skysight-inc/HackerNews huggingface dataset:
Twitter is a cocktail party. Facebook is a dinner party. You can flit in and out of a cocktail party easily. LinkedIn is just a map of professional contacts, only useful for figuring out who you need to actually call for something. Google +, beats me. I know people on it, but none who use it.
Probably one of the many WebGL shader toys (such as https://www.shadertoy.com/) which use GLSL.
Consensus identity algorithm?
I've got a side-project I've been kicking around for a while. I think I've gotten sufficiently far to start some basic implementation EXCEPT one issue I'm still not sure about.

Are there algorithms out there that could be considered (what I'm calling) "consensus identity algorithms"? In other words, I don't want a centralized (or even semi-centralized) authority in charge of establishing the identity of an actor within the network. Such as the CA within SSL. I

So I'm comfortable with the idea that digital signatures will get me pretty close to the holy grail, but the kicker is I want those actors to be able to build consensus in such a way so as to prevent (for example) any single actor within the network from creating multiple identities. Either that or make it statistically improbable (impossible?) for such an actor from doing so. To put real-world context, imagine a social network where it's improbable that a single person could create multiple identities without it being detected by the network.

Now, from the looks of it I've almost convinced myself that this is impossible, so unless someone has the info, I'm totally comfortable entertaining ideas that reduce probability of any single actor within the network from creating multiple identities as opposed to a mathematically pure solution that strictly prevents the possibility.
It's not like they're not building a moat, with things like Facetime, iMessage and AppStore, which exist only within Apple ecosystem.

Analogs of them exist outside of that ecosystem, but it's not like the apps you've bought through iTunes AppStore will magically work on Windows Phone, should you decide to switch.
God damn it...sucks to live in Canada.
Same here. Dijkstra's was the first I tried to search, to no avail :(
http://shadertoy.com/ uses GLSL (or whatever its WebGL equivalent is). Is that what you're thinking of?

(The language is syntactically similar to C, but quite different from it in some respects, as it compiles to code that runs directly on the GPU. GPUs have a very different execution model from a CPU - though they have been moving closer together and I guess that trend will continue. On the plus side, the performance can be excellent, provided your PC has a decent GPU.)
Anonymity is tough with physical stuff like cars and passengers. All the CPUC needs to do is have one of their people pretend to be a passenger and you're busted.
That's if you want to take vitamins and ask the doctor for an opinion.

My point is a doctor should be the one telling you that you actually need vitamins in the first place.

But I'm not american, and I sense a high probability of cultural clash here :)

[Edit] Example: in Italy if you are somewhat healthy you tend to take the vitamins you need from the food you eat, and if you're not then your doctor will prescribe (is it the right word?) proper exams and then tell you if you need vitamins and which ones.
Detroit: The link between technology and economic vitality
"don't hate the player, hate the game"?

It shouldn't be so taboo to discuss flaws in the capitalist system.. The article itself is a very raw exposition of a characteristic of it that I imagine is understood by people on both ends of the political alignment spectrum as a damaging thing, not that it couldn't not be.. I think the discussion matters because reality matters.
how about "Don't take health advice from econ grad students on the internet, take it from your doctor"
To be clear: Serious vitamin deficiencies can cause serious problems (scurvy in the case of vitamin C, rickets in the case of vitamin D, beriberi for vitamin B).1 But if you live in the developed world and eat a normal diet — even a pretty unhealthy one — you will be nowhere near this kind of deficiency.

I live in Canada and eat a normal diet. My blood 25-hydroxyvitamin D level was 22 nM. I had symptoms of hypovitaminosis D which went away after taking 150 kIU over the course of a month, at which point my blood level of 25-hydroxyvitamin D had increased to 76 nM.

Sure, this is pure anecdote, but it proves that it is possible to be deficient.
Do you think you could run a service equivalent to say Google Maps on $20/month hardware under the sort of load that might come from being on the front page of HN and reddit on the same day (Heck, even HN alone)?

Also consider if you are serving HD video or doing financial number crunching over a large data set in the background.
Sadly the website seems to have fallen over for me.

I am really interested in how it works. From what I could see it seems a bit more cumbersome, than my approach of a using full JS interpreter: http://will.thimbleby.net/algorithms/doku.php?id=bubble_sort
The value of Uber isn't really in the tech or the app - it's in the networks of riders and drivers in each city.

One thing to keep in mind, is that a "spontaneous pick-up of a new rider" workflow is very similar to a "switch rider to a new network" workflow. If the apps are designed to be rapidly downloaded over cellular/LTE then this could often be accomplished in the space of a single ride, facilitated by coinciding GPS information.
The speech CU engaged in implicates practical problems and therefore it's less deserving of protection?
http://doc.rust-lang.org/master/complement-design-faq.html
Subsidizing mortgages will just cause them to go up - property "valuations" are only limited by the carrying cost of the loan. Honestly I think this is why California prices are so astronomically high - there are no heating bills in the winter to distract from mortgage payments.

> commensurate with their need

If satisfying government hoops is a requirement, you turn that into their primary job. And thats a dead end for respectability.

> Stability is a key factor to being to climb out of the hole

For many people, there is no discrete "hole" - their existence in an area is simply not economically viable. I don't state this harshly because I wish to cast them off, but because I wish to illustrate that putting a bandage on their individual situation still leaves the underlying treadmill that we're all on.

(And yes, life itself is a treadmill as well - living isn't free. But tally up the costs of necessities such as food/water/shelter, and compare to the man-made rent to have a place to put that shelter)
This really illustrates the power of music. My first impression was OK this is mildly interesting, but I guess I'll click the music before closing this tab forever. Maybe the hyperlapses got better, but turning on the music made the video mesmerizing. Now I'm hooked. Great job!
Here's a maybe useful excerpt from the Stanford Encyclopedia of Philosophy, "In short, where platonism is an explicitly philosophical view, working realism is first and foremost a view within mathematics itself about the correct methodology of this discipline. Platonism and working realism are therefore distinct views."

I wonder if it's 'working realism,' as a methodological preference, that's really prevalent in mathematics. It seems like, if nothing else, the idea that some mathematical structure actually exists independently of one's thoughts on it would help to motivate a prolonged search. Maybe it's often transformed into a more full blown Platonism as a way of reconciling its methodological efficacy with one's other beliefs.
you have to divide by n.Here -

def pointInsideCircle = {val (z,w) = (0.5,0.5);val (x,y) = (math.random,math.random); if ((x-z)*(x-z)+(w-y)*(w-y) < 0.25) 1 else 0;}
(1 to 1000).map{x=> pointInsideCircle}.sum*4/1000.0
scala> 3.132
(1 to 1000000).map{x=>pointInsideCircle}.sum*4/1000000.0
scala> 3.141612

So as n goes from 1000 to a million, your pi accuracy has improved from 3.13 to 3.1416. As Chris Stuccio pointed out elsewhere on this page, this thing converges O(N^{-1/2} ie. very slowly.

You can try Buffon's needle if you want something much faster.
I'm running into the same issue. I'm actually really excited to give this a try too - Uplink and Slavehack were incredible games.
Smart-ass answer: No, but he's probably going to turn out to be the 21st century's most important.

The library of Babel is here. You and I are sitting in it.
I'm hoping its temporary and a better solution can be found soon. I think most of the fear is the sky being filled with commercial drones, which I think can be solved pretty easily.
No! That is not my premise!

I do not care what Nacchio has to say. You can find anything he says compelling and that is fine.

I am saying that independent of anything Nacchio has to say, he does not appear to have been convicted on trumped-up charges. But that belief is extremely common; even Jason Kottke featured it on his popular blog.
This has been known for some time:

> And it won't make one bit of difference if I answer right or wrong.

> When you're rich, they think you really know!

- If I Were a Rich Man, from Fiddler on the Roof

http://www.youtube.com/watch?v=Pl7BVr36bbs#t=225
The elephant that flew
I'd like to be able to try the game, or at least see a video before giving this my email address.
You can put a 4th value on the stack, and it's interpreted as the alpha value.
This so much. Saw I had to sign up to see anything and just closed out.
It would be awesome if programming could actually be as easy as you imagine it to be in your head. Any non-tech person could program in their head: When this happens, do that, except for when this happens. It's more of the hidden bugs and shit just not working for no reason that makes programming so difficult and frustrating, but if there was a way that things would "just work," that would be game changer.
I hope you mean just regulatory laws.

If not, you might have a comfortable position waiting for you in the mafia.
A quote from Thomas Edison:

> None of my inventions came by accident. I see a worthwhile need to be met and I make trial after trial until it comes. What it boils down to is one per cent inspiration and ninety-nine per cent perspiration.

Inventing Ethernet isn't just a matter of writing down a protocol. Embedded in the simple abstract idea is years of experimentation to figure out how to e.g. detect and handle collissions, etc.

I used to be an engineer at an R&D outfit. You could describe our overall idea in one, somewhat long, sentence. But we spent years thinking and experimenting to work out the details. That's what the inventive process is like.

The reason monopolies are so inventive is because they have the time and money to engage in this slow, expensive process. Companies in perfect competition don't tend to.
Don't take your vitamin advice from an economist, is what the headline should read...

This article is seriously dangerous in planting the false ideas that vitamin D and other supplementation are not worthwhile. The main reason to take Vitamin D has nothing to do with heart disease or cancer, that is why there are not significant beneficial results from the studies testing for that. It is a true straw man argument.

Vitamin D is super important for your body and especially for bone development, the brain, and your immune system. It is less a vitamin and more of a hormone, as every single cell in your body has a receptor for it.

It is very, very important to supplement it during the winter if you live anywhere above the line from Los Angeles, CA to Colombia, SC [1], as the sun never rises above 50% azimuth and so no UVB rays penetrate the atmosphere and no vitamin D synthesis can take place in the skin. These studies also use what appears from my brief checking, to be way too low of doses. I generally recommend at least 5,000 IU/day and a lot of those studies are between 400 to 600 IU/day.

[1] http://en.wikipedia.org/wiki/Health_effects_of_sun_exposure#...
Does food not come from the grocery store enriched with Vitamin D for this purpose?
Did you see what percentage of his holdings those were?
They say "apply for the audience, not the talks." Haven't had the opportunity to attend in the past, but would love to go and meet the awesome people attending!
I do not think the complaint is plausible. I think that even if you stipulate that it is, the case is strong on its own merits. There's a difference between stipulating a point and conceding it.
same issue here on chrome on os x
See also IBNIZ, a livecoding environment with a language inspired by (and even more terse than) FORTH.

http://countercomplex.blogspot.com/2011/12/ibniz-hardcore-au...
Hi,

With all the talk of ApplePay and payments in general, I wanted a place to find all the best writing on the topic. Hence, BasisPoints.

I threw this up with much help from http://www.telesc.pe/, an open source hacker news clone built on Meteor.

clickable: http://basispoints.co
Modeling molecular recognition sensors in carbon nanotubes
Right, you won't necessarily get a perfect implementation, but then are Ethernet and OOP perfect?

Examples of Betamax and VHS, BluRay and HD-DVD, USB and FireWire show that given market demand a technology can achieve a reasonable degree of development and maturity even without monopolistic environment.
fwiw, we use active-admin for our Ember front-end/Rails backend app. We don't have a lot of actions that our admins can take but it's been really nice to expose some of the account details for support tickets, etc...
Didn't SF try to ban Airbnb a while back too? Whatever happened to that?
>I don't really understand how they can afford tuition + room + board but need the $140 (less taxes) a week, but as it turns out this is very common.

As a student, maybe I can shed a little light on this.
There are a few reasons working part-time at minimum wage can make economic sense for a student.

At least at my institution, few kids whose parents foot the tuition bill work.

The students most likely to be working 20 hours/week are the same students likely to receive some form of financial aid/merit scholarship. As such, the tuition + room + board costs may be significantly less than the sticker price. Considering this reduced expense, the ~$200/week from part-time work may make a considerable contribution to a student's budget.

Even if these students aren't able to completely cover the remaining cost of school not covered by financial aid, there are many instances where that part-time job replaces a potentially high interest student loan, reducing the overall cost of education in the long run.

In some instances, even students whose parents assist them with educational expenses require a part-time job for discretionary expenditures. I have more than one friend whose parents pay tuition, but do not cover the cost of gasoline/car repairs necessary for the student to go to class.
Clicking the Start Tutorial button on the welcome page does some things ("creating virtual machine..." etc) but then just brings me back to the welcome page.
Please use strlcpy [1] instead.

[1] http://www.unix.com/man-page/freebsd/3/strlcpy/
>It's just not worth it to go after customers like you... yet..is my guess and I have been in his shoes... the people wanting free shit scream the loudest but bring in the least value.

I agree. And yet, that is not who I am. If you knew the first thing about my business and my yearly revenue, you wouldn't say that. Your assumptions are baseless, rude, and truthfully told, idiotic.
Canada is so north that at this time of the year it is already not having UVB ray penetration, which is required for the body to make Vitamin D.
Yes, some of it does; but the doses are ridiculously small.
Is there a practical difference between being billed for a plan you were automatically signed up for and being assessed a tax fine?
Maybe you shouldn't spell out every abbreviation (and acronym) when you read? Otherwise it can be "fun" when you read HN comments about the HTML5 WebGL API and the low FPS CSS animations that eats too much CPU power.
Milk is fortified with Vitamin D, but only about 100 IU per serving, so you would need to have around 50 glasses a day to get it. Do you know anyone who drinks that much milk?
Yes but the RDA is 600 IU. That's remarkably effective at preventing rickets, but not optimal. 5,000 IU seems to be closer to optimal, and well below the toxicity levels. You know, so I've read...

Edit: Good Job Team!
http://www.presidency.ucsb.edu/ws/?pid=43912

I lived through that time. There was a pretty sharp line before and after that EO - I never was in a gas line again, and was in the months leading up to it.

Carter had 4 years to eliminate the price and allocation controls, and left it to Reagan to repeal the price and allocation controls 8 days after being inaugurated.

As to it enabling it, the price controls prevented domestic prices from being bid up so that domestic supply could be increased to blunt the embargo. Non-Arab oil imports could raise their prices, but because of the price controlled cheap domestic oil, which they'd be competing with, they sold instead to Europe, etc., from where they'd get higher prices. In essence, price controls enabled the embargo because it prevented the market from responding to and circumventing it.

Reisman goes into some detail on this in the reference I cited.
Most doctors in the US are not experts on supplementation and they are also not paid by anyone to push them.
C?

#include <complex.h>
complex f(complex a, complex b) {
return a*b + 5*I;
}
> I bled for for ActiveAdmin

I know exactly how you feel. Arbre is neat and all but I think it's a bad idea to use yet another language for your admin stuff. I always use partials so I can work in slim. I probably wouldn't switch now but I'll definitely think about it for my next project.
Field propulsion
@pbiggar Thanks for that catch. We updated the homepage.

I'll reach out to you over email because I'm curious about your intercom.io use-case.

I'm also going to try it on our webapp, so we can dogfood it.
The asset pipeline shouldn't really be an issue with precompilation, or am I wrong?
I'm biased, but I'm partial to Myrddin's syntax:

const foo = {bar: @a, baz : asd(@a,foo(@b, bar(@c,@d),int))
...
}
Python does.

>>> 5 + 2j
(5+2j)
>>> 2j * 2j
(-4+0j)
It's pretty simple: grants and loans cover tuition, fees, housing, and very little else, so that $150/week from working part time is what students are living off of.
No, the interest in remedying those problems overcomes the protection to which all speech is entitled. Why do you find this surprising? It's the same way any speech restriction is upheld.

(I'm very confused as to how you came to this conclusion, by the way, and would appreciate an explanation. That it's a matter of what "deserves" protection is exactly the idea the comment you replied to sought to dismiss, so somehow you've interpreted my statements exactly backwards.)
Very smooth - running on Safari 7 on an i5 and a 660ti
One thing that they did at my university about 5 years ago to disrupt just this. A group of ex-students (I think) setup a container outside the main entrance, across the street. There they bought old textbooks from students that just finished a subject, and then sold it back to the students using it the following year.

Obviously the books changed slightly. But they kept change lists, so you always knew if you had the latest info or not. Sometimes, even the lecturers did this. E.g. "If you have ed4, it's on page 400-403, otherwise it's page 389-392 on the latest edition, etc".
Let's say you require each user to use a valid credit card that matches their name and billing address to verify their unique identity. Then you implement the same star rating system as Uber for both drivers and riders. Then you let driver's set their mile and time rates. When I request a ride, the system gives me a list of time-to-arrival, mileage, and wait time charges. I pick the one I want.

It does seem like that would not require an overseers anymore than Bitcoin does.

What am I missing?
I don't know a lot about this Go example, but using a uniform distribution for the evaluation function sounds surprisingly similar to another phenomenon I observed.

Suppose you have a linear evaluation function - h(x) is the value of something. Suppose also the coefficients of h are all positive. Then you'll be right 75% of the time (averaged over all possible h, drawn uniformly from the unit simplex) if you just approximate h=[h1,h2,...] by u=[1,1,...,1].

http://www.chrisstucchio.com/blog/2014/equal_weights.html

So I agree with this claim - uniform distributions are fairly robust to errors. But I don't think that's particularly related to randomness - Monte Carlo is only needed to integrate the distribution.

It's also worth noting that adversarial situations (like Go or Chess) are considerably different than most other cases. In a true adversarial problem, there is no probability distribution - the opponent is omnipotent. The purpose of randomness is simply to reduce the power of the adversary's intelligence - in a completely random world, intelligence is useless.
Amazing. Meditating upon time-lapsed video backed by drone music is something I've been addicted to ever since I first saw Baraka. If you like this and you're not aware of Baraka - watch it now, along with its sequel Samsara and the similar Koyaanisqatsi films.

And obviously, the Baraka soundtrack is a magical fit for this stream!
I get the same error. But hey, please send me a message when you get it to work. I can't wait to try this out. I've been waiting for something like this for a while.
agreed, but compiling the code does have the benefit of providing syntax checking and you are assured the full benefits of whatever JS engine your browser is running. How do I create new algorithms on you site? I could not figure that out.
Maybe not every law is absurd and intended to block innovation but these laws most certainly are. It's a permit that the authorities don't have to grant and won't grant in exactly the cases where the new service is most needed. These laws are intended to preserve for existing bus drivers and cab drivers some monopoly power that they haven't earned via providing reliable superior service.
They did. Housing is the main component of cost of living in the developed world, but to a significant extent that's a problem of transportation, which was mentioned. In the US, housing, healthcare and college fees are the big three, and the latter two were explicitly mentioned.
Google plays down Gmail 'hack', resets accounts
So, worth noting is that we might as well attack the question from a theoretical angle as well as an empirical one, when we are choosing to disregard so many studies due to confounders and the like. It turns out that a surprising number of people in developed countries nonetheless suffer vitamin deficiencies:

Vitamin D deficiency at 41% of population: http://www.ncbi.nlm.nih.gov/pubmed/21310306

Other deficiencies: http://www.cdc.gov/media/releases/2012/p0402_vitamins_nutrie...

It is commonly stated that vitamin supplements do not do anything for people who do not have vitamin deficiencies. But even in rich Western countries, a significant proportion of people do have vitamin deficiencies! So the supplements are not always misguided.

Worth noting that potassium is never included in vitamin supplements due to technical limitations (high concentrations of potassium are cytotoxic). Eat your vegetables! Also worth noting is I'm drunk so this post contains errors...
My doctor in the US has me on a vitamin D supplement and her opinion was unsolicited as to that.

I take them every day, everything's good. I wonder if that's not a normal thing here.
Another way this is dishonest is that the majority of the 18,000 jobs were not even in the United States.
One of the authors, Scott Page, majored in math at the University of Michigan. He also teaches the course "Model Thinking" on Coursera: https://www.coursera.org/course/modelthinking. Perhaps one to avoid...