skysight-inc/HackerNews huggingface dataset:
I had one of these brainteaser questions in an interview once, and I liked my mathematician friend’s answer to it the best.

Q: Given infinite setup time and infinite money, how would you fill the inside of a 747 with ping pong balls as quickly as possible?

A: Define the inside of the plane as the exterior. Now, by definition, all ping pong balls are inside the plane. QED.
https://linkerd.io
How to choose the right mobile app for your GitHub projects
Not quite - best practice is to continue the initial setup - ie, "we've sent you a link, please click to activate your account".
Except if the email address is already in use, you email the address and let them know that. That way they only leak that info to the owner of the email address - and they can include a password reset link too.
Project Python – Free Interactive Book That Introduces Python Programming and CS
it would be interesting to see what these 141 companies be able to accomplish if combined
She did generally have good access to preventative care once she had a condition. Since she generally always had something wrong with her, she generally always had access. I see your point though.

I'll also say that people like her are why preventative care isn't always what it's cracked up to be. There are plenty of people like her with conditions like diabetes(which she also developed due to her sedentary lifestyle and poor eating habits) who willfully disregard their doctors' attempts at moderating their behaviors.
Stack Exchange Has an API That Returns the Details for All of Your Access Tokens
At least in the United States, I see exactly 0 chance of this happening in the current cultural and regulatory system we operate under. The average American worker is just lucky that they even get 2 days off during the week at this point.

If I found a political candidate who advocated for mandatory vacation of 4 weeks or more per year, and/or less work-hours per week, I'd give them my vote in a heartbeat. A change of that magnitude for the average worker would reap incredible social benefits for all of us.
Show HN: Color Range Explorer. Interactive scale for exploring color-mapped data
Show HN: List of Unlimited Services Companies
> . the cat litter I just purchased is $17.89 at Amazon, $13.49 at Walmart.

Isn't extra $4 for shipping? You are comparing store pickup to something shipped to your home.
Does the job involve high stress and a challenging social situation?

Doesn't sounds like somewhere I want to work.
TLDR; "IPv6 deployment has slowed in the past 12 months. Why? We're not sure"
It's definitely common in gaming-focused apps, but not in the general or business focused apps like Skype, Slack, Teams, etc.

We use Teams on our team, and my current PTT technique is to Ctrl+Shift+M to unmute and mute every time. Très annoying.
It seems like, relatively speaking, Iceland sailed through this by acting like capitalists: they let the loans fail, consumers took a haircut, and bankers were sent to jail. Is this a worthwhile comparison or were there fundamental differences that I (very likely) don't understand?
Could have prosecuted and imprisoned for perjury dozens if not hundreds hundreds of people offering false affidavits claiming personal knowledge of loans they knew nothing about in support of foreclosures.

You could have prosecuted and imprisoned all of MERS's officers for racketeering.

The first happened in teensy numbers, the second, not at all.

(copyedited)
Satisfacton from saying this during an interview at Google would be worth not getting the job:)
Sorry, but what a tired and boring argument. It's not incorrect though, just tired.

It's not a "war" it's prohibition, and prohibition never works for thing people will DIE for. From what I understand the war on drugs was started by Nixon because he hated hippies (among other reasons).
I'm wondering why this was downvoted - I'm really curious, too. In particular, what they mean by "first getting started", and whether "home" means a house or something like an apartment/condo.

From my perspective they skipped a step or two and some of the difficulty came from that. I started by renting an apartment with a friend and saved up enough for a down-payment on a normal loan in a condo over two years. It's been five more years since then, and only now would I consider a house (though don't really want to move yet).
Since the expenses of the department greatly exceed the revenue collected by the tax, arithmetic indicates that it has to be funded by some combination of the general state, and federal tax pools.
Tesla mitigates car-stealing key fob problem
Depending on the hedge fund (I'm thinking of a few in particular), there isn't really a route to practicing these problems just to get better at the interview. You'll be asked to talk about your own research in the domain and you'll work on re-deriving (very small parts of) the research of other members of the team with guidance and from first principles. Regardless of applicability to the job, if you're asked to prove a theorem on the board you either know it (and have known it for a while, and in depth), or you don't. In that sense they're not brainteasers to practice a particular formula for, like solving an algorithms question or probability estimation.

That being said if you're just talking about mathematics and statistics problems the more mainstream hedge funds like to ask their quant candidates, read Crack's Heard on the Street, Joshi-Denson-Downes' Quant Job Interview Questions and Answers, and Zhou's A Practical Guide to Quantitative Finance Interviews.
You should try a CBD strain such as AC/DC. With almost no THC, it may produce the effects you desire with minimal psychoactive issues.
I'm more concerned about criminals using such proposed credential recovery procedures to rob me. Thanks however for sharing your views about how we should all trust the government without question.
Some agency might want to do that. Could have just paid Zerodium to make such a strong statement.
Grow these on top of hills and mountains, then use the tech from the other thread[∆] to lower the blocks and generate electricity too.

[∆]https://news.ycombinator.com/item?id=17958700
emailed them about it, here's the response:

> Thanks for your email. We are aware of issues with our HTTPS and currently trying to upgrade our systems and the security certificates. Unfortunately, it will take us a while until all the testing is done, but hope to migrate to new environment by the end of this year.
Someone correct me if I'm wrong but won't this put Verizon in the opposite situation that they're in now? Doesn't Verizon have coverage in most places because they were able to build early and keep their old CDMA towers in place? With the change to 5G aren't all the LTE/GSM carriers now in a better place to update to 5G? Won't this actually cause Verizon to require huge network and infrastructure upgrades?
Yep, the EU saved a small country like Greece because the alternative was too horrible to bear.
Wow, I'm sorry but I think that's terrible for the candidate. You have a job description and you shared that with them. You're basically hiring the most talented bullshitter.

Very few people will know exactly what they want to do in the next few years. There is only what you as the employer need to get done and what they as an employee are willing and able to do.
Here in the US we're told the banks were to big too fail, the banksters too powerful to jail.
I tried [0] to stir one of these up for coral.co.uk which also forces (via a downgrade redirect) insecure login over http. Unfortunately my tweet didn’t get much attention, although I did get the “Don’t worry! You can login without any doubts!” reply from Coral.

Not sure if it’s still the case (think they recently did a redesign and hopefully fixed it; I’ll check tonight). If it is, I would appreciate some more attention on this issue!

[0] https://mobile.twitter.com/milesrichardson/status/1017195538...
The answer is to create laws that allow developers to build more housing.

The price of housing in many high cost of living is completely unrelated to how much it cost to build the apartment building.

Or in other words, the actual construction of the building is the easy part. It is the government that is getting in the way of reduced prices
A list of resources to get your first users/signups
Jesse Leimgruber from NeoReach put together the following ranked list of ~300 places you can submit your product at launch: https://docs.google.com/spreadsheets/d/1leGn6nlu96pIJ68dw3lzeKRRiIiC7jG2MCgEhMRiSZI/edit#gid=0

(stolen from YC Startup School's forum)
"I define “bio” at YC as anything enabled by biology and anything in healthcare."

Is that a common definition? I haven't consider healthcare companies as bio.

I'd be interested in the list of the 141, unsure if I'm the only one.
There was the example of the company that saw the BBC article and was scared into compliance. Perhaps if he keeps up the approach of keeping the shaming events rare and brutal, it can be enough of a psychological effect to corral other companies into compliance until there are only a few cases remaining, at which point you could just go after them individually without creating a news burnout.
Honestly, they are screwed once people start using ali express instead. I know shipping times is a bit long, but I'm sure there will be some solution to this in the future. I wouldn't be surprised they built their own fulfillment centers on the continent.
Sure; to be clear, I'm trying to point out what I think your parent is getting at. I don't necessarily agree.
Sure I get the gist, I've heard this reasoning quite a lot and I'm not condoning or condemning it. I was specifically interested in hearing if the OP thought the math they asked him about was relevant to the math actually done on the job. In my experience, it isn't really (except insofar as it might be the same field, from a 30,000 foot view).
This will start changing as technology improves. Specifically it will change as applications emerge where these things provide a concrete economic benefits that offset the risk. Basically when that happens, money starts flowing to regions where the legislation is more favorable and more innovation happens. At some point there's a tipping point and legislation adapts due to pressure of local parties missing out.

E.g. the agricultural sector in the US has enormous power on this front. They already use lots of drones as well as e.g. helicopters to dry cherry trees, crop dusting planes, etc. That business is quite expensive and an obvious target for replacement by drones. When technology gets to the point where legislation is the only real obstacle, there will be lots of pressure for legislation to change. I'd say that's a question of when not if.

What will need to happen on the safety front is for drones to play nice with regulated airspace and controllers/pilots in the area. Mostly drones currently don't have stuff like ADS-B or transponders on board. Given how cheap and light stuff like that is getting, I think it's a matter of time before there will be some drone specific versions of that that allow controllers to monitor any drone activity in their area. I imagine stuff like that won't be optional for any commercial operations. Mostly drones are a danger only because they stray in the path of other planes. If there's collision warnings, controller advisories, etc. things get a lot safer.
I think it's more about measuring enthusiasm for problem solving. If you sulk and roll your eyes at a difficult math problem, what will your demeanor be like every day in the office when your job involves quant analysis?
`prophet` is a really good library for time series forecasting. It's especially useful when speed matters where you create an Rshiny forecasting tool. It's not always the best result though. Sometimes a simple exponential smoothing could give a better result too.
Not an exact answer to your question, but see this post on the Bogleheads wiki regarding Vanguard - https://www.bogleheads.org/wiki/Vanguard_safety
Speaking as a fellow Brazilian: so account for it beforehand, in the same way you should account for 13th salaries and other "hidden" worker rights, which are liabilities in the accounting sense.
It was Fannie Mae, the large semi-government housing lender, that was strong-armed into supporting sub-prime lending in a big way. Again for good reasons. This normalized sub-prime lending for others.

Not everything has an evil agenda behind it. Sometimes the reasons are fairly ordinary and boring.
Obviously my statement was extremely subjective - although I am far from the only person holding this opinion. However in my experience the reason all wind players play Reicha is that there's very little competition in the Romantic era. A handful of Danzi quintets (they're okay), a few gems from Klughardt, Foerster, and Taffanel (all of which I think are superior to the Reicha quintets, but they're also at least 50 years newer), and I haven't found much else worth playing so far. If you're a student or amateur, or playing for a relatively unsophisticated audience, of course you're going to end up playing Reicha at some point.
NatWest goes a step further and asks you to enter (for example) “the 1st, 5th, 8th and 9th character of your password.”

I saw a comment once explaining why this might make sense to prevent replay attacks. But it seems awfully absurd.
Consulting actuary here. I majored in Econ, started taking exams after I graduated.

I don't really see the value in the actuarial degree, but I do see the value in taking the exams. Some people might be frustrated with their place in a given company, but overall it is a great career. One of the keys is to stay up on current tech and always be learning new things. It seems pretty easy to get stuck into a position where you are making baskets all day.
> It's probably getting downvoted because they're trying to evoke an emotional reaction by comparing forced labor as part of a prison sentence with literally keeping people as your personal property.

What I stated was a fact. Too bad, that you don't like facts, or that you try to dismiss the fact that it is slavery by comparing it to chattel slavery.

This isnt some bigoted law in some Southern state legislature. This is enshrined as federal constitutional law, and is also why the USA is not a signatory to numerous anti-slave treaties.

> If we're going to call any instance of the government forcing you to do a job you don't want "slavery", then here's a list of countries where the majority of the population has been forced into "slavery" without even being found guilty of a crime.

No, "I" didn't call it slavery. The 13th amendment did. Too bad the constitution isnt enough of a authoritative source. And then, you dismiss it with whataboutism. I live in the USA, and am dscussing USA constitutional law; Im not discussing your whataboutism of countries I dont live in.
I think you're right, to a point. Let's not forget that we're talking about a country that amended its constitution to outlaw alcohol, and this state of governmental failure remained in place for over a decade. So there's more going on here than just preferring drugs that bolster amoral decision making.
> 1) The day Amazon feel threatened they can become the cheapest in the market quickly again.

I don't think that's necessarily true. Majority of products sold on Amazon are sold by 3rd parties. Amazon's commission fee structure, and seller-eats-return-shipping-by-default is to blame for prices going up on many items...

Competition among sellers is fierce on Amazon - and historically was a race to the bottom, chasing sometimes $0.10 profits after paying for shipping materials, shipping fees, labor in warehouses to fulfill orders - or paying FBA fees which are often higher but gets a sales boost by Amazon for the privilege...

Amazon keeps raising commission rates, FBA fees, sticking sellers with return shipping label fees, commission minimums, etc. It all adds up to an unprofitable proposition - or you must raise prices to compensate. So, that's what has been done... making Amazon more expensive in general for almost everything.

Sure, Amazon could cut their fees tomorrow - but it will take time to work itself out into lower prices for consumers... especially since people are unlikely to trust Amazon's fee-holiday longevity. Amazon tends to change things at will with minimal notice.

Do yourself, and small businesses alike, a favor - find something you want to buy on Amazon - then search the seller name on your favorite search engine. You might be pleasantly surprised with the free discount you receive by purchasing directly from the vendor's website than through Amazon + all the fees.
Sure. I'd be curious to see some data on who actually follows through on this. Pushing the burden to the consumer to document these transactions doesn't make any sense to me. Additionally, I bet many consumers don't even realize when taxes haven't been paid during checkout.
Please don't respond to a bad comment by breaking the site guidelines yourself.

https://news.ycombinator.com/newsguidelines.html
I'd just like to point out that the paper was never removed from the NYJM site[0]. Note the references to the Damore controversy in the third paragraph of the introduction, which Hill conveniently left out of the version he linked to on arXiv. Also interestingly, its accepted date was later than the paper that replaced it and most of the other accepted papers that I've checked from that edition.

0: http://nyjm.albany.edu/j/2017/23-72v-orig.pdf
> Meanwhile, the finance industry has convinced people it’s “impossible” to beat the index in the long run.

Did the finance industry do that? All I see when I look at the finance industry is people desperately trying to convince me that I can beat the index if I give them lots of money. I think what convinced people it’s impossible to beat the index in the long run is the continuous failure of active funds to do that.
My bad, I meant OFDM but typed OFDMA.
XxRhetoricxX – Perkys Callin (Remix) (Official Music Video)
And, by extension, Elixir!
AGPL is a tiny subset of open source software, and even then it's intended to allow cloud infrastructure companies to sell covered works. It's certainly the case that there's an intent to prevent certain pieces of open source software from unconditionally being used in this way, but I don't think it's reasonable to argue that there was a fundamental incompatibility between the original ethos and what's happening now.
For a second there I thought you were talking about the interview process for becoming a Jew when they weed out undesirables.
There are a lot of comments here saying that this isn't a SMPS, then proceed to describe a flyback converter (and the difference vs this unit) as a justification. Just note that the field of power electronics is quite large, and as an example, some power converters don't even have an inductor or transformer (though most do).
As I understood, the definition of a SMPS relates to switching between discrete states (i.e. on/off) as opposed to a linear supply, which dissipates power to regulate.
Source: am a power electronics engineer.
I interviewed at Google (back in 2005, mind you) and I remember being asked a couple brain teaser questions like how to estimate the number of windows in NYC.

I will say that out of my loop, there were only 2 interviewers that came across as intentionally mean, the rest were genuinely wanting to see how I solved problems and understand what my thought process was, which is what most interviewers should be attempting to assess.

The intentionally mean ones need to be culled from your interviewer pool though. Does it really do a service to Google or to the candidate to stump them, and also humiliate them for not knowing the answer you were hoping to get from them? There are ways to make a candidate feel good about failing an interview despite not making the hiring bar.

And remember, these candidates are still your customers, and human beings. They will remember how they were treated.
> What do you mean by adding images?

Exactly what cmroanirgo describes, also see my reply to epage (https://news.ycombinator.com/item?id=17961353) for that and my problems with rss, and some other things I didn't mention. For images, I ended up writing my own metalsmith plugin to resize images to different sizes and add all the attributes to the tags properly.
> But there is nothing magical or special about Switzerland other than a concentration of interest.

That is called clustering, and it is very, very hard to build and disrupt. It took Silicon Valley almost 100 years to build its own.

Why do you think Switzerland is such a global leader in precision machinery and manufacturing? Yep, 150 years of watchmaking.

You don't make that up out of nowhere.
Or the thing you keep your drawers in
For safety before flight, we at DronesBench http://www.dronesbench.it/en have devised and validated academically a single electro-mechanical parameter for the drone as a whole. If written on the plate at factory or just sticked somewhere on the frame, it would make testing extremely inexpensive through its entire operational life. Incidentally (shameless plug!), we are exhibiting at The Commercial UAV Expo in Las Vegas on Oct 1-3 with an eye to the STEM educational market worldwide.
One hack we've employed with our customers in interviews and through surveys: have them rank/prioritize our current features, and consider/rank a set of potential new features. It's much easier for someone to order a list (reaction), than to provide an explanation (creation). Not a substitute for a full interview, but a quick way to determine what your customer values.
We tend to do a 2 phase project plan. With a fixed $ for the initial scoping and finding out the actual objectives and then work on the $$$ after.

Has made our project timelines much more realistic and also a better end product for our client.
> Therefore, market economies make nations poor.

No, because there's USA, Germany, France, etc. Which has much bigger market economies and not poor. But all major socialist economies has been a disaster (no, China is not a socialist economy and hasn't been for a while, neither is Sweden, Denmark etc.), and socialist societies has been even worse disaster in non-economic sense (see gulags, Pol Pot killing fields, Cultural Revolution, North Korea, etc.).

> Proof by example is a logical fallacy.

Some people call learning from example empirical research and scientific method. Others ignore all the examples and keep claiming the real perpetual motion engine just hasn't been tried yet.
Netflix's Next Gen is actually a cautionary tale about phone addiction
Though the line of best fit seems to fit well to an exponential for now, it is likely a sigmoid in the end [0]. The real trick is figuring out when you've reached the 50% mark, as any physiologist will tell you! ;)

Also, I might as well mention that I'm a recent bio-eng grad that posts in the 'Who's hiring?' threads still. Details in my profile page. And, sorry to be so blatantly self promoting.

[0]https://en.wikipedia.org/wiki/Sigmoid_function
The version published in NYJM is still available on the site: http://nyjm.albany.edu/j/2017/23-72v-orig.pdf
The crux of this is:

Giving the customer what they ask for != solving the customers problem.
So china recently turned off their ipv6 basically?
hey! would love to chat with you about mapbox - what's the best way to get in touch? feel free to send me a note here - help@mapbox.com

-Vanessa
How so? Its code will still be closer to ASM instructions, minifed js is closer to decompiled Jar (haven't personally seen one, maybe I'm wrong here). It doesn't even mangle every identifier so every now and then you get set back on track of what the code does by the occasional Array#filter or something
Pause html document loading, rendering, js execution
"I define “bio” at YC as anything enabled by biology and anything in healthcare. In healthcare, this includes medical devices, tools, therapeutics, diagnostics, and healthcare IT"

Healthcare IT... not what I would think of as Bio.

As noted in the quote if it is "anything in healthcare" that just seems like, healthcare.