skysight-inc/HackerNews huggingface dataset:
Sigh, did no one notice that the link is in a <span id="hide"> ? Look at the style sheet and note that class 'hide' sets the link to be the same color as the background (it makes it invisible to humans) and yet it got clicked on anyway.

There are bad actors out there, they exploit services, and one of the ways the services detect them is to create situations that a script would follow but that a human would not. When they do something bad you've got a couple of choices, cut them off or lie to them (some of the Bing markov generated search pages for robots are pretty fun))

So she sends an email to the address provided, they talk to her, she gets educated and they re-enable access. If it happens again the issue gets escalated. Its the circle of fraud.
If I had access to free coffee every morning I would grab 2 cups every morning. :-)

I do get what you're doing here. By making an external commitment to people, you simultaneously get up on time to meet your commitment, feel better about meeting it, and get a little exercise. And $35 a week can pay for a round trip ticket to Hawaii at the end of the year.
I was treated similarly and subsequently labeled a "spammer" in his issue tracker, because I pointed out that OpenCart's password hashing is woefully inadequate.
Interesting post but it's hardly news, a few years back when facebook was struggling to make money I remember reading a detailed article about how facebook delving into advertisement could mean the end of the web as we know it and by that it meant the end of ad-supported websites.

First facebook ads would drive online ads pricing towards the bottom, then it would make obvious something almost all of us know: online advertisement is mostly an overpriced scam that doesn't work and most netizens despise.

Then the usual business model to support costs for running a website would crumble and disappear.

Sadly I can't find this article now (thanks to google tweaking its search engine, it's now hardly possible to find an old results or anythine relevant past the first half of the first results page), but I remember it pointed out that facebook users are much less receptive to ads than google search users. People using a search engine are actively looking for something and ads can be actually be useful to them, but for people looking for social interactions with people they know ads are quite useless and an annoyance.

Right now facebook lack of transparency and accuracy in their ad business means more profit and less trouble for them while hiding the elephant in the room, so don't expect the situation to change soon unless they're given incentive to do so.
When I was a freshman in high school, every other Tuesday I went to TrueCar's SFRuby meetup. Everyone I met there was super nice, and it helped me stay sane while I was in high school. Thanks for that. Glad to hear they're doing well!
I also found the racial commentaries problematic and unnecessary. That said, the author is in no way trying to suppress Mr. Lewis's speech.

Disagreement is not censorship.
Merged mining has good incentives since it basically gives free money; for the same work of mining Bitcoin you can mine Bitcoin and Namecoin simultaneously.
Ah ha, thanks for the further correction! Well that makes me feel better about the likelihood of someone taking Colin's work and profiting handsomely off of it.
I don't follow. What is the Napster version of this? As far as I can tell, Music is still supported by the large players, and revenue-through-distrobution-wise, its indies who seem to have suffered the most.
I'm surprised there weren't more financial technology firms on the list. French mathematicians seem to be behind the guys of most software requiring hard financial computation.
If HFT adds no value, rigs the game, adds cost to everyday investors and traders looking to make an honest fair buck from the markets, will it be allowed in the future?

I almost feel like SEC will come down on them hard.

Basically, I'm bummed at the idea that as individuals, we can't innovate in this field without ponying up several million dollars in startup cost.
> Girls born since 2000 in the developed world are more likely than not to reach the age of 100, with boys likely to enjoy lifespans almost as long

I'm sure this is backed up by studies and references, and at the same time I am amused at the hubris of making this statement. It's a cheap prediction to make, given that it will be around 2070 before you can verify it - and how right it is depends on lack-of-catastrohpies (e.g. in 20 years we'll have an idea how the meltdown in Fukushima affects lifespan), same-rate-and-same-kind-and-availability of advances, etc.

And before you criticize me for being "anti-sciece" - I am not, and unlike a lot of other assertions, this might technically be science (I haven't reviewed the source material) - however, it is not useful science because it may take 70 years to falsify.

Furthermore, a lot of -- perhaps most -- extrapolations of past trends had been wrong. At the time of Wallace & Darwin it was "scientifically" extrapolated that food will only grow linearly. And in 1980 climate studies had shown that if we don't do anything (and we didn't) by 2000 quite a few coastal cities will be underwater. If I wasn't anonymous, I'd place a long bet that the data crunching that led to this prediction will turn out to be complete rubish.
That's correct. As long as the exchange to which the order is routed is presenting NBBO at the time the order is executed, then the broker is compliant with Reg NMS.

Also note, if that exchange is not offering NBBO, it is bound by Reg NMS to route onward to the actual venue that has NBBO. The exchanges are also bound by Reg NMS, not just broker dealers.
So let's try an experiment to see what happens: https://news.ycombinator.com/item?id=7532584
> The big discussion "groups" on the other hand were mess. It was impossible to find where new comments in old threads were posted

Funny, this is the exact same problem I see with google+.

We're using hangouts to do some cross-continent roleplaying sessions, and g+ is a natural fit for having a discussion group/notes -- unfortunately it has horrible mail notifications (you get a notification, but not the content of new comments) -- and is pretty buggy (with posts randomly disappearing when you're accessing g+ across devices).

Having a few parallels discussions is almost hopeless -- and this is just within one "community". I couldn't imagine using it for anything involving more than a handful of people.
It was Googles first attempt to create their own social network. In the end, it crashed and burned just as hard as Google Buzz did.
We use Slack, we absolutely love it (I can't emphasize this enough).
Cycling in Traffic with confidence
OK

100k principal, add 1k every month for 30 years. Compound at 7% --> 2M

50k principal, add 1k every month for 30 years. Compound at 7% --> 1.6M

Withdrawing 50k today costs you 400k in retirement

400k = 20% of 2M = 8 years of your 40 year career
"First, note that Facebook seemed to have charged me for non-unique users clicking the ad, as well as myself clicking the ad."

This sounds like a bug (or a feature, i.e. fraud).
This is ridiculous. Not everyone uses Chef, Docker, etc...
ShowHN: Android / iPhone apps for my Arduino speaker and outlet control server
I was just sitting in the coffee shop (Awaken) and saw a poster advertising the job. Shot them an email and signed up. I think I got really lucky, but I'm sure there are similar opportunities out there.
I got something similar (about $0.11 per click, $0.18 per install) on my Android game:

http://bigosaur.com/blog/28-facebook-ads-android-players

You need to use the targeting options, otherwise you're wasting money.
The whole Mozilla thing is a little bitter-sweet for me. I'm glad that we've progressed to the point where actively working to deny another person equal rights is no longer acceptable, but I wonder if this was really the best use of our time and "outrage." Eich wasn't an activist or even a huge contributor as far as we know. I support sending a peaceful, voluntary message - but in retrospect, I think we sent it to the wrong person and company.

The article makes some good points and some weak arguments (the Obama comparison is bizarre), but the author makes little distinction between holding a differing view and contributing to causes that (IMO) encourage discrimination and unjust inequality.

In other words, I think it's fair game to boycott and protest supporters of anti-gay-marriage bills, but we (myself included) should have focused on something with greater impact - a "real" bad guy. There are hundreds of politicians who are actively working against equal rights, and a lot of big money going to them and pro-discrimination PACs. For those who support equality in marriage, that's a better place to start.
This story hilariously epitomizes the gulf that lies between the tech scene and the rest of the population. For you a low paying job is a hobby to keep you in check, I'm sure only so long that it doesn't impede your "real job". For most, these jobs are an important source of income. Doesn't it strike you as slightly obnoxious to take such a job away from someone who needs it? I can see this story ending up in Mike Judge's "Silicon Valley". Here's a better "hack": hire smart people away from low paying jobs for your startup, pay them more, and go for a bike ride in the morning.
You should do it. I worked with PowerShell a few years ago and it was much better experience than shell scripting with bash or tcsh or others. Things I liked:

You get an IDE for free. It's quite usable out of the box and it's really nice for learning the language.

It's less reliant on punctuation. There are a few special symbols and they are highly regular in their usage. Syntax feels more readable (to me) than that of bash thanks to this.

You deal with objects. You can reflect on them (great for exploration), call methods on them, while still having generic ways for composing them and manipulating in large quantities. Yet the language itself is not object oriented, which makes it much simpler than it would be otherwise.

You get the whole .NET to use. Or most of it. You can basically instantiate and use any .NET class (and COM objects and other such things) without hassle.

There are a few concepts in the language which unify many concepts from the system. For example you can "cd" into a directory or a key in the registry or a network share or any number of other things which can be thought of as a listable resource.

This is coming from a programmer, so it's missing things probably important for sysadmins, like security management and built in process of signing and verifying scripts signatures before running them.

One think I didn't like: it was slow. The other: nothing worked on it (I mean things like python's virtualenv, which comes with .bat file, but not with .ps1 file), even Visual Studio command prompt. I ended up writing some PowerShell code for translating cmd.exe variables to PS ones.

And, of course, it's Microsoft, so forget about running it somewhere else. But, all in all, if you have to script something in Windows, it's by far better than any other tool.
Show HN: Leading Snowflakes – my self-published eBook for devs who want to lead
You don't have to buy Netflix to get House of Cards. Previous seasons are available on DVD, iTunes, et cetera.
We failed him? How overwrought can you get?

He wasn't incarcerated, executed, sued, or tried for a crime. He lost his job. As we're all fond of implying here, there's no right to employment, let alone the right to be a CEO.

Don't hide behind "meritocracy" and "tolerance" to defend morally repugnant ideals. You demean those words and yourself. You reveal your lack of understanding of what an open and free society means when it comes to the more vulnerable, less privileged members of same.
I try to take a break from proving progress and preservation by reading hackernews and of course I find someone talking about 15-312 :/ Either way, I would agree with you in recommending the text.
I think it is due to multiple factors, but mainly the small, targeted scale of the audience, the usefulness of the product to that audience, and our first mover advantage.

For example, with less than 50 €, the ad has already been seen by around 15 % of the total audience. No matter how much we throw in, it's going to be going slower and slower from now on. But it is enough for us to get seeded among a few hundred medical professionals, and then rely on word of mouth to carry us forward.

Edit: It's also a free app, just to make that clear.
Manoj Narang of Tradeworx has stated their average holding time is up to 10 minutes. Is he taking risk?

http://washpost.bloomberg.com/Story?docId=1376-N2CB0F6TTDTQ0...
Mozilla's Gay-Marriage Litmus Test Violates Liberal Values
> Why is this "moral" when it's a person doing this on a time scale of seconds or minutes, but "fraud on the market" when it's a computer doing it on a time scale of micro or milliseconds?

Its not always fraud, but some the of tactics get pretty scammy. One highlighted in Flash Boys is a classic bait-and-switch, perpetuated with perverse fee incentives of a "taker rebate" on BATS BYX. I said more here: https://news.ycombinator.com/item?id=7532902
It's not achievable (although maybe periodic batch auctions would help), it's a thought experiment as to why this particular scenario isn't quite the same as reacting to a large order in principal. Specifically you cannot decide to remove orders during the initial transaction of a big buyer or seller.
There is nothing about HFT that is analgous to insider trading. Unfortunately the people describing it in public like Cuban simply don't understand what's going on. There is no non-public information at work here.
How is that specific to facebook ? Also this looks a lot like what OP did which failed to be even close to be as succesful as search engine ads.
Amazon 2012: $61B revenues and $39M loss.

To say, net income may not be the best indicator of success for high growth tech companies. They reinvest every dollar to continue to spur growth.
Show HN: InstaMotor – Taking the pain out of selling your car
I'm not too sure. A lot of people in the cryptocurrency community are saying that something like Namecoin is going to be the second major blockchain-based technology after payments, so maybe it just got the right kind of press at the right time, as you say.
I am not saying I agree with this, but allowing gay people to be married gives them rights to adopt children. If you believe that the foundation of society is traditional family and that children should be raised, when possible, in a traditional family, you could see why someone would appose gay marriage.
This isn't the iOS prompt, however, which can only appear once.
I now that projects like http://druid.io use HLL to do timeseries analytics. Can someone explain or link to an explanation about how counting sets cardinality can be used for time series analysis? (Do I need to add I haven't find a satisfactory one myself? :).

Naively I think it could be done by factoring in a timestamp on the things to count:

PFADD SOMEHLLVAR "#{timestamp1}#{event1}" "#{timestamp}#{event2}"
PFADD SOMEHLLVAR "#{timestamp2}#{event3}" "#{timestamp}#{event2}"

PFCOUNT "#{timestamp1}#{event1}" # -> 1
PFCOUNT "#{timestamp2}#{event1}" # -> 0

etc..

The problem with doing that is that you would need to iterate through each second in a given range to find out the count of specific events... Also, seems like a pretty wasteful way of encoding time <edit> thinking about it is probably not wasteful in the sense the hll size should be the same, but probably sub-optimal some other way
Unreal in particular is a big win since its the base of so many games.

Also...you forgot Source.
> In fact, C is marvelous in its simplicity and is an excellent candidate for it.

While I don't disagree with your comment, I'd like to point out that the Oberon language (used in pjmlp's suggested book) is even simpler than C. It's worth checking out if you value simplicity in your programming languages.

http://www.inf.ethz.ch/personal/wirth/Oberon/Oberon07.Report...
Thanks for sharing the info! You were actually talking to Drew, one of our engineers. He was logged in under a different name -- but you could have easily asked him hairy questions about automated backbone testing too :)
The real problem, at least for me, is sports. I only have cable for hockey, football and baseball. Ala carte would be the holy grail.
Posting an order and canceling it is fair game. When the order is in the market, it's a live intent to trade. When it's canceled, it's no longer a live intent to trade.

Would you recommend this as advice to YC companies looking to secure VC?

Tactic seems ripe for abuse in M&A negotiations as well.
My (non-expert) take: HFT is a tool and it can be used for good or bad. Potential good uses may include: reduction of bid/ask spreads, improved liquidity and faster arbitrage of things like ETFs.

However, it can also be used for bad:
http://www.sec.gov/News/PressRelease/Detail/PressRelease/136...

In that link, the SEC charges that a certain firm employed a trading strategy using non-bona fide orders to attract interest on another (bona fide) order. This involved submitting orders on the other side[1] to simulate interest.

HFT makes such strategies viable, or at least more viable.

1. http://www.nanex.net/aqck2/3598.html

EDIT: Corrected to remove inaccurate information.
I was surprised that I got quite a few new channels after the digital transition. Most of them are not that good, but it is interesting how the lineup expanded.
There's nothing scammy about inverted venues. Those who choose to trade there do so knowing they will get hit first. Buy siders who don't want their brokers to leak information when sweeping should get better brokers. These are professionals we're talking about here. They should have the wherewithal to understand the market they are participating in.
Don't be contrary just for the sake of it. Tencent is currently dominating the APAC market and that fact alone 'provide[s] more ideas and interesting discussion' than a coming soon page.
'Average' holding times don't help understand the issue. You could have one position that was a long-term bet

edit: I did not imply that none of the hft strategies were taking market risk. The ones that scalp certainly seem to.
Hi Guys, Val here from InstaMotor. We’re trying to be to car dealerships what airbnb is to the hotel industry.

We’d love to get some additional feedback on the service. Any feedback provided is super beneficial. We’re specifically looking for some feedback on:

1. When you get to the site, within the first 30 seconds, do you understand what we do. Why or why not?

2. If you do understand what we do, would you ever use a service like this? How much would you be willing to pay for this service?

3. What’s the biggest benefit to the service that you see?

4. Any general feedback on the site the content, the service as a whole would be great.

Thanks for the help guys, We always appreciate it!
In the REAL real world, the bagel place has a guy with a truck who drives around delivering bagels.
> Google has Google Groups which interfaces with usenet.

Yeah, for a typical Google idea of interfacing -- you can't get Google groups as usenet, but you can get usenet as Google groups (the web front-end).
Spring-cleaning Unused CSS With Grunt, Gulp, Broccoli or Brunch
It doesn't cost several million dollars. It does require some capital, likely less than your average valley angel deal. It is not easy and you'll probably fail, but you can certainly try. Phone up Nasdaq, they'll happily give you all you need to know along with pricing information on their website.
I will only tolerate such behavior in one and only one instance: when the issue is a human rights violation.

But where does it end? Do people start boycotting companies because one of their board members are not opposed to abortion? Do people start boycotting companies because the CEO feels that Michael Jackson was not a pedophile?

In the end my favorite quote on free speech: "Sir, I disagree with you whole-heartedly, but I will fight to the death for your right to say it."

Also, what if since then he has changed his mind? These things happen, people had wrong opinions and through argument have changed them.
The fear you feel is not a red flag
Today I got out of bed at 3pm, I'm a student and know I can get away with working through the night instead.

I know that, like the article, if I have a reason to get up, it makes it so much easier for me!

Defiantly a tactic i'll employ if one of my ideas starts taking off!
Article author here. Just wanted to add that if any of you work for companies that send engineers to the IETF, there is an Internet-Draft RFC that would normalize the use of several P2P pseudo-TLDs such as .gnu, .zkey, .onion, .exit, .i2p, and yes, .bit, which is what Namecoin is squatting on. Would be great to see everybody supporting it.

http://tools.ietf.org/html/draft-grothoff-iesg-special-use-p...
I can't believe I forgot to mention Nightlife at the California Academy of Sciences on Thursday nights! GREAT program!
Amazon Fire TV Review by The Verge
How to Create a Workcation (And Get a Free Trip)
New Hall Careers Page w Parallax Scrolling
> He lost his job.

He quit his job. It may be that he was forced to quit to avoid being fired, but that's not at all clear.
"Then the client was clunky and slow, nothing else on the web felt as slow even with such little graphical sparkle. It was basically a side-by-side email client by look, yet acted like it was folding proteins or mining bitcoin in some worker thread."

It seemed to be a heavy user of memory iirc?
I'm not saying Facebook is astroturfing, but there seems to be a lot "new" accounts when these thing come up.
I like this story for a couple of reasons, it forces the wakeup (always good) but it also enforces regular exercise. I'm going to have to figure out how to do something similar.
Night Walk in Marseille [video]
Sounded good except for 'toxins' which I pretty much always see used as a pseudo science catch all. Do you have some cites for that being an actual process?
It's internet bullying by the internet mob.
The action you link to was not perpetuated by HFT. The vast majority of Lightspeed's business is good ole fashioned screen traders, and that is likely what this was. Previous actions for spoofing and layering were also the result of manual traders using regular day trading tools.
The whole pinging to cancel seems like it could really end up compounding into problems, it is abuse of a needed cancelation system.

What happens when it spams so much that it triggers other market reactions? (Flash crashes - which seem like it would happen more as more HFT is increased as you don't have the balance of unpredictable individual investors. HFT vs HFT only in the market, who wins?)

What effect does this have on exchange systems bandwidth / capacity / reliability?

Pretty soon every trade one makes will have to fire off 10x the fake orders to stay camouflaged. What happens when HFT DDoS the whole market with fake orders? Right now HFT is trying to fly under the radar but it could get more intense if not checked early at least with some sort of limit. A good market is a fair market, noone wants to start the race a lap back.

HFT skims now but what is in place when HFT decides to take.
Too true, that.

However, I live in the midwest (Indiana) where we do not have similar protections over things as basic as sexual identity. It really is that backwards here.
John Stewart had a really interesting interview with Michael Lewis this week about HFT:

http://thedailyshow.cc.com/guests/michael-lewis
5-year-old discovers exploit on Xbox One
This gets you close with Amazon: http://stackoverflow.com/questions/3984254/send-users-to-a-p...