skysight-inc/HackerNews huggingface dataset:
I agree wholeheartedly. Definitely a bully sort-of post for no good reason. Reminds me a bit of the sort of chip-on-their-shoulder hackers that aren't very fun to work with.

I think it's fine for people to offer constructive criticism to those trying to help the development community, but I don't see any reason to be so mean about it. Belittling them is a great way to discourage people from exploring better/more approaches down the line. I don't want to see that as I'm particularly fond of ways of capturing knowledge that old technologies left on the table-- our bug.gd error search site is built entirely on that premise.

Towards his arguments, Even if the world's best hackers won't have the time to toss in help on the site, I know I've had some of the best learning experiences in my life because I took some time to explain something I didn't know 100% before answering. That's part of how you get to be an expert. Even if the site doesn't produce the world's most amazing answers, perhaps it will help build the next generation of developers into solid hackers.

Anyway, enough with that kind of meanness. I know from doing thousands of code reviews in my career that there is no developer who codes things perfectly even 80% of the time. Lighten up and stop judging people.

If you want to show "the blind" how awesome you are then hop in there and toss in your better answers.
"... How about figuring it out by reading the answers and analyzing them? Using my brain to critically assess what people tell me has always worked for me ..."

Sure you can. But is there a better way? Can your way scale? Will your brainpower & intelligence be recorded and replayed for others?

Look at it another way. Would you take this approach to evaluating other types of information, links for example? Would you make a list of all the good websites and organising them for others to read? Or would you organise links utilising computers, software & inferred information form humans to do the same thing.

Yahoo vs Google?
To clarify for non-Pythoners/non-coders: If you assume "nums" already contains the list, most of his code above is setup. You only need these two lines of his code to get the answer:

import operator
answer = reduce(operator.xor, nums)
Dramatic title...reminds me of dig. Best part: if the author is wrong (likely), everyone will have forgotten his prediction.
Would you make a list of all the good websites and organising them for others to read?

Aren't you posting on a site that does just that? Manual contributions of stuff that people found interesting? Or were you thinking more of something like bookmarks in my web browser?
"... Anyway, enough with that kind of meanness. I know from doing thousands of code reviews in my career that there is no developer who codes things perfectly even 80% of the time. Lighten up and stop judging people. ..."

Good point. The telling point wrt StackOverflow I've been learning listening to the development converstations ~ http://blog.stackoverflow.com/2008/08/podcast-17/ , then watching how the problems are solve and watching the results. Talk alone is rather hollow.
Good point about the bunkers. Would they really initiate a conflict in space knowing they could only shoot down 5% though? Seems to me if you cant take them all in one go then you probably shouldn't bother.
"This conjunction of an immense military establishment and a large arms industry is new in the American experience. The total influence -- economic, political, even spiritual -- is felt in every city, every State house, every office of the Federal government. We recognize the imperative need for this development. Yet we must not fail to comprehend its grave implications. Our toil, resources and livelihood are all involved; so is the very structure of our society.

"In the councils of government, we must guard against the acquisition of unwarranted influence, whether sought or unsought, by the military-industrial complex. The potential for the disastrous rise of misplaced power exists and will persist.

'We must never let the weight of this combination endanger our liberties or democratic processes. We should take nothing for granted. Only an alert and knowledgeable citizenry can compel the proper meshing of the huge industrial and military machinery of defense with our peaceful methods and goals, so that security and liberty may prosper together. "

Eisenhower's Farewell Address, 1961
Actually in lisp (and scheme as scheme is a dialect of lisp), the line between library and language is so fuzzy that its practically invisible.
Survey: IT staff would steal secrets if laid off
I don't see the appeal: It's even noisier than FriendFeed!
works great in safari, hopeful the coming re-imagining of firefox's javascript engine will speed it up greatly. reminds me a lot of the java interactions in the lively kernel, only without the vector images. http://research.sun.com/projects/lively/
it's not awesome. It's acceptable and you can get a job done with it as far as I can see.

The author hypothesises that people choose plain PHP over drupal because they are scared off by the many configuration options. I'd say it's a case of Drupal having a lot of crap that you don't need.

I'm not sure what the problem was, but Drupal is not the correct solution.
I really like the brussel sprout variation as the shape makes the rules more visually intuitive. i'm going to introduce this to my friends.
This is a great, thoughtful piece! Thanks for posting it. I have AS myself, and it was kind of neat to see someone attempt to explain it to the layman in a detailed, nuanced way, without just regurgitating the DSM IV definition and throwing in a couple anecdotes about an individual.
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The interesting thing about this, to me, is that this product already has been built several times over, but it has never caught on; this guy still got $375,000 for building a new implementation of an old idea.

It is the same thing with the Apple App Store. Nokia has had Nokia Catalog installed on all its phones forever but it never made any money with it. Then, Apple builds the second coming of Nokia Catalog, names it the "App Store," and starts raking in the cash.

Just because somebody else has done it, doesn't mean that it can't be done (again) more successfully.
Looks like a handy program but it doesn't support Picasa web albums.
i really think this has a lot to do with user base, while i mostly agree with you, i dont think most users think in terms of boolean values.
My main problem is that there's not quite enough competition in the ISP area. So if Verizon and Comcast both own newspapers we don't get any Craigslist.
That trick of his at the end of the post to give you access to StackOverflow is a classic. Funnier, though, if once you've done it, you use any OpenID at your disposal to log in - it generates an empty account for you within their system.

Of course, this could actually work out well as only people with a smidgen of interest in using the site will bother to try it.
To this guy's point.. yes, the blind can be leading the blind, but any answer is better than no answer.
Surprised? Not really. Ethics are at an all time low in the corporate world, and if some anonymous entity is going to lay you off, people wonder why they shouldn't gain a little "payback" value from it by stealing secrets? I'm not recommending people do this, but the motivation is obvious.
Soooooo slow (in Firefox 3). It is definitely do-able at speed though as http://www.classycode.co.uk/CoverFlow/ does it fast - the only problem there is the interface (a "wheel" like mechanism).
I've been playing this game over the summer on long train/plane journeys--it's brilliant. I incidentally stumbled across it on Wikipedia, too.
thats why companies let people go on Friday and tell them to leave right away.
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This is interesting - my StackOverflow answer (XOR) is now the subject of a blog post that's reached the top of Hacker News.

To clarify part of the article, the time granularity on the site isn't enough to pinpoint in what order the comments were made on the thread. Daniel Jennings' edit to his post existed before I posted my answer, so it's not his reply to my answer.

Every part of Stack Overflow is run and moderated by the community except one: the selection of the accepted answer. As long as you have one person in charge of selected answers you will always have to deal with their particular biases, which decrease the value of Stack Overflow as an objective reference to programming questions.

It might be a good idea that in addition to the answer selected by the asker that there be a community selected answer. This would be completely orthogonal to the up/down votes for the questions, and would only allow one selected answer per person per question. An approach like this would greatly serve to make Stack Overflow a more equitable and fair system.

In any case, I've had tons of fun learning new information and teaching people some of the tricks I know. I hope to see some of you there!
IMO you should never install anything you haven't before onto an important system. Install it in vmware, check it out. Mount the drive elsewhere and diff the filesystem and check for problems. You're way more likely to find a simple mistake that could cause your setup problems than a malicious attempt. You get that part for free.
I think most people indeed understand the concept of a "yes/no" question.
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When I bought a Lenovo thinkpad, I ended up paying around $20 extra just to get XP on it instead of Vista. And it came preinstalled so I didn't get an installation disc!
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"... Aren't you posting on a site that does just that? Manual contributions of stuff that people found interesting? ..."

And at the same time illustrating the point of a Usenet Q drifting from the point and increasing the noise :)
Their fervent sibling rivalry is the rare blot on a home life that seems almost idyllic.

This "blot" is probably a major source of his success. Competing with siblings (as with anyone else) fuels personal growth; sibling rivalry is a double win because it allows children to probe out "fair" ways of competition as well* . People too often confuse sibling rivalry with sibling acrimony.

* Children have to probe out a lot of unspoken rules for themselves ("Mommy, I have to poop!" "Sweetie, you say 'I have to use the restroom.'"). Learning these rules in your house with people you love means the lessons are less traumatic than having to learn them at 20 in the real world where the consequences are more serious.
Lots of js animation works great in FF3, but this is terribly slow.
To me it seems reasonable to have some kind of metering in place (a threshold could be placed at a high enough value that 99% of people would never run into it; the penalty for exceeding the threshold could be a slower connection, rather than a ridiculous bill statement). But I would find it completely unacceptable for an ISP to limit how users used their bandwidth.
How do we go about marking this junk as spam?
"... This is a great, thoughtful piece! Thanks for posting it ..."

There is more, "Delve into a brilliant young mind and the world of Asperger’s syndrome" on Catylst (TV sister program) and the story is a good one ~ http://www.abc.net.au/catalyst/stories/2346896.htm
Its not that big a deal.
The cookie just gives you access to the private beta (which you could have gotten by just sending them a mail).

Once you have access to the beta, you can always create a new account whenever you want.
Have a look at:

http://yosefk.com/c++fqa/defective.html
There seem to be a few different ways to use XOR on sequences of integers (or for exchanging the contents of two registers), and they're worth learning if you ever need to go on a job interview with someone who uses "Aha!" style technical questions.

Beyond that, however, I'm left scratching my head. Just the other day zenspider and I were debating whether the k combinator is a useful tool for programming or whether it is "clever" code. Am I wrong in thinking that using XOR for finding an integer that only appears once is rather clever?
The problem is that users typically read as little as is necessary to figure out what to do next--and very often, not even that much. Since the Windows dialog must be read entirely to be understood, it's more likely to be misinterpreted. E.g., a user may accidentally press "close," see the dialog, and think, "No, I didn't mean to close"... and then lose all their work.
My experience: Yes, a series of failed startups counts against you with many companies. Then again, if any of those had succeeded you wouldn't be applying there, and if you applied there on a lark they would have counted the successful startup against you.

My conclusion: Certain types of companies do not care to hire the kind of risk-taking individuals who chose to work for startups instead of putting in their five-to-ten at a more stable company.
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Let me sum this article up for you:

C++ sucks...blah blah blah...Java sucks too...blah blah...every OOP language sucks...blah blah...philosophy crap...blah blah blah.

No solutions, just bitching about how everything sucks, wrapped in enough pseudo-intellectual bullshit to drown a mule.
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You are correct - the problem was probably constructed with that intended result. The specifications are unusually precise when it came to how the input was formatted. If they were any less precise XOR wouldn't work.

..a number that occurs only once in a list which has all other numbers occurring exactly twice..
We've been using Anyvite to schedule our weekly poker games. In general, it's a great experience. My only wish is that I could copy an event to a new day and/or make a recurring event.
What is there to say about this that Gruber hasn't already said?

From http://daringfireball.net/linked/2008/08/31/reisinger

It doesn’t matter how well Apple is doing, how remarkably profitable the Mac has become, how remarkably fast Mac sales are growing — the idea that Apple “must” or “should” license Mac OS X to other computer makers will never die.
At Canada/USA Mathcamp last summer, a few kids found the Nim reduction for Brussel Sprouts for their project. Shame I don't remember it, though.
It isn't bad. Lots of interesting ideas. I like the self-criticism and multiple theories---your writing is quite uncommonly self-reflective.

Kinda amazing if this was only when you were 15. This stuff is extremely hard to articulate.

Can I ask you .. when did you "abandon the theory ?"

Also, what kind of stuff did you read before writing this paper ? What kind of stuff influenced you ? I would be curious to know how much you read about psychology, behaviorism, neuroscience etc. before writing the paper.

Read minsky's books. Society of Mind and Emotion Machine. These are the most comprehensive overview to AI/computational psychology. EM's got a lot of stuff about 'consciousness' and what it means to be relatively conscious. I like that you don't slip into metaphysical crap about it, but rather go into mechanistic explanation of the phenomenon.

http://web.media.mit.edu/~minsky/E4/eb4.html (the server is down..check in a couple of days)

Here's a recent lecture by Minsky about his ideas:
http://mitworld.mit.edu/video/484/

Minsky had the idea of low level / high level brain which he expanded to a 6 level brain (like your stuff in 'feedback to the theory' section). It was partially implemented in Lisp by his student Push Singh in 2005 in his phd thesis over at mit. I think his work would roughly map to your 'illusionary and actual machinary' idea. The illusionary machinery constantly represents the actions of the actual machinery. This is what you perhaps mean by 'sends partial information. Note that the illusionary machinery needs to be able to influence the future actions of the actual machinery. I like that you have multiple goal types.

http://web.media.mit.edu/~push/

Also read the writings of Aaron Sloman over at Birmingham.
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Well well. So now I know.

We've come a long way. From $10.6k, 70kg recipe computer with an integrated cutting board, to a $200, 0.5 kg recipe computer with touch screen.

The start-up that finally cracks this recipe problem will really make it.
What is really needed is a way to bridge between the current way of doing things and the online world. For example if you could take a snapshot of all the information on that kiosk in the park on a daily basis and use it to populate a website.
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You mean receiving SMS messages and putting them on the web, or typing messages into a web page and sending them out by SMS, or both directions ?

I advise purchasing a real cellular modem, such as from MultiTech, putting a SIM chip in it from a plan that offers unlimited text messaging.

However, if you are trying to just whip something together quickly, you may find this useful:

http://www.textmarks.com/

You can use that service to receive a text message, and then have it call a URL, and send the number and callerid and other information to your server.
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"Yes, it was designed to be general purpose, but is it? I mean, do people use it that way?"

I make my living writing cross-platform desktop apps in Ruby.
... the players cannot affect the result by their play ... a game starting with an odd number of crosses will be a first player win, while a game starting with an even number will be a second player win regardless of the moves.

That makes the brussel variation a lot less interesting I think.
Agreed, though they shouldn't be allowed to label that access as "unlimited".

Also agree with the poster below who bemoans the monopolistic nature of broadband. Many markets have only one or two viable options for broadband internet access.
"There are too many clueless people who pick up Python and love it and swear by the gods that there is no language like it, even though their experience with languages is summed up with C++, Java, and now Python. "

To be fair, the same seems true of Ruby (mostly via Rails); they come from Java or PHP and declare Ruby the pinnacle of language design.

(I'd like to think, though, they are a mostly a noisy minority. There are a lot of Ruby, non-Rails Ruby, developers who just quietly go about their business.)
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All they need to do now is make them a little larger, attach a minigun and some missiles and Skynet will be able to hunt us down quite proficiently...

... while doing loop-to-loops.
There's not enough information on the front page to entice me to sign up. I suggest you add a bit more description as to what users can do on the site.

Also, I suggest the usual HN advice: let users do as much as possible before requiring them to sign up.

Good luck!
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Wait... don't the two solutions have the same time complexity?

The bitwise XOR approach should depend on the maximum size of the numbers (say k) along with the length of the array (say n) as O(nk), and just using radix sort on the array will take time O(nk) too.

If you assume that bitwise XOR is constant time, that implies that the numbers in the array are bounded by a constant, and therefore Radix sort can sort the array in O(c.n) = O(n). In either case, they have the same running time.
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I have a feeling Intel would give TechCrunch the Atom processor for a ridiculous discount, just for the publicity and the proof that embedded processors can have a market.
Ah cool thanks. Textmating in my 'why use we♥places?' story right now. :)
I couldn't figure out what the goal of the site was. Now that I've clicked around more, it seems a little like 43 Places (http://www.43places.com/), but even now I'm not sure whether I'm supposed to build a collection of places (cause of the "I've been there!" links), learn more about interesting places through comments, share/tag photos ala Flickr, or what. You can possibly be all of those things eventually, but the homepage needs a clearer call-to-action.

Also, minor nit, if I click on Register or Login but change my mind, there's no way to close the dialog.

Very nice-looking!