skysight-inc/HackerNews huggingface dataset:
I still don't understand why snowflakes are symmetrical. There is symmetry across 3 "planes of reflection." What is the mechanism that transmits information from one side of each plane of reflection to the opposite side?

Pop science explanations never explain this:

http://www.scientificamerican.com/article/why-are-snowflakes...

By analogy, one could say that Courier New zeros "arrange themselves in predetermined spaces and in a specific arrangement." But this gives us any number of patterns across a line of symmetry, including a few non-symmetrical ones.

00000
0 0 0
0
-----
0
0 0 0
00000

000
0 000
0
-----
0
0 0 0
00000

So how does the communication happen? (I realize the communication is happening from the inside going out, with additional information being provided over time by the environment.)
Paper books will go the way of Vinyl.
Lapse? It's $20 for a lifetime membership.
Aren't you always able to sue? Even if you sign a contract saying that you consent to internal arbitration? You can always sue.
How does the tech for that Super Bowl music light cube installation work?
Have you seen the art piece with the bike powered game?

There's a big cube installation being built in SF, in what they're calling Super Bowl City. I want to know who makes it and how it works.
This procedure has been done on monkeys in the 70's. It might not give this man any control over his new body, but at least he won't suffocate to death from spinal muscular atrophy.
Does it mean we don't need auto insurance any more when/if I get a Volvo self-driving car?

That's a claim that can change auto insurance big time.
Oh, it won't be a black market. There will be lobbying and laws will be passed authorising the preservation, transport and sale of war casualties from "rogue states".
What I see in this essay is a dissonance resulting from a collision of what is necessary for a software engineer (or even webdev) vs required for a computer scientist. Which is reasonable; our pop culture, academic institutions, and hiring managers routine conflate the two. However, the truth of the matter is that the union between the two skill sets can be vanishingly small, depending on the specialization.

Some huge percent of open dev jobs can be done by just about any applicant after ~1 month of training; I think the market is starting to realize that and salaries will eventually correct. However, just because your average javascript code monkey or java CRUD app dev is overvalued doesn't mean there isn't value in a CS degree for actual context sensitive applications (data analytics, machine learning models, firmware dev, etc).

*This coming from a CRUD app dev who's paid way too much for how trivial what I write actually is purely on account of the network effect.
If car safety stayed at 1960 levels, there would be about 60,000 car deaths per year. Valuing a human life at about $5 million, those 30,000 extra deaths would have an economic cost of $150 billion per year.
Without offering an opinion on the Azores theory, I'd like to note that the two aren't mutually exclusive. Plato could have heard the Atlantis myth and then repurposed it as a political allegory.
I consider myself a skeptic. To me JFK was killed by a lone gunman, we went to the moon, and 911 wasn't a inside job. Then I read I've Been to the Mountaintop and wonder if there wasn't some involvement, at some level, from the US government (or those who control it) in MLK's death. It is already proven they attempted to discredit him, did they simply take that one step further?

Then I look at stuff like black lives matter. More white people were killed by police last year than black people. What did all the people murdered by police have in common? They were male, and they were poor. Are we sure this is a white/black problem and not a rich/poor one? Framing it in the black/white context seems to keep the for profit prisons humming along happily.
Not to mention that the death rate is a tailing indicator for safety - there were a lot more deathtrap junkers from the 70s and 80s on the road in 2004 then there are in 2016.
It seems github and bitbucket were released in the same year.
I'm not really sure how Zcash's privacy features differentiate it from a Cryptonote protocol, like Monero.

Disclosure: I own Bitcoin, but do not currently own any Monero. I have no financial incentive to promote it, I'm just legitimately curious as to how Zcash is different.
> That's their downfall right there. With someone visible to track they've given up the game before they started. Real people running real companies are really vulnerable. The real test of a security system is its weakest link. And that link is almost always a person. Right?

The company that is launching this consists of a team of brilliant cryptographers and security engineers.

How does "their identity is known" translate into an attack?

How does "they're a for-profit company" weaken the security guarantees of a zero-knowledge proof?
> with some color correction and other odds and ends.

So they removed Luca's artistic touches and replaced them with their own?
You know, I've had people assume I was an inferior software developer solely because I was in a social fraternity and therefore must not have spent any time studying for my exams or working on my problem sets. That's not really a nice prior to have about an individual, sort of how it would be considered quite offensive to assume that a woman were an inferior software developer due to her gender.

Additionally, I'm not going to pretend that Greek life is 100% free of douchebaggery. Some people in fraternities do bad things to other people, or harbor bigoted worldviews. I feel that you grossly overestimate the proportion of people who do. To address the racial and sexual homogeneity point, I'm fairly confident that every single fraternity at my alma mater had individuals of color and homosexual individuals. My own certainly did.

I'd also like to point out the obvious blanket statements you've made about the demographics and attitudes of fraternity members. However, I really don't think anyone or anything can budge your opinion.
A good question. Sanctions included other countries outside the US and EU, but I don't recall the specifics or what Norway's position was.

However, helping Iran build nuclear weapons is a very serious, very consequential thing to be doing whether or not your country is officially participating in sanctions.

Would it be ok for your company to help Mexican drug cartels, even if it was legal? This is far more serious. If Iran obtained nuclear weapons, Norway would suffer the consequences too.
Shows with Aaron Sorkin dialog also have this feel. (A "verbal Normandy" in the words of Stephen Cobert.)
Not every truth is a Proven Fact. (proven? how? by whom? funded by whom? for what purpose? with which subjects? how many? over what duration? under what controls? You'll get a different result every time.)
Do We Really Want Messaging to Replace Our Apps?
I never said arbitration should be mandatory. I am merely making the case for why it is a useful term of a contract, much like a late fee, performance bonus, or M&M color requirement.[1] You are also assuming that the arbitration will be unfair, which may or may not be the case; I have seen evidence on both sides, and there are many arbitrators who reach decisions more favorable to plaintiffs than the courts do, but at much lower transaction costs. Transaction costs often dominate employer-employee disputes.

[1] http://www.snopes.com/music/artists/vanhalen.asp
Seconded about starting with brakes.

Unlike the rest of the car, brakes are designed from the beginning to be replaceable. This makes them much easier to work on, and as long as you don't forget to insert the pads it's pretty obvious if you did it right.

Do one side at a time, so you have the other side to copy in case you are not sure at any step.

You'll need to learn how to lift a car, never work under a jack, always jack stands, and always two stands. (More stands, or stands plus the jack "as backup" is actually LESS safe! Stands are safe because in order to tip over you have to raise the car against gravity - you don't want anything that reduces the full weight of the car against the stands.)
Hey!

Can you help me understand something about Zcash? Do buckets need to be decrypted for the network on spend? Or is there a way to append a zk-proof that the bucket contains enough to fund follow-on buckets?

I'm probably wasting your time a little by asking, but I don't want to rely on my own reading to get a solid understanding.
I understand that it is true that some fraternities have systemic issues with racism and misogyny, but isn't that a dangerous road to go down? Would it be OK for me to make judgements about the attitudes towards the treatment of women of my Muslim colleagues and acquaintances, without knowing anything else about them? Or would it be acceptable for me to make assumptions about the criminal history of acquaintances, just because they grew up in a "racially homogeneous" area that statistically has higher rates of crime?

While I accept that some social associations may have disturbing incidences of systemic problems that must be addressed, I strongly disagree that it is OK to make judgements and assumptions about individual people without knowing anything about who they are as a person.
What gfx card are you using? If nvidia, you should install nvidia's proprietary drivers for linux -- it would be very surprising to me if they didn't support your monitor's resolution.
If "Only" saving 25,000 people a year is not enough to get you excited, I have to ask if there is any human endeavor that you would consider to be worthwhile.
> Socialist or capitalist, who would cry over a "corporation"?

Industrialists or Libertarians.
I am still laughing from that graphic. So simple, but, you know what? So true, too.
It seems you are letting your (justified) anger at the situation to cloud your judgement so much so that you fail to see the irony of how similar your generalization rhetoric is to those used in environments you abhor. How is your detrimental usage of terms like "frat boy" and "dude" different from, e.g. people who observe a few women who are not interested/good at coding and declare "Women can't code"? Or when someone declares "Racial Persecution Really Isn't The Problem In Baltimore, it's "Personal Behavior" (http://mediamatters.org/video/2015/04/28/bill-oreilly-racial...)?

I came across poignant reminder of this irony while catching up with news about university protests over the weekend: After being intimidated and physically assaulted by protesters while trying to take photos in a public space in Missouri U., the journalism student Tim Tai said "He was in a similar situation when covering last year's protests in Ferguson, ... — except 'it was the police doing it then.'" (http://www.latimes.com/nation/la-na-missouri-protest-camp-20...)

We should not appropriate the tactics of those we oppose.
It's a risk, but I've known the people behind this for 20 years. They are more at risk of putting the technology/principles/etc. ahead of business than the other way around. Of the set of people I'd want building this, Zooko is in the top 3.

It's open source, so even if the company fails (likely -- it's a startup, after all, although if successful it will be huge), the project lives. But a company gives them the resources to work on this which wouldn't otherwise be available.
You still end up a quadriplegic, I believe
Zero Knowledge proofs take the place of a digital signature proving ownership of an address in Bitcoin.

Well, that's explain like you're a crypto undergrad. But, it's a start.

There's quite a lot of interesting cryptography and engineering involved in making this work; the last zerocash presentation I saw in 2014 mentioned they had been working on shrinking ZK proofs from 25k down to a manageable size for a blockchain.
>Your tax dollars at work.

Wrong.

This video and test were done by the IIHS, an insurance-industry funded groups. The DOT crash tests are lame; it took the IIHS to push offset-frontal crash tests like this. The Federal government thinks that all auto crashes are frontal head-on crashes with no offset whatsoever.

IIHS and European tests are far better, but as usual, the US standards are stupid and backwards, just like they are for vehicle lighting and everything else. The DOT requirement for those idiotic "sealed beam" headlights are what kept the fronts of cars looking so ugly for so long, while the Europeans had moved to better-designed halogen bulbs and housing long before but couldn't export them to the US.
> if you use the record extension.

It's now part of core with `hg commit -i`, although it's still experimental.
Or if Github had added Mercurial support at the same time Bitbucket added Git support (circa 2011?), I do believe that the playing field would be a lot more even today than it actually is.
From a vague memory of something I read about snowflake formation, the mechanism that transmits information from one side of the snowflake to the other is just the fact that snowflakes are very small. Their formation is driven by the atmosphere around them, and the relevant properties of the atmosphere (like temperature) are continuous, so the same on both sides of the snowflake.

Similarly, we don't believe the cosmic background radiation is the same everywhere because there is currently a massive faster-than-light communication network linking every point in the universe with every other point for purposes of temperature coordination; we believe that it's the same everywhere because the universe was very small in the past, like a snowflake.
Um, the snowflakes were very similar in the photos, but pretty clearly not perfectly identical.
I'm going to assume it has to do with the crystalline structure of ice. Crystals like to have a very specific structure, so there's only a few particular ways for it to grow from a given point. For instance, the three-plane symmetry is going to be due to the hexagonal shape of ice crystals [0]. That's also going to inform how branches of branches are formed; note that secondary branches are all parallel to the sides of the entire hexagonal structure of the flake [1].

[0] https://en.wikipedia.org/wiki/Ice_crystals#Geometry

[1] http://static01.nyt.com/images/2016/01/22/science/22Snowflak...
Yep, also dash is privacy-oriented.
JIT Assembler Library for Multiple ISAs
Yes, stock-based comp (primarily in the form of RSUs, not ISOs) are a large part of their overall costs.

Professional investors should stick to investing, product management is clearly not their strong suit based on this laundry list of proposals. :)
Yes. America has progressed from the Levittown dream of a middle-class life for everyone to the favelas of Brazil which surround a small city of the rich.

I notice that Google, in response to complaints from Brazilian authorities, has changed the maps of Rio to not show the favelas. When Google was more honest, Rio's named slums were properly marked on the main map.
I think the comparable market for organs would actually be more popular. I'm sure most wealthy villains would take a functional kidney over a body they can't control.
There are so many tasks that, by the time I figure out what needs to be done and make decisions, I'm at least half-way there. I do have a housekeeper who comes by occasionally but, honestly, sorting my mail isn't high on my list of life's issues and, even if it were, you're talking private secretary not on-demand gig. If I look at my list of tasks on my whiteboard, there's nothing there I can just tell someone to "make it so" and it would be done--or I would have already done so. (Or it's trivial stuff that I'll take care of when I can batch it with some other things.)
Admittedly there aren't a lot of places to take a Smalltalk-inspired language, but my big question in skimming this is: what does it intend to solve that, as the big example in the Smalltalk-inspired space, Io (http://iolanguage.org/) does not?
What exactly are buckets? I think they used some other terminology back in the Zerocoin days.
It's not just Google and Facebook (and it may be hard to avoid Facebook in some situations, such as networking for some jobs); it's ISPs, cellular providers, cameras in stores, tracking across the Internet - Google tracks me whether I sign up or not.

Unless I lock myself in my basement, with no communication in or out, I can't avoid the infringement on my privacy. What are rights or choices if they apply only in my basement?

> What the EU is doing is actually taking away your options.

People in the EU still can sign up for Facebook or Google and give private information to them. What options do they lose?
> Those would be accomplished with hg templates

Except for the --graph part which would be accomplished with --graph of course

> Revsets are kind of like gitrevisions(7), but much more powerful.

And easier to read and write too.
Well, can you explain why? Note that the application in question is not very critical. An error rate of ~5% would be acceptable.
Jack Dorsey Confirms Departures of Several Twitter Execs
I've had exactly the same experiences regarding mis-timed gaps among different groups; it can create an incredibly jarring experience, as well as a perception of rudeness by both sides.

In a more formal setting, you may have no better recourse than just learning to adapt, but with someone you're close to, it seems worth talking through explicitly.
VRMark Benchmarking Suite Analyzes VR Headsets and Hardware
Paul Krugman Reviews ‘The Rise and Fall of American Growth’ by Robert J. Gordon
Wall Street has a bigger problem, that many financial professionals are able to rationalize doing work that harms others. So let's say we can make the big evil banks a better place for women and other people with real life interests to work. Should we encourage our daughters to go work on Wall St? Or should we discourage them, not b/c they can't do the work, but b/c doing the work is harmful to others?

Yes I know banks are necessary, some do good. But I'm talking about the speculative operations at TBTF institutions that continue to add fragility and risk to our economy. These same institutions also tend to be the worst places to work for women (or anyone who has outside interests other than making money). I don't think that is a coincidence, but rather a consequence of the same underlying worldview.
I meant, I don't know if my description of some company's practices regarding their "members" applies to REI.
REI began to worry it was getting a reputation as a sucker. Customers started giving it nicknames like "Rental Equipment Inc." "Rent Every Item" was another. Some called it "Return Every Item."

Two years ago, REI noticed that the number of people returning really old stuff was increasing. Some customers talked about their returns on social media, which led to even more people bringing in their old junk to get refunds. It was hurting profits.

http://www.npr.org/sections/money/2013/09/25/223787129/what-...

As for discretion, they don't talk about that in this article, but it's hard to be non-judgemental about returns yet also exercise discretion. In REI's (and also L.L.Bean's) case, non-judgemental seems clearly part of why the policy was so treasured.
But this could happen with any device that is controlled by software.

Not devices that are designed to be independent and tested for proper function when disconnected.
It's worth pointing out that part of the reason that Mozilla selected Mercurial over Git was that the Mercurial developers were more willing to help fix issues that Mozilla had identified than Git was, with Windows support being the most important point.

In a way, actually, that still seems to be the case. The Mercurial community seems to be working hard on making enormous monolithic repositories much more performant and realiable, whereas a lot of Git community seems to prefer to merely respond "YOU'RE USING IT WRONG" to these issues (although I suspect the developers themselves are also working on some of the issues; it's just that I see the community at large as much more visible).

So there's definitely a sense to me that Mercurial is the better VCS because it will quietly support whatever development model you want to use, whereas Git tries to force you to use the One True Model™--and I'm firmly in the camp that development tools should support developers' habits, not force them.
Sam Altman Pitches Loopt at the WWDC 2008. Epic Pitch
No, the goal is to remove Lucas' artistic touches and get as close as possible to the original theatrical releases. Color correction means reversing all the color changes that Lucas made to the movies. Where higher quality film of a scene exists, they splice it in. Etc. If you google a bit you can find a detailed explanation of the changes.
"Even snow flakes are repeatable now, yet ..." sighs the computer scientist.
He made this announcement on Twitter by posting an image of text to get around the obsolete 140 char problem
MuseScore is great. Watch this recent episode of FLOSS weekly for interview with the developers: https://www.youtube.com/watch?v=iyrRvF1iO4I
I guess that depends if they eventually figure out how to fully connect the nerve endings in the spine.
No, you can't. That's what the "mandatory int "mandatory arbitration" means. Those contracts are binding, even in discrimination claims.
http://graphics.wsj.com/ally-settlement-race-calculator/

"Note: Hispanic may be of any race." sounds like cheating
... which is indistinguishable from a "shoppers' club card". I don't see any benefits beyond discounts and rebates. Voting is a rumor, and meaningless to most members. You're treated like a shopper, not an owner. I'm a happy REI customer with a card.
I get what you're saying, but surely you can meet the OP somewhere closer to the middle? Fraternities seem to have done their part to earn their poor reputation, if one extrapolates from the information most of us are exposed to. When incidents of racism are publicized, they usually have to do with fraternity members. When incidents of the worst kinds of misogeny are publicized, they usually have to do with fraternity members. Those of us who are grossed out by frats aren't making this stuff up.

Obviously the apparent trend could be wrong. You could argue that mainstream media is unfairly biased against fraternities. Or that the good (or boring) frats don't do anything sensational. But, in that case, your argument shouldn't be, "You should never generalize!!" The response to that knee-jerk reaction is, "Um... I'm not blind. I read what I read. I see what I see. I have experienced what I have experienced, and it tells me that frat boys are assholes." Instead you could acknowledge that the apparent trend exists and is real, but provide evidence or reasoning for the trend being misleading.
To expand on Deniz' answer, Klarismo (YC S15) does a full body MRI, including a high resolution scan of your head for $249, available in SF and LA at the moment. We extract your brain, segment out gray and white matter and measure your brain volume. In addition we segment, measure and visualize visceral fat, subcutaneous fat and major muscle groups.