skysight-inc/HackerNews huggingface dataset:
Cool idea! I am fascinated that this is growing. I wouldn't have guessed so in the first place.

Is there interaction happening between the participants?

> every time we do it we know fewer of the people who show up.

This sounds like the retention rate is low, or is this a wrong conclusion?

Also I would be interested to learn for whom this is fun, and why.
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Why rewrite a system that's working? This is why. You can't just coast on the amazing system someone built in the 1970s. Because in a crisis, no one is left who knows how to scale it up. Most of the devs from the 1970s have retired. Make jokes about NodeJS or Rails if you want, but right now NJ and NY could find a ton of Node devs.
It blows my mind how many layers there are between us and the actual chip physics (the gates and other transistors). There's like 20 hardware layers of abstraction and another 20 software layers, probably, maybe more!
I'm reading the 'Model Thinker'. That's a great course.
https://en.wikipedia.org/wiki/United_States_v._Microsoft_Cor....

https://www.theverge.com/interface/2020/4/1/21201162/amazon-...

https://www.cbsnews.com/news/inside-an-amazon-warehouse-trea...

"The only way that I can see to deploy this much financial resource is by converting my Amazon winnings into space travel. That is basically it." - Bezos

Gates's philanthropy is fine, but my comment was on his business dealings. He has a long history of anti-competitive behavior, completely void of morals.
A disconnect that one can divine for oneself by listening to Fauci talk anytime Trump is not in the room.

Birx, too. The difference in messaging and information content when she's on that podium or on Fox programming, versus when she's on normal-people programming, is stark.

They're being leaned on and it is starkly apparent when you're not coming in with priors that tend towards conspiracy.
HCL Leap. Drag and drop web development but can still add HTML/css/javascript as needed.
HCL Leap. Drag and drop web development but can still add HTML/css/javascript as needed to extend functionality
As a beginner, I really like Justin Guitar (https://www.justinguitar.com/site-map-and-lesson-structure). But I'd love to know what other great resources are out there!
Ask HN: Do you have Covid-19?
I'm just curious to hear from people who have been confirmed to have Covid-19, and what is has been like for you personally (e.g. your symptoms, family, etc.)
Learning how to do darkroom printing.
True about everything, including relativity. Can't have the argument without assuming it.

The fact is, the universe operates consistent with Relativity.
Yes but that's not very helpful for a healthy 60 year old.
I'm sure you're suffering in your world over there and I hope you're okay.
People over 80 already have roughly 8% chance of dying in a year anyway from other causes.

Source: https://www.bbc.co.uk/news/health-51979654
https://ichef.bbci.co.uk/news/624/cpsprodpb/E96A/production/...
Trickle down housing doesn't work, at least at the stage of the problem we are at. Building expensive housing sometime frees up a "cheaper" unit but if the cheaper unit is unaffordable to most people, as is the case in most places that have seen massive inflation in rent costs, that doesn't do most people any good.

While luxury condos don't "make" homeless people homeless; they're just a graphic depiction of how flagrantly housing prioritizes profit over the actual use value of housing people. And they could make homeless people not homeless if we had a sane system.

As for support for homeless people, I agree that it's tricky and we shouldn't just shove them somewhere, but it's not insurmountable EXCEPT when systems for supporting people are systematically defunded and people are kept without the support/job/community they need. And that's the case everywhere. It seems much harder than it is because it's impossible to solve within unrestrained capitalism, which is the natural state capitalism slides towards all the time.

As one final point, it isn't inefficient in any real sense to have people live in cities. In fact, with reasonable infrastructure (admittedly nonexistent in the US), it is much more efficient in terms of any real resources for people to live densely, especially if they need support. The only way in which it is inefficient is that landlords and profiteers siphon wealth away and drive costs up to the sky. This is a solvable problem but it is a problem of capitalist market anarchy, just like cities busing their homeless away.
TLA+ and Alloy.
If that’s the most perverse you’ve seen, I guess you haven’t seen Duff’s device, which mixes it with a do…while loop (code copied from http://www.catb.org/~esr/jargon/html/D/Duffs-device.html):

register n = (count + 7) / 8; /* count > 0 assumed */

switch (count % 8)
{
case 0: do { *to = *from++;
case 7: *to = *from++;
case 6: *to = *from++;
case 5: *to = *from++;
case 4: *to = *from++;
case 3: *to = *from++;
case 2: *to = *from++;
case 1: *to = *from++;
} while (--n > 0);
}
Yeah, you're right. The word translated as 'stone' also can mean 'hard object, metal, rock', and refers here to plastic object - so the 3d printer is somehow a "hard-object device". Doesn't make much sense without the link to a video to provide context! (Welcome to Toki Pona, where often things make no sense out-of-context... ).
This is awesome! I'll learn toki pona just to build and use my own :)
Thoughts about the handling of PEPP-PT proximity history IDs
Galaxy brain: We made taxes up too. Surely if both companies and taxes exist only in the fiction world then companies can be taxed?
another scam. flagged. please remove
Tiger at US zoo tests positive for coronavirus
Go + graphsql: we have build https://iban.im and open-sourced https://github.com/monocash/iban.im
Wow I want to do that too! Are there any existing godot based quest games so I can get an idea what the final product would look like?
Lots of things pretty much require dynamic config. Nontrivial docker compose files, Dockerfiles (if you want a static include mechanism, for example), Kubernetes configs, CloudFormation templates, Terraform templates, etc. They need to be dynamic and most of those technologies have one or more popular and hacky solutions for introducing that dynamism (helm charts use ninja templates, CloudFormation adds an AST son too of YAML and drives users toward insane macro lambda functions, terraform keeps extending its “config” language, etc). I’m fine with those platforms preferring a static view of the world so long as there is a sane way to generate the configs dynamically. I would actually prefer a strictly static interface a la Kubernetes config YAML and other targets can generate the corresponding kubernetes configs. The best time I’ve had has actually been using Python to generate this YAML. I even use type hints so I can statically type check my configs, which isn’t something I can do with vanilla YAML (barring some grotesque jsonschema-esque monstrosity).
Poll: Do you have, or have you had Covid19?
What proportion of HN readers have had Covid19
Yes - I’m fairly sure, but not been tested yet
It's almost impossible to happen, there are three circuit breakers, 7, 13, and 20%. After 20% the market closes for the rest of the day. I think it's only possible if the 20-33% drop happens at the very end of trading where the circuit breaker no longer can occur for the day.
Great book (I own past edition). Is the content significantly refocusing on distributed systems? At first, it looked like a new book, but I think he updated the title (and the content)
If the results are so good it would be impressive. But it will be necessary to take a look at the data. Dollar to doughnuts they have a horrible methodological mistake, like a bad classification of the patients, or using a weird definition of cure [1], or cherrypicking the patients that get cured.

[1] We have a big announcement of a miracle cure in Argentina in 1986. It was crotoxina [links bellow] that is a part of the venom of some snakes. One of the problems was that they were comparing CT from different angles and finding fake reductions in the size of the tumors. (Other parts of the study were just frauds.)

https://translate.google.com/translate?sl=auto&tl=en&u=https...

https://translate.google.com/translate?hl=&sl=es&tl=en&u=htt...

https://translate.google.com/translate?hl=&sl=es&tl=en&u=htt...
Yes - I’ve tested positive
> If there is one less to be learned from this whole Covid-19 debacle (and I'm sure there are several), it is that our entire news ecosystem, public and private, is fundamentally structured wrong for doing what is supposed to be its purpose, which is to make people better informed.

No. What is wrong is that people believe the news industry exists to make people better informed. That is an industry PR lie such as "Do no evil", "Fair and Balanced", "Serve and Protect", etc. The truth is that newspapers have always lied because they were created to lie.

"Nothing can now be believed which is seen in a newspaper. Truth itself becomes suspicious by being put into that polluted vehicle."

"I will add, that the man who never looks into a newspaper is better informed than he who reads them; inasmuch as he who knows nothing is nearer to truth than he whose mind is filled with falsehoods and errors." -- Thomas Jefferson

The NY Post was created by Alexander Hamilton solely to attack his political opponents. The lies hamilton printed in the ny post about aaron burr is one of the reasons why he got killed in the duel.

Your frustration stems from a false premise : News industry exists to keep you informed.

Instead of banging your head trying to make your conclusions fit a false premise, why not do away with a false premise?

All men are good. Harvey Weinstein is a man. Therefore, Harvey Weinstein is good.

Would you waste your life trying to find ways to show Weinstein is good? Of course not. You'd work your way through your logic and conclude your premise was wrong and that all men are not good.
Re-read it using the royal 'we'.
I'm working through Aluffi's Algebra: Chapter Zero, which covers abstract algebra (groups, fields, vector spaces, etc.) with category theoretic foundations. I took undergraduate algebra several years ago, and I'm really interested in category theory from a compositionality perspective, so this is a good opportunity to brush up on both topics.

Aluffi is really well-written. It assumes some degree of mathematical maturity (so it's well-positioned for a second pass of the material), but has a generally conversational tone without being imprecise. The exercises are excellent, too, if occasionally difficult using only the machinery introduced up to that point. (Again, well-suited to readers taking a second pass at algebra.)

Why am I doing this? Leonard Susskind puts it well in this video [1]. To put it in my own words: our senses evolved for the physical world around us, and some of the most technical activities we do today are wildly underserved by our natural senses. That's why we build things like microscopes and telescopes and whatnot -- to extend our senses into new domains. Mathematical intuition is almost another sense in its own right: you gain the ability to perceive abstractions and relationships in ways that are just not well-described by sight or touch. I both enjoy this sense and find it valuable, so of course I'm going to continue honing it :)

[1] https://www.youtube.com/watch?v=2bgZmBAnhdg
1. Do you use it as your primary phone or as a supplement to another phone?

2. What do you typically use it for? What apps do you use?

3. What's the battery life like?

4. Do you use the distraction-free features (i.e "life mode") and do you find it effective for reducing unnecessary phone usage.

5. How do you find the keyboard size?

Thanks!
I know you say it was difficult to build and you won’t do it again, but you should consider selling these and sharing the joy with other people who wants to enjoy this language.
Chinese researchers have applied for a patent on Remdesivir
Post author here.

One of the nice advantages we had in using our static analysis tool for this, with real code intelligence, instead of a simpler linter, was that we could do a much more clever check. The actual rule was "every case must be terminal", and we had a rich analysis for "terminal", so stuff like this would be considered legal:

case blah:
if (cond) {
throw blah;
}
if (cond2) {
some_noreturn_function();
} else {
return 42;
}

etc etc. My example is a bit contrived, and the wisdom of doing such complicated things in switch/case is questionable, but it was useful when dealing with an existing codebase.

Another advantage was that our tool was designed for extremely fast analysis over the entire codebase, so errors were given to programmers as they were writing code, immediately. (200ms response time to any change. At that level you can run it on every keystroke, which we did.) Traditional linters can in principle do this, but in practise are often not written with this sort of performance requirements in mind.

(And yes, PHP allowing arbitrary expressions in case labels was... probably not a good idea.)
I use to hate the idea of studying leetCode and I still refuse to do it. But then I realized how hypocritical I was being considering all of the time I’ve spent “grinding architecture and infrastructure”, reading white papers and studying videos on TOGAF so I could talk the talk on an “Enterprise Architect” or a “Digital Transformation Consultant”. But if I have to play a game to get the next salary upgrade after I top out as an IC in my local market (not the West Coast), that’s what I had to do. Who knows? I might end up working in consulting at AWS or Azure.

But now, with the entire world economy screwed up, I don’t think now is the right time to make that kind of move. I’ll stick with being just a regular old Enterprise Developer/Architect/Team Lead/Single Responsible Individual depending on how the wind blows focusing on healthcare.
haha yeah and I always wonder why especially engineers are so creative in using Excel as a graphics/painting tool :) Looks good, but a nightmare to read in a programmatic way ^^
I was inspired by this post to set up a HN poll, someone who knows how polls work may do a better one.
I'm doing Harvard's CS50 (2020) and working through Steven Cochan's Programming in C (4th edition) alongside it. Coming from a JavaScript / front-end background learning about pointers and manual memory management is eye-opening.
Other businesses on the way out:

- Major League Baseball. The average age of a baseball viewer is 57, up from 52 in 2006. Just 7% of baseball’s audience is below age 18. The 2020 summer season will almost certainly be cancelled due to the epidemic. The 2021 season may be cancelled due to lack of interest. Once people get out of the habit, it's hard to get interest going again. Horse racing aged out that way. Who goes to a horse track any more?

- It's going to be amusing if NFL football gets replaced this fall by Madden NFL 20. Could happen. Simulated football, played by the real coaches, with Pixar-quality rendering, on national TV? Basketball, with smaller teams, might carry on; everyone gets tested before the game, and there's no audience. "Audience insertion" in video coverage of sports could become a thing. It's often been done in movies, after all.

- Boeing? Will any 737 Max ever need to fly again? People willbe moving around less in large vehicles for several years.

- Cruise lines? Forget it for a few years.

On the way up:

- Biodefense, of course. Nobody ever shut down the whole world before. This was an accident. Somebody might do it on purpose. It's too easy to scale. That DARPA program to generate antibodies for a new virus will be a big deal. Vaccine R&D and manufacturing will be way up, with plenty of funding from many governments. Watch the anti-terrorism lobby pivot to biodefense.

- Anything associated with working from home, of course.

- Delivery. But expect the "gig economy" to be made more like regular employment. Expect the quality of delivery to improve. The delivery industry needs to keep the cold stuff cold and the hot stuff hot. Only Safeway and pizza delivery try to do that now.
On the privacy-conscientious use of mobile phone data (2018)
Ennnnnnhh... I disagree. I've spent a lot of time with Django and it's configuration files are just vanilla Python. It's really great. I especially like being able to add just a little bit of logic here and there.
Tanmai is on email 24/7, you've honestly got a better chance of reaching him there than on Discord:

tanmaig@hasura.io

I just use Discord because it's immediate feedback.
From "Recontextualizing Ambient Music in Csound" by Kim Cascone, on the CSound Community web site:

http://csounds.com/

http://csounds.com/cascone/

"One of the motives for being an artist is to recreate a condition where you're actually out of your depth, where you're uncertain, no longer controlling yourself, yet you're generating something, like surfing as opposed to digging a tunnel. Tunnel-digging activity is necessary, but what artists like, if they still like what they're doing, is the surfing" — Brian Eno
(Aurora Musicalis. ArtForum Magazine. 24:10. 1986)
Borg Control Language, as others have said, Google's configuration language for "Borg", the precursor of Kubernetes. Both Jsonnet and Cue are descendants of BCL, developed by people who were previously involved in BCL development.
Jsonnet is a direct descendant of BCL, "BCL done right". Cue is an indirect descendant of BCL, you might say "BCL rethought".
> I would also say debugging is the punishment for your mistakes,and oh boy it can be extremely punishing.

Well…not always. I actually like debugging, especially when the bug isn’t mine and I’m not in too much of a rush. Diving into a completely new codebase, trying to make sense of the behavior and come up with ways to infer things through the lens the tooling gives you, and finally zeroing in on the problematic code and sending a patch can be quite satisfying. It’s even better when you learn something new and have a good war story to tell about it. (The message was being forwarded through what?! You can do that?!)
One angle that this article missed: anti-price gouging sentiment has a lot to do with why the factory isn’t running 24/7. Imagine if he could charge 10x his normal price (ie $1/mask, which is much less than the value a mask provides.) I suspect plenty of employees would happily work 100 hour weeks for the duration of the crisis if they were getting paid $150/hr. Instead, he’s forced to take a slower, more conservative approach to ramping up to avoid risking bankruptcy.
That could be the work of a Lisp coder rebelling against having cond taken away, and having to fend with if/else/elif.
Do they have experience building a company?

They aren't out right rejected, the bar is higher because there is only one of you to do all the things. You have to show that you can hire and delegate and make positive progress.
Half the point of markdown is that it is readable and understandable both in it's plain text form and it's HTML form though.
Then you should be using X11 directly!
"right" has some connotation too
This was very helpful. Thanks for sharing.
I am glad that at least one person recognized my attempt at humor.

The cheap-skate's antenna modelling package is NEC2, which is public domain. It is a Method-of-Moment solver, not FDTD which is much more useful at microwaves. But for UHF and below, NEC2 is great as long as you know how to dodge the (reasonably well understood) deficiencies. The downside is that it is from the age of FORTRAN, so the native interface is column-sensitive punch card images. People have done free or low-cost wrappers, though, to take the misery out of it.

NEC4 fixes a number of the model bugs in NEC2, but the last I heard NEC4 fell under ITAR, so requires a license.

I don't know of a freebie FDTD EM package, though.
A switch is a kind of computed goto. It's a fantastically useful construct when you need it. You don't usually need it. I'm not sure what mini-syntax you're referring to, the syntax is roughly what I would have guessed it would look in C if I hadn't seen it and you just told me its semantics.

Most people treat switch as a peculiar form of match (or cond or whatever), probably because this would usually be much more useful to have than a computed goto, and in many derivative languages they've put in weird additions that seem to be an attempt to drag it halfway to that, things that don't really make any sense in C, like allowing dynamic expressions in the cases (such as your example), or forcing all cases to be at the top level.

(I feel like I write a lot of "in defense of switch" comments on HN...)
Yeah this piece was a huge piece of inspiration for me when I was learning Csound. I actually had a chance to ask BT about this particular piece once and if the rumors were true about it being all done in Csound. The guitar riff you hear halfway through the piece is actually sampled and played via the diskin opcode. Other than that, all Csound. Still a very impressive feat, especially considering the fact that the piece itself was originally mixed in 5.1.
A good portion of org-mode's benefits come from the way it is integrated into various Emacs features, up to and including the fact that Emacs is completely reprogrammable. You can certainly replicate some aspects of that outside Emacs (and obviously people have done so), but in order to fully replicate that elsewhere, you'd more or less need to reimplement Emacs, or something on a similar scale.

I think you also have the problem that Emacs' org-mode is effectively the de facto standard with no formal spec, and so every other implementation implements its own preferred subset of that "standard" based on what the author(s) found important.

(Edit: I could be wrong about more recent non-emacs org-mode implementations. I haven't done a thorough survey recently.)
But I think there is something there. I use org-mode, but even though it is "just" text files, there is no specification to implement against, all the cool stuff Emacs can do with org-mode files.
I don’t think I’ve got the hang of doing a HN poll
> First, only if you could contain it or a vaccine becomes available, would you be actually mitigating it, else you're just shifting around a set amount of deaths over a larger timespan.

This is incorrect. You're reducing the number of deaths. Think of it like this: imagine 2% of people need ICU care. 100% of those that don't get ICU care die. 100% of those that do get ICU care live. ICU care takes a week. You can have everyone need ICU care all at once: everyone beyond the number of ICU beds will die, so 2% of the population dies. Or you can spread it out so that the number of people needing care at once is below the number of ICU beds, and no one dies.

And since your second point depends on your (flawed) first, it's invalid too.
>implying this is quite a bit worse than stated.

Well he isn't exactly 25 y/o