skysight-inc/HackerNews huggingface dataset:
Interesting. I had so many issues with the SC daemon on Mac that I eventually just gave up and reverted to keeping my local ssh key in ~/.ssh/ with a passphrase on it.
In RSA you need to pick primes, if you pick random numbers RSA doesn't work. But the elliptic curve public key systems work with more or less arbitrary numbers so you can just use any random number as a key. Some magic numbers like zero may not work depending on the algorithm, but

(a) you can exclude those explicitly with a tiny amount of effort

AND

(b) probability of picking any such number for a 128-bit key is insignificant
Yeah I meant the container i.e. the end result, not the actual image. I'm aware of layered images.
The default ad-blocking functionality won't block an attack like this. You'd need a more robust blocker like NoScript.
Most of the security and privacy concerns come from not bothering to press few buttons on a smartphone.

A smartphone that would be in your hands or pockets anyways.
Its activism + old fashioned democratic politics. At least in the US. The suffragettes brought attention and then they mobilized a political coalition. Organized labor agitated but it was though the ballot box that the 40 hour week job safety were granted.
Do you think that will change with introduction of modules? Would that be a feature compeling enough to make people move to newer versions of the standard?
This is so dumb, I have no words. Google has the cleanest energy mix in the cloud business, and the strongest carbon neutrality commitments. If anything, their participation in these contracts will only reduce the carbon footprint compared to the alternatives. They're also not the only cloud provider, so if they don't go for it, Amazon or MS will be quite happy to oblige, spewing tons more CO2 into the atmosphere.
I remember when Intel tried to trademark the number "80". Thankfully they lost that one.
Summary: Robinhood's margin system is completely broken and allows for practically infinite leverage. One guy leveraged up to 1'279'550 USD on a 4'000 USD deposit.

Current "leaderboard":

https://www.reddit.com/r/wallstreetbets/comments/drt5tr/guh_...

And an outbreak of memes on Reddit:

https://www.reddit.com/r/wallstreetbets/comments/dr4iem/cont...

https://www.reddit.com/r/wallstreetbets/comments/drxcpw/this...

https://www.reddit.com/r/wallstreetbets/comments/drsxau/the_...

https://www.reddit.com/r/wallstreetbets/comments/dr3eki/say_...

https://www.reddit.com/r/wallstreetbets/comments/dpwa5v/in_l...

People wondering what is Robinhood even doing, and that it's in violation of the federal law:

https://www.reddit.com/r/wallstreetbets/comments/drmr6y/how_...

https://www.reddit.com/r/wallstreetbets/comments/drn8gf/this...

https://www.reddit.com/r/wallstreetbets/comments/dr6gus/robi...
The original GPT-2 blog post has famous demos of the 1.5B model: https://openai.com/blog/better-language-models/
(which is great if you're looking for one, BTW!)
The question is slightly ill-formed. I understand why you'd ask it, but there are a couple of possible answers, none of which work directly.

- No, because a black hole has nothing underneath the event horizon. (This is true from the perspective of anyone outside it, at least to a first approximation. Gravity is affected by curvature, and whatever might be in the centre cannot be the cause of the event horizon, except historically, but the event horizon is stable in itself. It's a self-sustaining cascade of space-time.)

- Mu, because once you pass the event horizon the extreme warping of space-time turns "inwards" into "future", making the centre of the hole a point in time, not space. This makes it difficult to determine what the question is asking.

- Maybe, because singularities probably don't exist. There should be something in the centre, which might evolve over time. It might just be a faster-than-light cascade of space-time, though. We still can't answer your question, because we don't know how to accurately model the 'singularity'. (As anything other than a singularity, and that's essentially just the math giving up.)
see https://news.ycombinator.com/item?id=21455027
12 km to be precise, of the earth’s 6000 odd km radius. That’s all we could accomplish in entire human history.

https://www.smithsonianmag.com/smithsonian-institution/ask-s...
It's radiation pressure from the pulsed beam of light moving the tiny microphone.

MEMS microphones are tiny capacitors that are vibrated by sounds. In section IV.C of the paper, they test whether the effect is mechanical or photoelectric, and determine that it's acting via mechanical vibrations, since the effect is stopped by gluing the microphone down with a transparent bit of glue.

Think of it as a tiny solar sail-- they're hitting a very small piece of metal with a lot of photons, so even minor deflections are translated effectively.

"The diaphragm is a thin membrane that flexes in response to an
acoustic wave. The diaphragm and a fixed back plate work
as a parallel-plate capacitor, whose capacitance changes as a
consequence of the diaphragm’s mechanical deformations as
it responds to alternating sound pressures. Finally, the ASIC
die converts the capacitive change to a voltage signal on the
output of the microphone."

"As can be seen, the modification decreases
the amplitude of the signal detected by the microphone, and
the signal after the glue application is less than 10% of
the original signal. We thus attribute our light-based signal
injection results to mechanical movements of the microphone’s
diaphragm, which are in turn translated to output voltage by
the microphone’s internal circuitry."
NX Bit
WeWork Isn’t the Only Stumble for SoftBank’s Vision Fund
Foreign companies paid fines because they still wish to operate in the EU. If they were willing to give up on that then they wouldn't have to pay anything. Eg a Chinese company could collect and abuse as much data as they wanted. Once they get caught the EU can levy fines on them, but the company can just choose not to pay, because the EU can't reach into China.

The EU can't force a foreign company to pay, just like China can't force an American company to pay. Or am I mistaken and there's some international agreement that allows the EU to force them to pay up?
It helps a lot if the university you're coming from had a reputation for difficulty and grade deflation. Academia is incestuous enough that people will usually be clued into that.

Barring that, having excellent rec letters and GRE scores, having been published or done research in a lab, having written an undergraduate thesis etc can all help provide signal that you'll make a good candidate for the department you're applying to. I don't know much about EE departments, but generally grad school admissions will be more holistic and thoughtful than undergrad admissions.
>The town I'm in only has a population of 120k so I don't expect to be able to find niche items

This caught my eye: is 120,000 people considered a small market?

I grew up in a town of 5,000, work in a small city of 50,000 (which has plenty of amenities, including multiple independent outdoor sports stores) and now live in a village of 200 people.
Well, economies of scale and significant pressure on suppliers ("Do you want your product in the largest retailer in the world?") to reduce prices, even at the cost of quality. I've noticed many of their high-volume products are lower quality than the same brands at other shops.
First Biometric YubiKey
Knowing T-Mobile and the full-of-shiteness that I possesses them, they can argue this about every market. I am.sure they own a canteen somewhere so there goes the food industry, and they probably sponsor some major team so there goes sports equipment and so on and so forth. Greed doesn't stop.
I'm glad this hasn't turned into (so far) the usual "c++ is dumb" flame fest.

I've really enjoyed programming in c++17 for the last three years (I had the luxury of starting from an empty buffer) and find the language pretty expressive. If you are able to use it as a "new" language, ignoring its C roots and features that exist pretty much just for back compatibility, it's really quite expressive, powerful, and orthogonal.

I'm actually pretty glad the c++ committee has been willing to acknowledge and deprecate mistakes (e.g. auto_ptr), to squeeze out special cases (e.g. comma in subscripting) and to attempt to maintain generality. Conservatism on things like the graphics standard is reducing the chance of the auto_ptr or std::map mistakes.
The GPS satellites have multiple general relativity effects on their definition of time. Since they're moving so fast, the internal clocks on the satellites move slower than Earth (about 7 microseconds a day), while the decreased gravity on the satellites causes the internal clocks to speed up compared to Earth (45 microseconds a day). Net effect is a speed up of 38 microseconds.

Also, the on-board chips are pre-programmed to take into account the relativistic effects and compensate when doing their calculations.
This article led me down a Wikipedia trial until this interesting defense against trademark infringement:

https://en.m.wikipedia.org/wiki/A_moron_in_a_hurry
because spacetime is curved by mass the matter in the centres of the Earth and Sun computes at a slower rate than matter at their surfaces so that from our point of view the centres of the Earth and Sun are younger because their clocks have ticked fewer times compared to their surfaces
I totally agree, updating compilers is painful, and can be hard even for smaller projects. But for projects that went through that and actually got the newer compiler working with the C++11 code, I haven't yet seen anything that breaks compilation when then switching the compiler flag to C++14 mode.
Indeed, they should be worried about their own skin. The SEC should shut down their operations immediately, at least anything that involves margin. Like today. It's not even about PR, this is a pretty bad violation of federal law. We don't know how many people may be using it.

This is the financial equivalent of forgetting to check password on a login form. It's that stupid.
That equation is definitely changing with modern PV prices and heat pumps: https://www.greenbuildingadvisor.com/article/solar-thermal-i...
Meanwhile, I am deeply concerned about modules, as it seems like the kind of feature that is going to massively harm build times by making it much more difficult to do truly independent distributed builds (which right now is pretty easy with C/C++ due to its separate compilation and extremely explicit inter-file dependencies).
I like the attention to detail this feature reveals - in particular, how if you're in Stripe test mode in browser tab X and type `stripe login`, the cli will open a page in browser tab Y that gives you a test mode webhook secret, without prompting you to select a mode again. Very intuitive.
all futures brokers have to do this to extent, and theyre all good things.

you can day trade futures (ignoring newer cme e micros) with a $500 deposit and its an awful idea for a plethora of reasons, but grown adults do it day in and day out blowing out over and over. its clear this leverage needs a little more oversight.

i will note however, i found myself over leveraged in an options position in august 2015 using TDA, and my account went very negative as the platform went completely down for the entire day and no automated or human risk liquidated it on their side..
Fraidycat – Follow from Afar
Very impressive. From an engineering standpoint, Stripe knocks it out of the park.
Fitbit exploded on wrist leaving with 3rd-degree burns
I've had bad experiences with their garage sales, buying products that say "too heavy" or "didn't like fit" but are just broken. Like at least give products a look over, especially electronics that can't easily be tested by a customer in store. Spent like 3k one year at REI, then was sold broken products that they didn't take back. Dividends don't accumulate on sale products so their pricing isn't competitive - I think once the bubble popped for me I realized REI isn't special
I think all of the jobs I've left since I graduated College 15 years ago were because of managers, except the very first one.
There's a little bit of smoke-and-mirrors going on here. Yes, the same effect happens on/in the sun (in fact it's even more extreme because the sun's gravitational field is much stronger than earth's). But no, it's not quite correct to say that the center of the sun -- or of the earth for that matter -- is "older" than the surface because the material in both bodies moves around. If you put a clock at the center and another synchronized clock at the surface and left them running for a few billion years and then compared them, you'd see a difference. But of course there are no such clocks. The only "clock" is the material that exists in both locations, and in all cases this material moves around over time. On earth there is some stability because heavier material sinks towards the center and more or less stays there, while lighter material floats to the surface and again more or less stays there. But the sun is made almost entirely of hydrogen and helium and that material is constantly being moved around due to convection.
I haven’t done C++ a while but I really like where this is going. It’s a complex language for sure but I always liked about it that whatever needed to be done the language would not get in the way. There is something to be said for working in the language your OS and a lot of other libraries are written with. You know that you have high probability of achieving what you need to do. It may need a lot of work though.
don't forget prosper and lending club. although non-QM loans generally require 20-30% down.
the only thing that seems certain is that thugs will burn things down.
Are we talking 18-19 yr old teenagers? Because anything less and they shouldn't be able to have an account on their own. And of they do, then Robinhood would be sol. You can't enforce a contract on a minor. (although, interestingly, a minor can enforce a contract on an adult)
Look into WalMart's operations in Mexico, where they've bribed officials into deliberately overlooking protective legislation for historical areas, just so they could get visible placement of stores to catch tourists.

Amongst many other not just questionable but reprehensible moves behind the scenes in many, many places. If they can find a way around the system, they will, and go beyond to bribe people into staying quiet about it.

Even after hearing how bad Amazon's fulfillment centers grind people down, I'd still buy from them before giving WalMart anything.
Oakland, Sacramento, San Jose mayors unite behind plan to buy out PG&E
I visit /r/wsb pretty frequently, so I would like to add two bits of information that might change your mind.

1) The user /u/ControlTheNarrative (CTN) made plenty of posts before losing the money where he made it very clear he knew exactly what he was doing. He had a post where he spelled out exactly how to gain the extra leverage and that his "personal risk tolerance" meant he could handle 25:1 leverage. Additionally, his response after the fact was something along the lines of "once I earn another $2000, I plan on doing this again". This kid didn't just click a wrong button and end up with the extra leverage, he was well aware of what he was doing.

2) Take this one with a major grain of salt, but based CTN's comments in the original posts and some comments by other users, it seems like this might not have been the first time CTN has used this exact trick to blow up an account. When the video was first posted, multiple commenters mentioned that he'd done it before and some of CTN's comments after the fact seem to hint at that. Again, take this with a huge grain of salt since I have nothing concrete to back that up.

The last time RH was in the news for some user losing way more money than they had (IR0NYMAN) I actually felt for the user a little bit and can understand why RH (supposedly) didn't go after the money after the fact. IR0NYMAN was creating box spreads, which can be a legitimate strategy, although they are very hard to find a situation where you can make money with them. That user stupidly didn't understand RH's rules around options exercise which is how he got screwed, but had he been able to hold all his contracts to exp (like European options allow) he actually would have been fine.

I can understand RH writing off IR0NYMAN's debt because it didn't seem like the user truly understood what he was doing, but this one feels different, IMO.
This is, of course, assuming that the very people implementing the things people here think they should protest don't think those things have value and should be implemented.
Good point.

When I used a Yubikey as a Smartcard it did in fact prompt for a passphrase. But that was via PKCS/SmartCard method, not U2F.
I seem to remember it was going to be called this originally but it was a problem because the main commercial broadcaster in the UK is called ITV.
I think that is massively trivializing the technical complexity of engineering a system that powers millions of rides, food orders, freight orders, etc globally every single day.

As an example, look at how they've improved upon GPS in urban areas to take into account satellite visibility to determine which side of the street you're on: https://eng.uber.com/rethinking-gps/

They invest tons into just solving small problems like that. Not to mention all the open source work they do, ATG, etc.

Then consider that Uber has to have pretty big operations, sales, marketing, and support teams in each market they operate in. It's not just a handful of engineers working in SF. Their massive costs considering their scale makes total sense to me. This is not to conclude one way or another whether or not they are a viable business.
You can't use HN like this. Thoughtful critique is welcome; shallow dismissals, name-calling, and personal attack are not. The rules are here: https://news.ycombinator.com/newsguidelines.html. They're not hard to follow if you want to.

We've banned this account for violating the site guidelines. Would you please stop creating accounts to do that with?
> On the other hand, there aren't really any changes in 14 and 17 that break compatibility with code written in 11, at least that I'm aware of.

auto_ptr has thankfully be removed, but if you have legacy code that uses it it won't compile under C++17. Of course if you have code that uses auto_ptr you should fix it, but realistically nobody has the time for that.
Futurelearn is worth checking out, I'm happy with all the courses I have taken there. It is so cool with all the different types of courses you find when using several platforms, I want to learn something about everything and everything about something.

I also found a link to https://www.mooc-list.com/ in my bookmarks for courses, not sure how updated it is
It seems like it would be the opposite:

- If you are smack dab in the middle of the Earth, although you'd be mashed, gravitational forces should be equal in all directions and therefore cancel out to zero.

- Ergo, if you are on the surface of the Earth, gravity should make your clocks run slower than in the middle.

What am I missing that makes this untrue?
But that is the exact opposite message that Robinhood wants to send (even if it is the correct message).
GDPR might apply and the EU can levy fines on foreign companies, but that doesn't mean that a foreign company has to pay like a European one. The EU can't force a Chinese company to pay if they are willing to give up their EU business. That's the problem - you can't enforce it where you have no legal jurisdiction.

Or do I have it wrong and that there is an enforcement mechanism that can make a Chinese company do things the EU says?
Has this been fixed yet? It seems like a company-ending disaster for Robinhood if the bug remains exploitable now that it's on Bloomberg.
Battery life seems promising too! (They aim for 10 days.)

This might actually turn out more useful than many of the boutique smartwatches.
Nothing to do with money, pack a picnic and find a charger near a pleasant park. The point is there are all sorts of options to spend your time for 30-45 minutes. Grab a laptop and work from your car. Go for a hike. Walk the dog. Whatever you were already going to do out the house on the weekend once every fortnight.
200-300 basis-points means 2-3% (for the non-finance types).

So your 6% loan is now a 9% loan.
likely and unlikely exist in different forms as compiler extensions for a while. There is code where they indeed help compilers to produce slightly better code for the hot path. Good use typically involves lots of measurement as developers are often wrong about the impact and about what the real flow is.

What kind of things can the compiler improve? For instance it can arrange the code in a way that the instructions of the hot path are directly behind each other, whereas the unlikely case jumps further away. Or it can arrange code a bit to help the branch predictor.
alternately, you can use tmux which lets you detach sessions, rotate panes, and configure them in whatever arrangement you'd like! Would highly recommend it :)
The point could be that window in Windows means an area of the screen dedicated for an application to display output and receive input from the user, and such meaning is generic for operating systems.
This observation should be signal-boosted.

AMP makes a lot less sense from the point of view of people who never touch the Internet via sub-1MBPS connections and sub-5 second latencies.
Yeah, our (mostly) ban on shared code is a major reason we end up with a lot of services; there's even service.business-day which tells you if a day is a working day
We no longer measure time as laps around the sun.
iOS 13.3 Beta (17C5032d)
Scale with Alexandr Wang [audio]
Are you implying that the Googlers involved are doing this to advance themselves? Yes I know what virtue signaling is.

Do you have evidence for that? To use the cliché, your statement seems to show more how you see the world than how they see it.
Prime mortgages hover around ~3-4.5% currently. Non-QM is ~5.5-8 percent, looking at a non-QM lender's rate sheet right now (dependent on loan to value, assets, and income). So about what you'd pay for a HELOC or higher rate home equity loan. Even with garbage credit you're not paying 9% on a property that you've got some equity in, but you're not getting a mortgage with only 3% down (nor should you; go rent for a year or two with a landlord who will report positive payment activity to CRAs and then go get your federally backed FHA loan with only 3% down).
I don’t understand why they don’t do more about ABI. Compared to C# or java it’s such a pain to share code in C++. To me this would open up a lot of opportunities to create more libraries.
> buys her electricity via a key not so much.

What does "via a key" mean?
People totally blame C (and C++). There's entire classes of use-after-free and buffer flow errors not possible in other languages, which is what leads to people advocating for Rust or Go (or ADA for that matter, though it's obviously not popular anymore).
I almost missed the followup to this, which is here:

https://www.sparkfun.com/news/1430

Apparently Fluke "allowed" SparkFun to distribute the multi-meters in question to educational and charitable organizations, rather than just destroying them. I guess that's as close to a nice resolve as you can get without Fluke just completely dropping their action.
This looks like very idealistic approach. The world does not revolve around perfectionist's wishes.

As for "...means it hasn't been maintained for 20 years..." - the OS did maintain the old API's and the way they behave to make sure old software that uses said APIs still works on new OS. Does not mean that the new APIs were not developed.