skysight-inc/HackerNews huggingface dataset:
Gaussian Elimination is indeed from the 1820s. All the rest is more recent than that. The idea of matrix decomposition per se comes from the 1850s. The earliest work on something like the SVD is from the 1870s.

You are onto something though. Strang is coming from a direction of numerical computations and algorithms for solving real-world problems. Pure mathematics departments for at least the past maybe 80 years often look down on numerical analysis, statistics, engineering, and natural science, and adopt a position that education of students should be optimized in the direction of helping them prove the maximally general results using the most abstract and technical machinery, with an unfortunate emphasis on symbol twiddling vs. examining concrete examples. By contrast, in the 19th century there was much more of a unified vision and more respect for computations and real-world problems. Gauss himself was employed throughout his career as an astronomer / geodesist, rather than as a mathematician, and arguably his most important work was inventing the method of least squares, which he used for interpreting astronomical observations.

With the rise of electronic computers, it is possible that the dominant 2050 vision of linear algebra and the dominant 1900 vision of linear algebra will be closer to each-other than either one is to a 1950 vision from a graduate course in a pure math department.
I tried to read this but just could not get over his writing style. It just felt so self-indulgent and took forever to get to the point. I have no idea why it's recommended so highly.
I am not even about them, just some regular guy with interest in computer security.

Author did this on a Mac mini so no real horsepower required either.
No, no that's not violence. Violence would be if you hit your child or spouse.
Sorry but I'm downvoting this. It's besides the point IMHO whether or not that decision by the county is right or wrong. Simply defying a public order in itself should be the focus here. If Tesla gets away with this, it will be (yet another...) case of "be rich and the law doesn't apply to you."

Which is short-sighted, since it undermines the rule of law, i.e. the very base upon which people can rich without being afraid of pitchforks.
> I destroyed my hearing by putting loud music over noise-cancelling headphones

Huh? The point of noise-cancelling headphones (at least to me) is that you can drown out the rest of the noise with fairly quiet music.
Seems that you're being downvoted at the moment because it looks like you're making fun of archive.org, but that article is actually rather interesting.

How does this compare to something like IPFS?
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It is. Gets you out of your head, and having a dedicated "idea discussion time" means you have all week to think on and refine your ideas. Less wasted breath on half cooked BS.
Holy shit that is amazing! I'm getting one immediately, what a beautiful concept
Living a long time could be advantageous for the individual but disadvantageous for the society.

Evolution happens at all scales, not just the creature scale.
I have worked in private offices, team spaces, and open plan.

Having a private office was great, but a team space I shared a few years ago - rented just for that team, for around three months - was astonishingly productive for all of us, with almost none of the downsides of open plan.

As far as open plan goes: it is worse for mental health, productivity, and creativity. There is ample evidence to support those assertions ( https://theconversation.com/a-new-study-should-be-the-final-...).

The only advantage open plan has is that it is cheaper, per person, than any alternative - if you only factor in the cost of office space.
> Managers vs makers schedule explains this.

It's like Donald Knuth's argument for not using e-mail. "Most people need to stay on top of things, but I need to get to the bottom of things." The open office works great for staying on top of things, but is not a good environment for getting to the bottom of things.
>I feel like you'd miss out on so much collaborative effort and serendipitous & spontaneous conversations with colleagues that solve problems out of the blue.

It's easier to get more connected than less connected.

For example facilitate social discussions by adding shared spaces, as it relies on the estates department.
Comparatively, noise and interruptions are a lot harder to hchange as it relies on behaviour.

Solving hard problems requires focus time. You constantly fight against focus time in an open office.
Indeed there is alignment, as one of my favourite quotes from one of my favourite authors brings to bear:

“You must not fool yourself, and you are the easiest person to fool.” - Richard P. Feynman
Comparing CQL and the DynamoDB API
> This topic seems to come up time and time again on here. As someone young and new to the industry I have only ever experienced open plan offices, so I don't really know what the alternative is like.

I appreciate your open mind on the subject!

> However I'm inclined to say I don't think I would enjoy cubicles or private offices. I feel like you'd miss out on so much collaborative effort and serendipitous & spontaneous conversations with colleagues that solve problems out of the blue.

This is very unsettling to hear: That's the exact kind of hand-wavy argument that managers make.

Truthfully, I can't help but think of Stockholm syndrome when I read that sentence.

Here's the clencher: If you can't collaborate effectively in a private office or from home, there's a systemic mechanism failure. If your team or company isn't setup for effective communication, you will find yourself trapped in an open office plan and believing they're the only way to work.

However, the real problem is buried: Your team/company either cannot effectively collaborate outside of an artificial environment, or at least believes that to be the case. Assuming this is true: Why?

For background, I've worked remote for most of my career, but at the start, I had an open office job (and a two hour commute each way, consisting of an hour walk to the nearest bus stop and an hour bus ride to downtown Orlando, because the job didn't pay well enough to consider purchasing a car). In hindsight, it was a miserable experience, but at the time I just coped with it.

> I also think it's just plain isolating being on your own in a room all day.

Easy lifehack: Don't do that. Working remote doesn't require you do that. Working in a private office doesn't require you do that.

If you have a private office, you can also schedule 1:1 meetings in your office.

If you're working from home, take regular breaks to talk to your family/neighbors/etc. Pet your dogs. Dogs need love too!

> What's wrong with just putting some headphones on if you want to put your head down and do some deep, quiet work?

What's wrong with putting your jams on the speakers, rather than headphones, in your home office and standing up to dance when a good song comes on your playlist to get your blood flowing?

Different strokes.
> many have expressed concerns that AWS cash reserves and low prices could be major obstacles in securing clients.

Low prices? Seriously?
Detect where nuclear subs and hidden installations are? Making a first strike more possible, hence M.A.D. less reliable, hence a minute further on the doomsday clock?
It's also possible that higher co2 levels could be making you tired. I have been seeing more and more studies on high co2 levels in crowded offices causing measurable effects.
That was always a better idea. So what makes you think now is the time the world will move from its entrenched tradition and over to something more rational?
How do you do what has become basic best practices in a gui?

Everything under source control, defined as code.

* This gives you the ability to trace who did what

* Good code-commit hygiene with prs

* The ability to revert changes

* Ability to have an exact replication and promote across environments

Pragmatically test changes, unit test your flows

* Tie all the above up with a deployment pipeline

NiFi is being used in the critical parts of business data pipelines and all the devops rules for reliable development and deployment go out the window.

If NiFi is used by one person for a minor role the GUI is fine. But if it’s the core data pipeline which is a critical service used by multiple teams it’s not the smartest way to do things.
Yup, a room for the team is perfect. And then a gatekeeper (team lead) at the door everything has to go through.
We've briefly used parallel for an internal tool when the site went "multisite" (i.e. multiple parallel instances that sometimes need to all do the same thing, such as post-deployment tasks).

We currently have a patch to remove it, and instead use regular task backgrounding and the `wait` shell builtin.

The way output is buffered was not particularly conducive to what we wanted to achieve.
How to secure your Mobile Phone from Theft
https://www.joelonsoftware.com/2006/07/30/private-offices-re...
What about starting salaries, salaries at 2 years, 5 years etc.?
I’ll preface this by saying I definitely don’t know the answer to the question, but I think sensitive dependence on initial conditions and just straight randomness have been severely under discussed as possible contributors around the world.

I think there’s some natural hubris here where humans think they have the ability to control the outcome, without pausing to wonder how accurate that really is.
> I wouldn't necessarily expect there to be any clear trend to the set of all spectral lines

Me neither, but admittedly mainly because I've never even considered the question.

Some reflection gives me the expectation that there should be fewer high frequency lines due to conservation of energy, and very many low frequency lines.

Then I imagine experimental limitations mean it's very hard to see all the low frequency transitions, but honestly I have no idea how the cross sections of the transitions go with energy so I should stop speculating.
Didn't he do "Dead Skunk in the Middle of the Road"?
Kopi Kenangan nets $109m in Sequoia-led Series B round
I’m not saying they shouldn’t open.

But forcing your employees to come to work when it’s illegal to do so was what we were talking about.
do the employees get a choice if they dont feel safe working in the environment?
Headphones don’t make things quiet. You are just replacing noises.

Think of a library.

I have not even brought up the visual or olfactory distractions, either.
I'm an introvert and like to have a quiet place of my own. I work way better this way. I'm not alone in my office, though, we're 2 in the same room, and the door is always open, and everyone else in keeps his office's door open unless they need privacy. Best of both worlds.

I can't work with music/headphones. I tried, but it doesn't seem to work for me as I tend to focus on the music.
niwork, i can't reply directly so will reply here.

I am based in the East Midlands, I have been offered up to 50k from other companies in the East Midlands but have either rejected (commute) or withdrawn due to slow references.

I feel like salaries are creeping upwards here but only for in fashion stacks. I am part of a larger organisation here and have the influence I'd like in the team so chasing salary isn't a demand for me anymore, however it does get disheartening at times!
Totally agree.

With respect to the noise cancellation vertigo though - this varies with headphones ; apparently, some headphone response curve causes feeling of vertigo and/or pressure/vacuum on your eardrums. There was even research about that in the HN front page 4 months ago or so - will try to post it when I am not on phone.
Integrate Microsoft Teams with macOS notification center
Kafka consumer lag, monitoring microservices, Hasura
Programmers share what they’ve learned about Kafka consumer lag, monitoring microservices and Hasura.
That's not counter-evidence, that's just a big ol' ad hominem.
I see sound. Open offices have lots of it. I think visually. This doesn't mix well.
If you get enough internet points you will be able to break out of simulation. That's a common knowledge.

I am not entirely sure how come he is perceived as some genius Tony Starkesque world savior figure.

I hope his silliness will come around and bite him in the * one day.
This is great, thanks for sharing. Acknowledging that you're uncomfortable in those domains feels like the best first step to me. I struggle with this all the time. I've worked on a number of software projects myself and have fallen into the common trap of avoiding user feedback because it brings up domains and ideas that I'm not very confident in. I need to be more at home being wrong and admitting that what I've built could be better. Sometimes that demands learning an entirely new space or technology, which should be welcomed information but too often is ignored because it's uncomfortable.
The author's Poka Yoke measure to filter words from email reminds me of my own email Poka Yoke ritual. Before writing or replying to a lengthy or important email, I type some gibberish in the address field. This ensures that outlook/gmail prompts a confirmation if I accidentally hit send.
I see them parked sideways in London all the time.
True, but generally stories aren’t written about those people.
If there's between 100 and 1000 people in a train, getting rid of the driver saves between 1% and 0.1% of an hourly salary by ticket. The economic pressure to do so is very low, compared to the difficulty and legal liabilities.

Automating out a taxi/Über driver saves 50× to 1000× more money per traveler. And the infrastructure for a car ride cost way less than train + track + catenary lines + stations + antiquated ticketing system etc., so salaries represent a higher percentage of total costs.
I don’t get this argument though, I have shares and I don’t think the apocalypse would make me sell them, what good is all of that cash ?

The only people who should worry would be those who have all their savings in their share market, and I doubt the majority of share holders have all their money invested.

Not sure this checks out. I’d sell because I’d hope to buy once we rescued the bottom though.
It is an e-sport! Just very niche!

We livestream dogfighting competitions https://www.youtube.com/watch?v=gqUdcYvbzf8
The commute to my office is a few meters, and I really like that. It also has perks like private bathroom & fridge & coffee maker & oven, etc. I wouldn't want some company to have their open office so close to my bedroom.
I personally like them a lot, and I know plenty of people who range from also liking them to being indifferent about them. It’s just one of the topics HN shows a very strong groupthink about. Wrong opinions on open plan offices are downvoted very aggressively, and complaints about them are comically exaggerated.

I think most people who complain about them here haven’t experienced the alternatives. The most likely alternative is cubicle farms, which are soul crushingly terrible, or a number of different solutions which all require use of much more floor space. The economics of a more-floor-space approach would reasonably make everybody about $20,000-$50,000/year more expensive to employ, and well you can guess where that money would come from...
100 km^2 ≠ (100 km)^2. For a 100km by 100km image, 1 gigapixel gives you pixels 3.16m by 3.16m, 10m^2 each. Probably still enough to track boats though.
Handtools probably go missing more often than socks or pencils. It would be great to have a cheap NFC based system for even smallish workshops.
And if people don't value your oranges that much, you close shop. It is not going to make the people suddenly value your oranges more.
Does that really work? What sort of experience levels are you talking about?
In our elementary school cafeteria, we had a large traffic light that was sound activated.

Reasonable noise levels were green, but if we got too loud it would turn yellow to warn us to quiet down, but if it turned red, it would make a loud buzzing alert, and we were not allowed to speak during the red light.

If you did speak during a red light, you were written a ‘ticket’, and would not be going to recess that afternoon.

It would turn back to green after a specified time.
Back to Back Star Tragedies: Rishi Kapoor Dies in Mumbai
This is really interesting and fun!

One bit of UX feedback - I played about with children, cross breeding and editing genes and never figured out a mental model for what interactions caused a derivative image to be previewed vs being used to update the current seed image.

Clicking on images often saved them, though I'm not sure what that means for me, the user. Do I need to save a child image in order to derive from it? Even if it's just an intermediate result I want to play with? When I breed images, I see the image on the left is updated, but it doesn't seem to update the seed image being used in the 'Children' tab, or the genes available for editting? I ended up saving and then re-opening images as a relatively safe workflow, but it would have been a lot clearer if there was more UI feedback showing me what's a preview and what's an input at any point.

All those questions were rhetorical btw, just talking through my user experience :)
I agree MD5 is not broken for digest authentication. MD5 is only weak for chosen-plaintext or brute force attacks. With a correctly generated nonce, it is more than secure enough.
Does that not just create silos though. So many things require cross-team working. If each team has its own private space then information bottlenecks will occur
He makes a very good point. You shouldn't down vote an opinion only because you disagree with it.
Personally, my productivity drops when I get external stimuli. Movement? Lots of color? I won't get into a deep concentration and flow.

Fortunately, I work from home most of the time. I've build the antithesis to an open plan office: I've built an even smaller office in my office where I've essentially put up black curtains all round my desk. Working with a VR headset might be an option as well, but from what I hear they're not quite production ready yet for long term office/programming work.
Noise-cancelling headphones aren't perfect, and if there's a lot of environmental noise, you'll need to do more than put on quiet music.

I've been in places where I wore in-ear phones (they have some passive noise-cancelling effect due to the silicone seal), _and_ with noise-cancelling headphones around those, in attempt to keep the noise out and be able to hear something.

Your ears have a sort of physical gain control built in, so if you listen to quiet music the environmental sound (that still gets through the noise-cancelling headphones) will sound louder than if you listen to louder music.

I don't recommend actually loud music, as that causes serious damage in the long run. But some modest volume will add some additional masking on top of all the other things done to keep out the environmental sound.
That makes sense, but also seems not too difficult to prove.
My local cheese shop is certainly cheaper, but yeah, I guess these are luxury cheeses.

My local choose shop is unusually cheap, though. For quality cheese, I don't think these prices are that unusual. Though if that EUR 10 for plain Gouda includes that 40% discount, that would mean it's normally EUR 18 for .4 kg. That is pretty steep.
Sounds like that discussion was needed, to me..
I fully admit that it is a back of a napkin estimate. I've yet to see a better attempt at an estimation, or any attempt really. If you have a better way I'm happy to hear it. I have a small dataset that breaks down COVID and nonCOVID deaths for the same time period, and gives ages for each death.
Hotdesking often means team members can't sit near each other. I find it hilarious that you have people who spend their entire day on zoom calls with collegues in different parts of the buildings, who also claim they can't possibly work from home.
Coronavirus Will Affect the Connectivity and Tech Industry in 2020
serendipitous & spontaneous conversations with colleagues that solve problems out of the blue

In my experience those "solutions" are usually wrong in the sense that they only solve the immediate problem without giving due consideration to the wider project. If you leave out a lot of people involved most problems are easy to solve, because you're ignoring all the nuance and the things that make it hard. The solutions are also very rarely documented, so after the discussion people walk away with different ideas of what was discussed and different solutions in mind. In short, they might feel good, but they're often quite bad for the project.
Does it need to be completely quiet? I find I work best with low-level relaxing ambient background noise. Find it much easier to work in e.g. a coffee shop than a library
https://archive.today/bbENB

https://archive.is/bbENB

https://archive.fo/bbENB

https://archive.li/bbENB

https://archive.vn/bbENB

https://archive.md/bbENB

https://archive.ph/bbENB

https://en.wikipedia.org/wiki/Archive.today

https://community.cloudflare.com/t/archive-is-error-1001/182...
Yes, those lectures are good enough for intuitions only. For practice one has to read books. I just hope the viewer knows that. Which I have seen is absent among some people.
What would you recommend as a good resource for learning about Linear Algebra in 2020?

I am aware of his course on OCW, but wondering is there something more interactive and/or newer than those lectures that has similar quality.
The Apple requirement to have a keyboard + mouse plugged in even if you're doing remote desktop or using a remote display is really frustrating. It seems like a few releases ago you could fix it with an app, but now you're stuck. Even worse on the laptops where it seems like a monitor is required too...

I wonder if this app manages to get around that somewhat through trickery?
I last months I found out, that initial stress started with an early search of parking spot on the street. Only managers and other very important persons had their places in a garage.

Then this open office with bunch of fresh graduates solving problems and organizing meetings at their tables. No words left... and hiding in meeting rooms, labs and kitchen isn’t solution either. After pandemic is over, I’ll start at 100% remote startup. I can sacrifice 10% of my current pay for better working environment. It’s definitely worth it. Maybe even move to cheaper location one driving hour away, so I can still visit occasionally office.
> Sidecar only allows for the iPad to be the second or auxiliary display - making it effectively useless for this purpose.

I had noticed that, and that's why I was wondering if an HDMI dummy (a simple device that pretends to be an HDMI display) could be the primary display, using sidecar so an iPad would be the secondary display, mirroring the primary.
Most people can share their own experience; some people feel they are equally effective in an open space (compared to private / pair / small team office) but most feel they are not.

I have never heard a worker who requires concentration say they are MORE effective in an open space - only equal or less.

(I have heard sales people say that, and they mostly extol the virtues of being able to ask anyone around any question mid-sale-call and get an immediate answer; I suspect their co workers might have a different perspective)

I highly recommend reading “Peopleware”, which —- among many other subjects — has anecdotes and some real data about open spaces vs private vs small team offices.
Came here to say that. It is a wonderful book, and I think it provides a more "modern" approach than the one presented in the videos.