skysight-inc/HackerNews huggingface dataset:
> https://www.amazon.com/Introduction-Materials-Management-Ste...

Thank you I'll check that out in addition to the Simchi book

> If you're highly technical and would like to learn how to abstract and solve some of the hardest problems in supply chain management, I would actually look into the field of Operations Research. It is basically mathematical modeling and optimization of real world operational and logistics problems.

I recently took the SIAM Math Modeling Works Challenge [1] and actually found that quite enjoyable, so Operations Research sounds great.

[1] = https://m3challenge.siam.org/

> In order for the pattern to appear, there have to be independent actors with cascading delays in the aquisition of information about the future, and a mismatch in the ability to stop production (decelerate) and start production (accelerate).

That makes sense, that's a cool connection between this bullwhip effect and the traffic wave.

> The cars closest to it stop extremely fast but then accelerate slower than they decelerated.

Aaah, so if I understand correctly, since it takes more time for them to get back up to their previous speed, each group of cars receives information to stay stopped for longer than they do to start moving again, and thus the traveling wave effect grows between each group of cars. I'm assuming however, this is the case for each group of cars acting as one unit, and there is no all seeing central coordination of all the car groups on the highway.

> The supply chain parallel problem emphasizes the importance of inventory. Running super lean on inventory can mean lower costs and higher throughput, but it exacerbates the bullwhip effect substantially.

I guess if you don't have that buffer for absorbing shock the bullwhip effect is stronger? I haven't read about what the lean production model is, so I'm probably just talking out my ass here, I'll keep this in mind when I'm reading that Womack 'Lean Thinking' book then.
Thanks for you insights. Number 5 I'm actually really sad about. I would love the web to work this way today.
Thanks for the SPAM. Let's talk about whatever you wish to say.
I have a YouTube channel that I post about my 5 year old permaculture garden on .75 acre in Zone 6b Eastern Connecticut. I also have a mastodon were I post images, updates, and things what work or don't work for my context.

https://www.youtube.com/channel/UC1eySW_9TiI5wnvTnIIw2Nw

https://social.unturf.com/@russell
>The repeated emphasis is on health and saving lives.

And they just killed thousands of people, potentially tens of thousands. They know, as we have known for decades, that even simple, home made, cloth masks provide a huge reduction in the spread of respiratory diseases.

>I think the same people who were inclined to distrust health organizations probably continue to do so, and the folks who were inclined to trust health organizations probably continue to do so as well.

Anecdotally, that does not seem to be the case. I don't know anyone who trusts the CDC or WHO now, and a bunch of people now think the WHO is a Chinese organization trying to deliberately kill Americans, and the CDC has been infiltrated and subverted by them. That seems like a major barrier to effectively preventing future epidemics.
Along a similar vein, Springer just make "Linear Algebra Done Right" freely available as well — https://link.springer.com/book/10.1007/978-3-319-11080-6
Ask HN: How to get better Google search ranking for a set of keywords
I've created a simple site (https://funnyzoombackgrounds.com/) as an experiment. I want to see what it takes to get higher on google search for "Funny zoom backgrounds". The domain name was chosen deliberately to be the same as the keywords. The site does what the name suggests, no ads, no scams.
what I did so far:
- added the site to search.google.com
- tried a simple product hunt post

Any tips on what else should I try?
Thanks
A Four-Part Strategy for Release Planning
Is there a way to use ECB "correctly"?

Is there any non-repeating data apart from noise (if even)?
It's actually getting worse. The 2020 macbook air has soldered secondary storage. In a day when NVME drives are as tiny as ever. So now if you want to upgrade from 256 GB to 1 TB you need to buy an entirely new board.
Do you think SwiftUI was a mistake for that reason then, since it's for native applications?
And the benefits of others taking action: you'd already get your imported cases conveniently stopped without lifting a finger yourself when everybody else does the dirty job of closing borders. Not a big difference once there is domestic spread, but every bit helps. (Sweden did implement the EU travel restrictions, but apparently that does not stop the "decisive inaction" narrative)
You are responding to a claim by the author of the article, not something claimed by Sweden.
My teacher wife and a bunch of the folks she knows (non-nerds) cover their webcams with stickers or whatever. They’d all love (separate!) kill-switches for their cameras and mics. Plus everyone working in tech I know. So that’s... everyone I know who’s aware their laptops have cameras and microphones.
Control group analysis has been very problematic in this epidemic

A high % of people are asymptomatic or just has mild/moderate symptoms. People might not have known what hit them.

Hence people might be tested (now) if they fit the symptoms. Might be tested, and might or might not be classified as Covid-19 without the tests

And that's in countries with a good health system. Maybe some country with hundreds of official cases is already in the millions. Who knows?!
Humans have developed protections against some rogue RNA, since out of control fork bombs randomly happening isn't a thing that makes you successful at reproduction.

The Virus reproduces using a fork bomb but for us it's deadly.
Chinese commercial rocket sells for $5.6M in April Fool’s auction
Yeah, I'm not blind to the fact that the form factor was dictated by the spare parts and manufacturing process investment for older phones; I'm really not denying that at all.

I'm just indicating that some people are buying the SE not because it's cheap, but because it's the best (or only) option for a 4" high end phone, and while I can't quantify the proportions of price-sensitive vs. size-sensitive; my anecdotal evidence that it's more size-sensitive than price-sensitive. At least in the circles I travel in.

> But, you might be interested in the rumours of a small iphone 12 this year. It sounds like Apple has been listening to small phone advocates, and appears to actually be making them.

There's always something on the horizon which never seems to materialise, the iPhone 11 [Pro] was supposed to be small, then the SE2 rumours which are now bunked. At some point soon I'll just go all-in on an iPad Pro or some other tablet and interface with it very sparingly, via headphones and the watch.
Good question, but yes, he did. Their main issue with spreadsheets was the lack of roles and permissions.
The tool makes it easy to allocate fridge space to users, which in turn makes it easier for the users to keep track of things. Also, users can't touch other users' stuff.

Also, the data per fridge cell itself is more complex than what fits in a spreadsheet row.

All this adds up to a much more user-friendly (and manager-friendly) experience, which leads to higher uptake among users and ultimately cleaner data.
For asian countries, I think the answer is wearing masks.
Since we’re integrated between OS and hardware on Apple platforms, they could implement a “Turn on your microphone” dialog. I think this support excuse is too commonly used, when there is obvious value in the result. He’s not a minority, even my grandparents shared the photo of Mark Zuckerberg saying “If this guy hides his camera, so should you”...
I live here and this is the first time I've heard of it framed in terms of liberty.

When schools started closing across Europe, government officials started talking keeping the schools open so health care workers wouldn't have to take off work to care for their kids. This was also the rationale mentioned when the chief epidemiologist, Anders Tagnell, was interviewed by the BBC the other day.

Another point he made was about compliance: if you keep everything shut down and on lockdown for too long, people will eventually just not comply anymore, so you want to save it until it's necessary.

As cool as it would be to believe that we're just not doing it for liberty, it's pretty clear we're not doing it for practical reasons, and that we're not doing it yet.

As things escalate, it's pretty clear the same lockdown measures other countries have implemented will also come to Sweden.
For scaling I assume some cloud solution or very distributed solution is better than PostgreSQL. For example Azure SQL Database Hyperscale or CockroachDb.

https://redmondmag.com/articles/2019/07/03/microsoft-buildin...
Question: How is the production of a cell wall encoded (or not) in DNA in a cell's replication process?
It’s Apple. If you want switches on your computers, use ThinkPad or Dell.
It also means you need a per-user database connection which isn't feasible in many applications as the recommended number of concurrent connections is typically quite low.
Tachyum starts from scratch to etch a universal processor
Trump seems to be ok with it in so far as he’s telling people to accept it as a good outcome.
Transport for London debt put on review for Coronavirus downgrade
What are you saying exactly? He's praising the Swedish strategy but you take the only counter-point out of context and make it sound like he's condemning it.
BeyondCorp: A New Approach to Enterprise Security
You can just use the find command for tracking writes, for example:

find / -type f -printf '%TY-%Tm-%Td %TT %p\n' | sort

(you probably want to add -mount in there too and use find per each mount point separately)
I've deployed, administered, and developed with PostgreSQL in a regulated, audited environment with external and internal compliance requirements (US healthcare; database contains protected health information). None of the security model issues you mention is anything like a realistic concern in that environment.

And I'd love to see your sources for all your "exploits".
It's not about describing the mind, it's about modelling the mind. E.g. if we have some reasonable axioms: thinking about things can cause suffering, how reaction to something depends on how we value it, and our values can be change, then from those axioms it follows that we can change how much we suffer from thinking about things by changing our values.
The efficiency argument is appropriate for things like real-time games, where response time should be as fast as possible.

For the other 99% of apps, a clean, clear mental model for the developer is pretty nice to have, and this looks like a very nice implementation. I'd use it!
It's not even just retrofitting and modernization. Even just repair of larger CNC machines is unbelievably expensive and very cool.

Are you removing old motor drives from machines and installing new drives to extend life? There is certainly a larger market. I'm in Norfolk, VA and there are machine shops all over the place. I'd love to hear more from you.
Could be nice to see the board.toString() with a Unicode representation of the board.

Edit: the comment text does not allow Unicode characters.
I would prefer that they track only with permission of the tracked, but I realize that we are little better than tagged animals to them.
Covid-19 and flu do have similar symptoms: https://i.insider.com/5e6a58fee4f9fe5dad7d0932 , so if you have one and are symptomatic, it wouldn't be hard to confuse it with the other.

Where they're wrong is:

1) The death rate. Seasonal flu is around 0.1%, while covid-19 is likely between 0.5% to 1% (many figures in the news are inflated by selection bias due to testing being a limited resource).

2) Contagion. We have vaccines for seasonal flu. Covid-19 spreads much faster and stays alive in the air and on surfaces for much longer.

3) Hospital capacity due to the fast spread.
>The book “The Market Gardener” by Jean-Martin Fortier is a good resource about those topics.

It is? He doesn't do no-till, doesn't do regenerative ag or permaculture. He just grows lettuce conventionally and sells it at high prices to a couple of hipster restaurants in Montreal. I never read the book, but it seems weird he would advocate stuff he won't actually do himself.
But it only works if everyone has Apple devices, so it absolutely does not "just work" if even one family member doesn't have it.

Most video chat apps are straightforward once set up on the phone.
I have one and it doesn't seem like it. The iPad's display is actually pretty bad compared to the iPhone, it just happens to be capable of a higher refresh rate (but still not in Safari, sadly).
Yeah, I'm watching closely. There is no actual evidence supporting strict lockdowns, despite everyone talking about them as if they're proven to be the only solution. So far, Sweden is showing that perhaps a balanced approach that doesn't destroy your economy can work equally well. Hopefully soon there will be some evidence one way or another.
So, if you don't mind dropping some cash...

- Delphi is great if you have a Windows machine and is still quite popular in Europe if you _really_ want to make a career out of it.

- Xojo is extremely well priced. I cannot say much about it but a friend that is a former Lazarus programmer swears by it.

- LispWorks CAPI is hands-down the best I've tried, but requires individual licenses for each platform and if you want 64bit you'll be breaking the bank.

> Pascal is showing its age and feels a bit wonky in comparison to C like languages.

What makes Pascal show its age? Proper records? Generics? :)
I find this paper very undesirable, outrageous and borderline conspirational.

> "There are many experts in epidemiology and virology who are highly critical of the lockdown strategy. Few are willing to talk on record."

I mean that's a pretty easy statement to make. Surely if nobody speaks those ideas can't be scientifically challenged.

> "This Swedish exceptionalism is about principle, not epidemiology."

The lockdown strategy is very country dependant, depends on how quickly the infection spread, how much the health system can cope with. There is no principle in that. Some countries are really struggling now and Sweden would do exactly the same in these situation.

There is a certain "show off" attitude in this article which is highly disrespectful in regard of the situation elsewhere.
One of the reasons the government hasn't ordered a police-enforced lockdown here is that it probably wouldn't make much of a difference. Most businesses and people are already following the government's recommendations by staying at home as much as possible.

That said, there are some laws in place. Since three days ago you are no longer allowed to visit retirement homes for example.

https://www.krisinformation.se/en/news/2020/march/national-b...
On one hand I wish nobody harm.

On the other hand I'm sick and tired of the highly polarized modern world where you see idiots opposing common sense things such as vaccination -- maybe those people really need to suffer the natural consequence of their stupidity; swedish people seem to have a lot of common sense built into their society, so maybe, hopefully this decision won't negatively affect them.
No, that's a compressed row format, not a compressed block format.

MySQL's innodb, for example, supports per-row-compression. Its completely ineffective. Block compression in tokdub and myrocks etc is a completely different class.

MySQL's innodb also supporta kind of 'page compression' using the file-system's sparse pages. Its also naff.

The closest postgres can get is using zfs with compression. Its a lot better than nothing.
Where will be the last place to catch Covid-19?
Robert Kiyosaki: “Save Gold, Silver and Bitcoin”
Please make 4K the standard for all Youtube videos and all streaming! <3 Let's work on this together of putting quality first!
There's a linked article about the hunt for ideal glass that includes some details about 'two-level systems'. [1]

[1] https://www.quantamagazine.org/ideal-glass-would-explain-why...
Now a days China is working on Robots served for Humanity and Madical some of them are work online commands. Chaina is useing Internet Supply from local areas but to check the accuracy they are using https://www.speedput.com/ ptcl speed test and 100% of accurate result
I think if the author pays for Medium, it doesn't force you to log in. If they are on the free plan, then Medium wants you to pay instead.

I just stopped logging in (because it saves the "free articles read this month" between sessions in a way I can't clear) and instead delete local storage every so often. Seems to work but it's super annoying.
Looking at European flight statistics [1], Portugal looks to have ~3x as many passengers flying to/from Italy than Sweden does, with a similar population. From that, it seems reasonable to expect that Sweden would have an easier time of things, at least in the beginning stages.

[1] https://appsso.eurostat.ec.europa.eu/nui/show.do?dataset=avi... (change Geopolitical entity to Italy)
Feel free to copy the code and use it for other tools as well: https://github.com/adriaanvanrossum/saasforcovid.com
I don’t really understand this argument. In the countries with lockdowns, are people not dying there from Covid-19? And as you can see from other comments in this thread, it is not business as usual in Sweden. There are lots of restrictions in place in order to attempt to flatten the curve.
Purism do hardware switches for mic/camera and wifi on their Librem range. (Wish I could afford one of those machines!)
When everybody acts as if they're already infected, and so is everyone else, how is this helping?
Most people that I know have been WFH for some time, myself for 4 weeks. It's not like people are out and about like they used to -- the social distancing is self-imposed.
Zoom rolled their own encryption scheme, transmit keys through servers in China
A physical off switch for both would also be a great option.
We don't really know about transmission rates, since all we have is case counts, which are only a lower bound for infection counts (which are likely much higher).

You can't look at the growth in case numbers and infer much about transmission rate from that, because it is constrained by testing capacity and testing policy.
Exactly. Sweden is quite probably the least homogeneous country in northern Europe with huge changes in the population the last 10-15 years.
I think that's rather ambitious due to the file sizes. Plus most phones barely due 4k still.
Yea PostGIS is a must if you plan on doing any sort of geospatial work with Postgres. PostGIS is way ahead of most other databases when it comes to processing geographic (3D) types. For example calculating a 100km buffer zone for 2D geometry types is easy, but only PostGIS can support buffer zone calculations on 3D geographic types. Because of the curvatures of the earth, the math is quite involved but it can make a big difference in accuracy
With 558.7 people per million confirmed cases Sweden is not doing a great job [1]. I don't understand the tone of this article. What is there to feel "exceptional" about? Sweden has 5616 confirmed cases and 309 deaths which is a lot for its population [1]. Nothing "exceptional" except it is scary that it is so high for a small country with a small population. It is these kind of articles that cause slackness when you need to be extra vigilant. Lockdown works. Don't battle science with crazy, stupid logics.

[1]: https://google.com/covid19-map/?hl=en
Respiratory virus shedding in exhaled breath and efficacy of face masks
Unemployment rises to 4.4% during March
How to Go from Corporate to Entrepreneur
Sweden is quite different as a society and societal habits than the rest of the world, I don't think we can apply much of what they are doing to India or Iran, perhaps it's applicable to Norway or Finland.
Explaine.rs: interactive playground to explore the syntax of Rust
Private Equity Wants in on the Bailout? Spare Me
The latest ThinkPads have a physical/mechanical switch, but just for the camera... The mic can not be turned off with this switch...
I discovered PostgreSQL in a similar happenstance sort of way - working at a large telecom directly out of college in the late 90s, tasked with setting up a MySQL backed webapp to manage some internal processes. Fortunately, I was unable to compile MySQL on our HPUX workstations (issue with threads IIRC), PostgreSQL to the rescue. Been using it ever since.
In this case the government wouldn't have that information either.
Sweden is not very homogeneous anymore and the first deaths were disproportionately foreign born from one of the worse place to live in Stockholm.
This article just lays out shitshow after shitshow. What are the chances Bird will still exist in April 2021?
Note this is based on data during March largely before the mass lockdowns began. The median consensus expectation was 3.6%, highlighting employers laying off well before lockdowns were initiated.
If they’re sharing logins, maybe. I bet most families that manage to stream four things at once almost never try to do so on a single service at the same time. Can’t you still get Disney+ for about the price of upgrading to 4K Netflix? Or some-ads Hulu.
> another is mercator projections.

That's why for centuries the globes were both produced and used:

https://en.wikipedia.org/wiki/Erdapfel

Globes -- since 1492. Every child can understand that.
US payrolls drop 701,000 in March
Well, that large majority of developers not is native-speaking seems highly likely if you only look at output of `zoom.sh` startup script.

No pun intended.
> The higher-end models do support eSIM though and a lot of carriers seem to be adding support for this.

Apple's website has a list of carriers that support eSIM: https://support.apple.com/en-us/HT209096

From what I'm seeing, it's mostly the primary carriers and "travel data" providers that are adding support for eSIM. If someone is on a MVNO for daily use (I am), they might be out of luck.
Will Airbnb Become Obsolete After the Coronavirus?
Hey! FYI, we've just released the filters feature. Now you can filter blogs by companies.
You can lower the video quality in the bottom right menu. You can even limit your own camera's capture resolution, for example #config.constraints.video.height.max=360 . See https://github.com/jitsi/jitsi-meet/blob/master/config.js for all the options.
I think Stockholm / Copenhagen would be a pretty good comparison.
If the LED blinked for 5-10 seconds before turning steady then it might be more readily noticed.
Any idea does other manufacturers does this? Dell or Lenovo?

I'm impressed with Apple's attention to details like this! ️
I think that the location services use a mix of IP-based and GPS-based localization - GPS doesn't work too well indoors, while getting your IP from your wireless router (ie internet provider) is much more reliable.
I prefer 4:3 grainy shit from the 90s to a slick cg any day.
Absolutely, I don't think Sweden is a single person so it can make such claims.
I'm saying that this is an opinon piece that among other things state things about how the epidemy will develop in Sweden without basing it on facts.
Manage Your Crypto Portfolio in Excel and Google Sheets
What I find absolutely moronic is that a lot of employers here in Sweden keep their employees at their workplaces even though their work could be basically 100% remote. They keep saying "stay home if you feel sick or show any symptom. If not, then it's business as usual from the office".

A friend of mine works for one of the big insurance companies and all he does is back office related work and according to him, all he needs is a VPN access and he can do all his work from home. But no, he needs a doctors notice saying that he belong to one of the risk groups before they let him work for home so he's considering getting some doctor to sign a notice even though he's not in a risk group because he doesn't want to risk getting infected at work or while commuting.