skysight-inc/HackerNews huggingface dataset:
The funny thing about ends of the world is they're all so politically correct. What if an apocalypse is caused by something we're taught to believe is good? Some examples:

Maybe social welfare and international aid are selectively breeding a race of humans who are unable to sustain their own lives without support of the superior but relatively shrinking productive class?

What if repeated famines were the cause of the high intelligence we have today? We stopped famines. Maybe the pressure to outsmart each other has gone too.

What if Islam continues to spread? It's a kind of mind-virus filled with techniques to keep its hosts infected (don't ask difficult questions about God, kill people who stop believing, etc.) and to spread (kill or tax people who don't believe, and when you might have killed someone in war, allow them to live if they convert to Islam). Everyone being infected might be OK if it was benign, but it's also anti-science (Predicting future outcomes is usurping the power of God who's the one who decides what will happen). This is perhaps what already happened due to Christianity in the dark ages. Took 1000 years to recover from that end of the world.

Maybe modern medicine is breeding a race of unhealthy people who depend on it for survival. Maybe we're in an arms race of humans needing ever-better medicine and medicine having to treat ever-more difficult diseases.

How can you defend against a politically incorrect end of the world? The obvious direct course of action is forbidden, which means even mentioning the possibility of those being problems is forbidden socially, which means it might blindside us. We might even welcome it coming. I can imagine future degraded people laughing at their silly ancestors wanting technology and healthcare instead of fighting enemies with their fists like a natural real man. They might ostracize tinkerers who try to build useful things instead of participating in the tribal rituals and fighting.
Getting stuck on trying to achieve a certain result and changing the rules to get there is usually a sign of a bad program that is not flexible and brittle.

Sounds like there is more of a problem with how the army is asking verse what they expect. If they were more direct in what they wanted vs measuring some scenerio they created.
Well that sucks - so the Theranos of Purifiers, then?
Europeans decided that gdpr is a must. So their desires should be listened to. If the site isn't up to snuff, Europeans should be blocked until their wishes can be granted.
Email Top Companies Executives
Headphones are now essential equipment for me when traveling on airplanes and trains. After many years of suffering from the insane amount of background noise in commercial aircraft cabins, my over-the-ear, noise-cancelling headphones have made air travel bearable and even pleasant.
Roll20 even for what is presumably the best-supported game (DND 5e) has completely unuably broken UI. Something as simple as equipping a piece of armour is an excersise in trying 5 different things, let alone trying to wrangle magical items into the system or get the hp bar to be accruate which almost never works. It takes far longer to teach somebody to use the character sheet system than it does to teach them literally all of the rules of DND, and even then it consistently finds new ways to unexpectedly fuck up stats and bonuses at a rate of about 6 or 7 times per session. Overall, If I must run an online game, I just use pdf character sheets and just have players /roll d20s in chat and ignore all the roll20 functionality as its such a nightmare.

Overall, in trying to reduce the complexity of the game, they gave you a finnicky spreadsheet nightmare of half-baked solutions to problems no-one had.
The Talvivaara mine in Finland uses a novel bio based method to get nickel out of the ore but it has not been super successful so far. But it is in operation, after quite major problems. AFAIU the concentration is so low that traditional methods would not have been profitable.
As an Apple fanboy, I feel deeply conflicted to find Apple on the list and also Tim's approval & visit to one of the factories exploiting forced labor. I feel like a hypocrite, who supports human rights abuses through forced labour.

All the years I stubbornly rejected my friend's and colleague's criticism from the open source & linux community for being eccentric and making 'exaggerated' arguments, but now I am so deeply engrossed in the Apply ecosystem, that I fear a switch to some linux distribution would be unmanageable for me.

Ironically I feel like a slave of Apple myself. What could I do tho? Switch to some other brand and then find out, that they operate with the same unethical behaviour!? I'm just deeply conflicted.
It is indeed quite frustrating. I can print from my phone without installing any app and it's awesome, but I wish I could do the same with sharing photos/videos on TVs.
> After a short purification, farmers could hold in their hands roughly 500 pounds of nickel citrate

How many rounds of this can you do before you've stripped so much nickel from the ground these trees won't grow?
Srrong echo, my 2019 was full of good work that wasn't valued, despite email chains and postings. It's frustrating and detrimental to ones career to have a bsd manager.
When in university, I took part in a CUBEsat effort.

I brought the mechanical assembly -no electronics, just the aluminium structure- of our satellite to CalPoly for a CUBEsat workshop; on the way back to Europe I found out the hard way that anything which goes into space is considered munitions as far as the US DoD is concerned.

Took a while longer than expected to get on my flight...
And it fit in the overhead bin!?
The Kiev fraud factory stealing senior citizens’ savings
PostScript is a much more advanced and easier to program language than Forth. Just how you can use def in all its forms makes a lot of things easier. Hand written PostScript code is very easy to read.
Deno will have a more substantial standard library. https://github.com/denoland/deno_std
By 'other side' you mean....the CCP:
"CGTN is funded in whole or in part by the Chinese government."
Exactly, although I tend to find the third screen starts to push the limits of the convenience of having the real estate vs the inconvenience of having to turn my head too much.

Sometimes I just set up my terminal windows to take up have the screen of my main (code) screen and alt+tab to it, and then just clicking on the IDE to bring it back on top.

I go back and forth between using the 3rd and not depending on my mood.
Quick summary: when someone is making a right-turn, and the light has changed to yellow, they do not have sufficient time to finish their turn before the light turns red. Therefore, at lights with red-light cameras, many people who could not possibly stop in time are getting tickets. (The point is that the fact that cars turning have to slow down must be taken into account when calculating how long it takes to traverse the intersection. If you are going at close to the speed limit, you get through while yellow, but if you have slowed down because you plan to turn, and the yellow occurs too late for you to stop, you will be long enough in the intersection to get a ticket).

Mr Jarlstrom made many efforts to point this out to the Beaverton (OR) city council. Not only did the officials treat him with disdain, the state even fined him for practising engineering without a license. (Talk about shoot the messenger!)

However, it turns out he was right, and he has been vindicated in an article in the Journal of the Institute of Transportation Engineers.
considering the cost of ventilators I doubt that people in Wuhan were using them in any numbers likely to be noted, thus yes, oxygen masks and related devices most probably.
I watched part of Aubrey de Gray on Joe Rogan yesterday. He said that fasting (which is caloric restriction if not identical to it) has a smaller effect on lifespan for animals of greater mass:

Roughly

- worm: 5x longer lifespan by fasting

- mouse: 50% longer

- dog: 10% longer

- human: 1-2% longer

I'd be interested to hear support or refutations of this. It seems like something that should be pretty well studied by now.
Testing your tests – Mutation Testing
Hopefully this wakes people up to the fact that not only are universities not the hotbeds of leftism that they are made out to be, but they are in fact run by the same kinds of right wing plutocrats that run everything else.
Sorry I don't know much about the topic.

0. How can I find out if I have too high (?) ACE2, and what can I do about it? Are there symthoms at least?

1. What does modulating ACE means?
2. Do you mean shall everyone get those blood pressure meds? Or what is the relation now with these meds in terms of action? Does it mean people who need it must get it for sure?
3. Research what is needed to modulate ACE: can you please give a pointer.
You're describing some sort of type mismatch between two concepts I think, and I really don't understand it: and I feel like as someone who occasionally teaches these things I really would like to. Could you elaborate?

For my part, I do like to think of adjoining numbers onto an existing system, but that immediately becomes matrices.

So you decide to adjoin an ε such that ε² = 0. Your numbers are now vectors (a, b) and the action of ε is to map this to (b, 0) so that it is represented by the matrix

[ 0, 0 ]
[ 1, 0 ]

And thus the number a + b ε is perfectly encoded in the matrix algebra as a I + b ε =

[ a, 0 ]
[ b, a ]

This sort of trick is really helpful for programmers because we often have a field of bigints or rationals that we want to adjoin an irrational number to. So for example when you want to do Fibonaccis using exponentiation by squaring, it helps (although this is not obvious at first) to adjoin the golden ratio φ satisfying φ² = 1 + φ to your bigints, so that your numbers look like a + b φ =

[ a, b ]
[ b, a + b ]

Then F_n = [1, 0] . φ^(n+1) . [1, 0] and you can exponentiate by squaring straightforwardly. So you start from [0,1;1,1] and square that to [1,1;1,2] and square that to [2,3;3,5] and square that to [13,21;21,34] and square that to [610, 987; 987, 1597], so you get to skip ahead past 55, 89, 144, 233, and 377, at the cost that multiplications are slower than additions but also you potentially get to allocate less memory.

When you adjoin to the reals an i such that i² = -1 these matrices have the shape of the 2D scaled rotations, so that is what complex numbers just “are” to me. The representation as a tuple is to me the same as representing the above matrix as (a, b) or (a, b, a+b) to save time or space... The whole thing is a matrix but the entries are indeed redundant and so you don't need to store all of them at once.

So that's why I do not understand what you mean by these being separate concepts. Can you elaborate?
Very few multinational giants remain if you protest all these.
Carrier Landings – Straight Deck vs. Angled Deck
I feel like the Groupon example could have been solved with science, too; it doesn't require art.

You just have to analyze the data for the long term, not just the short term. If your unsubscribe rate increases, but purchase rate increases more to compensate, that makes sense for the short term but not the long term. Long term, churn is going to cost more and more, since it persists, and you will eventually run out of new subscribers to add. Retention matters more in the long term, and that is not 'art', it is science.
There wasn't a singular moment when it went wrong. It's been a long, steady decline. Hackers have gradually been marginalized and replaced by bureaucrats.

I've been reading Hackers: Heroes of the Computer Revolution [1] by Steven Levy. It's fascinating, but also heartbreaking, to see how things have gone, given that the hackers of the 60's and 70's were fighting against it even back then.

[1] https://en.wikipedia.org/wiki/Hackers%3A_Heroes_of_the_Compu...
Thank you for your comment. I think we're fully in agreement here. Maybe I didn't do a good job but that was the point I tried to make. It's precisely because in business, degrees of freedom are high, and it's a dynamic and complex environment where butterfly effects play a significant role. This means that trying to outthink the market will likely fail and you just have to try different things and iterate based on the feedback the marketplace provides.

I wrote this essay about that specifcally: https://www.younglingfeynman.com/essays/physicsenvy
Well you sure need a representative dataset to optimize your queries. Often, that means a replica of the production server, with real PII data in there.
Platypus: Create native Mac applications from command line scripts
Using taskset pinning my numbers improves:

$taskset --cpu-list 8 ./costofthread
avg: 11000~

$taskset --cpu-list 8,11 ./costofthread
avg: 33000~

$./costofthread
avg: 60000~
If both 1 * -1 = -1 and -1 * -1 = -1, then -1 / -1 has two solutions.
The Syntax of PDF
Can you name some? I am curious.
Not every arithmetic property needs to be proved from Peano axioms. One can but it is tedious and unnecessary. A much better starting point is the set of field axioms where the distributivity property is already available as an axiom.

The assumptions made in the article are perfectly fine as per field axioms. Granted it would have been nicer if distributivity over addition was used instead of distributivity over subtraction. But it is not a big leap to derive distributivity over substraction from field axioms by distributing multiplication over a positive number and the additive inverse of another positive number.

Wherever you see an assumption made about negative number, just mentally replace it with additive inverse of a positive number and you would be fine.
Article suggests he has 3 direct reports

More of a PM
How is this circular? Physics has the notion of an observer, which is inherent to all matter. This is just saying observer effects happen everywhere all the time and your skull is just concentrating it.
Reminds me of the classic "Wheel of Reincarnation" paper: "On the Design of Display Processors" http://cva.stanford.edu/classes/cs99s/papers/myer-sutherland...

(Good work getting traction on this kick! ;-)

I'm kind of dealing with something like this now myself. I have an implementation in Prolog of a Forth-like language called Joy and I want to make a GUI for it that might actually be used by normal people.

I could use e.g. SDL and draw everything myself and handle mouse events etc. (I have a crude demo in PyGame that does that.)

Or I could use some sort of widget toolkit (I've got a Tkinter demo too.)

Or I can use the browser and treat it like a smart display processor. There are editors and spreadsheets and libs and all kinds of stuff. The Prolog/Joy code can stay nice and high-level, with HTML and CSS as the "display language".

- - - -

Which brings me to my main point: How in the heck is this not more nailed down in 2020!?

I first wrote a DSL for GUI layout in the late 90's, I used Delphi was even earlier, and I known that's all late to the party: we could go back to The Mother of All Demos or even earlier.

The mouse and hi-res raster displays and GUIs are old but usage is nowhere near settled yet. Is that because the domain is really so intricate and challenging or are we just milling around and mistaking it for progress?

Whither React?

(By which I mean maybe functional reactive programming or better yet Kowalski's
Logic Production Systems (LPS http://lps.doc.ic.ac.uk/ ) might finally start to reduce the churn and nail things down.)

( https://en.wikipedia.org/wiki/Delphi_%28IDE%29 )
Even now we have a lot of maps, roads, electronics and much more already made.
Looks like they're basically throwing on-prem stuff under a bus now: All the certs are for Azure-related stuff.[0]

[0] - https://query.prod.cms.rt.microsoft.com/cms/api/am/binary/RE...
https://www.investopedia.com/terms/v/vulturecapitalist.asp
Sorry I don't know much about the topic.

How can I find out if I have too high (?) ACE2, and what can I do about it? Are there sympthoms at least?
Could you explain why that particular video makes you think about that? I mean, do you consider the creatures on the picture as having a consciousness? Those look far from being conscious to me, they are just small creatures with a couple of functions like moving, finding food and eating...
reached maintenance mode because it became feature complete
Actix web feature complete?
Is that a joke or pure ignorance?
Yes actix web is feature complete for building trivial web backends.
Anything beyond that, actix will limit you.
> this attracts a fundamentally different group of people - more average, more bitter.

I'd put it another way : it makes room for many people to participate in the social life by mean of work in the civil aviation.

So, from being a domain ruled by elite (of gifted or lucky or rich persons), it ends up a to be a domain of emancipation for big parts of society...
Yeah that's probably true provided they can get the unit economics to work, and there isn't anyone who does a better job of addressing their needs.
Its irritating how far we've gone away from standards. At least in the past there were efforts to push open solutions, but those seem to be steadily fading away.
Seems to me like working out you just naturally need more calories. So it's the same thing - you use more calories than you eat. Like how Michael Phelps are something ridiculous like 10,000 calories a day while training.
Ask HN: Subscriptions Worth Paying For
Thinking about paywalled links shared here:

What does HN subscribe to, what do you find worth paying for?

Also what would sources would you pay for even if they were free?

Currently I get the Washington Post with an Amazon Prime discount and just reactivated Apple News+ to get the WSJ

I’m not a news junkie but interested in some higher order thoughts and trends
Not really a counter-argument. The real counter-argument would be trains are not for private use, but cars are.
I only see simple biochemical machines in that video.

Here’s what they look like when you zoom in a bit more: https://m.youtube.com/watch?v=9RUHJhskW00&t=16

It’s literally chemical bonds breaking and forming, stochastically.
>It is highly unlikely that anyone will build this and attempt to treat a patient at home without reading anything

unless if they had read some stuff about what was required in treatment they decided making a ventilator was worthless, which is basically what people knowledgeable about treating patients are suggesting.
I somehow missed that this air filter exists, but taking an existing, boring product category (air filters, mattresses, razors, toothbrushes, edit: cigarettes), giving it a design makeover, and following through with marketing on social media and podcasts, seems to be a path straight to the wallets of millennials.
I'm interested to know where people use AVX-512. Off the top of my head, I can think of machine learning and crypto. Machine learning---that is, matrix/tensor stuff---seems more like a GPU workload. That leaves crypto, but most crypto (eg ChaCha or Keccak) only make use of 128 or 256-bit extensions (in fact, they seem to designed with this constraint in mind.)
io_uring vs epoll: echo server benchmarks
That would take literally months, or years. You don't need to do it for months at a time, just a few days/a week per month I believe
No way dude. I don't know how anyone can get shit done with less than 3 monitors without wasting so much time. Maybe if you live and breath and were born on laptops you don't understand what you are missing, but to me and many others, it feels like running a race with one leg chopped off. It's just frustrating.

Your comment just makes me angry. Really assholish.
A spelling error in their name was the first clue.
Just learned about Database Lab. Amazing! Thanks for sharing!
"Observer" notion from physics (does not matter if we are talking about neutonian or QM or whatever) have nothing to do with consciousness. "Observer" in physics is just a description of a certain point of view within the system. The connection of that to consciousness is usually done by popular quasi-philosophy books loosely based on physics and using some of the same terms, they do not come from the physics itself.
To build on this: I was able to implement AES and OCB mode by just reading papers without any code in them. I was, however, not able to implement GCM reliably even by translating a "simple" reference C implementation into scheme. Sure, it worked, but even after 2 rewrites it still did not produce the same output as the simple reference implementation for some edge cases.

All this was done on a just-for-fun basis, but it ended up just making me frustrated so I stopped trying.
> Can you imagine being at least a little hungry for 20 years

But think of how that discomfort will make time pass more slowly. It'll be like adding two years to your life!
I've read all of Gibson's books, but I found Agency hard to finish.

The book has two parallel story-lines, and very short chapters which makes it a very disjointed read.

The characters were also very flat. For the last quarter of the book, the main character's dialog is almost all short questions and other characters explaining things to her. e.g.

<paragraph explanation>
"why's that?"
<paragraph explanation>
"oh really?"
<paragraph explanation>
etc.
Except this is wrong, the "cars without license" actually need their own specific license to drive (unless you were born before 1988, so not a teenager).
Does modulation mean increasing or decreasing ACE2? I assume it decreases and its good, right?
That breaks the site guidelines. Please follow them when posting here.

https://news.ycombinator.com/newsguidelines.html
What China is doing is terrible but elephant in the room can't be ignored. Islamist around the world are responsible for causing a lot of human suffering. It is pattern which can't be ignored.

Look at what happened recently in Delhi.
Not sure if we are discussing different things: I absolutely think people should have a right to repair their things. I don’t think that means manufacturers should be required to make it easy. I don’t buy that Apple has deliberately made it difficult to repair. It seems to be pretty similar designs across many smartphones from multiple manufacturers. I don’t think it’s a conspiracy, I think it’s the design you end up with if you weigh all parameters (cost, durability, performance, thickness, battery capacity, repairability ..) and simply rank ease of repair last. It’s what customers want, I guess.

Apple should repair devices (including replacing batteries) for free within the warranty. When the warranty period has ended Apple should a) ensure people can get original parts if they want, so they can repair whereever they want and b) make sure that people can repair their devices in any way they want, forever, without it behaving worse than if Apple themselves repairs it.

Those are really independent of whether or not these replacements involve 4 screws and 3 steps (great) or 20 screws and 44 steps (bad). I don’t want to pay a penalty of even 1% performance weight, durability or cost to get the simpler repair, so long as it’s a $20 job, that’s all I’m saying.

99% of users of course wouldn’t repair the phone regardless of whether the procedure uses 4 tiny standard screws or 40 screws requiring standard tools. The former would just let their unofficial repair guy do it for $5 instead of $20. This is why I think it’s not a very important question.

There are a many other more important questions in the area, such as for example the stance on third party batteries, and whether it’s acceptable that some features are disabled when repairing (e.g touchID).
It depends on the use case, I guess. Miracast is good for quick sharing of content stored locally on your phone/laptop, whereas Chromecast is better suited to stream content that is hosted elsewhere, so it doesn't drain your battery.