skysight-inc/HackerNews huggingface dataset:
Family? At least that's what all those disgruntled workers keep saying. :P

Life is meaningless. People just tend to disagree at what existential level it begins to become meaningless. But right now is not meaningless - we can choose to enjoy it. Whether that is by telling ourselves that we have a purpose and acting upon it, or by playing amateur tennis - what's the difference? In the grand scheme of things.

Doctors have a purpose, but only because people are sick. Homeless shelters have a purpose, but only because there are homeless people. Soldiers have a purpose, but only because there are wars to fight. Workers have a purpose, but only because there is work to be done.

Do people have a feeling of existential purpose only because there is some unfinished work that they can finish, some pain that they can alleviate, or something being a burden that they can take on their shoulders? If so, it's a good thing that Utopia can't become real. Because we wouldn't like it one bit.
Thus assuming that someone else will always pay the spread. Tragedy of the commons ensues.

But this whole article seems to be written for retail investors. And as much as HFTs may sound scary for retail traders they make their money off institutional trading. So the larger impact to retail flow is from the response Institutional desks are forced to take to ensure they are not disadvantaged by HFTs, which then affects how institutional and retail flows are able to interact.

Ultimately a 1000 APPL.US order will get filled and who pays the $0.01 spread is largely academic as it is an inconsequentially small part of the total settlement $ paid.
It's a wise choice - the comments are often terrifying.
JFYI To be hit by a meteorite you would either need to be close to the Earth's surface or for somebody strong to throw it. Technically it is not a meteorite until it impacts with the Earth's surface, therefore this object may actually be a meteoroid.
We already regard some profitable activities (e.g., slavery, child labor) as unacceptable, so there's no reason a priori to rule out considering whether HFT falls in the category of "too detrimental to society to allow".

Likewise, the more esoteric forms of finance (CDS) and the people who made them and continue to game the system greatly contributed to the recent recession without suffering any of its ill effects.

And furthest down the chain of societal damage are photo sharing sites and chat services, which mostly just waste time and supplant the revenue of film/phone companies.

If you're implying that considering HFT's societal worth is as silly as examining photo sharing services, you're mistaken.
After it is sold, I'll download it from the usual 0-day torrent sites :-).
Interestingly, and although all my anecdotal evidence disagrees with this, on the short term sleep deprivation supposedly does the opposite [0].

I have trouble with insomnia as well, and my experience is basically the same as yours. If I don't get at least eight hours, the brain fog is so thick I just can't function. It doesn't make sense to me however, because many people I know can function perfectly with little to no sleep.

I've been looking into supplements to improve the quality of sleep. The most promising so far is glycine, which has at least some science demonstrating its efficacy (in both sleep quality and consequent daytime performance) [1]. Some anecdotal experience from reddit also makes it seem promising [2]. Also on my list to try are ZMA and low-dose melatonin.

[0] http://www.nature.com/scitable/blog/mind-read/an_unconventio...

[1] http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3328957/

[2] http://www.reddit.com/r/Supplements/comments/1a899m/what_do_...
Like with Django, I find angularjs difficulty almost always merited.

When I am struggling with "agh why do I have to do it like that" in either framework I later find that either 1) the difficulty was necessary for some important reason and they're saving future me from easy mistakes or 2) that the difficulty was due to me not knowing some really amazing concept or paradigm or pattern.

This isn't to say that angular is perfect, but damned if it isn't elegant, powerful, and well thought out.

I've found angular to be by and large incredibly intuitive and easy to use. But there is also an effect of they're solving pains I've had in prior projects, and using concepts I'm familiar with.
The Batista regime, which came before Castro, was much worse for the people of Cuba. The US supported the Batista regime because of commercial interests. I'm not going to argue that the Castro is a saint, but the people of Cuba are definitely being treated better than had Batista stayed. No thanks to the US of course, which did everything it could to reinstitute a more corporate friendly dictator in Cuba.

Now it seems hating on Cuba has as much to do with winning votes in Florida than it does with corporate interests. The history is still revealing, the US has never intended Cuba to become a democracy and would not welcome a Cuban democratic state. All past and presents efforts instead focus on Cuba becoming a vassal, puppet state to US commercial interests.
SEEKING FREELANCER: Remote.

PROJECT: Help build an iOS classifieds app.

MOTIVATION: Making it easier to sell your stuff. (and to a lesser extent, discover new stuff to buy)

SKILLS: iOS development. (objective-c, c++, cocoa etc)
The project is called 'Octopus' and our temporary website is at octopus.org.

My e-mail address and more about me is in my profile. Get in touch with any questions, or ask them here and I'll try to get back to you.
There is a lot of 'unless you're selling 100000 shares in a hurry you shouldn't care', but if an HFT 'rips off' a pension fund I very much do care- even if I'm not personally affected I'm sure the added cost will be passed on to the state somehow.
No, even in terms of treating symptoms, its still unjust. Even from an external, symptomatic view, there's a difference between a recreational "high" from a drug and someone successfully treated for depression with the same drug.

The fact that the observation of that difference precedes understanding of the underlying mechanism responsible for it doesn't make the difference any less real.
Here on Hacker News there are a lot of people who use English as a second language. And there are a lot of hackers here who speak English as a native language who neglected their writing courses in high school or college in favor of more programming courses. So I am not surprised by spelling mistakes here, and only point them out when they are especially jarring and likely to lead to further misunderstanding.
> Helping Castro's controlled economy before giving control of the government and said economy back to its people is unpopular.

Unpopular with whom? Are you telling me that Cubans (meaning people who actually live there) support the embargo? Because that doesn't really make sense.

> If I were in charge of the project, I figure I'd probably also avoid giving this project a U.S. brand as to not catch the attention of Cuban censors or propagandists.

Yet, here were are...

> At first glance, this seemed like a nice attempt at helping the Cubans get around these limitations.

Well, making that true at first glance was the goal, right?
Yeah, but if they (the HFT) are not there the only thing that seems to change (in my naive understanding) is that there is no "tax" on liquidity, but the liquidity is still there.
> OK, another example for you: The parliament MOVES from Brussels to Strasburg EACH MONTH!!!

That is not "another example"; that is easily the most ridiculous waste of time and money in the EU. There's plenty of other waste, but none of it compares even remotely to this.
> "I think humans like to do things. Make games, write software, build sandcastles, etc. Removing the need for work would not remove the work. The work would just be what we found to be entertaining to ourselves, instead of a job to eat."

This is part of the issue that arises. I've spoken with many people about the concept of a low-scarcity, low-growth, etc... leisure economy and the responses are surprising. "But then what will people do?" "What will motivate them to work?" "Why would anyone want that much free time?" Some people just don't have passions strong enough to drive their lives.

Keynes also addresses this in the above linked article, saying:

"Thus we have been expressly evolved by nature – with all our impulses and deepest instincts – for the purpose of solving the economic problem. If the economic problem is solved, mankind will be deprived of its traditional purpose.

Will this be a benefit? If one believes at all in the real values of life, the prospect at least opens up the possibility of benefit. Yet I think with dread of the readjustment of the habits and instincts of the ordinary man, bred into him for countless generations, which he may be asked to discard within a few decades.

To use the language of to-day – must we not expect a general “nervous breakdown“? We already have a little experience of what I mean – a nervous breakdown of the sort which is already common enough in England and the United States amongst the wives of the well-to-do classes, unfortunate women, many of them, who have been deprived by their wealth of their traditional tasks and occupations – who cannot find it sufficiently amusing, when deprived of the spur of economic necessity, to cook and clean and mend, yet are quite unable to find anything more amusing. "

I haven't dug for any data but at first glance it seems that many of our societal "vices" could be responses to this lack of purpose. Some of the socialist humanists touch on this topic, what happens to a man without purpose? Drugs, pornography, violence, depression, striking out and grasping for any sort of stimulation while flailing in a search for meaning.
It is a fallacy to believe that businesses operate efficiently simply because there is a profit motive. Businesses are complex organizations made up of people, with all their failings and weaknesses (if you want to call them that). It is not necessary for a business to be perfectly efficient to survive, it is only necessary that its competitors be equally inefficient.

I like to point this out to anyone who says "well, a business wouldn't do it if it made them less efficient", eg the case of open floor plans for programmers: https://news.ycombinator.com/item?id=7507280
Interesting project, exciting news -- but! to me, using Chrome, the supposedly "scrolling" and "3200 x 8000 pixels" image is neither. Nor the second one, "an impressive 3000 x 5000 pixel view of the urban area surrounding Santa Cruz de Mara, Venezuela", which looks like 1000x800 and doesn't scroll or click through to anything bigger.
Lately, I seem to be hearing a lot about drugs of the "psychedelic" variety being used to treat thugs like depression. psilocybin, DMT, MDMA, Ketamine. The thing that jumps out at me is that they sound like / claim to be treatments in the way that antibiotics are rather than in the way painkillers are. IE, you go through treatment and get "cured."

Please correct me if I am wrong but as I understand it most medical treatments for mental illness is of the painkiller variety. It relieves symptoms while taken consistently and patients either stay medicated indefinitely or the illness runs its course while the effects are mitigated by the drug.

Are there any established treatments that we understand well of the antibiotics variety? Mental illnesses that are cured by a course of treatment rather than and indefinitely ongoing one.
Plug in the camera and check out the footage!
For anyone interested in more information, I׳d recommend reading the comments in these two threads [0,1] from Marginal Revolution blog. Two HFT traders wrote thoroughly about HFT. I׳ve never read such an interesting and broad online discussion about HFT.
I actually spent most of yesterday׳s afternoon reading these threads.

[0] http://marginalrevolution.com/marginalrevolution/2014/04/mat...
[1] http://marginalrevolution.com/marginalrevolution/2014/03/new...
In response to (1), I always assumed that people talking about the "little guys" being ripped off were generally talking about the little guys holding money in institutional funds whose trades were being front-run rather than the professional money managers themselves. Of course, in most cases these "little guys" are probably being ripped off far more by the fund management fee, but still...
German startup Doo rebuffed acquisition interest from Dropbox before shutdown
It's quite obvious that more people are interested in upvoting articles related to popcorn time right now than xbmc.

I'm sure when xbmc was first released it would have had it's fair share of coverage on HN back in 2002.
I recall the following: "The factory at the edge of town has two employees -- a Human, and a dog. The Human's job is to feed the dog. The dog's job is to keep the Human away from the machines."
> Happens all the time, unfortunately. Now, whenever I work on a project, the very first thing I think about is how the distribution is going to work, and then build the app around that.

This. Make something people want is the first step, then you need to figure out the distribution.
Harvard discovers three of its library books are bound in human flesh
Sometimes the only thing differentiating a documentary from a comedy.

Although a comedy without laugh track easily turns into a show with long, awkward silences.
RESTistential Crisis over Hypermedia APIs
Drug-induced euphoria and depression are not mutually exclusive feelings. Ask any depressed person who's taken psychoactive drugs.

If ketamine functions as an antidepressant, that's a distinct and unusual effect.
> It strikes me that the EU and the USA are really going in different directions in governmental philosophy.

You don't have the right perspective: The EU project since 2008 has show all of its flaws. It has been heavily jeopardized and it's in the brink of collapse. All these politicians in Brussels are not directly elected. Actually there's a huge discussion if they should be considered elected or appointed. Since the -crisis stepped in, the European Parliament has been reduced into a Clown. No decision is being made there and it's seen by the entire north and south as the mother of all evils. Germany is in control now.

So in order to get back some support, it is trying to become more social. Up until now the only good thing that ever came it was the ridiculous USB thing (where companies all use USB adapters and not different forms). Other than that, it did nothing to promote the values theoretically stands for.

And if all this sound naive, mind you, in my country Euro-philes were at a rate of 95% up until 2007, now it's less than 35%... They don't make gallops because local politicians are afraid of the results
Qualification and Certification of Software Systems: Just Software Bureaucracy?
I really wanted to avoid going in a discussion between gems trying to replace FormBuilder but I feel there needs to be some clarification.

I have used simple_form, and I have used many different gems in the past. Simply saying that using simple_form solves every issues completely misses the point.

There's a lot of forms out there that are built dynamically that needs a lot of conditions and evaluations to build the gems. CSS class can be added/removed depending on the current status of the user. This kind of things CANNOT be easily done with simple_form.

For example, what if I need to add a class to the form if the user is an admin? Would you create a helper method for that? Or a ternary condition?

If I mentioned simple_form in the very beginning of the article, it's possible that I did it so I would avoid this kind of facile counter-argument. I guess I was wrong.
Original announcement by MrGrim, 5 years ago:

http://www.reddit.com/r/reddit.com/comments/7zlyd/my_gift_to...
That doesn't do anything. Then you never get any shares, and the market moves higher because there is a 100,000 shares on the order book and the market will move higher for legit reasons.

The way not to get scalped, is to place the order in a way where it arrives at all the exchanges at the same time, that way the HFT guys and their microwave data links can't peek at your order on BATS, and then beat you to the other exchanges.

The accusation is they see the 100,000 share order hit BATS, 10,000 get filed, then the HFT guys buy 90,000 shares on the other exchanges before your order gets forwarded, and you are stuck paying the HFT guys $15.02.
Agree that things haven't progressed much toward an ideal of rigorous science, but the process you're lauding of first identifying a cause and then designing a cure doesn't mean much when you're just making up stories for both things, which is essentially what those good old days were.
1. It׳s not front-running as nobody can actually see the order book before a transaction happened. what you describe is a sort of arbitrage based on different latencies. It may be morally wrong, but it׳s totally different from front-running.
These two issues are actually perfect counterpoint to bypassing kernel caching and scheduling. There is no way to overcome first issue in userspace, second is trigered by what amounts to too agressive caching in userspace, and third is something that you should not be doing anyway (I'm not exactly sure if there is something better that kernel can do in that case, except doing write-thru caching on writes which has it's own performance implications for other users of O_DIRECT).
We prop up worse with less concern.

The real reason we won't drop the trade embargo is that it's a very powerful bargaining chip, for whenever the Cuban government decides to talk.
Why not just use IntelliJ?
Use a popular CMS like Wordpress, Drupal or if you're language specific e.g. Python, Django.

That way you can worry less about the marketing site and more about the product. It also means you can hand-off content and copy to someone non-technical if required.
> One objection that comes immediately to mind is that it may divert from a search for the actual cause of depression.

That's an insane objection, because understanding of how different depressions (depression isn't one thing, its just a set of symptoms) respond to different treatments is one method of determining the causes.

Linking observed symptoms to environmental factors (both those that precede the symptoms, those that occur with the symptoms, and those that cause changes to the symptoms) is a fairly essential part of the normal scientific method of determining the mechanism behind the symptoms.

That it also helps people in the here and now is a not insignificant side benefit, of course.
And one of the reasons that software like Oracle is so complicated and expensive. Oracle spent years getting the OS kernels out of the way, partially for platform consistency/supportability sake and partially for performance. They obviously still depend on the kernel for a variety of things, but memory management, networking, filesystems, etc. can all be done in Oracle-space at this point.
Yeah, but that's true of Prozac, as well. It turns out that depressed people are definitionally ineffective at finding the root causes of their problems, and if you cam artificially suspend the feedback loop, then they might have a chance to diagnose and fix the underlying problem. And then of course for some people, the underlying causes are already gone and the depression is just a standing wave of feedback, and temporarily inhibiting the cycle is enough to cause it to stop.
> I wondered how this technically works, and the answer is over here:

It was described in the article but perhaps not as clearly:

"What happens is that, if there's a CNAME at the root, rather than returning that record directly we recurse through the CNAME chain ourselves until we find an A Record. At that point, we return the IP address associated with the A Record."
Our economies also have this tendency to siphon off surplus and spend it on expensive military projects such as wars. There is the general year in year out expenditure on new military toys, keeping the nuclear 'deterrent' up to date and keeping those boys polishing their boots. We don't get a proper tax breakdown on this expenditure so I would only be guessing as to how much is really spent.

On top of this regular expenditure are the billions that have been spent bombing Afghanistan and Iraq to pieces. We have been saddled with debt to pay for that and it won't be the politicians that will be personally paying that off.

Although a lot of people don't wish to see it that way, war is a racket. Nobody would bother unless there was money to be made. The waste goes far beyond the lives lost and the taxes diverted, there is also a real loss of valuable materials and energy resources. It is all an incredible waste yet we are always told that 'defence' is good for jobs.

Given the default option for siphoning off the 'fruits of capitalist surplus' is more and more bombs and weapons, that is kind of what we all work for in our variously inane jobs. Isn't this a fantastic situation?
Last I checked that was only true for HBO subscribers, which you can only get through cable systems. So their content isn't online in the sense that puppetmaster3 means.
This is very interesting for the use of ketamine. My wife is currently undergoing a ketamine infusion for RSD/CRPS. RSD/CRPS is a crippling pain disorder, and ketamine infusions are so far the only thing that has given her any relief. Hopefully things like this will help to get ketamine treatments covered by insurance, because it is insane that they are not covered for those suffering RSD/CRPS.
Lyft Raises $250 Million in Car-Sharing Battle With Uber
When you tell a broker "trade on my behalf" and he trades first, that's front running because he is obligated to do what's best for you. Other market participants do not have the same duty.

To make an analogy: my boxing coach is obligated to give me good advice and he's a jerk if he doesn't. The other boxer is not being a jerk if he feints and then punches me in the face.
Thank you, I didn't know you could prove that!

I believe my disagreement was specifically about this (quoted):

> In principle a computer can correctly recognize 2 apples as

> being 2 apples without knowing anything about addition and

> without being able to recognize 1 apple.

I have a hard time seeing this. If I am not mistaken again, there is no definition of the symbol 2 that does not include addition. The proof above doesn't really prove this either as Peano's axiom rely on the definition of "successor". Successor definition: "a+1 is the successor of a".

http://mathworld.wolfram.com/PeanosAxioms.html

http://mathworld.wolfram.com/Successor.html
Article makes a lot of sense.

I don't think there's any evidence that we should be curtailing our consumption of salt anymore (although I'd be interested in the details if there were still reasons), but the main reason for me to curtail salt intake is because eating too much salt lowers my ability to taste salt, and salt is good.
Getting quick execution is nice. It's part of getting a good price - the price I want at the time. Retail investors would normally go to the back of the line, do you think human brokers and market makers are fair?

I execute fairly quick trading strategies, I hold a stock from a day to a week, being able to sell at the peak of an up day or unload shares when the market is just beginning to move against me, as opposed to minutes or hours later is everything.

And as another poster said, most of what HFT is, is market making... (Even traditional MMs made their money on arbitrage)
Interestingly you cannot meet both potassium and sodium dietary guidelines:
http://www.ncbi.nlm.nih.gov/pubmed/23507224

I'd take any such guideline with a grain of salt :)
I'm not sure about the Q language, but their C API reads like obfuscated C contest entry:
http://kx.com/q/c/c/k.h