skysight-inc/HackerNews huggingface dataset:
1. Is it possible to get COVID-19 twice?

No, doesn't seem to be, but you might still have "viral shedding" for a bit even after you are "recovered". meaning you could still be contagious.

4. There's evidence that there are multiple strains, can you get both strains?

You shouldn't think about them as multiple strains, as of now it is 1 disease.

5. What's the likelihood that a mutation will occur once treatment is more widespread?

Mutations occur all the time, there are already 10's of known mutations of virus, it doesn't mean there are 10 separate diseases.

6. Does the heat make it significantly less likely for you to get COVID-19?

There's some evidence warm weather slows spread for viruses like this, but we can't assume that about this virus yet. A good counterpoint is Qatar adding 258 cases in one day, it's hot there.
I was unfamiliar with request smuggling; here's an explainer: https://portswigger.net/web-security/request-smuggling

The first in-band signalling attack I came across was the blue box [1], invented in the late 1960s. It still occasionally worked in the 1980s on older phone systems. It amazes me that we're still creating new systems vulnerable to in-band attacks.

[1] https://en.wikipedia.org/wiki/Blue_box
The article doesn’t say whether the status of survivors are declining or not, only that they remain positive.
What are you talking about? I’d love to see you actually expand on this and explain what you mean instead of just pooping on it and saying people believe in fairy tails.
Looking at the names of the contracting companies , I would guess that most of the contractors are Indians. As such they are on a visa and their only options are either keep working or get laid off and go back as you won’t be able to find another job very soon in this climate.
Dense grid of traffic-light oscillators would work too, it wouldn't move across the board.

So could a bunch of beehives/loafs/etc.
Out of curiosity, does anyone know the hardware specs of the machine he is using.
I think doxing is(or should be?) A crime that should have you see jail time, as is this threat/conspiracy you just posted.

Lawful managemement decisins are fine, the US is not under emergency officially and there is no direction from the government or CDC asking employers to make people work from home.
The secret radar? The massive, seen from the air, heard on the radio, reproduced in one of the top selling games of the last few years (PUBG) radar is a secret?

I can't wait to hear about the secret arch built in St Louis for the World Fair.
Payroll for a company the size of AirBnB is easily north of a billion a year.
Not completely: https://www.theverge.com/2020/3/13/21177964/apple-stores-chi...

They aren't done with the virus, but the worst seems to be past. Whereas if it could easily re-infect then I would expect the case numbers to strictly increase.
Y2k wasn't a bug at first, it was a cost and space saving feature. It only became a bug after the practice never changed until very close to the deadline.

Just a public service announcement that the decisions you make today for good reasons can, in retrospect, be seen as a huge mistake. The future view of your decisions will always have better knowledge than you have when you make that decision.
You should be teaching fundamental CS/IT concepts not rote learning the latest JavaScript frontend frame work.

Things like the TCP/IP stack and the OSI model, Types of programming languages, number theory (you can convert between decimal octal, hex and binary with out a calculator)
This should be its own post on HN! Great story.
It looks like the article is written in Chinese.
Who says the universe can't "know" all the ways? That's like saying momentum can't be conserved because the universe can't know all the ways that we could transform momentum into other forms of energy and back again.
The false positive rate is nowhere near 80%. All positive test results - both false and true - are at less than 5%.

80% might be the probability that an asymptomatic patient who tests positive is actually clear, but that's not what the statistic "false positive rate" means.
Very requested for embedded markets (all kind of devices) and you can also specialize into other things, like Android customization.
The question to me is: how do we avoid another FIPS-like disaster, where the government standards fall behind the times and lead to worse security then you'd otherwise get?
My understanding is the opposite.

To me it seems that in the future they for some reason need to access files that can only be opened on that computer.

If time travel is indeed possible and relatively common, it might be a better business decision to just send someone back in time to fetch a working version of that computer than try to recreate one from archived documentation (if any of it survived).
What does crisp mean in this context.
John Oliver is a mixed bag. Some well researched stuff, some extremely badly researched stuff, and some stuff that cannot be identified as researched/not researched - mostly appeals to common sense - and is plastered over by some jokes.

I had my "aha moment", when he claimed on the show that you have to register revenge porn with the copyright office (this was before most laws which explicitly target revenge porn as a criminal offense) and further suggested that copyright infringement is more or less the only avenue open for victims at the time. But that's simply not how copyright works (since the Berne Convention of 1886), and completely forgets about how image and personality rights work in the US either (something Gawker learned from Hulk Hogan). It was extremely bad advice to anybody watching who was a victim of revenge porn as it discouraged people from even trying to reign in the perpetrators at all. At the same time, him addressing this issue and requesting reforms especially making criminal laws, was a good thing
The original Rogue still holds up as a great game. I've played the DOSBox version and found it to be not quite as deep as Nethack, but more fun overall.
They’re not wrong. Software does fill in many gaps for photographers. Photoshop is a great example of this.

Amateur astrophotography is a good example of where software is utilized to fill in gaps in the hardware all of the time. Color correction and focus stacking are often done in software, star tracking mounts are using software, and so on.
Would it be too wrong if we took XAML and standardized it for other languages? Pretty sure it's generic enough.

Look at Avalonia:

https://github.com/AvaloniaUI/Avalonia

Seems they wanna spec it out:

https://github.com/microsoft/xaml-standard
He's talking about languages coming on going. "Languages, especially dynamic ones and their runtime environments come and go like fashion. When your target platform suddenly gets deprecated from the runtime you’re relying on, well then you’re just fucked and out of luck."
A slightly more informed article on huffpost:

"Can You Get Coronavirus Again After You've Already Had It?"

https://www.huffingtonpost.co.uk/entry/can-you-get-coronavir...

Edit: Also, Fortune:

"Why are patients who recover from coronavirus testing positive again?"

https://fortune.com/2020/03/06/coronavirus-recover-test-posi...
If you can get a copy of National Lampoon's Aggression Issue (1980), I recommend P.J. O'Rourke's piece...
but the Chinese have been trying it in vivo in real ICU patients and they discovered it's better than placebo
> using a C example

I see; it's okay for you to use the English language with sentences involving cobble and coddle, but not okay for me bring that back around into a computing context, using a language other than APL, J or K?

I used C because it's a lingua franca of computing, in which it is natural to use identifiers like cobble and coddle.

We can use Python, if you like, or JavaScript, Pascal, Lisp, Haskell, Basic, ... or a Makefile, shell script, HTML, CSS, Sendmail config file, LaTeX, ...

Thea argument is that coddle and cobble are, in fact, plausibly confusable as identifiers in computing, where we don't have the right kinds of linguistic context to spot a mix-up.

If I have <div class="cobble"> in some HTML, and the CSS has a .coddle { ... } selector, I can see not being able to spot the problem.

Furthermore, I have a point in that a sequence of symbols in your APL program which is particular to that program and not a common idiom is not comparable to a word like "cobble". It's more like "cmzblx" versus "cmzdlx".

Because (at least local) identifiers can usually be freely chosen by the coder, I can avoid this kind of problem. I can easily change "cobble" to "horse" (which doesn't look like "coddle") throughout a source file and be confident that it still means the same thing, because the letters are not operators that encode meaning.

> to understand some of the coolness, you really do just need to trust the evangelizers

They're too late; I might have been fooled as a 16-year-old in 1987.

> What is this weird x=2 syntax? I just want 2 in my rax register and C doesn't let me do that?!

When I first saw a BASIC program with assignments to some variable X, I thought they were a system of equations for the machine to solve. I parsed the syntax right, though; it was just the semantics that was off.
With the economy strangled, how would it be possible to build more hospitals. At some point you can't ask people that don't want to do it to work for free.
There's a possibility for false-positives. I think there's a type of test that looks for an enzyme that you could have without contracting the virus.
I saw an article in HN this morning, but I can't find it anymore.

Also, false positives could happen as a result of bad logistics and management of the specimens.

Some useful sources that seem to validate the occurrence of false positives:

- This research on testing specifically calls out the fact that their method didn't yield false positives in trials: https://www.eurosurveillance.org/content/10.2807/1560-7917.E..., which seems to indicate that it's common for false positives to occur when developing testing methods for new viruses.

- This research talks about false positives in asymptomatic patients: https://www.ncbi.nlm.nih.gov/pubmed/32133832. "In the close contacts of COVID-19 patients, nearly half or even more of the 'asymptomatic infected individuals' reported in the active nucleic acid test screening might be false positives."

- This guy in Egypt is apparently a false-positive, likely due to a mismanaged testing protocol: https://www.livescience.com/matt-swider-stuck-in-egypt-coron...
Actually he tested negative. That's what is said in all news in Brazil.. lost in translation or bad intention?
I don't understand why a hobby project for a few people warrants what is essentially a takedown post.There is a ton of open source projects that are not needed. People do them for all sorts of reasons. Live and let live.
UK local elections postponed for a year over coronavirus
Before the opening of Melbourne Fortress: a new gaming and esports venue
I did some reading on coronaviruses and learned these viruses do not have reverse transcriptase, which would allow an RNA virus, like a coronavirus, to incorporate into the host genome, becoming a permanent resident. In other words, the viruses lack the machinery necessary to convert themselves into DNA and cannot cause a chronic infection.

That said, it is possible that people co-infected with another RNA virus expressing reverse transcriptase would allow the coronavirus to incorporate into the host genome
The abstract: https://www.osapublishing.org/optica/abstract.cfm?uri=optica...

The paper: https://www.osapublishing.org/optica/viewmedia.cfm?uri=optic...

I've only skimmed it, but it looks super interesting.

I was expecting some kind of computational holography wizardry, but no, it's just a multilayer diffractive lens with circular symmetry which produces a beam with a really stretched-out waist.

Usually diffractive lenses are limited to a single wavelength — they're using 850 nm. Is there a way something like this can work over the whole visible spectrum? If not, this might be more like a lightsaber than a camera.
Machine Learning Financial Laboratory
You know the other trending story about false positives in HN.
Germany has an unemployment rate of 3.2% so it seems something’s working. Youth unemployment is also far lower in Germany than the European average, 7.6% rather than 23.5%, and unemployment among those who finished apprenticeship schemes rarely lasts longer than six months[1].

[1] Youth Unemployment After Apprenticeship Training and Individual, Occupation and Training Employer Characteristics

http://ftp.zew.de/pub/zew-docs/dp/dp14052.pdf
(Warning: very layperson understanding below)

There are many variants of the flu. Most of them are well-enough understood to vaccinate against, and most of those have an already-tested-and-approved vaccine. The yearly flu vaccine is a combination of those vaccines for the strains the public health experts think are going to be an issue that season.

Sometimes they get it right. Sometimes they don't, and we have a bad flu season (see also: this year).
Pictures of the radar array show up on Reddit r/AbandonedPorn all of the time. People have climbed on top of it for pictures.
Corona is slowing down, humanity will survive
yes they tried it on ICU patients with better outcomes
Every budget within an organization is a moral doctrine. By evaluating company outlays you can tell where priorities lay. Facebook apparently doesn't care that much about doing business with a company that would have such a policy.
China’s first confirmed Covid-19 case traced back to November 17
Wow, an ATO exploit that only received a $6,500 bounty? This signals to grey-/black-hat researchers that their research efforts or Slack bug disclosures are best directed elsewhere..
There's already FCC rules for that sort of thing, it's illegal whether you buy, lease, "license", or even build the transceiver.
Finally, a usecase for git blame.
I agree with all his arguments, as long as I'm only writing HelloWorld.c :o
You are referring to the West African Ebola epidemic that started in 2014. There is also an ongoing outbreak in the DRC that started in 2018. That probably isn't receiving much international support right now.
That's the classic predicted outcome for any new regulation... which rarely turns out to be true. Consumers will want to buy their own phones and as long as that is true, businesses will adapt to the new regulations to satisfy this need.
If this is anything like SARS, a lot of these people who recover but have lung damage are going to be dead within the next 3 years. To me the percent chance of any given age/gender dying is a complete red herring, because what you should care about is your chances of getting ARDS, and afaik that's around 20% across the board.
GitHub's new notifications: a case of regressive design
The problem with such a non-compete law is that your public service doesn't really need to change much over time, but a commercial business might figure out a way to make money off of it and suddenly the private side changed forcing the public side to shut down or something like that and now everyone that was building on top of that public stuff gets screwed over. The side-effects are so big, it's hard to capture in a law.
On the bright side, that new way of life could help reduce the rate of climate change if it means fewer international flights, more local production of goods, the collapse of the cruise industry, etc.
The mortality rate in Denmark is still a flat 0.0
Protecting against request smuggling:

- If you don't have a proxy fronting traffic, no action required

- If you're behind Fastly/Cloudflare [1] or Akamai [2], no action required / they protect against this attack

- If you're behind AWS Cloudfront, no action required / they protect against this attack

- If you're behind AWS ALB, you're vulnerable by default but can opt-in to protection by enabling the "routing.http.drop_invalid_header_fields.enabled" attribute [3]. They initially had it on by default but it broke customers

- If you have a different proxy (e.g. some other provider or your own nginx, haproxy before 2.0.6 [2], etc), you might be vulnerable

[1]: https://portswigger.net/research/http-desync-attacks-request...

[2]: https://portswigger.net/research/http-desync-attacks-what-ha...

[3]: https://docs.aws.amazon.com/elasticloadbalancing/latest/APIR...
I think you're referring to so called electrically tunable lens. Most every camera these days uses an electromagnetic diaphragm to control the aperture.

And yes, it's a electrically tunable lens are a thing. Optotune is one company I've heard of making hardware for the industrial space, there are probably others.
I imagine with many tests, even at 0.1% eventually you'll get some false positive due to human error, or other things going wrong
I would, as long as both sections are on the same page. Or even three sections: on topic, tangents, on medium - in that order (or even fourth section at the end, meta).

Point being, I love me the occasional rant about a page's bad design decisions, or some vaguely on-topic meta angles. I want to read them all, but preferably in order, and not mixed up together.
Obvious question is whether the reviewed patients were the patients with significant complications.
This is what I fundamentally don't understand.

The condition can ONLY improve in terms of new cases, not deaths, 1) if there is a vaccine, 2) 40-50% people get infected and develop immunity, or 3) people start living in bubbles, including masks and gloves and stay away from each other, that there spread is controlled.

We know 1 and 2 have not happened. So either China is still in lockdown and this lockdown is how the life will be till there is a vaccine, or the data is not correct.
Brogue is a great spiritual successor to Rogue:

In nethack it's easy to just grind until you're invincible (barring YASD/"yet another stupid death", a death usually brought on by inattention rather than bad strategy or tactics) and then the endgame is a cake walk.

In Brogue (at least at the skill level I'm at), dashing through the last few levels to the amulet using up a lot of resources to survive and escape is very common.
>> It's something I bring up when people around me from my age (late 20s) say they're not worried.

If they really think that, it's sad. Until it hits you, you really have no idea how your body reacts to it. Plus, this is new, we don't know everything about it.
Is Qatar hot and dry? I think heat with humidity are more likely to dampen the spread compared to just heat
Stepping Up Isolation
Been remote 7 years, here's something I wrote about it recently: https://joecortopassi.com/articles/rules-for-remote-work/

1. Communicate early and often.

You are so easily forgotten when remote, whether it’s on purpose or accident. Send lots of emails and slack messages throughout the day, even if they totally aren’t necessary. Most people’s thought of remote is “when I’m sick or lazy, I just say I’m working from home and take a day off”, by over-communicating you make them realize your situation is different

2. Set clear start and stop times.

When it’s your start time, sit down and open your laptop. When it’s your stop time, close your laptop and walk away. Every time. It’s too easy for work time to slowly bleed into life time, then you end up working 12 hour days with only 4 hours of output to show for it

3. Have a place to ‘focus’.

Everyone has different boundaries when it comes to normal work, but make sure you have an area that everyone understands you aren’t to be bothered unless the house is burning down. Doesn’t mean you don’t work where ever is comfy, just have a place you instinctually go that tells yourself and others “stuff just got real, I have to be heads down for a bit”
Indeed, good/interesting ideas doesn't equate good entertainment, unfortunately. Personally I find most speculative fiction to be boring, childish, and full of worn-out tropes (hero's journey, again?!). But in non-fiction I can heavily recommend the writings of Mark Fisher (aka k-punk).
Nice text but Muster in german also has a positive conotation. A Musterschüler (Musterstudent) is basicly a flawless student.
Exact quotes and precise figures. Gives the intellectual "crunch" in an arena with lots of speculation.
Do you mean "feature phones" or landlines?
While i agree that we should be careful about this, i would say that the phrase "Some patients might have around a drop of 20 to 30% in lung function" is not a sure sign that we should be scared.
More data and more time is needed to figure things out.
Sulfonamides were used widely before penicillin was (1930's).

https://en.wikipedia.org/wiki/Sulfonamide_(medicine)
That's working well
Is there any published advice on re-using N95 masks? I have a handful from purchasing years ago that I'm curious about the associated risks from re-using.

edit: My use case is entering public space, possibly air travel, where the presence of COVID-19 is unknown. I'm not treating or providing care to any persons who are knowingly infected.
When legality and morality conflict.
I don't see interactivity as part of the standard. It's all static as far as I can tell. There are language-specific API's, but that defeats much of the purpose of a markup language: you have to use two languages: the XML, and then the language-specific API's. Lack of state-handling is part of why HTML/DOM gui's are Rube Goldberg devices.
This is a very weird article. I'm not sure if its just an old article that got recently republished.

Because the latest research shows that there are two strains of COVID and reinfections are happening because of the other strain infecting you.

https://academic.oup.com/nsr/advance-article/doi/10.1093/nsr...

https://www.cnbc.com/2020/03/04/coronavirus-chinese-scientis...
I do consider free will to be an illusion! But making that argument is far from the slam-dunk that the OP implied, even in the face of quantum mechanics. I don't believe in superdeterminism either. The problem with SD is that it requires all of the information about all future events to reside somewhere now, and there is no known place in the universe where it could be hiding.

See:

https://blog.rongarret.info/2018/01/a-multilogue-on-free-wil...

BTW, I also believe that it is a defensible position to say that the moon does not exist, but again, this is not an easy argument to make. See:

http://www.flownet.com/ron/QM.pdf (or the video version: https://www.youtube.com/watch?v=dEaecUuEqfc )

https://blog.rongarret.info/2015/02/31-flavors-of-ontology.h...

There's a lot more where that came from if you're interested.

P.S. I love your handle! I see you created this account for the sole purpose of responding this comment. How did you even find this thread? It has been downvoted into oblivion.
No it isn't. If the whole "page" is Flash or Java - and this absolutely used to be a thing - then if that's blocked you've got nothing. With Javascript the page author has at least the option of doing it properly i.e. semantic markup plus (optionally) progressive enhancement.
But their data also shows TCM is better than placebo. Is chloroquine more effective than TCM?

Keep in mind that antivirals only work well if you start taking the during the first two days, TCM is reasonably safe and over the counter, whereas if you're in the US then good luck even getting tested in the first 10 days let alone prescribed something.

C.f.: https://www.sciencedirect.com/science/article/pii/S104366182...
I wonder?

I know that in places like Qatar and India, there is a tendency to use artificial cooling. (I'm pretty sure India is the single biggest growth market for air conditioning on the planet.) I'm just thinking, if a bunch of people gather in an air conditioned theater, would it even matter if it was 95 degrees outside? Just a thought.

I guess to really know, we'd have to wait and see what happens in places where it is hot, and humid, and artificial cooling is not so widespread? Like Sub-Saharan Africa.
Show HN: I made a chat roulette for remote workers