MurphyA/hacker-news huggingface dataset:
by sky2224 | 2025-08-03 19:13:04+00:00
I think the idea here is that your first approach is what you think is correct. However, there's a chance the model is just outputting text that confirms your incorrect approach.

The second one is a different perspective that is supposed to be obviously wrong, but what if it isn't actually obviously wrong and it turns out that the model is outputting text that confirms what is actually the correct answer for something you thought was wrong?

The third one is then a prompt that pushes for contradiction between the two approaches you propose to the model to identify the correct answer or at least send you in the correct direction.
by exasperaited | 2025-08-03 19:14:18+00:00
He was jailed for four years in 2019 and seems to have spent two years in Wandsworth Prison, which is a category B prison.

Since it'd be shocking if he didn't get out as early as sentencing allowed (which is two years and a bit basically) I guess he will perhaps have served some time in an open prison and then been released.

But he may have gone straight to release due to the pandemic.

These people were used as scapegoats for something maybe half the people on certain early morning trains into Cannon St every morning would have known was probably happening.

One day just after Lehman collapsed I got chatting to a very stressed-looking guy on said train back from London, who was drinking wine from a small bottle, and he asked me if I was in finance, I said no. He said "well that's good, because if there's not enough support from the government, almost everyone on this train will lose their job."

He then asked me if I knew what LIBOR was. I did, because I studied economics at school. I explained and he was impressed; he said that outside of London almost nobody had any idea. He said "watch out for it in the news". But I already knew what he meant because even at school it was obvious what the potential problem with LIBOR was in situations like this.
by babyshake | 2025-08-03 19:14:46+00:00
Is the only/main use-case for this being that you are trying to do some type of SEO or marketing? Why else would you intentionally want your chats to shown in web searches?

It does seem like this UI should be updated with an extra confirmation step warning you that your chat will be public and this should be thought of as a permanent decision as anything made public on the web long enough to be indexed is public forever.
by throw123xz | 2025-08-03 19:15:02+00:00
You're mixing different problems and clearly have no experience driving or owning EVs.

> You can't charge them within five minutes like you would load up a traditional car.

Nothing to do with reliability.

> Battery starts to lose range. Even more so in extreme temperatures.

Yes, you lose ~20% of range if it's snowing or very cold. Is this a reliability issue?

> Battery replacement is super expensive. In that amount you can get your engine rebuilt multiple times over.

It is very expensive, but batteries are not failing. Again, we now have 10-15 year old cars on the road without battery problems.
by yason | 2025-08-03 19:15:42+00:00
It's still kind of all relative.

There's a lot of criticism by the local people against Helsinki being too car-friendly. Pedestrian crossings deemed dangerous being simply removed rather than putting traffic lights to tame the cars instead. Large multi-lane roads right outside the densest city centre. Too much space allocated for cars vs pedestrians and other light traffic in the city centre area where the latter outnumber the former by 10x.

The only thing that directly supports the zero-death record is the lower speed limits. They used to be 50 km/h some decades ago, then most of the city centre was lowered to 40 km/h and now in the last 10-15 years there's been a proliferation of 30 km/h zones all over the dense areas where there are a lot of pedestrians. This is absolutely good, and given traffic and red lights the average speed was less than that anyway -- it's just that now the drivers no longer have that small stretch of road to accelerate to high speeds towards the next red lights.

In the centre, lower speed limits are perfect. Helsinki could've reached zero deaths earlier too if it wasn't for some random truck making a turn and running over a kid or something (I think that was the one traffic death in the previous year, or the one before that).

I'd still like to see fewer square metres allocated for cars, elevated pedestrian crossings, roads with less lanes (you can turn 4 lanes into 3 with bike lanes both ways).
by Taikonerd | 2025-08-03 19:16:03+00:00
I had this thought recently: "different hospitals have different workflows, and they want to see different stuff in the UI. But obviously they all want domain objects like "a patient," "an appointment," etc. Some company should offer a standard backend, and a starting template for a frontend that each hospital can customize however they want."

It turns out that concept is called "Headless EHR," and it's pretty new.[0] Medplum (that the parent comment mentions) is one of the companies in this space.

[0]: https://healthapiguy.substack.com/p/to-ehr-or-not-to-ehr
by elmerfud | 2025-08-03 19:16:05+00:00
I think the message is quite easy to understand as it's written but maybe that's not the message you want to convey. The message you're conveying makes no logical sense and doesn't seem to have any basis in testable scientific methodology. Your writing style is that of a "science communicator" and not a scientist proposing a hypothesis. As most science communicators, so much gets lost and because you have no actual scientific references it comes across as pseudoscientific nonsense with no backing whatsoever. You say the same equations work but failed to show it and failed to show it at the extremes. If the same equations work then you also have to ask yourself are you describing something different or just plugging in different values? Also I have my doubts that the equations actually work since you say that there is no speed limit. The speed of light is something that is fairly well understood. It's a measurable thing The time dilation that comes with it is also a measurable thing. Your last paragraph says there is no speed limit which would break all of the equations.

If you understand what scientists are saying, no one is saying that dark matter got removed from the universe. The inability to detect something does not indicate that it is not there it only indicates that we have not found a way to detect it, but it's effects are clearly measured so a term is given because it is unknown what it is I mean.

These terms of dark matter and dark energy have been seized upon by "science communicators" which oftentimes poorly explain complex topics. Then their poor explanation is seized upon by others and the understanding gets further diluted down.

There was a time when black holes were this spooky thing as well that were poorly understood. Astrophysicist could clearly understand that something was there that they could not understand or comprehend but they could measure the effects of it. Given time they were able to clarify it and come up with theories to explain it. This is the state we are in with dark matter and dark energy. These are terms given to something that they know is there because all of the evidence points to something being there but they have no ability to detect it other than to see it's effects on other things.

Without you putting together some hypothesis that can then be tested and verified independently what you have is sci-fi technobabble. It can be the basis for interesting storytelling like in the movie Black hole or Interstellar, but it's nothing more than fictional dreaming.

Honestly, string theory is more plausible than anything you've proposed.
by harmmonica | 2025-08-03 19:17:00+00:00
When the north rim lodge recently burned down at the Grand Canyon my reaction was "how could they not deploy resources fast enough to save it?," followed by "who stands to gain from it burning down?" So I learn Aramark is/was the manager of the lodge. Fast forward a year and you'll hear about a joint venture between Aramark, someone high up in the current administration, and (as an example) Aman announcing Aman North Rim.

That's obviously conspiracy-level thinking and totally untrue, but given the attempt to sell public lands in the BBB, and the material staffing cuts at the park service (and more broadly), it's really easy to believe that these types of efforts will lead to cordoning off these spaces for private profit ("Yosemite's hundreds of thousands of acres, we're only taking away 20 for the hotel, no biggie!"). Gotta remain vigilant or I think that's where all of this ends up.

Note that the prices for the lodge at the north rim were pretty expensive already so not saying that hasn't already somewhat been the case, but it's not (or was not) physically off limits to the public or only reserved for the richest of the rich and that's where I fear this is headed.
by ars | 2025-08-03 19:17:17+00:00
UN reports aren't useful for journalists because they are basically popularity contests between countries. The information in the report mostly just reflects the interests of the country preparing it, or who has a majority seat on the particular group it's being prepared for.

They are not like research studies where truth is the objective.

Diplomats care about it, as a kind of quiet "game of thrones" as it were, no one else cares.
by didip | 2025-08-03 19:18:09+00:00
I am far from being a Mathematician, but can't AI shop create an acceptable control model and then measure the cosine distance between the current model and the control model?

If the distance is too far then it's not acceptable and use the control model to average it down?

Also, isn't this similar technique as managing hallucination? (If you have an acceptable control/baseline)

Then again, I am not a Mathmetician so I don't know the details.
Ask HN: Do personal projects feel less fun with LLMs?
by scripper | 2025-08-03 19:18:12+00:00
I used to spend a lot of time tinkering with personal projects. I don’t think I realized how much of the fun was due to: 1. Solving puzzles, and 2. Feeling that I was helping myself in the future by solving a problem today. LLMs make it a lot quicker to complete a task or project. Does this make anyone else feel less motivated to do projects? Has your approach evolved?
by SoftTalker | 2025-08-03 19:18:19+00:00
It’s also strange to me that every time I go to the doctor I have to sit and fill out forms like I’m a new patient. All my insurance info, again. My entire medical history, again. Consent agreements, again. This experience hasn’t changed in decades, and I don’t understand why.

I’ve asked, why do you need all this again and the answer is usually “oh we have a new system” or “we need to know if anything changed” (but that’s not what the forms ask).
by nunez | 2025-08-03 19:18:28+00:00
This is not wasted money. The article fails to take leisure travelers and airport economics into account.

Us seasoned travelers are very comfortable being in airports and airplanes. We have no problem with getting to our gate as boarding is happening because we (a) usually travel alone, (b) have acquired a really good gut feel for the amount of time it takes to get to the gate and (c) have CLEAR and TSA Precheck or similar security programs to move through security rapidly.

Most Americans only travel by plane once or twice yearly. It doesn't look that way in an airport, but that's the magic of large numbers at work. Those travelers don't have any of these advantages. Many of those people travel with families, and everyone with kids knows how big of a job traveling with kids is. Many people also don't know how to transit through security, given how little they travel. They need the three hours.

Modern airports are built around this, like the article describes, but this is also what people _want_. Many people praise how luxurious some international airports are, especially when compared to ones in the US. Them serving as lush shopping malls is a big part of that.

Airport spending is also a huge economic driver for cities. So many taxes get shoved into purchases at airports and rental cars. Cities aren't going to just give that revenue up.
by rckt | 2025-08-03 19:18:46+00:00
Location: Remote Remote: Only remote Willing to relocate: No Technologies: Frontend, a bit of full-stack Résumé/CV: https://rckt.cc/me Email: mail@rckt.cc

I'm an FE dev with plenty of experience. Check out my website. UI/UX oriented, can switch to full-stack if required.
by technothrasher | 2025-08-03 19:20:27+00:00
The stories aren't all that interesting. I met Sagan at a talk about SETI that he gave in, oh, it must have been about 1981, at the MIT Haystack observatory. He did a meet and greet session after the talk, and was very gracious. Randi, I met in 1990 when he gave a talk about skepticism at the University of Rochester. Like Sagan, he had a meet and greet afterward. He was very quirky and funny.
by boroboro4 | 2025-08-03 19:20:33+00:00
The current market cap of Figma is around 60B if I read it correctly. Yes, not all of it was IPOd, but from purely this perspective it was hugely successful. But then it’s also unfair to compare this market cap as is, because I would expect Figma as separate entity will grow better than Adobe as a whole. Meaning that people who’ll hold Figma stocks right now have a chance to have better returns in a future.
Show HN: Mcp-error-formatter – Cursor-style JSON errors for any MCP/LLM tool
by MutedEstate45 | 2025-08-03 19:20:34+00:00
Hi HN! Author here.

When an LLM-powered tool call blows up, the model usually sees an opaque stack trace. It can’t tell whether to retry, give up, or suggest a fix, so users get “Something went wrong” or infinite retry loops.

Cursor’s editor solved this by wrapping errors in a small, structured JSON envelope:

``` Request ID: c90e… {"error":"ERROR_USER_ABORTED_REQUEST", "details":{"title":"User aborted request.", "isRetryable":false}, "isExpected":true} ```

That single structure lets the agent reason correctly (“don’t retry; the user cancelled”).

I wanted the same behavior in standalone MCP servers and LangChain tools, so I extracted it into a tiny package:

``` npm i @bjoaquinc/mcp-error-formatter ```

```ts import { formatMCPError } from "@bjoaquinc/mcp-error-formatter";

export async function githubTool(args) { try { const data = await github.repos.get(args.repo); return { content: [{ type: "text", text: JSON.stringify(data) }] }; } catch (err) { return formatMCPError(err, { title: "GitHub API failed", isRetryable: true, // optional flags }); } } ```

* Supports both structured and unstructured content * Zero deps (aside from `uuid`), \~3 kB min+gzip * Adds `isRetryable`, `isExpected`, `errorType`, `requestId`, and free-form `additionalInfo` * Returns a standard `CallToolResult`, so it slots into marimo, LangChain, FastMCP, or plain MCP SDK * Apache-2.0 (OSS)

Repo: [https://github.com/bjoaquinc/mcp-error-formatter](https://github.com/bjoaquinc/mcp-error-formatter)

I’d love feedback on the format, naming, or edge-cases I’ve missed. PRs and issues welcome—happy to iterate.
by whyenot | 2025-08-03 19:21:17+00:00
> However, until people would rather camp than stay at the $600/night hotel, and cook over a campfire rather than eat overpriced food

I think this borders on "gatekeeping." There are other lodging options in Yosemite Valley which are much less expensive than the Ahwahnee. Yosemite belongs to the American people, and everyone should have a chance to enjoy it, not only those who want to sleep in a tent and cook on a fire. There has been paid lodging in the valley since before Yosemite was a park.

Food and lodging in the valley are expensive. The shuttle bus system is currently a joke. Aramark, Delaware North, and YP&CC (especially in the malaise years 1970-1993) have not always been good stewards, but in spite of that, the park is a national treasure that all should have a chance to enjoy, not just those in the "rock climbing scene" who want to stay at Camp 4 and rough it.

Aramark's contract should be cancelled. It happened at Crater Lake, and the NPS would have justification to do it in Yosemite, but the last two transitions between concessioners was pretty bad; there is good reason for the NPS to be cautious. If there was the capacity for better NPS oversight, the best move would probably be to break up the contract into smaller pieces and have more than one main concessioner. The Ansel Adams Gallery and Yosemite Mountaineering School are already under different contracts and there is precedent from other national parks (for example Glacier).
by aetherson | 2025-08-03 19:21:26+00:00
Suppose that you have an opportunity to play a game. The game is you roll a fair normal six sided die. If it comes up a 6, you get $60B. If it comes up a 5 or 4 you get $30B. If it comes up 3 or less, you get $0.

This is clearly a valuable game! It is worth in expectation $20B. But it also has a 50% chance of being worthless to you.

Someone offers to buy it from you for $20B. You agree, giving up some upside for some downside protection.

But then someone else says that's not allowed. So you play the game and you roll a six and get $60B.

Does that prove the person who made you play it rather than sell it was "right," ex ante?
by Sophira | 2025-08-03 19:21:44+00:00
The thing that ties cracking to the demoscene is that, as Trixter/Hornet states in the excellent documentary "Demographics: Behind the Scene"[0], copy protection itself is a creative process; you need to think about how the hardware works.

For example, one of the earliest copy protection methods - and one that still underpins a lot of today's copy protection - was to include intentionally-bad sectors on the floppy disks that you shipped. That's not something you'd normally even consider - why would you ever want to have intentional errors? And it makes even less sense to the non-creative mind when you consider that you can't just "write an error" - that's not how the common abstractions for disks work, and hardware is normally built in such a way that it's difficult to intentionally introduce an error. You actively have to go out of your way to misuse the hardware capabilities available to you in order to do so.

However, that very same difficulty in "writing an error" is also what made it such an effective copy protection method! Any traditional disk copying program would consider an error to be proof that your disks were corrupted, and many wouldn't even continue past the point of the error because it could lead to disk thrashing. Meanwhile, because you had much more control over the hardware back then than you do today, the copy-protected program could actually use the floppy disk controller directly to put in its own tests for detecting an error in a particular spot, such as reading the same sector multiple times and seeing if it got different data, or perhaps even by measuring the flux directly, and only proceed with the program if the error is there as it expected it to be.

You can't do these things using the standard INT 21 calls that DOS gives you, or even through the BIOS. (Actually, for many years PCs were considered useless for demomaking compared to other platforms such as the Amiga.) Finding a solution like that takes a creative mind - and conversely, so does working out how to defeat it. You have to know what your hardware can and can't do, or you have to work it out through experimentation. And as it turns out, you had to have exactly these same skills if you wanted to be able, say, do 3D on a system that has no floating point processor, or to be able to draw 4096 colours simultaneously, or to be able to arbitrarily draw to the overscan area of the screen, or any of the other things you might be able to figure out and want to show to the world what your chosen platform can do. And thus, cracktros were born.

[0] https://archive.org/details/Demographics_BehindtheScene
by corimaith | 2025-08-03 19:22:14+00:00
I don't think America has been innovating much since 2015. And the Chinese are managing fine or even better without these.

There's an argument though that the sheer prevalence of these talent programs institutes a sort of "institutional capture" over innovation. It works for those who are recognized it, but these also soon become requirements to more prestigious facilities. Which leaves those whose interests are not so recognized with increasesd barriers to realizing their visions.

The pure exam systems are somewhat more holistic in that manner, after that single barrier there is a greater degree of freedom in heterogeneity.
by throwup238 | 2025-08-03 19:24:13+00:00
> I wonder, after 500 years, after 1000 years of industrialization, what will be left of Earth?

In the last 150 years we went from almost zero protected areas to 26 million sq km of nature preserve, or a fifth of the Earth’s total landmass (excluding Antarctica, which is also protected). Out of the ~106 million sq km of habitable land, half of it is unprotected forest (37%) and shrubland. Only about a third of that forest is used for lumber so there’s room to protect about thrice as much as is already protected.

We have to remain vigilant but the global zeitgeist is very much on the side of preserving more nature rather than less. There will be more hickups but I wouldn’t be surprised if we double the amount of protected land in the next 100 years.
by aspenmayer | 2025-08-03 19:24:26+00:00
I’m pretty sure this is the report where they mention download numbers of UN reports, since Reuters buried the lede by not linking to it themselves:

https://digitallibrary.un.org/record/4086174

I’m sure that they mention it in the report, and it is one of the UN80 reports, but I can’t be sure that it’s the one Reuters means, or that it’s the only UN report on this issue.
by simianparrot | 2025-08-03 19:25:01+00:00
Reducing the window for eating to 8 hours reduces total caloric intake naturally. I never said it was a "hack". Your linked article explains precisely why intermittent fasting is effective under the heading "The state of ketosis"; when it says "has a similar or even modest benefit over traditional calorie-restriction", that supports what I've been talking about, surely.

And cardio burns calories, sure, but have you tracked your caloric burn when exercising? You can't really do active cardio to burn more than you eat -- not without going into a deficit you have to earn back later. Ketosis isn't as fast as breaking down carbohydrates, so you're right, you don't want to do fasted cardio, usually, unless it's very restricted -- or you load up on carbs via a smoothie or something similar high-availability. I do brisk (~110 bpm average) 30 minute walks during the fasting window early in the morning, but that's about the limit.
by frotaur | 2025-08-03 19:25:15+00:00
How do you know which question should be answered with 'I dont know?'. There are obvious questions which have no answer, but if only those are in the dataset, the model will answer I dont know only for unreasonable questions.

To train this effectively you would need a dataset of questions which you know the model doesn't know. But if you have that... why not answer the question and put in the dataset so that the model will know ?

That's a bit imprecise, but I think it capture the idea of why 'I don't know' answers are harder to train.
by jama211 | 2025-08-03 19:25:45+00:00
Lol yep. Our company decided “sprints” were now to last 4 weeks, but there’s also no task scheduling, no retro, no sprint planning… just tasks get given whenever they come up based on what they feel like.

So… what’s the point of a “sprint”? We don’t even do monthly releases. It’s hilarious.

I suspect we do “agile” in name only so they can pretend to the board that there is a system at all.