skysight-inc/HackerNews huggingface dataset:
That is to say, rewrite each sqrt(N_i) as P_i * sqrt(Q_i) where P and Q are integers and Q contains no squares. So 2 becomes 1 * sqrt(2), 4 becomes 2 * sqrt(1) and 8 becomes 2 * sqrt(2).

Now, you can subtract equal terms from each side of the equation and if you can reach 0=0 then the numbers are equal. If you're left with something like sqrt(3) = 5 * sqrt(2) the the numbers are unequal.

This stems from the fact, that I give without proof, that for integers X, Y and Z that contain no squares that sqrt(x) + sqrt(y) is never equal to sqrt(z). So there's no way to (say) add a bunch of square roots of 2 and have it become equal to a square root of 3 or 5.

A number contains no squares if its prime factorization contains no repeated factors. Since this seems to involve factorization, plus a step of matching up numbers from both sides, the computational complexity would seem to be at least the complexity of factorization. The term-matching step is presumablty the easier step of the two.
It’s relevant because it’s not “people are too stupid/naive” but rather that most people have different priorities. If you want people to use a new system, you need to have it do something they care about better than the status quo. That’s why I suggested learning from history: the reasons why people moved from personal sites to Facebook/Twitter/etc. are important for anyone trying to get them back.
It can be an economy, but more of a disneyland economy totally supported by an external flow of cash. Someone has to make the energy/food and provide services for the masses before those masses are available to make luxury goods for the rich.
Tesla Cybertruck prototype shown in detail in new leaked walkaround video
> Based in Bermuda the Leather Bound Ledger is bound by the laws of Bermuda and thus ultimately the Judicial Committee of the Privy Council. The privy council can trace its origins to the Witenagemot of the old Anglo Saxon Kingdoms over 1,000 years ago.

Fascinating. How much interest have you had?

Blockchain NFTs do about $800k/day in sales, mostly on the Ethereum book, which is worth about $23B.

How many NFTs are being add to your book per day? How much is the total value of that book worth?

If your book and the value of the ownership that it annotates is larger than Ethereum, then you've really got something special going on, and all these crypto bros should probably give up and join your project.

Now you might be thinking "that's not fair, this is a growth project! we just started!". Ok, maybe you've not displaced Ethereum yet, but you will soon.

Are you experiencing hypergrowth? Are investors clammoring for a share of your book? If so, I'd like to learn more about what they find interesting and how I might invest. If not, it sounds like your project might not be a good investment opportunity.
Well, to be honest a whole lot has been done to FreeBSD network stack scalability quite recently (14-CURRENT), eg introduction of epoch(9) and the routing nexthop patches.
As seen most recently here https://news.ycombinator.com/item?id=28584738
What is a religion, if not an extension of citizenship overlayed onto existing governments? It's basically additional rules you follow, with some benefits of membership.
Those ETH gas fees are crazy. I recently had to pay ~25 USD to throw a few hundred bucks worth of TIME on wonderland.money (do not recommend if you like making money). I recently sent 1000 USD to Tunisia via Western Union using my debit card, and the fee was $7.
What's even more hilarious is that "Web 3.0" has already been used for another (failed) evolution of the Internet -- the much-hyped switch to the "Semantic Web" of the 2010s.
I was in installing from ISOs. Didn't realise there were prebuilt VM images, so thanks for that.
A)wasn’t hard to see covid coming, no insider info was needed. 2 years ago I, an insurance adjuster with no inside info, was freaking out about what was happening in China.
B)The unwinding of the covid trade has nothing to do with the current stock market implosion. Peloton and Netflix aren’t down because covid is ending. All stocks were inflated because of a decade of quantitative easing and 0% interest rates. Some were further inflated more due to covid. But the money printer has stopped going brrrr and interest rates are going to rise soon which is being priced into the market. Buckle up, we are heading for recession. Also not hard to see if you are paying attention.
Eh, you could change your source repos/force upgrade etc — just couldn't expect the forums to support your borked system, afterwards.
Japan, Germany, Norway, Italy, Spain, etc. all run a national healthcare systems for far cheaper than the U.S. that covers everyone with more or less equal outcomes. The citizens of those countries don’t go bankrupt when getting care. It can be done.

DMV is quite good in my state. The Postal Service does an outstanding job of delivering packages. NIST and the Park Service provide great benefits to the nation. The U.S. military is government run and it does a great job at destroying organized state power. Should we privatize all of these organizations? How about privatizing the court system? Do you really want to live on Ferenginar?
> systemd-nspawn isn't a container. For example it doesn't manage resources such as CPU or IO. Again, the scope is way different and in this case there is a whole slew of things systemd-nspawn isn't going to manage for you.

It does[1]. At the end systemd-nspawn runs in a unit, which can be (like all systemd unit) resource-controlled.

> BTW launchd doesn't have a feature like 'systemd-nspawn'.

Neither does systemd. systemd-nspawn is just another binary, like git ant git-annex. The only difference from git and git-annex is that systemd and systemd-nspawn are maintained by the same team.

But like git and git-annex, most systemd installations don't have systemd-nspawn, but systemd-nspawn needs systemd.

> And how is SELinux a good security module? SELinux with it's design fell in the same pitfall dozens of security systems did before it; ACL-Hell, Role-hell and now with SELinux we also have Label-hell.

SELinux is generic enough to allow for sandboxing of services. But in its mainstream use, SELinux is well design that it allows for reuse of policies. Most people don't care about SELinux, they just run CentOS, install RPM from the repository, and everything works out of the box with heighten security. (= if there is a vulnerability in any of these packages, the radius-blast of the attack is limited thanks to SELinux's Mandatory-Access-Control)

[1] https://www.freedesktop.org/software/systemd/man/systemd.res...
Moreover, what is the fundamental difference between a government and a religion? Should governments be compatible with religions, and should religions be compatible with governments?
And its crashes are generally spiraling upwards. I remember playing a drinking game with the Bitcoin ATM at Google Campus in London back in 2014 guessing if it'd go up or down when the price updated as it fell dramatically from $1000 to $300.
Why would anyone admit something like that in public?
If you told people that the vast majority of people hospitalized with Covid are obese, you don't think that would drive people to address their obesity knowing that Covid is going to be endemic and will always be a threat if they don't?
I would imagine (but note that I'm totally ignorant here) that this bound depends pretty poorly on the degree of the polynomial defining the expression (and pretty reasonably on the coefficients). Then when you sum two algebraic numbers, the degree of the polynomial defining the sum gets way worse (in general as bad as the product of the degrees). I would imagine this is the issue.
Also moving bits is free. Just throw your static content on a non-greedy host.
> Identity management. You don’t need it.

I had the same "This is just ridiculous" thought when I saw that.

The other thing I'd bet is that this person has never had to make sure their infrastructure can pass any kind of security questionnaire or compliance audit. My guess is they would fail in a heartbeat.
> What problem does web3 or decentralization fix?

> rent server from small provider

If everyone rents a server and we make these servers talk to each other, that is what I would call decentralization. If you rely on a server operated and rented by someone else, you are subject to their whims: arbitrary bans, censorship, bait & switch, security issues, downtime, etcetra.

I don't believe web3 fixes this but in I don't think decentralization is in principle a useless concept.. It's just hard to do right and harder than that to get enough people on board. And now with cryptocurrency, it's harder than ever to get people on board who aren't just looking to profit off of their buttcoin investment.
What was your route towards biomedical engineer? That’s the route that I find most interesting right now - especially as I’m getting older. Seeing lots of family in ill health and lots of new medical info we’re getting from then pandemic
Also, not to be missed, this hilarious 5-minute lightning talk about Qtile: https://www.youtube.com/watch?v=r_8om4dsEmw
Let's hope they apply a similar amount of due diligence when the author responds with an offer to look into it for $800/hr with a 20 hour minimum.
Offtopic: are "Show HN" topics with both link and text a new feature? The Submit page still says "If there is no url, the text (if any) will appear at the top of the thread.".

If it's a new feature, I find it extremely useful.
Link or two to get me started?
You have to disaggregate those statistics to account for vaccination status. Here's NYC's dashboard. Huge differences in cases, hospitalizations, and deaths between the vaxxed and unvaxxed population. https://www1.nyc.gov/site/doh/covid/covid-19-data.page#daily

Again, this is very simple. Given that the vaccines work, then this pandemic is over for those who are vaccinated. I'm quite happy to change my tune if it turns out vaccines don't work though.
Make tidy check for magic numbers that spell things
>It's not paradoxical if one side is wrong.

Both sides would agree with that.
It depends on how you process data. I got used to reading a lot and being comfortable with not retaining a lot. I just keep reading more stuff and eventually it sticks.
However, it would be interesting to find some pathological examples of pairs of lists whose sums of square roots compare almost equal if only approximated to some reasonable precision, but diverge absurdly if the fully general algorithm is used, if such pairs even exist.
The Origins of QBasic Gorillas
I'm familiar with the term, having worked in the decentralized space for a few years. However, yes there was definitely some astroturfing going on in the past few weeks. I don't think the web3 mentioners I see on CNBC and suchlike have any clue what it is.
Politicians Need Git
Why the sustainable investment craze is flawed
A JS version adapted from https://notfunatparties.substack.com/p/wordle-solver

https://pdanpdan.github.io/wordle-solver/

main code in https://github.com/pdanpdan/wordle-solver/blob/master/src/li...
systemd unit files are text files, not binary blobs. And it is much easier to grok a unit file than a 500 line init script.
I don't support robocall spammers, even if their tech stacks might contain interesting nuggets.

At best your typical crypto project is just a planet-destroying unregulated casino, at worst it's criminal fraud. I don't care that it might contain cool tech.

The same goes for e.g. ransomware. It might be innovative. It's still a huge blight on humanity.
Not really, FORTRAN is still faster than C for numerical purposes due to array aliasing concerns.
The capacitive touch screen and its features were the one thing that catalyzed the revolution. OS-wise, many competing phones were more high performance/low latency, and the app store didn't exist for years.

So LG could have become Apple but for some poor UI decisions and worse marketing - they released their own capacitive-screen phone, the LG Prada, a month _before_ Apple, but cheaped out on the UI development: no on-screen keyboard, and not using the touch screen to its potential with scroll/page-turn gestures.
copy jpeg meme is rise of anti nft dumbness
It’s interesting how words evolve. Maybe this was different for others, but when I saw the headline, my expectation was that this would be an article about going back to desktop apps with built in updaters, or something like that. Because I’ve always felt the cloud got used as a business-speak version of internet 2.0. So by TPE, my brain saw that and thought “someone’s writing about dieting from the internet as we know it”.

In this case they’re using “cloud” as a drop in for software-infrastructure-as-service. Or “be your own best little cloud”.

Which is not wrong. Maybe I’m the one late to the slang party here. Either way, i still find it an interesting example of how these buzzwords morph over time.
The problem with this approach is that the founders can inadvertently start a pump and dump scheme that crypto comes with.

You want to organize the worlds information and build a search engine.
Okay, you create a google coin. You issue 21 Million coins.

As soon as you announce it people are going to buy in and you will in a period of a few months become a billionaire. With no product. Just an idea.

And then you get to dump your shares on the "investors" and you get to be a billionaire.

There is no incentive to further develop your idea.

Look at what happened to ICP. The VCs got in at 3 cents a coin. Each coin shot up to $750 per coin. Then the VCs dumped it on the retail noobs making a lot of money with absolutely no working product.
I remain convinced Do Not Track was a piece of sophisticated satire. The notion that companies would stop ad tracking because you asked them nicely is so openly ludicrous that no one could have seriously expected it to work.
GDC State of the Game Industry 2022: Devs Weigh in on NFTs, Unions, and More
No it doesn't. Ultimately people and investors vote with their feet (and money) and then stuff is built and gets traction or not. The "debate" about whether web3 is a thing or not or should be a thing is not that interesting.

I guess the reason it pops up on HN so often is that Y Combinator has some money in web3 related projects: https://www.ycombinator.com/companies?query=blockchain

A lot of those investments strike me indeed as unlikely to have any ROI worth reporting on. But they did get lucky with Coinbase. So, a few of those achieving some level of success is not completely unthinkable.
Reads like an automated email they sent to many people.
Rust is delightfully forward-thinking. Thanks for sharing.
> I highly recommend Dan Olsen's documentary

Me too.

It's been posted on HN, without much uptake, e.g.: https://news.ycombinator.com/item?id=30041948

and https://news.ycombinator.com/item?id=30036937
https://news.ycombinator.com/item?id=30027175
https://news.ycombinator.com/item?id=30032406

It's one of those articles that you don't plan to watch through, because it's extremely long, but watch all of anyway, because it's extremely and consistently good.

I feel that I'm going to watch all 2h18 more than once before I'm done with it.
My issue is performance. But I’ve only read about UFS performance. So it might be fine?
https://link.springer.com/article/10.1007/s11739-021-02902-w

> In this large observational population study, we show a significant association between vitamin D deficiency and the risks of SARS-CoV-2 infection and of severe disease in those infected.

There are many other studies that say the same.
for performance-oriented code, the original example, where the argument is stack-allocated in the caller, passed by reference, and used based on the return value, has benefits that can't be replicated in the std::optional<> version.

I like the std::optional<> version and use that pattern some of the time. But if the object being passed/returned to/from do_something() is non-trivial, i don't want the copy overhead.
Prior infection gives far more protection than vaccination, and a combination of both is as good as it gets (although the addition of vaccination to prior infection gives much less additional protection than prior infection alone): https://www.cdc.gov/mmwr/volumes/71/wr/mm7104e1.htm
It's really disappointing to see the author fall victim to the thinking that whatever works well for their tiny use-case can be applied across the board.

Honestly, this seems like an ill-attempt at garnering views to their startup-in-80-days endeavor with a clickbait article.
Your data being locked up by companies and not to be able to be used by others.

Web3 is less centralized in that the user data is exposed and freely available to be composed upon.
For example, when someone makes a deposit (say of ERC20 USDC to earn interest, around 3.0% currently) on https://compound.finance, that data is freely available and the "receipt" becomes another token (the ERC20 USDC cToken). [1]

This token can now be used for other things, on any other protocol, without the involvement of compound itself. For example, there is a "compound" pool on https://curve.fi that allows users to deposit cTokens so that they can earn interest on their stablecoins while also providing liquidity for stablecoin swaps and earning swap fees as well on top. [2] In fact, with this pool, the user can deposit/withdrawal just pure ERC20 USDC instead and curve will deposit/withdrawal that into/from compound on behalf of the user, again, with no involvement of compound at all. (other than interacting with its "immutable" smart contract)

This deposit then gives the user back another ERC20 token "cCrv" that can then be used in other DeFi protocols without the involvement or authorization of curve.

In contrast, in traditional web2, companies gatekeep this information so hard that there are 10B+ companies such as plaid that mostly just scrape user bank account data. Just recently AA is suing The Points Guy for scraping their website. [3] I recall there's even a comment in this thread about someone getting their own scraper banned because they were trying to scrape their own data.

[1] https://compound.finance/docs/ctokens

[2] https://curve.fi/compound

[3] https://news.ycombinator.com/item?id=30013100
I'd say it's a matter of what you try to optimize when you start a business.

I am starting a business now (not related to IT per se, but we need servers/infra). My limiting factors right now are time and money.

I optimize my time by doing boring stuff that I already know: no new tech to learn, and no new techniques to learn. I optimize my expenses by using some free or almost free services, which may involve the "Cloud".

Those are the only things I care about at this stage.
That and half the value of Ethereum and Bitcoin evaporated in a matter of days.

No one wants "currency" that just up and loses half it's value.
Buy hardware for the software you want to use for your comfort and security.

It can't be an afterthought.

Same goes for phones. Buy the right phone, don't be upset you can't load GrapheneOS on your cheap Samsung handset.
I'm glad you enjoyed it. :)
Covid is here to stay, and you can be expect to be infected with it every few years. You probably won't even know it's covid because we will have stopped routine testing. Talk about having zero cases is ridiculous and fanciful.
During the pandemic I moved into a <400 sq ft apartment with my partner and we love it. Comme ci comme ca. Also, please don't get a bigger car, they are usually less safe, often for the occupants and definitely for the people outside.
No I don't think it's about personal sites at all and I wouldn't rely on the limited history of the internet but you'd see decentralized services have flourished until powers at be shut them down or gobbled them up.

To those with different priorities than what I listed (privacy, ownership) they usually care about usability, and decentralized platforms can be just as usable and popular.

I think all the hate is from the powers at be being threatened by Web3 and the power/control it gives users. If they can't shut it down or gobble it up, they'll run hate campaigns and convince smart people to hate it for them.

Noone is hating on Web2 monopoly tech as much as this, let's just love all of the internet.

Ask yourself, why are you rooting against this thing?

But the really really cool thing about Web3 is, it doesn't matter what the haters say, it's here to stay and IS the future because it can't be stopped.

- edit -

> I'm rooting against scammers using something I do care about as a sales tactic for something which has failed to find market demand.

A moral crusade then. Maybe tackle scamming on Web2 first?
You can't know what happens when the cryptocurrency ETH was at $20. You still don't know what happens. In contrast, with companies, we can take some things for granted, as they have to be open about it to e.g. SEC. With regards to the $20, I knew about Bitcoin when it was a couple of USD (during the Occupy Wallstreet movement, IIRC). I liked the idea, back then. But I didn't end up buying any because to me money is a tool, not a speculative asset. And, as tool, Bitcoin was not very useful then (it still isn't, IMO). Yes, I could've bought it back then. I almost did. But we don't know what the future holds, and for every person with my story there's only a few who did buy it in large enough quantities and exfiltrated their profits at a margin of 10000% like yours. The amount of people who lost money from Bitcoin speculation is also applicable, but you don't hear about the losers. As long as you HODL, all those who HODL win (at least on paper), but as soon as large amounts get exfiltrated, the supply goes up, and value goes down. So it is very important for those who hold the asset to share the HODL mindset (as cultish as it might be).
It's the "weaving" part that has non-specific cost. If you have skill at weaving together pieces of the cloud in an optimal way, you can save money. Just like if you have skill in putting together your own infrastructure you can save money. I can see spending money on services, but I don't understand why people invest brain capacity on vendor-specific solutions.
uBlock is starting to become a one-stop shop unicorn!
I get paid across various countries (UK, EU, US) and it's sure easier to get paid with a stable coin than fiat. Ever dealt with a US business when you only have a UK account and they're asking for your routing number? Had a one-day $1000 contract last year to write a quick training document and it took an extra day of communicating with their accounting team to find a solution. And then it takes days to transfer across systems. My normal payment route is EU -> UK -> US which has fees and takes two days, or I can get paid with a stable coin from EU -> US in around two minutes.
It gets posted every so often here but:

https://asmtutor.com/

Is a good intro to writing x86_64.