skysight-inc/HackerNews huggingface dataset:
110% agreed. This is a near-textbook example of "just because you can doesn't mean you should".

The simple reason in this age of high frequency trading and massive amounts of money being moved around, a tiny arbitrage opportunity could instantly be magnified and trigger a system (market) crash. Whereas these crashes can and do occur today, the non-realtime aspect of settlement and clearing mitigates to a large extent. See the 2010 flash crash example: https://en.wikipedia.org/wiki/2010_flash_crash

In addition, I'm dubious of how "real time" this proposal will turn out to be. For one there are a number of dependencies and steps that need to be fully aligned to expedite from end of day to something faster. True real time systems are a rarity - most of the time the latency is still measured in minutes or hours. A flashy term that tech companies like to throw around.

Also this feels like a diversion tactic from the implosion of Robinhood of the company from last week's debacle. For those unaware, RH also put limits on AMD stock to be traded - what the heck?!
it's exactly this kind of misunderstanding that caused this particular herd of new investors to lose out. I've noticed a lot of people making definitive statements of wsb, even though when pressed they admit they don't know squat. This is one of many reasons I like hn better in general --- people don't usually pretend to know what they're talking about.
Say I had two of these cards. How would I send 200Gib of traffic through it? What would the test program look like?
Great "best practices" example is just now on homepage: https://startup-cto.net/10-bad-typescript-habits-to-break-th...
Safari simulates a finger press when mouse is clicked. I’m 99% sure. Will check.
> It is apparent to me that no other species (ever) has been implicated in a mass extinction event.

Not for lack of trying. Usually another species or the limited size of its habitable area will stop a species before it has a global impact, but if you focus on smaller ecosystems, you get the typical rabbit-and-hare boom-and-bust cycle resulting in extinction of both fairly regularly.
Amazon's stock went up like a rocket since its IPO. Wall Street didn't laugh at Bezos.
Israel will not achieve herd immunity against Covid-19
Gobo likes the classic, four-month-old TXR from 2009.

https://github.com/gobolinux/Recipes/blob/master/TXR/025/Rec...

They jumped on it shortly after I made the project public with version 9, picking up version 13. They updated to 18 and then one more time to 25 and that was it.

Guess I just don't make `em like I used to.
Well, some older browsers would try slapping .com at the end, and adding www at the start too, if no domain was found...

So just typing sex could be fruitful...
That's likely to include the Nedelin catastrophe ( https://en.wikipedia.org/wiki/Nedelin_catastrophe ) -

"The most recent estimated death toll, released by Roscosmos on the 50th anniversary of the accident and originating with agency engineer Boris Chertok, was that 126 people had died, but the agency qualified the number by saying that the actual number could be anywhere from 60 to 150 dead."
The lender is paid for the service of lending money out (which incurs risk). You want to incentivize this behavior.

Without interest, it would be harder for people to get loans. Lots of financial services wouldn’t exist (or would demand some other form of payment). This would keep people who aren’t already rich unable to access capital.

People react to incentives, good incentives lead to beneficial behavior. Interest is extremely net positive, both for lenders and for borrowers (and society). Everyone wins.

Crashes aren’t really built into the system or a fault of capitalism, they happen because problems are hard to predict and the environment changes. The wealth created isn’t only for the rich: https://press.stripe.com/#stubborn-attachments everyone benefits from economic growth.

I think Islamic law (or really any religious framework) has very little of value to say on the topic of morality or running a productive society.
Simple machines vs complex ones I guess.

A bicycle could be passed down the generations but not an electric car. Lithium wears down, software stops being updated, parts stop being produced, etc.

That's the price you pay for feaures. Clunky wired 1970s headphones don't fit my use case which requires headphones to be compact and wireless. The same way my electric car outperforms a super-serviceable Model T.
Yeah, just found it weird because Windows does have x264 codec, and obviously mp3 since ages.
We are firing on all cylinders

And yet, reviews are still horribly broken and have been for years. Also counterfeit products and books are everywhere on the site.

Amazon is going to have to fix those hugely important things before I'll buy the Kool-Aid that they're "firing on all cylinders", which is just CEO pep talk.
No, most families at Princeton are not typical working class families. The median family income of a student's family is about $180,000.

Yes, if you're accepted, you really don't have to worry about the price tag because of their financial aid. But poorer families are more likely to go to lower quality schools that may not even offer AP courses and do very little test prep. Families are also unable to afford top-tier test prep services either. On average, if you come from a poor family you've probably had to work harder, or be smarter, to get into Princeton.

I'm not saying this is a problem for Princeton to solve. I'm just saying that it's really not an institution highly accessible to middle/lower class. Just take for example the fact that they favor children of past alumni heavily: something like 30% of the class comes from "legacy" students whose parents(s) attended as well.
This looks like an extremely interesting book. I have yet to visit Berlin but I’m absolutely fascinated by urban histories like this.
Local zoo is zoo.org!
Prisma Cloud Reinvents the Firewall for Cloud Native Security
Great talk by Stefan Tilkov on the topic: https://youtu.be/AkYDsiRVqno?t=273 - Why software architects fail – and what to do about it
Nice analysis. I can answer your question by illuminating two major points you missed.

1. The StarShip reaches a terminal velocity (in "the bellyflop") of about 200 km/h downwards and remains at that velocity until the "flip maneuver" at the end.

That's essentially a free force vector upwards due to drag which is free thrust on descent.

2. The weight of fuel reduces drastically on ascent which is why less engines are required as the StarShip soars higher into the air (they shut down when one reaches the 40% min thrust)

You'll see during the hover at the top that StarShip balanced on one engine for some time without moving. So that is the thrust required for station keeping. What we saw here was a combination of reaching a target location and burning excess fuel.

---

So, landing burn is (supposed to be) done with two fully throttled raptors, which is essentially 4x the hover thrust. Here with SN9 you see what happens when only one of those raptors is actually working.

Here is an Excellent SN8 (not SN9) video with carefully reconstructed telemetry (based on pixel counting video references) and you can see the velocities on descent. Rewind the video for full detail:

https://youtu.be/XJZ7VWzqtJM?t=867 [How to simulate a Starship launch!]
Ya, this didn't cost Amazon anything. They won that case. Their lawyers even got some free practice. Next time they will do better.
For many programs, memory safety is more important than raw performance.

It's obvious to me that the path of least resistance for memory safety in legacy C code is a memory-safe compiler, ABI (amd64_safe) and runtime, e.g.

cc --safe httpd.c

I probably wouldn't mind if --safe were the default.
African phone company supposedly caught turning off Signal notifs by default
I think the word you are looking for is bloodline or pedigree.
How so? Shorters push stock down, so how does it benefit the agriculture industry?
One detail in the article is just wrong.

> 15 Chinese warplanes, including eight bombers capable of carrying nuclear weapons, entered Taiwan’s air defense identification area, a no-go zone that, while not recognized by international law, the Chinese military had respected for years.

This is just complete BS. Chinese warplanes fly in Taiwan's ADIZ every day. Taiwan's ADIZ extends over Chinese airspace, hundreds into kilometers Chinese mainland.

https://upload.wikimedia.org/wikipedia/commons/c/c9/JADIZ_an...
The money you put up to buy a stock is your money. SEC rules require that it be kept segregated. It is at no point available for your brokerage to post as collateral for its own risks.

DTCC protects brokerages from each other. Brokerages post collateral to insure each other in case a brokerage fails, and the customers, at other brokerages, on the other sides of the trades from the failed broker, need to be made whole. The clearinghouse isn't insuring against you the customer not being there with the $15 to buy your GME share tomorrow. It's insuring against something horrible happening at Robinhood that zeroes out all its accounts, drives it out of business, traps all its staff in a deep sea diving bell, that kind of thing.
It's crazy that these companies can grow at this speed even though they are larger than any that existed historically. We're talking about multiple companies with market caps north of one trillion USD with double-digit growth and massive profit margins. We need to have a revamp of anti-trust regulations to break them up, because with their immense financial warchests and the protection of network effects, they are not going to face real competition from anyone. An economy made up of many smaller companies will not just create better outcomes for customers but also distribute wealth better. But right now, I don't get the sense that the competition mechanism works well against these giants.
Unfortunately I think they're locked behind the paywalls of various journals, or internal Harman research. You can piece a lot of together from his blog posts, but it's rather labor-intensive.

Google scholar will pick them up you type in "Sean Olive." For example: https://www.aes.org/e-lib/browse.cfm?elib=16486

If anyone reading this finds a free way to access the original papers, please comment.
Oh wow, didn't know you could buy these of mouser.
What Does It Mean to Be Objective in Science? [Longform Interview]
They ended up in a situation where they had to prevent trading, draw down their entire credit lines and then do another funding round to shore up $3.4Bn - it's pretty clear they fucked up their collateral.
Many will unironically justify their actions by declaring themselves to be "on the right side of history". The phrase has an unsurprising origin.
Pussy-Discovery
[Parody]
We believe finding a pussy (cat) for your enjoyment should be safe, transparent and fair
> I'm a qualified and capable person when it comes to analysis and discourse.

Are you, uh, entirely certain about that?
> This kind of reasoning actually does lead to better consequences, not worse.

I strongly disagree. Believing that people don't make choices is just a handy excuse for some people to make choices that cause others to suffer.

See my response to abellerose just now (edit: and my response to you upthread about child trafficking).
> Based on what I've observed by studying successful open source projects, you actually want to discourage "very high impact" employees, since they introduce knowledge risk.

This is a dangerous conclusion, especially for a business. If you're in pure maintenance mode, maybe... but otherwise... You want people who can pitch in anywhere, who can fix things rapidly, who can build new solutions quickly when required, and who know your business inside and out.

You just don't want knowledge siloed there, so you want to make sure other people are also on the path to being expert on the various areas.
I would argue that being limited to two levels is a feature.

Here's a related quote[0] from Edward Tufte.

"Dr Spock's Baby Care is a best-selling owner's manual for the most complicated 'product' imaginable -- and it only has two levels of headings. You people have 8 levels of hierarchy and I haven't even stopped counting yet. No wonder you think it's complicated."

[0] http://web.archive.org/web/20080610092329/http://blogs.sun.c...
One of my pastimes is randomly exploring the Unix Toolkit. It's basically, "What is this thing? What does it do? Do I have a use for it?" And even if the answer is "no", at least I now know it exists and where to find it should my needs change...
Well, St. Augustine said "On this rock, therefore, He said, which thou hast confessed. I will build my Church. For the Rock (petra) is Christ; and on this foundation was Peter himself built."

The topic in question they are discussing is the status of Christ. So in this interpretation ‘This Rock’ refers to the statement Peter made about Christ in the previous passage. It’s simply Jesus asserting that this statement of Peter’s is true and the foundation of the Christian faith.

How are we to determine which interpretation is correct? It’s just a matter of opinion. There is no test we can apply to settle the matter. Therefore I think people fall back on other motivations to come to a conclusion - quite reasonably because I think they have no choice. They have to decide one way or the other somehow.
News Corp is a US company as well. But none of this is about influence or regulation and none of this touches upon anything related to privacy (although one of the slightly more conspiratorial theories is that News Corp wants access to more 'analytics' data, and this bill may enable that).

Google and Facebook are worse than a thousand creepy uncles as it relates to user privacy, but that's not what this is about.
Nasa did the calculation with with ancient computers and these guys are speculating and not using proper technology to achieve success. It makes no sense in 2021.

They should not be experimenting. Their simulations should be been solid before this stage.

It is good way to burn cash.
Out of curiosity, why would you not want to sign up? All the vaccine results have been amazingly positive.
TypeScript got `!= null` wrong. In Flow (and CoffeeSript) null and undefined are treated the same, and `!= null` is preferred. You do not want to deal with code that treats null and undefined differently.

Otherwise this is a great list!
It's very sad but it's not a bad way to go. I was a nuclear plant supervisor for about 20 years. One day the temp started to increase in the control room. The 3 AC units were behind the control room so I headed there to check on things. Another guy said he'd go with me. These things are as big as locomotives. Well while we were in the room a refrigerant relief valve lifted with a huge roar. Turns out, amazingly, the relief was designed to vent into the room. We made it to the card reader to get back into the control room but my card kept being rejected. I felt myself sliding down the wall and next I knew I was sitting in a chair in the control room feeling better and better. If my buddy hadn't decided to come with me I would have died in that room.

There was no panicky brain screaming "we need air" or any feeling of being O2 short. It was just normal breathing. If you're going to end it all that's the way to do it.

I wrote an incident report with the obvious suggestion to vent the reliefs outside. It was modified the next outage.
"ripping into people" was famous Bezos/Amazon culture from the start.
Outbound Sales for Founders
Well then a business person could think of it in an afternoon.
Totally agree with you.

Some of the rebuttals below seem to be saying "But I use them differently!" Bully for them, but 99% of the time when it's not set, you don't really care why it's not set because it's not defined yet or because it's been set to `null`.

And any time they assume it can only be null OR undefined but not either, there's a chance for a bug. Even if I "know" it can only ever be null and not undefined, it's safer to just say != null rather than !== null.

Treating them differently in a code base is a legit semantic, but testing with != null works no matter the intended semantics.
They gave guidance that it might reduce audience network revenue by 50%
I spent about an hour on this after your comment. Honestly, I was pretty lost in the filesystem for half of that time. I have never used either distro.

My copy of NixOS had no password on the root user by default, which is not ideal but I assume most deployments aren't like that (right?). I was able to become other users on GuixSD using the SUID's the distro ships with, but not root. Not yet. The surface is much larger on both of those distros than the mainstream OS's. I may be able to pull of a root LPE, but I'd need to look for a full day at least.
Kraken Digital Asset Exchange | Software Engineers | Remote | https://www.kraken.com/en-us/careers

Kraken was founded in 2011, being a pioneer exchange in the crypto market. Kraken is in rapid expansion of its engineering teams. At Kraken we have a remote global workforce, allowing our employees to have more freedom in choosing how to organize their routine and balance work and personal life.

February Highlight:

(Senior) Backend Engineer - Rust

We’re also hiring software engineers with the following skillsets: Backend (Rust/Go/Typescript/PHP), Frontend (React/Flux/Typescript/Sass/Less/NextJS) and many more.

Please apply directly on our careers page at https://www.kraken.com/en-us/careers.
Some codebases prefer `TItem` - the preceding T signifies that this is a type variable, not a type, which is quite helpful when reading type signatures.
That's probably what FAA was peeved about SN8. They might have been expecting a water landing and didn't like that an unproven rocket was sent back to dry land.
Soviet spaceflights were quite long compared to American - Salyut-6 and Salyut-7 both had more expeditions than Skylab, and that's before Mir, while Shuttles were limited to about a month in space per flight. Of course launch and landing are more dangerous phases of flight - Apollo-13 notwithstanding - so it makes harder to pinpoint an objective measure for safety.
You would also have to know whether adultery took place which resulted in a child and whether any of the 'descendants' were adopted. It would be less work to disinter Dante and compare the DNA directly.

Also, in fairness to the poster, incest was in quotes.
They effectively were "out of GME stock". They usually have to put up 10% (or something) per share collateral with DTCC to send out more buys, but the volatility meant that it went up to 100% collateral, so they couldn't afford to allow purchases. This happens based on a formula where one of the factors is GME being the #1 stock being purchased that day on RH.

> It seems to me that when stock is volatile is exactly when I should be buying and selling and if my broker can’t make that happen it’s a problem, no?

If a stock is volatile you should not be buying it, that's how you lose money. The people who profit are market makers like RH's Citadel, who get paid on every trade.

> And it’s also a problem that their inability to trade that stock affects the price. So what is the correct solution here?

Technological improvements like the one RH's CEO wrote this article about. Btw, for reasons I've forgotten RH's collateral issues got even worse as the price went down again - if it kept going up it'd actually be more possible for them to continue providing buys.
Ask HN: Cross Platform Development
What are your experiences with cross platform development? I’m evaluating options for a project and curious where the mindshare is at in 2021. It seems like React Native or Flutter are the best bet and was curious about other people’s experiences.
Ask HN: Work Life Balance at Facebook
I recently got an offer for senior software engineer (E5) at Facebook. I'm excited, but I'm concerned about WLB at FB. It seems that the consensus is that work life at FB is very demanding.

I'm interested in hearing any personal experience that is counter to this narrative from the folks who work at FB. Are you working 40 hours or less at FB? I wanna know.

Can I expect Google or Microsoft level of WLB at FB? If so, which teams are the best for this?
I don't think there was an architecture to speak of in the first place in your case.
>> This journey began some 27 years ago. Amazon was only an idea, and it had no name.

> It had a name, and that name was "Cadabra".

This seems like nitpicking. Lots of projects start out with long forgotten names. I'm involved in one that's pretty successful, but you can see from the code base the name evolved over time (~15 years). Codenames and attempts at product placing in the market evolve, stuff becomes myth or forgotten. I can absolve Bezos (this once) of not remembering exactly what that embryonic Amazon was to begin with, or was called, because it was ~25 years ago, probably during a period of great turmoil.

And the tone of this comment feels like someone who checked out of the company too early and feels a bit sour at doing so. I say this as a single digit employee who could have made a small fortune a couple of times but either bottled it, or the gig wasn't right for me. I missed out on some nice payouts, but I'm not that sour about it. It was my choice.
“This is all for the greater good”
Well that's a long reply, and I agree with you by and large. RH has a bright future if they communicate better with their users.

Re: Fidelity, by excellent I mean: it does what I want it to do, and the UI is clear enough. To be fair, I'm an infrequent trader who mainly uses Fidelity for banking, so I don't spend much time on the app. I'm also willing to sacrifice UI flashiness for a functional service that doesn't block me from trading when I do.

[ETA: I believe there's a lot to be said, and has been said, for ugly functional UIs that outlast fancier competition. The archetype is craigslist]
"The only way to understand the Press is to remember that they pander to their readers' prejudices."

-Sir Humphrey Appleby, 1986

Technology might have advanced a zillion times in the past 35 years. Media and the Press have remained largely the same.
And who could forget Cairo ShootOut? https://macintoshgarden.org/games/cairo-shootout

(God rest your soul, Mr. Blehm.)
I was on a project-from-hell once where the project lead cared far more about getting types perfect than allowing the code to be, you know, useful.

If we couldn't do something 100% type-safe then we weren't supposed to do it at all. I kid you not.

I got off of that project as soon as I could manage without burning a bridge. Funny thing was that before that? I thought I was quite the stickler for getting types as correct as possible. Turns out I was off by an order of magnitude of what a real "stickler" for correct types could be...
With 5 ways to get root, the attacker will be rendered harmless via decision paralysis.
Show HN: Bold, quirky and unique designs to empower women in tech
Microsoft are just excited at the possibility of a whole country being essentially forced to use Bing.

Australia might even form 90% of their user base.
> believing in free will as commonly referred to means it's ok to choose not to do something about bad behavior happening in the world.

Yes, that's true. However...

> It's not ok to stand by and let child trafficking happen.

...unless child trafficking is happening right in front of you, you're not "standing by". There are a zillion bad things always happening around the world. Are we all supposed to stop all of them? And how would not believing in free will help stop all of them? I don't see how that follows at all.

Furthermore, let's say we do stop believing in free will; then what? Do we all get forced to drop everything else in our lives and go stop child trafficking? Says who? There is no way to even implement a scheme like that unless someone makes a choice and decides what needs to be stopped and tells others to go stop it. Calling this "not believing in free will" strikes me as pointless at best, and deliberate manipulation at worst.