skysight-inc/HackerNews huggingface dataset:
> Also note that these are not costs of production, these are what people wind up paying for it

Cost of production and what people pay are two different things. A true accounting would include cost of production and externalized costs. Doing that doubles the price of coal: http://green.blogs.nytimes.com/2011/02/17/tallying-coals-hid...

> Even the study’s most conservative estimate of the uncounted cost of coal — $175 billion a year — would more than double the average cost of coal-fired electricity, the authors found.

And most of that is from well-understood and well-measured health impacts of coal pollution:

> At this lower range, roughly 80 percent of the costs were from well-documented public health impacts like lung and heart disease

So you pay $75 per megawatt hour for coal. And then the poor sap who lives downwind of the coal plant pays another $75 per megawatt hour for your electricity use in the form of dying early from lung cancer.
As funny as it is watching him explain how he understood it, the fact remains is he probably understood it better than the majority of people in that room.
> My first reaction to reading the title was "why?"

You're reading Hacker News. You know what "exit" means.
I import nested XML into Excel all the time. You will need to create an XML Map first. Look under Excel/Developer/XML Source/XML Maps
Sure, but now you're trusting your entire infrastructure to a black box which can be passed around to anyone with enough money. There are trade-offs, and you have to consider everything when comparing features, including the license.

Also, no way I would do anything important on my phone. These things seem to be about as secure as sieves.
Haha every single one of the comments on the blog is negative.
Bare in mind that the system used to be centralized and, as mentioned in the article, was much costlier [0]. The fragmentation has downsides and no one likes redundancies, but it is a direct response to the older, less competitive system. The fact that a decentralized system is better is exhibited in the lower price and the participation in the smaller exchanges.

[0] http://www.bloombergview.com/articles/2014-03-31/michael-lew...
We're looking for the exact same thing, mobile apps and team management.

I've yet to find any open source software that does team management. Even multiple open source tools that work together to create this functionality would be great.
-webkit-overflow-scrolling makes scrolling feel like native, important for web apps and web views. It's like when you make an overflow: scroll div, and you make your main content inside this it.

It also ads the permanent url bar at the top and the navigational arrows at the bottom. This is useful for some web apps, because if those weren't permanent, you couldn't have buttons fixed on the bottom. This is because when you would click them, the back/forward arrows bar would appear pushing your button up so you have to click it again.

I used to use it but I've stopped because it's a whole level of complexity on your complex app.

I wish iOS safari scrolling would feel like native. Many people are using this property for this reason only, sacrificing screen space (the always-on browser interface). It used to be worse with the small screen of the iPhone 4.
Twitter, Snapchat, and Instagram Are Just Making Every Human Event Feel the Same
Heathkit Shop
Of course this can't be DoubleClick only.

But please tell us more about the business model, I see you're a Google employee.
Hi, author here. It could be called genetic programming, if one considers an expression to be a program.

Each individual in the population is encoded as a binary string representing an infix expression, with 0...9 becoming their binary representations (0001 through 1001) and the operators `+`, `-`, * , `/` and `* * ` (exponentiation) represented as 1010 through 1110.
I think as Socality Barbie has shown, these "moments" are becoming quite mundane and similar.
Remedy Plan: Cancer Containment Therapy
This reads like an architect's whining that she is not allowed to build skyscrapers. But surprise, people are also part of nature and sometimes they want to feel as such. I don't want to check my phone for the weather, I'd like to look up and see the sky. If it rains, I want to get wet. If sun is shining, I'd like to feel it on my skin. I would like to hear birds singing, preferably real ones and not some recorded "ambient sound, birds #42". If asking for an outdoor playground for my kids is "fetishization of the past", then, hell yes, sign me up for that.

Once upon a time one could actually impress people by building skyscrapers, but that time is over. Now we all know that it is possible, the novelty wore off.

And the argument about saving resources: There are only very few places in the world where space is at a premium.

I wonder what Christopher Alexander would say about that article - while his "Timeless Way of Building" did resonate with me because it was all about "humans first", this article is just the other way around.
Legalized quote stuffing.
RE/MAX Remains a Global Franchise Leader
Realogy Launches $1.15B Senior Secured Credit Facilities
And get hit from behind? No, thanks.
Of course. Everybody should run private email servers, and not go thru centralized corporations that spy on you, and let the NSA and other secret services spy on you.
Online Auction Marketplace, Invaluable Experiencing Record Setting Growth
Because they're gaming the market. How it works: place a large order, wait for others to make a bid, then cancel the order and sell your own at a mark-up.
> Modern desktop CPUs are incredibly fast and run circles around modern FPGAs

Yep. At a tiny price of tenths of W of TDP.

FPGAs shine in communication, not in computing. Fast isolated memories, wide channels (as wide as you like), etc. And there are far more tasks where you have to juggle gigabytes of data as fast as possible than the tasks where you have to maximise FLOPS.
I don't think that's a fair comparison really - one of the main complaints against systemd is that it's taking on too many tasks, init plus NTP, cron, etc etc. Those modules are superficially optional, but in reality, a great deal of them will be turned on in any distro using systemd.

The init system should be an init system and nothing else, IMO, so targeting all that extra complexity (which was my original point) is fair game.
http://youpronounce.it/search.jsp?q=quay

First video: American mispronouncing as "kay".

Second video: American mispronouncing as "kway".

Third video: Brit correctly pronouncing as "key".

Otherwise, amazing!
Unfortunately not. https://discussions.agilebits.com/discussion/2846/new-produc...
>Allowing totally unmoderated comments could lead to the worst aspects of the interent - bullying, harrassment, doxing - as well as open the organisation hosting the comments to legal issues.

Or it would lead to people learning to finally handle those things.

The problem with bullying in real life is the physical threat. You can't ignore that guy at the bar or the school bully. On the internet you very much can.

>People may enjoy participating in flame wars, but they don't bring much value to the reader.

Those people participating are also readers. As for readers not interested in that, they can skip the comment section (in most websites those are hidden behind a button or in the bottom of the page, after ads, etc).

>By far my favourite discussion websites are the ones with agressive moderation policies and a financial barrier to entry. That seems to do wonders to encourage thoughtful and interesting comments.

I like to talk with people that think in a different way than me, including people from other cultures, political affiliations, etc. So something like that would not work at all, it will be a self-selected echo chamber for the most part.

For some things thats OK (e.g. HN is a tech-focused site, so you want to keep discussion to those areas). But for general news stories (something like Medium or CNN), no.
I think to understand most HFT market makers you have to understand how the markets pay.

Most work on a maker taker model. Which means the trader who initiates the trade pays a small fee and the trader who is the passive side, the one who had their order in the market already, gets paid a small fee. as a side note there are inverted markets but lets leave those aside for now.

This means to get paid you want to be at the top of the book, which means you are the first order to get filled when someone crosses the spread to get their order filled. the way priority is determined is first by price and second by time. So you have a very vested interest in being the first to cancel and move your order to the newest price level.

Exchanges have tried introducing some order types to alleviate this constant send/cancel routine such as the order type "Hide not Slide" but people tend to get upset at these order types.

Once you understand this, you start to realize that almost all HFT firms aren't quote stuffing, they are just jockeying for position at the top of the order book.

I've never really understood quote stuffing, the same firm that quote stuffs still has to deal with those quotes coming back, its not like the market data has a flag saying ignore this quote change as its caused by your own quote stuffing.

The way most markets are setup is that quotes come from gateways and multiple symbols all share a single gateway, usually assigned alphabetically, so A-F tickers all share the same gateway. This means that if someone is actually slowing down market data for say AAPL then they are also slowing down quotes for AMZN as well but again, the same firm that is quote stuffing also has to deal with their own mess so I can't see the benefit.

Another comment complains that HFT firms don't like the fragmented market. That is true to a point, but keep in mind most HFT strategies only work due to the fragmented markets and RegNMS. So while they may not like 11 venues, they certainly want atleast 3 or 4, and many of hte top HFT firms run their own dark pools, adding to the problem:)

As far as Hillary Clinton introducing legislation to curb HFT trading, she was the senator for New York. I'm dubious of her coming down hard on Wall Street.
Fragmented exchanges are better for everyone except for high frequency traders. Then they actually have to do low latency arbitration to make money instead of full on front running like they do now.

Arbitration between physical locations is something that can't be helped. The other things ways that high frequency traders make money can be helped by better systems, but there are no incentives to make those systems when exchanges make so much of their money from high frequency traders themselves.
John Arnold (former Enron energy trader) also posted something on Bloomberg View, and the main gist of the article was:

Front-running is profitable against traditional orders entered by humans. But with spoofers in the mix, the picture looks quite different: When the front-running HFT algorithm jumps ahead of a spoof order, the front-runner gets fooled and loses money. The HFT’s front-running algorithm can't easily distinguish between legitimate orders and spoofs. Suddenly the front-runner faces real market risk and makes the rational choice to do less front-running. In short, spoofing poses the risk of making front-running unprofitable. Because spoofing is only profitable if front-running exists, allowing both would ensure that neither is widespread.

http://www.bloombergview.com/articles/2015-01-23/high-freque...
Correct me if I'm wrong, but that article talks about particulate emissions, something which even the cheating VWs don't have a problem with - the datapoint that led to this whole thing coming to light were high NOx emissions, not particulates.
This is true, but my first reaction was as a LastPass customer not as an observer of the company.

I also agree with colinplamondon's comment "The thing I liked about LastPass was that it seemed like the highly geeky, less startupy approach to password managers, more likely to be run for the long-term, less likely to be at risk of an acquisition."

So the thought of them seeking an exit never crossed my mind.
Combine that with high frequency trading analysis and you have a nice target for someone who wants to shake up the world of finance a litte.

I'm not against something like that, but if you don't have a human oversight somewhere you are bound to run into trouble. Just look what happens when a twitter account gets compromised.
> the story of high-frequency trading is basically one of small smart firms undercutting big banks by being smarter and more automated and more efficient

Is that true? Isn't there a high barrier of entry? I was under the impression that large trading firms were building high-speed connections, which is obviously not something a small firm could ever do.
Facebook Supercharges the Like Button with 6 Empathetic Emoji
Completely agree - in the single exchange markets you see a lot of monopolistic behavior with the operators.

In this current, though, we have three major operators with 2-3 exchanges each - many with single digit percentages of market share. I suspect that the savings in execution cost due to competition are vastly overwhelmed by the increased cost of infrastructure for most market participants (excluding the largest firms).
The new albuterol inhalers are inferior to the old. The "innovation" was the removal of CFCs (asthma inhalers were an exception to the CFC ban, until recently). This required new, patentable, formulations (though the 'active' ingredient remained the same), which gave us the sucktastic, easy-clogging, overpriced sulfate-based inhalers we have today. The pharma companies were all too willing to go along with the EPA on this one. The FDA and EPA would have you believe this transition went smoothly for asthmatics. They are lying.

Some people are allergic to the new inhalers (sulfates can irritate the airways), which led to the creation of a black market for the old ones, but that supply is bound to run out eventually.

With insurance, I pay about $40 for one of the new inhalers (If you're poor and don't have insurance, you get to die, I guess). Generally they make my breathing more constricted for a minute or two until the albuterol kicks in, so I try to avoid taking a hit from my inhaler unless I'm really having trouble. Nice. Fortunately, since I moved to a beach town on the coast of Florida last year, I haven't needed my inhaler very often. Unfortunately, I'm no longer willing to relocate for work (dirty, city air is the worst), now that I've found a place where the air isn't trying to kill me. :)
Using Dropbox for Security seems like a oxymoron? I fail to see that as anything I am willing to use.
Well it'd all be news. Here's the steps:

1) Fed makes announcement (news generated)

2) Machine traders read news and make appropriate trades

3) Markets move (if big enough, news generated)

4) Machine traders see markets move, possibly make appropriate trades

5) Markets move again (if big enough, news generated

Each movement in the markets, if it were big enough to be news worthy, would generate a news event. That is ok, because news readers would want to know about large market movements (well other news readers would - I really wouldn't). It's up to the traders to decide if they want to keep buying/selling.
Screenshot of the interview from the source.

http://i.imgur.com/r3nBUEe.png
China today has nothing to do with communism. If you talk about the cultural revolution and communism that's fine with me. But there's nothing really left in China that you could call communist.
you can get around the 1:1 ratio of docker container to host by introducing service discovery. We are using ECS + docker with consul as our service discovery solution. We have an edge gateway using Zuul, with our routing filters hitting consul to get a service endpoint and port. Then forwarding the request to that service. It has been nice sofar and allows us to run multiple containers (same service or different service) on a host.
Hm, I suppose you're right, yes.

Could probably come up with interesting things to use API endpoints for, too. :) but my initial thoughts were about something else, I agree.
Scaling of these solutions is what we need to worry about. Scaling wind and solar to actually provide energy on the scale we humans consume it is a totally different question that "how much does this cost per mega watt hour".
One of the MGSV walkthroughs was my most recent run-in to this.
Truecrypt appears to be compromised.

http://www.zdnet.com/article/truecrypt-critical-flaws-reveal...
Online freelancing needs a rejig to reach startup and entrepreneur clients
Shunting-yard algorithm
This is probably the best comment in the whole thread. In fact, you can't get "rich" unless you're a founder in a startup. (And no, this isn't sour grapes! I've made money in Silicon Valley, and continue to work at age 53 in a new startup.)
It's an interesting question. One part of the the answer is that the idea is for there to be a single subtree off the root where "the operating system" lives. Where MacOS 10 has /System, OS/2 has \OS2, Windows has \Windows, and Digital Research DOS has \DOS, systemd Linux has /usr.

Of course, another part is that this is an old idea, already implemented once in the commercial Unices a quarter of a century ago. They merged /bin into /usr/bin, with a symbolic link from the former to the latter.
How to master fear in order to conquer social situations
One of the reasons I chose 1Password over LastPass is because you can choose where to store your data (iCloud, Folder on your System, Dropbox). I don't think you should trust your passwords to any company.
It's less complex in the same way that a C program is less complex than equivalent assembly - the complexity is just moved one layer of abstraction down, but it still exists, and can still bite you in certain ways.
Business model is the same as any other content website. Monetization through ads, paywalls, etc.

Same as before, just with happier users including myself. Happy users are good for business in the long term.
makes the point that this startup culture with a focus on exits and maker founders and VCs rich is often not beneficial to our customers
Fannie Mae and Freddie Mac manage only about 40% of the mortgage market in the United States. Now, that's big enough to have a significant effect on the entire rest of the market but they do not control the entire mortgage market.
There was a huge market movement on a hacked AP tweet claiming Obama was injured/under attack a while ago. If you're doctor evil, this is your new best way to make a lot of money. The appropriate regulatory body would probably notice a bunch of activity in way out of the money options prior to something like that though.
Unfortunately, it isn't Bre Pettis who will suffer from this, but the innocents who work there.
> Fragmented exchanges are better for everyone except for high frequency traders. Then they actually have to do low latency arbitration to make money instead of full on front running like they do now.

This is a very strong statement with little support. I agree that some competition among exchange operators is important, but how do you justify exchanges like CHX, with approximately 1% market share?

I am not sure how to respond to your comment regarding front running without more detail. Many sources have already debunked the Michael-Lewis-style argument regarding front running. Where do you see front running? (Using the proper definition of trading ahead of a customer order based on knowledge of that order)
Agreed. Or just open source it so we won't have to trust you.
I dug into the 50× claim in https://www.mail-archive.com/kragen-tol@canonical.org/msg001.... Basically Alan was saying that the all-ECL Dorado, which was never sold commercially but might have cost US$100k per computer if it had been, was 50× slower than modern (2005) embedded RISC processors that cost US$150 per computer.

Omitting the three orders of magnitude in performance due to sheer brute cost is how you get to "only 50 times faster today". There's an additional order of magnitude of overhead in Squeak's bytecode-interpretation strategy, which was a good strategy on the Dorado but not on an AMD64; you can squeeze that out with JIT, and you get to four orders of magnitude discrepancy between Kay's offhand claim and reality. If you build a 500-node cluster and use a modern JIT compiler on it, the "efficiency that has been lost by bad CPU architectures" evaporates.

As you implicitly point out, though, this is parallel performance, not serial performance.

Kay's group has done a substantial amount of awesome research since he said that in 2007, dramatically exceeding Kay's expectations for performance on modern machines. To a great extent, Kay's Communication Design Group (funded by VPRI and SAP) is the closest thing we have today to the 1970s Xerox PARC, pioneering new enabling technologies and interaction paradigms.
sigh

And I literally just migrated all of my stuff from KeePass to LastPass like two weeks ago.

Back to the drawing board, I suppose.
Why the Government Went After Matthew Keys
In my experience NHS dentists in the UK will give you composites if the filling is in a visible area. Also, they do provide anaesthetic!
Why? The database itself is encrypted. Dropbox is just a easy way to sync it between devices.
Did just this page disabled my Ad Blocker????
A couple of centuries ago there was a movement to abolish patents. What stopped it was cheap imports threatening jobs - patents acted as a kind of import duty. Curiously, that was their origin.
If "simpler" = mipsy then yes. If "mipsy" = "closer to hardware" then definitely not.
Since they have a single goal of raking in as much money as possible, let me do a guess?

To get rich?!
3D printers are impractical for household repairs but I really think 3d pens like the 3Doodler are missing an opportunity here. I bought one with the original Kickstarter and we played with it for a while before putting it back in it's box and forgetting about it. A couple months ago I came across it and decided to try and fix the broken castor on a dehumidifier. The part was way to complex to be worth modeling in CAD for the amount of inconvenience it presented but it was ridiculously easy to weld the old part back together and reinforce it with the 3Doodler. Since then I've been using it in conjunction with an old soldering iron to fix things that I just don't trust glue to hold.
"Suppose you want to support strings and have a string comparison instruction. You might think that "it's done in the hardware", so it's blindingly fast. It isn't, because the hardware still has to access memory,"

well, there is this: http://www.micron.com/about/innovations/automata-processing
It's not an especially high barrier if your strategy doesn't require you to build physical infrastructure (most strategies don't require this). You have programmers, hardware, colocation costs, direct exchange connection costs, trading fees, etc. The programmers are by far the most expensive component.
Does anyone know of a predictive keyboard for the desktop, something geared for natural language and not just IDE's code autocomplete.
Not sure I agree, I found it very readable.
If that were true, we'd all be using desktop Tera MTAs by now.
With all the data they have and considering the degree to which they have violated our privacy, it's a shame they do so little with it.
What about cost to the environment?
The most common objection I've heard is that physicists are strongly biased towards 'conservative' laws. And for good reason: Assuming that physical quantities are conserved and then looking for apparent violations of that assumption has been an extremely fruitful theoretical and empirical enterprise.

"Many worlds" suggests the opposite: That physical quantities such as mass are forever increasing, albeit in a way we can't experimentally detect.