skysight-inc/HackerNews huggingface dataset:
> the definitions are actually the exact truth (by definition! tautologically so)

It’s easy to forget that non-math people find this — the idea that the definition is its own ‘model’ rather than an approximation of something more ‘real’ — somewhat hard to stomach. Outside of pure mathematics the idea is that mathematics is a tool for (usually lossy) modelling of reality, not a collection of already perfectly well-motivated objects to be studied in their own right.
>I have yet to meet the product owner that knows what "the right stuff" is.

>Defining the problem is the hardest part.

I have yet to meet a product owner that collects customer requests (or determines customer pain points) and assigns a value to implementing/alleviating them, also known as determining the payoff function.

Determining the most valuable problem to solve is the hardest part.
DearPyGUI with its imnodes extension seems to be a good candidate as well.

Also, not a node editor, but NetworkX also has ways to represent and operate on graph data.
The Evolution of Machine Translation: A Brief History and What's Coming Next
> Apart from nuclear power: that's held to even higher safety standards than flying.

And with good reason. Fukushima rendered large amounts of land uninhabitable for years, Chernobyl to this very day impacts fungi and wild pig meat in places as far away as Bavaria - and that's just the two fatal accident scenarios.

On top of that come all the other incidents - the cleanup of Sellafield for example will cost > 130 billion pounds [1], a result of decades of negligence.

Nuclear power is only financially viable when taxpayers of all the countries surrounding a NPP pick up the bill in the disaster case. Would every NPP be required to obtain actual insurance to account for disasters, it would be among the most expensive ways to generate power.

In contrast, the most damage that a runaway airplane can cause is a few thousand deaths, by piloting it into a skyscraper.

[1] https://www.proactiveinvestors.co.uk/companies/news/1058944/...
For anyone else who hasn't heard it before, a bush lawyer is "One who is not qualified in law yet attempts to expound on legal matters."

https://en.m.wiktionary.org/wiki/bush_lawyer
I guess the other option would be to require that any licensed binaries for the software needed to include a transfer of license (for the purpose of rebuilding the software to a runnable state) to any parties that purchased the product using that blob licensed library.
There was a while, a short while, when we thought perhaps naively that there was a chance. For those who might dismiss the sentiment, you had to be there. Things didn't turn out as we had hoped. Not all of us who hoped for something other than what we got, something better, were ageing hippies either.
Well yes, agree this is how it looks now. But my perspective is that there has to be layers of mechanisms protecting them, rather than the natural order. (These mechanisms are tricky to pin-point but seem to be on the themes of mutual loyalty, avoiding embarrassment, keeping face, and so on.)

Imposing some formal framework is more likely to insulate managers even further while making software developers accept legal responsibility beyond their pay.
This is my favorite HN comment of all time
"Once the rockets are up, who cares where they come down? Thats not my department." says Wernher Von Braun...
Free Productivity Tool for Businesses and Freelancers
I doubt that. Walmart/target/best buy/kroger/Nordstrom/staples/b&h/Costco/ etc don’t pay another business for dealing with the inventory.

Sounds like it would result in less accountability and efficiency, and an arbitrary line to draw.
Yep, on Linux, or WSL to be exact, I just use the internal shell though.
I Want an Honest Office
Are you saying that RAII is "new technology"??
Posted a while ago on HN:

https://slimemoldtimemold.com/2023/07/24/your-mystery-have-a...

A good litterature survey, easy to follow. Better than reading one or two isolated studies, since it does ask the crucial question of "well what is (and how do you measure) attention span anyway?"

Less rigorous but similar conclusion in video if you prefer
https://youtu.be/aDfeOvUZ7Kk?feature=shared
> To fix it, one needs to be more careful when defining \overline{c}_i.

I think the usual way to fix it is actually to be more careful when defining C(n) - that is, to specify that the value of C(n) is a sequence of digits, with the sequences in 1:1 correspondence with [0,1], not itself a value that belongs to the interval [0,1]. Then you can just say that trailing zeroes, or trailing nines, aren't allowed, giving you a unique representation for every value in [0,1]. At that point c-bar will work as defined.
Tell that to the laryngeal nerve which loops around your aortic arch, for no good reason. And to our inferior eye compared to the octopus. Amongst other things.
How long does a fast latex renderer take on a large document? It's been a few years since I worked with latex, but it's on the order of multiple seconds, right?
It has glimpses of an awesome sci-fi atmosphere, which no other game has.
I like to do a lot of this:
https://youtu.be/0Cii3MWNN8M?si=n2WMfQfgxciRZj0A&t=75
> No, it's really not a problem. The loop doesn't suddenly loose compression if something bad happens. If there's electric power, there's more than enough time to slowly cool down the reactor.

It can in design basis accidents, for example a complete break of a main circulation pipe leading the loss of coolant (LOCA) into the containment. The emergency cooling system would then operate by spraying water into the core that would evaporate into steam that would go right out of the reactor vessel. The containment has to be sized for such an accident.

As an example of such an accident, consider what would have happened at Davis-Besse had the erosion of the lid of the reactor vessel progressed to an actual perforation. As it was, the steel was removed in an area down to the inner stainless steel liner, a liner that was never intended to be load bearing against the internal pressure.

> And a containment building (that also protects against external threats like an airplane ramming into the reactor) has more than enough volume if the primary loop is de-pressurized and the water flashes into steam.

Right, it does. That's why it's so big and expensive, with so much internal volume. If it didn't have to, it could be made much smaller. The airplane requirement doesn't change this; it's easier to make a smaller containment building resistant to aircraft impact than a larger one.

> The water in the primary loop is clean. It's constantly purified by filtration through ion exchange resins. Once the activated oxygen decays (in ~1 hour) you can swim in it (although I wouldn't drink it).

That's true in normal operation, where you might have some small number of fuel rods with cracks or perforations (but even that is getting pretty uncommon these days). It would not be true in a design basis accident, where some or all of the fuel may have partially or completely melted, and where cladding will have been compromised by high temperature reaction with steam. The design must assume essentially all the volatile fission products have gone into the water. At TMI, fission products carried in the water (and also noble gases) raised radiation levels in the containment building to 800 rem/h during the accident.

> The filtering system you linked is not strictly necessary for modern PWR designs.

I offered up the possibility that such systems could replace the large volume containment of modern systems (or at least reduce its size and cost). Sure, they're not obviously necessary if you have a large volume containment already (although some countries ended up requiring them anyway since some accident scenarios do involve venting, as happened at Fukushima, which admittedly had pre-modern designs.)
Not sure if it would take away from the experience, but there's this repo which is made for AoC that handles getting the input from a text file, sets up a source file for each day, etc

https://github.com/TanklesXL/gladvent
I'm not OP, but I can't see the video on my mobile browsers either (even after disabling any adblock).
> I barely interact with them

My first thought is... why? Have you tried reaching out to them to discuss what you're building? Maybe a shared chat channel (slack, teams, whatever) where you can discuss what you're doing; or even rubber duck and people can read as they want and offer their insights. Just because you're not on the same projects doesn't mean you can't talk about your work with each other.
Being long doesn't necessarily mean they aren't bad for attention spans. I recall seeing a reviewer complain about a story driven game recently where the characters were constantly restating plot points to make sure you didn't forget. And the more important thing in games than narrative, I think, is how much the gameplay itself makes you think long term (or not), and the pace of things. Do you have to keep a goal/strategy in mind or just constantly react to what's immediately in front of you?
> Why not use androids to colonize Mars...?

Because the closest thing humankind has come to a working android is the (often somewhat glitchy) OS on most of the world's phones.
Isn't a big part of the issue for the first incident that pilots didn't know MCAS even existed?
European Air Quality Index Tool
Check out the giraffe's cardiovascular system. It seems you're alluding to intelligent design and there's a lot of very unintelligent "design" everywhere.
Computer Modern is actually a family of fonts, generated using Metafont, free software also created by Donald Knuth (who made TeX). There are thicker variants, and you can generate more at will.

I still think it is one of the most elegant font out there, although I probably wouldn't recommend using it on a webpage.
> Reusing feature flags in a high frequency trading scenario

I think I read about this story
I wrote this paper a few years ago about this for education researchers: https://journals.aps.org/prper/abstract/10.1103/PhysRevPhysE...

This paper probably seems obvious to a lot of people but i found when i gave talks about things and read and reviewed papers people typically didn't know basic things like why you might leave some data out as a test set, why some models work better than others, when you use logistic regression versus linear regression, etc.
I like the cut of your jib, that is an interesting and unique perspective. I would add to the list of "how replaceables",

How many patents do they hold?

Do they owe child support?
Having spent a lot of time at a hangar at international airport in Africa and flying there, I can say that there's a thin line between crashes and incidents that could have resulted in a disaster. The former being extremely rare while the latter occurs so frequently it's scary. Between pilot errors, ATC mistakes and bad aircraft/airport maintenance, I've witnessed and heard of many near misses and incidents that have miraculously not turned into something worse. Passengers are completely oblivious what they narrowly escaped.

I often talk about my experience to my peers in Europe. They have similar stories, albeit not happening as frequently. Looking at accident reports on Aviation Safety Network [0] and breakdowns on YouTube such as videos from Mentour Pilot [1], some of the factors that contributed to crashes still occur frequently without resulting in an accident. It's usually a combination of multiple failures that lead to it. My flight instructor used to tell me, every aggravating factor (i.e. lack of sleep, low fuel quantity, complacency, assumptions, etc.) fills a glass which leaves less and less space to luck until it runs over.

[0] https://asn.flightsafety.org/
[1] https://www.youtube.com/@MentourPilot
The issue is that no one fully understands why synaptic pruning occurs in biology. Large language models have no direct connection to biological systems, and pruning in LLMs is no exception.
That is just them making sht up.

Arhgap36 does not just effect the MC1R receptor. It is GTPase activator for the Rho-type GTPases. And there are a lot of them:

https://en.wikipedia.org/wiki/Rho_family_of_GTPases

These polymorphisms not diminish GTP totally, it just lowers it.
can you give examples of how statistics violates common sense?
It’s overkill for this audience. HN is pretty forgiving of spelling and grammar mistakes, so long as the main information is clear. I’d encourage anyone that wants to share a comment here to not use an LLM to help, but just try your best to write it out yourself.

Really - your comment on its own is good enough without the LLM. (And if you find an error, you can always edit!)

If we really wanted ChatGPT’s input on a topic (or a rewording of your comment), we can always ask ChatGPT ourselves.
I think broadcasting is really one of the points where Julia shines.

It's worlds ahead of Python/numpy.
Isn't this just "why not make your own Advent of Code instead"? Which seems to misunderstand why Advent of Code is so popular.
Gl. I've yet to meet anyone that actually finished AoC. At some point the problems take 8+ hours to solve and people give up :).
Can this defeat perimeterX used by Zillow?
Creator/maintainer here!

December last year a user managed to run an instance on browser, as can be seen here: https://sefgit.github.io/nodezator/build/web/ (you must wait a few seconds for it to load, them again after the black screen, at least for me, but it works)

Corresponding repo: https://github.com/sefgit/nodezator/tree/nodezator-pygbag-de...

There are no official plans to bring and support Nodezator on the web for now, given how much Nodezator still has to evolve and implement. However, initiatives like that are very interesting and may indeed inspire and motivate us to pursue the possibility in the future.
Honestly use the gym analogy again:

You've spent the last hour trying to curl the 50kg dumbbell and you just can't do it. You walk up to the yolked out guy and ask him to show you how it's done, he picks up the weight and curls it with ease.

At this point its not really fair to say you curled those 50kgs, and you didn't get much out of the experience. Maybe you noticed something about his technique that helped, or he gave you some pointers, but you still can't lift the weight by yourself even with that information.

Now if you instead went back and trained some more at lower weights not only would you get more out of the experience (in terms of growth), but also seeing someone else do it is more beneficial since you can try it again yourself and directly apply what you just learned. Eventually with enough training at easier weights and progressing naturally you'll be able to lift the 50kg weights. But that one curl you're now getting to do for the noobie is in no way indicative of the time and effort you actually put in to be able to do that one curl.

Now if you're instead in a warehouse doing your job moving heavy boxes from A to B getting the yolked out guy to help you isn't that bad - sure you can't do it in the future but all that matters is that it was moved from A to B. If we take that same mindset into the gym we'll get nowhere since the gym isn't about moving something from A to B, it's about making you better at moving something from A to B.
In this context, decent would imply sufficient to incentivize a sufficiently smart person to work at Intel, and live wherever Intel needs them to compared to other opportunities, such as living in the Bay Area and earning multiple hundreds of thousands of dollars per year and the potential for much more by starting your own company.

Microchip manufacturing is supposedly one of the most difficult things to do in the world, but why should the smartest people in the world do that if they have a maximum potential of a few hundred thousand dollars per year when writing software can get them far more?
I mean that's largely an unanswered question. Aparantly there's currently a semi-automated algorithm that works but needs a LOT of supervision, making it much too expensive to use to "unroll" all the rolls.

As to how you would even go about using the slices, keep in mind that a stack of slices gives you a volumetric model. The scan basically provides a high resolution volumetric model of the density of the scrolls. You'd need to somehow use this density information to trace a path along the curl of the scroll. This then gets you a density map of the scroll as if it was unrolled. Then the next trick is to somehow turn that into legible text.

The details of how to do the above are currently unknown. There's a prize for whoever figures it out.
But they are literally showing the mechanism, so the reason for causation is there.
> He thought 1/0 should be 0 rather than an error because "that's what people expect"

So I saw this in action once, and it created a mess. Private company had a stupid stock dividend mechanism: every shareholder received some fraction, dependent on fundraising, of a recurring floating pool of shares, quantity dependent on operating performance. (TL; DR Capital was supposed to fundraise, management was supposed to operate. It was stupid.)

One quarter, the divisor was zero for reasons I can't remember. This should have resulted in no stock dividend. Instead, the cap-table manager issued zero-share certificates to everyone. By Murphy's Law, this occured on the last quarter of the company's fiscal year.

Zero-share certificates are used for one purpose: to help a shareholder prove to an authority that they no longer own any shares. Unlike normal share certificates, which are additive, a zero-share certificate doesn't add zero shares to your existing shares; it ambiguously negates them. In essence, on that day, the cap-table manager sent every shareholder a notice that looked like their shares had been cancelled. Because their system thought 1 / 0 = 0.

If you're dividing by zero in a low-impact system, it really doesn't matter what you output. Zero. Infinity. Bagel. If you're doing so in a physical or financial or other high-impact system, the appropriate output is confused puppy.
Yes, but this is two well known and understood functions we are talking about, wrapping them is really not that hard.
I find Elixir and Phoenix have most of the niceties of RoR but a more rigid handling of databases with Ecto and very few of the drawbacks.
Hey HN,
One frustration all my projects have in common: getting detailed, insightful feedback from my users.

I often feel the high-level feedback I get from App Store reviews or ad-hoc user requests to be too generic and hard to figure out the root cause of the user's frustration.

I also find conducting more detailed user interviews too time-consuming, especially as a founder!

That's what prompted me to build UserFeedChat

How it works:

1. Create a custom-branded UserFeedChat bot, which you can link to from anywhere (inside your product, website or even customer emails).

2. Users can go to the chatbot and request features, discuss the product or highlight bugs.

3. Through natural conversation, UserFeedChat will uncover the REAL insights from users. (It follows the best practices of user research, including the 'Five Whys' principle and all insights from books like 'The Mom Test'!)

Bonus: UserFeedChat will also ask relevant demographic & usage questions, to understand if the feedback you are getting is actually from a user who 'should' be using your product and if they would be willing to pay for it!

4. You'll receive daily & weekly summary emails, highlighting users' key pain points & frustrations.

End Result: you'll be able to gain a clearer understanding of users' thoughts on your product, all on autopilot.

----

Despite building many products in the past, this is my first posted on Product Hunt. Let me know what you think. Any feedback is greatly appreciated.

p.s. You can actually give feedback directly to my own UserFeedChat chatbot on the site: userfeedchat.com
Hi I’m here looking for a different offering. I have a personal library of physical books that our small group wants to be able to lend out to others.

I want people to be able to see which books are available and reserve books that are out and get notifications when due back.

And preferable self host as a small site.

Anyone know a small open source physical library management tool like this?
ContainerScript: Firefox Addon for programmatically assigning URLs to containers
What are "high desires"? Those of the eusocializing egregore? Yeah, it'd say that.
Hey everyone! Let me start by sharing why I created PostPocket. While prepping for an interview and scrolling through my feed, I stumbled upon some great resources—a DSA cheat sheet and behavioral interview tips. I wanted to save them in one place to revisit later, but I didn’t want to disrupt my scrolling flow by switching to another app.
That’s when the idea for PostPocket was born—an app that uses share extension to let you quickly save posts without leaving your current app. After a week of development, I launched PostPocket!
Try the app and if you like the app, please upvote it on Uneed.best
> I've never looked for a job while I had one.

Same, and that keeps biting me on the arse. EVERY TIME.

As for the rest of your comment -- it is sadly spot on. I am extremely tired of complacence myself.
It’s not just a matter of tying depositors to their money. There’s something like $100 million that’s actually missing. It’s not clear whether it’s just a matter of finding the accounts or whether it’s actually been stolen somehow. Synapse managed the money. They say it’s with Evolve Bank & Trust, but Evolve says they don’t have it. It seems likely that it was moved and they just lost track, but that doesn’t seem to be entirely known yet.
Internet legend. All cats do the same things. Some individuals are smarter, but I doubt it has anything to do with fur color. And I don't recall hearing anything special about orange cats from people who have many cats.
Article on Sitzfleisch: https://www.bbc.com/worklife/article/20180903-to-have-sitzfl...
Those numbers on the “debt clock” represent lost purchasing power for the numbers in your back account. I.e. a tax.
I really wonder. I'd expect Norway to be there sooner.

As for the Netherlands: there are significant grid capacity problems, EV tax is going up due to expiring subsidies (which will double road tax for EVs in about 3 years) and lots of people seem the be very conservative and cling to their ICE cars because as everyone knows it's vital you can drive for 800km without taking a break.
Of course, all can be solved by prohibiting people from buying a non-EV. It just means a lot of people won't be able to own a car anymore. I'm not quite sure how that would work out politically.
How much of that is the opinion of the corporate masters who fund the Linux Foundation?

Why Rust and not Ada for example? Rust is heavily promoted by web developers who call the shots these days because they bring in the advertising money.

I find it hard to believe that Rust is the end of all other languages, especially given its ugly syntax.
Ah, that makes more sense—I thought this game came out years ago. I wondered if they reused the title or remastered it or something.
This is not applicable to every book. Try doing this with Casella and Berger and see how difficult it becomes.

Some books can take many many months to finish off like this, and most courses only cover a small percentage of the book.
Casio's ring watch is coming to the US
Are you limited by country to help
. Mind sharing your email?
Mapsy – easy static maps in Python
The Brazilian government buys windows licenses in bulk.
As a developer working on trading platforms, this is horrific.

Given the Post Office had a reputation for really good exchange rates, this one design flaw might be responsible for a significant portion of the problem.