skysight-inc/HackerNews huggingface dataset:
For me the main take-away of the article is: on the backend, between two HTTP services running on the same host (either through TCP on loopback or via UNIX socket domains, or between two hosts with good dedicated network), it is "better" to disable HTTP Keep-Alives, especially when there is connection stickiness from end-to-end.

(Or if the two services treat subsequent requests coming from the same TCP connection as independent and distribute them round-robin to their workers, than perhaps keep-alive is OK.)

My experience with this is through HAProxy which up to version 2.(1?) tied one client's inbound connection to one backed's outbound connection; thus I always forced the backend side to disable keep alive. (However lately HAProxy is able to pool connections if asked fore, thus this doesn't apply anymore.)

----

I wished the article made it clear that keep-alive on the client side of the TCP connection is still useful... I.e.:

[ Client(with-KA) -> internet -> load-balancer(with-KA) ] -->> [ routing(without-KA) -> backend(without-KA) ]
The Indiana Jones Effect (2007) [pdf]
Fortunately SAPGUI uses up so little bandwidth , can't Netflix and chill they still expect me to do work.
We'll need to update htop to use the Unicode 2x2 mosaics so we can cram 2 vCores per line and use foreground and background colors cleverly...
R https://cran.r-project.org/web/packages/ggridges/vignettes/i... ; d3 https://observablehq.com/@d3/ridgeline-plot ; py https://github.com/sbebo/joypy .
Quarantine Seems Like the Right Time for Google Stadia to Release Its Free Tier
Tor and Telegram Under Scrutiny: Will Russia Kill Anonymous Internet?
> Go look at the lighthouse scores for pages that use React + Redux + whatever + blah blah and tell me the user experience isn’t sub par

I looked at the Lighthouse score for my blog (written in React and all that blah blah). It got a 100 for performance, 100 for accessibility, 100 for best practices, and 100 for SEO. So I am happy to tell you the user experience is not sub par.
My guess is that you cannot get hard-currency reparations from poor people.
Xiaomi surpasses Huawei to become third largest smartphone maker
I am pretty pleased with PlutoTV, it's ad based but it does not bother me to watch ads to not pay a TV subscription. It's not live TV but between it and Prime Video I get as much TV as a want to watch. Which is limited I will admit.
It's not the setup that is bad, it's how there are a lot of people focused on your code, noticing your typos before you do.

It's bad enough when you are in a position of power like in a presentation or a class. It's nearly unthinkable when you are in a position of weakness.
Developing an Antibody Therapeutic ASAP to Confront the Pandemic
Eg. soda stream bottles (the water container) have an bogus expiration date, honey have expiration dates ...
Why do people feel the need to denigrate Wolfram at every turn? He is obviously a genius of the highest caliber, who has dedicated his life to making useful tools to advance science and engineering. He has made a tremendous positive impact. People should focus more on making their own positive impact instead of trying to tear Wolfram down for his awkward but ultimately harmless lack of self awareness.
Matches my experience on the hiring side.

In the group between "don't qualify" and "can't afford", we have a hard time with candidates who are unable (or maybe lack the communication skills) to effectively talk about how their experience+potential are a good match for even a generic job opening.

We don't do any algorithmic/challenge screening during interviews.

A common interview fail for us is to have a candidate that can't generalize from or build on something from his/her resume. This usually comes out during "tell us about project X that you worked on" and comments from our side like "oh, that sounds like project Y here. But Y is different this way - what are your thoughts about how to handle <insert small-scoped, specific difference>?"
We don't want the virus to jump to cross the digital divide, so we're taking every precaution. Stay tuned for updates about MasterCard and Discover.
The main issue here is not the `accept()` syscall unfairness, but the fact that the client connection is tied to the backend connection, and thus an imbalance can be easily created if that client sends requests which are out of the "average" behaviour.
Show HN: Barbra – Make online study groups to share goals, flashcards and notes
Hah, yeah it's occurred to me. I'm hoping they see the light before then.
Same here. I work from home and before this whole thing started, I'd generally get ~250 Mbps down. Over the last few days, since people started WFH and kids were out of school, I'm lucky to get maybe 15 Mbps. At one point yesterday, I was getting 1.2. Also have seen DNS resolution issues off and on for the past couple of days.
As someone fairly ignorant of Powershell, how well does it interact with the rest of the Unix-minded ecosystem? jq is nice because its plainly compatible with being piped into another command like xargs. I don't want a better jq if it means relearning and remastering everything else along with it.
> Why are all the masks single use? Why can't we make reusable masks that can be disinfected by UV light?

Probably because, in normal cases, it's easier to manage contamination with disposable items than items that need to be disinfected. If you can't disinfect, there's no ambiguity about whether the disinfection was thorough enough.

I think they may be able to be disinfected by UV light:

Evaluation of Five Decontamination Methods for Filtering Facepiece Respirators (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2781738/)

> UVGI, ethylene oxide (EtO), and VHP were found to be the most promising decontamination methods; however, concerns remain about the throughput capabilities for EtO and VHP. Further research is needed before any specific decontamination methods can be recommended.

This is also worth noting:

> It was also found that decontamination using an autoclave, 160°C dry heat, 70% isopropyl alcohol, and soap and water (20-min soak) caused significant degradation to filtration efficiency.
The only food I can think off that literally says "last forever if stored properly" is sugar.
How long will Americans be fighting the coronavirus?
"[Gold is] really a speculation asset (think bitcoin)."

Mark Cuban compared bitcoin to collectables. Like baseball cards. I've since thought of gold the same way.

[I'm a very simple bear and need ELI5s like Cuban's analogy to sort of grasp what's going on.]
Very interesting how in a matter of days, the Spanish flu has been renamed to the 1918 flu. Cancel culture writ large. It’s actually impressive.
Serious question: why are you using React for a blog? What interactive elements are there on the page that require it?

EDIT: Saw the link in your profile. I see lower numbers than you, though not by much. But I also see 2.6 seconds time to interactive with 3.1 seconds of main thread work.

Broadly speaking, that's fine for your blog. But if it was a site that you expect to add more and more features to over time that number is only going to go up. 3.1 seconds of main thread work to render an entirely static page isn't good. It's acceptable at best.
The numbers above don’t hold much under scrutiny.

The "herd immunity" approach is a dangerous gamble, as one of the big unknowns is "How long is the immunity after recovery from COVID-19" -- it can be anything between 0 (no immunity) and infinity (immunity for life). If acquired immunity holds for less than the time required for a vaccine to be widely available, "herd immunity" will quickly become a massacre. The first wave will knock off the medical system (even if somehow everyone over 60 is protected), ensuring that the second wave will be devastating.

I much rather prefer the South Korea/Singapore/Japan alternative to the UK one.

The race is to arrest the exponential curve, somehow, at any temporary cost, for if we don't we can't apply the working options for COVID-19 response from Japan, South Korea, and Singapore.
at that point why not just use a P2P based system.
Many of us are either young, not front end devs, or both!
Maybe they mitigated that by increasing cache sizes, but there is no information available about that yet. I would expect that, since they support 4 threads per core and that may drive up cache usage (even though one thread may be able to be useful while another is waiting for a cache miss to clear).
This approach is extremely seductive because on the surface it sounds so "pure" and "clean" but the reality is that on large projects it leads to some of the most horrific, hard to maintain CSS you'll ever see, no matter how hard you try to keep things in good shape. CSS is just inherently more difficult to maintain than HTML, and choosing a workflow that encourages editing CSS instead of HTML just makes things harder and harder over time.

Choosing an approach where CSS is treated like a third-party dependency that is _consumed_ by your HTML ends up being much more practical, maintainable, and scalable because editing and maintaining HTML is _easy_ — every time you change a class on an HTML element your changes are local and predictable.

Always thought this article by Nicolas Gallagher did the best job arguing this point:

http://nicolasgallagher.com/about-html-semantics-front-end-a...
No, but there is a sufficiently large number of problems that relatively few people suffer from that even with people specialising there are plenty of problems where getting people to a point where they are competent enough to participate in operations on real people, and then get them enough experience to be able to do it unsupervised is a challenge.

We can specialize more, but that has its own problems in terms of e.g. availability to deal with urgent cases. And ultimately we do not get away from the fact that giving enough people enough experience even with relatively rare situations is a big challenge.

Eventually we will be able to simulate the situations well enough, and this problem will go away, but it simply is not as simple as throwing more bodies at it.
The answer to your question is almost certainly, "yes". Any look at the grocery stores will confirm this.

Unfortunately, exactly in which ways we are overreacting, is trickier. It is possible for us to be overreacting, but Covid-19 still to be a serious problem.

One could also argue that, since we lose 25-60,000 people a year to flu in the U.S. alone, we were underreacting before. If we lost 25,000 people to a new threat, we would consider that appalling. It may be that we are overreacting to this because it's a new threat, but perhaps we were underreacting before?

Probably, it is some of both.
If you look at some talks on ideas behind oocss you can understand that a lot of elements share similar styles. It's all boxes in the end. There is this one talk about refactoring a huge pile of css into a small number of reusable visual styles, I think it was for facebook. The semantics of an element might be a comment box, but visually it's a box with a shadow and a chat box or sidebar might share the same look, thereby it would make sense to assign them the same class (classes are intended for extracting common visual styles). Doing styles the zen garden way was usually done via long selectors to target the elements and you would end up with css code that is tightly coupled to your markup. Moving html sections would cause the styles to break. Using strictly visual styles (ie functional classes) makes it easier to distinguish the style aspect from the content and HTML is already a presentational medium.
The article hints at that.

It's to make coordination with people on land easier. If that's Russia, use Moscow time.
I believe that Florida is also one of the oldest states which might skew the numbers. Too many thermometers doesn’t seem to me like it would naturally skew the data in the way that it has.

This info, paired with the recent infection of a US congressman from Florida, makes me suspect they may have a lot of unrealized cases.
the tutorial could be dramatically improved by showing some json data and then the results of processing.
My cable gets pretty slow in the afternoon. From usually 80mb/s to around 4. Ping is up from 15 to 80.
Social Justice Warrior Guide to Winning (Almost) Any Argument
My favorite RPG theme comics:

Order of the Stick: https://www.giantitp.com/comics/oots0001.html

Keep on the Borderlands: http://thekeepontheborderlands.thecomicseries.com/comics/fir...

Both are SFW.
U.S. life insurers impose waiting periods to skirt coronavirus risk
Hydroxychloroquine causes viral load reduction in Covid-19 patients
Did a US official start it on a platform controlled by the US... then yeah maybe.
Another thought on this - Apple's push to state driven interfaces with SwiftUI would make it a lot easier, provided the Mac and iPad versions are structured in the same way.

Which they probably will be because there are maybe three development shops that will spend any time thinking about how to make their Mac interface better optimized for a destktop OS.

Still not saying this is a good idea, but it's an idea. Wouldn't be surprised if Apple were exploring it internally.
A few of us have did successfully a Non-play2win format, called "Commoner decks". All cards have to be commons.

Also, commander games in groups also defeat the P2W ideal - if one person grows too fast and is too big a threat, everybody else will smash them. I've played games with 11 people before. The nail that sticks high gets the hammer.
Hi folks, we built Barbra to help students share resources and motivate each other to learn during the semester.

Specifically, students invite classmates to a study group, pick a daily/weekly learning goal, and compete for who can hit their goal most often.

We are trying to put all the tools one needs to learn in one place.

This is quite early stage and we would love to hear if you think this would be useful to you?
> The numbers above don’t hold much under scrutiny.

Can you tell me which exactly and indicate why?
I'm a simple minded engineer. In my work I use ventilators frequently and I often have to service them so I'm not entirely unknowlegeable about these devices.

There is a large need for mechanical respiratoration (a ventilator) then I have a thought.... Has anyone considered one HUGE pump working as a ventilator? The average hospital has a capacity between 300 and 1000, why not have one huge shared resource as a pump. The pump should have the capacity of sourcing sufficient O2/Air to hundreds or thousands of patients. There are obvious supply chain and technical challenges (thinking of how you create all that O2, the valving, filtering etc).

Example: 6 liters of air/breath * 500 patient bed hosptial so a pump volume of 3000 liters * 12 breaths or 36000 liters/min capacity, pumps of this magnitude should already exist. This effective giant set of bellows could then could source into a large diameter tube which runs throughout an entire hospital or nursing home. Each patient would have individual takeoffs with valve controland similarly a return exhale system (one giant collector, sterilizing-filter, etc).
International media is probably not talking too much about it, but we are really trying to do our best!
Universities are helping with the production of hand sanitizer and mask production, startup companies are building systems to manage the after-outbreak with the government and the entire education domain is being really productive with online lessons! And, lot of (tech) companies are still hiring!
Wow, what a blast from the past!! This was a great source of inspiration back in the day.

If you're not familiar with the project, I suggest checking out the Wikipedia article:

https://en.wikipedia.org/wiki/CSS_Zen_Garden
Exactly?
There aren't many 384-thread x86 boxes around, certainly none below US$ 10K
Thank you for questioning that. Some articles (like [1]) said he was arrested, but the BBC said[2]:

> Four days later he was summoned to the Public Security Bureau where he was told to sign a letter. In the letter he was accused of "making false comments" that had "severely disturbed the social order".

> "We solemnly warn you: If you keep being stubborn, with such impertinence, and continue this illegal activity, you will be brought to justice - is that understood?" Underneath in Dr Li's handwriting is written: "Yes, I do."

I misunderstood. But the point remains the same, just replace "jailed" with "threatened".

1: https://www.latimes.com/world-nation/story/2020-02-06/corona...

2: https://www.bbc.com/news/world-asia-china-51364382
Virus outbreak crosses boundaries
Tower for Students
What Are the Best Materials for Making DIY Masks?
Beautiful UI. Can I import my decks from Anki?
They're also leaps and bounds better as IDEs than VSCode. I'd gladly exchange some "clunky"ness for a better experience and more features driven by a proper GUI.
It is dumb. In the USA Corona deaths @ 150 so far while flu deaths @ 34K/year. Even Swine Flu had 4K deaths and MSM didn't bat an eye. Italy proving single payer socialized medicine has less talented clinicians and administration.
You're saying the fact that Stephen Wolfram comes off as a narcissist is unrelated to the fact that he names everything after himself?

Python isn't called "the van Rossum Language". C isn't called "the Ritchie Language" (or "the Bell language", for that matter). Lisp isn't called the "the McCarthy language". We should judge Wolfram Research's products in spite of their unfortunate names, but denying that they're the result of Wolfram's narcissism is silly at this point.
Ask HN: What are the best charities to support in response to Covid-19?
Seeing my community come together in response to COVID-19 is really refreshing and I'm looking for advice on where to put my company's money to help society work through this, even in a small way.
Yes, might be interested in getting your assistance. Send an e-mail through the info (at) litiholo address, and mention you reached out on HN.

Anticipating the first printer will be single-color, just to keep it simple. Then as quick to color as the market will allow.

The printer holograms will be reflection holograms, so they have almost no chromatic issues. We've made many nice full-color holograms for commercial application. Can't wait to get it into more people's hands!
Combining knowledge graphs, quickly and accurately
Twitter Needs Crisis-Verified Labels
> This one likely came from one bat contacting one human in Wuhan

It's just as likely that it comes from pangolins: https://www.eurekalert.org/pub_releases/2020-03/sri-tcc03172...
It is the same with handlebars. You put your todo element between {{#.}} and {{/.}} which means "do this for all elements" and then pass only the "Todos" array to the template. No loop in Javascript either.
I'm a much bigger fan of telling someone they have 24h to build me a toy deliverable to test how well they can work under pressure and scrape code together. That gives you a better understanding of how well they can do that on the spot just make sure to have then walk through the code the next day so you know they actually wrote it
I don't think the backbone of the Internet cares about this. ISPs get a box with all of Netflix's content in it, so you probably never go out to the Internet to watch something on Netflix. (YouTube also does this, though obviously they don't cache every video in every local ISP's cache, and I believe that Apple has a system like this as well.)

If there is any slowdown, it is likely due to limitations in the last mile. Netflix isn't sending 4k video streams from California to everyone else in the world individually, assuming everything is working.
If you can, try to talk with your internship coordinator about your concerns and see if they have any contingency plans. I don't know which company your internship was with, but I recall interns having some flexibility in their placement at AWS. The company might be able to place you in Canada (AWS, for example, has a large presence in Vancouver).
Show HN: Human Programming Interface
> That being said I now primarily use iPython for advanced shell tasks as I can leverage all of Python's libraries like JSON or YAML.

TBH they're both excellent choices. nushell looks really good too. The point is not to scrape text - rather than write a bash script that can handle JSON properly, write a pwsh/python/nushell script that handle everything properly (ie, by selecting fields rather than scraping text).
I'm not quite sure if this comment is about space travel, or international O_o
Covid-19 Testing in City Sewage
Covid-19 map: Tracking the coronavirus outbreak worldwide
SQ is so much more than just retail businesses. Every haircut I've gotten in the last few years was charged through square, many of the small business restaurants use square, etc etc
> Wikipedia is just hyperlinked documents.

Wikipedia at the very least has the editor for all those documents.
One word: Danganronpa.
Right now our full-color kits only handle 2"x3". We are planning to come out with a full-color 4"x5" upgrade in the near future, with stronger lasers.

However, all of our hologram film is full-color sensitive, including the 6"x8".
I'd call it more of an "expert system" - it has a HUGE amount of rules and methods built-in, but at the end of the day it's all deterministic.
None of the residential providers have enough interconnect capacity to actually support what they have been selling if customers start using even 10% peak bandwidth promised by the connections.
A Brief History of Quantum Computers
Papercall.io – Scala Love Conference
In addition to saving money, they will also make the US more resilient by helping avoid a concentration of expertise and an infrastructure mono-culture.

I suspect that ideas like this will become more popular as the US asks itself "what happened to our resilience?"

[1] https://en.wikipedia.org/wiki/Self-Reliance
There’s very good reason to panic early when dealing with an exponentially growing threat: https://youtu.be/e2Kga5HeAqk
Let's not forget how much we've slowed broadband rate of improvement lately. In 2000-2010 speeds were doubling every few years with ADSL generations and fiber was just around the corner. The tech is there but the investment is not, from engineering POV we could easily and cheaply have 10G at home in western cities for everyone.
My normal approach is to measure and set up separate alerts for "error rate" and possibly "timeout rate". You definitely want to know about those, but "mean latency" mixes those metrics with the latency metrics for successful requests, which makes it less sensitive to changes in either one.

In general I agree that averages aren't always bad. One additional advantage is that it's often possible to generate robust confidence intervals for averages, but it's often not valid to generate CIs for medians/percentiles without introducing other probably flawed assumptions.
Mecidiyeköy Escort Bayan Seksi Öğrenci Seren – Escort Blog Carazed.com
We are still working on it, but definitely soon. If you need it urgently, then just write me at gabriel@barbra.io and I'll find a way to get the deck to Barbra.