skysight-inc/HackerNews huggingface dataset:
>It seems like you take issue with that fact that stock price changes have become more correlated. Is it bad/wrong/unlawful/unethical that traders may want to sell(buy) stock A when the price of stock B decreases(increases)?

It suggests the market is no longer performing its intended function of allocating capital to those companies that will use it most efficiently.
That would be like saying "since everybody already knows about Apple and their products and they are bringing in substantial cash, they can cut their spending." But instead, Apple has been increasing their ad spending as revenue has gone up http://gw5.appleinsider.com/article/?id=14437 (bit old, but still holds).

Personally, I know that I only reach for a groupon or a coupon of any sort when it's shoved in my face. For them to make such a drastic shift amidst questionable profitability on exactly the first day of a new quarter makes me inclined to agree with the author and say that it's a strategic shift in direction.
Trading is different from the initiation of capital investments through different vehicles like stock and bond issuance and the creation of value through M&A. Again, if the argument is trading specific versus wall street abstract, there is a point to be made.

Think how much bacteria is in our body, take it all out and we don't run as efficiently. program trading is the same.
I'm glad we have such staunch defenders here and at the head of the Patent Office. This is nice to read, and Ask Patents is a great concept that perhaps you can be a part of.
Sounds very much like pallet's stevedore.

http://palletops.com/doc/reference/script/
https://github.com/pallet/stevedore
They are testing their theory that their ad spending amounts to capex. will be very interesting to see what happens. if ad spending jumps back in Q4 or revenues plummet then its probably the final nail in the coffin for the IPO valuation. if not, then for the first time in a long while my expectations for groupon long term will tick up.
Not just physics students. Anyone who has to deal with geometry should learn it. Anyone who would otherwise study trigonometry, linear algebra, vector calculus, complex analysis, projective geometry, &c. should learn it first. It’s a much better set of mathematical tools for understanding spatial relationships and transformations than the alternatives for many if not most purposes.

For anyone dealing with computer vision, graphics, or modeling type fields, I recommend the more recent book “Geometric Algebra for Computer Science”. http://www.geometricalgebra.net/
Sometimes "unboxing" is just about getting something out of the box.

Sometimes we take it all too seriously and forget, as another poster said, that our norms are not everyone else's norms. Thus, "all those passive people" might well have had their experience ruined not by being deprived of some unboxing experience, but by having to wait while every person ahead of them opens their box to make sure the phone's there, working/can be activated, etc.

It's too bad that the poster's experience wasn't what they wanted it to be, but really, seriously, don't make it a bigger issue than it really is and don't assume everyone else has the same issue, even given the same treatment.
Faunus: Graph Computing with Hadoop
Hi @calinet6. Sorry to hear that you've been having issues with your account. Please send a mail to support@airbrake.io or support@exceptional.io (depending on your product) and we'll be happy to look into this issue for you.
Responsibility is a strong word that is unwarranted. It would be nice for Twitter to continue to operate the API in an egalitarian and fair manner. They are under no responsibility to do anything.

But that's besides the point. The crux of it is:

Twitter took you all for a ride, and screwed you at the end. Your solution is to put together an online petition calling on the big bad man to see the light and do the right thing...?

You've got nothing on Twitter, they have no reason to listen to any of you. It's time to cut your losses, move on, and learn your lessons about building on closed platforms.
As with a lot of posts on Steve Blank's blogs, it contains a lot of good observations but hasn't been very well thought out. Recommending that entrepreneurs target niche markets makes sense, but you shouldn't prefix that advice by implying that a venture-backed startup that fails to reach a $100 million valuation "sucks". And as other people have pointed out, since when is $100 million a useful cutoff for success? By that metric, should Viaweb's inflation-adjusted exit be considered a failure? One gets the impression that the number was picked simply to generate a low success rate, and subtly encourage people to buy the author's book.
Apple's incessant need to obsolete their old operating systems is surprising to me. I would think this would hurt their overall adoption rates (especially long term) as people get sick of constantly upgrading their OS and dealing with any fallout that results.

I for one will never run OSX again due to the constant need for upgrades. I have one of the original Intel MacBooks (with the Core Duo) and after upgrading to 10.6 my wireless card quit working. Rolling back to 10.5 fixed it. Although, with their popularity skyrocketing, maybe I'm the only one who has issues with new OSX versions.
well Twitter certainly does not want Developers, to build successful apps using their API's. So the only way to solve this problem would be just, stop using their services.
Sick of seeing iPhone 5 tweets?
Designing a Creative Space
7 Years of OSM Growth animated
It would be bizarre if Google provided old versions of Chrome. Chrome tries hard to make you not even notice what version you're running, running a version that is not the latest is against Chrome's ethos. They would have to be special builds too because the first thing it would do is upgrade you to the latest (if your system is supported of course). That would be amusing, but useless.

> Google's stance is that they only support the latest version. Needless to say, this policy hasn't been popular with web developers who need to test older versions.

It's actually extremely popular with web developers because almost everyone is on the current version. It's awesome.
>Of course in the past I do believe people did make more long term investments. There were places to put "widow and orphans" money. Not sure that is the case today anymore (is it?)

I think you can find them if you look for them. Though generally I'd say stick your money in a low-fee S&P 500 tracker; if that's too volatile for you, you probably should be keeping it in cash rather than investing.
The server is not responding right now and Google Cache is empty. Any one got a copy of this?
But specifically, how do you think an NDA could interfere with this?
this would be the worst strategy ever. So instead of becoming the major search for web and places/location on what would be close to 90% of the worlds smart phones, they instead would give up all the data and being the default search on the ios platform. Theres no way people are going to abandon ios over a sub par maps app.
I guess the question is, what happens if you make a fake ID card with all your legitimate/correct information.
Another nice addition (that will never happen) would be to make variable declarations final by default, and adding a var keyword to declare them mutable.

Also, pattern matching would be nice.

Wait a second, this is all starting to look a lot like Scala.
Why the /sigh?

Is it because you don't agree that backend development is complex? Or do you feel differently about the front-end being the part that really matters?

Personally, I'm impressed by this. It seems to me a compromise between MeteorJS/FireDB and "traditional" stacks. It also comes with its own environment to organize my code? Something about that is a little appealing. Maybe limiting too, but appealing.
That's fair. But I think that's getting pretty far from what Cuban was complaining about.

I also don't think that "government decisions can have a big impact on the economy" is a new phenomenon.
Not trying to troll you but where did you read apple spends 10x on packaging? Not only do you sound spoiled, but you also sound uninformed. I'm sorry that your experience was ruined but its just a toy.
Ever since the development of the Knight Rider in the 80's the Knight Foundation has always been a leader in technology. Thanks Michael Knight and Kit for your continued support of new technologies!
It seems most likely that contract negotiations broke down and Apple lost access to Google map data completely, leaving them left to replace the Maps service as quickly as possible. There is no logical reason for Apple to just walk away from a good deal just because it is Google.
i'm about to make a nuanced, technical argument, and i don't know if it's correct. if you understand it, your feedback is appreciated.

so, i believe information asymmetry is possible. i believe that many good ideas are in such a relationship with the world that the people who have them have an asymmetric advantage over those who don't: that possession of the idea equals wealth, as long as you are attempting to execute. (wealth in the net-present-value sense, not liquidity sense.)

this gives you the interesting situation that you can be walking along the road and, if you are the right person and respond properly, you can immediately in a bolt out of the blue become richer by the net-present-value of the idea you are just struck with: provided it is one of those asymmetric ones and you proceed to execute on it.

now. now, for the larger ideas (like Google), the net-present-value was in the millions. but if the people doing it had actually had millions of liquidity, they would not have been coding: they would have hired a coder.

so please assume p, where p is "a person with a net-present-value of $n million is currently coding something which will make money and then allow him to hire coders. assume that with probability 1 he will succeed."

as he is coding, before he actually has succeeded, what business is he in under p?

i would say he is in the information-arbitrage business. he is coding at $0/hour against the net-present-value of the idea he has. it seems to me kind of an arbitrage thing.

this is assuming p, which means that this is an assymetric condition where with probability 1 he pays off. obviously it becomes more complex as we get into probabilities other than 1 - but is this a fair conclusion about the startup hacker?

that he is arbitraging information asymmetry?

as i mentioned at the start of this comment, this is a technical argument and i'm not sure of its validity. any feedback is appreciated.

if you hate my assumptions (specifically, p) i still would appreciate to go with them as well as any other thoughts you may have, which you can address separately.
Get Ready For Branding’s New Frontier: Hedge Funds
How do you equate "mysterious" with good visual design?
RFID Tracking Of Students? Electronic Roll Call in Texas Stirs Debate
What's Pattern Matching (in Scala)
Seth Godin: You might as well quit if you are going to be average
`It is getting increasingly difficult to just invest in companies you believe in.`

I disagree with this. How many people believe in Apple as a company and invested in it's growth over the last 8 years. Or Target over the last 3 and there are many others.

The challenge as I see it is that it is very difficult for the companies to actually leverage the growth in their stock prices. The companies need to buy and sell their own stocks in order to use the money as investment. Unless I am missing something huge here. Most of the time it seems it is only an incentive to management that the stock price increases. But really, the capital isn't invested in the company, it is gambled on the company.
The page is unfortunately not loading, and there doesn't seem to be a Google cache for the page.
You can't effectively say "they don't owe me anything" and say "they owe us a fair and open attitude" in the same sentence and expect to be taken seriously. They don't owe you anything. You don't pay them for anything. There's risk in piggy backing on another service. There always has been and always will be. This same reaction occurs every single time an API gets closed, changed, or altered in ways that developers don't like.

If anything, you provide a disservice to developers by invoking and promoting such a, pardon me but, whiny attitude towards something that should you should understand to be basic business.
Yes. You got it. You are the only one. Next.

Maybe Apple's "incessant need to obsolete" is part of their secret sauce. They're doing pretty well for themselves these days. Look at Microsoft, Captain "Never Break Anything". How are they doing?
Microsoft still supports Windows XP. Apple does not still support 10.5.
In order to make money on a trade, the share price needs to move. So you've got algorithms whose attributes manage things like how much of an actual order is exposed to the market at one time, or how much they adjust your bid or ask as the order progresses. I've got some algo documentation whose algo "Watch Out For" notes warn "may be too aggressive and cause impact" and "must watch out for order size that adversely impacts market". But maybe you're a trader that decides you want to be "too aggressive" with your trade and now you've moved the market because you've used an algorithm in a way it wasn't intended to be used, and your employer's risk controls didn't care or didn't catch what you were doing until it's too late. Net effect is that your trade may sway the overall market in a way that moved that company, or that company's sector, or maybe the whole market depending on what impact your trade had.

And all of that assumes the algorithms behave in a way that they're expected to. I like this example from Amazon's pricing algorithms: http://www.pcmag.com/article2/0,2817,2384102,00.asp but you could apply the same concerns to pricing matters of the stock market where the unintended consequences of poorly-conceived strategies have a destabilizing effect on pricing.

HFT allows all of this happen so much faster than could have ever been done manually. And when high frequency trading is being done by entities with enormous balance sheets, and an increased tolerance for risk due to assurances by the government that they'll be bailed out should they make a bad bet, it's got the potential to destabilize the entire market.
So you don't have to look it up like I did, 10.5 Leopard came out five years ago. I'm sure they know the usage numbers better than me, but the number of people who haven't upgraded in five years and who use an alternate browser has to be quite small.

And FWIW, Apple requires 10.7.4 for Safari.

Update: in a by no means statistically valid way, I pulled the stats from Google Analytics for my website over the last 30 days... 186,883 Mac visits (if it shows where things are going, iOS had 814,201 visits!), with 33,934 using Intel 10.5.X. This is higher than I was predicting (18.16% of total Mac visits). It's actually about 3 times higher than the number of people on 10.8. However, most of these people are using Safari and just 2,040 were Chrome users( 1.09% of total Mac visits).

If anyone with a more Mac heavy site has numbers, I'd be curious.
p-a-r-o-d-y
>Why is there such a witch hunt against high frequency traders?

There's a decent chunk of jealousy involved; I think it's mostly the way they seem to be making a large amount of money while not doing any "real work". Compare the general attitude towards lawyers.
Please just change the heading font to something more readable!
I got hit backwards. My CV had PhD (failed) on it. I had had a chunk of good jobs, tried to start a bank, got nowhere, went back contracting in a dept with a lot of academic firepower.

After I had been there 8 weeks someone made a crack about 'all you doctors' including me in - and I said 'I'm not a doctor'.

'Your CV said you had a PhD' came the response.

Luckily I had my laptop at work with the original copy of my CV on it. I went ballistic, phoned up the recruitment agency, and finally got them to send a formal letter to the people who had interviewed me. I never did find out who 'tidied up' my CV - but a dodgy CV is just a burning fuse on a bomb that could go off anytime.
When you guys have time do you think you could have install instructions for my own env. Or are the instructions for installing from source at the bottom all I need?
So you spend millions (or billions, even) on research, then someone can just come along and copy that work? Where's my incentive to do all that R&D?
I love updating my Mac. Each new version makes it better, and problems seem to be minor and rare. It’s worlds different from the Windows upgrade <del>rat-race</del> <ins>process</ins>.

That said, yes, the hardware seems to have a shorter shelf-life than would be ideal. Your computer is, what, 2005 vintage? Seven years is too short, but still an old age in the world of technology, and longer than most competitors’ hardware lasts.
I agree that the system is not perfect because, lets face it, computers are not always that reliable. However, this is a problem that solves itself. If an algorithm goes haywire and drives the market down temporarily, that computer stands to lose a whole lot of money so there is tons on incentives to fix or retire that particular machine.

Otherwise it would be easy to make a very profitable algorithm on the back of the machines that create flash crashes by detecting those crashes and buying tons of shares when they are discounted in order to sell them back when prices returns to rational levels. By buying on the crash this algorithm would push the price up thus reducing the price swing.
Step 1: don't call it "Sci-Fi". Its science fiction. No need to abbreviate it. It marks you as a noob.
Part of what makes Apple so great is that it holds itself and the companies it does business with to a higher standard. I don't want to see that standard slip. Even this AT&T rep, who was obviously not very good.. could have been given some guidelines to follow that would improve the experience for everyone.
Juiced: How a DIY newbie built a solar iPhone charger in 3 hours
There's another reason, I think.

Making a site look fashionable (and web design is really like the clothes industry in that sense) will require the authors to revisit it avery year or so, whenever the design fad du jour changes.

While black text on white background is like jeans and t-shirts - not too hip, but always acceptable.
HFT is gambling, pure and simple. I bet the price is going up, someone else bets that it isn't. Personally, I don't have a problem with gambling and I don't care if other people do it. It certainly sounds sketchy, given that they are using millions of dollars of other people's money. But they know the risks and they do a decent job of managing them. This is no harm, no foul.

I think part of the point (maybe Cuban's point) is that gambling isn't helping anyone, either. Financial markets were designed in theory to get capital to the right companies. HFT is a lot like a Native American casino...there was something much more profitable to do with the real estate than it's intended use.
خلفيات ايباد 2013
You're not clever, you're just rude.
"If This Then That" Brings Automation to Our Favorite Services
I think "100% factually correct" is reasonable, but "100% complete" is not. Is "2 + 2 = 4" a lie, because it does not also mention (for example) that 2 + 3 = 5?
Not if the market share for 10.5 is super small or the cost of maintaining older APIs is too high.
Show HN: Twitter meets Craigslist. Built on Meteor.
If you use Python, you might enjoy using Sentry. It's great for collecting errors for a small team.

The only downside I can figure is that it doesn't integrate with any ticketing system.
It's it, by definition, impossible for everybody to be above average? Wouldn't that just constitute the new average?
Perhaps in theory, but 10.5 is a small slice of OS X users (and three versions behind, now, which means more than it does in the Windows world.)
> I would think this would hurt their overall adoption rates (especially long term) as people get sick of constantly upgrading their OS and dealing with any fallout that results.

If by constantly you mean one time during the last five years, then yea that would be pretty annoying. The vast majority of people have moved onto a new computer or done at least one upgrade. Updates used to be more of a pain, now you just hit purchase and wait for a little bit.

If you haven't upgraded your computer in five years, you should be able to live with a browser than won't be upgraded anymore either. Apple requires 10.7.4 for Safari so you were abandoned by the Mother Ship a long time ago.
"The thing is, you have to talk to potential customers or you're taking on more risk than you need to. Yes, you can build something "useful", but what you and I find useful might be useful to 0.0001% of the population and not have wide enough appeal to make a business out of.

If your product is simple or easy-to-understand enough, your conversation can be a simple sales pitch and a preorder form -- if you get the orders, customers want it. Boom, validation. Don't waste your life building something you and your buddies/family think is useful until you find a bunch of people willing to pay you for it."

I'm sorry, I completely disagree with this line of thinking. When you make something useful for a market large enough to make a successful business out of, there is no mystery. I think we lie in the product development phase by telling ourselves that we are going to make X much easier than it is today but in reality we are just making an additional way to do something that may or may not save people any time or accomplish something that they couldn't do before.

Yes, people do lie about what they need/want, but there can still be money selling into that market. What I'm referring to is obvious, large jumps in innovation. Would another system for writing down todo's sell if I could integrate it with Outlook? Maybe, maybe not. I'd have to hear more and have it demoed, etc., etc., etc. In any case I probably wouldn't pay anything for it.

How about a car that travels on 1/3 the gas of a typical sedan and costs $300? I'd be interested in buying that no matter what. It turns out the challenge is not in understanding customers, but having the ability to build things that are really, obviously useful.

Obviously those are extreme examples, but if you look at a more granular level, the same applies. If you have to complete some job every day that requires three hours, and somebody shows you a tool that can automate much of the work and have it done in ten minutes, I think it's safe to say you'd open your wallet. Most startups don't provide that type of utility, and thus fail at closing any customers.
Edit title please, should be 2007, not 1997.
The obvious reason would be that to make it work nicely as a compiler, they wanted to make it pull in files and compile them. It shouldn't be terribly difficult, though, to patch it and make it compile in-browser like CoffeeScript does with special script tags.
My thoughts exactly. I remember when I read the article about the Google approach I thought...holy shit.

If the _best_ Google could come up with was throwing manpower at the problem then anybody else should think really carefully about their solution if it doesn't involve similar manpower.
How Best to Keep A Wish-List
I have, and I've been told the bug has been fixed and I should not see the issue again. I've been told this twice now (1 month apart). I think hearing "the issue is resolved" is about as finished as the issue can be, I guess I can only hope it doesn't come up a third time.

So, your uptime average is slowly creeping up again. Otherwise we're relatively happy with the service—it's just that there isn't much "otherwise" besides simply viewing the stack trace. Honestly there's not much to it.

Congrats on your achievement and all, but it's difficult for me to get excited about an app that any competent programmer could probably whip up in a day or two.