skysight-inc/HackerNews huggingface dataset:
Everyone in this story has the same information or rather the same access to information. Anyone with know-how and the money to colocate servers at matching engine data centers has access to the same information. Aka every pension fund, insurance fund, mutual fund, wall st. bank (including Royal Bank of Canada, RBC), and prop-shop.

If your definition of HFT is "people/firms who have access to more information on stocks than others" then HFT doesn't exist; notwithstanding illegal insider trading on private information, which isn't what this blog post describes.
A previous employer was a pharmaceutical company that performed all document management for audits, quality, and manufacturing within JDE.
well, 12 is the absolute maximum, i personally prefer a number close to 10. something which has worked quite well so far is a short introduction of yourself and the idea behind the dinner when everybody has arrived. then hand out some notes with the three rules on it. lead by example ;)
Exactly. The "Eurocentricness" of my screenshots is a deliberate choice. I try to hide that I'm African as much as I can. I prefer email support over voice so that our users and customers don't have to deal with my heavy west african accent. Paypal is also blocked in my country (Cameroon), but I've succeeded to get an account set up for me in Europe. Why go through all of that trouble ? I believe the best path for an African entrepreneur is to build something that can compete and be sold at a global level. Right now, 73% of our users are in the USA.
So you are comparing startup cost of a ball with the startup cost of a "few million dollars" to start a HFT company?

I have no issue with the market in general or people making money providing investment to others who need it.

Where I am having problems is when the market becomes it's own closed loop and the money is made inside of that loop. I been on the sideline of this industry for many years now and I have yet to see any company who is successful in the long run be so because they play a fair game.

Reading stuff like this:

http://moneymorning.com/2012/10/15/the-truth-about-high-freq...

certainly doesn't help.

"...What they are doing is trying to influence, I call it manipulate, what other traders and investors do with their bids and offers. They are trying to fake or set-up other market participants to react to the quotes the HFT players fire out onto the exchanges for all the stocks they trade.

Only the HFT quotes sent out aren't meant to be acted on. They aren't looking to buy on their bid quotes or sell on their offer quotes.

Instead, they are sending out orders to "ping" markets.

Ping refers to how sonar works. For example, a submarine sends out a sonar beep which hits a target and sends back a sound (which sounds like a ping) which the sonar operator "reads" to determine the pinged object's distance and shape.

HFT players are constantly pinging stocks where their quotes are housed and displayed. They send out their orders to manipulate others to adjust their quotes, which get fed into the HFT algorithms to determine any directionality; then, if an opportunity exists the HFT computers buy or sell shares that someone else has put onto the market.

They aren't quoting constantly as bona fide "market-makers" are supposed to do, which they claim they are acting like. They are simply putting out millions of fake bids and offers which they pull almost immediately, just to read the movement of other market participants who react to the HFT come-ons.

It isn't illegal. But it is manipulation.

The buyers and sellers the HFT crowd trades with aren't forced to trade, they are willing to trade -- it's just that the prices they trade at may have been manipulated..."

Can you explain to me how HFT benefits society in general? What would happen if we didn't have HFT? Would the market crash? Would there suddenly be no money to invest with?
The article mentions cadmium. This is the first time that I've heard claims that liquid-crystal displays contain cadmium, and actually I can't find anything on the web about it (other than an old patent that I'm not sure is relevant today[1]). Does anyone know more?

[1] http://www.google.it/patents/DE2837433A1?cl=en
What are the ethical (lol) rules against front-running your own customers if you're a market-maker? How could your customers even find out? What happens when the proprietary information is that a customer has just placed a large trade, and you drive up the price before it even hits the market? How is this fundamentally different than the commission these firms already charge?

Market makers are generally proprietary firms that trade their own money, and don't have customers.

Brokerages (ie: Scottrade) have customers and it illegal for them to front run their customers.
What's the easiest way to run your own dynamic DNS service with your own domain? I'm guessing something like Amazon's Route 53 with an updater script, such as https://gist.github.com/natlownes/2061658
Yes. But you get ripped off less in an index fund since in general, they are also run by algos within other algos that just rebalance to match whatever they're tracking. The idea if you're an investment firm is that index funds can hide risky investments: they're often large and they're often not highly leveraged.

In reality, index funds are the safest way for individuals to make money in the market because you're placing a bet on the economy as a whole.
I would argue that we know a lot more about the physics and engineering required to build a generational ship than we do about the biology to cure rare genetic diseases.
Early donors still get their free account as promised. Faith in humanity restored. I am proud to be part of the early DynDNS history in this small way.
I'm a bit confused as to what it means by disappearing, or how to stop it. Does the site chronologically delete memories or does it all go down as memories aren't added?
You must be able to give examples.
It's not just your brain. It's everyone's brain. Human reasoning is fundamentally geometric. What happens when you see people who apparently are able to understand "just scary numbers" is that they are building in their own head these same images. They've had previous exposure to such images and know how to build their own. But in the end, everyone ends up reasoning with drawings.
You're begrudging them their accomplishment because they are currently using her parent's land and electricity?

Hacking together their tiny house on a shoestring budget and documenting the endeavor for others hardly deserve such dismissive disregard.
But far before either of those happen we will have an increasing amount of either remote controlled robots or self guided robots exploring on the fringes before us.
Hey grid, A responsive grid developed in SASS
> Healthy markets are markets where everyone has access to the same information.

This is not true at all! People are working really hard all the time to gain information that they are the only ones they have! If I figure something out about a stock that makes me realize it's mispriced that's only valuable to me as long as that information remains non-public.
I think you're gravely misunderstanding the intended goal and target user for this device. It's not "for consumers" but a path for hardware developers to prototype with a full Pi and then ship with a custom unit that's been configured as needed - without having to modify your code.
Full Disclosure - I'm working at company going through a huge ERP change from one vendor to JDE.

I was told by our .Net developers that JDE is for business analysts so they can do the same thing as developers without writing any code. I've only done a few minor things in JDE, but it seems very "mouse intensive". Lots of clicking this and that, joining this table to that table, looking up this record, etc.

Is this true of most ERP software, or just in the case of JDE?
TL;DR: Stucchio thinks that front-running people is fine in circumstances where it's not prohibited by law. It's legal, therefore morally right, is his argument.

Other people (including very many securities regulators) think that the problem here is that the law is missing a prohibition.
"Whereas in the simulations, the larger populations were allowed to have only one child per couple".

This seemed a little strange to me. If you have only a single child per couple wouldn't you expect the population to at least half each generation?
The Berne Convention didn't invent copyright.
Ask HN: How do people working on advance technologies get their help?
I am a web developer and have always got my problems solved with Google or Stackoverflow. Sometimes, I have got stuck for long hours but only for my own silliness. I believe that is because the web operates on much higher level of abstraction and has an extensive community online.

I wonder how do people working on advanced / low level realms of programming like audio processing, embedded computing or robotics get their help? provided the online community is quite small since you are dealing with a specific low level kind of programming.
What's new here? Did anyone not know that banks make money on currency exchange? The wire transfer is free, but the currency transaction is not. The two are combined in a process like this but are actually handled independently by the bank.
I'm not thinking retail brokerages -- I'm thinking investment banks like Goldman. Often the big i-banks have both prop trading operations and the ability to fill large orders for institutional clients (e.g. a pension fund looking to buy $1 billion of Apple stock).
A Founder’s First Key Decision Is The Business Name
Here's the CIO of Vanguard (who run some of the biggest index funds in the world) saying that HFTs cut costs:

http://www.cnbc.com/id/49434073
Programming Languages are the Least Usable, but Most Powerful User Interfaces
At least up to 1.3.3, if you've already done single-variable calculus, the math isn't bad - it's stuff you likely saw before (if a while ago).

It seems heavier on math than it really is because (I believe) the authors want the reader to see the parallels between math notation (functional, declarative, concise) and Lisp implementation (also functional, declarative, and quite concise).
It's very similar but often faster. The Odroid U2 uses removable EMMC storage which has an SD card adaptor, which I feel is a very good middle ground (most of the advantages of both with the disadvantage that the connector on the board is non-standard).
You'll find this attitude (it's legal, therefore it's morally right) is very prevalent in the investment finance industry. It's as if these guys lack a moral compass of their own...
Best 404 Page EVER
The bug, which is in Firefox, not Youtube, has been open for nearly a year. https://bugzilla.mozilla.org/show_bug.cgi?id=881512
BIND has built-in DDNS functionality, so you don't need extra PHP scripts.
Kosmix was acquired by Walmart in 2011, but I hadn't heard of them before your question. WalmartLabs is part of the R&D group that I mentioned.
Pasadena Roving Archers

rovingarchers.com
If you could invent a starship, you could also invent a new human, designed for starting civilizations. Calorie-efficient, hardworking, has litters of pups for rapid population growth, early maturity (8-10 yrs old), long-lived, prodigious learning and memory, adaptable and happy with rote work.
I wonder what type of applications will come out of this.

For example, I want to build security cameras with Raspberry Pis, but I don't need audio output, USB, HDMI, etc...but I would need WiFi, camera unit, and power. But I doubt we'd see custom IO boards for specific applications such as this, and I don't think it'd be any cheaper than just buying a regular Pi.
Related- The 1 kg Starship, with a lively discussion in the comments, from cstross among others.

http://www.centauri-dreams.org/?p=30313
Show HN: Automated private GitLab hosting
There are not many businesses you can start that cost so little. Even a McDonalds franchise would cost more to start than a small trading firm.

The activity he describes is illegal. Every order you place must be because of a bona fide interest to trade at that time, and not as an attempt to induce others to act or gather information.

If I could get filled on every bid and offer I have in the market I'd be very happy. That's basically what happened to the MMs on the other side of the Knight debacle.

HFT moves liquidity across time, place, and product. It drives down spreads by intermediating trades for a lower cost than human market makers had to charge. The market would not crash if HFT went away, but markets would become less efficient, more trades would go off away from fair values since nobody could correct small-scale mispricings, spreads to customers who immediately want to buy and sell would increase, and short-term volatility would go up since nobody would buffer transient pricing errors. It'd be like if all the grocery stores around you folded and you had to trek up to the meat market and buy things in bulk. It would be very inconvenient and expensive, but not the end of the world.
Stucchio thinks that front-running people is fine in circumstances where it's not prohibited by law. It's legal, therefore morally right, is his argument.

This is completely not the argument presented in the OP. "Front-running" is fine because it leads to quicker inclusion of market information in price and makes large players pay for their own large trades.
Using the same logic, if we were to make a law that forbade it, then he would agree that it was wrong? Perfect!
A somewhat related question. How many people would it take to sustainably maintain current levels of technology if given time to prepare, the ability to bring all of our knowledge (but not realtime communication with Earth), and a reasonable starting set of tools?

Would a generation ship with 10,000 people still be able to build an iPhone when they arrived? A GPS satellite? Is it a matter of knowledge/ability to specialize or is it the economies of scale that make it possible to build compact high tech items?
Questions For Comcast as It Looks to Grow
Forget the XPocalypse: Sticking with Windows XP can be a smart move
Why Marco's (probably) wrong about home-hosting
And you think it's morally wrong even if it leads to better functioning markets with lower costs and better prices for everyone else.

Also, what specific prohibition would you change in the law? And who do you think that would help?
One of the single biggest problems with discussions on HFT is a lack of rigour in the use of terms that mean specific things.

Front-running is a specific thing, someone who has a duty to you to execute on your behalf instead executing on their own behalf. Large market participants have started co-opting this term to mean, "not allowing us to hide our huge information advantage and thereby screw the rest of the market".

They do this because they know the idea of a market run by computers scares people and most people have heard the term front-running and know that it is wrong. They are trying to bypass market dynamics for their own gain, to the detriment of everyone else through public relations/regulation.
if you are doing because you believe in the value and beauty of human society, you wouldn't want to genetically modify their personality...
You might also want to check if you have IPv6 connectivity on your home connection. If all you want to do is to ssh/rsync/sftp etc to your home computers from the VPS, you might get lucky if your provider assigned you a static IPv6 prefix. Then you are just a hosts entry away from easy access (going from VPS to home machines over v6).
Very interesting, but this raises a point in my mind. If a colonisation trip takes several generations to reach its destination, would the human rights of the descendants of the original travellers be infringed?

They would be conceived, born, live out their lives and die without ever living anywhere but the ship (unless they are part of a generation lucky enough to reach the destination), and they would have no choice in the matter.
Chocolate.js: full stack experimental framework updated to v0.0.10 – Reactive...
Also because it is not front running. Front running has a technical and legal definition that someone looking at a public feed does not meet.
Discerning any scientific results from this article was impossible when filtered by all non-scientists. I'm happy to see lay/ethical/moral discussions of research but I'd like to at least clearly see the science first. The information presented in this article wasn't different than what any average group of people could have come up with over lunch, but it's written with this authoritative and dramatic tone like we're all learning something.

They bring up some startling 'scientific facts', that the internet may be permanently changing our brains and destroying reading ability. There's some confused explanations of evolution (or lack thereof) thrown in. Can we all try to understand this first before we zip to a pleasant concluding paragraph from a mother raising kids?
I think it really depends on what you mean by ripped off. I think that institutional investors looking to place multi-million dollar moves shouldn't be able to just place an order and cry foul when it's not completely filled on all the exchanges either. From another point of view, that's the slippage you get from an improper order placement strategy.
Most folks use IEEE floats as their value type, so in a way a whole lot of libraries have supported missing values for a long time. Many languages can use 32- and 64-bit floats; R can only use one or the other (you have to rebuild it to change this). This can make your big data twice as big as it should be. In that, R is in the company of such serious number-crunching languages as Lua, JavaScript, and Splunk.
I thought about the north for sure - maybe Genova or Milano
Ask HN: Quit our jobs, applied to YC, booked flights to SF. Who should we meet?
Hey there!

My co-founders and I are flying up from Melbourne, Australia to SF for a couple of weeks during the YC interview period.

We're diving head first into our own startup (http://astute.io) and would love some suggestions on who we should meet with and where we should visit.

Ping me at hi@ben.gy if you prefer to do comms via email.

Thanks in advance :)
When 10,000 people are housed in one starship, there's a potential for a giant catastrophe to wipe out almost everyone onboard. But when 10,000 people are spread out over five ships of 2000 apiece, the damage is limited.

Whatever you do, don't go on the B Ark.
It's clear the author doesn't understand REST - he thinks that it is a dumb wrapper over a relational database. It's not surprising that straw man burns so well.
> Healthy markets are markets where everyone has access to the same information.

I don't want to sound condescending, but did you read the article? One of the points is that this is exactly what HFT accomplishes:

Bob wants to buy a lot of Apple shares. At this point he has more information than all other market participants. He knows that in a few moments, the price of Apple shares will rise. Is the market for Apple shares -- at this point -- an unhealthy market, because Bob has access to more information about it?

If Bob's large order is larger than the current number of open orders, then an HFT algorithm might see Bob's trade -- where he buys some of the stock he wants to buy -- and assume he wants to buy more, so it adjusts its orders accordingly. This very act disseminates information into the market about Bob's large order (if the HFT algo is right, if it isn't it loses money). Information about Bob's future order is now more evenly spread between market participants, though a higher ask price, reflecting Bob's large future order. The information that each participant has is now more equal than it was if no orders were adjusted, because the buying price has risen as a result.
Tap to Pay (Not So Much in the U.S.)
It would make sense to have a standardised protocol, so you could just enter a URL, username and password.

That way any provider could offer it as a service without custom support in each router.

I think RFC 2136 may support this, but it's fairly complex and needs a separately defined method of authentication, so it's no wonder home routers don't let you set this up.

http://tools.ietf.org/rfc/rfc2136.txt
> dihydrogen oxide

Water's chemical composition name might sound scary while being harmless, unfortunately, the drugs and procedures for cancer treatment are far from harmless, so let's do away with the 'western medicine is always right for everyone' attitude. This is in general most doctor's point of view, and I can understand it, as it is their area of study and practice.

There is another side to this that is mostly unexplored in America. The idea of a dignified, medically unassisted walk in to death. Some people may be ready to die and that is ok. Not everyone wants to be torn apart with knives and chemicals, for a 65% chance of living 10 more years.

The more information that comes out about how medical costs are dolled out at a rate of 80% in the last years of life causing severe unhappiness, depression, and ultimate body failure should shock us all in to taking a look at how we fear and treat the potential for death. Dying in America is torturous. Maybe it's time we stop fearing it and start trying to understand it in a deeper sense.

Much of my option is informed from this Fresh air interview with Dr. Sherwin Nuland on dealing with cancer in America:
http://www.npr.org/2014/03/07/287272150/fresh-air-remembers-...
A significant issue with this website (and a number of other services) is figuring out what the heck you're actually offering.

In this case, after a few minutes, I have no idea. It appears I can upload some sort of website using a node.js application that you provide.

However, websites are written in a variety of languages. Does your tool only support websites written in node.js? What about PHP or python or static websites? I don't know the answer to that question, and that answer is very important to the usefulness of your tool.
Healthy markets are markets where everyone has access to the same information.

If I want to sell 100,000 shares of Yelp (which is a multi-million dollar transaction), the fact that several million dollars of Yelp is about to hit the market is a really, really important bit of information. I have a reason to hide that from the rest of the market at least until I can complete my sale. HFTs profit by ascertaining my intentions faster than I can complete my intended action and then broadcasting my intentions to other market participants via the ticker tape, whereas previously my intentions were proprietary information locked in my head.

An argument against HFT is, necessarily, an argument that I should be allowed to benefit from material non-public information about the near-term state of trading in Yelp.
That sort of smear may or may not be true, but it isn't what is happening in this case. What is happening in this case is that 2 groups (large liquidity purchasers and liquidity providers) have a natural antagonistic relationship with each other. Purchaser always want to lower the price and providers want to raise it. This is good for the markets operation.

But there is a PR/Power imbalance currently in the market. The large purchasers have tons of money had influence. They are using it to smear the sellers of the product they want. The sellers happen to be an easy group to smear (they are highly technical, secretive, and operate in a world that no one seems to understand).

If anything is immoral in all this is that they are actively trying to obfiscate what is happening in the markets and thereby spreading fear.
fund research.
like space tech, cancer treatment, digital brain preservation after death.
CleanMyMac v2.2.3