skysight-inc/HackerNews huggingface dataset:
Yeah I would call this the engineering approach (matrices) vs the mathematical approach (algebra).

I took like 3-4 courses in the US involving the engineering approach, starting in high school and continuing through the college as a CS major. That was all that was required.

But I also like algebra, so I happened to take a 400-level course that only math majors take my senior of college. And then I got the group theory / vector space view on it. I don't think 95% of CS majors got that.

I don't think one is better than the other, but they should have tried to balance it out more. It helps to understand both viewpoints. (If you haven't seen the latter, then picture a 300-page text on linear algebra that doesn't mention matrices at all. It's all linear transformations and spaces.)

What country were you taught in? Wild guess: France?
> I can't imagine what they would use for a reference

All the orbits are well known (to all interested parties at least) so I'd assume a downwards pointing laser guide wouldn't be much of an issue.
> They are getting into the car sales and recycle business as well. Just to give you an impression.

They were also supposed to get into housing.
Last time I had a Zoom meeting these were the steps to a browser join link:

1. Go to zoom.com
2. Click "Join a meeting"
3. Enter meeting id and click Join
4. Ignore the automatic app download
5. Go back
6. Click "Join a meeting" again
7. Enter meeting id and click Join again
8. Ignore the app download again
9. Click at "If nothing prompts, click here"
10. Click "Join from your browser"
11. Agree to terms of service
12. Enter password and name, click Join

Needless to say, I prefer Jitsi or even Google Meet.
Remote Hiring is becoming the New Norm in 2020
Fractional Cascading – Speeding Up Binary Searches
WPF has databinding available today, it's not gone away.

https://docs.microsoft.com/en-us/dotnet/desktop-wpf/data/dat...
70 people is not much for, except for a vertical solution.
If they can sell/co-host big warehouse management like Manhattan at a fraction of AWS, they could succeed.
Also:

- Interactive rebase - reorder, squash, delete etc commits. Ensures your history is 'implement X' rather than 'implement X' 'fix typo' 'update old comment'.

Command line UI (git rebase -i) is ... dated. But Fork, SourceTree, Tower and a few others have better UIs.

- If someone added a secret in the past, which should have been in a .env file: 'BFG repo cleaner'.
It's the reverse in my part of Europe (Poland) - you can buy non-UHT milk, but I don't know anyone that does.
> That is complete nonsense. Bitcoin solves no actual problems, and instead tries to revert back to a previous monetary system that was abandoned because it was failing. The consensus among economists is that a deflationary currency is a terrible idea. This is the equivalent of medicine going back to routinely performing lobotomies: it doesn't solve anything, but causes a huge amount of harm.

There are economists I respect that hold cryptocurrencies in good regard. Exhibit A: Jeffrey Tucker.

Why Bitcoin is not performing as it should in the current economic crisis: https://youtu.be/RD08_5UO1k4?t=1211

Explains blockchain from an economic perspective: https://www.youtube.com/watch?v=PUqe2sLT9X8

Bitcoin scaling and Bitcoin Cash: https://youtu.be/fsLuC0Bl1-o?t=91
> Can i just vacuum everything at night on a cronjob?

It might not be technically pure, but you absolutely can do this, and if your load is really asymmetrical and much quieter at night, then it may well make sense. It may also be unnecessary, as there is an auto-vacuum feature.
Interestingly, the coronavirus response is close to war-time level focus. The same focus should be directed towards climate gas emissions and climate change.
Transform Google Voice into Your Own Private Bouncer or Receptionist
What a great bullshit-article (pun intended)!

However it completely forgets the willingness aspect.
I think a lot of smart people are brilliant bullshitters, however they have morale and pride which make them avoid this.
I'll bet this article will be shared among CEO friends, "See, we are smart!"
Street View camera rigs do much more than just take photos
When can microkernels finally become a reality?

The previous complaints was that it was always slower than a monolithic kernel. But with all the multicores, memory, and SSD storage available today, then at some point, the extra processing becomes irrelevant.
Ask HN: What web browsers(desktop and mobile) do you target for your project?
What is the minimum version you target for each OS and browser vendor? How did you decide on this?
I would not describe his approach as “the US approach” but it is a pretty standard approach to introducing linear algebra to engineers, which is the theme of the course.

I was also taught linear algebra this way, by an applied mathematician with a background in chemical engineering:

- start by solving Ax=b with row reduction

- develop theorems about linear independence and spanning sets of vectors based on these exercises

- introduce the determinant from the perspective of linear systems (rather than eg geometry or group theory)

- eigenvectors and eigenvalues

Later I switched from physics to math and TAed a more “algebraic” approach involving groups/rings/fields. But the matrix-first approach was more helpful for both my physics coursework and later courses in numerical linear algebra.
I can't say whether or not it is the standard approach but I do know that it is very common in many countries to teach a linear algebra course that is heavy on matrix operations, that you can come away believing that linear algebra is somehow _about_ matrices and their operations. I know many in my university class seemed to believe that.

A book I enjoyed is Axler's Linear Algebra Done Right[0], in which, if I remember correctly, doesn't contain a single matrix.

[0]https://zhangyk8.github.io/teaching/file_spring2018/linear_a...
The yardstick is whether you can get them to repeat your BS to others before you dissuade them of the idea.

Sometimes the BS is just too compelling, and they refuse to drop it even after your denouement.
You'll need to give some more detail.

When I worked with a European cloud host, customers in Germany demanded German data centres and EU ownership. I've seen enough people/companies ask for that to convince me there's at least some demand.

What's your reason for saying it's not a good differentiator?
>And then there are cookbooks where all of the anecdotes are in the front of the book and the recipes are in the back. These are the ones I like because I can easily find what I'm looking for, but can still read the background about a recipe, if I choose.

I inherited a series of Time Life cookbooks from my grandmother. They must have been printed in the 70s. Each of them essentially comes in two parts. A full size book with lots of pictures, introductions and visual guides and a small ring-bound booklet that's essentially all recipes.
What I also find interesting about them is that many recipes are rather laborious and from scratch since they were written before having all that many kitchen appliances and pre-made ingredients.
It seems to describe how I generally argue. I guess as long as I'm called intelligent, I can agree to be called a bullshitter too?

It's true that being able to "navigate" vague ideas of politics, economics, philosophy, communication, and understand how others perceive those ideas, enables one intelligent person to play with those ideas to make some bullshit.

The problem is that when ideas are not precisely defined, or when those ideas are controversial and/or misused because they're important societal values, it gives more and more opportunity for someone to make bullshit.

I mean you can't bullshit about quantum physics or advanced math. But it's easier to do it for law or social sciences.
I just tried that out for a couple sentences when I realised that this is /precisely/ what I would do for English Literature classes, years ago.
Perhaps it is no coincidence that that subject that seemingly trains you to 'bullshit' is then also related to intelligence.
Minor quibble but I would suggest rural America as a far more accurate descriptor than mid-America.
Aperture synthesis, aka interferometry, has been applied to optical systems for far more than 15 years. The Narrabri Stellar Intensity Interferometer[1] saw first light in 1963, for example. However, your resolving power is still fundamentally limited by the distance between your telescopes. The diffraction limit may be more of a fuzzy limit than a hard cut off, but it is fundamental physics. Optical interferometry is hard, and you don't get a image in the way that most people would think of it. To build up a detailed image with aperture synthesis requires measurements over a very large number of baselines.

[1] https://en.wikipedia.org/wiki/Narrabri_Stellar_Intensity_Int...
>The taskbar fills too quickly (you can't read the window text) and when it groups by Application it's not really any different than macOS' dock

I just use the default setting where it doesn't show the text ever (only grouped icons), but I don't need it, because when you hover over a multi-window icon, it very quickly shows the previews (with just the right small amount of hover delay). They are live previews, so if some animation is happening in a window, you'll see it.

https://i.imgur.com/85Ct0Fp.png

As far as I know, macOS doesn't do anything like that, without 3rd party apps at least.

You can also middle-click on the app icon to launch a new instance of the application - e.g. a new terminal window in this case - no need to hunt for a "new window" menu item. This is analogous to how browser links and other UI elements (bookmarks, back button, etc.) behave.

You can middle-click on one of the previews to close it - so you don't have to aim for the small X in the corner. Any workflow is much faster when you can get away with imprecise movements.

Hovering over the preview hides all other windows for the duration of the hover (dim transparent rectangles of non-full-screen windows remain) which is useful if you just need a quick glance without switching to the app - you can do that with just mouse moves, no clicks needed - which means you can always go back to your original view by moving the cursor away.

There is a project that tries to recreate this in Linux (https://github.com/M7S/dockbarx), but it has a number of bugs and lacks polish in general.

I also miss alt+right click to resize and alt+left click to move a window from Linux - having to be precise is annoying and slows you down, but overall I still like the Windows UI better.
there is also "ape calessino", yoi can carry two passengers
http://www.piaggiocommercialvehicles.com/it_IT/modelli/ape/a...
Sidecar only allows for the iPad to be the second or auxiliary display - making it effectively useless for this purpose.

I'm actually gonna implement this setup (I'm looking out for used Mac minis on my local equivalent to eBay this week), for when my iPad Pro and Magic Keyboard get delivered over the next couple weeks.

This means I'll be able to use the setup for sketching and illustration, video-editing, note-taking and other typical iPad tasks, but then also be able to hook it up to the headless Mac mini (which I plan to stash in a cupboard) and use Xcode and other MacOS-only applications.

No idea how well this is gonna work, but I'm certainly looking forward to illustrating again - something I've barely done for the last few years, and which used to be a large and very satisfying part of my work (in the days before narrow specialization was such a thing).
In Germany at the senior (10+ years) scale €70k/year is not unusual & if you work for the better paid companies (like google) you can expect significantly more.
My understanding is he didn't realise she was 15 and the marriage ended when he found out.
> It rubs me the wrong way when a $70/mo AWS instance is more than twice as slow than a $10/mo 'traditional' VPS instance.

Elastic compute of the type provided by EC2 and similar services (Google Compute Engine, etc.) is a fundamentally different service than simple VPS. AWS has something that is, or is very close to, a simple VPS in LightSail, and the pricing is pretty competitive with other VPS providers.

LightSail doesn't have a $70/mo instance, the closest is $80/mo for a 16GB RAM, 4-core, 320GB SSD instance with 6TB of transfer quota. The least expensive is $3.50/mo, and $10/mo gets you 2GB RAM, 1 core, 60GB SSD, and 3TB transfer.
> the initial 4-5% case fatality rate and 20% hospitalization rate numbers

Those are the current stats I believe. The IFR is of course lower, but probably not wildly lower. As of yesterday the UK's chief medical officer was estimating it at 1% or a bit less.
The novel "How to Stop Time" by Matt Haig is a recent addition to this genre, and is built on this very premise. It is a fun read. (And, unlike most "eternal life!" type books, has no vampires)
German Bundeswehr Will Use Matrix Instant Messenger
Does the majority of software lie elsewhere?

Type "developer" into a job search.

The majority of all software in the world actually does lie in CRUD web apps today.
From the perspective of a customer who cares about these things, though, there is a difference between a non-EU company bound by EU law and an EU head quartered company.

I'm not saying it's enough to build an AWS-sized business or that Lidl is in a position to do it but there are cloud hosts who sell themselves specifically on that, such Exoscale.com
Careers in Blogging
Didn't Lidl just burn 1.x Billion on a new failed SAP backoffice tool, and now they're getting into cloud hosting? OH MY GOD.
Java for Amiga
You’re talking about ecommerce, not automation.

Automation is unrelated to where products are sold.

Automation might just mean one fewer cashier at a regular store.
Hey Guillaume, thanks for your wishes! Let's catch up!
I don't understand your first argument. My feeling is that you got side-tracked by the use of the word "engineer" because it shouldn't be used in its literal meaning, but was it the intent of GP?

There are scientific papers, BTW, which engineer solutions by evolutionary algorithms. Is that evolution or engineering? Clearly there's an engineering setup, made of all the constraints you speak about for the evolution process to take place, and that evolution process is also defined artificially, yet just like the real stuff, it follows a set of rules, so where's the divide? Why nature couldn't be engineering life with evolution, but humans could?

Your last point OTOH is quite relevant.
>> Almost all decent datacentres and compute providers have these features

Multiple tier1 networking routes? I seriously doubt that. Those vendors won't deal with small players. AWS used to have 160Gbps in NA 10 years ago. EC2 has DDOS protection, for one simple reason, if somebody DDOSing it it will impact many customers. And you can also use Shield. The point here is that you have options. What sort of DDOS protection Linode or DO have? How much bandwidth did they get? How many tier1 routes? There are the sort of questions you need to ask for a fair comparison, which absolutely not happing on HN. Many people think that building a data center is like creating a hello world application. I have seen this repeadetly, several times.
Reminds me of Ruby.
Let us not forget Tim Follin's masterpieces: Agent X and Agent X II. Hearing this come out of a Spectrum in the mid-80s was astonishing. I recorded them onto tape for Walkman listening.

https://www.youtube.com/watch?v=JOZ8rbmlWrk

https://www.youtube.com/watch?v=pDfsAemVaDA
This is pretty accurate and refreshing to see. Contray to everyone elses salaries, UK (excl. London) seems very low.

I am just below the £45k mark with 3 years at my current company and 12ish years overall. So should be bang on your numbers when it comes to 5-10 years at this company.
> I mean you can't bullshit about quantum physics or advanced math.

Depends on your audience. In general, on any given subject, you can successfully bullshit people who are less familiar with it than you are. In terms of social wins, I think that's usually what matters - bullshitting people on the spot. They won't go and fact-check it later anyways, but will be left with an impression that you're smart and knowledgeable.
Isn't bullshitting about STEM topics basically technobabble?
These are services that have nothing to do with Graviton. You can use, Kafka, k8s, Datadog just to name the obvious alternatives.
Hetzner Cloud exists and some efforts to automate Kubernetes deployments exist as well. It is of course not as polished as similar k8s AWS solutions, but as you said yourself it is much cheaper.
I still dont understand how AMD could have a chip announced 18 months ago, shipped nearly 12 months ago, Announced by AWS 6 months ago and is still not available.
I don't think we would. Disclosure of non-readiness is a big no-no.
Outgoing Port Tester
Gilbert Strang taught me how to sanely multiply matrices. His Introduction to Linear Algebra is very approachable. It's wildly different experience compared to linear algebra courses I had on university, it actually makes sense and is fun!
It was a bit surprising to me to see that in Spain you only use the formal plural with much older people, if then, whereas in Greece you'd use it with any stranger that wasn't about your age AND you had some rapport with.

I guess I expected cultures to be similar in who gets the polite treatment, but they're really not.
Here is Alameda County's public health order:

http://www.acphd.org/media/572718/health-officer-order-20-10...

To quote it: "Pursuant to Government Code sections 26602 and 41601 and Health and Safety Code section 101029, the Health Officer requests that the Sheriff and all chiefs of police in the County ensure compliance with and enforce this Order. The violation of any provision of this Order constitutes an imminent threat and menace to public health, constitutes a public nuisance, and is punishable by fine, imprisonment, or both."
Estonian unmanned ground vehicle successfully towed a 32-ton fighting vehicle
Millions of Computers Open to Thunderbolt Port Vulnerabilities
No, we don’t.
I managed to get through skin in the game, but I didn't enjoy the writing style at all. It's much more abrasive/emotional, similar to his tweets.
I'm sure I'm not the only one who'd be interested in reading more of this. Is there a reason your conversation can't proceed on HackerNews?
Because being forced to don headphones I'd rather not wear is lame.

Because being people have meetings in the space right behind my desk.

Because I feel like cattle, which could explain why I have this beef XD
Because the person doesn't know what they are talking about. Germans will never prefer Amazon over known local stores - it's already enough to be an American company these days. People know what that means and they don't want it.

Wal-Mart completely crashed and burned in Germany and it already started at the weird greeting person at the entry. When Germans see this, the business is basically already bust. Keep the fake customer relations smiles, Germans find that creepy and annoying. I would bet it would literally be better to have some person yelling at people to move faster.

And then comes workers rights. Germany won't have any of the degrading bullshit like Wal-Mart or others in the US (good luck, Tesla in Berlin). Running a business profitable in Germany is way different from doing the same in the United States. That's both for legal/bureaucratic reasons and also customer expectations.

People in Germany also bring their own bags and actively don't want some slave to bag their items. It's a real skill not to piss off other Germans in a supermarket when you scramble to bag your stuff and take longer than a few seconds. In my experience, Aldi cashiers (well-paid btw) are better than any robot you could put there. Their speed is insane (remember to keep up with the bagging or you will get evil stares or comments for being a moron).

The market is completely different.
It's still not clear they will close shop, see their update: https://support.purse.io/en/articles/3851246-purse-is-saying...

In any case, there is a number of ways to spend cryptocurrencies without having to go through exchanging them into fiat, which was the point I wanted to make to OP.
marijuana is an important, life-saving medicine for a lot of people. Being able to visit a hardware store is important because some home repairs simply cannot wait. A car factory on the other hand has literally no reason to be open right now, the car industry is literally crashing right now because there is so little demand for cars.
> 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 happens for sure

In my experience the ratio of beneficial to detrimental serendipitous and/or spontaneous conversations that result in any benefit is extremely low, so low in fact as to not being worth it. The problem is that people tend to remember the useful one conversation and forget the other 100.

At my current job, never have I ever been involved in anything that has resulted in a solved problem from a casual conversation, yet I was regularly interrupted by other people before I started working from home.
https://en.m.wikipedia.org/wiki/Du-reformen

Similar in Sweden 50 years ago.
I don't feel I have some kind of mental safety in open office. Bell labs are best kinds of office where you have offices with hub common area for your team where you can go out and discuss stuff.
I think the term "open plan office" is too generic. The example @jlengrand provides is the form of torture that drives people who need to think and concentrate to distraction.

The most productive environments I have known are a modest sized room used as an open plan office where every person there was working on the same project. The managers had their own private offices on another floor. Under those sort of conditions collaboration and intelligent conversations can arise. So long as you manage to exclude the blabbermouths who are constantly asking stupid questions or making unnecessary commentary.

I think I have achieved the best compromise, work from home, turn off emails and all forms of social apps. Then once or twice a week go to the office specifically to have meetings, etc. That way I get the peace and quite to immerse into deep work (Cal Newport) and get the benefits of collaboration and brainstorming. I only check my emails after I have finished the day's deep work. My promise is that I answer all emails addressed to me within 36 hours. Nothing faster. If it's that important people have to text message which I will typically check 2-3 times a day max.

BTW I charge for specified units of work completed according to schedules and budgets that I agree to. Charging on the basis of hours worked just doesn't cut it for me.
What sort of vehicles will those deliverers and caregivers use?
anecdotes is a part of them, I used empirical in the sense that i noticed (and somewhat envied) they had the ability to get out of situations while I could not. The reason I said nothing to do with IQ or intelligence is probably an underlying bias where I have seen some smarter folks (compared to me) do it as well as some not as smart folks do it too. Not using anecdotes because it has happened way too often, and this is also the experience of a few individuals in my friends group
Afaik, biggest issue have people who did not gained degree. When they drop out, either because it is too hard or because they have personal problems or because they just don't feel like studying, they end up with debt and no degree.

The actual issue of "picked obviously bad degree with no jobs" is rather small. Most students go for practically sounding degree.
It's mostly regulator's failure.
I have been paid $3,232 to sit at home and do nothing the last month. Not including the stimulus check I haven't cashed yet. I would have made about $3,000 in the same time. That is completely insane to me. I do not see how that isn't extremely generous. I don't see how it's sustainable either.