skysight-inc/HackerNews huggingface dataset:
You could, depending on where you live :) (The Bay Area has at least one German butcher)
How else would they re-write all their "data science" code from python to go?
JPL Designed 3D Printable Covid-19-Respirators
I don't think it's ever been meant to listen to per se, more to dance to; hence why it used to be called dance music.

Which is funny because I find a lot of edm listenable outside of a dance context, especially hardcore.
Yes. And for routine security clearances, people I went to school with are certainly interviewed or at least scrutinized.
Do you have any concerns about your son’s social development? If so, how do you address these? Personally, I would be worried about accidentally isolating my kids and causing them to miss out on certain soft skills.
Our revenue is about $1m there. We are paying for everything upfront, wait for the sea freight to arrive, clear the custom, etc. Amazon also pays once every two weeks + keeps about two weeks of proceeds on hold on a rolling basis. That together with a spike in sales can easily crush if there are no fat cash reserves.
Learn You Some Go (Content in French)
Watch Captain Fantastic - one of my favorite movies.

What most kids really need: time, attention, and role models who instill the values mentioned above (intellectual curiosity, love of reading/learning, creativity, achievement.) Kids are pretty minimalist when it comes to money.
True, but look at all the things Uber has been getting into. While Silicon Valley start ups have been trying to be the “Uber of <whatever>”. Uber doesn’t seem to want to be Uber, at least not the potentially fair/unfair drive share program.

I think it’s been clear they have been looking to change models, maybe this lines up with that.
If social distancing guidelines are maintained, that is. Note the next line about recreational group sports which are my biggest issues with the parks right now. It would take 1 cop to tell everyone playing basketball and soccer to go home, although with the trongs of spectators on bleachers maybe a couple cops on horses would be better.
I know two people who took jobs at Banjo. Both of them quit within months because the place was so incredibly toxic. Second hand info, so take with a grain of salt:

The CEO tries to run the company like a personality cult. Everyone was expected to be available 24/7 to respond to his demands. He liked to demand things on Friday night, weekends, or holidays to test people's loyalty. My friend was told he had to schedule his weekend activities with the company because everyone was on call all the time (he wasn't devops).People who didn't drink the kool-aid were filtered out quickly.

Banjo is also extremely aggressive with NDAs and threatening legal action against employees who speak out. Their Glassdoor page has been flooded with extremely dubious glowing reviews and I've watched many of the negative reviews slowly disappear over time for some reason.

The CEO recruited both of my friends with some grandiose stories, including the same story about being close friends with Zuckerberg. I don't know if he's actually close to Zuckerberg, but the Banjo CEO has been telling many people in Utah that he and Mark Zuckerberg are close friends, at least as a recruiting hook.

Banjo was already unpopular in Utah because they were awarded some very questionable state surveillance contracts. The state of Utah has already paused the contracts. As a Utah resident, I really hope this is the end of Banjo's involvement with Utah's surveillance.
We Need Bees, Bees need us
> I believe in second chances but this kind of history should disqualify you from at least some types of sensitive roles.

What exactly do you think a second chance is?
The president just suggested that people inject disinfectants and then lied about it being sarcasm the very next day. Even if that were true, what kind of world leader thinks it’s a good idea to be sarcastic during a global pandemic to troll the media?

Maybe it’s time for severe political unrest.
I knew they were successful, but I didn't know they were valued at 1.5 billion.
This headline (and article) is IMHO promoting a unit-less metric.

There's no mention of the yield in quality improvement per hour of simulation. I.e., how much better does the vehicle drive using the learnings from these 876,000 sim hours?

Once a sim pipeline is set up, it's "easy" to scale up the number of hours it runs (throw it more compute resources, throw it more scenarios). But that doesn't mean the analysis scales up, or the quality of the sim results, or the application of analysis to bug fixes or feature development.
I feel like we should be collecting a list of things to tackle given this huge social experiment.

The first one is air quality, but it sounds like the next might be, “yeah, teaching isn’t so easy is it? Maybe that skill deserves some compensation, hmm?”
Waymo's simulators are doing 100 years of playing video games per day. They're not doing any driving.
"I could teach anybody, even people in this room, to be a farmer. It's a process. You dig a hole, you put a seed in, you put dirt on top, add water, up comes the corn."

-Mike Bloomberg
yes, they specifically prohibit that (adding flyers). The customers is Amazon's, not seller's (but all the risk is on the seller).
The government has, in fact, banned most international air travel.
That’s not much of a leap, though: if you know you were talking to some people, and then audio is leaked, then you can figure out which account did it.

I’m not defending (or denouncing, for that matter) this feature, though I have opinions.
Alphabet revenue climbs 13%, but company warns of slowing ad sales
Having 10 times the amount of people show up at hospitals and having to turn away 80% of them and leave them to die would have been a pretty gruesome sight.
Thanks for spending your time explaining this.
I think a lof people will understand those lines better.

I actually already knew everything. I watched closely the development of Zig, and just give up when I realized all those decisions where made carelessly in my view or I just simply disagree with the direction of the syntax.

Since you took your time I will take mine to address what I don't like:

- There is no way to write "int" by default. I understand why. But I don't agree.

- struct and enum statements (within braces) are separated by a comma which is inconsistent with statements in function separated with ",". In my view expect a difference between parameters and statements. parameters (a,b,c) statement {a;b;c}

- You have to type "var" or "const" everywhere, but not in struct statement and enum statement. Sometimes it's like a "def" sometimes not.

- You have to type const when importing module:

const std = @import("std"); // Why ? Why should I specify const, this should be inferred. Same when I define a struct.

- the "undefined" keyword when it means "uninitialized" even in the documentation.

var my_var: i32 = undefined;

- The worst, no default values for struct.

- The list of keywords is insane: errdefer, allowzero, orelse, unreachable, anyerror

- About iterator I was doing well with:

while(get_next(context, &item)) { /* ... */ }

It's like everything has been carefully design to be even less readable than C code. I have the feeling that the syntax help more the compiler than de developer.

I wish I could bet thousands of dollars that there will be only one compiler in the whole life of Zig language (also because it relies way too much to LLVM).
This includes the same snippet of the article listed on the website, and doesn't bypass the paywall, FYI.
Do you know the variance in homeschool outcomes or public education outcomes? Or are you just guessing? I'm going to make my own guess that the the outcome for public or home education heavily depends on the family environment.
What does US Copyright law have to do with it?
How is this different from Bernie Sanders who supported communist Russia and went there to celebrate his honeymoon or whatever it was. The same communist Russia that killed tenths of millions of their own citizens in working camps and prisons following an ideology that dehumanised anybody who was not supporting their specific brand of ideology . Not to mention that we all buy products from China, a country that put Muslims in concentration camps as we speak. So we all make mistakes, Bernie Sanders doesn't even feel ashamed about supporting such a murderous regime, why someone who was a Nazi for two minutes and denounce it should be in trouble now?
You can split a collection of 2^(k-1)<=N<2^k elements into up to k arrays with length 2^i. Insertion into empty array with one element capacity is easy, insertion into array with single element creates an array with two elements. If you already have an array of two elements, you should merge these elements into array of 4 elements.

The merge operation is fast and cache oblivious. Thus, insertion into a set of these arrays is fast.

Query is not so fast - O(log^2N). But I can direct you to Cache-Oblivious Lookahead Arrays (COLA) paper where a technique to get back to O(logN) complexity for lookup is described.

Or you can simple merge these arrays into one at the bulk insertion end.

Source code (not mine): https://github.com/giannitedesco/cola
I would email hn@ycombinator.com about that. I’m just a user who reads HN on my phone.
Factory tour https://www.youtube.com/watch?v=zWP32tCPv_w
Any particular videos you'd recommend?
Nested, structured control can be broken into basic blocks without flattening it into if/goto first. It sounds easier, in fact.

In fact, the construction of a basic block from flat code is a form of recovery of control structure. If the original code had nested loops, nesting will emerge in the basic block graph.

A recursive traversal of the original structure could produce that graph more directly; it doesn't have to walk a flat list of instructions asking, "does this have a label on it which is the target of a branch".
without having to walk a flat list of instructions asking questions like "is this the target of a branch".

For instance, if we walk an if/then/else AST node, we can recursively get the basic block graph for the test, the then and else part, and then integrate that into a larger basic block graph according to a rigid pattern.
Could you please mention what are the other solutions you've got to see in this space?
Looks like a good update and they're moving in the right direction.

I think this should fix the main issues people have had with them (at least the most public problem with 'zoom bombing').

There's not much they can do about having all their development in China, but at least their focus on security otherwise seems to be paying off.

###

Quick Feature Summary:

- Mandatory GCM encryption requires Zoom clients to upgrade to 5.0 by May 30th [0]

- Hosts can prevent screenshare, chat, user renaming

- Hosts can report users to Zoom’s Trust & Safety team, who will review any potential misuse of the platform and take appropriate action.

- All hosts may now turn on the Waiting Rooms while their meeting is already in progress.

- Lock your meeting after everyone has arrived to prevent any unwanted disruptions.

- The host may remove a participant and they will be unable to re-enter the meeting.

- Waiting Room enabled by default

- Complex Meeting IDs

- Meeting passwords are now more complex and enabled by default

- Meeting Registration and Authentication (require email registration/restrict meetings to preset profiles)

- All cloud recordings are encrypted with complex passwords on by default.

- Audio Watermarks/Screen Share Watermark (help prevent leaks)

- Message Preview Options (Users can now enable Zoom Chat notifications to not show chat content while screen sharing.)

- Host or account admin can disable the ability for participants to show their profile picture or change it in a meeting.

- Hosts can now select which data center regions they would like their in-meeting traffic to use when scheduling a meeting, and participants can see which data center they are connected to by clicking on the info icon at the top left of the client window.

- Zoom 5.0 supports a new data structure for larger organizations, allowing them to link contacts across multiple accounts so people can easily and securely search and find meetings, chat, and phone contacts.

[0]: https://en.wikipedia.org/wiki/Galois/Counter_Mode
https://en.wikipedia.org/wiki/Maytag_Blue_cheese

Complete with patent-dickery:

"During the Second World War, [the] university patented the homogenisation of cheese milk and attempted to have charges levied on Danish cheese produced using homogenised milk. Their attempts failed, as it could be proved that this method had been introduced 20 years earlier in Denmark by Marius Boe."
Was the "voter-base" that put him in power primarily of the left or the right wings? Or more to the center in general?
There's still Uber Eats -- I'd expect that's grown significantly which would help soften the blow.
Not OP but you may find MQTT useful.

http://mqtt.org/
Real end to end encryption? No? Must be a hard problem that other people have solved.
Public magnet schools exist in many districts.
It's the classic line: "That's so simple, I could have built that" which warrants the classic response: "fuck you, you didn't".
Its a little tricky.. Even Weird Al gets the original artist's permission.

"(Technically, a parodist does not need permission, but it is a legal gray area, and Weird Al prefers to have every artist in on the joke.)"
https://www.nytimes.com/2020/04/09/magazine/weird-al-yankovi...

edit: the tricky pit is defining parody.
;) As someone fond of integers, I can't advocate base pi.
PayPal solves that problem does it not?
> Fwiw, I didn't somehow interpret it purposefully in any sinsiter way or choose to ignore an error to start an argument.

No worries, a lot of that was probably how it sounded in my head.
That is like a German pun

tree is Baum

R tree could be called Raum.

Which means space, which fits, because the tree stores the keys spatially.
As I understand it, Uber/Lyft were making a profit on actual rides in the mature markets. Uber was taking a heavy loss on each food delivery. So this crisis has been a double whammy to margins even though I suppose increased volume/adoption is good long term.
A Student-Created Co-Living House Broke the Law Then Changed the Law
How does that change the question I am asking of whether they might have been recorded and can be made available?
I'd still like to know what category of product you and others are talking about. I'm not in denial - just legitimately curious.
From the article (emphasis added)

> The Fed said Thursday it will invest up to $2.3 trillion in loans to aid small and mid-sized businesses and state and local governments as well as fund the purchases of some types of high-yield bonds, collateralized loan obligations and commercial mortgage-backed securities.

The qualifier is the fallen angels clause which I mentioned. The way this works is that the Fed buys investment-grade ETFs. The underlying indices for those funds still have companies which have been downgraded to junk, which are the falled angels. The Fed isn't going out and purchasing bonds directly in the bond market, they're using existing infrastructure to perform market operations.
What we now call “open source software” existed before 1998, but the phrase “open source software” wasn’t in widespread use prior to 1998, and any pre-1998 uses of the phrase don’t have the current quite specific meaning.

The FSF promoted the phrase “free software”. The “open source” term was chosen as an alternative because (1) English “free” is ambiguous (price vs liberty) (2) the FSF’s strict ethical stances weren’t very corporate-friendly and so “open source” avoided the association with FSF which was seen as alienating many corporate executives (3) it represented a broader range of acceptable licensing conditions than the FSF’s strict ethics would allow
"The righteous mind" speaks about this at some length, I'd highly recommend the book for anyone interested in a look at bonding individuals into groups.
I’m not suggesting the shutdown wasn’t the right choice. I’m only reminding people that there’s potentially a lot of things that can go wrong now. Unemployment is not the worst of them.
For others considering Rust + Kotlin for native Android development, there's also the Visly blog post[1] with basic steps. However, since then, Google officially released `androidx`. Unfortunately, Android Studio or the SDK lack `cargo fix` features of modifying your source code and instead just magically compiles with a compatibility layer. There's a PR on Visly's GitHub repo with these code fixes.

Also, their code base is minimal: does just enough with Rust shared library to have an app generate a log message. That's enough if you already know Android development.

For a complete end-to-end example search query screen with results screen (Activity, Fragment) using Rust, Kotlin, androidx, RecyclerView, ViewModel, etc., there's [2], but it was written while learning all things Android.

Perhaps it might help someone out there!

[1] https://medium.com/visly/rust-on-android-19f34a2fb43

[2] https://gitlab.com/dpezely/native-android-kotlin-rust

Edit: Yes, that second one is mine. Had fun learning but hopefully will never have to touch mobile dev again beyond maybe a PWA. (I'm a server-side dev.)
AI Tool Turns Any Song into Custom Beat Saber Map, and It Works
Unemployable -Some Mothers Do 'Ave 'Em Series 1 Episode 7 [video]
> Layoffs of that magnitude, which haven’t been finalized but could be announced in stages in the coming weeks, could result in more than 5,400 of Uber’s 27,000 employees losing their jobs. ...

That figure of 27K total employees is surprisingly high, given that AFAIK, it doesn't include actual drivers. I'd be interested in knowing how these jobs break down by task.
> This was so long ago and he hasn’t killed anyone or done any thing of the sort since then. Who cares ? It is up to the system to deal with him

His company, Banjo, was awarded surveillance contracts for the state of Utah. The state was paying Banjo tens of millions of dollars and giving them access to untold amounts of state surveillance data.

As a resident of Utah, I do not want my tax dollars sending surveillance data about me to a company founded and run by a white supremacist who assisted in shooting up a synagogue and then admitted to continuing his white supremacist associations long after the conviction.
Companies that are not profitable and have existed largely on hype/VC hype will continue to get crushed by their previous-years' bloat.

Companies that depend on people being out and about will get crushed by the coronavirus.

Uber is both.
What about people who are addicted (huge problem in the US)? If we give them money, they will spend it on drugs/alcohol/etc. and will still need to be taken care of.

So while food stamps (universal or need based) may not be a perfect solution (selling food stamps for drug money is not unheard of), it is still better, because it makes misappropriating the help provided more difficult.
We need some more competition. Maybe a real-life Pied Piper.
I'm beginning to think they're going to let the Fed "explode" but then we're supposed to go on like nothing ever happened. The mechanics of the explosion are what I wouldn't understand, but it could be as simple as debt forgiveness and businesses just suddenly have to pay a lot less money per month or no one comes to collect.

I don't think it's impossible to do financial engineering and hacking to the point where we can ignore an occasional fundamental collapse. Like if I owe money to a mobster, but I somehow kill his entire mob and burn all of his notes, so no one has memory of my obligation. It's just throwing my debt into a black hole and I'm not going to pay a dead guy.
You know what's a really challenging problem with GCs? COPYING MEMORY
Food delivery is a huge premium on top of already inflated restaurant prices. I would expect most people are trying to save money and making a lot of their own food.
The Habit of Art: How to write better stories, more consistently
The reason those businesses had to close is because we're in the middle of a pandemic that's killed ~50,000 people in 2 months. That sucks, but the government didn't cause this and doesn't owe the business owner any more than they owe any other citizen.
But in reality, the number of excess deaths compared to the average year, or compared to last year, is well above the counted number of COVID-19 deaths. Anecdotal claims about deaths being miscounted as COVID-19 don’t really stand up to this.

https://www.nytimes.com/interactive/2020/04/27/upshot/corona...

https://twitter.com/lymanstoneky/status/1252616296891465729

The level of deaths/week we are seeing is like nothing that has occurred in decades of recorded vital statistics. (The 1968 flu pandemic shows on the 2nd chart, but is small beans compared to COVID).
School doesn’t teach those skills from my personal experience.

I was a product of public schooling, the my way or highway attitudes of some teachers, the social isolation, cliches, bullying, teasing, all severely stunted my social development until I was a teenager and began competing in sports team environments, working jobs, and interacting with the public outside of school.

After a couple years I was far more developed socially than anything the school environment provided in the decade prior to that.

When I hear this reason often used, I fear it’s from people who enjoyed their social life in school due to reasons not actually involving the school, and place too much value in those social dynamics, ignoring the really ugly parts of it that hamper growth for a lot of students, including themselves.

My own experiences show they lack any real application to life outside of school. I’ve never had a decent job that worked socially like any school environment I’ve been in, and the one or two I did have were quickly left.
Their ride sharing platform is very sophisticated, though. Pathfinding based on gps locations, maps, traffic, and other obstacles, and solving traveling salesman problems with constantly changing variables are generally not simple problems (every ride sharing platform does it, sure, but that doesn't mean it's easy, or that they all do it well). Plus they are at a very high scale and high reliability, both of which require large amounts of employees (things don't just scale themselves). On top of that they have a lot of vertical / horizontal integrations.
It isn’t really shocking to discover that people don’t have the bandwidth to take on an additional full time job.
TL;DR, every marginal employee generates enough marginal revenue at scale that they more than pay for themselves, and so it's worth it for the company to keep adding people (at least while the business is doing well)
But why would grease work better when it gets more solid?

Usually the lighter fractions evaporate away, leaving solid grease that has more resistance.
Can someone help me out here with least upper bounds?

Generally the proofs of .9...=1 rely on the fact there is no number that exists that can be between .9.. and 1 and therefore .9... is equal to 1.

.9... is the least upper bounds of the set. My question is if .9... was removed from the set what would be the new least upper bounds. Another way of asking the question is if we define it in this context doesn't any set bounded by a real number have a least upper bounds and aren't all real numbers equal to each other?

Thanks!
"though there have been indications that the firm is undertaking cost-cutting measures".

Are they going to let people go?