skysight-inc/HackerNews huggingface dataset:
I tentatively don't agree with your Rindler horizon analysis. Inside an inertial frame, you don't see the Rindler horizon, because only the accelerating observer can see it. If you are in the accelerating frame of the observer, the apparent position of the Rindler horizon will vary, depending on your position, so you can't actually cross it; but in any case you are not in an inertial frame. Physical laws that hold in any inertial frame do not necessarily have to hold when observing from a non-inertial frame (for example ability to signal between any two points).

At this point, my understanding of physics gets hazy so I'm not sure how much this extrapolates to the black hole case.
what is your real point? So what how he got rich?
I'm sure they are trying to be useful, but I don't think it is the right choice of question to ask the community of a blog that pretend to bridge CS theory with practice.

For a practicing developer, that is like finding a professional carpentry blog with the question "Can you think of any practical situation where a hammer is useful", so I fear that will taint the opinion of those whose first contact with that blog was through this link.

At least they should have answered themselves - or since that's what they are suppose to do - talk about some theory that could render source control obsolete ?
They make pretty good coffee, and more to the point, they make it consistently, whatever continent you're on. I've drunk enough terrible coffee for one lifetime (and 90% of small independent cafes make terrible coffee), so unless it's a place I know or I have a really solid recommendation, I'll go to Starbucks.
Raising a child with a strange characteristic...
Typing Free Captcha
But the article did not talk about the latest school tragedy. It talked about gun control in general, including using gun to commit crime like, for example, robbing a bank.
You repeat yourself yet again. How exactly can you claim with a straight face that a workspace doesn't need to be referred to in $GOPATH, and then proceed to claim that you only need to set $GOPATH to a directory which contains those workspaces? You start off your post by claiming it's not true, but then you repeat exactly what I said. Are you joking?
The problem I have with the Keynesian argument is that it cannot be falsified . They can always claim that the government did not do "enough" to stimulate the economy . One only needs to examine the case of Japan which spent huge amounts of money on ultimately pointless stimulus which did not leave any lasting benefit to their economy . No amount of stimulus can jump start the economy back into its unsustainable ways of debt fueled over-consumption . What might really jump start the economy are technological innovations in areas like energy and not unfalsifiable economic dogma forced upon us by ivory tower economists.

More information here :

http://www.theatlantic.com/business/archive/2010/12/japan-an...

EDIT : I would like to add the housing bubble was the deliberate result of Fed policy attempting to recover from the internet bust in 2000 . The crux of my argument is that there can be no real growth without an improvement in per person productivity and fair means of redistributing the resulting gains . The problem I see with stimulus is that we are allocating scarce resources according to arbitrary and unfalsifiable theories to achieve more growth but what ends up happening is that significant resources are used up in building bridges to nowhere and unused airports etc . Then the debt on those becomes a long term burden rather than a benefit.
The article failed to mention the pitiful level of cuts that have actually occurred! The USA has cut further and quicker, it is nowhere near the level of Irish or Greek austerity. The UK is not experiencing austerity.

The NHS (major spender) was protected, the welfare bill has gone up massively. The cuts amounted to a few departments and haven't been fully implemented yet.

The private sector has created many more jobs than have been lost from the public sector, but lots have gone to non-UK nationals, leaving unemployment down but not by as much as expected.

The Tories have taken the flack for cuts/austerity without actually really having it, it isn't in Labour's interest to expose this.
First Mac OS X fake installer pops up, racks up your mobe bill
Yes sure, common sense right? But the deficit has actually increased. So not only are they targeting the most vulnerable, but their measures aren't even working.

http://www.guardian.co.uk/business/feedarticle/10539437
Just to be fair - it is less friction than a typing captcha. I still think the security of it is pretty weak. Possible vulnerabilities include:

* Moving the slider bit by bit and OCRing will solve 90% of the images I've seen.

* If the image selection is small you could just build a DB of all slider positions and just teach it how it is supposed to look once.

* It's not only easier for the users. It is also easier for captcha solvers in India, China, etc. This will improve their productivity immensely and free up their other hand.
Wow computer science meets Greg Bear, I think I need to now go write a short story featuring a supernova powered super computer.
Fonts eat a bullet in Microsoft security patch
I once had a teacher who would ask: "Who got that?" And then pick one of those not raising their hand: "What did you not understand?"
Is concurrency really that important for numeric work? Surely parallelism is what you care about.

Many numpy primitives are already parallel since it basically just hands off to your BLAS library. Beyond that there is numexpr which is really good at doing parallel evaluation of large array expressions. If your problem isn't solved by any of these, there are other powerful solutions like IPython, Parallel Python and even multiprocessing from the standard library

If you need even more performance, cython has some support for semi-automated parallelization, and if all else fails drop down to C and use OpenMP or whatever else you like.

So while concurrency is a problem in python, numeric parallelism is an area where many good solutions exist.
Ricette rustici con pancetta e mozzarella, antipasti sfiziosi
Erm no. Money is a token in value exchange transactions. If a government rides on throwing in tokens not backed up by value in the economy, that is not going to last.
Of course is not similar, but the point is only because it is legal and the goverment can do it, does not make it right.
> Consider if you've been living the high life based on borrowed money. At some point, you decide to go on an "austerity" program, and cut back the spending so you are no longer borrowing.

I'm confused about your scenario. Are you continually borrowing, or are you living off a finite quantity of borrowed money? Does an income exist, and if so, where does it come from? Who are you borrowing from, and why did they give it to you in the first place and in what form do they expect it back? Are you obligated towards anyone besides yourself, such as children, aside from the established debt?
BBC Micro on an FPGA
You can actually do all of those things with cash.

It's not conventional, but people do make all of those purchases with cash.
Second highest in the world? NZ is 190/100k, a rate that puts it in 71st position: http://en.wikipedia.org/wiki/List_of_countries_by_incarcerat...
C'mon guys... The kid is not ill. He is angry and pissed of at the world. He has established different society norms for himself and his behaviour is off limits, but he is still in control of his brain and his body. And he understands what he's doing. He is not brain damaged. Don't treat him as one, cuz it would piss me off to.
Wow. I hadn't come accross this blog before. It has a fantastic wealth of content, all relevant to my interests. Very impressed.
Something that many of these answers fail to address is that a 256-bit key isn't big enough, if you can do 2^128 computations.

This is due to the probability of key collision. See http://en.wikipedia.org/wiki/Birthday_attack

Not that I'm saying 2^128 calculations isn't a lot, but compared to 2^256, it's a tiny speck.
This seems like an awfully - and very academic - strange question. "Have there been controlled studies to see if this thing that millions of developers have personally experienced value from actually has value?"

No, I rather suspect not. What's more curious is the implied suggestion that VC has no value if it has not been empirically proven through formal scientific study.

I also suspect that you will find no papers on the effectiveness of building a house using a hammer and nails and making it up as you go versus using a nailgun and blueprints, but as man has known since he first discovered fire, better tools pretty much always mean faster and higher-quality results.
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?

3d printing in our home via cubify.com runs a customer $1300, but no doubt in time that cost will decrease. I say in the next couple of years prices for home 3d printers will be consumer friendly.

On a side note, I think 3D printing is going to hurt many industries and possibly be used nefariously (creating a weapon and or other illegal vices).
Why is this downvoted? The statement is correct. You can argue if it's the main problem, but it's certainly a problem. The countries in the Euro zone cannot print their own money at will.
Can't the same be said about any economic school of thought? Take, for example, this thread I found on Quora regarding austrian economics: http://www.quora.com/Austrian-School-Economics/Is-Austrian-e...
Simple: new() is for memory allocation, make() is for the more complex initialization of reference types.
http://research.swtch.com/godata
http://golang.org/doc/go_faq.html#references

Why can't you add methods to types outside of your package boundaries? Because Go aims for clean, comprehensible, robust boundaries between components: http://talks.golang.org/2012/splash.article
Without a vcs you don't have a development process.

It stores the code. It stores all versions of the code. On a rudimentary level, when you break something, you still have the good version.

On a more sophisticated level, with a proper version control system and branching strategy you can -

Have multiple developers working on the same codebase and most changes automatically merged in (though obviously you need some human oversight)

Support multiple different releases of a product from the same tree.

Roll forward patches and fixes from one version to the next, again largely automatically.

...

Maybe some of these are less important for things you run on your own servers rather than stuff that gets deployed at customer sites, but to me it's difficult to imagine working without it.
So... your reasoning is... that a skyrocketing prison population does indeed reduce crime significantly... and at the same time, gun laws in the US were mostly responsible for the reduction in crime drop?

I mean, you're agreeing with me at the same time you're disagreeing with me, in a way that just doesn't make sense.
Our Presentation: The Company We Plan To Build
Editor(sublime text) for ruby, but IDE for php.
This is link bait. Where is the stored procedure and ORM again? Of course you will be vulnerable if you do the query concatenation yourself!
Precisely the reason I quoted the real world example of Japan rather than go into some pointless argument full of economic jargon. To take the US economy to where it was before 2008 you only need to do one thing . Get housing prices back to their pre bubble highs . The reason being that everything else fed off of the housing bubble. Thing is that those prices were totally unsustainable and unaffordable and so those times arent coming back . Politicians can do their crazy horse dance all year and its still not coming back . In the end as I said in my parent post genuine progress comes through innovation .
Use parameterized queries: http://www.codinghorror.com/blog/2005/04/give-me-parameteriz...
to lay this out more precisely, and I live in Austria, so I have a front row seat on how to use bureaucracy to steer behavior:

you do not simply raise prices to 5000$. no, you gradually boil the water through addition of red tape. selling ammo should not be banned, the drug war shows what happens then. no, it needs to be legal, just amazingly, mind-numbingly complicated. the cost of the process would then be the markup on the sale.

make the IRS, TSA, EPA whichever other three-letter agency you can find go all in and creative on ammo manufacture, sales, distribution. oh boy, the CO2 emissions alone should be fun. and quality standards, only the purest gunpowder should be approved, FDA-style. to protect the shooters of course, misfires are bad in your fight against the government - even the NRA can't deny that.

Call it all the "Make Gun-Owners Safe" act, drop it in front of the republicans, tie some tax decreases to it. Try voting against that one.
Innovations that will change our lives in the next five years
A useful reminder: NewYorker means "from New York", the capital of the financial system, the owner of the private bank that controls the Federal Reserve, and the people who are most interested in printing money ad infinitum so their financial theater does not collapse today(it will but they can delay it kicking the can another day).

Another useful reminder: There is no austerity in Europe or anywhere!! There is not a single country in Europe that spends less that what they have(the definition of austere), all of them have deficits, so there is no such a thing like what the Feds or ECB want you to believe.

All of them are over-indebt, e.g next year Spain will have to give 25% of their taxes for paying interest of the debt they got. They are so in debt that the vicious circle makes impossible to pay the debt as interest rise more than GDP.

Blaming austerity for the problems of over leverage is a good trick on the financial hat, like blaming the bed for the handover.

Deleveraging will happen, debts will not be repaid, savers will lose most of their wealth and social instability will erupt as the system could not be trust. Someone has to pay for the malinvestment done when money was free. This already happened before, it was called the Great Depression.
The end game for 3d printing is assembling things at the molecular level to our design. Kind of how Star Trek had its food fabricators, just have carbon and have the machine rearrage and orient it to make food, add some h2o and other trace molecules, and bang you got a chicken leg. Or some ultra-nutrient-calorie dense superfood.

If you can do that, making a planet is easy. Doesn't even require a printer - just dump a ton of iron, carbon, oxygen, nitrogen, etc into a tight area of space and let them collapse together gravitationally, or just throw it in concentrated orbit around a star so they coalesce.

I almost want to recind my original statement, because the real end game is manipulation of the most discrete components of matter, space, or reality. Right now its fundamental particles but who knows what else we may find. In usability terms though, crafting molecules seems like it would have the most benefit.
They altered US society in some pretty massive ways, altered who controlled the government, and had large and fundamental impact on many people's lives.
Seems like a great blog. I'm trying to get through The Road to Reality by Roger Penrose that's supposedly capable of giving a layman an idea of the math and physics behind modern physics including string theory, but I'm finding Jeremy Kun's treatment of some of the same mathematical concepts using animation and colloquial language to be easier to understand.
1) No email address to be shared beyond a domain. (I can see that some sites partner together and if I register for some newsletter on one site, another site (domain) should not add me in their list, even if both the sites are run by the same company.
2) Email address to which emails are subscribed
3) A single click opt-out
4) Instant Opt-out (many sites say will opt out in XX hours and finally I forget that I unsubscribe, and again I try to unsubscribe.
I used a very similar approach in the mid-ninties to get full root access to all of our high-school's systems (which was technically not even illegal at this time and place). The output file used a simple single-character XOR obfuscation, to make it a little bit less obvious if someone looked at the log file.
Ask HN: How do you organize your time as a Freelancer/Contractor/Consultant?
Hey everyone,

I've been a freelance/contract web developer for the past few years. Technically, I'm very competent, but organizationally I'm a disaster. I'll go for days putting one project off for another, realize another has a looming deadline, drop the others, and repeat - a self-perpetuating cycle of anxiety most of the time. I have a feeling I could be happier and more efficient with a better time management strategy. Do you have any suggestions?
If only you 2 are doing this, this won't affect GDP much.

If everybody is doing this, prices rise aproprietely, and GDP corrected for inflation is still a good indicator.

EDIT: BTW there's a reason people don't generally sell cheap things for billions of $ - you'll both have to pay tax from that sale :)

And even if we assume no inflation - government can now invest these money, fueling economy, so this sale had at least some positive effect on economy.
The lack of study for even the simplest, universally acknowledged principles of software engineering has always troubled me. Proving any non-trivial conjecture (for instance the proposition that version control reduces software cost) should be possible, but the cost of doing so is often prohibitively expensive.

Until the evidence somehow materialises I think the best approach is to accept that software engineering is mostly a craft, not a science. That way we can heed the advice of respected software artisans with a clear conscience - all of which would recommend the use of source control.
I wish I knew more about encryption. Unfortunately it isn't a very accessible area, even if you have a degree in CS you aren't really qualified to even touch the stuff, you need a maths degree at the very least.

Plus every time anyone brings up the subject the answer is always the same: "If you roll your own crypto you're an idiot." Which is not very encouraging. Likely why crypto' libraries are so antiquated and terrible.
Show HN: Do you know your Vocabulary Coverage Ratio?
The government will cheerfully collect $300 million in taxes from each of you.
Top 20 when I remove the StumbleUpon metric:

[lifx.co] => 97.942429714246
[kickfolio.com] => 89.598662998513
[shebusiness.com] => 84.413930181291
[netcomber.com] => 83.758506325309
[readershop.com.au] => 71.445369888231
[nameterrific.com] => 71.375673413085
[bugcrowd.com] => 71.328010040444
[shop2.com] => 71.228983543186
[serviceseeking.com.au] => 68.308687033257
[righttoknow.org.au] => 67.654116949018
[theiconic.com.au] => 67.28062258823
[kogan.com] => 67.173702738231
[retailmenot.com] => 65.963267045507
[startlocal.com.au] => 65.922497275844
[social-medicine.org] => 65.833298346458
[kaggle.com] => 65.616138632997
[manageflitter.com] => 65.551656760889
[freelancer.com] => 65.455719109403
[harris.com] => 65.150296026706
[freelanceswitch.com] => 64.742373047548

Doesn't feel like a substantial shift (good).
Do you have any short-term plans for Google Plus?
Its very strange to listen to this kind of certain, idealistic tone when relating to things that we just don't have certain knowledge about.

In macroeconomics, the relationship between fiscal spending and unemployment/economic output is unknown. We've been arguing about it for about a hundred years and we are not really any closer and answer. It may be that an economy is too complex to explain the way we've been trying. It would be like trying to predict the effect of releasing magpies on the squirrel population of a forrest.

A weirder example is nutrition, diets. We have different schools: evolutionists / paleo, low fat, atkins/low carb, weight watchers, all about - calories, all about growth hormones... They all have mountains of anecdote and a powerful conviction that they are right and everyone else is a blind, stubborn idiot. These Atkins idiots don't believe in thermodynamics. Calorie counters think we have furnaces for stomaches. Neither believe in evolution.

So.. obviously we don't really know why this generation got so fat or what individuals should be doing to reverse it. Naturally that doesn't stop people from being incredibly confident that their theory is undeniably true. Tellingly, they are mostly associated with charismatic motivators more than scientists or experiments.

This thread is back to back proof-by-contrived-metaphor.
You can do all of that with a cashiers check, which you can buy with cash.
I don't know about this, why would the number of incidents go up if teachers have weapons? Especially if they are trained to handle situations.

Another post on HN talks about a school district in Texas allowing teachers to carry firearms, but it takes a lot of training in both using the gun and hostile situations. This is a recent thing, so it's still undecided if it will help, but I feel like it helps to have the teachers trained.

http://www.foxnews.com/story/0,2933,404721,00.html
One reason for extra large keys is for headroom in case of partial breakage.

Usually when a cipher is broken, they don't break it fully, but rather reduce the keyspace. By making your starting keyspace even larger you make even a broken cypher secure (up to a point).
Yes. They sold to whaleshark.
> We'll make sure that is clear.

There is no update on the web site (https://openphoto.me/signup) yet.
This a very good explaination of why 256 bits is enough against a brute force attack. The goal of breaking cryptographic systems is of course not brute force, but to reduce the actual key space you have to search. This is frequently measured in how many redundant bits you can shave off. So for AES, we might find in the future that 256 bits isn't enough after all.
Ah. What you're saying is that the money will have less value. I got distracted by your weird usage of imaginariness. So this isn't about money; it's about value.

Yes, austerity results in lowering the value in the economy, which in turn makes it difficult to back money with said lack of value.
Except when you reach the "tower", it starts spitting alerts and the only way out is to close Firefox (actually kill it). Meh :(

Also, I see the handler for collisions for the enemies, but where does it say that you can jump on them with no problem? Is that behaviour set somewhere explicitly?
Mind-controlled prosthetic limb gets civilian seal of approval
The interest payments on UK debt is £43bn. That money is going to bankers at the moment, but it should be going to the people. Sooner or later we've got to pay down the debt. The longer we leave it, the more the poor will suffer. Look at Greece, it's far worse to be in poverty in Greece than the UK, and that's where we're heading if we don't take action now.
The Pmarca Guide to Startups, part 4: The only thing that matters
http://web.archive.org/web/20070701074943/http://blog.pmarca...
Not sure why you were down voted since you're spot on.
Bingo.

I'm a teacher and I like students who ask me to re-explain or re-present a step in an argument. In fact, I use techniques designed to find out how much my students know and 'how they know it'. I teach fairly basic Maths, and different students learn the basics in different ways.

I'd like a student who could articulate which step in a complex argument is the issue even more! I usually ask follow up questions to find out where the issue is without putting the questioner on the spot.
I have the feeling people suppose they're in some sort of armored vehicle when browsing the web, when in reality it's an open-top Jeep. It's too bad the general public has no concept of how vulnerable their identity is on the web.