skysight-inc/HackerNews huggingface dataset:
The Mathematical Experience -- https://www.goodreads.com/book/show/1113522.The_Mathematical...

It's touching many areas. For some it explains how they were developed or the controversy around them (e.g. the definition and use of infinity).
> It's the Flex Tape of the software world.

I assume you are using Flex Tape as a derogatory comparison here. That said, I do view SQLite as a kind of "fix all" in the software world.

It's cheap (free), fast, everywhere and applicable to virtually every type of problem domain. AAA game assets to B2B line of business app storage. It's the most tested and used software on earth.

It doesn't fix everything, but it certainly gives you a fighting chance to make it to the next step.
That is definitely taking the long way around.... Why not just grab a timestamp and base32 it yourself? ULIDs also use millisecond timestamps, and use implementation magic to sort IDs within a millisecond. If you are just using the timestamp portion, you should use micro or nanoseconds.
Show HN: ERD Lab – A database modeling tool built for engineers
Would really appreciate any feedback from this community.

https://app.erdlab.io No registration required to test. No email confirmation needed to register either if you choose to do so.

Here is a 1 minute video of ERDLab in action. https://www.youtube.com/watch?v=9VaBRPAtX08
I think the next $400 unit from Meta will focus on camera-based XR features. The new $1,500 Quest Pro is clearly a trial round for features they're hoping to be able to include in the next consumer unit.
I wonder how good you can get at maths just by casually reading books. You need to work on problems for hours and hours to get a grasp on the theories. Programming is different in the sense that it's something people routinely do as a hobby because it's quite fun and addictive. But maths? maybe if you have already strong foundations you can pick up a new topic and develop your culture. But I doubt one can get these foundations without actually graduating in maths as it's an extremely strong commitment.
It happens in waste-to-energy power plants (a.k.a garbage power plants). They can be a great way to get rid of waste but they require a lot of filtering of the exhaust to be safe. Adequate filtering is universal in some countries (like Sweden). In the USA, waste-to-energy plants frequently have inadequate filtering, which can make them dirtier than coal plants.
Maybe they should be installed sideways.
Have you tried coding with these glasses?
Bro, they brought the girl that talked to me on campus to confirm it was me at the polygraph.
The Nokia 6030 is actually GSM (2G) and T-Mobile still supports GSM phones at least in my region (upper midwest) of the USA. Even while 3G is dropped already. Verizon doesn't though. I had to switch telcos to keep using my 6030 a few years back.
Ask HN: How do you migrate Email and Exchange accounts
Hey guys,

Im looking for tools to use in order to migrate a small amount (around 50) mailboxes from an MS Exchange hoster, to Office 365.

Most of the hard part has been synced already, but now iam at the point where i have drift between the "old" and "new" mailbox because the migration took way longer than expected.

My Ideal software would probably run in a container, but my main concern is that the tool needs to either run with a (modest) cloud fee or at least on linux so i can configure it myself. I dont have a problem with paying for good software, but as the org im representing right now is german, the tool needs to adhere to GDPR too.

What are you using? And why?
That’s still on track to be announced this year and released (may be this year?)
I’m very much willing to believe you when you say you can do it practically, but there’s something logically or epistemically funny about measuring visibility using vision.
I thought it was about biological trees too but the article that appeared to be about trees is interesting so I didn't regret clicking. It's a weird feeling.
In the waste hierarchy, burning plastic with energy recovery and gopf fikters comes after recycling and before well-managed landfill.

This becomes less true as alternative non-fossil energy becomes more dominant though, since you're not displacing dirtier fossil fuels.
This is the awesome content I still come to HN for. Thanks for the post and good luck with Got.
-1.4ish is another square root of 2
Mushrooms are evolutionarily closer to animals than plants, so it's true in various ways.

All life shares common elements, see the large and small mitochondrial subunits (rRNA). They are so critical to producing celluar energy that there are sequences are incredibly conserved, such that databases exists with aligments across life.
Wait until you learn about what's in your intestines/stomach or on your skin...
Yup. "Considered" is certainly ambiguous enough to be a failure in the context of a job application.

When I was working at IBM, a my manager introduced me in passing to one of his peers who was getting a huge promotion, about three levels up. Why such an unusual promotion? He'd noticed a way that 4 people could conspire to exfiltrate $25 million on a Friday and be in some non-extradition country before it was noticed. He had reported this flaw, and they were promoting him for alerting them. He had certainly "considered" quite deeply stealing from his employer, and was being rewarded for doing the right thing.

And, of course, an honest answer on his BestBuy app would have disqualified him.

We can quibble about the meaning, but this is an absolute fail on the job application, unless the goal is to filter out intelligent people who have naturally curious minds.

There is a huge difference between thinking about something and taking action to do it. You have brought us another great example of utter cluelessness in corporate HR.
As a Sidenode, i have tried the integrated migration Office 365 offers in their exchange admin center, but it simply will not connect to the other cloud even though thunderbird and others have no issues connecting to imap
Account was banned in 2020: https://news.ycombinator.com/item?id=25399750
Wait a moment and think about how you are made of meat.

https://www.mit.edu/people/dpolicar/writing/prose/text/think...
Oh, so that’s what turbulence is.
Looks like some rabbis might allow some liberal interpretation so I guess the answer is it depends… Flexibility is good.
The Universal Trust Machine
A survey on the Web3 path towards enabling long term digital cooperation through decentralised trust
The issue I have with this principle is how the strong opinions are presented. It's often not easy to tell the difference between "an inexperienced, non-authoritative, strong opinion weakly held" and "an experienced, authoritative, strong opinion strongly held".

If it's obvious that you're a junior dev -- that you have both little experience and little influence -- then expressing a strong opinion isn't really problematic, because other people will feel comfortable challenging it.

The problem comes as you start to gain experience and influence. As it becomes clear that you do have experience in general, then people are likely to assume that all of your strongly stated opinions are the result of experience, even when they're not. Thus people with a little bit of experience in X, hearing your strong opinion on X (even though you have zero experience) are more likely to discount their experience, rather than sharing their experience with you.

Similarly, people who are coming from the outside -- say, people from other companies talking to a team lead of a project; or contributors submitting to an open source project -- are more likely to hear opinion X as being, "This is the rule for this project", rather than "This is my current opinion, but feel free to challenge me if you think it's wrong".

So if you're going to hold strong opinions, you need to make it clear when you express them that they are in fact weakly held; and the more you grow as a developer, the more important it is.
We could also just bury the plastic, like we do now. Most plastic cannot be decomposed by bacteria, so most of that carbon will be sequestered from the atmosphere.
AR and VR are very much not the same thing.

VR is for replacing reality, AR is for putting (useful?) digital things on top of the real world.
This HN headline sounds like the start of a horror movie
knowing oneself is hard but rewarding work and for me requires self-doubt and criticism and the action that comes out of that, it’s a non-terminating cycle. sometimes peace and joy are involved, many times not. some of these affirmations could be useful, but I’ve always had issues with this overly gentle and kind of self-delusional approach. The road to self-actualization is not opened up by repeatedly telling yourself that what you wish were true is true.

who is this stuff actually targeted at?
Well, it's certainly a better deal than paying $3,000 for the same result?

What I'm trying to say is that Apple introducing such an expensive unit will make people take another look at the Quest as an option to see what the XR fuss is about. $400 is impulse buy territory for a lot of people who might be willing to try out the technology, while $3k isn't.
I dont think price is the problem. quality is. I pay my meat 3 times the price you pay yours because I go to the butcher and don’t trust supermarkets. but fake meat I wouldn’t even eat for free. the taste is too bad. If they could make good vegan meat even at a high price there will be an audience.
It might make sense to read a translation in a language you understand. Many of the books that are considered classics are specifically because they ARE accessible. That doesn't necessarily mean that they are easy, but there is a big difference between reading Euclid and learning how to create mathematical proofs, and taking a class focused on calculating the area of various shapes or determine angles.

I haven't read Mathematical Principles of Natural Philosophy (the English title) but I have read Euclid and it definitely doesn't require a genius to understand. here is an online edition with great illustrations:

https://www.c82.net/euclid/
Mobile usability that can be performed with a single hand/finger is my guess. Creating a UI that is both web & mobile friendly.
He has an answer in this talk around the 11:30 mark: https://youtu.be/eF48Ar-JjT8&t=690
We're going to spend more until the cost of compute is greater than cost of writing more efficient software, then we'll write more efficient software.
Why not use an Apple Watch?

I think the issue with a Google-glass style device is that you can see just as much info on a watch. We already have watches and are socially familiar with them, and watches are out of the face when not needed.

What info could you need that isn’t accessible by a watch? Especially considering a watch can be a simple touchscreen but a glasses UI is…?

The NReal Air is pretty cool, and it’s just glasses with a screen, but is it compelling enough for the price tag? Especially an apple price tag? It’s just a “head mounted monitor”. The problem is that moving around makes it shake and hard to focus on, and it requires a cable to get data and power. Apple probably could make it wireless with Apple Watch internals, but then it wouldn’t be able to stream graphics very well.
Vibecession
Immune cells’ ability to persist and replicate long outlives species lifespan
Burkard Polster and Marty Ross at Mathologer have some wonderful videos visually proving the irrationality of many roots.

[0] https://youtu.be/yk6wbvNPZW0
The classic, How to Solve It by Polya.

A lot of the advice seems obvious in retrospect but being systematic about a problem solving framework is enormously helpful.
Currently supports: MySQL, MS SQL, SQLite, PostgreSQL, Oracle, SnowFlake and more soon.

One important thing that sets ERDLab apart from other tools is that ERDLab allows you to draw your diagram two ways. Developers often prefer typing so we made a simple code editor which allows you to create your diagrams fast using your keyboard only.

If you prefer no-code solution, you can simply hide/toggle the "Markup" sidebar and you can create your schema without writing a single line of code. This makes ERDLab useful not only for developers but everyone else on the team like analysts, admins and even non-technical stakeholders.
Or at least using a multilayered approach i.e. all the files starting with A in the A subfolder. You still have to deal with that amount of files, but you don't lose so much time dealing with filesystem/directory operations.

And that might be better for accessing individual files outside the app instead of a big binary blob that you may have no clue on its format (or corruption/deletion of that single file). Thats why there are no universal solutions, there are many different use cases.
Perhaps this is one of the reasons that I've seen Linux deployments use XFS (e.g AWS). If you page through the filesystem documentation, once you hit a certain directory size, it actually switches over to using b+ trees like a RDMS would.

https://www.kernel.org/pub/linux/utils/fs/xfs/docs/xfs_files... (section 16.2 on PDF pg 127)
Not a guess, this is "the" answer - toggles came around as mobile UI.
I couldn't find a written article that would encapsulate the referenced documentary with a cursory Google search, but the documentary is up in full[0] on YT if you'd like to better understand it.

[0]https://www.youtube.com/watch?v=y7mdAS7KlRw
How is the coverage?

Mine got a lot better when I got a phone that supported their newer 4.5 and 5 g frequencies, so I can't imagine it is great.
Wait, why are you getting that much filtered from the phone screen to the interview?

From my experience, it's just a bullshit step with a recruiter just to check you're not totally dumb.
'Animals and fungi are each other's closest relatives: congruent evidence from multiple proteins' https://pubmed.ncbi.nlm.nih.gov/8265589/
I was completely honest on my form.

E.g. i admitted to drug use, but the firm was so insanely detailed there was no way to be fully honest. It literally asked how many times youve done each drug, who with, whered you get etc. Well for a raging polysubstance addict, this is hilarious. Just listing all the differe t drugs would take more room than there was on the forum and that doesnt even start to account for all the tertiary information they wanted.

I got interviewed of course. Was a very weird experience sitting in an office in my workplace 14 feet from my boss talking about "yeah I did cocain a few times" "why did you stop" "well it feels good but it makes you act brazen, selfish, and flippant. Also it sucks to be around people who are coked up"

Anyway, I got the clearance
Vector Calculus, Linear Algebra, and Differential Forms: A Unified Approach

It's a rigorous but chatty textbook in the style of Spivak but written by someone who is sensitive to applied maths. I would not have survived my astrophysics classes without it.

(Not to mention it's where I first saw this really intuitive way of doing matrix multiplication: https://blogs.ams.org/mathgradblog/2015/10/19/matrix-multipl...)
I don't think I've ever heard anyone suggest that "animals aren't able to think" before. Could you please explain what you could possibly mean by that?
This line of reasoning has been formalized by the Cognitive Behavioral Therapy school of psychology. Read "Feeling Good" by Dr. David Burns to learn how professionals who have made issues such as the nature and quality of one's self conversation their entire career focus. That book and these professionals have significantly higher quality information than this blog post.
Charlie Javice, the Startup Founder Who Fooled JP Morgan
Breaking the existing deployed network every time a new feature is added is unfortunately not a solution for an open ecosystem. While there are obviously limits to how far backwards compatibility should go, it doesn't make sense to deny users basic messaging just because their app doesn't implement calls for example. That would just cause a different set of frustrations.

I wrote a bit about this dichotomy in this blog post a couple of years ago: https://snikket.org/blog/products-vs-protocols/
Almost certainly. They definitely turned over data to the US government to help them locate and connect people of interest (see Edward Snowden's revelations), some of which was very likely used to incarcerate people. Whether you consider incarceration equivalent to re-education is debatable. I find it quite likely that they also did this for other governments with less scruples about human rights.

Either way, pretty sure no US citizens have been incarcerated in political re-education camps in the USA because of data shared with any government by either Google or Tik Tok or anyone else.
I've been winding down my Facebook over the past year or so. Unliking things, unfriending friends, and deleting posts. If you try to unfollow a page on Facebook, the "Unfollow this page" button is turned off, and you must turn it on/check the button (which changes it from gray to blue) to UNfollow the page. One of the many reasons I've been winding down my Facebook.
Depends on your metrics. If you consider land and water use as a factor they are very inefficient. In terms of nitrogen (for fertilizer etc.) we get most of from the air these days (via the Haber-Bosh process). Manure also has a cost as a source of water pollution and food contaminate. The CO2/NOX emissions are a downstream cost. We are paying for these as externalities and subsidizing the industry via our taxes in turn.
If two users are editing the same file this looks like you'll see my edits in your file in near real-time. This is being used to do way with merging / merge conflicts. A few observations:

* I think this makes two devs changing the file basically unusable as you're changing the file and potentially the same line simultaneous which could cause me to overwrite your changes without realising

* It still presumable doesn't get away from the fact I can edit the file with the jam command not running then run it after in which it'll just overwrite my local changes onto the remote without merging

* What does it do if my editor has changes in the change buffer that aren't saved and an update comes in on the same line, then I save. Will my now out of date change buffer overwrite the server version ?

I don't think you can do away with merging and merge conflicts it's a vital part of source control so that two devs can work on the same file simultaneously.

How often does the thing sync, none of the demos really show this. The demo's showed the thing running very often i.e. every few seconds. Does that mean if I'm making large changes to a file it automatically upload every time I save the file ? I definitely do not want that as typically when editing code as I edit I will save something that is in a partially broken / incomplete state. It also precludes the main CI/CD workflows which will normally trigger from a dev uploading something they think will work.

Where is the actual source, the source page links me to here: https://jamsync.dev/download

This just gives a link to a .zip which is presumably out of date now. I presume you are trying to self host this but since you haven't ironed out the details it would be better to use an open source code tool like github /gitlab ...etc for the time being.

You are allowing me to register / login to an "account" on something with basically no terms of service or privacy policy. Not only are you not GDPR compliant but more importantly at the moment you are not limiting your liability! The fact you've stuck this up without limiting your liability you are now partially liable for whatever stuff people are putting up on here baffles me. Seriously for your own good please get some terms of service with at least limitation of liability.

You'll have to also sort the problem of copyright as I wouldn't push code to a service that attempts to claim any copyright of that which I assume you're not doing but I would need that in writing.

Given the frequency of commits that this solution will introduce you'll need to offer way more than 5GB of hosting.

How will that version slider work when I have 500k commits. Even squashing branches, the repo I'm working on at the moment has 10k commits. This is a team of about 30-40 devs and each day is about 15ish PRs. With Jamsync syncing every save I could easily see this going up to millions of commits.
Crypto Media Outlet CoinDesk Taps Bankers for Potential Sale
Join the exciting ROS 2 Hardware Acceleration Working Group on its 14th meeting to discuss progress and updates on how hardware acceleration and custom compute architectures can speed up robot computations.

The goal of this meeting is to review the progress we have made over the last year, report on the current status of the group, and discuss our goals for the upcoming year. The meeting is scheduled to be 30 minutes.
The default on that is always there regardless of OS.
What percentage of plastic do you think is even collected? It's a weird stat to compare the household recycling of bottles and containers (which even in the US gets recycled at a non-trivial rate) and all plastic ever (lawn chairs, toys, complex mixed materials etc.)
The Art of Approximation gave me far more intuition than any class
Yeah, I ended up upgrading my machine's ram when I was building it from source. It's sizable.
> everything used usb-c so iPhones must be usb-c now toooooo

EU agrees with this.
I do not want anything to do with this, but I imagine I'm about to be railroaded into it anyway.

It's bad enough that so many web sites are starting to assume I must have my phone handy and I must have cell service where I'm sitting. I didn't want to give them my phone number in the first place but now they're SMSing me before letting me in, and if I happen to be out in the boonies, unable to receive their six-digit code... they don't have a solution for that.
Absolutely, and there are some really interesting personalities in the history of mathematics. Newton and Galois come to mind.
> I'm not a fan of plant-based meat, this is most likely because of my culture ( I'm Sardinian )

Many of the well-known plant based meat companies make their foods for American consumers. That food taste is not similar to what we are accustomed to in the Mediterranean. You can give a try to Heura's mediterranean items. Its an European company and it knows the Mediterrnanean cuisine well:

https://heurafoods.com/es/productos/bocados-mediterraneos

https://heurafoods.com/es/productos/albondigas-originales

https://heurafoods.com/es/productos/bocados-especiados

https://heurafoods.com/es/productos/picada-troceada