skysight-inc/HackerNews huggingface dataset:
I think the stock market is a lousy way to teach kids about investing. In fact, I'm not even convinced that interest-bearing accounts are of much use to kids.

The time value of money is significant to a kid. Consider a kid with, say, $500 from babysitting or lawn-mowing. This could buy the kid, say, a really nice bicycle (+ helmet, lock, rack, basket, chain lubricant, etc. Assume they're old enough that they won't outgrow it for a while.) Alternatively, the kid could wait a year and expect to have an extra $20 (given the 4% annualized inflation-adjusted return on the market - what, you're investing, right? not gambling? then you get 4%. :P)

Which would you choose: about $20, or a year with a bicycle? Opportunity cost! And the $20 will just about cover the commission on trading. Ouch. Transaction fees.

The reason that the stock market is attractive to adults is that we generally have an adequate supply of Things that we need to make use of our time. There isn't another object we can spend $500 that will make that sort of an impact on our lives. Diminishing returns!

(Also, we have tens of thousands of dollars, so we can invest without being slaughtered with fees.)
nice. test out your hypothesis first. :)

try OSQA. Heard it's good. thanks. get a host like uhm webfaction.

Goodluck! Outsource to RoRers / pythonistas in the Philippines.

I heard this guy is good - bryanbibat.net
Should you pay more taxes? If not go to the PHilippines. I heard they have huge tax rates there. Not just tax rates sometimes, more hidden rates :)

--edit--
i dont know felt this was relevant to the hacker community. sean parker is a hacker of mp3's, so this must be relevant.
> Apple [...] things that just work for most people irrespective of prior computer usage.

I've spent way to many hours helping fellow developers, friends and relatives to debug their Apple. Apple does not make things that just work irrespective of prior computer usage. People get totally lost with Apple just as they do with other environments and that is indeed irrespective of prior computer knowledge, which means so-called developers also get lost (MySQL-python anyone? Or maybe you'd rather have another slice of RMagick?)
For me, Ubuntu has always been the "Linux for newbies" a little bit like Mandrake was in the time. I'm not saying that all Ubuntu users are newbies.. but Ubuntu is the distro to starts with if you're a beginner. Lots of my university friend who had no knowledge of Linux would get up and running with Ubunty in minutes. (A live cd, tool to help create partitions, [next], [next], automatically configure network). I mean, a Windows user would almost feel at home on Ubuntu.

Soooo, I find it weird that the author complains about Ubuntu saying it's not the right direction. We all know there are dozen of distributions and dozen of window managers. By all means, if you don't like the new updates, just take a WM more lightweight (For instance, fluxbox, awesome, stumpwm, xmonad, etc.) As for the distro, I'm using ArchLinux for a couple of years and I'm loving it.

It's not that I don't like beautiful intuitive UI; it's just that it's not for me (At least on my computers). However, I've got an iPhone and I love the fact that everything just work. But please, don't force me to use GUI everywhere on my desktop; let that for people who enjoys the everything just work.

But then, maybe I'm wrong. I assumed that Ubuntu always was axed for beginners.. Was I wrong with that assumption?
When he speaks Italian he swears at one of the workers.
https://github.com/NV/chrome-devtools-autosave
You might find this useful.
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I think part of Shuttleworth's philosophy is that he wants Ubuntu to be(come) an OS that the rest of the world can use, not just the traditional Linux power users, but even the emerging computer markets that may not be able to afford the latest and greatest hardware with a proprietary OS.
clickable: http://startups.org/

Very clean interface. Love that.

Should the co-founder list get long, would someone have to scroll and read through all the entries? I think adding some quick fields like "Technical/Non-technical" or language-specific lists along with filters would be pretty easy to implement to help organize the data. Don't go overboard though and turn into partnerup.com

Again, loving the simplicity of use and minimalist styling. Nice work!
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I Hate Student Loans
Polyphasic sleep. Has anyone tried it?
It's extremely interesting topic. Has anyone tried? Tell your story if you have.

More info about it:
http://www.dustincurtis.com/sleep.html
Apple has made a business selling smartphones to people who covet them.

Guinness made a business selling beers to people who covet them.

Marlboro made a business selling cigarettes to people who covet them.

Smith and Wesson made a business selling guns to people who covet them.

No one needs an iPhone. No one needs a beer, or a cigarette, or a gun. People want them, and some people covet them.

You're not doing harm when you're selling a gun to a farmer who want to stop coyotes killing his hens. You're not doing harm when you sell a smartphone to a businessman to make his life and job easier, or more productive. You aren't doing harm selling a beer to a guy who drinks every other saturday night, and not when the kids are out and you might have to drive. You aren't doing harm when you sell a cigar to a guy who smokes one every new years.

You are doing harm when you sell a iphone or an ipod to someone living in poverty, because they don't want to look different from their coworkers or friends. You are doing harm when you sell a gun to an 18 year old in Detroit who's going to use it to rob a convenience store. You are doing harm when you sell a pack of cigarettes to a chain smoker. You are doing harm when you sell a bottle of vodka to an alcoholic.

It's easy to say Steve Jobs is 'evil' because he made people covet iPhones. But I don't covet iPhones, or iPods. I think he marketed them excellent, but he didn't make me buy one when I couldn't/shouldn't or didn't want to. I drink two beers maybe one night in a month. I've gone through half a pack of cigarillo's in a year and a half.

I don't blame tobacco companies because smokers wan't to smoke. I don't blame distilleries because alcoholics want to drink. I don't blame Blizzard because Warcrafters want to WoW. Just like I don't blame Gillette because people want to shave every morning.

If you covet something just because someone marketed it, then you've got something really wrong with you.
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I think this is a fair comparison and the truth (that many cannot swallow) is that Javascript is simply too slow for non-trivial computations. All these talks about Javascript finally catching up in speed to native, and now a slightly non-trivial algorithm and Javascript falls flat in its face. I got similar result to pygorex in my run, and the Javascript implementation is indeed 60X slower than native.

Now compare that to HashSum, a a Silverlight-based implementation of the SHA-1 (I verified that it generates the same result), I clocked it and it is 20X faster than the Javascript implementation, and ~3X slower than native. Try it at http://www.hashsum.com (I wrote it; Silverlight required; sorry about the ad/layout, it was an "exercise" a while back).

So HTML5/Javascript is the future, and the future does not include Flash/Silverlight. Perhaps. But this experiment shows that Javascript is clearly way too slow compared to native or plugin. You could argue that the plugin-based scenario is going out of favor. Politics, competition, distribution, etc, are all valid reasons. But "Javascript is now just as fast" isn't one, because it is not. Those who are gung-ho about how fast Javascript is needs to write their own SHA-1 implementation that beats http://www.hashsum.com ... or at least not be blown away by it.
"Useful Javascript stuff I can NOT use (because it implicitly blocks): Underscore.js"

Huh? So what are we going to hear next: "Don't use prototype inheritance because chain traversal implicitly blocks"? Idiotic advise.

How about: Don't hold the event loop for too long. The faster you return, the faster you can serve.
You might like to read this too, "Are you a programmer or a coder?" http://brajeshwar.com/2007/are-you-a-programmer-or-a-coder/
Create The Ultimate You
Let me know what you guys think about this.. Thanks..
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I'm fairly certain I've dealt with Problem Children before that this approach would not work with. "Dr" John Grubor comes to mind, but that was ages ago.
I've never understood this claim. I presume rich people don't shove money under their mattresses. They invest the money in companies, loan the money to companies, or put the money in banks that loan money to companies and individuals. How is that sitting on money?
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http://www.almstba.com/vb/t46640.html
This is going to backfire, bigtime.

The way it works is you will never be cleared, the security-theater machine has "eaten" you.

You can only give them more reasons to collect evidence on petty crimes, their original motivation for stalking you, even if your file was flagged accidentally, is long lost.

With half a million names on the "Terrorist Watch List", once they have ways to automate this (ala nationwide facial recognition and domestic drones) you will be stalked for the rest of your life by the government. You'll be 80 years old and they will have terabytes on you for absolutely no reason. But if you even accidentally commit a petty crime, they will happily share the info with local cops to hassle you more.
I love the idea of printing houses, for cheaper and faster construction. It could also mean that less waste is produced, less trees are involved, the whole process could be greener than what it currently is.

I realise that the idea of printing 3D objects on a large industrial scale is nothing new, but I am still looking forward to seeing the documentary because without people that are pushing the state of the art further we wouldn't be where we are today.
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Wow, so much to respond to...

I'll limit it to what I think is the core of your message:

Why would cyber criminals be more interested in breaking into some empty business desktop, if they can break into a personal desktop filled with personal information like credit card numbers and iTunes/Paypal/Bank logins?
>I understand that IO is expensive, but so is performing string interpolation on a string in memory 50 times (for whatever reason).

I think you are conflating waiting and working. Both cost time, but they are not the same. Waiting can be avoided (nonblocking), working cannot.

Iterating over an array in most languages probably takes .000001 seconds. Reading from a bad connection could take 30+ seconds, or whatever your servers timeout is.

Since the 30 seconds is spent _waiting_, it can be avoided within a single thread of execution. On the other hand, if you are spending 30 seconds _working_ to compute prime numbers, this cannot be avoided in a single thread of execution.

Blocking vs nonblocking refers to dealing with waits. Does each IO operation do the waiting, or does each IO operation return immediately and we pool waits into a single poll() (etc.) call?

Parallelization refers to dealing with work. In the rare instance one needs to generate huge fibonacci sequences, one can do so in a seperate fork\process\thread\cpu core\machine, and report results back to the event loop via pipe\socket\shared memory. [1] Multiplexing waits in a single thread makes sense, multiplexing work in a single thread such as array iteration does not: on the contrary it sounds like a good way to increase the overhead of iteration and generate more work rather than reduce it.

It's confusing because some tools such as threads can be used to address both the problem of parallel work and the problem of parallel waits.

[1] edit: quick example in lua:

-- In fork, write to the blocking end of a pipe
local r = formfork(function(w)
local work = fibonacci(10^10)
w:write(work)
w:close()
end)

-- In event loop, read from the nonblocking end of a pipe
readline(r , 1024, function(r, line)
print('got work', line)
close(r)
end)
Wow, it's really sad to see somebody so completely broken and brainwashed that he'll literally report his every move to authorities. If the government was monitoring his home with an iMac this would be right out of 1984.
What happened to opensparc's idea of an open cpu?
What happened to opensparc http://www.opensparc.net/? People worry about proprietary hardware, but here's a GPL 64bit cpu and there's no excitement?

As Oracle has control of Sun's assets, if Oracle wanted to release SPARC T3 as GPL, the Verilog would have already been released.

I've gone to their website and it's bitrotting. I can download archive files, but there's no cvs access. I want to see the information mirrored to keep the the cpu alive. Maybe store the cvs on github.
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I truly hope WebOS, or at least enyo, has a bright future somewhere.
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How can I get better at self-hypnosis and meditation?
That might be a good point if it weren't already so simple to build user interfaces that are simultaneously obvious to newbies while at the same time being ridiculously extensible. You just build it in a language that exposes a repl. Mozilla doesn't even do a particularly good job at this (given how they bury the replness), and it's still fostered a plugin ecosystem that has kept it competitive despite competitors eating its lunch on performance grounds.
And interestingly enough to what some are complaining about the screen saver, on OS X the screen saver, desktop picture, and sound theme are bastard children with near zero updates in a decade. Straight up. But they're still customizable for people who want to.

What's wrong with that? Just provide a standard install location and let those that want to utilize it do so.

As an avid Mac OS X/Linux/Ubuntu user, I really truly don't get the direction Canonical is heading with Unity.

edit: spelling
It was clear who had the power in this situation. And when you’re face to face with someone with so much power, you behave in an unusual manner. You dare not take any action.

Sadly that's far from unusual. Meek compliance is how most people (myself included) tend to behave when confronted by federal or state agencies, regardless of how their privacy is being invaded.

If more people raised a stink, the number of US citizens subjected to such a thing would rapidly drop. People would not be dragged from airplanes or into questioning at the slightest hint of suspicion from highly questionable sources. You want to see what's in my storage unit? No problem, go get a warrant. As an aside - if the author was mistaken about its contents they just lied to a federal agent which itself is a crime, regardless of any original innocence).
Anyone know if there is anything recent that's worth knowing about this topic now? (Like an updated version of this document?)
Computers don't control us, no, we control them. But for someone like a factory worker or call center rep, the computers might as well control them, because the humans in charge will gladly manage based on automatically-measured performance numbers without knowing or caring about what's actually happening.

The computers can track, measure and grade everything they do. For example, when I go to Target, I can't help but notice that their checkout screens have a pass/fail system grading whether the checker has processed the person quickly enough. In other places, computers may even make decisions on who to fire based on the rules fed to it. For example, the computer's report might say that employee #12345 has high average call lengths. They don't care if it's because that phone rep was unusually helpful. The computers enable them to enforce their policies to the letter. Even if the rules present no win situations at times, they'll just fire the guy for breaking the rules and hire someone new.

So like I said, the computers are never going to control us. We'd hack the damn things if necessary to do things right. But for the people at the bottom of the food chain, a computer might already be their boss.
I was in the same boat and ended up switching to Xubuntu -- and I don't regret it for one second. I get all the good stuff ("just works") with a sleek, customizable UI, that also happens to be very frugal wrt. system resources. It's a win-win really. :)
Two crazy Mexicans outside Startup School
Why not embrace actual socialism, instead of trying to shoehorn it into capitalism? If your society relies on the rich to hire staff who don't add value, it is essentially privatized welfare.
This is very cool, does anyone know what the binder is?
HN itself is open source (included with Arc: http://arclanguage.org/install), as is reddit (https://github.com/reddit/reddit/wiki). It does sound like Openqa is a better option though.
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Would Hedy Lamarr inventing spread spectrum communication count ?
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I have no trouble saving the file or viewing it without scribid using Chrome.
The trees definitely do distort certain features though - one good example is the tree lined sidewalk next to Buckingham Palace - when viewing in a top down view and then tilting the camera, you can see how the technology assumes the content under the trees (the sidewalk) would be the same outline as the top down view of the trees that are hanging over the sidewalk. This causes an interesting warp on the rendered view. It's interesting how realistic everything looks until it reaches that issue. Still a very nice example of the technology in use.
Exactly. Even buying treasury bonds is helpful because much of the money pays federal employees and the military, and the rest goes to the private sector in the form of contracts.
Aren't almost all rich people rich in stocks? Take the richest billionaires: http://en.wikipedia.org/wiki/Forbes_list_of_billionaires . All these people are rich through owning companies; they don't have loads of actual currency, they just own stocks in companies that employ people.
This is a great example of how our government is making new enemies everyday by investigating everyone. They took a happy-go-lucky college student and turned him into an activist against government surveillance. I wish government employees would think more about the consequences of their actions against common people, but I fear that they are too preoccupied with their Hollywood-cop fantasies.
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IPhone battery drain--'Setting Time Zone' may be culprit
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Hey guys! It was great meeting some of you today at Startup School. We came all the way from Mexico to this event and it was well worth the trip. It's our first time in the Valley, hopefully we'll be back in a couple of weeks for a YC interview!

Our startup is called Sidengo (http://sidengo.com, http://twitter.com/sidengo) and we'll be launching in a few weeks.

Any other people from outside the area today at SS?
I think the reality is, they don't know what the hell to do with webos. In owning a touchpad myself, I see a bit of the reality distortion effect that affects all of us webos users. Webos succeeds in the emotional attachment, but fails in just about everything else. I love this thing so much, but it really sucks when you compare it to an iPad, or even an android tablet.

Hp made the best decision by going with windows8 moving forward. Ms has a much better tablet foundation with metro and will have the resources to make sure win8 will be a success. Webos has no hope, I'm sad to say. I think the best thing to happen for us consumers is to see webos open sourced and see what the community does with it.

I'm curious to see what Whitman decides... I bet she gets sucked into this vocal, but minority webs support group and drops more resources on this dead platform. Don't envy HPs situation.
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I sprayed out my tea all over the keyboard! Seriously?
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great talk. for those who missed it:

http://www.youtube.com/watch?v=ovKnIa9a5zs
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I consider myself ideologically more in line with Debian, but their refusal to support my wifi card along with an install process that's just got a few nasty quirks made me wary when I made the switch to stable a few months ago. Multiple spectacular failures upon upgrading to testing pushed me back to Ubuntu for the time being.
Seeing as how HP no longer has any devices for sale which use WebOS, the shutdown of the WebOS unit seems like a foregone conclusion at this point.
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There's nothing else to backfire as he is already tagged for life. I think the best thing he's done has been to go completely public with the story and go on to teach at several universities.

Here is his wikipedia page: http://en.wikipedia.org/wiki/Hasan_M._Elahi

The feds probably won't harass him directly anymore, but he now has the joy to document how the automated security-theater system will wrong him for the next 50+ years.
I'm going to guess this probably isn't the first time we crossed paths then :)
Have you guys seen this Food Printing?

http://money.cnn.com/2011/01/24/technology/3D_food_printer/i...
“[Our] goal is 200 million users of Ubuntu in 4 years. We’re not playing a game for developers hearts and minds – we’re playing a game for the worlds hearts and minds. and to achieve that we’re going to have to play by a new set of rules.”

http://www.omgubuntu.co.uk/2011/05/mark-shuttleworth-deliver...

Also, re: screensavers -- upstream GNOME removed that ability, and Ubuntu inherited the behavior. From what I understand, we're putting it back.

[canonical employee, speaking on my own behalf]
your first two complaints are actually fixed in Lion- and I have to disagree with your third. There's nothing in OS X you need to use a keyboard shortcut to do, and it's easy to find the shortcut for a menu item- it's displayed on the right side of the menu.
Siri now functional on older hardware
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I know that stark interrogation room and the L shaped desk and camera well. The waiting room he describes is called secondary processing and it's a very unhappy place, mostly folks of foreign nationality about to be deported back to their home country. I met a brazilian guy there once who was almost crying and offered him some gum, trying to offer encouragement, condolences, whatever.
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