skysight-inc/HackerNews huggingface dataset:
I think the best point here is that American cities are not walkable. We tend to prefer long main roads with lots of business off of them to central areas where all important businesses are in walking distance. Main squares are more conducive to public transit than main avenues, because once you get there, you can walk. This is, in my mind, one of the hardest problems to solve for American public transit.

The expense and environment I think would both almost solve themselves if public transit became more common. If it were the main way to travel, then the distribution of people on buses would match the overall distribution of people.
It's not like there are alternatives. The Times has let blatant editorializing sneak onto the front page and throughout every section for as long as I've been reading it, and its the paper of record. Read The Economist.
I have an idea: how about we give them a big chunk of money? :)

Seriously, this point doesn't work. No state is going to turn down a transit project, certainly not because of the operating costs (most of which are funded in these kinds of bills -- it's not a one-time check). And in any case, in most urban environments transit is required to pay its own operating costs. Where do you think that bus fare goes anyway?
Much of mass transit (airplanes, tour buses, Greyhound, ocean cruise lines, etc.) are profitable.

There are things that people are not willing to pay for, and government types have labelled these things "market failures", which, BTW, is a misuse of the term.

Government has then stepped in and run programs that people are not willing to pay for.

So the question really boils down to "how would you make something that noone has ever figured out how to make profitable...profitable?"

It's a bit like recycling: there have been metal recyclers for centuries. People do not recycle glass and paper because it is a value DESTROYING activity.... and thus government got involved, and requires people to separate their trash streams...before recombining about 75% of the "recycled" materials and putting them in landfills.

The only good answer to this question is "mu".
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Não é novidade para ninguém que o wordpress hoje é o gerenciador de conteúdo mais usado dentre os blogueiros. Além de possuir uma incrível mobilidade e ser de fácil utilização o wordpress conta com uma gama de Temas (Templates) de alta qualidade. Então resolvi separar os 25 melhores temas grátis disponíveis na internet.
Your concerns are certainly legitimate, and I'm sure there are some situations where they apply. However, in many physical sciences (I would venture to say the vast majority), simulations are not chaotic. They are based on stochastic models that have converging behavior. So, in general, it really is fair for most people to rely on the stability of the simulations.

As for your other points, the issue of simulation accuracy is already taken very seriously in the areas where I've seen it used.

Let me give an example from my field (high energy physics). The pre-eminent event generator of choice is called PYTHIA. It incorporates as much known physics as possible, and is continually updated. There are groups that regularly convene to compare the distributions it produces to those seen in real experiments and adjust the parameters to improve the results. The code is open source, so you can readily make improvements and submit them to the maintainers for inclusion in official releases.

Now the primary uses of these simulations are to either tune your analysis to separate signal from background or calculate corrections for different kinds of detector acceptance issues. No reviewer would ever accept a publication that used simulation if the paper did not include clear evidence that the simulation was valid, usually in the form of a data/simulation comparison.

Regarding reproducabilility, I think you're a little off the mark. The idea is not that you should simply repeat my analysis to get the same answer (this important verification step should be, and usually is, present in all scientific groups). Ideally, you should collect your own data, make your own simulations, and do your own analysis. Then we should see if we got the same answer.

Edit: grammar
Caleb Larsen's sculpture perpetually sells itself on eBay
you are an idiot, a bird brain. please kill yourself.
This judgment comes several years after the fact.
Speaking of reproducibility, my friend getting a PHD in finance told me he was writing a paper using the data from some brokerage. I asked if he would publish the data and he told me it's confidential.

I talked myself blue in the face trying to explain how science doesn't work if you don't give people enough information to reproduce your research! I couldn't get him to understand though. Arggh so frustrating.
Ever had a bank account in Switzerland? Swiss Post uses two-factor authentication with challenge-response for online logins.

First you enter a password, and you get a challenge code back. You insert your card into a device they send you, then enter the pin and the code. The device displays a response code that you enter into the website.
It's not a big deal.

I just find the reddit markup for this is better, makes for better scanability of threads and takes less keypresses. Also allows for easy use of a user stylesheet on quotes or for HN to change the quote style.

Generally if there's a better way I prefer to use it. Clearly others are happy with the current ad-hoc method.
But it actually has some truth in programming.

There is little possibility of thinking with programming techniques that require closures until you are thinking in a programming language that has closures. Learning the language does not cause the thoughts, but you cannot think through the thoughts effectively until you've developed a language that can express them.

Of course once you have learned to think those thoughts then you can figure out how to do those things in languages that don't have closures.

This raises, obviously, the question of how the idea of closures was ever first established. And the answer to that is kind of interesting. The history as I understand it is that they were invented by accident as a side effect of other decisions in ALGOL and Pascal. But weren't extensively used there. Then Sussman noticed that they worked extremely well when combined with the idea of functions as data that was already popular in Lisp, and co-wrote Scheme, the first Lisp with closures. The adoption of closures in other variants of Lisp was usually quick (eLisp stands out as a glaring exception). From there they got carried to other languages. The adoption of closures in scripting languages, particularly JavaScript, brought them to a much wider audience, and now they are becoming pretty mainstream.

So nobody really thought up the first programming techniques involving closures from scratch. Instead those techniques were invented in a bad form using other forms of scope, then closures were noticed as a solution for the shortcomings of those scoping problems and things cascaded from there.
I believe that tokyo has 3 competing subway companies, so I guess there is room for competition.
As a denizen of northern Virginia I'll note that I'm a huge fan of the VRE. Driving within the beltway is miserable and I prefer public transit whenever I can.

I have to reach the Madison building every few weeks and I can generally make it by driving down the street to the Manassas Park station and riding to L'Enfant Plaza, where I can jump to the metro. The whole trip takes hour: I can leave at 7:45 and be sure of getting there before 9:00. In contrast, my boss leaves the house at 6:30 and heads to the Vienna metro (the westmost point of the DC metro) and arrives around the same time I do. He has to leave early because there is no parking at Vienna after 7:30. Both of us live near enough to each other that our commutes comparable.

The worst traffic in the US is caused by commuters and most of that is due to the vast amounts of sprawl. It's not always feasible to live within reasonable distance of your place of work and that leads to people needing drive farther and longer, leading to more traffic over-all. Things like commuter trains help a lot because the infrastructure is mostly in place and they can go faster and cover more ground than metros but it won't help until people start living a little closer together.
The same guys who make SmartSVN, have SmartGit now...
My comment (above) has gotten three down votes in 5 minutes.

Has anyone READ the article?

I think that my summary is dead-on accurate.

If you disagree, please post WHY you disagree.
Have you heard the term "externality"?
Links, for the curious:

http://www.planet-lab.org

http://www.hpl.hp.com/open_innovation/cloud_collaboration/cl...

http://cloud.cs.illinois.edu/

http://www.cs.duke.edu/courses/spring08/cps214/project.html (Testbeds and Emulation section)
1 year maternity leave is pretty much the standard globally for established countries, just like state run healthcare.

It's the US that is different here.
> Read The Economist.

The Economist produces good content, but it's all editorializing, all the time. Articles aren't even attributed to their authors - they just spring fully formed from The Economist's notional forehead.
[pdf] Engineer’s Guide to Drinks
Sorry but I need to know this:
What does "Pony" mean in a nerdy-geek humor context?
well, BAM! here it is
Mmmenu - flexible Rails menu plugin
I'm not saying there isn't room, I'm just saying that with limited space and a captive target audience, having three competing subway lines is incredibly inefficient, especially when you consider that there will be 1-2 lines that all three will service, while other areas won't have any service, given traffic patterns.

I'm not sure how this is in the interests of any city really.
Call centers.
Write your own.

http://www.devkitpro.org/category/devkitppc/
Yes.

Mass transit is subsidized, in most cases, FAR beyond whatever the externalities cost.

In Boston, 75% of the cost of each fair is payed for by other taxpayers. I dated a woman getting her PhD at MIT in transportation studies for a few years and asked her "are there any studies showing that the negative externalities that are dealt with here cost anything like the MBTA subsidy?"

The answer is no - even if you count externalities, most public transit is a huge exercise in value destruction.
I'm red-green colorblind, and the best color-based systems have a few things in common:

1) High contrast colors

2) Unique icons assigned per color

3) They use traditional color intensity conventions

Usually, I can differentiate red and green by using intensity conventions. Red should be dark, and green should be bright. Visual cues help too: emergency colors should be red and white no matter what the object is. Interestingly, I can't tell blue, purple, and pink apart to save my own life.

To me, the system presented in the article is more-or-less garbage, since it doesn't provide an orientation and doesn't put any constraints on the contrast difference between the presented colors. I might get it right, but I'd waste a lot of time compared to a well-defined contrast system

I would most easily identify a system using black, white, light gray, dark red, bright green, and blue. Anything past that, and I'd start to have some problems. Pink might look like blue, yellow might look like bright green, brown might look like red, etc.

Sometimes I get false positives using my system: 3 years ago I found out that the Canadian flag is red and white, and not green and white. My friends and I were celebrating Canada Day as an excuse to have a party (nothing personal, Canada!), and I was explaining my color differentiation system, and very strongly asserted that the Canadian flag is green and white because it had a leaf. They spent a few moments exchanging "Is he serious? Because he looks serious" glances before spending a good 15 minutes openly mocking me.
Fun with WiFi naming . . .
TWIS#10 Freemium Special with Lincoln Murphy- This Week in SaaS
Texas also happens to have the biggest city in the US without any form of public transit (Arlington).
Interesting. Here in Portland (Oregon), we actually have the reverse policy: property tax exemptions for housing units within some arbitrary distance of a light-rail line. [Link: http://www.pdc.us/housing_services/programs/financial/transi... ]

Of course, that policy is probably aimed at encouraging higher density, not at improving our transit agency's bottom line... but it does also create a natural customer base for the light rail system.
Which is true.

Don't know about Chicago's, but the ones I've seen have restrictions on time of usage, usually after rush-hour, which makes those types of fare systems unusable to the majority of riders.

I can't remember if NYC also raises rates during rush hour, but D.C. does as well.

I think I stopped taking the D.C. system when a single day's transit and parking started topping $13/day.
Nice.

Two calm comments of mine, both down voted to 0 or lower.

...and yet someone making no points and calling names (below) still has a positive score.

You down voters ought to be ashamed of yourselves - this is a marketplace of IDEAS, and yet you're just lashing out. Very mature. Very much in the spirit of HN.
I don't have a link handy, but this is very close to the initial concept for cubicles. Then middle managers intervened.
Tgethr now supports Pivotal Tracker
SF Mayor on why open source is the new software policy in San Francisco
I think the downvotes have more to do with people not wanting to see baldly political rants. The article was about the Wall Street Journal. You replied with an off topic ad-hominem about the authors motivations and intelligence. Bad form.
By that same reasoning, China has a guarantee that it won't punish you for badmouthing their government...as long as it's done in the privacy of your own home.
America's free speech is a guarantee of nonpunishment _regardless_of_forum_.
The idea that the constitution shouldn't be too highly regarded even seems like a legitimate point to make in trials:

The charges stemmed from the CCP’s interpretation of Guo’s actions as subversive to its rule. His defense was not to dispute the evidence, but to argue that the published materials were not subversive, and that the constitution covers freedom of speech anyway. The prosecution asserted that the interests of the Party-State take priority.

http://www.theepochtimes.com/n2/content/view/27316/
I didn't down vote you but I think people are disagreeing with your interpretation of the article. He made it clear in his article that he dislikes both sides. And from his previous articles, I believe him. He doesn't limit his attacks to just one party.
There are of course variations of this trick. If you can't find a monkey, either a quail or a toucan will do just fine. I have some friends who were in a military survival training mission in the Amazon.. For many days all they were able to find was swamp cabbage (palmito). Then they found a toucan... The monkey trick didn't work because the trees are very very tall.
Hey business owner. I see that you're using a faulty window lock on your back window and I'm concerned about my data. I took the liberty of posting on a town bulletin board details of this faulty lock along with other local businesses that have the same lock in hopes that the townspeople will pressure you into improving your window lock system.
>>Not everyone has the same Google Page Rank on sites they control.
>People who have already established a reputation online will have greater voting power. Why is that a bad thing?

Because your reputation in itself doesn't make any particular statement interesting - people with no reputation may have exceptionally good things to say and it's a lot harder to float these up the site if we're relying on Google's hidden algo as opposed to just clicking an upvote button.
i had this problem many years ago (15?). at the time i was working as a postdoc, calculating the evolution of the ionizing background with redhshift from the inverse effect (lyman alpha clouds near quasars get fried by the quasar; the extent of this gives an indirect way to measure the ionizing background at that redshift).

i had a bunch of perl scripts (ah, those were the days) that mangled various files before feeding them into fortran least-squares stats code that took a day or so to run.

by the end, it was pretty much chaos. i was a self-taught programmer, these were probably the second or third "significant" programs i had ever written. nothing was documented, everything took so long that i couldn't check much... i had bugs, of course.

in the end i published. maybe 6 months later i got an email from someone in the states. they were trying to reproduce my results. in the end, they did (as far as i know).

so the system worked.

incidentally (perhaps the only useful point here) they must have used different data. that's something worth explaining in more detail - "my" data came from years of painstaking work by a bunch of people working for my thesis supervisor. yet 6 months later the results could be duplicated from a week or so of data from a much more powerful telescope (the keck). so data in research often aren't as critical as you might think. things progress at such a rate that even if you don't share data, it's trivial to reproduce just a short time later... (and i am pretty sure that this is true in gene sequencing, for example)
Your comments are interesting, it shows just how much my background has colored my thinking and caused me to take for granted situations that other people just don't think of.

> Space complexity is the issue for only a subset of problems ...

Hmm. I deal on a daily basis with datasets that are several GB in size, and don't regard them as especially large. If I wanted to find a loop in a linked list, I'd worry about allocating memory to a subsidiary data structure that was subsequently going to be thrown away. Given that I often don't know the size of the data set, I can't easily create a hash structure, so having a wide selection of algorithms like this immediately to hand gives me a good chance of finding something that will work.

My first application of this technique was in an implementation of a variation on the Pollard Rho method of factoring. In that case it's impossible to create a parallel data structure - the teleporting turtle-type of technique is essential.

> my inclination is to go for either the hash table
> or search tree solution unless I really, really
> have to implement some special algorithm.

It seems to me that in most of the cases you're considering you wouldn't have a linked list to start with. I get the feeling that the situations where one would seriously consider using a linked list as opposed to a hash table or tree search are those situations where you do have to worry about these issues.

As usual the answer is really to question why there's a linked list to start with.

> How would you ever not know the start state
> of the mark on each node? It's a field you
> invented, ...

Again, not always the case. I regularly deal with libraries and I'm given an API, but I don't get to define the fields. This happened to me recently where I had a complex data structure and I wanted a flag on each node, but couldn't have it. The solution we thought of first built a subsidiary data structure to keep the additional information, but that destroyed the performance. In the end we used a trick like the teleporting turtle, that reminded me of Floyd's algorithm, and so I wrote it up.
Ain't broke, don't fix it..etc
That's a crap user interface.

You think that to vote on HN I should spam HN to my readers? Note: I have to post a link to HN, not the interesting link I want to vote up.
You assume your conclusion: that large-scale VCs catering to pension funds make money. Most of them didn't make money. They were just really good at selling to pension funds and giving themselves fees.
Technically, the article is about the politics of the WSJ, and the poster responded with a comment on the author's politics.

You can't talk about politics without talking about politics.
can you point out in the article, with quotes, where your ideas are validated? i read the article first, read your comment, and then re-read the article and nowhere do i see any support for your summary.

the only thing i can imagine is that this article doesn't line up with your own personal belief system, and you're violently rejecting it.
I'm interested in collective assessment of the story quality rather than the selection bias created by a well-known poster. For example, Seth Godin is quite famous but what he does isn't my cup of tea; if he retweeted HN submissions his favorites might consistently float to the top, but I would probably not like them, and might start avoiding the highest-ranked stories out of fear that they appealed more to his taste than to mine.
Steve Ballmer signs a MacBook Pro.. on Video
Re-read your comment, and I don't think you can really classify it as 'calm'. It clearly shows your political motivation, the same as you accuse the author.
Umm... this doesn't matter. This protocol is only for detecting and copying files that are on computers in your immediate LAN.
Is there a good list of these features somewhere?
It surprised me that a few were (jokingly?) anti-Common Lisp. Any lispers care to explain?

examples:

"Greenspun's Tenth Rule of Programming: any sufficiently complicated C or Fortran program contains an ad hoc informally-specified bug-ridden slow implementation of half of Common Lisp." - Philip Greenspun

"Including Common Lisp." - Robert Morris

"Common Lisp is politics, not art." - Scott Fahlman
No, GoDaddy backorders is a drop catching service. For it to work, the domain has to hit the wild, so if someone bought the domain in TDNAM you wouldn't get it.

Basically:

If the domain you want was regged with GoDaddy, Network Solutions, or eNom, buy it out of their aftermarket (much cheaper, better chance).

Otherwise hire drop catchers. You can hire several, because you only pay the winner. However, be careful what you're getting yourself into here - for that the original article is still very relevant.
But, but.. the only number that really counts is your position on the leaders page, right? :-)
I can think of several times here in SF where I took a taxi instead of a bus because I didn't have cash on me. Now with the new RFID translink cards, it's much less hassle and I ride the bus a lot more.
Google Apps highlights – 1/22/2010
This brings back memories of a similar discussion in a finance class a few years ago.

Someone suggested increasing the cost of using private automobiles (via higher tolls on bridges and tunnels, etc.), and making the subways and buses free (both to encourage ridership and to reduce the overhead required for collecting fares).

The professor responded that the first idea was good, since it would motivate changes in behavior, but it would have to be a lot, i.e., triple or more the current tolls, to really have an effect.

He thought the second idea made less sense b/c mass transit is an inelastic service to the population that currently uses it (i.e., people who ride the subway have no choice but to keep using it), and also since the cost of collecting fares is small relative to the overall income.
Previous discussion here: http://news.ycombinator.com/item?id=990136