skysight-inc/HackerNews huggingface dataset:
AES-GCM and ChaCha20-Poly1305 work in roughly the same way. They both use the key and nonce to produce a pseudo-random sequence of bits. A small part of that sequence is used as an authentication key to make the message authentication code using a polynomial function over the ciphertext, the rest is xored together with the message to make the ciphertext.

When a (key, nonce) pair is reused, these constructs fail in two ways:

The first way is the same for all stream ciphers: since the same stream is xored with both messages, the attacker gets to see the xor of the messages together. From this you get a fun puzzle, e.g. assuming English text you might deduce something like 'alphabet neighbours, followed by the same letter, followed by the same letters but different case...', from which you can often deduce parts or whole of the plaintexts by statistical methods.

The second is due to the polynomial structure of the message authentication code. In a secure MAC, an attacker must not be able to deduce the key from seeing the authentication code. But for GCM and Poly1305, this is only true if the attacker doesn't see multiple messages authenticated with the same authentication key. With multiple tags from the same key, an attacker can solve for the authentication key.

Together this lets the attacker know both the keystream and the authentication key, from which they can forge basically any message they want for that key and nonce.

Compare this to e.g. ChaCha20-then-HMAC: a reused nonce would still let the attacker deduce the plaintext, but having two messages signed with the same HMAC key tells you nothing about the key. ChaCha20-Poly1305 is secure when used correctly, but ChaCha20-then-HMAC is more misuse-resistant, since a reused nonce breaks confidentiality but not authenticity.
There's an older paper/blog from a Google admin describing the set of scripts they use to periodically reboot their Perforce servers.

That should tell you how well Perforce handles huge repos, and I imagine it's not gotten better.
>Objective ones, like MACD, EMA, RSI, etc... can be useful when applied correctly.

True, they can serve as useful tools for describing market conditions. If I want to tell a computer to do something when the market is falling rapidly, then I might define "falling rapidly" as "price below the 15-second EMA" for example.

But do they have any predictive power? No.

>I can tell you from first hand experience that technical analysis trading strategies, when applied correctly, are very, very, very effective.

I doubt it. I've never met a professional trader (i.e. at a reputable firm) who uses them, and they'd be laughed out of the industry if they did - at least in all the places I've worked. I imagine the only people who 'use them successfully' actually derive their edge from elsewhere (institutional advantages, etc.) and just don't realise it.
Simple undo in JavaScript with Immutable.js
For basically the entirety of my childhood. Both my parents were working. I can honestly say I am a better person for it. And not just because of the material benefits it afforded me (better education, got to travel a lot).

Through out my childhood both parents had jobs with varying amounts of time requirements, with both having periods of stay a home spouse (I believe my father found this particularly eye opening) and both periods of 9-7 working time.

They always took the time to explain to me and my sister about why they were doing the things they were and ensuring that we were comfortable with their decisions. Now it may be that it was this honesty that had the greatest benefit. However I do think I have a much greater appreciation for the importance of a purposeful work life balance.

Mind you, not necessarily a highly even balance, just ensure that if you are working 50 hours a week, there should be a goal in mind. In fact every decision about lifestyle should be carefully thought about.
Down voting because the op didn't saying anything about 'cares more about engaging' or 'cares about his daughter'. That's blatant misrepresentation of the what the op did write.
This. There is a massive range in daycare from "your child will be alive when you come back" to "all our staff have degrees in childhood education" (and of course the associated price range).

The same is true of stay-at-home parents. Some get exhausted after a few hours and others thrive in constantly nurturing and teaching their children.

Comparing the two isn't terribly useful unless you break it down further.
Almost every kid learns to walk and talk. But there are huge differences in how elaborate kids and adults can express themselves. And reading about super successful people, it seems they often started with their job as kids (writers, musicians, sports people, mathematicians...).

I like what you are doing with your son, though, I have similar goals for time with my kids.
http://scpnt.stanford.edu/pnt/PNT09/presentation_slides/12_B...

They integrate GPS/GNSS, Iridum and other satellite signals.

I would bet a billion dollars that this has nothing to do with their existing products and everything to do with the rumored Apple Car. Centimetre accuracy location services would be a very useful feature for auto driving capabilities.
More work for you.
Looks like iGPS:

http://investor.iridium.com/releasedetail.cfm?ReleaseID=4291...

via http://www.macrumors.com/2015/05/17/apple-coherent-navigatio...
An example that superficially looks like "cut and paste" programming occurs is actually implementing a new derived class. In the C++ case, you could:

1. Type out the new .h and cpp files from scratch.

2. Copy/rename the base class .h file, remove all non virtual functions and other text not needed for a derived class, copy/rename this new header creating a .cpp file, convert method declarations to definitions, and add method implementations.

3. Copy/renamed the .h and .cpp files for an existing derived class and replace the existing method implementations.

Option 3 is a reasonable choice and is an example of what article article discusses.
This:

> [In day-care] the likelihood is that the kids are in a richer environment, materially and socially.

Think single parent suffering from mental health issues and unable to work, or other disadvantaged stimulus poor domestic environment.
"In order to call a language purely functional, it has to have 6 distinct features"

Is there an international standard or a some sort of formal proof?
Very surprised by this, I had no idea VPN companies were so widely used.
About a decade ago, Boeing came up with the idea of reprogramming the old Iridium sat-comm constellation to turn it into a high-fidelity, jam-resistant GNSS.

Coherent is big in developing receivers that use multiple geolocation sources -- GPS and Boeing's iGPS in particular, but they might use other sources -- for fast-fix, reduced susceptibility to jamming, and high-precision and accuracy (within a few cm). Unsurprisingly, they've concentrated on the military and critical government (e.g., FAA) market.
This guy gave it away for free too. He just added affiliate links.
TL;DR: You can't outwork a bad diet.

Of course, a TFA mentions, exercise has benefits of it's own, such as building muscle tone and improving cardiovascular health. But if you want weight loss, start counting calories.
Open spaces are awkward when neither you or your boss have an office. Anytime you or a coworker get pulled into a meeting room by management, it's very noticeable.
Five Android Test Automation Frameworks (with Code Examples)
I think he was being facetious (pointing out that "resize your browser window" isn't really an option on most mobile devices).
While I agree with you I'm not sure that is a good use of "certainly"...It depends how many kids the worker is with and which one is her favourite, as well as the character of the daycare worker. There were plenty of strange* men volunteering to die in frozen waters to save women and children when the titanic went down, for example.

* in the stranger sense of the word.
And then our hypothetical attacker can figure out how you generate the honeypot URL and embed an image with that URL for their visitors. Of course you can easily make it impossible to guess but you need to make sure that they can't obtain robots.txt via GET requests from a visitors browser (No Access-Control-Allow headers). Also don't forget a single visit from a network, sharing an IP would still ban all the network. And there is the rule that a GET request should not change any state. Banning an IP address is a change of state.

In short, it's just too much pain for little gain.

Maybe a login form can be served from that URL, and any attempts to login would then get the visitor banned via a session cookie / browser fingerprint combo (Easy to get around but at least then you're not blocking IP addresses).
You worded that a bit strangely but it's fair to say the daycare worker made a willing career choice that involved taking care of kids all day everyday and is likely to enjoy it a lot and consider him/herself to be fairly skilled at it.

Potentially more so than a tired daddy and mommy, yes.
Very different perspective. The performance review caught me off guard in how emotionless and even apathetic it seemed. Basically- "you're doing fine. you could be doing better in these areas, but I don't care if you try to make these improvements". How can you challenge your employees with reviews like this?
Examples: https://github.com/overviewer/Minecraft-Overviewer/wiki/Map-...
I think this is the strongest factor. Once you have a critical mass locally, it's pretty hard to shift the user base - it would need a compelling reason, and you aren't going to get that from minor differences in UX.
So they have some R&D... but how much can each company really do at any given moment? For every research project Apple or Microsoft does, how many projects are under work at $random_startup? For ever good thought Apple or MS has, how many ideas does someone come up with that otherwise would have never been considered?
"Nobody will care for or about a child more than that child's mother (barring psychological abnormalities in the mother)."

Well, technically I guess I can't disagree with you because you said 'care... more', but I assume you meant that to also mean 'care... better', which is about as wrong as it gets. Why would anyone instinctively know what's 'best' for a child's development, let alone better than trained professionals in a professionally build environment? There are tens (hundreds, more likely) of thousands of people working every day to understand how children develop best, and convert that into actual practice. It doesn't stand the smell test to say that all that is nonsense because parents somehow know better.

The other aspect is how much love children get, and yes of course nobody loves children like their parents. But again there is no reason to think that just 'being loved in close proximity', say, 4 hours a day + weekends is worse than having a parent around 24/7. Nor does 'love' equate 'stimulate good development'. If you are going to claim that in the 'good old days' when children were at home all day with mom they would be doing crafts and nature education and going to playgrounds with equipment designed to stimulate activity in a safe environment, then I have a bridge in Brooklyn for sale that you might be interested in.
The problem with torrents are at the ends - initial seeding and lack of seeders as traffic declines. Both cases benefit from a static web seed.

I ran a site a couple of years ago that did this very thing, but it was quickly overwhelmed with illegal content..
It won't be exactly the same point.

With a fake name there is no proof that the information in question ever existed.

I would've probably masked a name, but institution url should stay there, so anyone could check that the point is valid.
Interestingly, Hacker News doesn't support this standard, and the link on the front page shows the unfriendly version.
No it is not. I asked a question on how the op thinks a 22 year old paid to look after his daughter is more engaged with her than either him or his wife.
It was one of the first things I missed when I moved to NYC. Kijiji is so much better than craigslist.
GPU-based rootkit and keylogger
That's certainly my experience in the UK - the workers in the nursery my son went to from 6 months were absolute saints and had a lot of passion for their work - they loved working with kids.
Have you taken a look at the study this article is written about?

I'd agree that it makes intuitive sense that childcare could do better than exhausted working parents, and possibly even emotionally drained stay-at-home parents, but another poster pointed out that this study seems to say "people who can afford daily childcare have children with better outcomes" -- which might correlate pretty closely with "wealthier people's kids have better outcomes", which the research already told us.

As an aside, these kinds of discussions (where HN talks about the world's social problems) are the second reason I come to HN. I'll get exposed to great worldviews, from generally smart people, expressed by people who speak my language.

And child care, together with the possibly related problem of currently worse outcomes for children of single-parent families, are social problems that are potentially immensely valuable for society to solve.
Will Art Save Our Descendants from Radioactive Waste?
Mean time to “women in tech”
it is actually not about motion control. It is a fundamental inability to communicate. I don't know much about this specific case, but it is quite possible he could accurately hit arbitrary buttons, but cannot map those actions to a meaning to be communicated.
The key is to know when you have to speak and when you have to comply. Cops tend to ask a lot of questions. The ask a lot of mundane, pointless questions, fostering the idea that they are a bit stupid, then they will start hitting you with silly or contradictory questions. This is the trap springing; they are hunting for Probable Cause, or PC, and their definition of what constitutes PC is quite broad. They bog standard pig has a narrow range of goals when dealing with a suspect: get them talking, get them nervous, get them out of control. They move in pairs for a reason (and often times they group up at traffic stops): one chats you up while the other looks for anything that could be construed as PC. The nervous part is easy; a dude with a gun asking a lot of questions should make any thinking person nervous. Getting you out of control is the finish line: they want you out of the vehicle. Once you are out of the vehicle they have de facto consent to search said vehicle. A previous poster brought up "social pressure" and they are absolutely right. Embarrassment and fear are super useful when manipulating anyone.

You may be asking yorself: Classicsnoot, what is the point of all this babble? Is there an answer to the question anywhere in my future? Here it is:

Say. Nothing. Smiles and nods are absolutely enough. You are legally obligated to hand over your ID. You are NOT obligated to answer in detail. "yes", "no" and "I don't know/I'm not sure" are the script. As a very wise penguin once told me: "Cute and cuddly, boys, cute and cuddly." If Mr. Piggsly can't handle your clipped responses, he will become frustrated and agitated. A frustrated cop is a mistake prone cop. If you are male (particularly a male of color, but cops shoot white people just as often as black or brown people) DO NOT ACT IN ANY WAY THREATENING. Always ask or inform when you reach for anything. Do not explain, give reasons, or give back story. It is none of their business where you are going or what you have been doing. And finally, they will always threaten you with "a ride to the station". This is their Queen. Everybody is afraid of this, but it is actually to your advantage. They can only legally hold you for 23 hours, 59 minutes, and 59 seconds without charge. And you are not legally obligated to say a damn thing. I know this is a lot. I am available to answer specific questions should you want clarification. Here is the script:

Yes.
No.
I don't know.
Lawyer.

Edit: IANAL. I speak from experience: stopped as driver, stopped as passenger, retrieving friends and girlfriends who have been stopped. Arrested when guilty. Arrested when innocent. Arrested while existing in the nebulous region betwixt guilty and innocent that most citizens seem to occupy. Dated a lawyer. Related to lawyer. Paid a lawyer. Supplied a lawyer.
Ah yes Moore's playing is indeed stunning, just the nasally higain tone that was offputting compared to his blues sound.

It might just be a rubbish mix on the album though - in person it is likely very different.
Inappropriate? yes.

Rude? yes.

Indicative of churlish immaturity? yes.

Abuse? Nope.
it's a bit more complicated than that in France, the trick is giving the person enough money so they don't sue. That's the whole point. Give them more money than they would get if they were suing.

edit: as a side note there is no reference in France.
In Ottawa, kijiji appears to run second to usedottawa.com, but both get good traffic. Craigslist is a ghost town.
I hope your reasoning is a minority sentiment.
Introducing Preemptible VMs
All the pictures on the website seem to be taken in arid climates. Does anyone know how well Superadobe is suited to more humid/cold climates (e.g. Scandinavia)?

Adding layers of insulation on the inside seems non-trivial, given the dome shape and the already thick walls.
I think it's possible they have both short-term predictive power, and for it not to be profitable to trade the signals they generate. For example, something like "price below the 15-second EMA" might mean in the short-term there is large probability of the price falling, and in the small possibility it reverse, it spikes a lot higher, making it not profitable to take a directional bet on the price. This can make those signals good for investors to decide whether to invest in a rising bull market with low yield and a tail risk of large negative return or a falling bear market with high yield and a tail risk of large positive return. There may be no objective profit, while allowing "subjective" profit in utility by matching investor's risk profile. It does sound like gd1 has more experience than I do, though, so don't trade off my perspective.
I think this amazing post on being kind is needed by the author.

http://boz.com/articles/be-kind.html

Quote: "But believing deeply that I am responsible for how I make others feel has been life changing for me. Being kind turns out to be a long term strategy for maximizing impact."
Take this personal anecdote for what it is worth. My office used to be next door to a childcare centre looking after around 40 children. I was able to watch what happened throughout the day and what the staff and children did. After a few months I swore no matter what the financial cost I would not let my children ever end up in childcare.
Generally, it helps abstracting the problem away into the real constraints, in this case, the outcomes space, (i.e. 4 possibilities, that can be compressed into 2 bits of information bit 1 = 'same or different', bit 2 = 'head or tails', but in this case 'head or tails' is irrelevant), and then reasoning how each person communicates their bit of information to span the entire outcome space.
Your comment is not very clear. Are you saying the article can't be trusted because the method used to collect the contents of it is not representative of what the author is thinking? Or is influenced in some way? If so, wouldn't it be fairly obvious, e.g. the article would seem like gobbledygook?

Please elaborate! :-)

Edit: This seems adequately explained by another comment: https://news.ycombinator.com/item?id=9563887
>As you can see, notation in functional languages is much closer to classic mathematical notation.

I'm yet to be convinced that this is a good thing.
How to successfully combine typefaces
I heard about this first a few years ago in the context of refugee camps. I think the idea didn't take off (not many countries wants refugees building weird buildings in camps), but the selling points is that all you need to bring in as materials are the bags, barbed wire and cement.

The bulkiest material is earth, which can be dug on site. Cement is optional, but improves structure's longevity. No bricks, sand/aggregate. Nothing to manufacture (other than bags). Most building methods require a building material industry behind them. Here a truck with a few thousand dollars worth of materials and basic tools is all you need.

Labour is the main ingredient and non specialized labour is often available.

^1,000 yards for $1,000. You can get a large house-worth of bags for that. Have 10 kids? Make each kid lay 100 yards!

^I don't think you can separate how it looks/feels from the rest of the project. I think the reason superadobe keeps coming up in the internet "check this out" world is because of this. It's looks and feels like an accessible DIY project you could be very proud of.
Good point, but how do you keep up code quality in the code base with standardization?

Edit: without* standardization
This doesn't explain why the relationship holds true even in countries with free or heavily subsidized daycare. Or why only daughters are affected, along many variables.

Picked these from the HBS post @ http://www.hbs.edu/news/articles/Pages/mcginn-working-mom.as...

Anyone have a link to the paper?
Why would you want to save the comments you downvoted?
Random errors likely generate easily factorable keys. Each prime removes 1/N numbers. So 2 removes 1/2 of possible numbers. 3 remove 1/3 of the remaining possible numbers etc. Just 2, 3, 5, 7, 11, 13 remove 80% of possible random numbers.
Pay Less, Compute Moore
I did not read this as a lack of empathy. He even addresses your concerns because he emphasizes that the firing process would come after multiple failures of execution or judgement, not a single instance. And he says that a single failure can be a time for a frank discussion where conflicts are outed, addressed, and resolved for good.

I have (unfairly, I believed) been on the receiving end of the normal "Well your performance isn't great, you need to change your attitude before I trigger a PIP", then a PIP...I would rather have had it the way this article describes. Expectations are made clear, opportunities are given for correction, and a gentle-but-firm push out the door is saved for when things are broken.
> Nobody will care for or about a child more than that child's mother (barring psychological abnormalities in the mother). Father a close second.

That statement is useless because it is a tautology. If the parents don't care about or for their children (and trust me, many, many don't) according to you by definition they must have a "psychological abnormality." Being a selfish dick is a bad trait but "psychological abnormally" is going quite far. There's plenty of selfish dicks in the world who couldn't give a rat's ass about their children, including deadbeat dads (or moms) and others. Only in an idealistic, fantasy world do parents universally care for and about their children.

Many people who care about their children are very aware they don't have the ability to care for their children. That's a big reason why adoption (family adoption and stranger adoption) exists. The gender role assumption is pretty weird too. Some people have two fathers and an unknown egg donor for example - do these children have less care than someone with two heterosexual parents? Or do two moms trump a mom and a dad?
> Last time I was fired because someone didn't like my visage

Well what kind of faces were you making at them?
You can apply for Zone File access at some Internet registries.
I'm not sure if there's anything inherently imperative about OO, as the author seems to imply. In addition, I'm not sure just how distanced most FP languages are from the von Neumann model. I know APL, J and K are categorically non-von Neumann.

Static linking

All variables are allocated at compile time and are statically linked. No need to go into more details.

I think they meant static binding?