skysight-inc/HackerNews huggingface dataset:
This article is also a serious criticism of the Hyperloop, and makes a largely non-overlapping set of points; it has also been on HN:

http://pedestrianobservations.wordpress.com/2013/08/13/loopy...

From this article:

* Redefining SF and LA to Hayward and Sylmar allows the Musk proposal to make an extremely unfair trip time comparison, and, moreover, Musk's proposal can't easily do a "real" SF and LA because unlike HSR the Hyperloop can't repurpose infrastructure.

* At the speeds and course plotting Musk alludes to, the Hyperloop will make its passengers very motion sick.

* The costs Musk projects are unrealistic; for instance, if the Hyperloop can really construct elevated tracks at 1/10th the per-mile cost of existing viaducts, that cost improvement alone would be an equally important advance. Similar problems exist for the tunneling cost projections, and are exacerbated by the fact that a realistic course for the Hyperloop would probably require even more tunneling than projected.

There's a good MeFi thread on this too.
I would also like to add:

- To manage dependency, use SBT (http://www.scala-sbt.org/).

- For IDE, I recommend Scala IDE (http://scala-ide.org/).
If an author had written a long case defending the analogy, maybe. But it was a throwaway metaphor in a headline to pique interest, so I think you're projecting those other unrelated concerns onto the situation.

In particular, it's those complaining about how the headline wasted their time who are belittling the value of historical comparisons across very different eras and societies. Their reaction is, "What? The Incans didn't really have anything that could literally be called an Internet? You tricked me into clicking when I could have stayed even more narrowly focused on my present-day Internet-centric concerns!"

Whereas instead, the headline author was trying to shake people out of their presentism with the figurative language. "There is something surprising here about the Incans", he was saying – and absolutely not any larger objectionable/anti-intellectual theme about how "there is no progress" (which is obviously unsupportable from the details on the Quipu system).
> There’s a lot of questions one could ask here, starting with, what does it say about our society that it seems to generate an extremely limited demand for talented poet-musicians, but an apparently infinite demand for specialists in corporate law?

It doesn't say much more than that a lawyer can only serve a small number of people, but a musician can entertain millions at once. A less talented musician, tens of millions.[1]

[1] https://twitter.com/justinbieber
Even if RSA is broken tomorrow, we already have many other algorithms for asymmetric encryption that do not depend on factoring and can't be broken even with a quantum computer, like the McEliece cryptosystem. We only would need to change the standard quickly like when MD5 was broken.
I think the author is on to something with the small bets, investors being wimps, etc. And I'd add to that: The pressure with these small bets is for a startup to produce something fast. The whole culture is designed around "What can you do in a weekend, prove a market exists, and then scale manually until your dev team can catch up?" Hence why every 3rd startup out of YC seems to be "Uber for [laundry, house cleaning, menial tasks, etc.]" It's an easy model to prove and scale.

A lot of ideas take longer than a few months and a few hundred thousand dollars to prove, but investors don't want to take the risk and founders see it as easier to build a laundry service and get paying customers in a week than to come up with a really big idea and potentially waste millions getting it to the point where it would be a failure or a success.

I don't think it's Instagram we need to worry about--I think it's the myriad of startups that are getting funded to the tune of a few million in a seed or a Series A that really aren't doing much of anything past scaling an "old-school" business, and the investor/accelerator culture that forces these startups to build a business in a week or two. (I say this as someone who's running a funded startup and currently going through a top accelerator, so at least I have a first-hand perspective.)
And it only takes one unsolved show-stopper to make everything else you've done irrelevant.
The principle of charity says one shouldn't fault other people for not following the principle of charity ;-)
Why not implement privilege-shedding and enable your users to turn write privs on and off at will?
I believe your point about Buffett is spot on. He's mentioned 'circle of competence' philosophy a number of times. Although I'm not sure if he meant specific companies, but rather industry trajectories. I also think the post's treatment of Buffer was in poor taste.

Other than that, I was nodding my head all the way through this :).
Heuristics and Rules: Why We Built a New Old WAF
I get the impression that investment banking culture is biased against that in the sense that it does not hire polymath geek types. It hires suits with finance degrees, or people who have a demonstrated record building businesses. Since we just had a huge web boom, the latter category is going to be stacked full of people who get the web and only the web. Hence we're spacing out our tweets, not commercializing space.
Show HN: Thomas - Analog Movie Camera
I look for advice on how to improve my iOS app:

http://www.alfonsobozzelli.com/thomas/

NOTE:Actually it crash on iOS7 but an update is waiting for approval.

Here is 10 promo codes, usually people take them and disappears so if you use a promo code a comment is appreciated.

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You're speaking as if it's been implemented already. The Affordable Healthcare Act has a long timeline.[1]

[1] https://www.healthcare.gov/timeline-of-the-health-care-law/#...
Right now there are four Go-related submissions on the HN front page. Ryan's tool shows just two 'golang' job submissions over the whole observed time span of Apr2011-Aug2013. Is this an indicator of complete absence of Go's usage in real-world commercial projects as of today (but what's up with all the submissions then?) or just a data parsing/interpretation issue (term Go is not present in the dictionary, while the golang is there)?
Thanks for the kind words, but I think you may be attributing ideas to "How to Make Wealth" that you picked up elsewhere at about the same time. Perhaps from your peers building Facebook clones. The whole point of that essay is that startups should make something people pay them for. E.g.

What a company does, and has to do if it wants to continue
to exist, is earn money. And the way most companies make
money is by creating wealth.
It's not that hard to imagine what will be like if there's no financial institution and corporate lawyers. The first is that the dollar you own will not be real money -- we have to go back to gold standard (even this requires certain level of financial institution to support). Also, say good by to bond and stock, or mortgage or student loan. or cheap airline tickets.
I always find it like magic that you can just give somebody some money and then receive some bits of information that claims you own X% of certain company, without the need to actually know anything about said company(although it's not recommended to do so). Just think about if you have to design a system that can align other people's interest so they work for you WITHOUT you actively managing anything. How can it be possible?
Then why not stop the source?

Seems like petty bullshit to me; the work of a bureaucrat.
These are analyses that were available a decade ago, unfortunately. We should already be in the middle of a transition away from RSA and to ECC constructions.
This resonates particularly wrt what has happened in the UK to the health, electricity and rail sectors, where privatisation, or movement thereto, has created a vast class of white collar jobs whose only function is to administer the labyrinth of utterly pointless complexity that imposing a market model onto these sectors has introduced.
> Regardless, having to head over to the Google campus and buy a dev coffee

I thought coffee was free over there ;)
However true that is, it doesn't really respond to anyone's point (Schneier's or Ritter/Samuel's); nobody involved in this was saying something like "crypto is dead".
Sometimes later, an API design is found to conflict with design changes that need to be done, that wasn't known at API design time. Sometimes you have to deprecate.

I work on GWT. GWT has, since 2008 at least, relied on certain low level details of the NPAPI in browsers for implementing its Development Mode. Both Chrome and Firefox break this API consistently, in fact, Firefox breaks it on every single release. Eventually NPAPI will go away, because it was designed in a bygone era of Flash plugins.

Unfortunately, it's not being replaced with anything that solves our use case, nor does PPAPI solve it.

I really feel for the author of v8-juice, but it's more important that the browser vendors drive performance and security forward, and given how tightly integrated JS is with the browser, you would have to expect that radical design changes in internals are eventually going to break low level APIs, even if they are public.
> Stopped reading when...

So you're explicitly stating that you're basing this comment on only a partial understanding of the article?

You wish to state that you're ignorant of a number of the points made in it. Okay. Thanks for the warning, I'll disregard any point you're trying to make.
Microsoft clearly did not make IE a business priority to the extent that Google has with Chrome, and obviously Mozilla with their flagship.
Windows Phone is not even there :(
There's also CityHash, which has some nice claimed performance numbers depending on your application.

https://code.google.com/p/cityhash/
http://www.stanford.edu/class/ee380/Abstracts/121017-slides....
You just described in a nutshell why it's usually governments that make big infrastructure-scale and basic research investments.

Governments either don't care about ROI at all and are motivated by other factors (war, national security, national development, political points, etc.) or can afford to look at ROI over exceedingly long time scales.

However, governments are piss-poor investors. So what we get is private capital -- which invests in a lot of tiny incremental things -- and a lumbering beast called "public capital" that invests in big things in a clumsy, ineffective way.
My college (im sure like many others) had a bunch of rich international students from India. I found them to be hard working, ambitious, and generally down to earth. Perhaps it was because they were well traveled and had a will to surpass their family's wealth with their own stamp on the world. Many had also done a lot more community service than American peers in much more squalid conditions...they also seemed to be more attune to their (screwed up) political system.

In short, just like the other comments, I don't think this rich kid ennui is just in India...or Delhi
No, I think they just screwed up. Don't assume these intelligence services people are intelligent and have thought through all the angles, especially in the UK.

http://www.bbc.co.uk/blogs/adamcurtis/posts/BUGGER

The people who really benefitted from this action are Greenwald, The Guardian and those of us who want our governments to stop abusing their power. The UK government just look like assholes again. This will spawn further news stories in places like The Guardian as the legal fallout from this continues thereby keeping the surveillance state in the news cycle longer.
Five secrets EdTech bosses don't want their direct reports to know
The Impossible Mayor of the Possible
A couple interesting places:

DJ Tech Tools forums (a lot of stuff about controllerism and related hacking topics) - http://forums.djtechtools.com/

Create Digital Music - http://www.createdigitalmusic.com/
> the thermal expansion issue in this blog post has been brought up

The author missed the "not rigidly fixed" part when he was analyzing thermal expansion issue. My comment:

https://news.ycombinator.com/item?id=6238022
What I love about Scala is that all (most, if not all) libraries built in Java can also be used. This includes those awesome apache libraries.

For Scala written libraries, here's a link to Github page: https://github.com/trending?l=scala
Zillow buys NYC real estate site StreetEasy for $50M
You could just ask for them.
Hacking sales for left-brained founders
> There's no money here. What is the "other valuable thing"? The safety of journalists' innocent loved ones? That's monstrous, and that isn't a proper interpretation of law

No, the 'other valuable thing' in this case is immunity from search or seizure.
>Choosing a random generator matters, because we want a different permutation every time, not simply a different starting point.

Ah thanks, now it makes more sense, I knew I was missing something. What about choosing different prime polys for a galois lfsr? I believe you will get the same result.
Maybe I don't know enough about physics or thermodynamics, but this portion puzzled me:

> Here, I’m showing the pipe sitting on the pillars at the low temperature. The lines and arrows above the pipe are where it expands to at the high temperature.

> Now add 100′ of pipe and another piller to either end. How much movement do the dampers in these new end pillars have to accomodate? Just ¾″? No. They have to accommodate 1½″ because their lengths change ¾″ and their “starting points,” so to speak, also change ¾″.

I won't pretend to understand what Musk was proposing, but for the sake of argument, can't you simply allow the ends of each portion of pipe to expand into each other, thus creating a net change of 0? All you'd need is a tongue-in-groove connection with a small gap of .75". For sealing the connection, just line the tongue with rubber, and for aerodynamics, just line the resultant gap with a thin strip of material.
Yeah, I always thought the fact that the route essentially ignored the mass transit equivalent of the last-mile problem (rendering it useless as mass transit) and that virtually all of the cost savings vs. HSR came from that (to put it generously) oversight was the most important criticism.

But it doesn't surprise me to see that the civil engineering end may have equally basic problems, as well.
> I get the impression that investment banking culture is biased against that in the sense that it does not hire polymath geek types.

But they do -- they's called "quants." They aren't as popular as they were 20 years ago, but they're still hired. And they're notoriously incapable of assessing risk versus reward.

http://en.wikipedia.org/wiki/Quantitative_analyst

> It hires suits with finance degrees, or people who have a demonstrated record building businesses.

Only in an ideal world. Not this one.
>Just keep in mind, that frustration is built by your own misunderstanding of your place in the open source ecosystem

And what place is that? A place from which asking for features is inappropriate?

You know why I hate the "feel free to submit a merge request" kind of response? It's because most of the time it doesn't mean what it says. What it usually really means is: "Either write the feature yourself or shut up!". And knowing that most people do not have the time or the skills to actually add the feature, it boils down to "Shut up!"

And that is not an adequate (first) response, because it is disrespectful and hurts the open source movement.
There seems to exist a lot of false positives; for instance, I included Lisp on the chart, and it indicated 7 job posts in May '13. I went to the whoishiring's posts for that month (both the "Who is hiring" [1] and "freelancer?" [2]) and I counted 6, but only one of them (the first instance, in a "top level" comment) is actually a job posting (all the others occur in sub-discussions). And as it turns out, it seems that it's only a sort of "eye-candy" (although I admit that filtering these may be harder).

My point is, you might be able to avoid false positives if you only consider "top-level" comments.

[1]: https://news.ycombinator.com/item?id=5637663

[2]: https://news.ycombinator.com/item?id=5637667
More YC companies public pre-Demo Day - thoughts?
By my data (http://www.seed-db.com), with 24 hours to go before Demo Day 38 of the 53 YC companies in S13 have launched and/or are public (72%).

This is up from YC W13 where 28 of the 47 YC startups were launched/public the day before Demo Day.

Any other observations/thoughts about the evolution between batches?
Depressing.

I'll tell you why: My Boston-based, recently acquired startup can't find people at all, so seeing hiring increase in the technologies we use (Javascript, Python, Angular) means that trendier startups who pull stunts like sponsoring free beer at the Boston Python meetup (Thanks Bullhorn!) are getting attention where we can't. And that sucks for me, because I need someone to replace me now that we've been acquired, so I can move on to my next project.

We're under corporate pressure to convert to C# and .NET as a result of the Python hiring crunch. I fear that this particular cure might be worse for us than the inability to find Python people.
But an Instagram has a high risk of failure whereas a transportation infrastructure is a very low-risk investment. The Hyperloop would be better compared with a huge Internet infrastructure like Google Search than with Instagram.
Cool aggregation, and I like the simplicity of the site. If you're looking for things to add (possible site bloat, so take it with a grain of salt) -- Maybe add some info on their data-retention/ownership policies?
WP Super Cache is definitely your friend if you must self-host.
[disclaimer: I worked on V8]

I must say that public facing API is well documented right in the header files. Each class and majority of important functions have long comments[1]. So claiming that V8 has an anti-documenation culture is incorrect. Next I would like to note that V8 is surely open to patches that improve documentation of public V8 interfaces. I don't remember a lot of those patches flying in though.

Finally, documenting internals is completely different from documenting API. I don't think it is feasible to maintain such documentation. Internals exist only to rely on them in an extreme cases and in such extreme cases reaching to V8 developers directly or reading the source code is the only way to get correct and what is more important up to date information given how things are constantly in flux.

[1] https://code.google.com/p/v8/source/browse/trunk/include/v8....
Tracking ECMAScript 6 support
Right. But no investment has a guarantee of working. There aren't 1,000 Instagrams in tech. There are roughly 10-15 moonshot investments made a year out of thousands. So you can't find 1,000 instagrams.

Investment doesn't scale like that. You can "imagine" return would be better but it isn't is it? Look at VC returns. If you make 1,000 investments of $1million how many do you think make it to being a billion dollars vs just losing your money? How many of those investments need ZERO more capital along the way - if they need more capital you either get diluted out or you're putting a ton more cash in.

Instagram is a ridiculous outlier to build an investment strategy on. How many other Instagrams have you heard of this year? Yeah... not 1,000.

People investing in Hyperloop type investments don't put all their money on one investment either. If you're an investment manager at a pension fund having to find places to park $500BILLION you cannot be managing million dollar investments, they're meaningless. Even an Instagram doesn't move the needle. You have to place lots of billion dollar bets.
He was a respected historian before his holocaust claims.
This article makes it seem like Greenwald would be releasing the 'secrets' in a retaliatory manner, rather than (what I believe to be) his original intentions to release them anyway, to show that he is undeterred.

Does this seem disingenuous to anyone else? Why play up the (potentially non-existent) retaliatory angle?
My initial comment comes across a little too strongly against the article because it singles out one thing I found to be highly misleading. I think, ultimately, SV investors don't encourage much innovation. I wish there was more capital available to fund innovators such as Musk. However, I think the article's usage of hyperloop as an example of important ideas that don't get funding is premature, to say the least. There needs to be a lot more debate about the pros, cons, and legislative ramifications of hyperloop before championing it as something people should invest in.
Haha, funny, but that requires an addendum: 'provided there exists an explanation for their having abandoned it'.
Releasing information as revenge for illegal detention is the wrong decision, why make it personal? Confront the illegal detention if it was illegal but don't make it reactionary and petty like this.
Some people may be concerned that these secrets are only going to be published because they attacked him personally. I think this is misguided.

I am more concerned by the idea that they might have otherwise gone unpublished. Hopefully he is just changing the planned release date.
Hey Sales Guy - Stop Pissing Off The Engineers
This seems to be what's wrong with the consumer culture when it comes to open source software. It is a sense of entitlement. If you want a feature, request it. The correct reply from the developer should be "thanks for the feedback, it's been noted, in the mean time you could add it yourself and send me a pull request". Done and done. It's not up to the developer to implement everyone's request. That has nothing to do with "end user software" if so far you are the only one requesting it. If there's no community demand for a feature, feel free to do it yourself. Don't blame the developer for not implementing your feature if 1) there's no community demand outside of yourself and 2) you have no plans to make it happen yourself.
Unsexy sells itself [video]
...and the only way you learn how to write more elegant code is to start writing code...
Not really. Funding comes in stages. No VC with a billion dollars in their pocket is making one bet. But for folks with a lot of money to put in this is not unusual for lifecycle.

Look at the actual amounts raised through multiple rounds by - not just the initial seed investment the time they IPOd by any big tech name of the last decade or two: Google, Cisco, Facebook... hell look how much Groupon burned through.

The idea that you cannot raise a billion dollars if you can deliver a return on it greater than capital markets would otherwise provide is nonsense.
Greenwald's response...

"Reuters is the absolute worst at tearing comments out of context for sensationalizing headlines. The paraphrase:

Q: Will the UK's detention of your partner deter your future reporting?

A: Absolutely not. If anything, it will do the opposite. It will embolden me: I have many more documents to report on, including ones about the UK, where I'll now focus more. I will be more aggressive, not less, in reporting.

Q: What effect do you think they'll be of the UK's detention of your partner?

A: When they do things like this, they show the world their real character. It'll backfire. I think they'll come to regret it.

REUTERS: HE VOWS TO PUBLISH DOCUMENTS ABOUT UK AFTER DETENTION, SAYS THEY WILL BE SORRY!!!"

http://www.twitlonger.com/show/n_1rm09tf