skysight-inc/HackerNews huggingface dataset:
In a volatile market - a single share may trade many times a day - and Robinhood has to have enough to cover each trade (not share) - so the market cap is not a ceiling. It's likely RH didn't have enough money to adequately cover the levels of volatility (or they projected they wouldn't, soon).
>> The UI is fairly simple

It isn't. There is significant depth to menus and displays. The way that players can interact with information is very complex, more complex than something as simple as FPS or flight simulator. If we wanted to get very simplistic, Factrio has a much wider variety of button presses than most every FPS.
How fundamental is the requirement that all the "block stuff" be exactly four characters wide?

The parts that were the strangest for me are that link references can only contain a single unicode character and that block quotes are ">" plus three spaces, instead of ">" plus one space.
The same share of stock can be shorted multiple times, as it gets traded from person to person, letting you hit any arbitrary number of shorted shares.

The reason it's so heavily shorted is because institutional investors believe that GME is an overvalued piece of shit. I don't know if it was overvalued last week, but I'm 100% confident that it is indeed overvalued this week.

I've been sorely tempted to short it myself... But I don't pick stocks, or play with options.
It is alleged that a journalist asked Abraham Lincoln why he didn't just declare the slaves free and be done with it.

"If I called a lamb's tail a 'leg', how many legs would that lamb have?"

"Five."

"Four. Calling a 'tail' a 'leg' doesn't make it so."

Probably-not-true anecdotes aside, National Socialism might have had elements of socialism to it, but best I can read, it wasn't anything like the primary plank of the platform. I think sibling comment's explanation of a reaction to the Communism(tm) at their door might be most reasonable to explain the naming.
I really like your material. Do you have a youtube channel?
No, Facebook provides a social network with billions of users and businesses relying on it for communication. Facebook requires literal physical infrastructure that is distributed around the US and the world, with interconnections in between. The two massive data centers they just built near me make that pretty damn clear.

Perhaps you may not like the suggestion that I offered, but you’re minimizing what Facebook has become and what it takes to run at that scale.
I remember it!
For electronics or clothes maybe, for many household things Walmart had name brands and people know that. I dont go there (and I assume pay a premium) because I dont like places that treat customers as cattle, and would happily pay a few cents extra for a shopping experience that hasn't had every ounce or humanity stripped from it. Granted I'm in the minority and it's hard to even find places that treat their customers like people anymore.
Read up on what T+2 settlement period is. When you buy GME through Robinhood it is on hook for two days before it closes.

To do this Robinhood has to post collateral with the clearinghouse (DTC) during that time. As BME volatility exploded the collateral demanded of Robinhood skyrocketed.
Would love to hear more on the methodology that drives the chart. Is it raw number of mentions of a stock, or does it use sentiment analysis for positive/negative mentions of a stock?
I'm interested in running Python inside wasmtime. I think PyO3 would be useful. We could build a small Rust wasm binary that exports an "execute_python_script" function. This would finally be a way to run Python in a strong sandbox with memory [0] and CPU [1] restrictions. (In 1999, I asked Guido for sandboxing support in Python, but he refused.)

[0] https://github.com/bytecodealliance/wasmtime/issues/2273

[1] https://github.com/bytecodealliance/wasmtime/issues/2274
Another interesting reference from a few years ago: http://www.joshbarczak.com/blog/?p=1028

Also read the followups (1120 and 1197), as they go into considerably more detail about the SPMD programming model and some use cases.

The author is now at Intel working on ray tracing.
> have multiple venues to borrow if it is conventional collateral requirements for settlements

Collateral requirements have taken down brokerages far bigger than Robinhood.

> money market barely moved yesterday (no substantial borrowing)

Robinhood borrowing its entire market cap fifty times over wouldn't move the money markets. The U.S.-dollar money markets are trillions of dollars deep and global in scale. (To say nothing of the unusually-liquid times we're in.)
The authors of the article I linked to earlier came to the same conclusions. And so did the SPDK folks. And the kernel community (or axboe :)) when coming up with io_uring.
I'm just hoping that we will see software catching up.
Compared to the traditional "PI starts company with venture backing to commercialize their research" model what types of opportunities do you think are uniquely suited to your approach?
Robinhood is thinly capitalized, insolvency has never been far away.
It can take long on an old system, but that doesn't matter much [to me] when the IDE works fast throughout the day even when periodically opening and closing projects.
Whether or not you can lie to the police depends on your jurisdiction.

In most countries, there are laws against self-incrimination. If you have the "right to remain silent", like in the US, it may be illegal to lie to them. If you don't have that right, then you have the right to lie, because otherwise, you could be incriminating yourself.

IANAL, but it is a complex topic.
Thanks for the input! Sad to hear it didn't work, but I'm glad other people are trying stuff on their own.
I haven’t watched Cramer regularly in a long time, but unless he changed, this isn’t what he does.

He has an entertainment component, but fundamentally encourages people to educate themselves and manage a portfolio of stocks who choose to do so.

The mob bullshit we’re seeing now is just the new normal - brigades of internet idiots, motivated by profit or ignorance to run around like a drunken monkey. It’s no different than the political drama we’ve seen fomented by irresponsible social media like Twitter, Facebook, Reddit, etc.
It's the same if you read the Guardian. It's clear that the apparent europhilia of some liberal media was nothing but a political play. They pretended to support Europe only because their rivals, the Tory-supporting media, were against it.

Or pretended to be. None of those people believe anything at all.
Interesting chart. i'd suggest using the same colour for each bar as people will try to read something into the colours if you vary them.

Also, "interest" would be more accurate than "sentiment" in its current form.
> So my next question is, why is that?

Don't most brokers allow you to continue trading before settlement? (so someone has to put collateral for that)

I guess most traders would complain if they had to wait two days after every trade :)

Edit, maybe best is to look at the explanation from Money Stuff:

> But at some level of volatility things break down. If a stock is really worth $400 on Monday and $20 on Wednesday, there is a risk that a lot of the people who bought it on Monday won’t show up with cash on Wednesday. Something very bad happened to them between Monday and Wednesday; some of them might not have made it. You need to make sure the collateral is sufficient to cover that risk.
AstraZeneca is currently struggling to produce 2 million doses a week for the UK [0]. How does the EU expect to use UK production to shore up a shortfall of 49 million doses that they require in February/March?

The doses that exist in the UK only exist because of a manufacturing ramp up done under their own contract during the period of time that the EU was still negotiating a lower price. How does it make sense that a separate contract with AstraZeneca allows them to then get the doses produced for the UK re-allocated to another contract?

The Commission is only entitled to those doses that AZ have, after best reasonable efforts, produced for them under their contract. This attempt to grab doses only in existence because of another prior contract is a disgrace.

[0] https://committees.parliament.uk/oralevidence/1505/html/
I learned the last bit from here (Samsung Solid State Drive TurboWrite Technology pdf):

https://images-eu.ssl-images-amazon.com/images/I/914ckzwNMpS...
Text-only as opposed to encrypted text and images.

As far as I've been able to make out, document images are generated on the server and sent to the terminals as PostScript files. I've noticed at satellite locations the receipt printers hesitate for a few seconds before printing the barcode at the bottom, which tells me that either 1) it's taking some time to transmit the barcode image over the internet or 2) the server is taking its sweet time cataloguing the transaction in the document archive. Either way, I've gotten complaints about it from the users.
While it’s true that it’s a TV show, one of the aspects that makes it interesting is that the many immoral and self serving actions taken by the two main characters are often inspired by real life controversies or cases of financial crime or political corruption. With an attempt at splitting them into the two camps of “corruption outside the system” and “corruption within the system” personified by the two feuding main characters.
The set of all criminals includes a lot of cops, so maybe your angle here is just a poorly-considered one.
Clojure's persistent collection types include List, Vector, Map, Set and you have namespaced keywords. In general, I don't see how you can compare the approach of Rich Hickey and Clojure to PHP to be honest...
Tell HN: No, I won't enter my WORK email
What is it with this "enter your work email"? What do you care about which email address I use? There is only one reason to ask for it, to research the company and spam us.

I even saw services where I couldn't use my Gmail address, seriously? Yeah, I get it. You want to sell something, everybody does. But this triggers me hard.

I hope every service which uses this dark pattern to go out of business.
status.cloud.google.com now shows all green (the note about Cloud SQL has disappeared), but the errors continue, and my Cloud SQL console won't load.
The life of a Web Component – as a variable bucket
The problem is deaths caused by a lack of regulation are highly visible. But all of the deaths caused by burdensome regulation are harder to point to.

If we had started releasing the vaccine in August of last year we probably could have saved 100,000 lives.

Also the FDA doesn't regulate medicine. Only drugs. All the rest of medicine doesn't fall under FDA regulation (like surgeries).
Twenty years ago, I'd have been more willing to agree with that. I could see the US Gov't as some sort of sinister, hyper-competent (and even malevolent?) force that could definitely keep a secret like that forever from us, and "disappear" those that get too nosy.

Now? Not so much. Looking at who our "representatives" are - failed football coaches, regular conspiracy nuts - there's no way in hell that this "knowledge" would remain locked away for years, decades. Not with clowns like these in charge.
I don't think that it has anything to do with deliveries. They were not shipping vaccines when EU was negotiating the liability stuff. Instead, they put it on the contract that both UK and EU facilities are to be used and no other contracts to prevent EU's deliveries.
Do the molecular structure of spike protein of any seasonal flue change based on temperature?

As I understand it, we don't fully understand why seasonal flu is seasonal. The popular suspects are: A change in behavior of people. The decline in the amount of ultraviolet radiation (that damage or kills the virus). That drier air lowers the body defense against respiratory virus infections. That decomposition rate of viruses occur slower in lower temperatures. And finally the lover levels of vitamin D in colder climates.

Does this study provide any evidence in regard to any of those theories?
This is a good and interesting point. It's not like it's decaying while buried - where is the urgency coming from?
I get the high-level picture, I'm somewhat unclear about the details, and I'm not sure iff this even applies to Robin Hood, because they didn't confirm any of this. That's all irrelevant, though.

The top-level question here was, why people are angry at Robin Hood. My explanation is simple: they cut a lot of people off buying at the moment they wanted to buy, and provided no explanation. Any theory as to why they did that comes from taking explanations of other traders and the mechanics, not from anything RH said.

If you think what they published was sufficient explanation (and remember, the target audience is mostly regular folks with even less clue about stock market than I have), then why did RH's CEO get drilled by the news on the same questions I'm listing? Apparently the newscasters and their audiences also don't believe he answered anything.
Texas AG Says Issued CIDS to Robinhoodapp, Discord, Citadel
Anyone have any inside contacts at Google who have more information than their useless status page?

In particular, I have a high availability instance (HA!), with a bonus read replica. The main server and the failover server seem to be malfunctioning. The read replica appears to be fine, and I can access that to pull data.
Print, review, and scan is probably easier than screenshotting, if you have the equipment.
> The SIMT execution model is commonly used for general GPU development. CUDA and OpenCL developers write scalar code that is implicitly parallelized by compiler and hardware. On Intel GPUs, however, this abstraction has profound performance implications as the underlying ISA is SIMD and important hardware capabilities cannot be fully utilized

What? That makes no sense.

GPU processor cores are basically just SIMD with a different color hat. The SASS assebly simply has _only_ SIMD instructions - and with the full instrunction set being SIMD'ized, it can drop the mention of "this is SIMD" and just pretend individual lanes are instruction-locked threads .

So, an OpenCL compiler would do very similar parallelization on a GPU and on an Intel CPU. (It's obviously not exactly the same since the instruction sets do differ, and the widths are not the same, and Intel CPUs has different widths which could all act at the same time etc.)

So, the hardware capabilities can be utilized just fine.
well ok. Let them return all the money the EU gave them. And let them understand how AZ might have market access problems to the EU from now on.
> If you look into the screening tools, you'll realize many of the questions are actually about sensory processing, not just human interaction.

A person doesn't have to have abnormal "sensory processing" to have ASD, even though a lot of people have convinced themselves that's what ASD is all about. Abnormal sensory responses is DSM-5 criteria B(4). You need at least two of B(1)-(4) to be diagnosed with ASD, so a person can meet the diagnostic criteria without abnormal sensory responses, if they have at least two of criteria B(1)-B(3) (along with criteria A,C,D,E).
Ventajas y diferencias entre programas en la nube y on-premise
Un artículo que explica muy claramente las diferencias entre software cloud y on-premise,
40nm is a quite recent move for MCUs, and the mainstream majority can still be anywhere in between 90nm, and 180nm.

Only very few, top of the line MCUs ventured to 40nm, like ESP32 which had no other option because of WiFi eating gates, or ST's MCUs with 3D accelerator on board.

Problem for MCUs is that MCU specific features start to cost too much more in IP, design time, yields, and fab service cost below 90nm. Things like embedded flash, per-model mask memory, SRAM, non-CMOS cells, RF, and other analogue circuitry.

Below 28nm conventional eFlash, and many other things stop scaling, and only proprietary solutions are on the table at the moment.
Oumuamua changed velocity in an unexplained way. This was not expected, but there is an explanation that the object is outgassing and it increases it's velocity.

This, along with strange shape made the object interesting for ET speculation.
Interesting. Curious: how is that any different than if owlmail gets leaked?
The worst part is that those animations get replayed when scanning back over earlier parts of the page.
What is the idiomatic way to have data in an enum in PHP, aka sum types? Sum types in languages like Rust or Haskell or OCaml can have data associated with them. You'll get an error before runtime if you assume a field is available when it isn't.
Here's my previous comment: https://news.ycombinator.com/item?id=25738200

https://bmcinfectdis.biomedcentral.com/articles/10.1186/s128... [2019]

"In summary, despite the various mechanistic arguments about which organisms can be potentially airborne and therefore aerosol-transmissible, ultimately, the main deciding factor appears to be how many studies using various differing approaches: empirical (clinical, epidemiological), and/or experimental (e.g. using animal models), and/or mechanistic (using airflow tracers and air-sampling) methods, reach the same consensus opinion. Over time, the scientific community will eventually form an impression of the predominant transmission route for that specific agent, even if the conclusion is one of mixed transmission routes, with different routes predominating depending on the specific situations. This is the case for influenza viruses, and is likely the most realistic."
They re-opened buying this morning, yes.
Was that an accident/mistake? If so, the fines may be (should be...) much different in this context, which is clearly not a mistake.
It takes a certain bravery to post any opinion that is critical of the EU on HN. Always a danger to your karma :)
It's a complex product (the AstraZeneca vaccine is a virus that stimulates the body to produce a protein that is present on SARS-CoV2). Maybe sharing the IP more widely would have been the better thing to do, but it wouldn't have resulted in it being 'produced easily'.
How Traceroute Works (Building a Movie Scene 'Trace' Map) – [video]
How to create a wiki for your remote company
How many people have died from drugs getting approved later or not being able to afford drugs due to the high price of drug testing?

Or from drugs not being researched or approved because it's too expensive to do an fda trial?
D'oh! Killed by a false friend [1]! Thanks.

("Container" is both "container" and "dumpster" in Swedish, and it's pronounced pretty much as "container" in English since it's a loan word, but the meanings have diverged, I guess.)

[1] https://en.wikipedia.org/wiki/False_friend
You sound like the "UK media" is one thing. The Guardian, FT, etc are staunchly pro EU and have been endlessly pointing out the problems.
Maybe for you. Not everyone is so mechanically inclined, or can understand instructions well.
I don't know if that's stock values or just cash. Even if it is, it would be a huge hassle...
> Serious question, why would you not?

My gut feeling is that RH is designed to maximize the number of trades people make, as a core "engagement" metric. A few examples: 1) The UI is designed to induce in the user the feeling that something is happening, always - the graphs are not to scale, so small swings in price appear bigger than they really are. 2) The "Top 10" and community trends feed will trigger FOMO, and again will likely result in more day-trading.

In all, RH has too much "clutter" and noisy notifications for a buy and hold investor. Most platforms are now commission-free.
Agreed. In addition to my belief that they lack authority, I know that it would be extremely uncommon for a cop to be able to provide a notarized document that would protect later when the cop denies his verbal grant of immunity.
This is extremely specific to jurisdiction; I would hope that anyone who responds with advice here will clearly state which jurisdiction they are referring to.
Yeah i think most people simply don’t want to try, or they are certain they wouldn’t be able to.

But even if the instructions are very clear, videos could make it more approachable to people.
Robinhood is still severely limiting trading
Because some desks are better than others (the ones on the fourth floor by the windows overlooking the lake come to mind). Also, they don't want people setting up shop and claiming one desk as their own. If I show up early and sit at the same desk all day long everyday, after awhile everyone will just see that as my desk.
Lying is human nature. You have to work around it.
IRS never calls, it was a scammer. https://www.irs.gov/newsroom/how-to-know-its-really-the-irs-...
Completely agree, Socialism is a very broad church, some interpretations are more hardline than others.
24 hours ago people never heard of a clearinghouse for trades. Since it's not possible for them to be ignorant, the clearinghouse explanation cannot be believed. Only explanations using terms like hedge fund and collusion which were known prior to yesterday will be believed.
New AMC Shareholder
What We should do next, is to make AMC a great company, not just hold the shares, we want the company to success, to become tesla of the entertainment industry, that way we can really beat the shorter.
I do not think PHP is a good language to use in a project.

- dev recruitment is hard.

- dev retention is hard.

- hard to find people that write clean, modern, performant PHP

- it is PHP, with everything that it entails. It does not enjoy the best reputation as a language.
LA County Says No TVs for Outdoor Diners at Local Restaurants
Solo V2 – Safety Net Against Phishing
Yup. It is just the raw number of mentions. How many submission/comment has the term $GME, $AMC, or ect...
> If you purchase a server and stick it in a co-lo somewhere, and your business plans to exist for 10+ years — well, is that server still going to be powering your business 10 years from now? Or will you have moved its workloads to something newer?

Which, if you have even the remotest fiscal competence, you'll have funded by using the depreciation of the book value of the asset after 3 years.
It would minimize the python surface required to be covered with type-hints and mypy. If possible, one could simply point django to the modules generated from rust.

I'll give it a shot tonight and see how it goes. Now I'm curious.
So the fact this looks as one would expect without nefarious manipulation is proof of nefarious manipulation? Your argument is still a little difficult to follow.
Are they really "escape hatches"? Shared mutable state is as simple as `Rc::new(RefCell::new(x))`, or `Arc::new(Mutex::new(x))` for thread safety.
I was surprised to find out how slow strptime() can be. I was working on a data-focused project that was finally starting to slow down from the growing volume of data. I was looking at river heights over time, and once I hit about 140,000 data points the project got slow enough to make some profiling and optimization worthwhile. I was quite surprised to find it was spending more than two full seconds just running strptime(), out of a total execution time of around 15 seconds.

I ended up looking at a bunch of different ways of processing timestamps in Python: strptime(), string parsing, regex, datetime.isoformat(), NumPy, Pandas, and more. I got a 46x speedup using datetime.isoformat(). Other approaches got anywhere from 4x to 40x speedup, and a couple approaches were an order of magnitude slower than strptime().

My takeaway was there's no substitute for profiling the actual code you're running, and focusing on the specific bottlenecks in your own project. I wrote this up in a blog post if anyone's interested, "What's faster than strptime()?"

https://ehmatthes.com/blog/faster_than_strptime/