skysight-inc/HackerNews huggingface dataset:
Consider a disconnected domain (say, union of a few open balls in R^n), and f being constant in each connected component, but having different values in each ball. The differential is indeed everywhere 0 in the entire domain.
I don’t know that massive datacenters are truly a good investment for my employer, but at least we have several zones in two regions in case of power/network/natural disaster issues.
Agree. It boggles my mind how bad and downright hostile windows has become in windows 10/11. I'm supporting a group of ~50 people and most of the time I cannot even give reasons for some of the baffling design decisions and/or frustrating behaviors that I see on a daily basis. I feel like every solution I'm giving is a work-around at best.

And don't forget the new mandated corporate messenger: Teams. After burning messenger, killing skype and linq and all the "for teams" versions, this is their absolute worst yet.

The sad part for me is how you _do_ actually get used to this crap and workarounds. I was able to do a linux-only stint for a few months, which served me as a reset ground. Coming back to windows support was a real shocker at how bad doing _anything_ feels like.
Is that not mostly engineering? Refinement of existing hard science?
Yeah, super interesting post. In case we're going to get answers, I'd love one on this too:

> In fact SimCopter even had some officially sanctioned cannibalistic behaviors

I own Sim Copter (bought it in the 90s) and I certainly never noticed this, and can't see it mentioned anywhere else on the Internet.
From https://openresty.com/en/xray/:
High CPU Usage
Up to 90% reduction in CPU usage

Large Memory Consumption
Up to 90% memory footprint reduction, less than 5 minutes to locate memory leaks

Slow Disk I/O
Capable of 80% reduction in disk I/O saturation and latency

High Network Latency
As much as 90% reduction in response latency and timeout errors

Smells snake oil to me
Brains Might Sync as People Interact – That Could Upend Consciousness Research
More Americans died of Covid in the past 2 weeks than died of flu in past 3 yrs
Because (very very roughly) the way you make small features is by scaling down your projection area to a tiny size and then stepping it across the wafer. Your projection area boundaries are where errors are most likely, and the bigger your features the more such boundaries they cross. The details are quite involved, but this is the general problem.
I think a well written GPU renderer (in webGL for example, if running in the browser) ought to be able to render 30,000 dots at 60fps, even on an intel GPU.
Touch controls on stoves are mostly about making cleaning easier. You just wipe a flat surface.
I think it's just a subtle way of saying "Implementing these rules in software might take a while, but you can use a physical chess board to try these variants"
Thanks! Fixed it :)
I don't believe that the vast majority of soldiers go into war because they believe in the cause and are ready to die for it, not at least in countries with professional armies.

Soldiers go into war because it's their job, it's what they're paid to do.
"I always indicate even if I can't see anyone about."

Well of course. "Nobody else is here" looks the same to you (and me) as "I haven't seen that other road user", and in the event that you haven't seen the other road user, the only chance they have is for them to take action and they really, really need the warning of your indicator lights.
And that's what we (should) send kids to school for.

Is that what we expect out of 6-year-olds, though? Probably not. We expect elementary kids to play and learn basic concepts of things and about the world around them. There is a clear limit to how "deep" a 7-year-old is going to be simply because of maturity and lack of knowledge.

We expect more in later schooling years - and that is what your quote refers to. Older children, listening to a lecture. It doesn't mention specifically that this was cursive, either: They were comparing it to typing.

And we don't want to force it, either: Later in that same article, it mentions, "typing may help significantly increase exam grades, according to the British Dyslexia Association. And those with physical impairments have long used technology to record their thoughts."

Pretty much, writing is a tool that might help you learn assuming you have a neurotypical brain, and even then there are likely other tools you can employ instead.
The best case would be somebody keeping a big stockpile and selling from it at a premium. “Anti-gouging” laws prevent that for toilet paper, so each of us has to hoard it instead.
Nice straw man. But I'll go with it for no other reason that I hope no one believes in that absurdity as an argument against planning for component supply issues. Issues that businesses have experienced time and time again since we began mass producing transistors.

That is because it's a utility that source power from several producers. The risk of no power what so ever for a prolonged time is not something to even be considered. Should that happen, society as we know it is probably at risk and my job is no longer important at all. Oh, and someone actually do plan for intermittent power delivery failure including having two different outside sources for power, a battery backup and diesel generators, data centers come to mind.
This is also a simplification.

If the vaccines are creating sterilizing immunity, this might be true. For example the measles vaccine does that.

But for all current SARS-CoV-2 vaccines we have we don't get sterilizing immunity.

So it can still make sense to get vaccinated even if society at large is vaccinated.
The iPod nano used aux for data and charging. But not at the same time as audio.
Ha, this reminds me of the day I found out. I've port scanned my own servers ever since, just in case. It's such an easy footgun to fall for, they should really put a big scary warning somewhere on the Docker installation page for Ubuntu or something.
>were body-builders using free weights, they would have to charge them at very least 2x.

At same spaces, yes! Good quality barbells and weights, while expensive, keep for over 30 years. Bodybuilding and powerlifting doesn't take much space, so you don't need a large space, and the customer base is dedicated and can often tolerate their gyms being a bit out of the way. Machines, however, like to break and are incredibly expensive compared to barbells and weights.
Just this weekend I was reading that more than 60% of the research into cholesterol is funded by the egg industry. Research funded by industry overwhelmingly shows things in as positive light for industry whether it does or not.

This kind of example is common. It tells me its worth questioning research and looking deeper at what ever is released. When someone questions research to look at the merits of what they say.
We have video from the government that is matched with eye-witness testimony from David Fravor, a pilot who taught at the Navy's Top Gun school. I'm not suggesting this is iron-clad evidence of anything, but nothing about this incident (and others) has been "debunked". The first-hand account of one of the Navy's most accredited naval aviators along with matching video and sensor data more credible than some random person on Youtube who "debunks" it by saying it was the moon. If the evidence points to a phenomenon that doesn't operate inside the laws of physics as we understand them, then we have to adjust our understanding. Perhaps there are very good, mundane explanations for this and another incidents, but its foolish to simply ignore or downplay the significance of things we can't understand.

https://www.bbc.com/news/world-us-canada-52457805

https://www.youtube.com/watch?v=aB8zcAttP1E
D'oh, I missed the possibility of an open domain. Thanks!
No, no it is not correct. They replied and they are paid with PayPal, not Bitcoin.
There are also different variations of “science”.

You have hard science where the research is based on repeatable experiments in a lab where you can clearly isolate every other effect.

You also have softer sciences where experiments are difficult or impossible, and where people try to come up with the best approach. Climate science falls in that category (you can’t really experiment with Earth’s atmosphere, at best backtest your model to check it is compatible with your data).

The problem is that medicine falls within both of those categories. Some parts are fully replicable (like test 3 anti-allergy creams on the same skin at the same time), but many others don’t have the luxury of being able to experiment on humans. So you end up relying on correlation analysis with low samples and a million possible variables. Some bits like epidemiology are more akin to climate science.

The problem with these softer sciences isn’t that they aren’t science (the progress of medicine over the last century is prodigious), but that it’s hard to trust any study individually. So when someone points to a paper that shows a reduction of X by Y% if you do Z, my first reaction is skepticism. So I am struggling with the whole “follow the science” thing, and the idea that any objecting opinion must be crushed.
It's not a race, but I'm even worse; I just tune out and shut down completely in the face of mathematical formulas on webpages. It's a really visceral reaction.

I've done mathematics in secondary school (coordinate systems, Pythagorean wotsit), but I can still visualize those and put them into practical use. Later on I had statistics and linear algebra - that last one I had to redo and really work on, it was only after I did a minor in game design that I could finally map that math to a practical application.

But I just don't have the background - or interest! - in anything else related to math. And I don't miss it either, else I would force myself to learn about it.
Trying to protect basic workers' rights through legislation that protects personal information is downright weird. You'd think workers should be better protected than just random people who share their personal information.

Article 22 even acknowledges this to some extent, making an explicit exception for people who have some other kind of contract (including employment) and for which the law has defined suitable safeguards. U.S. employment legislation is indeed not a sufficient safeguard, but the fact that it insufficiently protects privacy is somewhat of an understatement.
I have stopped trying to be the "adult" in our company. I admit that I don't know everything, but two decades of experience has given me some insights. But when I make a suggestion with examples to back them up, my experience is often used against me. I have learned to let it go and allow them to fail on their own. I'm not going to work there for long anyway
I've looked at some teaching materials and examples for KS2 and KS3 in England.

It seems there's now more emphasis on letter forms than there was in the 1990s, when I was being taught "joined-up writing". I didn't have to put a stupid tail on the left of the C at the beginning of "cat", or any other round initial letter. Let alone the tail on a lower case initial H, or any capital letters.
Chinese scientists create AI nanny to look after babies in artificial womb
Yeah, this is a classic example where social media spreads falsehoods, including mistakes.

Here the exec is stretching the definition of the term gene therapy to include things that don't alter genes "mRNA vaccines are an example for that cell and gene therapy". He basically makes a mistake, because the same platform is also used for gene therapy.

To use a software analogy, just because both mRNA vaccines and mRNA gene therapies are software, doesn't mean that mRNA vaccines perform system updates (instead they trip the suspicious behavior detection of the anti-virus and trigger a download for new virus definition files).

Additional subtle distortion happens later on social media when people take this mistake and "shrink" it in the opposite direction "actually mRNA vaccines are NOT vaccines because they're gene therapy".

Joe Rogan then takes that and stretches it further to imply this is why the vaccines don't last long

> This is really gene therapy. It's a different thing. It’s tricking your body into producing spike protein and making these antibodies for COVID. But it’s only good for a few months, they’re finding out now. The efficacy wanes after five or six months. I’m not saying that people shouldn’t take it. But I’m saying, you’re calling it a thing that it’s not. It’s not exactly what you’re saying it is, and you’re mandating people take it

Sinopharm makes a COVID vaccine from dead / inactivated virus. Its used widely in China as well as in the developing world. We've also seen the same reduced antibody neutralisation there, and it isn't necessarily because of the passage of time but to a large extent due to the evolution of the virus to be significantly different from the original.

So yeah, this is a perfect example of how social media spreads engaging novelty - whether its deliberate disinformation or simply mistakes - and continues to distort it further by continuously applying stretching and shrinking. The info blob continues to evolve to evade people's "immune defences" and cause them to re-share it (e.g. retweet).

This is not something new, traditional media have been doing it for decades ever since the rise of the yellow press, with varying levels of subtlety. The difference is that this here is an "organic", crowdsourced process that yields better, more convincing results, as it has to defeat the "immune systems" of many people to get a good reach via resharing. Only the highest quality misinformation makes it through.

The worst bit about this phenomenon is that corrections don't work well. People who haven't heard the rumor don't care about the correction (its not interesting) so they don't share it. People that have heard the rumor before don't like being wrong, so they don't share it either. So it doesn't matter how many scientists explain the difference, the explanation will never have anywhere close to the reach of the original (likely hundreds of millions of people)
Wait what?

Then why didn't Pfizer create the "iPhone app".

You are seriously underestimating BionTech's advanced lead in mRNA. A fair comparison would be to create an iphone app without an SDK in existence yet, but an app store in place.

Pfizer was there because it's existing infrastructure for trials and experience. While the timeline was seriously reduced, they didn't had to do much "new" that they hadn't done before yet.

Additionally, requirements in the fridge was reduced to -20° which made it a lot easier than your -60°-80° and was assisted by many more than just Pfizer ( see UNICEF and their "cold chain unit" for this or how covax delivered > 1 billion doses)

> Back in 1974, the World Health Organization (WHO) established the Expanded Programme on Immunization (EPI). In order to assess the feasibility of a single, global immunisation schedule incorporating vaccines against polio, measles, tuberculosis, tetanus, diphtheria and pertussis, the EPI was initially piloted in Ghana.

> One major challenge quickly became apparent: as vaccines were temperature-sensitive biological products, they needed to be continuously stored in a limited temperature range from the time they were manufactured until the moment of vaccination. Any exposure to temperatures outside this range would irreversibly affect vaccine potency, diminishing the ability of vaccines to protect vaccinated patients.

> The solution was a workable “cold chain". A term adopted in 1976, it described a global network of cold rooms, cold boxes, vaccine carriers, refrigerators, and freezers that kept vaccines at the WHO-recommended temperature during the long journey from the manufacturing line to the syringe.

Similarly, Ebola also needed cold chain infrastructure.

Creds for doing it this fast, yes! But it's not something new and i won't pretend it is. Pfizer was the best choice for bringing it to market, definitely.
Honestly, a lot of these services should be secure and closed by default; they make them open by default to onboard people more easily when they're in the POC phase of their project. But there's nothing as permanent as a temporary solution.
I suggest to differentiate between selling MongoDB as a service (which would break the SSPL) using MongoDB as a database in your solution where you bind your application to the MongoDB driver that are licensed under Apache 2 (and which is the reason the knock offs can use MongoDB drivers and state they are MongoDB whatever compliant and be not because their stuff has nothing to do with MongoDB server but I digress). Nothing prevents you from utilising MongoDB Community in your own project/solution as DB backend.
Why would it be relevant to talk in terms of market revenue in this case?
It's because they value short term gain over long term gain and stability. I see it all the time in software development too.
I use it in test suites, where the tests are simply to check that something compiles, not its behaviour, for example https://github.com/tomjaguarpaw/product-profunctors/blob/faf...

I had also thought that there was a reason one could need that pattern to import instances even in the absence of orphans, but on reflection I think I was mistaken.
"block letter writing by an adult is considered a mark of poor education"

Are you sure about that? It isn't uncommon to require it on forms. Also, Europe is a big and varied place - perhaps it is just one part of Europe? Where in Europe were you referring to?
The general expectation when running an application is that when you misconfigure your system, the firewall will at least block incoming traffic. If I run ./program, the system will prevent me from fucking up too badly, like it should if I docker run vendor/program, that extra layer of defence is gone.

Most programs still bind to 0.0.0.0 and that's not a problem if your firewall works the way you expect it to. Docker's firewall rules overriding UFW's firewall rules without notice is unexpected for many people.

I know I fell for this one years ago when I first messed around with Docker, luckily I wasn't running anything important.
This is idiotic. A website links to a resource somewhere on the Internet, the user decides to visit the website with their browser, and their browser fetches the linked resource.. This is literally the fucking point of the fucking Internet.
Wokeademia (2020)
feels like this is part of a larger pattern of corruption up and down institutions in western civilization. everything is gamified, monetized and rigged.
Batman made exactly the same thing for Commissioner Gordon to use… the Bat Signal.
What is really needed is expose the JIT pipeline to upstream. We are buying 10,000 parts but need 100 per week, figure out what works with your production pipeline to deliver at that rate or above.
Not often I see people trolling like this on HN.
The multiplicative inverse, or reciprocal, or the inverse of a number, is a function acting on a number, 1/x, or x^-1.
> Are the deliveries continuous and not bursty

They are not "bursty", but they can fluctuate. Power fluctuation, fuel shortage or upstream supply chain issue could cause a building to skip a production cycle - and impact all its downstream. In fact that is a core challenge in the game. So the core game logic has to be simulated, not calculated.

Doing multithread in JavaScript (via WebWorker) is kind of painful.
Yes, the article is good but that's where it goes off the rails. There's lots of talk about how MS has 96,000 "talented engineers". Yeah? Where are they then?

My experience of Microsoft products in the past decade, both Azure and Windows, as a developer, has been extremely poor. The decay inside the Windows org has been very sad to see in particular. Windows was never exactly bug free but it had a certain robustness about it simply due to the sheer weight of apps using it. The Win32 docs were extremely verbose but mostly did tell you what you needed to know. But, those apps have been evaporating for 20 years and it shows.

From the perspective of a developer trying to do stuff on Windows in 2022 is an exercise in frustration. Nothing modern works right and their developers don't seem to know or care. Trying to do absolutely basic tasks using their recommended approaches will yield an un-ending stream of stupid, impossibly basic bugs. To name just a few bugs I've hit in recent times: they've managed to screw up things as simple as taskbar icons, downloading files from web servers correctly and restart apps after an upgrade. I never thought I'd find myself actually liking Win32 but it does at least tick all the boxes and the standard code paths are bug free.

Nothing about this experience radiates experience or talent. It leaves you with the constant impression that everyone working on the Windows team is a new grad who learned C++ 3 years ago and is shielded from the reality of what their customers experience by a wall of even less talented program managers whose primary job is to post vague reassurances and empty promises to (badly implemented) web forums.

That's Windows. Azure was little better. Again my experience was one of incredibly simple bugs in basic functionality, like holding TCP connections open for more than a few minutes. The fact that people keep finding "root@azure" bugs is also indicative, because usually these reveal that there's no defense in depth of any kind.
That sounds like an excellent subscription plan, I'm sure they sell those services already.

Of course Amazon assumes that you know what you're doing, so it won't include such scans by default. If you set up a container to be world accessible, you're probably intending to do so, otherwise you wouldn't expose it like that.

If you're unsure, you can always pay extra to have Amazon verify such things for you, but they're not your IT infra manager and neither should they be.
Ask HN: GitHub and Bitbucket end support for password auth for CLI - Now what?
When username/password based authentifiction ends for command line interaction (git push, git pull,...), I want to switch to SSH key based authentication. Since I have not much experience here I want to explore best practices.

My scope:

I have tons of repos on Bitbucket and Github owned by about 10 Bitbucket / Github accounts. They are spread over multiple organizations and cannot be tied together.
Some accounts I just need every few months. I need to access these repos from about 30 different git client machines.

Up to now I used usernames and passwords stored in a excel file. That worked well although I know about this pretty insecure way of handling credentials. But I had a perfect overview over all logins.

When switching to SSH key based authentication, things get more secure but also more complicated. Websites still use usernames/password but command line interfaces require SSH keys. So we have more credentials to manage.

My questions are:

* What are best practices to manage private and public keys as well as all these usernames/password for the web ui's?

* How keep a good overview over all git credentials?

* Can I store SSH keys in my Excel-File?

* How many SSH keys would you recommended for my scenario?

Before I get killed here for using Excel files for credential storage please note that I have about thirty+ years of excellent experience going that way, have tons of managed credentials and think that millions of users have similar practices.
I know, it was a bad joke :P