skysight-inc/HackerNews huggingface dataset:
It's a good question actually.

I think there is a lot of progress for hydrogen in small ways but to change the world there has to be a complete value chain from one end to another and that's been absent.

There are two scenarios for hydrogen: (1) as an energy carrier, (2) as an ingredient in industrial processes.

For (1) it faces stiff competition. For instance you could have a battery electric car instead of a hydrogen car. You could ship power via wires rather than a hydrogen pipeline, you can store energy for the grid in batteries or with hydroelectric storage instead of as hydrogen. Aviation fuel is a special hard case for decarbonization but aviation, particularly in terms of fuels, is one of the slowest innovation parts of the economy. Look at how long it has taken to get the lead out of GA fuels or for US airlines to upgrade their broken radar altimeters. Hydrogen has the advantage of high energy density by mass but very low volumetric energy density so everything from aircraft to infrastructure will be redesigned, I think the industry will be much happier to use synthetic fuels based on Fischer–Tropsch chemistry than change anything, although green hydrogen will be an ingredient of green synthetic fuels.

All of that makes me skeptical about (1).

There is a lot of talk about building electrolyzers and using green hydrogen for (2). The first phase of that is is replacing hydrogen made from fossil fuels.

Hydrogen is used to make ammonia, which is used to make nitrogen fertilizer. Hydrogen is used in oil refining and other chemistry. (Note that by current ESG rules, a company like Exxon Mobil doesn't get charged for the carbon in the fuels they sell, just for the carbon released by their oil refineries and other operations. With a 'green' oil refinery they could ship the same products they do now but still claim to be net zero for better or worse. By adding green hydrogen to a refinery they can ship more product per unit of crude oil and avoid waste CO₂)

There are other processes such as steelmaking, cement making, and glassmaking that require a high-temperature flame and where electric or nuclear heat would not be an option. For those a hydrogen flame fueled by green hydrogen could be an option. For metal production in general, hydrogen can substitute for the carbon monoxide that that is used to reduce iron in blast furnaces.
It doesn't reflect well on your argument that your quote doesn't appear in the source.

"Results estimate that livestock consume 6 billion tonnes of feed (dry matter) annually – including one third of global cereal production – of which 86% is made of materials that are currently not eaten by humans. In addition, soybean cakes, which production can be considered as main driver or land-use, represent 4% of the global livestock feed intake. Producing 1 kg of boneless meat requires an average of 2.8 kg human-edible feed in ruminant systems and 3.2 kg in monogastric systems. While livestock is estimated to use 2.5 billion ha of land, modest improvements in feed use efficiency can reduce further expansion."

Even the source you are citing agrees that after massaging the numbers as much as possible it's still 3x less efficient to produce calories for human consumption by feeling animals.
yeah, it's purely a business decision, but it sucks.
The rise of earned wage access across developed and emerging markets
So because you give a wide berth to artists and I assume high art in general... I'm sorry but your opinion is invalidated.

It's invalidated in the same way if some rube off the street told you that they give a wide berth to applied research and then went on to give some sort of opinion about workplace solutions and then summed it all up by saying some one particular thing was a red flag to them.
They think Balenciaga’s rubbing the public's face in it, an easter egg for those in the know.
Every vi mode that I have ever used in any shell allows search with ESC-/ as the vi editor itself allows.
The Middle Ages According To: Historians and Hollywood
I'll either use Kotlin or something niche like Crystal or Nim.
I watched the very first 30 seconds and saw literally zero things to worry about. If there's anything there, kindly link to a specific timestamp. Dear God, I wish we were still in pandemic mode so that pearl clutchers could scream about masks instead.

Not people wearing horns, dear god. I think we might be summoning the devil.
> Something tells me your experience is not commensurate with the standard college experience.

I know very few university students with significant work commitments.

In the US, the stereotypical college student is not also holding down any kind of job. Maybe 5-7 hours of "work study" (light work running the reference desk at the library or working in the dining hall).

Frankly, I doubt the majority could do learn a lot and also work a significant number of job hours.

At a community college, it would be very different - most students also holding down jobs, I would guess. At a flagship state university, I would be very suprised.

Evidence in [1]... about 30% of full time students are working 20+ hours/week. Also apparently I was wrong about the low hours being typical; less than 10% are working but < 10 hours/week.

[1] https://nces.ed.gov/programs/coe/pdf/coe_ssa.pdf
I’m only assuming, but I guess your last experience with Java is a bit dated, XML configurations have been largely replaced.

And then what we are left with is a huge, old project vs some new microservice, which would be an unfair comparison in any language
That's still ultimately targeted at the individuals who control and benefit from those assets. If a married couple own a car together, you can threaten to damage their car to influence their actions. The same is true if those two people own a business together and that business owns the car, and it's still true if instead of 2 people, it's 2000 people. The distinction of it being a corporation doesn't make any practical difference. You would still be trying to influence the actions of individuals in the same way as if the corporation did not exist, and it would still be individuals who are adversely affected.
I am not quite sure how this particular feature will look but Emacs can be already used as a SQL client. Here is a short demo https://www.youtube.com/watch?v=D97vDu_BhwA

Here is an introduction blog[1] and the related mode[2]

[1] https://emacsredux.com/blog/2013/06/13/using-emacs-as-a-data...

[2] https://github.com/emacs-mirror/emacs/blob/master/lisp/progm...
aspect-ratio is a new standard, so don't feel too bad about that
If it's anything like readline/Emacs, then:

^ = Control

~ = Escape
Or HLSL. Can use ISPC as an intermediary language.
Events themselves are discrete, but they might have contiguous properties, like the associated point in spacetime, assuming a the contiguous spacetime is not just an approximation.
My point is more about people not being able to draw the line somewhere, if your day to day life is miserable because you keep being eaten by remorse and fomo it's probably easier to change your mindset than your situation. One depends on you only while the other mostly depends on external factors.

Feel free to grind for that sweet $1m but until then you're an equal slave to all of us, if not more. I have enough money and time to sustain my hobbies, actually too much of both. The only way I'd give up work is to go build a house somewhere rural and become self reliant, which arguably I could do very soon, but it would probably be more work than my job's work

I also thought not working and doing whatever would be the dream life, I've done it for a year, it gets boring real quick, quicker than I expected.
Does anyone have a link to the unlocked article?
You act like the entire world wasn't trying to figure out a novel airborne virus. Understanding and evidence evolve. If people post incorrect information, it should be restricted. Recall that plenty of people went to the ER for ingesting horse dewormer? Yeah, that.

Assigning malicious intent is disingenuous.
If you write i+1 anywhere on your code, the compiler is free to assume i is different from the maxumim value and rewrite your code with that in mind.

If you are not satisfied, you can read the article's references (there are 2 for unreacheable code). Or any article about UB here for the last 20 years.
Sure, disturbing photos and all but what's the problem? This all seems to me like another "save the children" craze, a pretext to oppress speech and snoop into peoples private business.

Artists use provocative or disturbing images all the time, its how some art works. Images of children have always been used in various contexts.

If anything, I will be very disturbed if using imagery of children becomes a new taboo. I hear that in the USA you can't interact casually with other peoples children because they assume that you are some kind of pervert, are we extending this taboo to imagery of kids just because the the elite pedophile cabal runs the government conspiracy theory has become mainstream?

I find all this ridiculous. If there's an abuse or something, jail them already but this has turned into a witch hunt. The western society is just inches away from becoming like Taliban and hunting down people for objectionable art.

There's also a chance this is happening simply because Balenciaga dropped Kanye West but I hope it's Balenciaga's marketing people stirring a controversy.
Ask HN: Is Hnrss.org Working for Everyone?
I consume HN posts via hnrss.org RSS feeds. I just realized I haven't got any updates for the whole day, and thought nothing's happening. Clearly not!

Anyone on the same boat?

FWIW, my RSS reader is inoreader.
https://www.baeldung.com/ has been my lifesaver.

It's usually search "baeldung spring <whatever I am trying to figure out>" and I get a nice article telling me how to do it but also explaining it as well so I can have the knowledge in the future.

I think the main author Eugen (there are many now) has a nice book.
> I've found that even emulating missing vector functionality is usually still faster than entirely scalar code.

inefficient SIMD can still be better than scalar loops, yes, but better than that is efficient SIMD; and you may be able to achieve that by rearranging things such that you don't need said emulation, which you wouldn't have to bother doing if you could target only AVX-512.
That's not quite the definition they are positing. Many of the classes in Tailwind have near or actual 1:1 mappings to CSS, but with slightly different names or semantics. A better JS analogy might be something like Coffeescript; I remember avoiding it because it felt a bit superfluous and hence not worth the tax (of adding a tool).

With Tailwind, whatever the actual merits, the biggest points of traction (IMHO) are the frankly excellent example sites[1]. You can click through numerous examples, all load quickly and without ads, that give you numerous variations of components, layouts, and even full pages. You can spin up a vanilla HTML or React app and ship good looking pages very quickly, esp. if you are bad at design.

[1]: https://tailwindui.com
I believe the numbers in QFT are continuous. The electrons and what not are quantized but quantized over complex number spaces. U less one be
Unless the fine structure constant or speed of light, or other apparent constants of the theories, are computable some how? Disclaimer: I can only get a few chapters into a QFT book without it all becoming meaningless to me.)
Was very eloquently explained by NNT in one of his YouTube videos[0].The price of a security is the value of all present and future cash flows discounted to the present moment. Since the cash flow for crypto is zero, the present value is zero by definition, in mathematical terms.

[0] https://youtu.be/XeG0FzPxSh4
As far as out-of-the-box support, I think it works great. Much easier to configure than lsp-mode.

However, for my uses with a Ruby/React+TSX setup the performance was lacking on a large codebase. I swapped back to lsp-mode and the experience felt smoother.

IIRC the author's stance on previous discussions around multiple language servers was to rely on flymake instead, since the previous discussion centered around ESLint + TypeScript. Tailwind is a bit of an issue in the ecosystem right now, but you may want to try https://github.com/merrickluo/lsp-tailwindcss.
That's really anything highly processed. Soo much easier to control eating habits once I limited the highly processed, fast metabolizing stuff.
I love CSS, I'm relatively good at it. Didn't enjoy Tailwind until I really did. Working on a frontend project with other people Tailwind is fantastic. Everyone can see and understand what I've done and there's no trying to understand other people's style sheets, or see what they've done or anything else (especially with the VSCode plugin that orders the Tailwind classes properly). Sure, pure CSS does some bits better and I'll still use that for projects that are 'just me'. But it's great knowing that the next dev we hire can pick it up and go from day one.

As for the mentioned nested selectors (which I'm a huge fan of), in the next version I'd like to see grouped nested selectors. So instead of:

[&>div]:mt-4 [&>div]:bg-white [&>div]:px-2

You could do something like:

[&>div]:(mt-4 bg-white px-2)

Which I think would improve readability and significantly cut down on class bloat.
Oh interesting. I'm curious about your perspective on it then. How does it change the way you think about regret, if at all?
Considering most/all? crypto is backed by literally nothing, it makes sense.

The fact that so many people bought into the hype will continue to amaze me for the rest of my life.
https://archive.ph/AEaGg
Search Engine for HN
That seems like something people in SF tell themselves about why it can't be any other way. But deterrence works. If petty crimes are being aggressively policed the the volume of crime will be much lower. The volume is only high because criminals know there are no practical repercussions.
Yes, I noticed this too. Also note that throughout the 80s and 90s the grid handled the new transformer upgrades without any sort of national catastrophe. In my mind this hand wringing serves to provide arguments for the anti-EV crowd. The bigger issue might be the climate change demands of additional days for cooling, reduction of hydro electric, etc.
Having used Tailwind, once the class lists get large, it inevitably just becomes CSS classes again. My previous role had

const headerStyles = ["bg-slate-100", "rounded-xl", "p-8" ...]
...
<div className={...headerStyles} ... >...</div>

and so on. So at that point, why use Tailwind anymore?

Currently I use Vanilla-Extract, it's like SCSS but uses TypeScript instead of the SCSS language. It also compiles down into native CSS, so there's no runtime overhead like styled-components, emotion, etc.

https://vanilla-extract.style
I've long held that floating point with a decimal exponent would help a lot more people feel like computing is something they can be a part of. That is, I think the non-professional programmer finds that

0.1 + 0.2 != 0.3

is one of many little problems that adds up to them giving up the possibility of using software to put their skills on wheels. Like many reforms in computing, performance is used as an excuse to maintain the status quo of the priesthood. IBM is the only company in the industry that's taken this seriously, see

https://en.wikipedia.org/wiki/Decimal_floating_point
When technologists say that transistors (read: computers) are going to be in literally everything, even in people's bodies, some people find that scary and interpret that as a threat. They ask: why do these things suddenly need computers in them? Bodies have gotten along fine without them for millions of years. Why the sudden change? Conspiracies will emerge to answer that.
It's not just iron that's lacking in our diets. Magnesium is an extremely important mineral that is lacking in nearly every modern diet across the globe. it's the procressing of food that removes three crucial minerals: magnesium, potassium and iron. Back when white bread/processing was first becoming mainstream, people got all kinds of diseases because the processing removed all the B-vitamins. they actually had to pass laws to force manufacturers to re-add all the B-vitamins back into the food, after the processing. this addressed many of the most common diseases but they did'nt re-add the Magnesium and Iron, hence why everyone is deficient in Magnesium and iron. There's a pretty decent amount of research showing the connection between magnesium and diseases not typically associated with diet (and hence why this has not been addressed).

Eating a whole foods diet (non processed) can definitely address it but that's a tall order for most people.
> Meat eaters dont want it, vegetarians don't want it

But that's obviously wrong, vegetarians and meat eaters are buying it én masse, the product is clearly a success, at least in Germany. And not just once, but repeatedly, again and again.
Having gray area doesn't mean you can't separate purposes whenever possible (if that's what you want to do.)
From what I remember from spring boot it is (or feels like) more of a system to assemble your application from discrete modules, but which modules are used for what can be determined by configuration and various rules.

I mean the use cases of that will be limited these days; application architectures have changed to the point where what used to be a module within a Spring application can now be a microservice to be enabled or spun up depending on rules defined outside of the application.

But this is a very superficial point of view, I haven't seriously touched Spring for a decade and, thanks to some experience with Go, I feel like I won't need to either for most modern-day applications.

While Go may not be for everyone or for every application, its mindset of keeping things simple, just use the SDK or some libraries, etc does make for better developers. IMO.
Jupiter Is Angry
"No sane lender would extend credit against assets lacking any underlying collateral."

I love this quote. This is the reason I refuse to get involved in crypto.
Wasn't this the plot in a Mickey Mouse movie?
Interestingly, the American Samoa recruiting office has the highest recruitment rate of any such center for the entire United States' armed forces. One bizarre side effect of this massive recruiting drive is that American Samoan enlisted men and women retire to the mainland and then are unable to take up jobs they are more than qualified for, such as sheriff deputy or police detective. (These roles require US Citizenship which they obviously lack.)

This situation has led to a number of lawsuits, none of which have satisfactorily solved the issue. It seems the courts are mostly content to let Congress and American Samoa eventually solve the incongruence, even if the present situation is somewhat without parallel and extremely inconvenient for those caught in the edge cases.
I manage at a client an application which is the actual leader (most top right and by far) in Gartner magic quadrant for its category, and for years, I have never seen a product this bad, where the implementors and supports are clueless of their own product. And obviously it's buggy as hell.

Lies and deceptions.
Rubes are entitled to their opinions as am I.

The wide berth is to give more latitude in restricting behavior than those who are not artists. It’s a privilege to allow them more freedom to create art. If they use that privilege to create BDSM teddy bears then I think social outrage is a predictable and appropriate response.
> JSON sucks

I don't understand this sentiment at all. Not even sure why we need this tool. Feels like a solution looking for a problem to me.

Personally, the built-in JSON parsing/formatting in VS Code (or any other editor) is plenty for me, and for API results Firefox will automatically format / collapse it.

Eg... open this link in Firefox: https://www.reddit.com/r/funny.json
As long as drugs stay illegal and some countries have worse money swings than the crypto does I can't see it being zero. It doesn't need to be high for either of those things, of course, and a stableish low price works fine for both. And you don't need a million random shit coins for either of those use cases so those would be worth 0.
Why can't they fix this by sliding it into a big omnibus bill? Who is actually opposed to this?
I am a former meat-eater. I became vegetarian for ethical reasons, and I don't really miss meat much (except for the very occasional chicken wings craving).

A couple of years ago I was at a restaurant (Beach Chalet in GGP in SF) and ordered their "veggie burger". It was one of those Beyond Meat/Impossible burgers. One bite and I recoiled in horror: did they give me real meat instead of the veggie option? Now, it has happened in the past that I have been given meat when I specifically ordered something vegetarian. For example: "beef burrito" at a taco place when I wanted a "bean burrito". It brought back those bad memories and I could not take another bite.

The problem here is a marketing one. Beyond and Impossible have a market, but it's those people who would just like to lower their meat consumption. _It is not the veggie burger eating hippie!_ By forcing us vegetarians to consume these fake burgers, the industry is embracing a lose-lose proposition: most vegetarians want nothing to do with these because of the taste, and most meat eaters would rather just eat the real thing.
> Who ever encountered a nuanced populist?

One can hope :)
How to remember "Kill word backward/forward". Is there any mnemonic for C-w, M-d?
I love using just the grid/breakpoint part of Bootstrap and use it as grid.css. No need for complication, no preprocessor needed, etc.
Exactly! (Btw I've just been going through all of the comments of this and upping everything you post lol. You seem to have your head on right about all of this )
"If you owned all of the Bitcoin in the world and you offered it to me for
$25, I wouldn’t take it. Because what would I do with it? I’ll have to sell it back to you one way or another. It isn’t going to do anything."

Warren Buffet
I know denial of biology is the rage these days, but Humans are born with very limited brain capacity and develop it over time as they age, maxing out about 25 years of age or so.

One of the reasons why Democrats want 16-year-olds to vote, because only people with limited brain development would support most of their policies ;)
> If I could do it over again I'd just use pixel values, like h-12 is .75rem (which is 12px by default).

(External quote from the maintainer)

Bit of a tangent, but what's the play here? The library is worse than it could be because of this reason. And of course you have adoption and don't want to break people's shit.

Seems like we're missing out on "what could be."
> It's because the animals need to eat (surprise surprise) vegetables!

Not exactly. In pastoral agriculture, animals eat grasses that humans cannot, on land that is not easily farmable (infertile, rocky, hilly, etc). A nice side effect of this is that the animals make the land more farmable by fertilizing it with their poops.
Now that is a good example. I've encountered the problem of compile times myself. I've asked Daniel Rosenwasser about reimplementing the TSC compiler in a compiled language for a better speedup, but he said it wasn't worth the hassle because the compiler moves so fast and the spec is pretty vast at it's current state.

> type errors may be such a small proportion of your errors that a using a type checker isn't justifiable

This is a bit biased. The major advantage I see in using typescript is that you can be certain an interface is exactly what it says it is.

> As an aside, at least to me your posts are coming off as really combative in this thread

You are correct in this. Sorry. I will fix my comments to come off as less abrasive.