skysight-inc/HackerNews huggingface dataset:
Ask HN: Is abc.domain.tld. a sub-domain of domain.tld?
Assuming "abc" is an A or CNAME record and not an NS record. For example a standard "www" record.

It is widely considered a "sub-domain" but I'd argue it is not, but a "regular" hostname (in case of aforementioned record types) instead.

Reason for that logic would be that a (sub-)domain is a domain/realm of entities (records managed via its nameservers). An A record would not satisfy such a definition.

Taken from Wikipedia

> A domain name is an identification string that defines a realm of administrative autonomy, authority or control within the Internet.

Though Wikipedia also follows the standard definition - https://en.wikipedia.org/wiki/Subdomain

I wonder if this is a similar misnaming as when people regularly confuse traffic and bandwidth.
I grew up on Point and Click games. I'd love to see them make a resurgence. I tried using Adventure Game Studio a few years back after seeing some games made with it, but it wasn't intuitive enough for me to use it. I'll have to check this out.
I'm middle age and have begun to feel as if I'm being surpassed by younger engineers who've had more relevant CS and engineering curriculums in the 15 years since I got my bachelors.

I enrolled in a masters of CS (online) at a prestigious university and was able to complete the first 3 credit course. I enjoyed it and did well, but ended up dropping the next course. My thoughts were:

* At the pace I was going, it'd take at least 5 years to finish (3 credits / semester). While working full time, it meant that at least half my weekend was spent on course work, and often times the other weekend day and a few evenings within the work-week were also. Looking at the next 5 years of my life being consumed so much seemed daunting.

* Tuition cost is insane these days, even without all the on-campus fees, expensive text books, etc. The masters would have ended up costing about $60K by the time I finished.

* From a career perspective, I'm not sure how much the it is worth. The software industry just does not value higher academic / professional degrees as much as others, where its often times absolutely required (e.g. law, medicine, academia itself, etc).

* From a financial perspective, it seems that grinding Leetcode and "studying" interviewing would be a far better use of time. A masters might end up providing a $10K / year salary bump for the remaining 15-20 years of my career. A FAANG position might provide $100K+ / year increase... or more now that FAANG salaries are hitting $500K+, while typical F500 engineering are still stuck in the $150K range - a true bimodal situation where Leetcode and interviewing skills have a 100X ROI vs a masters.

Though, I wonder if in 10 years the masters would have brought me more personal satisfaction (accomplishment, prestige, etc) than the extra money (assuming I even follow the Leetcode/FAANG path to big bucks).
To me LinkedIn is simply a marketplace for resumes that recruiters research to find people they match to their positions. They then contact you. It's also for maintaining a professional network of current and former work associates to get possible job leads if you're looking or they need to hire.

All the other stuff seems like filler material to me so I ignore it all.
The issue many have is the union dues. If the union doesn't help me, but still take 5% (or whatever) of my paycheck, I'd be pretty peeved off. It's the same issue many people have with raising taxes: politicians tout all the benefits it'll allow, but then costs go up and no visible product results.
And shockingly, Canada has less than the US...
Individuals, even stellar performing ones, also have significantly less bargaining power than the collective bargaining power of either a union or the employer.

There are plenty of companies that know this, and it is the primary source of their antagonism towards unions.
Why would a virus become unviable just because it's embedded in a smaller droplet?
At one place I worked, I discovered that an employee had intentionally broken a machine that resulted in more than $8m in losses, but because of union negotiations, no one would do anything about it.

At a different company, a union worker actually aimed a forklift at me, apparently because I was in IT.

Unions historically served an important role, but they're an anachronism in the U.S. -- especially for coders at Google who are literally in the 1% of top earners.

Google SWE's complaining they're not making enough is just breathtaking hubris. There's so much money sloshing around that they could, and should, go work for another startup or start their own, especially as an ex-Googler.
The brilliant app is not bad at this. It takes you through a good learning curve.
People _can_ be awful. I've seen founders, managers and execs bleed people dry - squeezing the life out of critical contributors whole stringing them along with promised of "getting their piece of the pie" that they had no intention of ever sharing. Telling anecdotes about "that one lazy guy who got paid for doing nothing" is tired. We've done that for the last 40 years. Time to try unions again, please.
Yup, money wins, people will fight against their own interest, etc etc
I'm not sure about recommending video courses because... there are so few people who have taken up the burden of producing a full Linear Algebra video course. It's sad. But I would at least say that whether you're following Gilbert Strang or someone else, you should be following with a book as well.

There's another guy, Jim Hefferon of St Michael's College, who has written a full book for his own class and produced a full video course on Linear Algebra (all free).

https://hefferon.net/linearalgebra/

https://www.youtube.com/watch?v=JnTa9XtvmfI

https://www.youtube.com/watch?v=DJ6YwBN7Ya8
You're pronouncing an acronym as a word. Say the 3 letters individually.
Show HN: Online JavaScript notebook for visualizations, data science and ML
Also notable is that proper use of an N95 takes training. Unlike with surgical masks, N95 fit is specific (you normally get them sized when issued at a hospital). In addition, most people have bad habits around mask removal - you should always remove masks by the bands, but people tend to touch the mask surface itself. And with any mask removal, you should always wash your hands (in a particular manner that I'm sure readers are familiar with by now). Finally if, when removing a mask, the user touches the interior of the mask after touching an infected surface then reapplying the mask can lead to infection.

Not doing any of these steps can lead to infections. Simply issuing N95s to a general population might not help, if the population is improperly trained.

Surgical masks "work" by preventing the wearer from spreading diseases to others. In aggregate, this can help a population, but in specific cases it might not protect you. N95s work by protecting the wearer, with only secondary benefits to others (the N95s with "nozzles" on the mask surface provide no protection to other parties, as outflow is unfiltered).
Behind async there is a real actual hardware reality. Accessing local storage (or the network) is slow and you do not want to block your UI.

You say async were all over the place. Either it makes sense because fundamentally, what you are doing IS asynchronous. Or it make no sense because the asynchronous nature of you calls are not important in your design (I don't see why but ok), in that case you can always break the chains by using a promise:

async bar() {
return await baz();
}

foo() {
const promise = bar();
promise.then(() => {}); // don't care...
}
https://sketch.diagrams.net/

Seems to me to be an amazing implementation of online whiteboard
Yes, I meant lower bound. Corrected.
It has already evolved. I don't want to rehash everything here, but I wrote something that made the rounds at the Munich security conference some years back and the bottom line is deterrence to massive cyberattack is via nuclear weapons.

Do you like Moscow? Ok great. Keep the lights on stateside.

That's the policy.

I know it isn't what HN likes to hear but it's not like it doesn't exist. There is a reason the nuclear football has a switch to disable the internet for at least the USA and probably Canada too because of NORAD, etc. Even Matt Tait (aka, pwnallthethings) has talked about the "strategic threats" from the cyber domain of war at a completely unclassified conference in Miami and he ended the talk with a mushroom cloud up. I believe it was the keynote, but I can't quite remember.
Are you sure about that?

If Covid is endemic (seems certain), and seasonal colds (that happen predictably for all of human history) repeatedly create a new wave of media hysteria and political mandates every year, what's the exit strategy for ever ending this medical theater?
Uh Hong Kong wasn't invaded? The British returned control of it to China when the '100 year lease' expired. Somewhat similar situation with a foreign power supporting a democratic government, except support for Taiwan is much more popular domestically in the US.
Penny Codes
what does attrition look like for Amazon vs Google?
Definitely - they’re just not enough to act as a wall for something this contagious.
I think if you make intangible things public you shouldn’t consider them to be only yours anymore.
You can find out if TOR is work8ng by typing in 'what is my IP' into google.

How do you know if your sepf made faray cage is leaking?

Are you going to get an expensive spectrum analiser? Do you know how to use it?

I can go on the street and find a random person who understands networking withing 10 minutes. I have never met a RF engineer in my life.
The VC and investment world in energy technology is quite different then the A16z and traditional VC world or financial heavyweights.

Having had GS invest in companies in the energy tech space in the past and having not particularly great success - I wouldn't think this is a strong signal. More that the financial heavyweights think there is action and they want to get in.
> Removing foreign influence operatives from the comment sections of CNN, WashingtonPost, and Fox News

Even if it didn't fail the first amendment test, and the difficulty of identifying the real identity and nationality of posters, this would be easily addressed by paying some Americans to be propagandists. Or just signing up to existing domestic propaganda organisations and "steering" them a bit. https://www.theguardian.com/us-news/2019/apr/26/maria-butina...
As opposed to CEOs and upper management, who are all lovely people and want nothing but the best for their employees, and are definitely not motivated by short-term gains.
It's also amazing how inflation is treated as some mysterious, unpredictable force of nature that just strikes out of the blue. Recently, I've seen a lecture on inflation from Marxist point of view - and it was a refreshingly intuitive take on the subject that I've never heard expressed anywhere else:

Inflation is an increase in price level. Who sets the prices? Corporations (or landlords). They may increase the prices either because their inputs are more expensive, or to pad their profits. But all the inputs, in the end, derive from someone's labor. There might genuinely be situations when more labor is required to achieve the same output (e.g. drought for agriculture, or mineral extraction got more difficult), but most of the time, the opposite is true - less labor is required to achieve the same output. If wages do not rise at the same pace as prices, somebody is pocketing that extra money

But we never see that inconvenient fact being mentioned...anywhere. Newspapers run headlines like "beef prices up X%", without the corollary - "and the price increase is pocketed by meat packing plant cartel". And it turns out, empirically, that's pretty much what's happening: Corporate profits drive 60% of inflation increases:

https://mattstoller.substack.com/p/corporate-profits-drive-6...
Can you explain, mechanically speaking, how it went to stocks over the last 13 years?
RCS is an excellent messaging system if you completely disregard the fact that the internet exists. It's basically the SMS v1.1, about 15 years too late.

For the rest of the world, I don't think it'll ever pick up at all. SMS is long dead in the past, and, AFAIK, only still relevant in the US. Elsewhere, SMS is for verification codes and spam.
Because if you are a mangaka/anime artist, you'll be pressured to add otaku stuff to boost sales.
The date range given for the discovery (1500–1100 BCE) is fairly late, coming after the Old Babylonian era (1900-1600). Probably by around the time of the first extant writing (3200 - 3000) from Sumer, there were trade networks importing carnelian, lapis lazuli, and other materials not found in the region.

I don't think the interest here is the implication of developed trade networks at that time, but rather that the millet was found at all and what that says about the agricultural practices. For thousands of years, people wrote on clay tables with styli made from reeds, yet we've never actually found such a stylus or know precisely how they were made.
It’s pretty normal for workplaces to have meetings where the main purpose is just some kind of team bonding or socialising between colleagues.
Yep, agreed, and that's why they're terrible majors if you account for the ROI on them.
Can you name a method of large scale energy storage that isn't dangerous if done incorrectly?
Time for me to advocate again for people to use Common Crawl. Please don't slam peoples' websites, look for alternatives before scraping. There are probably other, better options. APIs, data set downloads, etc.

https://commoncrawl.org/
Doing a part time masters was a huge mistake I made in my early 20s. Sure, I learned a lot but I lost a lot of time and picked up a few grey hairs. It really took a toll on my family and social life. It has not benefited my career at all, which is why I tell people to avoid this route unless they have a non-comp Sci bachelors and even then to consider doing a second bachelors instead.

Despite interviewing a great deal since then and getting a few different positions no one in industry has ever really cared about it, except to call my background 'academic' in a vaugely negative manner at some smaller shops. I make very comparable salary to my peers who just have their bachelors. I usually recommend people not to go this route unless they just want to learn for the sake of learning... which I did, but I thought it would help career wise too and it really hasnt. Honestly I think there are a number of people in startups who will actively hold an MS against you, seeing it as a sign of failure. I have outright been told when interviewing that it is being held against me, because successful people don't need one.
That's really awesome. So nice to see someone willing to at least give a man a shot! Will be in touch.
I'm the same. Self taught, brain is not mathematically oriented and it feels like a gap in my abilities.

People will often say something like, "You don't really need math" for programming but that is missing the point, in my opinion. The point is that it feels to me (after many years of experience and working with many great programmers) that people with a mathematically oriented mind tend to find certain common programming realms easier to grasp. It makes them faster and more productive as they almost intuitively "get" things that are oriented in the same manner as their brain already works.

For others (me) I have much more trouble in these areas and have to really pound my head on the problem to even get close to understanding it as fluently as they do. They probably do not realize this but it's a real struggle (I've had a few occasions where the other person seemed genuinely confused that I was not really "getting it").
I guess turning it on is where the problem comes from.
https://fred.stlouisfed.org/series/M1SL

Before May 2020, M1 consists of (1) currency outside the U.S. Treasury, Federal Reserve Banks, and the vaults of depository institutions; (2) demand deposits at commercial banks (excluding those amounts held by depository institutions, the U.S. government, and foreign banks and official institutions) less cash items in the process of collection and Federal Reserve float; and (3) other checkable deposits (OCDs), consisting of negotiable order of withdrawal, or NOW, and automatic transfer service, or ATS, accounts at depository institutions, share draft accounts at credit unions, and demand deposits at thrift institutions.

Beginning May 2020, M1 consists of (1) currency outside the U.S. Treasury, Federal Reserve Banks, and the vaults of depository institutions; (2) demand deposits at commercial banks (excluding those amounts held by depository institutions, the U.S. government, and foreign banks and official institutions) less cash items in the process of collection and Federal Reserve float; and (3) other liquid deposits, consisting of OCDs and savings deposits (including money market deposit accounts). Seasonally adjusted M1 is constructed by summing currency, demand deposits, and OCDs (before May 2020) or other liquid deposits (beginning May 2020), each seasonally adjusted separately.
Also google or any other search engine
Except contractors know the deal when they become contractors. They deliberately want to represent themselves and take the risks and tax benefits that come along with that.

If a contractor isn't happy with the work or conditions then they should move on to the next job.
Could you tell me what you found interesting about Florida?

I am currently in the Midwest and deciding where to go next, specifically back to the West Coast where I lived for a decade, or branch out to another warm state (FL, TX).
I’ve found the opposite to be the case. Masks facilitate increased social interaction as people can more safely meet each other indoors or share a car-ride – which is important when less daylight and colder/wetter weather limit outdoor socialising.

The media are more interested in what’s new and in my country (Ireland) masks have been old news for well over a year.
People generally have this expectation that companies are just made out of money and greedily keeping it all for "themselves", whoever "themselves" may be, but in the real world, a company that makes a 5% profit margin is doing pretty well and a 10% profit margin is amazing. Being in the tech industry can really skew your perception of profit margins because we are in one of the handful of odd industries where that would be mediocre.

Having to proactively raise salaries 10% across the board can easily be the difference between profit and loss for a year. Raising a salary for one person is easy. Raising it across thousands and thousands is not.

It is very difficult for a company to look ahead and say "Hey, maybe inflation is going to be 10% this year so we should raise salaries by a huge amount", especially when all the official numbers are themselves much smaller than that. It was literally only three months ago the Fed was promising up and down that inflation was only going to be transitory. I didn't believe them for a second, but I'm observably faaaar more cynical about governments telling the truth than the average businessperson, and for that matter, the average HN denizen. (At the time, the modal HN position at least by comment posts was indeed that the Fed was correct and anyone who questioned otherwise was wrong at best and possibly a conspiracy theorist.) Do you seriously expect companies to be second-guessing every official news source about inflation?
Who decides who is "incompetent"? What do pronouns have to do with anything?

I don't really see how this is related to the post.
FFP2 has more test then N95. [1]
There are several shapes of FFP the one which is dominating in Austria (and Czechia and Slovakia) is not the only one.

[1]: https://www.wired.co.uk/article/what-are-n95-and-ffp2-face-m...
So ya know the little cards that twitter generates for you when you paste in a link?

Well I made a free little utility that lets you customize those cards!

When you create a link via relink.page you're creating a proxy link that redirects to some target url of your choice. But when you paste the proxy link into twitter it will generate a card from the metadata that you specify during the link creation process. Pretty neat, heh?

Try it out: https://relink.page
The original guidance IIRC is to both wear masks and maintain social distance. My interpretation of this was that if you are wearing a mask, not only are you filtering the air you take in, but also out, and even with a cloth mask, you are at the very least reducing the radius of what you are shedding vs being unmasked and talking out loud.

To me this was all null and void if you are sharing a tight enclosed space for any significant period of time- like a restaurant, or even an office. Then you need something like an N95 to get any significant protection.

I understand people's frustration, but I think its important to remember that organizations like the CDC are trying to make a recommendation that balances many factors like convenience/discomfort vs availability of masks, vs what is actually understood about the transmissibility of the virus in its ever changing forms. Even taking that into account, it seems relatively simple to set up experiments that can test the effectiveness of these claims- and why no one has done this is kind of baffling to me- I am guessing these are prevented by ethics concerns where you will have to expose healthy people to the virus.
Is there any indication that Rust is not the new C++ in terms of language and ecosystem complexity? I just can't bring myself to learn languages like C++ and C# because they are changing at such rapid and complex paces, versus other languages like F#, Elixir, Clojure that are essentially feature complete. I'd like to learn Rust, but it just seems like a huge time investment.
If N95s weren’t effective wouldn’t more medical pros be catching Covid?
D was still fairly young when I was looking at the feature list [0]. The impression I walked away from it with is "Hey, this thing in boost is cool, let's bake it into the language".

[0] https://web.archive.org/web/20110320130326/http://www.digita...
It's probably some kind of hedge strategy for energy crises like the recent Texas disaster (which appears to have been very profitable for GS [1]). Having this capacity around when other sources go down means they'll be able to provide power in similar situations and so reap massive profits. Climate chaos == $$$ I guess.

> Bloomberg March 5, 2021

> Goldman Sachs Group Inc. could gain more than $200 million from the physical sale of power and natural gas and from financial hedges after spot prices surged across much of the U.S., according to people with knowledge of the matter. Morgan Stanley’s gains could come in under $200 million, according to a person with familiar with the matter, and Bank of America Corp. stands to rake in profits as well...

> The historic cold that battered the central U.S. last month led to sweeping blackouts as ice formed on wind turbines and pipelines froze, forcing oil and gas wells to shut. As traders and power suppliers struggled to find fuel to meet obligations, prices skyrocketed. In Oklahoma, gas traded at more than 300 times normal levels, while electricity in Texas surged to $9,000 per megawatt-hour.

Full article:
[1] https://www.investorvillage.com/smbd.asp?mb=5028&mn=126049&p...
I’m willing to be convinced here but how does 2 shitty people convince you that unions are an anachronism, especially when we are in the middle of an effective nationwide labor revolt over how shitty workers have been paid and treated for years?