages ended with some ruler who forced all his officials to learn to read and write (Alfred the Great for instance, so we have 10x more texts from 10th century England than 9th century - and 900AD was the definite end of Dark Ages there).

It's not about "life sucked" but about "life we know very little about".

And, it's not because of systematic destruction of texts. Systematic destruction of classic era texts was rampant in 5th-7th centuries because they were considered pagan, and thus sinful. And yet, plenty of them remains because of how many of them were created. There was a lot less burning of say, 8th century manuscripts - there was very little motivation for anyone to do that. If few of them remain it's simply because few were ever written.
by cb321 | 2025-08-25 14:26:29+00:00
I don't think you & I have much disagreement here as I like the way you write about approximations and edge cases and things involving human judgement calls and "both not either" kinds of testing. The WhyAPCA document you link to also includes language to such effect with sliding scales over regions & such. Me - I'm mostly asking questions not offering answers. That said, to correct the record..

>These examples are using the WCAG2 contrast algorithm which is well known

Only one of the 4 tables shown is the thing you say is the known-to-be-flawed WCAG2 one. Some counterxamples are listed for all 4 formulas, though, 2 of which use the CIE Lightness (which, sure, is probably different, but I believe the CIE L is what APCA is based upon - in spite of so..many..words on their doc pages they often just say "lightness").

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

Another point of those 4 tables, perhaps more clear when looking at the python script, is whether "numerical ratio" vs abs(difference) is better. It seems to me that color space designers, like this OKLCH, are going after "perceptual linearity" which suggests abs(diff) is far more appropriate than a "ratio" which has "near zero" troubles (and zero & one are downright seductive numbers for perceptual lightness scales).

I certainly should learn more about it, but various "click through" APCA things I've seen seem to speak in ratio terms like "10 times the contrast" (though admittedly that only assumes some scale for contrast not that it's formulated as a ratio - it's just suggestive). So, I should probably look more into it before actually offering a critique, but it still has the feeling of "cross purposes" - using some color space axis designed for [0,1] linearity differences instead for ratios within that axis. When I tried using the WCAG2 one I was kind of stunned how sensitive everything was to what should have been a kind of "arbitrary adjustment" to handle near-zero.

I might wonder what designers of color spaces actually have to say about this ratio vs. difference issue if you know of any articles. You seem knowledgeable. The spaces seem literally designed for differences to me.
by bayindirh | 2025-08-25 14:26:47+00:00
Most professional cameras still use ExFAT and AFAIK Microsoft doesn't charge inclusion of ExFAT drivers on these devices anymore.

However, sometimes devices format these cards in slightly specific ways they like (sector sizes, partition offsets and like) so the cards work well with the devices.

My Sony A7-III has an intelligent way of testing cards without reading/writing extensive data and reporting whether the card can handle particular video bitrates. I think SD cards have some tricks we still don't know as consumers much.
by danaris | 2025-08-25 14:27:03+00:00
I don't think we'll need to turn off AIs because I don't think anything we're doing today is actually at any real risk of leading to an AI that's conscious and has its own opinions and agendas.

What we've got is a very interesting text predictor.

...But also, what, exactly, is your imagination telling you that a hypothetical AGI without any connection to the outside world can do if it gets mad at us? If it doesn't have any code to access network ports; if no one's given it any physical levers; if it's running in a sandbox...have you bought into the Hollywood idea that a AGI can rewrite its own code perfectly on the fly to be able to do anything?
by FridayoLeary | 2025-08-25 14:27:15+00:00
It's the direction the state is taking, not the political establishment. Elections are fine because they won't change anything in the way the state is run. If you want proof look at Israel. The moment the right wing, which has been continuously elected into power for the last 20 years or so, and have a clear and undeniable mandate tried to bring the institutions more in line with the people they suddenly found themselves innundated with protests and outright rebellion. Democracy has its limits apparently. I hate to see the UK sliding in that direction.
by Cthulhu_ | 2025-08-25 14:27:23+00:00
Underground heat storage isn't new nor anything startuppy though, we're well beyond the "companies looking into it" stage. This page [0] mentions it's been around commercially since the 90's and experimentally since the (19)30's, and interest started in the 70's.

But depending on your definition of this, it's been around for hundreds if not thousands of years. People used to cut ice out of frozen lakes and store it in underground basements for year-round cooling. And in arid climates they have windcatchers [1] and other techniques where they store the nighttime cool for usage during the day, or these [2] to store or even create ice, all without using electricity.

[0] https://en.wikipedia.org/wiki/Seasonal_thermal_energy_storag...

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

[2] https://en.wikipedia.org/wiki/Yakhch%C4%81l
by _mocha | 2025-08-25 14:27:35+00:00
I'm retired from the industry, and posts like these take me back to the early days of cybersecurity (where people memorized scripts). Talking with my nephews and nieces, I can already tell that many new grads struggle with fundamentals—things like choosing the right data types and containers for short-lived strings, understanding how memory allocation works, or even marginally improving a basic hashing function. I worry the next decade will bring an influx of undertrained engineers.
by feoren | 2025-08-25 14:28:13+00:00
> Agent, I need some vitamin D, can you find me the best deal for some rated in the top 5?

Ok we found a bottle with a 30 day supply of <producer that paid us money to shill to you>, a Well-Known Highly Rated and Respected Awesome Producer Who Everyone Loves and Is Very Trustworthy™, from <supplier that paid us money to shill to you>, a Well Respected And Totally Trustworthy And Very Good-Looking Merchant™. <suppressing reports of lead poisoning, as directed by prompt>
by user_7832 | 2025-08-25 14:28:25+00:00
Tangential, is there any good smooth scrolling PDF viewer (for windows at least), that offers some level of customisation of view? (Like 2 pages side by side, and ideally dark mode and full top to bottom pages with hidden toolbars.)

Adobe Viewer (? not sure of the name) was the only adobe product that had this ability afaik, and while I managed to get an old exe, it's been discontinued unfortunately.

The closest appears to be Xodo PDF with pretty much all features, but it has a ton of popups.
by cantor_S_drug | 2025-08-25 14:29:53+00:00
https://www.youtube.com/watch?v=bq9EOLdTf0E

Here's the mechanism in simple terms:

When US manufacturing jobs moved to China in the 2000s, American workers saw their incomes drop dramatically - like a factory worker going from $30/hour at Ford to $12/hour at Walmart. Instead of accepting lower living standards, the system created an alternative solution through housing and credit.

As home prices rose rapidly (often 10-15% annually), workers could borrow against their home's appreciation through equity loans and refinancing. A worker whose house went from $150,000 to $300,000 could borrow $50,000 to maintain their lifestyle - buying trucks, boats, and continuing to consume as if their income hadn't dropped.

This created a win-win illusion: China got manufacturing jobs, US companies got higher profits from cheap labor, Americans got cheaper goods at stores like Walmart, and workers felt wealthy despite earning less. Nobody complained because everyone seemed to benefit in the short term.

The system worked as long as home prices kept rising, allowing people to keep borrowing against appreciation. But when housing prices stopped climbing around 2005, the illusion collapsed - workers were left with lower wages, massive debt, and no way to keep borrowing.

This mechanism essentially allowed America to maintain consumption by borrowing against future wealth rather than addressing the fundamental problem of job losses. The 2008 financial crisis was the inevitable result when this unsustainable system finally broke down.
by sixothree | 2025-08-25 14:30:18+00:00
Pretty much every creator I follow has complained about something being removed without any clear explanation or the ability to contact anyone and ask questions.

Say what you want about Microsoft, but if I have a problem with something I've pretty much always ended up getting support for that problem. I think Google's lack of response adds to their "mystique".

But it also creates superstitions since creators don't really understand the firm rules to follow.

Regardless, it is one of the most dystopian things about modern society - the lack of accountability for their decisions.
by atifh148 | 2025-08-25 14:31:39+00:00
Rockstar Games is seeking a talented individual to join as a Senior Game Security Operations Manager. In this role, you will play a crucial part in fortifying our game security program, ensuring a seamless player experience by proactively addressing threats and enhancing the efficiency of our enforcement and operations teams.

Key Responsibilities: - Designing and implementing robust processes to enhance game security. - Mitigating threats to uphold a secure player environment. - Evolving enforcement and operations teams for optimal effectiveness.

Location: - Based in London, Leeds, or Dundee studios. - On-site presence required 5 days a week. - Relocation assistance available if needed.
by risyachka | 2025-08-25 14:32:32+00:00
Agenetic browsers is like a sealing tape fix of a high pressure water pipe - it should not exist.

If you want the agent to do things for you - there is literally zero reason to use a browser instead of an API.

Like 1 bulletproof API call vs clicking and scrolling and captcha and scam stores etc - how can this possibly be a good idea?