skysight-inc/HackerNews huggingface dataset:
Crap piece. Obviously browsers, incl. Chrome, will soon use HW acceleration whenever possible, meeting or exceeding Flash's implementation. As others note, this has nothing to fo with HTML5 or the merits of <video>, etc.
After some reading, it looks like it's actually possible to use git-checkout-index after an uncommitted merge to get the index contents out where I can test them. I'm still mystified that the preferred workflow is to blindly commit stuff that may not even run, which leaves you with the problem of somehow knowing which of the commits are actually useful points to roll back to or start new work from.
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How is this good code?

x |= MAC_computed[i] − MAC_computed[i];

Shouldn't one side or the other (of the minus operation) be MAC_received[i]?
Quantum computing is overrated. So far all it has told us is that 15 = 3 * 5 with high probability.

While Shor's algorithm demonstrates that integer factorization is in BQP, there are very good reasons to believe that many other problems are not; a large enough quantum computer may break RSA, but it won't break everything.
Yes, that's a typo. Sorry.

(Lesson learned: LaTex is not the best language to write code in.)
So what are you proposing then??
Now that would be an interesting distributed effort to see: try to build a timeline of all of Zuck's questionable behaviour on a single site, we could call it something like zucksucks.com ;-)
Nay, basketball is not much different. Get the best players + good coaches and you'll win the most games. End of story.

"a good deal of detail, and outright truth, is sacrificed to back-up the original thesis and offer a more compelling reader narrative."
I think your comment is spot on, case in point:

The Grizzlies went from 23-59 in Battier’s rookie year to 50-32 in his third year, when they made the N.B.A. playoffs, as they did in each of his final three seasons with the team. Before the 2006-7 season, Battier was traded to the Houston Rockets, who had just finished 34-48. In his first season with the Rockets, they finished 52-30, and then, last year, went 55-27 — including one stretch of 22 wins in a row.

What Michael Lewis failed to mention is that in Memphis, Battier played with Gasol, the same Gasol who made the Lakers an instant contender and eventual champion. And in Houston he played with 2 perennial all-stars in Tracy McGrady and Yao Ming. This year Houston did not have either Yao or Tracy and they sucked, Battier is still there...
http://www.aduni.org/ - sadly only lasted one year.
DO: Do what Bruce Eckel does, and have all code in a publication run through automated tests before releasing it. ;-). And... you're welcome?
WiFi Sync gets rejected from AppStore, but now available on Cydia.
(mahmud, dejv)

> scale their spreadsheets

The other day, I bumped into this Excelsior tool: "Safe spreadsheets fast: generating and reverse-engineering" - through here, please http://news.ycombinator.com/item?id=1281593, or direct to http://www.j-paine.org/index.html

Anyone has used it, or something similar, and feel like commenting ?
Many thanks, WJ. As you may have seen already, I went ahead and posted at
http://reprog.wordpress.com/2010/05/13/you-could-have-invent...
Much appreciated!
Okay, I can see that. Most of Bernstein's crypto work falls in that category, probably.

Forgive my ignorance, but why is having a short block size especially bad? You don't want to subject 64 bits to a birthday attack, but something like CTR mode should work, right? (I still wouldn't recommend Blowfish - AES is used more widely and works perfectly well - I'd just like to understand your reasoning).
Also think about what you'd do with the hay once you manage to somehow collect it. You'd have all this hazardous waste that you'd have to end up burying or burning.

Sounds like the existing boats + tools they have work fine for cleaning it up, it's just a matter of scale. The real problem is that the leak is huge, and there's just craploads of oil to clean up.
Based on other experiences that's "if", not "after".

But no, it's not easy, unless things like OAuth and OpenId implementations are easy to you, which puts you in a very select group.

What about all the other distributed social media experiments, which have been around longer, done more, and are working with established protocols? I still think that this is the real way forward.
They were actually saying that learning Fortran is enough to understand all the important concepts. It was not about Turing completeness. They actually thought that languages are all more or less the same. Maybe they knew about exceptions, like Prolog, but didn't mention them because of their perceived irrelevance. "They" are quite rare among professors, but they do exist.

Sometimes, it is the course, not the professor, which implies that Fortran is enough. Such a course made me study algorithms. The syntax was some sort of Pascal. The semantic was first order and imperative. And because no compiler existed for such a language, they acted as if the thing was "language independent".
DO: Use a 2048-bit RSA key, a public exponent of 65537,
SHA256, and MGF1-SHA256.

How can I set the public exponent when generating a key? man gpg wasn't helpful.

And why this particular number? I can see that it's 2^16+1, but I don't understand the advantage of this number compared to others. (Although I've been taught that people prefer small values for e now.)
Consultants Don’t Pivot, Founders Do.
With a 128-bit block, you can send 2^64 messages of up to 2^64 blocks each; that's not going to cause problems. With a 64-bit block, you're limited to 2^32 messages of up to 2^32 blocks before you overflow.
Wow, I write this and then read this post: http://daringfireball.net/linked/2010/05/13/entourage-edge

Are you fucking kidding me? This would be like me criticizing iPhone OS by reviewing a third party manufacturer using Meizu's iPhone OS clone on a shitty tablet and passing it off as judgement on Android itself.

Gruber, when you get serious, hold your damn horses and write a real review on Google/VZW's official tablet. This other stupid stuff really doesn't paint you in a pretty light, especially paired with... your less absurd but equally Apple-grubbing content.

edit: COME ON. This has to be a joke. It's not even a damn tablet. It's a dual screened, hinged device with a e-ink screen and a regular LED screen.
Sad! Why was this stopped after one year?
That was explained in the audio part of the talk. :-)

Short answer: A long list of attacks in the past have been much harder with large public exponents; using 2^16+1 instead of 3 is a bit slower but is likely to make you safer if someone else gets smart in the future.
I think you're only partially correct here. What we can see through the success of for-profit schools is that people are interested for-profit education. This does not mean that they are interested in education in general--the draw may lie in the promise of higher incomes after graduation.

Now, the question is, what do for-profit institutions do better than non-profit institutions? The first is enrollment numbers. For-profit schools enroll many times the number of students that non-profit schools do. The problem with this is assuming that all students are created equal. That is, is educating 500 good students worse than educating 10,000 bad students? Even more concerning, is educating 500 students well worse than educating 10,000 students poorly? If you watch the special you will learn that it is projected that as many as 50% of for-profit students who take student loans will default on those loans. This suggests to me that, regardless of the cause, the for-profit institutions are not educating the students adequately. In this case it seems that this is not a strength of capitalism--the for-profit institutions are not making money by providing a useful service, they are essentially making money by playing snake-oil salesmen.

To my eyes, the only other thing that for-profit institutions are better at than non-profit institutions is enrolling low income students. I think this leads back to your claim that capitalism identifies vacuums in the market. I think the vacuum here is one created by marketing--free money. The for-profit institutions work by promising education, which they say lead to higher income jobs. However, we can see from the statistics that there's no direct proof of that. In fact, the crippling student loans may place students in an even worse financial situation. While educating low income students is certainly an area that we could improve upon, I don't see for-profit institutions as having any revolutionary way of solving this problem.

In essence, I think we see the situation two different ways. I understand you as seeing it as elucidating the weaknesses in traditional higher education (which I can't completely disagree with), but I also see it as direct exploitation of the undereducated due to weak governmental regulation. For-profit institutions signal a demand for what was promised but I don't see a solution anywhere in sight, including inside the for-profit universities. Right now, it's simply exploitation.
I enjoyed the article last time, and enjoyed re-reading it again. Here's a youtube video, if like me, you hadn't seen Battier play:

http://www.youtube.com/watch?v=x4aDM5d27_w
Twitter has taken in what, $160m in funding over 5 rounds. Thanks to liquidation preferences, it is probably a safe bet to say that if Twitter gets sold in 1 year for $5bn, an employee who started yesterday would see enough to put a down payment on a studio condo in Fresno.

A friend who has worked there for a while saw like 15 basis points. This was before the $100m in funding. I'd be surprised if someone were to see 1/5th of that now.

Perspective? Google took in like $25m before their IPO.
Absolutely brilliant! Just start with all of the articles citing direct actions on his part. I'm sure the compilation would end any speculation as to the nature of his character, if there ever was any.
I once wrote a Crypto plug-in for mIRC that relied on one time pads distributed by floppy disk. (Someone created the masters and mailed them out.)

A floppy disk worth of IRC chat is actually quite a lot but it also had a 'degraded mode' which used the last chunk of the random data as a symmetric cypher key. That would keep things going until the next disk arrived in the post.

This just goes to show that if you are stupid enough to tell a geek what the best answer is then there is a pretty good chance that they will confuse it with the right answer.

My only hope is that our inane chats about movies are, even now, causing cycles to be burned on a NSA supercomputer somewhere :-)
Thanks for answering my curious questions so far. =)

Since I messed up formatting earlier, my first question about generating keys with this particular exponent was hidden:

Do you know how to generate such a key pair using gpg (or another tool)? Or is this done automatically?
In OpenSSL you can pass your public exponent to RSA_generate_key. I'm not sure about gpg... it has been a while since I last generated a key.
In IT; Sentiment is Antiquated
There is a typo "which which" on the 2nd "Side channel attacks" slide.
My point was that you don't need Quantum computing to break all existing crypto algorithms within a couple decades. QC just makes matters that much worse.

(Downplaying Quantum Computing ostrich-style is very popular in classical crypto circles for some reason, but that's a topic for another day!)
I think Wave's lack of success is due to a lacking user experience.

Google integration hurt wave because it forced your friends also into that model. Etherpad had a much lower 'buy-in' that made it great for experimenting. The lack of folding messages hurt the returning-user experience - I've read the same msgs at the top of the wave since we started it. Outgoing email also seemed to really like to quote the first message on the wave, and never give anything more useful than 'the wave was updated', so I'd put the effort to login only to find the only activity was a non-committal 'uh huh'. Facebook at least tells me who messaged me.

I believe in Wave's innovation to realize I'll email out a rough draft of 'things to bring on the trip' and the other people on the thread can both respond as a new message (hey, whats the plan for food?), and also to add/remove/comment on my list of things to bring.
Step one: Don't eat
I disagree with that analogy. AOL was trying to put the entirety of the internet within its walled garden: the Web, games, email, everything. Facebook is only trying to dominate one space: communicating with your friends. Admittedly, that is a very important area, but the benefits of having all of your friends on one platform are huge, and Facebook is simply working towards that.

Further, what's "the open internet" in your analogy? There is no decentralized social platform that at all compares to Facebook, and currently I fail to see how there could be one that is viable. Diaspora will certainly not be it, unless the readership of HN encompasses all of your friends.
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On fivesecondtest, do testers behave like "real" visitors or are they "overqualified geeks"? How similar are they to the average visitor?

Does anyone have first hand experiences?
I'd also be interested in an event like this if it was held in the UK. If it's on Justin.tv, will the stream be made available as a video later?
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Lispjobs
This blog post is pretty incoherent. Backstory at:
https://bugzilla.redhat.com/show_bug.cgi?id=581256

Looks like the Chrome guys want privs so they can increase the chance of renderer processes being killed if the OS runs out of memory. (e.g. instead of Xorg.)

OP arrives after a while and writes a bunch of sentences that are about as confusing and disconnect as the linked article. Proceeds to throw a tantrum. Gets "butthurt" and posts link here?

Fin.
Indeed. Our organisation is incorporated in the Netherlands and four people work there. In all the other locations each "employee" is incorporated under their own name and works as "consultants" for our organisation. It is a higher administrative burden on the individual, but by far the most flexible way of doing it, and probably less work and certainly cheaper than incorporating an entity for our organisation in every country.

Doing this would be more work and would require actually having to employ people in these countries, not to mention consolidated accounts from three subsidiaries, with local accountants, audits etc.
I don't even like sports but this article had me glued to my monitor at 4:48 am.
"... 'Wow. You make an incredible amount of bad assumptions' that only insult and don't offer a counter-point, it shows a downside of a self-regulating community. And in this case, it also shows a downside of allowing complete anonymity of a user in a community. ..."

You are right.

Ad Hominem (HD1) isn't warranted, nor is the tone (HD2) ~ http://paulgraham.com/disagree.html
Nobody bothered to point out the guidelines (bottom menubar, 5th along) which give hints especially on replying to comments. Also nobody bothered to point out "How to disagree" ~ http://paulgraham.com/disagree.html or "Trolls" ~ http://paulgraham.com/trolls.html both useful to read and understand.

Stick around, read, post useful articles and don't be afraid to thoughtfully comment.
Good writing, interesting topic, can't resist a couple of quotes and notes:

As a part of my continuous moral degradation and the resulting increasing alignment with the forces of Evil

Nice opening hook. By coincidence, I'm reading Norman Mailer's The Castle in the Forest. Feels like a supplement.

While the general concept was impressive on many levels, the details were unclear.

That sounds like C.N. Parkinson. Perhaps crossed with "Nothing yields meaty problems like starting with the wrong assumptions." (http://www.paulgraham.com/hp.html, via a comment in the 'gist' linked in yesterday's All Code is Ugly http://news.ycombinator.com/item?id=1343883 )
If you were interesting to them, they would just have copied the disks while they were in the mail system. An OTP transmitted over a vulnerable channel like the postal service is not that strong, you have to exchange it in person.
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Depends on your W, but I'd rather be worried about being caught in front of my desk with ping-pong eyes.
Read some more of Aaron's stuff, including his Authoritas thing he promotes at the end of the article, and he's the one who comes across as the possible sociopath.
I agree, combining note highlighting and smooth moving marker would seem to be the best way to go.

It's probably best if the moving marker is a 1-inch-wide bar that is very subdued. In my head at least, this would work best.
The interesting takeaway for me is that Steve recognizes Apple's weaknesses (not being able to sell into the "enterprise") and is laser-focused on the consumer market. Seems to have paid off.
How to Think Like a Pioneer
As moe has pointed out, you're not going to instantly displace entrenched software, especially in businesses. So, you need a migration path. People already have bucketloads of documents, and many of them are locked up in bizarre proprietary systems (I'm looking at you, Blackboard!). Some kind of bridge is critical, and email is the prime candidate.

I would also figure out some precise user scenarios and workflows, then build a tool tailored for those. If you have clearly defined targets, it should become clear where you can insert a new product.

For a great example of how not to do it, look at Google Wave. Wave is fantastic, magically engineered, and has all sorts of way-cool properties. Search, tagging, collaborative editing, document uploading, you name it. I've used it on a three person project, and it was the best documentation/communication tool I've ever used. I love Wave.

However, I never use it anymore because it's got some deep problems: Wave depends on everybody using Wave. There's no good way to hook into other services. You're confined to the web client, which is a big turn off for some people. Finally, people don't really understand it. What is it good for? Google's answer is "everything", but that's not really an answer.

Using Wave is like being trapped on some technological Galapagos, where everything is cool and exotic but totally detached from the rest of the world. That's the kiss of death, especially when you're a startup looking for traction.

That's my two bits. Good luck to you, and congratulations on getting into YC!
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Have you considered automatic page turning by analyzing the microphone input?

You would probably have to do 3 different position finding methods to gain enough stability. Like combining (1) FFT note pitch recognition with (2) some beat tracking algorithm and (3) some homegrown rhythm-analysis.

What do you think about that?
And Aaron Greenspan is at it again.

Seriously, he needs to find a new hobby. He looks like an absolute twat, pursuing that "OMG Mark Zuckerberg stole my idea" horse for half a decade.
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Thanks! That slide was written somewhere around 5 AM...
Paper is at http://arxiv.org/abs/0912.0888 . The Boltzmann equation describes the motion of particles in a fluid. If I've understood the opening section of the paper correctly (which I may not have done), other people have found solutions of the Boltzmann equation under some rather unrealistic assumptions about the distribution of relative velocities when particles collide. (AIUI you're supposed to work out that distribution by doing some actual physics, then plug it into the equation; the solutions describe the behaviour of a fluid with the properties encoded in that distribution.) Specifically, past work has required the assumption that collisions at shallow glancing angles never happen, which is typically far from the truth. What's new in this paper is that they've got rid of those unrealistic assumptions. I think.
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Facebook downplays privacy crisis meeting
IPad, There for I Yam What I Yam
The GUI GODFATHER
Whatever they say, the "We've reached 450 million users" blog post is at least a month overdue, either they are not reporting it or haven't reached it yet.
>Don't even dream about storing your user's passwords on your server. No, not even if they are encrypted.

While I always follow this when it comes to ssh logins, how do you suggest doing this for webapp logins? force everyone to use client certificates? mod_auth_kerberos? (hell, for that matter, kerberos keeps user passwords on the keyserver)

I'm working on bringing my web bits up to snuff, and I'm seriously considering forcing the use of client certificates. That, or just saying 'fuck it' and writing a ncurses billing app that you ssh into. no web interface at all.

Both of those solutions might work okay for me because I have a highly technical userbase, and my marketing is strong enough (or rather, I have other bottlenecks that are bad enough) that I can turn away some customers, but I don't see them working for most web applications.
Larry Ellison starts to reign over Sun
I've been noticing the same kind of play from Nicolas Batum over the last couple years: http://www.youtube.com/watch?v=F-Q4GVXGMlE
There are currently (in my mind) two commercially viable options in the "wiki" style arena.

Firstly a mashup of a wiki and Etherpad. So you can browse the wiki as normal - but when it comes to editing you get an Etherpad style interface to allow collaborative editing.

Secondly (and there is a big business here if you get it right) is document management storage. Everything has to be versioned and audited now to meet ISO standard. A server that would accept uploaded word, excel etc. documents, let you edit them and create new ones would be killer, you could track versions automatically and place it prominently in the document as well as maintain an audit of edits. Another wiki aspect would come in in terms of discussing the documents (like a talk page) which is massively useful.
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