skysight-inc/HackerNews huggingface dataset:
Tolerances are like margins of error. As the error range goes down, the exactness of the specification goes up. Or as the others said, the precision.

If it makes you feel any better, I have to pause for a beat any time I try to put an adjective in front of 'tolerances' to make sure I don't sound like a dope.
> they are "easy" to jam in the sense that when you have two radio signals on the same frequency, they will interfere with direction finding

Nope, it's a more sophisticated algorithm they're using. Our company held all the patents for locating GSM cell phones calling 911 using UTDOA. The U is uplink, meaning the network of receivers listens when the phone talks. The patents entail each receiver taking a sample of the signal they heard in that time slot on that frequency. They upload the sample to a processor which tries to correlate all the samples with some DSP math, sliding them around in time to see if they match. If they do correlate, the offsets of each one is your delay for doing trilateration.

So if you have multiple talkers at the same time, they can probably be subtracted out by the correlation step.
This is the same surgeon general that was saying we should limit testing to people with symptoms
Why would operating as normal and mostly ignoring the problem cause a "slower initial burn"?

It won't. This is nonsense of the most obvious kind, because we're already past the stage where the virus is spreading quickly.

In fact the reverse is likely to be true. Lockdown minimises the number with the disease, but that number is not zero.

Which means that if immunity is possible (questionable for a CV, but let's pretend), immunity will spread wider and wider in each lockdown wave - and the health system won't be swamped.

This plays for time, raising the odds that a vaccine or some other treatment will appear.

Successive lockdowns will do exactly what they're supposed to do - spread out the peaks, minimise casualties over time, and minimise health system stress. (Although it will still be very high.)

What they won't do is keep businesses afloat. Mass bankruptcies are going to be a huge problem throughout the entire global economy.

Other countries understand this, and are stepping in with financial measures to help. Presumably the UK doesn't want to do this.

The tell is the fact that the government has plans to quarantine for four months - i.e. place under house arrest - over-70s who are infected. Without access to intensive care - it won't be available if the NHS is swamped - the mortality rate in this demographic is going to be higher than that of any other developed country. It could easily be twice the nominal 15% CFR for this demo in China.

It's hard to avoid the conclusion that the real plan is to cull the old and sick while pretending that's not happening.
Definitely. I propose we do this properly using only GNU parallel and m4 macros.
I would be on board with the UK plan if it was more proactively protecting the at risk population.

Why aren’t large events stopped? I get one infected person won’t infect a whole stadium... the main thing for me is people from all over go to these large events and so there is a high risk of introducing the virus to new areas by having them.

There should be more testing and local alerting. It would keep people on their toes and help individuals be more aware of potential risk around them.

At risk groups should be making use of social distancing at a minimum.

Even with this it seems risky. That said I understand the approach and reasoning. The implementation - so far - seems half baked and risky as hell.
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It'd be quite disappointing to get no response back…
Are you serious about this? Surely nobody assumes all toilet paper is imported from China?
Surge pricing in itself affects people differently across income levels. If the end goal is to have availability to sanitation supplies across the population to prevent the spread, then surge pricing is not the answer.
You really don't understand car enthusiasm. These are more than just toys for some people. There's a certain soul to them.

And this "nuisance" is overstated. The amount of harm that enthusiasts do in terms of noise and air pollution are absolutely negligible - don't clutch pearls.
This is a completely new disease though. If a vaccine can be found we can surely build herd immunity, it's even simpler than with measles, but you need to find that vaccine first. Measles was still killing thousands of people every year until the 70s.
The job is literally to be prepared for the future on behalf of the country. If you take active steps that make us less prepared for something and we therefore suffer greater consequences when it happens, I have a really hard time describing that as being something outside of your control.

Under normal circumstances, an exigent crisis such as war would make a President significantly more likely to be re-elected. He tried to start a war with Iran not long ago for this very reason.
Note that there is a field for this, though it's largely focused on our solar system for obvious reasons: https://en.wikipedia.org/wiki/Planetary_geology
spreading yourself to thin is also a recipe for depression.

my conclusion is to never go depth first (either specialist or generalist) unless you're feeling clear benefits right away.

balancing
Learn Coding with Fun?.. Via Creating Games and Free Session[Experimenting]
Greetings to HN Fam!

I'm a Game Developer with over a decade(since 2010) of XP as a Programmer, began with C/C++ and evolved to C#. I'm aiming beginners and although I already also have a free tutorial on YT that should act as a portfolio to build up some credibility (please comment below and I'll post the link if you're interested).

Do note that I'm not opening up a money-making machine or a business, I'm just curious to understand how people learn to code, and mostly, even some of the most educated CS students that I have come across lack the skills to code in the real world. So I think there might be something that's missing out there.

I've come up with an idea of teaching how to code via creating a simple game, the game would be a 2D Runner.

Tech Stack: Unity w/ C#

There would be 5 sessions. The first one is free, the other will cost 'Pay What You Like' model. Anywhere b/w $0 to $3 for whole programming tuition.

There's no team behind this, it's just me so if you have doubts I can clear those as well, but you won't have any because everything basic will be covered.

Email for entry: kvunitcodes@gmail.com w/ Subject: Let's do it!

Also, this is my very first post.
"Stop it because it's unimaginable that the UK government is intentionally trying to kill off it's old folks no matter how much money that may save the NHS, in no small part because that would be akin to a genocide for profit"
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That is amazingly cheap, I expected an order of magnitude more.
I love showing students sed, and then teaching them regular expressions, then showing them sed again, and then showing them stuff like this. sedtris is another fun example:

https://github.com/uuner/sedtris
I don't know what parent thinks, but if you suspend sales tax and keep the price the same, you suddenly earn much more. This increased profit incentivizes producers sending product to the area with shortages, and increasing production to send to that area.
No SARS was around 1.2 while COVID-19 is between 2.5 and 4.
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>I can't see how you could force a company to accept a refund when someone changes their mind

This only makes sense if no refund policy was posted ahead of time. I don't know about the situation in Australia, but most stores in my area have their return policies printed on the receipt, and nearly all of them have them posted in-store or online.
Healthy food is typically less expensive than junk food. The problem is education and motivation. I think diabetes is more a disease of affluence. When you can buy twinkies and pork chops you're not actually poor. When you are really poor you eat rice and beans and some vegetables you grow for yourself. And then you don't have diabetes typically.

Disclaimer: Not every T2D is purely from a bad diet. But many are.
Doctors don't specialize early. In fact, they specialize late.
What about the system that runs the containers?

"Amazon/Google/Azure takes care of that" is not the answer, unless your comment is predicated on a world where compute can only be rented from big corps... and their methods of managing underlying infrastructure are sacred secrets for which we are to unworthy to comprehend.
Nice work! How are things working so far on iPads?

- "Create a room" should be actionable on the sidebar

- Don't know how niche this is these days, but I would love to see Freeze Tag supported in Arena: https://openarena.fandom.com/wiki/ModCompat/Ultra_Freeze
What percentage of bio defense funding will end up going into the bio-equivalent of pen testing and red teams ...? At some point some loon in power will chant “The best biodefense is a good biooffense” ...
There was a period not too long ago where half of my friends were in the landscaping business. Volunteer work tends to introduce you to very different demographics.

That is a lot of 20- and 30-somethings who are not at all enthused about technology, informatics in particular. Which pretty much killed my enthusiasm for a side project I had in mind.
What's wrong with (intermittent) fasting? Of course if you don't raise your blood sugar as much by changing the diet, your HbA1c goes down by definition.

However, limiting your feeding window will naturally reduce the amount of time you spend with elevated blood sugar, without any calorie reduction. Again, that'll lower your HbA1c by definition.

Calorie reduction on the other hand can slow down metabolism
and cause a yoyo-effect[1].

The real issue is insulin resistance. Even if your blood sugar is "normal", it may take more insulin to achieve those levels. Elevated insulin levels are harmful by themselves. Also, if you go back to your old diet, you will still be insulin resistant.

Intermittent fasting can reduce visceral fat particularly in the liver and improve insulin sensitivity[2].

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5639963/

[2] https://www.health.harvard.edu/blog/intermittent-fasting-sur...
And also, searching the top speed of a B-2 at 628mph, if detected at 150 miles out only gives them 14 minutes. Which is both a lot, or a little. Depending on how prepared for action someone is.
Look at chart 7 of Pueyos article. He uses this chart to underpin his argument that the lockdown in Wuhan is the way to approach controlling the virus. But note, on that chart it shows that testing only became available to the Chinese authorities 9 days before the lockdown. In all other outbreaks (even the US one) there has been widespread testing - it's just not reasonable to make inferences from that situation to any of the others.

Pueyo doesn't understand the data, worse he has made no effort to understand the data (like actually reading the chart for a start). He's just a lad messing round with numbers.
"Herd immunity is not part of our action plan, but is a natural by-product of an epidemic" - spokesperson for Department of Health and Social Care

https://www.bbc.co.uk/news/science-environment-51892402
Personally, I'm 30, have no contact with folks over 65, have no co-morbid conditions and so I have no reason to keep away from folks. I'm at zero risk. In fact if I get it now and develop an immunity, all the better. I have to assume the same is true of the folks at the pub -- otherwise it's them who are being irresponsible, not me.
I tried to install Gambas with info above, and seems it did not start on Win10.

I also think that on Windows Cygwin is required.

Following is from bottom of page http://gambaswiki.org/wiki/doc/faq?nh&l=en#t12

"Will you port Gambas to Windows™ ?

I won't, but I will help any people trying to do that.

Gambas already runs under Cygwin. Note that there is a lot of things to port, if you want to do a native port: process management, gb.qt4 component, and so on... This is a huge job. The most promising compiler target would be Mingw-w64, which also allows cross compilation on a unix-like system."

If you use Gambas for making web apps, then you could use webbrowser to access those apps. Gambas IDE has wizard for web app, and some components that can be dragged to form. From some forum discussions I have read that debugging those web apps is easier then debugging php apps.
You don't necessarily need the aircraft to emit any signals, you may be able to detect changes in the background RF emissions reflected or distorted by the aircraft. It would have to be enormously CPU expensive but if you can correlate changes in tens or hundreds of frequencies, I can imagine it could be done.
We have no long term effect data on Covid-19 so it’s absolutely insane to do anything but minimize infection rates.
> Motorbikes are the worst offender here.

Here too, except in winter. I'm out in the country, in the northeastern US, in hilly country. Late at night, with the windows open, I can hear bikes for maybe 5-10 km. I can even tell which roads they're on.

Edit: In the winter, there are the snowmobiles, but our windows are closed.
A possible explanation is that their testing can't keep up with the spread. ~13,000 test per day for the last several days, with more positive results yesterday for the same number of tests.
MMh. is the netherlands then doing the same thing ?
Genuinely curious about where you read that the UK has no energy security? It's not something I've read about before, but is something I'm pretty invested in as a UK citizen.

The one source I could find was https://www.globalenergyinstitute.org/energy-security-risk-i... which placed the UK in the top 3 countries for energy security (many years running).

Do let me know if you have some data that would change my mind! (and ditto for food security)
Wuhan disagrees with your argument much more than it supports it. The Chinese response in Wuhan -- after the failure of the initial attempts to suppress any news of the virus -- were swift, draconian, and competent. They locked everything down, heavily restricted travel, erected 16 temporary hospitals (just for that region alone), and pumped a ton of medical supplies in to it.

So the argument that follows from that is, "these are the measures required to achieve fewer than 3200 deaths."
Singapore has had a handful of cases of children getting it. A six-month old caught it and took nearly three weeks to recover:

https://co.vid19.sg/cases/singapore-case-28-6-month-old-male...

A 5 year-old was in hospital for six days, but has been discharged today:

https://co.vid19.sg/cases/singapore-case-160-5-year-old-male...

A 17-year old evacuated from Wuhan tested positive, but never showed any symptoms during the 3 weeks he was quarantined despite having the virus:

https://co.vid19.sg/cases/singapore-case-23-17-year-old-male...

(There's more cases that can be explored on the Singaporean website.)
Recent versions of CMake have also been growing the support for CUDA. There's still a number of edge cases (e.g. passing arguments to the device linker) that have open tickets on their bugtracker, but there's more than enough stable functionality now for CUDA projects and generally a number of relevant improvements with each new release.

We started using it about 6 months ago for a cross platform CUDA project, and have found it to be a big improvement over how we previously managed similar CUDA projects (e.g. manually). I'm especially a fan of it's ability to download external CMake project dependencies. As others have mentioned, some of the documentation is a little unclear for particular edge cases though so it takes some familiarisation.
> millions of people flow into and out of London each week so it would be completely pointless and ineffective

Was curious about this point in particular - checked the numbers, and Heathrow has essentially equivalent traffic as Hong Kong International.
What's the mission and purpose of the B-2 these days? It's a penetrating strategic bomber. The justification for it was that it could strike mobile Soviet ICBM launchers. It was never going to be any good for that. What's it for now? Has it ever been used against a sophisticated enemy (i.e. not people who are literally living in caves)?
How do you assemble false positive false negative statistics for a new diagnostic in the presence of exponential growth ...?

Is this actually possible to do — my instincts say that any exponentially transmitting contagion will make it impossible to assess such stats with any confidence for quite some time ...
Sometimes they do - e.g. if you replace a file in the ISO that is the same size up to block alignment, which is common when e.g. editing a text file or recompiling an executable with a minor change. They almost always do when it's a VM image representing a disk - only some blocks change every write.

However, with self synchronizing hashes of the kind used by rsync bup and borg, it doesn't matter - you could have a 1TB file, delete a single byte at position 100 - and you only need to store or transfer one new block (with average size 8KB for rsync, configurable for borg) if you already have a copy of the version before the change.

It's somewhat comparable with diff/patch but not exactly; it's worse in that change granularity is only specified on average; It's better in that it works well on binary files, does not require a specific reference diff (can reference all previous history), and efficiently supports reordering as well small changes - if you divide a 4000 line text file to four 1000-line sections and reorder them 1,2,3,4 -> 3,1,4,2 you will find the diff/patch to be as long as a new copy, whereas a self synchronizing hash decomposition will hardly take any space for the reordered file given the original.
Yup.

The best case scenario is that restrictions are introduced, and they work so well that people complain that they were unnecessary.

And remember folks, when it comes to exponential growth, the best time to act was yesterday.
And they have. https://teens.drugabuse.gov/blog/post/teens-drug-use-lower-e...
No reputable news outlets are reporting a vaccine breakthrough by the 'Galilee Research Institute'.

Serious estimates are that it will take around 18 months [0]

[0] https://www.bbc.co.uk/news/business-51454859
For more info about Gambas, you can watch Gambas interview at Floss Weekly:

https://twit.tv/shows/floss-weekly/episodes/353
I think you kinda missed the part where the UK is trying very hard to infect the majority of the population and China is trying very hard to stop more infections from taking place. Successfully it seems.

> So no, there won't be "millions of deaths" or anything close to that

I showed you some simple arithmetic, based on official figures from the UK government. Can you come up with better numbers or point out an obvious flaw in my calculation?
The models (`deepspeech-0.6.1-models.tar.gz`) weigh 1.14 gb, if anyone's interested.
"How bad it is depends almost entirely upon the person, or at a higher level, the demographics of the people who are infected."

There are other important factors to consider.

There will be a percentage of infected individuals who otherwise would have survived had they had access to respiratory assistance by trained medical staff at a hospital.

But as medical staff get overwhelmed, get sick, or die, as free room in Intensive Care Units is used up, as respiratory assistance technology becomes unavailable because it's busy supporting other patients, the death rate will rise beyond what looking at the demographic data alone might lead one to believe.

In addition, there are likely to be extra deaths from other, completely unrelated diseases and conditions for which people can no longer get treatment as hospitals and medical staff get overwhelmed, and as we run in to medicine and medical equipment shortages from lack of supply in China (and, I expect before long, from India and other countries on which the US medical system relies).

To make matters worse, the people sick with COVID-19 will likely infect a lot of vulnerable patients in the hospitals they go to, as most hospitals just simply aren't equipped to effectively contain such infections, especially when there are so many of them. This will increase the death toll even further.

There are many group living facilities such as prisons and nursing homes which will likely be affected by this as well. They will be especially vulnerable because the people there tend to already not be in the healthiest shape and have weakened immune systems.
>One need only look at WWI unarmed charges from trenches.

when did that happen?
Hey, come on, I'm doing everything I can
You might be interested in this — an example where the company logo is the domain name, and vice versa:

https://xn--bj8a.com (ꑮ.com)

(Safari on macOS and iOS displays the symbol in the address bar.)
Which is something I explicitly pointed out. Shit like this isn't going to fly even in the UK, let alone in the US, so they seem to be acknowledging this simple fact and thinking of what they realistically can do in the absence of such "draconian" lockdown abilities. Which I think is smart. Especially if you consider that _any_ lockdown can't last for very long for economic reasons. A month or two at most, after which you start over. Lather, rinse, repeat, until you build up herd immunity.
> That said, they are "easy" to jam in the sense that when you have two radio signals on the same frequency,

Not at all. Check out the VLBI technique from radio astronomy, it's not hard to tell that there are two discrete signals.

But that's not really the point: you can see stealth aircraft already with lower frequency radars, just not well enough to shoot them down. It's hard to imagine this passive technique being good enough to shoot them down, either.

https://en.wikipedia.org/wiki/Stealth_technology#Low-frequen...
Now you have me wondering if I've had undiagnosed pneumonia in the past...
They are neither; they are making difficult decisions on the basis of limited information across multiple disciplines. The main aim is to prevent the NHS from being overwhelmed, which would be a humanitarian disaster. A secondary aim is to prevent bringing economic life to an end in the UK, which would also be a humanitarian disaster.

We are at most about five months into this pandemic; to suggest we know what strategies succeeded and failed is very premature. We are just at the beginning.

In another world, we could all spend 2020 in individual seclusion, without any economic, social, familial, cultural, mental, or behavioral concerns. In the world that actually exists, "No man is an island,
entire of itself" and so rather annoyingly we must continue to live our lives without being completely governed by epidemiological concerns. SARS-CoV-2 can be transmitted asymptomatically and is basically everywhere at this point, so if your entire strategy is just "don't let anyone get infected, ever", it is surely doomed?

One country did get a legitimate chance to end COVID-19 for all humanity by preventing onward transmission, and they blew it. The next off ramp is global herd immunity (either natural or artificial), which lies years or decades in the future.

It's worth pointing out that the UK already pursues a strategy of herd immunity regarding chicken pox (along with other countries), despite the availability of a vaccine: http://www.ox.ac.uk/research/everything-you-need-know-about-... I disagree with that strategy but I am not qualified to make that decision on behalf of a country, and I'm glad it's not my responsibility to do so.
And from that liquid water is an essential part to all known life on earth. The temperature range needs to be similar to that of Earth for water to exist on the surface.