MurphyA/hacker-news huggingface dataset:
by satiated_grue | 2025-07-21 17:51:41+00:00
I recall hearing many years ago about undesirable flight characteristics of the Rutan Vari-Eze when the laminar flow canard got too contaminated with bugs and became very nose-heavy.

A solution adopted by many owners was to put micro vortex generators on the upper surface, which wasn't great for the laminar flow, but maintained predictable flying characteristics irrespective of contamination.

That had potential risks, though, because the airplane was designed to have the canard stall before the main wing, which would lower the nose and prevent the main wing from ever stalling - eliminating the possibility of the stall/spin accident. Adding the vortex generators could change the aerodynamics enough to the point where the main wing could be stalled before the canard. At that point, since you have no downward-lift-generating tail surface, breaking the stall can be difficult and you could end up in an unrecoverable stable "deep stall".

Now there are cases where you can see vortex generators on both the upper and lower surfaces of some control surfaces, as on the Quest Kodiak, to provide better low-speed authority in the wing stall regime.
by someone_19 | 2025-07-21 17:52:24+00:00
> It's essentially impossible to write a Rust program without relying on many of its escape hatches like RefCell and unsafe, that make the borrow checker go away.

This is very contrary to my experience. I don't use cloning or various primitives (except when I really need the shared state).

I can assume that you have this opinion because you see it as a low-level problem while its solution lies at the architectural level.

Use pure functions, group data in structures that own it, get all the necessary data in the controller, process it, and return or store it.
by ivanjermakov | 2025-07-21 17:53:15+00:00
> TrackWeight utilizes the Open Multi-Touch Support library by Takuto Nakamura to gain private access to all mouse and trackpad events on macOS. This library provides detailed touch data including pressure readings that are normally inaccessible to standard applications.

How can something be available as a library but not as a native interface? Swift does not expose that API?
by Quarrelsome | 2025-07-21 17:53:22+00:00
I think a non-citizen should take a burner phone or clean phone and set all their social media to private before going. The risk is considerable and being placed into a holding cell for weeks or months, even when having a ticket home (as has happened to some) is a truamatic outcome.

A citizen has a question to ask, on if they want to risk being one of the unfortunate examples to create a media wave of pushback, and if so; be prepared for a tricky interview. Obviously those with children and things to do might not want to take that risk.

With all of this in mind: One might note the powerful hypocrisy of JD Vance's unexpected lecture to the governments of European allies demanding protections of free speech[0], while America's current border policy is the polar opposite of that. There's nothing wrong with being strict on people who you think are entirely intending to violate their visa but everything wrong in trying to thought-police some pretty soft ideas[1]. The tourist who was refused entry just for having that JD Vance meme on his phone seems to cross that line by quite some margin.

For me, this administration has been a huge mask slip for pretty much all the "personal freedoms" talking points of GOP politicians/voters. Its appears it was never about "free speech" but rather the dominion of their speech.

[0] https://www.bbc.co.uk/news/articles/ceve3wl21x1o

[1] https://time.com/7297472/jd-vance-meme-mads-mikkelsen-touris...
by mekoka | 2025-07-21 17:53:38+00:00
DP is a resolution technique that uses progressive (i.e. "dynamic") memoization (i.e. "programming" as in "tabulation", or resulting data stored in and retrieved from a table) as a way to curtail the cost of overlapping (i.e. intermediary and repetitive) subproblems. Memoization is a form of deterministic caching.
by philippemnoel | 2025-07-21 17:54:06+00:00
Bear with me, this will be a bit of a longer answer. Today, there are two topologies under which people deploy ParadeDB.

- <some managed Postgres service> + ParadeDB. Frequently, customers already use a managed Postgres (e.g. AWS RDS) and want ParadeDB. In that world, they maintain their managed Postgres service and deploy a Kubernetes cluster running ParadeDB on the side, with one primary instance and some number of replicas. The AWS RDS primary sends data to the ParadeDB primary via logical replication. You can see a diagram here: https://docs.paradedb.com/deploy/byoc

In this topology, the OLTP and search/OLAP workloads are fully isolated from each other. You have two clusters, but you don't need a third-party ETL service since they're both "just Postgres".

- <self-hosted Postgres> + ParadeDB. Some customers, typically larger ones, prefer to self-host Postgres and want to install our Postgres extension directly. The extension is installed in their primary Postgres, and the CREATE INDEX commands must be issued on the primary; however, they may route reads only to a subset of the read replicas in their cluster.

In this topology, all writes could be directed to the primary, all OLTP read queries could be routed to a pool of read replicas, and all search/OLAP queries could be directed to another subset of replicas.

Both are completely reasonable approaches and depend on the workload. Hope this helps :)
by dv_dt | 2025-07-21 17:54:29+00:00
On solar panel investments, at the time TSMC got into the chip game, I think most people might have said something very similar to a TSMC. Chips are commodotized, and the existing entrants are highly capitalized, and why TSMC do you think you can outdo the likes of 1987 Intel TI, Motorola, NEC et al.

Perkskovites to name one tech, will probably be a generational shift in solar panel technologies, the US would be stupid to miss it if they want to be a future world energy player outside the slow inevitable decline of fossil fuels.

For who has the stomach to fund it, there is available maybe another order of magnitude in cost performance in solar, and say two or three orders of magnitude of cost performance available in batteries?
by throw0101b | 2025-07-21 17:55:15+00:00
So there exists a 'Excel World Championship':

* https://en.wikipedia.org/wiki/Financial_Modeling_World_Cup

* https://www.cbc.ca/radio/asithappens/2024-excel-world-champi...

Can't wait for this to start having 'e-sports' tournaments. :)
by cryptoz | 2025-07-21 17:55:21+00:00
You can use any phone with a barometer to make a scale. All iPhones since the 6, and all the Pixels, and Samsung flagships have one. You get a zip loc bag, blow some air into it, put your phone in running an app that shows the pressure in a big font (so you can see it through the ziploc). Then you put an object of known weight on it like a quarter (balanced carefully on top of the air-filled ziploc) and note the pressure change on the display. With that, I think the weight / pressure change scales linearly, so you can now weigh anything small that you can balance on the ziploc.
by jackgavigan | 2025-07-21 17:55:22+00:00
We've had a serious problem with policy-making in this country for a loooooong time, stretching right back to when RIPA was drafted, nearly three decades ago.

With a few notable exceptions, the level of knowledge, expertise and understanding amongst government advisers and policy makers is abysmally low. c.f. https://jackgavigan.com/2015/11/23/how-well-advised-was-the-...
by echelon | 2025-07-21 17:55:22+00:00
Google did the correct and respectful thing.

It appears that OpenAI didn't officially enter (whereas Google did), that they knew Google was going to gold medal, and that they released their news ahead of time (disrespecting the kids and organizers) so they could scoop Google.

Really scummy on OpenAI's part.

The IMO closing ceremony was July 19. OpenAI announced on the same day.

IMO requested the tech companies to wait until the following week.
by sickofparadox | 2025-07-21 17:55:52+00:00
https://brusselssignal.eu/2025/06/german-police-mass-raids-h...

https://www.yahoo.com/news/german-woman-given-harsher-senten...

https://www.foxnews.com/media/germany-started-criminal-inves...

https://www.telegraph.co.uk/news/2023/08/10/autistic-teenage...

https://www.dw.com/en/germany-greens-habeck-presses-charges-...

Germany and the UK seem to be the worst offenders in regards to this, but that may just be selection bias on what gets into English language media. I can pull more articles if you're actually interested.
by erichocean | 2025-07-21 17:55:52+00:00
There's a version of this for testing SQL database:

You have a .sql file that contains the query and then the response is next AS SQL COMMENTS. The test runner runs the query and verifies that it matches the (comment-delimiter stripped) comment immediately following the query.

Your .sql can contain database creation, inserts, you name it.

Then you run them as part of your CI infrastructure.
by Guid_NewGuid | 2025-07-21 17:57:00+00:00
I'm originally from the UK so I know cloudy. Not sure if we're better or worse than Michigan but the weather is one of the main reasons I left.

For sure solar isn't as effective in the UK but we're lucky to have shallow sea nearby for offshore wind (onshore wind being opposed by the same kind of NIMBY clowns that are a true biblical plague in every country). But if solar is cheap enough you may as well deploy it even where it's not especially efficient. Then you can start to look at things like transmission lines or whatever energy source works best for your area.

Edit: it's a reasonable point that dollars spent in the 2nd cloudiest state on solar aren't particularly well spent, but that leaves you with 48(?) less cloudy states. While CA is pretty south there are 10 more states to the south of it, one of them is even called the sunshine state and is effectively an uninhabitable sinking swamp, ideal for solar!
by geodel | 2025-07-21 17:57:02+00:00
> For westerners, one quick thing you need to understand is that in India the written laws and constitution are totally irrelevant for day to day life

Very important point. This explains how government use slick officials talking in english to address West in language of laws, norms, civilization, shared democratic values and things like that. All the while govt sanctioned/ supported elements do exactly opposite of what they claim to be doing when talking outside India.

The only thing changed in last 10-15 years is regime getting unusually sensitive to adverse foreign media coverage. Normally they resort to economic bullying of smaller nations to not utter a word which is not glowing praise of Indian regime. But for relations with West bullying may not work or can work against India so they are left with shrill whining on social platforms against western media.
by topspin | 2025-07-21 17:58:07+00:00
I can't speak to the degree to which Raku VM ideas are being backported. I'm not that deep into Perl. I just know that the Perl 5 language itself is still regularly enhanced, and some amount (can't give you a percentage or speak to the pedigree of all the changes,) of that is inspired by Perl 6. Perl 5 now is a great deal nicer than it was, say 10 years ago, due to these updates.

Sub signatures, defer blocks, official "class", "say", try/catch, enhanced dereference syntax, new and enhanced operators, etc. Significant language changes have been and continue appearing.
by tgbugs | 2025-07-21 17:58:20+00:00
For at least the "keep secrets out of version control" I implemented a python library (and racket library) that has served me well over the years for general configuration [0].

One key issue is that splitting general config from secrets is practically extremely difficult because once the variables are accessible to a running code base most languages and code bases don't actually have a way differentiate between them internally.

I skipped the hard part of trying to integrate transparently with actual encrypted secret stores. The architecture leaves open the ability to write a new backend, but I have found that for most things, even in production, the more important security boundaries (for my use cases) mean that putting plaintext secrets in a file on disk adds minuscule risk compared to the additional complexity of adding encryption and screwing something up in the implementation. The reason is that most of those secrets can be rotated quickly because there will be bigger things to worry about if they leak from a prod or even a dev system.

The challenge with a standard for something like this is that the devil is always in the details, and I sort of trust the code I wrote because I wrote it. Even then I assume I screwed something up, which is part of why I don't shared it around (the others are because there are still some missing features and architecture cleanup, and I don't want people depending on something I don't fully trust).

There is a reason I put a bunch of warnings at the top of the readme. Other people shouldn't trust it without extensive review.

Glad to see work in the space trying to solve the problem, because a good solution will need lots of community buy-in to build quality and trust.

0. https://github.com/tgbugs/orthauth
by cbeach | 2025-07-21 17:58:30+00:00
The cost of solar panels and batteries has tumbled over the last decade, but it would still take an enormous amount of battery storage to cover weeks/months of cloud, which is common in many parts of the world.

To describe solar+batteries as "baseload" is like calling the Martingale Strategy an infinite money machine. It works brilliantly until it doesn't.
by 1vuio0pswjnm7 | 2025-07-21 17:58:35+00:00
'Star Trek' franchise an homage to humanist philosophy (2010)

https://www.telegram.com/story/news/local/north/2010/06/22/8...

"Ms. Sackett, with the aid of film clips, said that "The Return of the Archons," from the original series, was a good example of how Mr. Roddenberry employed elements of humanism in his works.

In that episode, a planet's population follows, in a zombie-like manner, a mysterious cult-like leader, who allows no divergent viewpoints.

The society absorbs individuals into its collective body and the world is free of hate, conflict and crime but creativity, freedom and individualism are stifled.

Ms. Sackett said that "Archons," like other Star Trek storylines, warns how people can be controlled by religion. In the end, the viewer discovers the cult leader is actually a computer."

"[N]o divergent viewpoints" sounds like Stackoverflow and forums run by software developers in general. The behaviour of "developers" can be extremelly cult-like.

Creativity, i.e., new work that is not comprised of a recombination of old work, does not seem compatible with "AI". The later relies on patterns found in old work.
by adaptiq | 2025-07-21 17:58:57+00:00
Thanks for checking out AdaptiQ!

Here’s what’s next in the coming days:

Today: AdaptiQ Core (what you see now) – CLI-based prompt/agent optimizer – Reinforcement Learning loop (offline Q-table) – Token/cost/CO₂ tracking per run – Markdown + badge reporting – Works with CrewAI + OpenAI (GPT-4, GPT-3.5)

Next Week: AdaptiQ ACE – HTTP Proxy Edition – Drop-in FinOps proxy for Claude, Gemini, GPT – Rewrites prompts on-the-fly – Tracks latency, compile pass, retries – GitHub Action: block PR if cost/test fails – RL reward = quality − β·tokens − γ·latency

What we’re solving: > Agents fail silently, burn credits, drift from style guides. > AdaptiQ gives your LLM prompts a feedback loop.

We’re building this in the open: roadmap, CLI, and future trace-spec are all public.

Questions? Feedback? Want support for LangChain / Autogen / Mistral? Let us know below – we’d love to expand!

Also: if you drop your prompt logs (token usage + outcome), we can pre-train the Q-table for your setup.

Cheers – Wassim / AdaptiQ team
by lisper | 2025-07-21 17:59:03+00:00
Sure. So? That doesn't mean that the conscious part (such as it is at that point) is teaching the unconscious part. You could actually test this by asking a two-year-old who knows how to walk to teach walking to a one-year-old with rudimentary language skills but who can't walk yet. I'd be very surprised if this intervention speeds up the rate at which the one-year-old learns to walk.
by rcktmrtn | 2025-07-21 17:59:18+00:00
> This is less historical record than medieval propaganda piece

I think you could make a good case that the title is a little sensationalistic, but you could pick at US civics class in exactly the same way (and not just in recent history). The branches of government we learn about fail to include (or at least emphasize) the fundamental role of regulatory capture, lobbyists, and opaque/undemocratic three-letter agencies in real-world governance. Not to mention the fact that even the founding of the country was based on high ideals that were highly caveat-ed ("all men are created equal" unless those men are property).

Regardless of the extent to which ideals are lived out in practice, to many people it's notable that those ideals are there at all. In my experience as a US citizens, most people educated here seem shocked to learn that there can be any ideals behind monarchy besides divine right of kings/"I am the state" [1].

[1] https://en.wikipedia.org/wiki/L%27%C3%89tat,_c%27est_moi
by breadwinner | 2025-07-21 18:00:12+00:00
> In 1986 the successor to SunView was developed, the Network extensible Window System, or NeWS.

SunView with NeWS was a powerful 2D graphics engine. It ran Adobe Display PostScript. The Sun workstations ran BSD unix, had good networking, protected memory, virtual memory and so on. And it did all that with 16 MB of memory. That's not a typo... 16 megabytes. Today our computers have 1000 times more RAM, but do our computers work better? Hardly. The NCD terminals from 1990 worked just as well as Chromebooks today. What have we accomplished in the last 35 years? Computers back then weren't powerful enough to play movies. Other than that I can't think of much I would miss if I had to go back to the old NCDs.
by matwood | 2025-07-21 18:00:51+00:00
There's a reason people flock to the coasts. I grew up in the deep southern US. It was hot and humid, but we spent all day every day outside. We either went to the beach or played in the river. You just get used to the heat. We barely had AC until I was 15 or so and we could afford a house with central HVAC.
by madaxe_again | 2025-07-21 18:00:52+00:00
Sure you can. You can get a 5kva inverter/charger from victron for about €800, and pylontech lifepo4 batteries will set you back about €200/kWh with 5kwh units. Panels are now so cheap as to be negligible in price.

15kWh of storage, which is plenty to run AC, a fridge, and plenty else overnight, would be €3000. Call it €1200 for 7kw of panels and mounting gear, which you could just about cram on your roof assuming a full sized RV, and you’re looking at €5000 all in.

I live totally off grid, and admittedly have 30kW of panels and 75kWh of storage, but we also charge the car, cook, heat, cool, and all the rest off of it. Battery prices have dropped precipitously over the last five years - our original OPzS lead bank is a joke compared to the lithiums I can now just chuck in on pretty much a whim.
by sokoloff | 2025-07-21 18:01:04+00:00
??

I'm using those six quoted terms to have a meaning the same as what Google returns as the first definition for five and the second for one (which I think is obvious to all readers from context):

"functioning market" - A functioning market, in economic terms, is a system where buyers and sellers can freely interact to exchange goods and services, with prices determined by the forces of supply and demand, and where information is readily available. A well-functioning market is characterized by competition, efficient resource allocation, and the absence of significant barriers to entry and exit.

"sustainably" - 1. in a way that can be maintained at a certain rate or level.

"flooding" - 2. arrive in overwhelming amounts or quantities. I posit that no one was confused and thought I meant "1. the covering or submerging of normally dry land with a large amount of water."

"ideally" - 1. preferably; in an ideal world.

"quality" - 1. the standard of something as measured against other things of a similar kind; the degree of excellence of something.

"scarcity" - 1. the state of being scarce or in short supply; shortage.
by tetha | 2025-07-21 18:01:22+00:00
Off-topic, but why is these no scrollbar on the transcript in firefox? I smacked my keyboard and now I've lost my position and it's going to be a pain to find it again.

Besides that, I was going to note: Yes, solar isn't necessarily great in northern Germany and further north. But us and the Scots and the Brits have one super-power up our sleeve: Shitty weather made of rain, wind and misery. Meaning, we put up wind turbines up here. We got like 33% of our power from these turbines over 2024 and apparently, expansion of wind capacity in 2025 is happening very quickly.

It's somewhat amusing, because the amount of wind power and planned offshore wind capacities are currently forcing rather large infrastructure projects to move all of this power south. My parents are living right next to where Nordtrasse A-Nord is going past. That is a _huge_ construction site.
by EvanAnderson | 2025-07-21 18:02:10+00:00
Thanks for that link.

It's absolutely wild to think about a suite of software this sophisticated that exists outside the realm of Unix, Windows, or any of the long-term players in the embedded networking device market. I know there are boutique embedded IP stacks out there but it still boggles my mind that a small company like this has had sufficient revenue to keep up with the "churn" in the networking space for 20+ years w/o leaning on free/open-source software.
by standardUser | 2025-07-21 18:02:22+00:00
> We devote more resources to catching child abusers.

You make this statement but provide no evidence. Because there's laws on the books, we "devote more resource" than, say the entire DEA, which unlike these laws has a gargantuan budget? That's nonsense.

> I see no particular reason to believe that additional resources would lead to a noticeable increase in detections.

Look harder? Read up on the topic? String operations work. More would work more often and catch more abusers.

Let alone the resources we could be pouring into children's mental health services (instead of kicking families off health insurance like the current administration has accomplished).
by BillyTheMage | 2025-07-21 18:02:28+00:00
> You can almost imagine it sobbing in between sentences, can't you?

No, that's not the image I had in my head. My head canon is more like:

"Oh wow, oh no, oh jeez (hands on head in fake flabbergastion) would you look at that, oh no I deleted everything (types on keyboard again while deadpan staring at you) oh noooooo oh god oh look what I've done it just keeps getting worse (types even more) aw jeez oh no..."

Reminds me of that Michael Reeves video with the suggestion box. "oh nooooo your idea went directly in the idea shredder how could we have possibly forseen this [insert shocked Pikachu meme]"

The AI thinks it's funny