MurphyA/hacker-news huggingface dataset:
by parsimo2010 | 2025-07-27 03:32:25+00:00
Garmin charges an extra $1275 for their G5 instrument if you’re putting it in a certified aircraft vs a light sport. $1850 vs $3095. I’d call that a compelling cost advantage.

FADEC means one less knob the pilot had to worry about in flight and one fewer item on the landing checklist. Probably not a massive performance difference, but I’ll call the sum of the marginal fuel efficiency and engine longevity gains along with the additional safety reduced cognitive load a compelling advantage overall.

Cheaper, modern three axis autopilots are compelling. Repeat this exercise twenty more times with areas all over an airplane and you make a huge difference. Cheap planes aren’t going to swamp the market overnight, just like most of the original LSAs were over $100k when they first came out. But a $100k LSA sure was cheaper than a new SR20 or C172. But they trickled in, and now you can buy a few year old LSA at a decent price. The new crop will start to trickle in over the years too and maybe I’ll be able to afford one when I’m at retirement age.

You’re right about the reduced training standards, but doing it with the old light sport pilot restrictions didn’t cause a massive increase in incidents, so maybe this won’t be that bad. If you fly around rural airports you’ve already been flying around sport pilots and people on BasicMed for several years, so you would have already seen the difference.
by musicale | 2025-07-27 03:32:53+00:00
How do CZ gemstones compare to diamond gemstones visually/in person? It looks like CZ has a lower refraction index but higher color dispersion vs. diamond, so that seems like it would still result in an attractive gemstone. The main disadvantages seem to be slightly lower refractive index (so less internal reflection and brilliance?), lower hardness (disadvantage for the gem getting scratches - possible advantage for not scratching your sapphire glass watch or smartphone camera lens?!) and higher weight.

edit: seems that moissanite (silicon carbide, perhaps unsurprisingly) is another diamond-like (though hexagonal crystals vs. cubic for diamond or CZ) gemstone that is actually harder than sapphire and less prone to fracture than diamond.
by kjellsbells | 2025-07-27 03:34:06+00:00
(I'm sure this is lovely Bash, but for all the people who rejected Perl for its modem line noise vibe...what do ya think of this?)

As an aside, I actually wonder if Bash's caller() was inspired by Perl's.

There is also Carp and friends, plus Data::Dumper when you not only need the stack trace but also the state of objects and data structures. Which is something that I don't think Bash can really do at all.
by anal_reactor | 2025-07-27 03:35:27+00:00
Sir, this is Wendy's.

I have a feeling that the core issue is that author is trying to implement complex communication mechanisms with a tool that was designed for much more basic usage. I don't understand why half of the article is about cancellations while cancellations as a concept are wrong. Have you ever tried to cancel peeing mid-pee? It just doesn't work.

Not sure if the other half of the article is worth reading if first half has completely wrong premise. Or does this guy live in some utopian future where it's reasonable to assume that everything can be cancelled at any point.
by igregoryca | 2025-07-27 03:35:46+00:00
> the sync/async function coloring nightmare

I'm with you that function "coloring" (monads in the type system) can be unergonomic and painful.

> ... isn't that what Go is? I think out of all languages I use extensively, Go is the only one that doesn't suffer from the […] coloring nightmare.

Because it doesn't have Future/Promise/async as a built-in abstraction?

If my function returns data via a channel, that's still incompatible with an alternate version of the function that returns data normally. The channel version doesn't block the caller, but the caller has to wait for results explicitly; meanwhile, the regular version would block the caller, but once it's done, consuming the result is trivial.

Much of the simplicity of Go comes at the expense of doing everything (awaiting results, handling errors, …) manually, every damn time, because there's no language facility for it and the type system isn't powerful enough to make your own monadic abstractions. I know proponents of Go tend to argue this is a good thing, and it has merits. But making colorful functions wear a black-and-white trenchcoat in public doesn't solve the underlying problem.

(goroutines are nice, though.)
by kstrauser | 2025-07-27 03:35:54+00:00
I’m bracing myself for the response, but.

Rust.

Yes, it clearly has a sharper learning curve than Python. But I think idiomatic Rust feels a lot like a good Python implementation of the same thing would, in ways I can’t quite explain. The borrow checker is certainly something to come to grips with, but it also nudges you to write code the way you should probably be writing it anyway. Don’t pass complex structures around and mutate them everywhere. Don’t return 5 kinds of object from the same function. Don’t go crazy with inheritance vs plain, understandable, testable functions.

Rust just feels right to my Pythonista brain.
by danans | 2025-07-27 03:36:49+00:00
> This is an excellent way to solve the housing crisis in San Francisco: sarcasm fully intended.

At least for new dwellings, building without gas piping is _cheaper_ than building with it. It's very cheap to run additional 240V/60A lines from the load center to the kitchen and laundry/utility room.

Depending on the renovation, it can be even cheaper to go all-electric, for example, if the kitchen/laundry/heating is being moved.

However, renovations don't have much effect either way on the housing affordability crisis in San Francisco, because renovations don't generally increase housing capacity. Most renovations in SF are done for the purpose of converting existing lower end homes into higher end homes.
by tomhow | 2025-07-27 03:36:54+00:00
It was put into the second chance pool by an editor (https://news.ycombinator.com/pool, explained here https://news.ycombinator.com/item?id=26998308).

HN isn't just for tech, it's for anything that satisfies intellectual curiosity. It's not always obvious in advance what will turn out to satisfy intellectual curiosity, but if a good discussion develops, that ends up being the most important signal.
by apparent | 2025-07-27 03:37:04+00:00
I think it reached a tipping point. It used to be that there wasn't much of a cost advantage, so people assumed you bought the real thing. Now that the lab-made diamonds are super cheap, many people will assume you bought one of those. When that's the case, people feel like they might as well buy the cheaper ones. It's like people buying natural mined diamonds are chumps. No one will know you spent more unless you talk about how it's natural (and that makes you annoying).
by egranata_aria | 2025-07-27 03:37:26+00:00
Good news is I can offer you parentheses, but they are indeed optional on conditionals/loops. I am fairly sure there are other C-style syntaxes that leave those out. See https://stackoverflow.com/questions/2061593/why-do-c-languag... - you can't have the same ambiguity if you have mandatory braces around the body. Would there be a reason to require them?

With that said, this will work just fine and you wouldn't have to think about it too hard, if at all:

func main() { if (1 == 2) { println("oh no!"); } else { println("phew!"); } }

On the more general point, why this vs. anything else? That's a great question. I have tried to hit a balance that I think is pleasant to write code in (e.g. I like not having __init__.aria files around to define modules :-), and I like having proper enums, and so on...). I like to think someone would pick up Aria because it is a fun little language to try out and experiment with, not because it would change the world.

Mileage may of course vary and you may think that balance is actually nowhere to be seen. That's great, hit me with it.
by daft_pink | 2025-07-27 03:41:21+00:00
The reality is that personal aviation doesn’t make sense because the range of an cheap aircraft just isn’t very high so you’re not gonna fly from New York to California on an aircraft under $1 million dollars brand new and you’re certainly not gonna fly internationally. How can you spend so much money and so much time getting your pilots license for a plane that only will get you 500 or 600 miles effectively. Most people who can afford a six figure aircraft wanna fly much longer distances than they are able to fly.
by manquer | 2025-07-27 03:42:36+00:00
Flash Apps hosting which was Facebook did then was not ground breaking at all, There were many other competing flash hosting sites .

The killer thing others couldn’t do Facebook did was make available social APIs for the app developers to integrate into their platform to make the apps viral, which benefited both them and Facebook.

OG PaaS in the Web 2.0 age IMO was the google app engine , it predated all AWS offerings and gave an actual application runtime .
by BrenBarn | 2025-07-27 03:42:59+00:00
It's not clear to me from this article or from the census page whether this definition of vacation homes includes residential units rented out via AirBnB or the like. But the numbers seem to suggest it doesn't, since some data ( https://insideairbnb.com/los-angeles/ ) says that, for instance, Los Angeles has 45k AirBnB listings while the article claims only 14k vacation homes in LA.
by edm0nd | 2025-07-27 03:44:35+00:00
Yeah the explosion of the internet has allowed some conspiracy schizo person in the US to connect with another schizo conspriacy person across the world in Moldova to quickly find each other online and then confirm each others schizo beliefs.

Believe in flat Earth? Are you a holocaust denier? Think the moon landing is fake? Is the government gang stalking you? Welp you are in luck, there's thousands of other people just like you and here is a forum.

Kinda wild when you think about it.
by dreamcompiler | 2025-07-27 03:47:03+00:00
> Basic things like fuel injection

Don't get me started. It's virtually impossible to buy a car without fuel injection nowadays, but most GA airplanes still use carburetors. And these are vehicles that are constantly changing altitude, so carburetors are even more unsuited for airplanes than for cars.

Okay I lied. You can buy fuel injected engines for airplanes. They are readily available. They merely cost 2x or 3x the price of carbureted engines.
by kortilla | 2025-07-27 03:48:18+00:00
Arizona was the worst possible example. It has the lowest ratio of people per pool in the county. Additionally, pools are far more dangerous for children than the coasts because they are sitting right there at home ever present waiting for you to relax and lose track of the kids.

Setting those aside, the canals for irrigation are more dangerous than rivers. The southern half is also filled with dry riverbeds that turn into raging rivers in storms. Finally, Phoenix itself has something like 4 lakes within an hour drive and the salt river that people float.

The heat of Arizona makes water recreation a huge part of life.
by ghushn3 | 2025-07-27 03:49:14+00:00
I don't think those are orthogonal.

Natural diamonds are more expensive, and they therefore have a conspicuous consumption element to them. That could be valuable as a means to gain social cachet. Except you'd have to speak loudly about how they were natural.

And in doing so you are loudly proclaiming you don't care about human suffering it took to get the diamonds. That's probably fine in very wealthy circles, but in upper middle class/upper-upper middle class circles, it's likely quite gauche.

If the natural ones didn't have this faux pas attached to them by default, then they might carry more interest as a "I saved up for these" class indicator.
by supermdguy | 2025-07-27 03:50:41+00:00
Interesting work. Not super familiar with neural architecture search, but how do they ensure they’re not overfitting to the test set? Seems like they’re evaluating each model on the test set, and using that to direct future evolution. I get that human teams will often do the same, but wouldn’t the overfitting issues be magnified a lot by doing thousands of iterations of this?
by LargoLasskhyfv | 2025-07-27 03:51:19+00:00
Only if they have fixed wiring, or specially wired sockets with the according plugs going into them. I should know, because I had my house partially remodeled, including ripping gas pipes out of living-, kitchen-, and bathing rooms. To be replaced by that.

That may be different for professional gastronomic equipment, but I have no experience with that. I think a pizza-oven or larger cooking range could have some sort of thick CEE-plug/coupling like you sometimes see on construction sites.

In Germany that fixed wiring for stoves was/is at 380/400Volts.

Since this was about a Wok initially, I assumed mobility and no fixed installation.

Why this matters in daily life(If you don't want to have gas anymore), everything takes longer to heat(with standard mains electricity), even boiling water for brewing coffee or tea in the US.

Leading to such strange contraptions like induction cooking tops with integrated Liion-battery, to at least be able to compensate for a while for the lack of oomph.

This isn't necessary, or the case in Germany.
by iooi | 2025-07-27 03:51:42+00:00
> I will get a lot of heat for this but I think the FAA has killed a lot of people.

It drives my crazy that in 2025 ADSB is still not mandatory for all aircraft. I get there's old timers flying their tail wheels from the 1950s that don't have any electrical components, but this would massively improve GA safety.

Another one is multiplex radio, again, it's 2025, the technology is there. Why are we still seeing so many blocked communications during emergencies in busy airspaces?
by efreak | 2025-07-27 03:52:03+00:00
Unfortunately, it's getting harder and harder to hold your phone like this and see any useable amount of information. I'd love to have a 3:2 desktop monitor to replace my 16:10, but even 16:10 isn't available for phones. My current phone is 9:19, and I think I've seen 9:21. The wider the phone is, the larger percentage of precious screen space the system UI uses up when horizontal. I can see half a paragraph on my phone in landscape mode, and if it was any wider I'd never even try. As soon as I want to type something, I have to switch to portrait or I lose my view of what I'm looking at. There are terminal apps I simply cannot use because portrait mode isn't wide enough (unless I shrink the font so small I can't read it) and landscape mode I can't see anything at all. This affects some websites as well, due to their insistence on removing UI elements entirely when the device is too narrow (instead of moving them to the bottom) and others that set a ridiculously large minimum width. I far prefer tethering my phone to my tablet for this reason, which I'm lucky enough to have in 16:10 form factor.
by scoreandmore | 2025-07-27 03:52:19+00:00
I’ve played around with this (the KIT-CSK-BGT60TR13C). It is a very interesting gadget and the kit doesn’t need much configuration. In an afternoon I made a car detector for my bike that detects the presence of an approaching car from behind. I thought I had a winning startup idea then found out this idea has existed for years. :(
by ghushn3 | 2025-07-27 03:53:18+00:00
> With age, you get betrayed in your ideals.

Some of us old-heads got pushed much farther left as a result of this. I used to be a Democrat, blue and blue. These days I'm much more like, "The Dems will sell me out to make a buck, I gotta go out and actually be the change I want to see in the world."

Young folks who are experiencing disillusion -- don't give in to despair. You can make a meaningful difference in lives. Build communities, engage in mutual aid, whatever.
by smeeger | 2025-07-27 03:53:31+00:00
flying is dumb. in a small aircraft your fuel efficiency can be vaporized by a simple head wind. owning an operating any kind of aircraft is insanely expensive. for years i looked into finding some way of justifying the expense of a private aircraft. the only way it can be worth it is if you need to hop between distant cities as a part of your business. flying cars will never happen
by parsimo2010 | 2025-07-27 03:54:33+00:00
If you’re worried about things exploding or something, don’t worry. Unless you were exciting a fuel/air mixture up to the combustion point you have nothing to worry about. So that would take a deliberate change to the chemical makeup of the air and much much much higher transmit power levels.

But I guess you should be careful if you are trying to modify this into an RF pulse welder and someone left their cutting torch gas cylinders venting nearby.
by Liftyee | 2025-07-27 03:56:40+00:00
Personally felt this too, though I think I hate dishonest marketers and adversarial business-customer relations more broadly.

For some reason my ideal vision of capitalism is where a company simply makes a product that solves customers' problem and makes them happy, receiving a fair amount of money in return for their efforts. No corporate propaganda campaigns or anti-consumer shenanigans needed, just a solid [thing] for people who need [thing].

Interested to hear potential problems with this approach in the replies.
by ghushn3 | 2025-07-27 03:56:47+00:00
If that was true, you'd expect the younger professionals of today would have comparative amounts of wealth to the boomers when they were young professionals. It's absolutely not the case. Each generation is getting poorer and poorer as they hit the same benchmarks.

This tracks with broad trends of wealth inequality increasing as well.

So no, it's not just "they haven't accumulated yet", because it's not clear they will have the opportunity to do so.
by Animats | 2025-07-27 03:56:52+00:00
The diamond industry got into this mess by insisting that the best diamonds were "flawless". This put them into competition with the semiconductor materials industry, which routinely manufactures crystals with lattice defect levels well below anything seen in natural diamonds. The best synthetic diamonds now have below 1 part per billion atoms in the wrong place.[1] Those are for radiation detectors, quantum electronics, and such. Nobody needs a jewel that flawless.

De Beers tried to squelch the first US startup to turn out gemstones in production by intimidating the founder. The founder was a retired US Army brigadier general (2 silver stars earned in combat) and wasn't intimidated. That was back in 2011, and since then it's been all downhill for natural diamonds.

De Beers later tried building synthetic diamond detectors. There are simple detectors for detecting cubic zirconia and such, but separating synthetic and natural diamonds is tough. The current approach is to hit the diamond with a burst of UV, turn off the UV and then capture an image. The spectrum of the afterglow indicates impurities in the diamond. The latest De Beers testing machine [2] is looking for nitrogen atoms embedded in the diamond, which is seen more in natural diamonds than synthetics. The synthetics are better than the naturals. Presumably synthetic manufacturers could add some nitrogen if they wanted to bother. This is the latest De Beers machine in their losing battle against synthetics. They've had DiamondScan, DiamondView, DiamondSure, SynthDetect, and now DiamondProof. Even the most elaborate devices have a false alarm rate of about 5%.[3]

[1] https://e6-prd-cdn-01.azureedge.net/mediacontainer/medialibr...

[2] https://verification.debeersgroup.com/instrument/diamondproo...

[3] https://www.naturaldiamonds.com/wp-content/uploads/2025/06/A...
by garciasn | 2025-07-27 03:57:12+00:00
To everyone except those with a trained eye, they're virtually indistinguishable; however, because CZ isn't as hard, they tend to scratch and dull over time and thus lose their luster.

If we're talking about 'quality', CZ just doesn't compare for longevity. That said, unless you're talking about a daily-wearing-for-many-years piece of jewelry (i.e., an engagement ring), CZ is just fine for most folks, especially considering the cost difference.
by joules77 | 2025-07-27 04:00:32+00:00
> The struggle is not just for regime change, but for the rebirth of Belief—a reminder that the “beautyful ones” have yet to arrive precisely because they have yet to be imagined and fought for

Rebirth of Belief is the language of religion. It's what religions work on everyday. But few people like to look at what they have learnt through centuries of trial and error. Or more importantly how they have survived the rise and fall of one Regime after another.

> The novel is a call to revolutionary integrity when external victories feel hollow. How do we nurture the inner refusal—the keeping clean in a dirty world—that must precede any true transformation?

This is what Priest are trained to do. Look up the syllabus in a seminary and how long the training takes (there are no short cuts). The answers for these questions are already there. They use the same language of "formation" and ask the same questions.

They are grounding everything in a belief that there is some thing much larger than them. That is what they hold on too when the going gets tough. They are taught through philosophy more than theology the human mind is a big mess of competing instincts and thought. The only way to deal with such an imperfect system is not through clever gimmicks but with love, compassion, empathy, forgiveness etc. Its very hard to do without believing in something much larger than self especially as group size gets larger.

So one modern Philosopher after anther has shown wrt the "Secular Age" (Charles Taylor et al), this grounding is hard to pull off when Attention is scattered, Distractions are infinite, Communities fragment with every new temptation or idea that enters the story etc etc without looking at what Religions have learnt.
by mortos | 2025-07-27 04:01:05+00:00
You got good responses to the rest but

> The adults around me couldn't explain scientifically what the actual difference was between a CZ and natural diamond.

I was told growing up you can just check with window glass. If the gem scratches it's CZ and if the glass scratches it's diamond.

CZ is very cheap costume jewelry and won't last as it scratches and dulls so easily
by tomhow | 2025-07-27 04:03:38+00:00
https://archive.md/j0d78

Another company doing this (mentioned in the Verge article) was Thalmic Labs, a YC company from 2013, which was acquired by Google in 2020. I remember seeing their presentation at YC Demo Day and it was jaw-dropping stuff; one of the only demos I still remember, 12 years on.

It's sad to see they didn't make it as a commercial success, and is a grim reminder that brilliant innovation doesn't assure a successful outcome.
by bglazer | 2025-07-27 04:03:46+00:00
http://spotthedrowningchild.com/

You should try this. I was a lifeguard for several years, and I think the key is that there are almost always signs a person can’t actually swim. They cling to a flotation device, they stand up to their tip toes in shallow water, they seem visibly uneasy in the deep. They’re the ones who are going to get in trouble, it’s comparatively quite rare for a strong swimmer to suddenly start drowning.
by throwawaymaths | 2025-07-27 04:06:35+00:00
real question: what are you going to do with the rest of the stack? are you in a situation where the stack and the heap might collide because you're that tight on resources? and let's say you take a function call that is about to overflow the stack. what should happen? error? panic? return null? silent fail?

there are no good choices in the case where you really need that thing you claim to need. recognizing that fact and picking different strategy is good engineering.