skysight-inc/HackerNews huggingface dataset:
Firstly, this isn't true. Just this week AMC was trading tens of billions of dollars worth of shares per day, which is about equal to AAPL. GME is seeing >twice as much.

Second, the insane amount of volatility and concentration in these tickers makes the clearinghouses charge the brokerages way way more. You have fees (quoted in %) for expected change and also lack of diversity.
Just for the fun of it I tested what speed up I could get with a naive algorithm and pythran. Based on your description it looks like the I should do the following:

def threshold_pixel(img, thr):
out = np.zeros_like(img)
o = np.mean(img, axis=-1)
out[o>thr] = 255
return out

This runs in ~30ms for a (1024,1024,3) array using numpy on my machine. Using pythran (note I had to explicitely write out the loop for out[o>thr] =255, due to a bug, that I found and just reported), I get a speed of 6.ms (with openmp) and 9ms without (I did not tune the openmp, but this should yield a much higher speedup).

P.S.: Just had a look at your project, very cool, I have to try that
'Sea Prison': Covid-19 has left hundreds of thousands of seafarers stranded
That may be true, but this remedy would still harm both developers and users much more than the 30% does.

Having to support multiple stores will cost small developers much more than it does large ones.

And having to deal with more scammy apps, and the loss of any tracking prevention will be a pure step backwards for users.

Nobody should support this move by Facebook, even if you believe the app market needs reform.

A Facebook App Store is obviously not the solution.

There is actually no reason why the 30% couldn’t just be regulated directly, e.g. in the way that music performance royalties are regulated.
Even if FB does open a store, the apps released on it will still be controlled by the OS of the device. So if iOS still says you can't track, you must get permissions for specific access, then that's how it will be. FB has no control over that.
https://www.fidelity.com/learning-center/trading-investing/t...
Because your collateral requirement can vary based on the stock volatility.
A Facebook store would be an instant flop because it adds nothing of value to the ecosystem. By your logic why aren't they running a successful store on Android?
> I mean, I think it's obvious that the OP meant "good ideas"

Eh, I consider "Ideas that are known for a fact to be good (ie useful) are useful (ie valuable, provided they aren't already devalued by ubiquity[0])." to be sufficiently tautological that I would not expect someone (intellegent and good-faith enough to be worth engaging with) to be arguing against it. Although note the distinction between merely good ideas, versus ideas that you actually know are good, since the work of turning the former into the latter was what I assumed they were attributing to execution.

> I don't think his claim was just epistemological the way you're interpreting it, and if it was, then I will withdraw since it's not the idea I meant to engage with.

Fair enough; I'm not sure we even have a disagreement over facts so much as over how we're categorizing things and the terminology therefor.

0: Eg, "writing" or "general-purpose computers" are almost incalculably valuable ideas, but they're not worth anything in a supply-and-demand sense because everyone in the world already knows about them.
Just like with Tesla's AutoPilot, naming does matter.

If you tell people your car has AutoPilot, what would a reasonable person assume? It can drive itself! And they did, and people have died.

When RH tells Average Joe that the funds are "Instantly" available... that does indeed mean instant to most people.
If Robinhood wanted to manipulate the GME market, they would have banned selling, not buying. Driving GMEs price lower increases Robinhoods collateral requirements and pushes them closer to bankruptcy.
I miss when KDE had this in the KDE4 days. The only place I know where you can have window tabs by default is in Haiku.
Article’s first example is an outright display of racism. These people aren’t being banned for being left wing and it’s insulting to readers to think readers would believe this.
Can you please elaborate on why DTCC collateral calls or other things should prevent buying GME stock on non-margin accounts, like many brokers did? If you trade more, it actually brings more money to brokers.
I'm not talking about options or margin here, that's a different story and broker's risk management is involved.
I've received upwards of 30 for short periods in hard to borrow issues (we're talking american certificates of canadian mining stocks, etc). I've never heard of 80.
For my most common uses cases - daily jobs to fetch data from remote APIs, clean, transform and combining data sets in a batch pipeline - the startup time has not been an issue.

Most steps are short scripts of a few hundred lines and compile quickly.

Downloading dependencies (libraries) may take a while depending on how much you pull in from e.g. NuGet (seconds not minutes) but you can keep these between runs.

For historical context, around 1994, I ditched shell with heavy awk and add use in favour of Perl to avoid the heavy overhead of multiple processes being spawned by the shell scripts.

So you have to know both what you need but also which alternatives you are benchmarking it against.
This chip is very small and it does not benefit in any possible way from more advanced technological process. And using more advanced process means additional drawbacks and cost increases.
> Note the weasel phrase "Advertising platform". Remember, Apple keeps all of our private data, messages and even locations stored on their servers. Well, at least from most of us that use iCloud.

Isn't all this private data encrypted with the user keys?

That's the impression I have gotten at least and I hope I'm not wrong.
Arguing in bad faith for retail investors isn't going to help.

And if the latter is indeed true, it's textbook market manipulation by RH to save their own ass, and I hope RH is punished to the fullest extent of the law.
Some kind of internal state specific to Microsoft's libm? It doesn't look like _fpreset() is present anywhere else.

Though in general, IEEE-754 math does have a small amount of global state, for stuff like rounding modes and subnormals. Perhaps the spawned thread's fenv was unexpected.

I'm not super convinced by this blog post anyway, since it immediately confuses associativity with commutativity.
I originally thought the Oxford/AstraZeneca vaccine was significantly behind the mRNA vaccines in efficacy. But then I learned that the Oxford trials PCR-tested every participant regularly, while the Pfizer and Moderna trials only tested participants that were showing symptoms. So there's a very real chance that behind that ~95% number the mRNA vaccines also had asymptomatic cases that were never discovered during trials, and the actual protection is nearly the same as the Oxford one. The mRNA vaccines still seem like a great leap forward, and they don't come with the potential complications of resistance to the vector virus that adenovirus-based vaccines do - but I'm less sure now that they actually offer better protection overall.
Sure. And? It used to be the case (only a couple years ago--) that you had to have an account worth at least $10k and at least represent that you had some experience to get approved for margin at most brokerages.

Although it's been a long time, I spent the first decade with a trading account without margin just fine.
Quantity Does Matter
From playing around with it for a bit, it allows you to tab any application, including tabbing different applications together in a group. There's also something to do with workspaces that I haven't played with yet.
Commission free is pretty much the norm these days. There are exceptions, but the norm.

I don't disagree that, for most people, just investing in index funds is probably the best approach.
I've had this for years in i3 on Linux.
Ok, I've taken 'interview' out of the title above. Not necessary really.
I just want to be able to build an app and put it on my phone, which I supposedly own, without having to jump through any of Apple's hoops.

Is this lawsuit going to help me in any way?
i3 and any similar window manager have this feature.
Of course, hardware helps a lot. But I doubt that getting from typical 5%-10% of native performance to 70% (7-14 times speedup) can be attributed only to hardware assistance. MIPS is way too different from x86.
I would take a Johnson&Johnson or Astra Zeneca vaccine tomorrow if I were offered, don't misunderstand me.
> For me, and I think the majority, memory is where you keep what your brain thinks that it will use again.

There's some pedagogical theory around this. (I learned this through the FAA's instructor training.) Sort of common sense stuff, but it's helpful for structuring learning. Basically you'll remember things that you use a lot, have used recently, experienced intensely (e.g. actually used rather than just read about), and had fun learning. In addition, the first way you learn to do something tends to stick.

Cite: https://en.wikipedia.org/wiki/Principles_of_learning
Exactly, I don't care if you are left wing or right wing, if you are extreme one or the other then it seems to usually be similar (often objectionable and not inclusive) behaviours with different view points.

A meme I like but never saw until recently, "But what if I told you a bird needs both wings to fly?"
The processor itself supports configuring some aspects of floating point behavior; on x86 this is the MXCSR register. The most important one is rounding mode: you can choose round-to-nearest, round-down, round-up, or round-towards-zero. Less common options include whether to raise an exception on various out-of-range conditions, and whether to treat denormal numbers as zero (faster but less accurate and not IEEE 754 compliant).

The C standard library has functions to do this configuration; search for fesetenv. _fpreset is not a standard function but, at least in Wine's implementation [1], just resets the relevant configuration registers to an initial state.

[1] https://github.com/wine-mirror/wine/blob/e909986e6ea5ecd49b2...
>What my perception was, was that you were being loaned money against the transfer you were sending in

That is margin trading though. It sounds like you thought only some trading on a loan counts as margin per definition but you knew you weren't trading with your actual money but a loan which is the important part.
Is there any evidence that RH's collateral requirements specifically are increasing?

The DTCC typically has a restricted list of specific securities with higher than usual collateral requirements, usually because of volatility - it seems that in RH's case, their use base mostly wants to trade stocks on this restricted list, causing severe issues for RH.
I think it all depends on how they will assign ownership to the assets. Stocks are, at sometimes, a surprisingly tricky case to determine ownership [0].

[0] https://www.bloomberg.com/opinion/articles/2015-07-14/banks-...
To be honest yes the AP being racist is surprising.
PDF is a shitty format.

As proof, I offer: can't grep on it.

Which, BTW, if it was possible, would have prevented this mess.
Limitations on the physical actions the player can take is relatively limited - players can't even jump, very much limits bugs that come from player movement and the physics engine. But the gameplay has some very complex mechanics. Mechanics where lesser programmers would have ended up with a far buggers and less fun version. Imo it's easy to imagine weird bugs that manifest as flakiness slipping into the code that back railroad signals and repeaters, and intersecting tracks.
This is a bad faith argument: an operating system is fundamentally different from an application.
Perhaps they play NetHack: https://nethackwiki.com/wiki/Loadstone
What kinds of improvements would you like to see?
I'd love to see some research about this from an unbiased source showing that targeted advertising produces great results in small businesses (<100 employees, or <5M revenue yearly).
There was nothing illegal in what Robinhood did, and every broker has the right to determine which instruments they are willing to sell or buy, at any time.

Would you prefer Robinhood to implode so you have to wait years to get a small fraction of your account paid?
Yep, C# and Windows Forms recommendation from me too. Excellent tooling, fine language, mature and straightforward tech, very popular over very many years so wide resources online.

WPF seems like a nice idea, but it's tricky to get into, has limited penetration/support, and it's never been very clear whether Microsoft have abandoned it or not (including to Microsoft, I sometimes suspect).

If it's a basic app, basic WinForms should do just fine.
My Everyday Struggles as a Senior Developer
Doesn’t make books bad. It still requires someone sitting down to organize his/her thoughts and do the research.
Small business are well known for making very poor decisions on average. Just look at Groupon and Food Delivery App XYZ. Moving lots of inventory at negative margins is much easier than doing so profitability, which is one of the reasons they so frequently fail.
GME moved about 2/3 as much as AAPL today.
Sanofi will be producing the Pfizer-Biontech vaccine, but it takes a lot of time to set up a new production line. Last estimate I saw was saying July.
And yet the car companies make very little
On CNBC yesterday, Vlad's exact words were "No, to be clear, there is no liquidity problem" [1].

I'm willing to accept that it wasn't a total lie yesterday, and the situation has developed. I think we're past the point to where that statement would still be truthful today.

[1] https://www.cnbc.com/2021/01/29/robinhood-ceo-vlad-tenev-tap...
YInMn, the First New Blue Pigment in Two Centuries
They did get new investment (the story isn't clear if it's a bridge loan or equity)

https://techcrunch.com/2021/01/29/robinhood-raises-1b-after-...
Agree entirely.

However this is not about how many vaccines have been bought, but how many are being delivered via current production. The US, EU, UK, etc have indeed bought more than they needed, but they won't (by definition) be using more than they needed - the extra purchases were due to spreading the production and vaccine approval risk to ensure that enough were available.

You could reasonably argue they shouldn't be vaccinating whole populations, by which I mean including low-risk elements, whilst poorer countries cannot vaccinate even high-risk ones. That's a different question though.
Whoa, missed that one. Thanks!
An interview with Webull CEO Anthony Denier explained much more about the underlying mechanics of clearing houses, collateral requirements, and the Deposit Trust Company (DTC). https://www.youtube.com/watch?v=4RS4JIEVyXM
Exactly! Maybe 15 years ago I had the same confusion with fidelity—-why are my trades on margin when there is ample cash to support them? It’s all about the speed of settlement—margin unlocks the opportunity to transact in real-time. At the time, I remember having an option to opt-out of margin based transactions, but don’t remember seeing that anytime recently.

For people playing the gme lotto (no wrong making—-actually wish I had time to join the party), settling any way other than margin is effectively Russian roulette!
> So DTCC (the main clearing house) going under would stop pretty much all trading in the US.

What would be the impact of that on the global financial markets? On the real economy?

I think we're going to see some difficult regulations on retail investors in the not too far future.
i hope you have a tool that pulls all those links together for you.
So, what should be used?
Guillan barré syndrome is not considered an allergic reaction to the best of my knowledge. So your brother’s case doesn’t contradict the claim.

And yeah GBS can happen with any vaccine but more importantly also from viral infections. Generally more frequently from the viruses themselves.
For once, not DNS: Huawei Modem ARP spoofing
C "supports" whatever the hardware and compiler feel like supporting. It absolutely does not mandate anything. In particular, there are a number of particularly simple compiler optimizations that are not forbidden, though they are not technically correct according to IEEE 754, such as algebraic reassociation and simple commutativity. Moreover, C allows subexpressions to be computed in higher precision (e.g. 80 bit "long double"), which is observable. That last one is primarily due to the x87 FPU coprocessor design that has given us a good 35 years of headaches. Good riddance to that!
Nice, thanks. FF on android
I still don't understand is Apple conservative about AppStore because of security reasons or like Zuck said they prefer their own apps and services. I mean if Google open sourced Android why wouldn't Apple ease their AppStore policies?
99% of the people who use RH could not use it if RH didn't give you "implicit margin". The "democratization" is centered around it

And I mean if you want, ask RH and they'll downgrade to to a cash account... just be ready for T+2 and no options trading

https://robinhood.com/us/en/support/articles/options-investi...

> NOTE: If you start options trading in your Cash account, we’ll automatically upgrade you to an Instant account.

If Robinhood only had covered options you'd be right back to: not supporting the way people are using it to enable all this.

-

In fact, imagine if they didn't do this, all the new people who tried to enter GME would have had to wait 2 days to enter, and much fewer people would have had access to options

Ironically I actually think it might have stopped this dead in its tracks by damping the influx of cash
I like Matt Levine's comment " The guy behind one of the greatest trades of our time was giving out financial advice for MassMutual, and somehow they let him go."

edit I missed the best part of the quote "I hope he showed up at client meetings in a headband and sunglasses with a glass of champagne in one hand and a chicken tender in the other. I hope he was like “never mind life insurance, man, you gotta buy GameStop calls! Get those tendies!” And then I hope the clients were like “what” and MassMutual fired him and he just went and did the thing. "

https://www.bloomberg.com/opinion/articles/2021-01-29/reddit...
Investors have been known to want increased volatility because playing it right increases profit. If you can target that volatility to specific industries or companies, all the better.

If a foreign adversary was using bots or social media manipulation to drive up this behavior, perhaps they could target the right companies in the market to reveal structural weakness. Similar to how the 2016 election interference happened. Though that is getting much more on the conspiratorial side.
I think Facebook has 2 or 3 targets here.

They want to force Apple to open up the restriction on the App Store. Apple has been slowly turning the screws making it more and more difficult to get information out of the phone. I'm not sure Facebook is going to be able to get that, but I suspect they have a plan B which is iMessage.

iMessage is Apple's secret "Social Network". When I quit Facebook, it's what I turned to, and I know a lot of people who rely on it as their primary way of keeping in touch with friends/ family and the increasing functionality of iMessage is becoming more of a threat to FB.

While Facebook, Instagram, WhatsApp and all the other messaging apps have to beg to get access to Photos, Location, ApplePay, cameras, FaceId, etc, with iMessage everything is permitted out of the box. Apple has a whole mini-App Store for iMessage which isn't really possible with Facebook.

Finally, I'm sure Facebook would absolutely love to open up their own Ad-supported App Store which tracks everyone to their hearts content. Piles of money building an App Store, particularly when someone else is building the whole tool-chain to make it work and you just have to serve up the content.
Regardless of what sector size you configure the SSD to expose, the drive's flash translation layer still manages logical to physical mappings at a 4kB granularity, the underlying media page size is usually on the order of 16kB, and the erase block size is several MB. So what ashift value you want to use depends very much on what kind of tradeoffs you're okay with in terms of different aspects of performance and write endurance/write amplification. But for most flash-based SSDs, there's no reason to set ashift to anything less than 12 (corresponding to 4kB blocks).
apparently this is going to happen with Sanofi producing Pfizer vaccine after they closed their own trials without a successful candidate.
Except that the lender is seeing the price skyrocket, so they're not selling it back.
Maybe their investors can’t come up with multiple billions in the next few days?

And what if GME goes to $1,000 Monday, or $10? And Robinhood still gets liquidated? Where is there no risk?
Plenty of people trading for 10k at Schwab don't know either. Plenty of people don't know the details of their bank account, too. I do blame RH but not for this..

People are always going to be uninformed about some things, yes we should minimize that but we shouldn't make services available only to the rich because of it.
I could if I had the framework docs. I have also made a few boilerplate projects to make it easier and faster to get started with simple stuff like Flask modular app and tornado consumer daemon.

If I had a book on each framework I use with their docs reference material I could do without Google.

It's a fun question but can it really happen realistically? I mean if there is still a demand for web apps then there is most likely some sort of way to index the existing web and search it. Even if that isn't google anymore.
It took me a minute to figure out, you have to drag the circle up and down to select the number. I had expected to drag the whole bar - oops!

Edit: Also on FF. (85.0 on Linux)
Thought experiment:

Lets say everyone(or just the people who are in GME) decided to liquidate their holding on RH now, ie. they are fed up with that exchange for various reasons. From what I understand they would not be able to pay out funds to sellers? If so this would create a 1920's style run on their exchange that could spill over into other exchanges? I am genuinely curious as it would behoove RH to let people keep buying vs. sell only.
I've been a lawyer for quite some time, and I can't recall the last time I saw this phrase used. I'm not sure I ever have.
I have a comment from earlier today on another post that I think is accurate enough: https://news.ycombinator.com/item?id=25958644
Bring graph view and backlinks to your Bear note app
I have been investing in the market for over 15 years. Since when do earnings announcements cause a brokerage to limit buying?
But in the case of a car company owning a bank, neither market cap or EV are good answers for comparison. The first lets debt cloud the intrinsic value of the manufacturing operation, and the second dumps the value of six months worth of production onto the calculation for no real reason.

VW has 133 billion euros of receivables for its leases. If we talk about Tesla's worth in comparison to VW by comparing EV, we're essentially discarding that line item - worth double the market cap of GM.

And as I said above, if Tesla buys this $0 market cap $800bn EV bank, why should it change the relative value of the car companies to each other? Using your method, it does.

To put it another way, when Tesla took on $500m in debt to offer Model 3 leases - did the business really change in any material way? If they financed $10bn 3/Y leases this year - would the value of the company bump up by 1% compared to if they used a leasing partner?
On Tuesday, GME traded more volume than any other stock, and that's on a day when the total market volume was much higher than usual (Wednesday is now the all-time record for share volume).