skysight-inc/HackerNews huggingface dataset:
RSA isn't that easy to understand. It's a trap: it seems simple on the surface because the core mathematical operation is easy, but the actual complexity (padding) often gets omitted.

RSA-KEM (key encapsulation mode) is easy. There's no padding, the only thing is you can't encrypt a message, only a random number < the modulus. Then you run that number through a Key Derivation Function (KDF) and use it with an Authenticated Encryption with Associate Data (AEAD) cipher. That's just simple enough I'd teach it to high-school students.

RSA encryption is hard. It requires OAEP padding, which is by no means simple. I'd not try to teach it to high-school students.

RSA signing is hard. It requires PSS padding, which is by no means simple. I'd also not try to teach it to high-school students.

Every other use of RSA is insecure, often in very subtle and hard to understand ways. Using RSA as a teaching tool about public-key cryptography does a disservice to students, since they (like you) tend to think that RSA alone is useful for cryptography.

And if you can treat an operation like the padding as a "black box" and ignore understanding, then you can understand code-based cryptography the same way: treat the code as a black box, and the math is very simple.
Well I think the console war is sadly over because streaming is the next big thing. Clearly MS knows this, Sony is still sticking their heads in the sand.

However, being able to play the latest games with an Xbox subscription will bring many to the platform, instead of buying PS games at full price. In that sense they are still competing.

As a gamer I'm not happy with streaming. I want to run my stuff locally, have the ability to run mods etc. But I doubt we can do much about it. After all, it makes the publishers' wet dream of perfect piracy prevention come to life.
It's not just that it's not currently run meritocratically, but that naive attempts to make it meritocratic make it less meritocratic. The easiest-to-achieve meritocratic tools are the ones that benefit the people already benefitting from the current system.

It's not clear that there is any way at all to make a true meritocracy, since "merit" doesn't have an objective definition. The people who make the definition will always be biased, and will usually do so to favor themselves and people like them. After all, they're meritorious enough to be in a position to make the definition, right?

But even if such a thing exists in some hypothetical universe, it's not the universe we live in. The important part of the article is that it's a belief that you can get to a meritocracy piecewise that leads to errors. Doing the easy things first makes it less and less likely that you'll ever get around to noticing the people being excluded.
Have you considered looking for a job outside of the west coast because inflation adjusted price per square foot hasn't actually changed for a lot of the US [0]. It's mainly just the west coast where home prices have ballooned (in the US at least).

[0]: 0]: https://www.supermoney.com/inflation-adjusted-home-prices/
For more on this, see Olbers’ paradox - https://en.wikipedia.org/wiki/Olbers%27_paradox
"As an Indian"
I think it would be hilarious to get a company email that uses only the subject line. I miss getting "announcement EOM" emails (EOM indicating the end of the subject is actually the end of the message).
It depends on what you're looking for I guess, my understanding is:

There are 3 major omega 3 fats people mostly talk about, ALA, DHA, EPA.

ALA is transformed to DHA & EPA through different mechanisms in the body, whereas DHA & EPA are usually only found in other animal sources.

If you eat enough ALA (maybe more than recommended to increase probability of production?), your body will produce all the DHA & EPA you need.

I haven't read through this study yet but it may be interesting: https://pubmed.ncbi.nlm.nih.gov/9637947/ It seems to indicate eating less saturated fat increases your ability to convert ALA ~5x
The idea that we only should examine and evaluate our systems if we have a better proposal already set is a dangerous one. If you don't understand the flaws in the first system any system you design after is doomed to repeat those flaws. At the same time the people who are criticizing a system may not be the best to design a new one, so putting up imaginary hurdles just works to protect the status quo.
That's right, you would need a job offer and if you were terminated or quit while in the U.S., you would have 60 days to find another job and get sponsored by that company or file to change to another status.
Show HN: Adthusiasts – Local advertisement marketplace
Hi everyone,

We launched a marketplace for local advertisement. The idea is that locals, sport teams, billboard owners and so on can create an account on my marketplace. In the description they are pointing out what they would do to market your business (i.e.if Person: hand out flyers, being a human billboard or just wearing a t-shirt with your brand name on it; Hobby soccer Team: wearing the t-shirts with your brand on play-day). A local billboard owner can also create a profile. Even a wedding party could post their wedding day and look for sponsors. Every profile can add more than one "ad-space".
With posting here we hope to get some feedback on our marketplace. Let me know what you think.
Sign up if interested.

fb: https://www.facebook.com/Adthusiasts/

John
Seems like the kind of thing I should not decide for an user.

When I build websites, I usually prefer using `prefers-color-scheme: dark` in CSS, so the user can decide.
I don't think people should either deceive themselves about the existence of or the downsides of attempting to follow pure meritocracy. Nor should they ignore people who have been disadvantaged.

But when we create a system for recognizing / rewarding / incentivizing achievement, with rules that are not unreasonable, people want others to follow the rules that have been created! Not creating hole after hole in a system to fix things that are not the direct fault of the system.

Social beings want rules and structure to know how to interact and what to expect from each other, and the systems in which they live. You will produce unexpected bad side effects when you keep shifting people's expectations about what seemed to be a reasonable system, that people lived their lives by.

Otherwise, let the picking and choosing of who your favorite beneficiary (today) of semi-meritocracy is continue.
The article itself suggests breaking deep work sessions into no more than 4 hours at a time and suggests several "styles" of performing deep work in terms of fitting individual schedules and personality.
> And since then they've resulted in 17 deaths.

Wait---are you seriously not going to count the people the police have killed? What is wrong with you?

Regardless, my point was not that the protests are justified (although of course they are: for someone who claims to work in "police reform" all you have been doing is defending the police and demonising protestors), but that to not identify the militarised police force brutalising protestors as a more important sign of authoritarianism than "cancel culture" is ridiculous.

That's why I mentioned the protests were started by a murder. Because when you claim cancel culture is this huge problem, and mention a Harvard professor not having one of his duties renewed, I think it's relevant to show how grotesquely out of proportion it is with the George Floyd protests.

> You keep asserting this. You don't show evidence for this.

I'm sorry: in what capacity have you been "working for police reform"?
I'm really getting the feeling that that is an extremely inaccurate description of your job.

I haven't shown evidence for the police brutality in the US because I assumed you were aware of it.
Are you not? Do you not understand that police officers murdering peaceful protestors is an authoritarian crisis?

> If you're interested in solving problems instead of stirring up anger then your interest should be in understanding the problem and not polarizing sides.

All of the "solutions" for how to stop police violence which come from American police amount to (surprisingly) giving the police more money.
Kind of like how all of the "solutions" to gun violence involve giving more people guns (teachers, cops, etc.)

The way to curb police violence is to defund and demilitarise the police. This is what has worked in places outside of the US, and this is the only realistic approach.

> 1. https://nij.ojp.gov/library/publications/effect-higher-educa....
>
> 2. https://inpublicsafety.com/2014/07/how-education-impacts-pol....

This is not evidence for the claim that defunding the police causes a spike in crime.

> That has nothing to do with this topic.

Mass imprisonment is absolutely relevant to the question of the authoritarian nature of the police.

> Violence is not something to be proud of.

You can't think of a single instance of violent protest that you'd be proud of?

> You talk so much against authoritarianism, but violence is the fundamental tool of it.

It's difficult to take you seriously on the issue of police violence when you have yet to even acknowledge the horrific and obvious police brutality during the protests.
Ask HN: Engineering leaders, what blogs/podcasts do you regularly go back to?
Solid resources that continuously bring you value and help you move forward in your job, and that have earned your trust over time.
Evolution. Information == survival. There’s a good scientific overview of how our hunter-gatherer brains evolved to put a huge value on novel bits of information in the book, “The Distracted Mind”.
"The world is a meritocracy" is a bit of a straw man, because who really believes in the Platonic ideal of a meritocracy?

The steel-plated version would be a recognizable descendant of the Middle Ages: as the king is annointed by God, our leaders are too, in direct proportion to their merit. So Donald Trump would be 1,000 times more meritorious than the average person, as confirmed by his net worth.

No one believes this nonsense.

What happens is, individual companies believe they are meritocratic - not the world at large, which they rightfully recognize as beyond their control.

The problem here is that you can use the meritocratic argument against the meritocracies cited in the article.

> They found that, in companies that explicitly held meritocracy as a core value, managers assigned greater rewards to male employees over female employees with identical performance evaluations.

Well... in a meritocracy, your performance evaluation is your merit. They should be interchangeable; there should be no discrepancy between them. Ideally if my performance evaluation is 1.5 times better than yours, consistently, my salary should be too.

I think it's fine to drop the language around 'meritocracy' and just reduce it to incentives: the equivalent of working at a factory, where someone who makes 2x as many widgets makes 2x as much money. Basically these are this department's goals and the people who hit them, based on these markers, make more.

Now I know there are different ways to measure that. I know bias can creep in. But, c'mon: if we both make the same number of widgets as measured by performance evaluation, there is no reason for me to make more than you based on my gender, which is the differentiating factor here and deeply anti-meritocratic, after all.

So if you drop the (apparently, empirically, problematic) meritocratic language, but keep the merit-based indicators and - this is crucial! - stick to them, it seems like you can resolve the issue.
I actually don't really like the cascade.
The page mentions the Log index which is sorted by transaction id. It should be enough to support as-of if I understand correctly.
They might not. Less technically savvy users may not realize that the performance on their "new" video card is less than it should be. Or they might realize too late and miss the window on their return. Or they might just give up because uninstalling the device, packaging and returning it is too much of a pain in the ass.

If this is a "mild inconvenience" to the individual who has to deal with identifying that their product is not what they ordered and returning it, are you suggesting that Amazon--a company with a $1.4 TRILLION market cap--is somehow the real victim?
I'm unsure about your example of James Watson as a successful scientist. He was successful, yes, and was a scientist. But I don't think he was successful as a scientist. Rosalind Franklin made the key scientific insights crucial to figuring out DNA's structure. She wasn't even actually the person that took Photo 51, that was her student. She was, however, the one who presented her insights that the phosphate backbone is on the outside of the molecule, one of the most crucial insights to figuring out how DNA works since prior to that watson crick et al thought the backbone was on the inside. That goes beyond just "contributing" the photo, that's actually generating the scientific insights that unlocked the structure of the molecule before being derided as an assistant incapable of understanding her own data by watson and then dying without a nobel. In light of that, I don't see how watson can get credit as a successful scientist. Crick went on to make other contributions such as codifying the central dogma, watson not so much.
Would be curious to know how many English (USA, UK, Australia, South Africa, etc...) websites use dashes? Did you find any data on that?
The argument seems to be that the Fed's massive QE and Congress' large deficit spending will lead to instability but other candidates for the reserve currency status have their own problems too. The euro zone just announced a large stimulus program for the whole continent. China's monetary system is opaque and is not run according to the rule of law. With a new Biden administration, we probably will return to a more sane decision making process. Probably won't be as China friendly as before but rational thinking will prevail.
You can also clear your cookies. The article was paywalled at first for me.
I have had luck having Amazon credit me back part of the purchase price when I need to repair what they sent me. Their chat agents have refunded me 20-30% of purchase price for keeping defective items like yours.
Cassandra and ClickHouse are designed to do different things. To flip things around, have you compared the latency of a single-row update or delete in Cassandra vs ClickHouse?
> The viewer journalctl is probably the worst log viewing app that exists

Completely disagree there. I've had quite a pleasant experience with journalctl. It has sane arguments and you can easily grep any relevant log messages from the journal. You can add custom fields to your log messages. You can even get the logs in JSON format to parse log message from any scripts. And you can even use the cursor feature of journalctl to keep reading the logs at regular intervals without having to keep a constantly running process and tail the logs.

I can understand people not liking systemd-journald on account of the binary logs, but I definitely don't understand calling journalctl the worst log viewing app.
All good points. I would add that democracy in the workplace, which affects most people's day to day lives far more than that of the government, has been decreasing for decades, with the decline of unions and skyrocketing of wealth inequality.
I don't think its acceptable at all. An easy return doesn't fix having to wait an additional at least a few days before you actually get what you paid for.

That is just basically accepting that Amazon is completely unreliable for anything even remotely time sensitive, despite what made them huge in the first place - extremely fast delivery.
> For 100 hours, between Dec. 18 and 28, Hubble stared at a patch of sky near the Big Dipper’s handle that was only about 1/30th as wide as the full moon. In total, the telescope took 342 pictures of the region, each of which was exposed for between 25 and 45 minutes.

How did this work? 342 pictures at 25 minutes each is already well over 100 hours. At 45 minutes, it'd be 256 hours.
Seems a bit disingenuous for the creator to scrape public info and then charge for it. Like everyone else has said, can't see what the product is, but to pay 20$ a month for notifications and a "community" that could contain 1 person or 10,000 people seems a bit much.

I think it would be beneficial to reposition to "Help find the best IPO to buy" because saying that this data doesn't exist for free is just not true and makes me a user feel like you are running a get rich quick scheme.

Not to say that there isn't value here. I think people would love to discuss IPO's and making it easier to do research, etc. is definitely a value add. Just think the messaging needs to change.

Also, you mentioned that the 20$ (or 240$ per year) will be made back and from an investment standpoint, that's also not necessarily true. Think it's praying on the misconception people have that IPO will always be profitable so I should pay 20$ to invest right away.
Apple Silicon Support in Hopper Disassembler
While I think there might be a grain of truth here I really disagree with how he states it. He seems to be really placing higher value on the isolated genius who does great things despite society being against him. This seems to be based on a lot of pretension and dismisses people who do not think like him.

With how he defines conformity and nonconformity one could argue that the flatearther surrounded by non flatearthers could be a nonconformist. I would argue it's not conformity or lack there of that leads to effectiveness, but instead an indifference to conforming leading to a pursuit of the truth regardless of if it is mainstream or not. So I would say his quadrant system does not define the independent minded person he talks about later in the article.

I think he is in the right ballpark when it comes to pointing to the clear eyed visionary who is willing to look past the orthodox of those around them. But I think his formulation of such an idea is reductionistic. People I would view as conformist have their own worldviews and often pride themselves as nonconformists. Worldviews are a complicated thing and if we write off the majority of people as "sheep" or just part of the problem we become part of a contempt culture that can be really toxic.
Way more so. The thing was made out of solid magnesium. The NeXT Cube had so many amazing features it hurts my head just to think back on it.
I'm not arguing against IPv6, just explaining how IPv4 can be easier to use.
The author really just brushes over the David Shor situation, because his absolutely indefensible firing more or less obviates this entire essay. You can write it off as just random noise, but it progressed exactly how critics of cancel culture have identified as the way cancel culture exercises power to deleterious social effect.

Note that the biggest proponents of cancel culture have seen no need to think about that event, which highlights the core issue with granting some people inherent epistemic privilege over others: it attracts the hucksters and con artists who can claim that power like a moth to flame, and the culture immediately rejects any antibodies against them as racist/sexist/transphobic/whatever.
NeXT was conceptually interesting. It had a magneto-optical drive and, as I recall, one of the pitches was that in a world of expensive computers and slow networks, especially in higher education it was an interesting concept that you could carry around a removable disk and essentially make any workstation "your" personal workstation by inserting your disk.

And, yes, Jobs was quite the salesman. I wasn't at the original announcement but he reprised the announcement for the Boston Computer Society in Symphony Hall. (Which also says something about the size of the BCS at the time.)
Yeah I personally believe a senior engineer or lead is defined by the latter married to the former and that the latter becomes much more important at that level.

So I agree that defining the useful characteristics to evaluate for merit is very difficult. I personally don't know what the right system would be I just more often then not see people who have no business being at the senior level or management level etc etc have no business being there as I would evaluate it.
Hey there Peter, my dad got to submit petitions for both my grandma and me for U.S permanent residency just before the pandemic blew up. How long does that usually take? and Do you think it will take even longer because of the pandemic? I'm 28 and my grandma is 85, we both live in El Salvador if that makes any difference/is of any relevancy.
Thanks!
I think that's a very interesting point.

I think software 'engineering' is uniquely ambiguous in this regard, because software development as a discipline is in equal parts both design, and construction, and the design part bleeds into the 'construction' part, corrupting it (for want of a better word) in a way you would imagine that 'pure' engineering would not.
By stating it "wasn't company policy", I had imagined it was clear it was a personal decision, overriding the rest of the company. I have updated my comment to reflect this.
It really is not that important. Solve the atmosphere problem, and the surface radiation levels would be plenty low enough. Additionally, even without a magnetic field, it’d take on the order of 100 million years for Mars to lose an atmosphere if it were terraformed. Earth, due to Sun increasing in temperature, may become uninhabitable in about ~250-500 million years without active measures as well.
Plenty of people have, and plenty of countries have it in some degree or another.

Americans tend to reject it entirely out of hand as it smells like vile socialism to them.
Hang on a sec. Mixing in defective product is literally fraud.

Payment for order flow is not only legal, but good for retail investors. It, and practices like it, are the only reason joe schmoes can go buy 2 shares of TSLA in their robinhood account (actual traders deal in round lots - 100 shares. Price levels featuring less than 100 shares aren't even protected price levels!).

There's also the technicality of the wholesalers technically providing a very small (<=1 cent) price improvement, but retail investors don't care about that.

I really object to the frankly callous and irresponsible bandying about of financial stuff like this. It damages trust in what is potentially one of the best-regulated and most efficient systems in the world.

I also want to note that, assuming you're referring to Citadel's 700k fine, 1) the SEC's description of what happened is too vague to really infer what's going on, 2) my guess based on their description is that they essentially had a bug that technically constituted trading ahead of a small, small % of client orders (though it does not seem like it was actually getting an advantage by doing so, since it was a bug) and 3) this is all corroborated by it being only a 700k USD fine, which is comically small for a fine from both the SEC and for a firm as large as Citadel. This was the lightest of slaps on the wrist from a regulator who will absolutely destroy firms with fines when they have hard evidence.

If anyone wants to look deeper into this, Matt Levine has written extensively at this point on the subject of the payment-for-order-flow boogieman.
> All successful startup CEOs are not merely independent-minded, but aggressively so. So it's no coincidence that societies prosper only to the extent that they have customs for keeping the conventional-minded at bay.

This seems very conventional-minded, to use Graham's terminology. Thinking that technological innovation is the hallmark of a prosperous society is conventional thinking, at least in Western Society. As is espousal of capitalism, democracy, etc.

I don't see aggressive independent-mindedness except in criminals, dissidents, and radicals. He repeatedly asserts that tech CEOs are independent-minded mavericks, but I just don't see any evidence of that.