skysight-inc/HackerNews huggingface dataset:
Elmer multiphysics simulation and CAE/FEM FLOSS [request for testing]
Odd opinion piece hit job on The Economist. Wonder how often the author had pieces rejected.
earwig | LONDON | ONSITE | TECH LEAD/CO-FOUNDER | FULL-TIME

Tech lead/co-founder wanted for UK's first professional home for construction temps

£30k – £60k • 5.0% – 20.0%

Dear future tech lead/co-founder

Link to job spec:
https://angel.co/company/earwigwork/jobs/774420-tech-lead-co...

We're looking for someone to join our team as tech lead/co-founder. We have code but this will need to be rewritten so this is a green-field opportunity for you. Talking to people and running UX/problem/solution interviews is your bread and butter.

What you'll be leading:
Don’t worry if this is a step up for you. We know you’ve got what it takes.
1. Determining our tech strategy
2. Shaping ideas into tech designs and solutions
3. Optimising our dev processes
4. Steering our tech governance

We’re a two-person team at the moment—one from construction and one from finance—and we work at InnovationRCA in Battersea, London. We’re ambitious, we care about people and we believe great teams are made not born.

We don’t mind remote working but you will need to meet us in London quite often.

If this sounds like you, get in touch, letting us know why you believe you’re the one.

Many thanks
Harrison Moore
CEO
Ask HN: Startup founders – have you renegotiated office rent?
Additionally, any luck with cloud providers?

Looking for ideas.
Trollope used to religiously follow a similar motto: "Nulla dies sine linea" - not a day without a line.
I feel you.

> I can backlog it as a bug, but it's not going to be easily searchable.

In my experience, I've marked it as a bug, comment with the stack trace and mark as U. Then when it arises again, hopefully someone searches for a part of the stack and comes lucky or more often than not, I (or others) will hear of the crash and relay the bug info. Bug is updated with any new info and live continues until it crashes again... Not perfect by any means. I'd love to hear how others deal with this
This is a problem in the UK too.

The independent school (aka private school) sector has seen fees double or triple over the last 10-20 years. This is largely driven by rich foreign students, primarily Chinese, sending their kids to these schools.

I don't particularly regret these bastions of class division destroying their reputation for money, but there are a lot of knock on effects. Independent schools used to be one of the few paths for middle class mobility - scrounge enough to send your kids there, and they are basically guaranteed entry into the elite of British society. But these days the tuition is prohibitively expensive and prices out almost everyone. This just exacerbates the class divide even more in the UK.

The main issue though is that independent schools in the UK have non-profit status - so pay NO tax on the fees they charge. With the rising fees locking out most people from access to them, there is very little societal benefit to these schools. But as a taxpayer, I have to subsidize education for the very rich or rich foreign nationals. It's ridiculous.
Alexa rankings might be helpful. Small websites have low rankings
What Changed
I write about topics I'm learning about here: https://timilearning.com/

It's largely focused on distributed systems and databases for now, but that's subject to change.

I have some deep dive posts like this: https://timilearning.com/posts/data-storage-on-disk/part-two... - where I write dig deeper into a particular topic, in this case: how databases work.

I also have posts like this one: https://timilearning.com/posts/ddia/part-two/chapter-9-2/, where I just share the notes I took while reading a book or watching a video. I've posted my notes from the first 9 chapters of 'Designing Data-Intensive Applications' by Martin Kleppmann there.

My goal is mainly to think more clearly about the things I learn by writing about them, and then share that knowledge with whoever finds the topics interesting.
https://thetechie.de - it's a side project where I write and publish technology news for fun
The more I read about how universities worldwide are becoming profit-driven enterprises focussed on providing enjoyable experiences to their ‘clients’, the more thankful I become for my mirthless days at LSE.
I have a personal blog that I posted a couple of times on HN thusfar. It's over at https://bram.dingelstad.xyz
Usually I write about things I'm working on (if I can), planning to write more about a bunch of stuff, nothing too specific tho!

The awesomeness factor isn't really there yet I think, I'll see if I can fit that in there sometime :)

You should read it if you like occasional stories from a gamedev/sysadmin/entrepeneur I suppose?

I mostly write it for myself and try to cater it to atleast someone that would find it interesting.
Well, I wouldn't be so quick with the accusations. One of the Cambridge Dictionary's example sentences for the word sublime is He possesses sublime self-confidence: https://dictionary.cambridge.org/dictionary/english/sublime
> to be honest looking for a silver lining is much more productive than the panic, doom, and gloom, efforts

It certainly is not. The "panic, doom, and gloom, efforts" are what drove us to take action in the face of unrelenting baseless optimism that would have single handedly killed millions. Being afraid of something is not the worse thing that can happen! Please stop acting like it is!
I just started my blog. Fresh out of university. I document my journey starting out as a dev and I cover what helped me get through my journey.

I love my job as a software dev so far and I'm learning so much. But I'm always open to advice. https://kimpremlall.wixsite.com/softwaredevblog
We have the lyrics to the sad song you're singing right now.

That is, we will have them, once someone adds them.
Mobile application security testing methodology and key mobile vulnerabilities
Michael Chrichton wrote about this syndrome. When the economist writes about my job, IT, it is usually pretty good. When it writes about my country, Finland, it is sometimes a bit shallow, but the facts are still right.

https://www.epsilontheory.com/gell-mann-amnesia/
As a subscriber to the Economist, I fully concur with the line you take offense with. It is very self-assured in its worldview. Pointing that out should not be controversial.
Isn't it time for HN to start refusing links to domains that openly flaunt non-compliance with the GDPR?
Indeed. I don't know much about this language, but the x86-64 OS written from scratch in crystal was one of the most impressive things I've seen during my time on HN [1]. In the thread about it [2], it was mentioned that the author was in high school.

[1] https://github.com/ffwff/lilith

[2] https://news.ycombinator.com/item?id=21860713
Doctors and nurses will need PTSD treatment after Covid-19 virus
Actually 1) isn't a good argument. There is nothing wrong with having regular sized services. Most applications already do that. They separate databases from web servers.
Some little improvements I'd like to see:

- an option to mute audio

- a counter to see how many moves I did by now
also in Switzerland. It's a brand by Valora (Kiosk, Brezelkönig, Ditsch, ...)
I once browsed around a local Scribdb equivalent and found tons of internal corporate and government-related documents that I'm pretty sure shouldn't be floating around on the public Internet; I bet they got indexed and included there because of some checkbox or TOC line item on a free PDF conversion tool.
Covid-19 has led to emissions reductions – can we learn from this?
https://bor0.wordpress.com

I blog about math and programming. It is a random collection but mostly (but not only) functional programming, formal verification.
It's a matter of feedback, really. It doesn't matter if a government is selected by the people if the government can control the people more effectively than the people can control the government.

If the company holds very infrequent general meetings and the owners can't schedule extra ones, then the managers are going to rule, irrespective of who "formally" governs the company.

It's like a people's democratic republic: even if the election is fair, the political bureau sets the rules 99% of the time and the congress of deputies only meets once a year - and soon enough the elections end up no longer being fair.
Wim Hof: 'Inject me with the coronavirus'
Relaxing Video Games to Play Inside
And it's surprising how many sites that are half decent on its own, if you visit it without an ad blocker they still have Taboola ads about how person in {your location} got rich in the way they don't want you to know.
I don't know if only reading half of an article is a good strategy to measure the worth of the article. Noticeably before the half-way mark, I saw three things: support of slave-holding south, support of the Suharto regime, and support of Pinochet. I feel like throwing political opponents out of helicopters is a little more than "just an invitation to go boo, hiss when the reader hears the wake-word 'liberal'."
I had a Little Printer, and I believe the article is slightly over-romanticizing the device. It was slow, not only the printing itself but there would also be a considerable delay before it would start printing as everything had to go through the cloud.

The printing paper had very uncommon dimensions and was hard to find. You could buy them from Berg, but they charged a lot for the rolls. There would also be a lot of paper waste due to the "face" that needed to be printed after every job. Cute, but no practical use.

In the end, however, it did what it advertised, and it did so with remarkably few of the hiccups that were (and are still) common for the IoT devices of the time; it was a good "version 1" for an IoT device. It's unfortunate that they never got to make a second version.

After the project was shuttered I bought an Epson TM-T20II. It prints from the LAN, it prints extremely quick, and the standard paper dimensions that it uses are easy to find on Amazon. It doesn't print a cute face after every job, though, but you can buy a buzzer add-on to make it beep after every job if you want.
> It's almost as if rewriting an essentially all-text web site to be a snazzy web app that pushes all the smarts to the client side has some drawbacks! Who could have predicted.

That's not their threat model. 99.9% of people don't think to disable javascript. However at the same time search engines get the full text making the story more discoverable. I wouldn't be surprised if you'd get the full story if your referer said you came from Google too, that at least used to be a thing.
It has Play.

https://www.playframework.com/
How come we don’t hear more about gen x? It is always millennials are lazy or millennials are killing this or millennials are destroying that. Even when gen z does this ok boomer thing, it is the millennials who are blamed of being disrespectful (my understanding is very few of us are doing the ok boomer thing — we are in our thirties now!)
Agreed but ensure much of that communication is through email. Email provides two legal qualities: evidence and nonrepudiation.

If there comes a time when there is an investigation of malpractice, ethics, or a crime all you have to say is that you put everything in email. The company can retrieve the evidence as necessary or obtain the subpoenas as necessary without voluntary disclosure on your part.
WhatsApp restricts spread of coronavirus misinformation
Hmmm. I have an ancient dual Intel 3GHz Xeon Nocona (~2004 I think) with 5MB of RAM :) hanging around.

It's mostly used as a stand for other things (powered off, but has good case) left on top of it.

Although it runs, each of the two CPU's uses about 100w. And the whole thing running flat out is about as slow as an older model laptop.

There's no real use for this things computing power any more, except on the very rare occasion I need to spin up some OS and don't have other available computing gear handy.

So, the whole "all tools are useful" thing is only marginally true for very old computing stuff.
Commercial bug bounty companies like Hackerone and Bugcrowd will suffer the most from the crisis for sure. Even more then pentesters. When there are such cool sites like Openbugbounty, all they have to do with their abnormal pricing is to organize their own funerals.
You’d be amazed how fast people’s ideology changes when reality punches them in in the face repeatedly. Small costs borne by others people you don’t care about don’t matter. Large costs borne by you? People will adjust their actions very quickly and then explain how their ideology has always supported what they’re currently doing.
On Linux you will encounter:

jonesforth.S:1154:10: fatal error: 'asm/unistd.h' file not found".

Here is the solution: https://stackoverflow.com/a/53686051/198927
Yes, the fact that Economist has an obvious political stand should not be taken as a bug - it's a feature. Their fact-based journalism is excellent, and when they take a stand on an issue, it's obvious and not hidden inside some fake statistics or pseudoscience.
Your problem with Vim is that you don't grok vi [2011]
That is entirely your choice. In.my experience, there are many companies out there that provide good services, but don't publish any address on their website. I am sure that you could get one if you ask nicely. It just doesn't make sense to post that info publicly in every case.
Why exponential growth is counterintuitive
My blog is my comments here on HN as responses to economically active workers reporting or gossiping - I do not comment often because constant activity becomes encumbered with redundancy (in the form of responses without new experience - I tend to exercise responses with random workers IRL by word-of-mouth in different industries while performing physical labor before making them permanent text on HN).

I've left 2 comments tonight so I am bending the rules a bit (whiskey + quarantine keeping me out of Tesla production).
https://www.lewis8s.codes

I mainly make guides on how to use technologies such as Kubernetes and AWS amplify. Feel free to post any criticism.
Wouldn't this lead to a two class society, much like the accredited investors for startups?

E.g. if you have a task to do for which you have to reveal secrets, how do you protect your moat without non-compete clauses if you hire employees or contractors? In other words, you need people who are allowed to sign away their rights. If you don't allow this as a default state, you have to hand out licenses to those who understand the issue.

Right now, you have the concept of Age of Majority [1]. We simply assume that everybody who is old enough is capable of understanding his rights. If you question this, you will have a funny presidential campaign where you ask people to vote for you because they are not competent enough. That said, how is the president the right person to change that law?

[1] https://en.wikipedia.org/wiki/Age_of_majority
I’d be careful about wholesale dismissal of Medium. It has many, many personal blogs; some, rather badly-written. The platform may be slick and polished, but the content is a different matter.

Some of the best tips and techniques that I’ve learned, have come from "scruffy" Medium posts.

My own presentation tends to be highly-polished, but that’s because I’ve been writing all my life (never professionally). Not many folks read my writing, but it’s something in which I take some pride, so it comes across in a fairly slick manner.
HP-12C, been there since 1981
Might as well spend 10% more, and double the per-tape capacity to 12TB:

https://www.mlogic.com/products/mtape-thunderbolt-lto-8
I don't have a blog but this is a great idea and I would love if it was a a regular thread. I would also love any tips on how people are currently going about the task of wrangling a list of favorite blogs into a feed. Does everyone still have an RSS? How do I find the url for it?
Automation of epsilon-delta proofs is in its infancy. Currently with an interactive theorem prover like Lean, you type in the proof yourself, so it's pretty much exactly the same as doing it on paper, except that you can't make a mistake. For example here is a website giving a proof of the squeeze theorem

http://wwwf.imperial.ac.uk/~buzzard/docs/lean/sandwich.html

and if you click on a line in the proof, and then on a little grey rectangle, you will see the state of Lean's brain at that point in the proof. But the proof is just the normal proof and a student writing the proof in Lean has to just write the normal proof, but in Lean's language rather than in mathematical English.
As a sometime-reader I find the clear worldview refreshing. While clearly CNN has a particular worldview, they constantly try to remind people that they don't hold that worldview, in order to convince people they are impartial. Same goes for basically any media, the different is between if it's clear or if they are trying to seem impartial while not being so.

I'd much rather news organizations be clear about their view, so I as a reader can keep that in mind and also look at the opposition view, because that other news organization would also be clear that they do hold the opposition view.
But that is the exact description of the tone the magazine uses in its opinion pieces. Unlike most of the news outlets, they don't confuse facts with opinions. You know exactly which type of article you are reading thanks to that tone.
There are lots of monuments of this nature across eastern Europe and the old Soviet republics. I watch a popular YouTube channel where a British guy seemingly spends most of his time traveling around old Soviet places and visits lots of these monoliths (also bus stations, railway stations, anything that acted as a sort of 'monument' in Soviet times): https://www.youtube.com/playlist?list=PLqWdYjn21PdH_SfBbtj7Y...

I prefer the big monuments like spomeniks myself, but mosaics seem to be a particularly popular form of monument too, especially in Ukraine: https://www.kathmanduandbeyond.com/photos-soviet-mosaics-for...
I don't think that's an actual article from The Economist. They describe Open Future[1] as a festival in which you, "Hear discussions and debates mediated by journalists from The Economist and talks by prominent figures from across the political spectrum, as well as contributions from innovators, entrepreneurs, critics and connoisseurs."

The Economist's own articles don't typically have bylines like that one does, and the "Copyright © Yuval Noah Harari 2018" at the bottom suggests to me that it was an outside contribution to their festival. Maybe as the topic starter for their online debate event?

[1]: https://www.economist.com/open-future/2018/04/16/a-letter-to...
The SeL4 Foundation: What and Why
You are right that I had not paid close attention to decisions.

I see no particular reason why Bayesians should be better at being decisive. They should make better judgments given the available information. But they are not necessarily any better at making decisions and moving on.
For another alternative, I found this interesting VR title on steam: https://store.steampowered.com/app/552770/Speech_Trainer/
please, don't limit your radius of action to curation, open source movement has a lot other news to impact positively. Also big "known" projects but covered properly will help. I will follow you for sure
I would love to see Britain become a republic some day for their benefit (up to them of course to vote on that), but agree they need a better hero.
> Do read it. But don’t start with the leaders. Start at the back where the world often appears in a less tidy and more truly thought-provoking form.

I think this is a good takeaway.

I have been reading The Economist for ~ 10 years, a period in which my world view has shifted quite a bit. In the beginning, while still in high school, I essentially treated The Economist as the word of God (it's funny to see that that's actually what they were going for: when one young recruit was facing the challenge of composing their first leader, the advice they received from a senior editor was simple: “Pretend you are God.” ). I had no awareness that the publication followed an ideological line, I simply thought that that was the truth and everything going against it was simply wrong.

After having left my native country to study and subsequently work in a bunch of different places, personal experience has clarified a lot of the misunderstandings I had about Western capitalist societies.

I continue to read The Economist in its entirety every week, but I now see it partly as a source of information about current events and partly as the mouthpiece of the current ruling class.

As long as you are able to correct for its biases and to not get too annoyed when they are blatantly partisan, The Economist is still a very useful and sometimes entertaining read.
IP level multicast routing turned out to be too difficult in large scale. There are a several somewhat subtle reasons and mis-incentives, perhaps the most pressing being scheduling and time and bandwith synchronization between receivers. TCP does not work there...

The problem was solved by application level "multicast", or content delivery networks. You can keep your TCP and all your regular clients.
> I have to subsidize education for the very rich or rich foreign nationals

Not a penny of your tax goes to subsidising their education. The charitable status of private schools means that the money used for their education isn't taxed twice.

I agree that private schooling tends to exacerbate divisions. The majority of state school provision in the UK is atrocious. I have more concern that very little is being done about the second rate schooling we have than I do about the, relatively small, amount of first rate schooling in the private and state sectors.
> However, let's go back more than 35+ years, to a simpler time. To the 1960s. To the dawn of the TTL era. Texas Instruments made a device called the 7473. It was a J-K Flip Flop. But it responded to a pulse, not an edge. Look at the function table in the datasheet: https://www.ti.com/lit/gpn/sn54ls73a

The 7473 next-state truth table in this datasheet is symbolically misleading; the specified timing constraints on p. 4 make it a lot more clear, and it's consistent with IEEE Std 91 terminology cited.

To be sure, 7473 is indeed an edge sensitive device; IEEE Std 91 references this as the pulse-triggered flip-flop--a.k.a. master-slave flip-flop--and its description on page 1 of the referenced datasheet corroborates this (my emphasis):

> J-K input is loaded into the master while the clock is high and transferred to the slave on the high-to-low transition.

In other words, the internal output of master stage is opaque, while slave stage output Q/Qnot does not change until the falling edge, which is quite distinct from the output behavior of a latch.

> To wit: For these devices the J and K inputs must be stable while the clock is high.

Reading the datasheet further, the 73A variant apparently improved upon the original 73 design by allowing for input change after the rising edge (i.e. while clock state was high) so long as the specified t_su = 20ns min setup time before falling edge was satisfied. Also observe the 73A's 0ns min hold time after falling edge in conjunction with no min CLK low pulse duration; this clearly allows for much faster operating speeds by exploiting clocks with greater than 50% duty cycle. In contrast, the 7473 was capped at less than 15MHz = 1/(t_whmin+t_wlmin) = 1/(20ns+47ns) per specified timing constraints.

P.S. Props for teaching yourself TTL as a kid. I recall my pops (who's in his 50s now, if that's any indication of my age) once tried explaining clocks to me as a "computer literate" teen and that went waaaay over my head at the time. The magical allure of it all ultimitely led to the whole EE thing today.