skysight-inc/HackerNews huggingface dataset:
This doesn't surprise me, but take a look at the absolute numbers. In ANSI C on whatever processor he used, you can make over a billion function calls per second. Even in Python, you can do about 2 million.

Take a look at a profile of your program sometime. The vast majority of your functions get called maybe 20 times or less, with many of them being called only once (at startup) or once per operation (eg. setting up a request). Then there are obvious hot spots, eg. in many profiles I've run malloc() is by far the biggest single offender.

The Python strategy is to use Python as a scripting & glue language, and drop down into C for the critical parts of your program. You can get really far just writing initialization code in Python, keeping your data structures in C, and writing the inner loop of your algorithm or the critical part of your request processing in C.
There's this too:
https://github.com/nickjj/gemshine

It will recursively check a directory for gemfiles and then compare your installed version against the latest version.

It uses bundle outdated under the hood.
In fact, professional heavyweight boxers usually develop parkinson's whereas that's virtually a nonexistent problem in welterweight and lower.
> Carrier's hypothesis is interesting and well argued, but only time will tell if it stands up to further scrutiny.

I have experience of martial arts, on and off, for fifteen years. A few months ago I was having a go on a punch bag, which weighed over 100 pounds. The elbow strikes I was swinging at it would make it rise about 4 to 5 feet in the air, almost above the fulcrum. I was afraid that I might rip the rope it was attached to.

If I were to elbow this hypothesis it would never stand up again, and unlike my fist it wouldn't break.
In the future I imagine this will be the case, and official versions will be indicated by a published MD5 hash, etc. As for why it hasn't happened already . . . why does the web still run on JavaScript, a language that was obsolete the day it was designed two decades ago? Even within the tech industry, tooling moves at a glacial pace.

We'll get court opinions stored in version control when we get a generation of judges that grew up with word processors with integrated version control. As it stands, version control isn't even well-implemented in mainstream word processors.
Anti-Tesla sentiment and the death of optimism
I think HP has a bigger vision here. They aren't looking to build a new car, only this car has electric batteries, they want to build a plane. They announced two OS projects: a modified version of Linux that runs on this new machine, and an entirely new operating system based on fundamentally different assumptions. They only care about Linux as a stopgap, because it allows people to start using this machine while they come up with something better.
I have never heard of this hoster. Anyone familiar?
15 years in service?
Hamburger and mobile icons: the delicious way?
Show HN: Record all your web browsing with fully searchable screenshots
The question is, what is cheaper & more efficient to sell all seized assets, not one particular class. Global optimization.
Some things are undefined behaviour[1]... so you really don't want to want to do them (i.e. you can do them inside `unsafe`, but the compiler optimises/reasons assuming they never happen: if they occur at all, you could have an arbitrarily broken program).

[1]: http://doc.rust-lang.org/master/rust.html#behavior-considere...
It's not a great look for the BitCoin market if you can buy in bulk at 75%.
if you have $17 million to spend, is $200k that big of a deal?
It would be funnier if the bitcoin exchanges blocked those blockchains as having been permanently compromised.

It would prevent the feds from having an incentive to seize bitcoins.
I think that in this case where the persons mostly agree to disagree, both solutions are usable. You could bicker endlessly about superiority of one over another, but seems like picking either one is not massive mistake.
You don't and neither does evolution.

All that the DNA knows is that it got into the next generation and it will keep doing whatever it was doing before plus or minus a few small random mutations.
Jack Dorsey is not in charge of product at Twitter.
Could someone explain the logic behind the price drop? Is that related to the fact that those 30k will be sold below the standard price? For some reason it seems counter-intuitive for me, since the money connected to those coins have been already paid once (whether for mining them or via exchange). So in practice it's more like they've been actually paid for ~twice now, so the effect "should" be opposite.
Hi, I think the point is that the graphs need Y-axis labels to be meaningful.
All code in mozilla/rust gets a code review before landing, so there's always at least 2 sets of eyes on it.
My mistake. I'm not sure how or why this got through the filter.
You're comparing signups to active users. Very different.
Would it be considered as "exporting the algorithm" if I was to view it from a location outside of US? Assuming here is that the photo is hosted in the US.
That's a 90 minute commute by car, which is not very practical for most people. However, it is usually a better idea to buy a house across the Bay, where it is significantly cheaper, and commute the 15-30 minutes to work in SF or wherever every day.
Not really. Seized properties often sell for less than half of the market value... doesn't mean the property is worth half now... it means the government can't be bothered to take on the responsibility of selling the property at full retail --

ie. they just want to get rid of the assets and move on.
That's completely normal - it's just a way of ensuring the bidder is making a serious offer and can follow through with it. Same thing if you buy a house, when you put in your offer you need to write a check for 'earnest money' (anywhere from a few thousand to 5% of the list price) to show you mean business.
Soccer, Made in America
I'm also fan of Django Debug Toolbar, enough so that I adopted the package in Debian. Unfortunately, there isn't an active upstream maintainer right now. As the README file says:

"There's no active maintainer at this time. You're welcome to file issues and pull requests but you may receive no answer until a new maintainer steps up."
> It bothers me that they're selling off his assets when, last I heard at least (and please correct me if I'm wrong), he hadn't even gone to trial yet.

AFAIK, the bitcoins at issue were those forfeited in a default judgement because no one, including Ulbricht, claimed ownership of them. The coins that Ulbricht did claim ownership of (that were on computer hardware traced to him separate from the Silk Road servers) were not forfeited at that time (and have not been yet, AFAIK.)

See the January partial judgement by default and forfeiture order: http://www.justice.gov/usao/nys/pressreleases/January14/Silk...
I have no issues whatsoever with the width/layout issues, but the expires links... yes.
People had priced in the freeze on these coins, which might have continued indefinitely. The price drop is out of proportion ot the actual (re)inflationary effect of these bitcoins, but people are irrational.
HIP - still have the T-shirt. I was the one on the wooden shoes, with the network sniffer running on a laptop in my tent during the whole thing :-)
How To Throw a Punch Correctly
Name #663399 “Becca Purple” in CSS4 Color?
Doesn't work here either. Chrome, Mac OS Mavericks, Palo Alto.
Ask HN: Climbing Category Rank
Hey Guys,
So I'm currently working on an app which is scheduled to be submitted to Apple in August and am trying figure out whether or not it's worth it to invest in ASO, ad budget management, and product iteration through a third party. I've been researching various companies such as mobileaction.co, appclover.com, and appnique.com but am on the fence on whether or not they are worth it. Have/would any of you entrepreneurs/developers use any of these sites for your ASO, ad budget, and product iteration needs?? Thoughts??
How to turn a paywall into a cash windfall
> It would prevent the feds from having an incentive to seize bitcoins.

No it wouldn't. Law enforcement seizes to deprive criminals of gain from illicit activities, not to make a profit. They sell because they can.

It also wouldn't be funny. The US Marshall's service is doing what it is supposed to. If you have problems with federal law enforcement try a country that lacks a professional police force.
I'm not sure one could possibly argue that this is morally or ethically "right". Legally it's apparently a-ok though.

These coins were technically owned by all the people with accounts on the Silk Road and were not necessarily going to be used for illegal transactions. For all we know this is basically government stolen money from some guy who wanted to buy a sandwich with Bitcoin just for the laughs and to say he did.
They fall out automatically from move semantics, a reference count only occurs on an explicit clone call:

fn just_a_ref(x: &T) { ... }
fn rc_by_val(x: Rc<T>) { ... }
fn rc_by_ref(x: &Rc<T>) { ... }

let some_rc_pointer: Rc<T> = ...;

just_a_ref(&*some_rc_pointer); // no ref counting
rc_by_ref(&some_rc_pointer); // no ref counting

rc_by_val(some_rc_pointer.clone()); // ref count incremented

// last use of a value (statically guaranteed that
// some_rc_pointer is never used again):
rc_by_val(some_rc_pointer); // no ref counting
Can you explain to me the issue with it being too wide?

I may not be understanding it, because I just maximized the window and I don't see any issue, really.
LNG is cooled and compressed to turn it from gas to liquid, and like the bulk cryogenic liquified "fixed gases",
it is the cryogenic storage temperature which maintains the liquid state, not the pressure under which it is stored.

This is also true for liquid nitrogen, liquid oxygen, liquid argon & liquid helium.

At ambient temperatures the vapor pressures of these fixed gases are too high for the liquid to be contained by
conventional pressure cylinders having tightly shut valves. Instead they are stored cryogenically in highly insulated dewars under low pressures of 35 to 100psi
which vent pressures above that to the atmosphere continuously as the liquid slowly evaporates and maintains the reduced temperature of the remaining bulk by self-refrigeration.

That's why these tanks hiss as if they are leaking from the time you have one delivered until the liquid is fully evaporated whether you use it or not.

Carbon dioxide is a different fixed gas since it only has a vapor pressure less than 1000psi at room temperature.
So it is available in regular tightly shut welding-style tanks containing 50pounds of liquid at room temperature,
or it can be provided as a cryogenic liquid in low-pressure vented dewars like the LN2.

Liquid (anhydrous) ammonia has a vapor pressure less than 1800psi so it can be stored in a tightly shut
pressure cylinder itself, stainless steel DOT cylinders are commonly used for lab samples.
This is at room temperature, so it is not necessary to be handled cryogenically in order to transport or store ammonia, unlike LNG.
As mentioned elsewhere, you wouldn't want to vent ammonia anyway.
Congrats guys, this looks pretty cool!
ah, it's a mobile issue. I strictly use a desktop for HN and was confused about why people were complaining.
A dupe of https://news.ycombinator.com/item?id=7885177.

Please don't editorialize titles, as the HN guidelines ask.
but it does show that bitcoins are NOT considered the same thing as cash. You would not see the case where JPY or GBP or EUR would be sold off at this level of discount...
the contract was drawn up by the leadership that was elected by the AFM, was it not? Thats kind of how it works.

And noncompetes are here to stay since most people refuse to reject them. If enough people at a given company got together and formed, oh I dunno, a UNION, and agreed not to sign that shit it would probably go away quickly.
> Silk Road is less obvious, but forfeiture and sale of drug dealers' assets is almost standard.

My understanding is that those assets cannot be liquified (at the goverment's profit!) until after the trial takes place and the defendant is convicted.

Otherwise, what happens if the government declares you to be a drug dealer, seizes all your assets and sells them before you're tried, and then you end up being acquitted?
It's possible they're trying to drive the price down.
I think because you wrote:

...that app will then act just like any other app. It's pretty neat
Doubt it, but I would love for it to happen. I see this as criminal theft by the USMS.
As I understand it they're the best animal model for many upper respiratory infections, including influenza.

Ideally they only get the sniffles, but with highly lethal strains ... I once knew a ferret owner, they're wonderful pets.
The price has tanked today as a result of this. http://cryptowat.ch/btce/btcusd/1hr/

Market started going crazy earlier today when DPR's seized coins started to move. https://blockchain.info/address/1FfmbHfnpaZjKFvyi1okTjJJusN4... The downtrend is only accelerating.
From a familiarity point of view so do I but progress in operating systems and languages hasn't moved on much for decades. Linux is the pragmatic solution for now and for some time to come but if my kids' kids are still using vim on a unix-like system to create software in a c-like language for an Intel compatible CPU architecture I am happy to entertain the possibility that we may have fucked up somewhere.

We badly need a Xerox Parc again doing stuff because they can and not because they must. So much technology came out of places like that and Bell Labs and we seem to have lost that.
I find it hilarious that someone had to explain this.
The entire government has gone rogue against it's own citizens. Quite disgusting to watch.
Very good point Spoom. I wonder which is worse: adversaries or corrupt organizations, or corrupt election officials / a tyrannic government.

I think it depends on the ability you have to defend yourself against either, either as an individual or as a society.
Thank you. That dramatically elucidates the issue for me.
Is scientific collaboration broken?
That's an interesting understanding of how currency works. There is no currency connected to bitcoin. There is an exchange rate. Someone out there willing to give you X dollars for Y bitcoins. (Consider the concept of X dollars for Y barrels of gas, or Z oz of gold).

Money is used multiple times. The dollar you spend at the store is then split up and spent again, and again, and again. So the value of the whole currency is what is important, how much buying power the currency you have is based on how many dollars there are, what they can be spent for, how often they are spent, etc. By offering X dollars for Y bitcoins, what people really mean is: offering x% of all the dollars for y% of all the bitcoins.

This sale adds more bitcoins (because portions of the markets believed them unrecoverable, and they haven't been in circulation for a while), so Y bitcoins is now a smaller percentage of the whole buying power available for bitcoins, which means they are also worth less dollars. Similar effects are seen in fiat currency (like dollars) when more money is printed, it affects the money supply, and allows the government a modicum of control on inflation (when used correctly) but also can let the government to let inflation get out of control (re: most cases of Hyperinflation[1]).

The simpler explanation is simply: Because the supply of bitcoins went up, with a constant demand of bitcoins, the value goes down because more people are trying to sell them, and the price goes down due to competition etc (e.g. basic supply and demand).

[1] http://en.wikipedia.org/wiki/Hyperinflation
There is no logic. Searching for logic behind bitcoin's price is a fool's errand. You'll trick yourself into believing things that aren't true, because the price of bitcoin is determined by a small number of large players. Those large players enter or exit the market for any reason they feel like. It's gambling, plain and simple. News announcements serve as a trigger for the gamblers to initiate gambles (exit/enter the market).

Until bitcoin achieves a critical mass among both consumers and merchants, searching for reasons for a price drop or jump may as well be numerology.

The trouble with opinions about the price of bitcoin is that they're very hard to disprove, because no one is privy to the information that's causing the price fluctuations except the people causing the price fluctuations. But remember, that's my point: you won't ever know why the price rises or falls. It's beyond your knowledge, unless your friends include those who are actually moving the price.

Until the price of bitcoin is determined by more than a couple hundred people, you simply cannot reason about its price in any meaningful way. Even talking about "downward price pressure due to mining costs" is mistaken at this point. The price of bitcoin is a function of the whims of those couple hundred people.
I sometimes think even most biologists don't understand how evolution works. Especially when I read about people taking the idea of spandrels seriously.

Legs didn't evolve "for" walking, ancestors with leg like appendages survived better than those who didn't have them in the Savannah. It didn't matter if they did that by walking, swimming, running or kicking threats and opportunities as they came along.

The same is true of fists and skulls. They didn't evolve for punching, but any ancestor who threw a punch - even if by accident - and didn't have their hand broken, and anyone who received one and didn't have their skull broken had a better chance of survival that those who did.

The only question is if this happened often enough to warrant the extra resources that went into strengthening the bones of the hands and skull compared to using those resources into some other area of the body.
Surely this creates precedent of US government recognised legitimacy? While it might hurt the markets in the short run, i reckon it'll overall help bitcoin as a currency in the long term.
> If you have problem with federal law enforcement try a country that lacks a professional police force.

Genius statements like these are why I read HN!
lmao, "use-of-space conflict"
It's the cube square law in action. Elephants can seriously injure themselves from falling over. If I fall over I get a sore butt. Yet if you were to scale me to the kind of weight an elephant has, I'd have a far larger fall, so obviously scale has a real effect.

I think the thing is, NFL running backs are trained to survive that kind of abuse.
1osamasjnHLJ1jwuXq5dZxQ7UZCgHe66N
I believe Barkeley actually thinks SCT is a third type of ADHD, not necessarily a replacement for the inattentive type
@borski - interesting; I can confirm that we did get your e-mail and we'll take a look at what's going on in our backend that might be causing the error message.
Google To Launch Health Service 'Google Fit' At Developers Conference
http://en.wikipedia.org/wiki/Supply_and_demand

Increasing supply always reduces the market price.
It does nothing of the sort. All this does is confirm that Bitcoin is property that can be sold which is exactly what the government has said previously.
It's basically a statement of intent, and there's no reason to believe they don't mean what they say. Hopefully this leads to progressed innovation.
I rarely think to drink water, because I rarely feel thirsty. When I do, I usually drink coffee.

It took a trip to the doctor to find out I was chronically dehydrated. I used to only drink 1 - 3 glasses of water a day.
Getting over regret – Have.Tips
You should already be providing one-click unlist links in every mail you send out. That is pretty much the law in some european countries now.
> etcd does provide linearizability with regard to the
> logical clock index.

https://twitter.com/aphyr/status/477210387796865024

> No, it really doesn't. Reads are not monotonic w.r.t
> indexes.
The government doesn't see Bitcoin as money. Instead it's just selling seized property like it always does.
There's the design decision, and then there's the incorrect documentation that says reads with "consistent=true" are guaranteed to return the latest value.

https://github.com/coreos/etcd/blob/master/Documentation/api...
That's a sword that cuts both ways. If you infrastructure for that kind of filtering became pervasive, you can be sure that government would be dictating which coins (transaction outputs) are compromised and which are clean.

Luckily a fork of Bitcoin that included these filter mechanism is unlikely to succeed. Let's keep law enforcement on a separate layer, we didn't put it into TCP either.
I am not as knowledgeable on these topics as Colin. But in this weird specific set of cases, I think my take is also closer to the conventional wisdom among cryptographic engineers; if you got a panel of them to stand in for me, I think their comment would sound close to mine.
Or at least they claim to.
It's not, but it wasn't the point of the blog post to be a legally binding document, the point was to put the industry on notice that Tesla's patents are open and that they want to collaborate.
>But there is little mention of creativity, empathy or emotion - aren't these the types of dynamic, responsive cognitive abilities that are uniquely human?

I wouldn't say "uniquely human", other animals show signs of all of those.
Still, they're not really represented in machines. I don't believe that machines are incapable of it, or that people are trying to avoid implementing it; more that the basics still need improving before we need to worry about it.

On the other hand, it's possible that people are working on AI from the wrong angle, and creativity, empathy, and emotion are needed at a much lower level and would make imparting knowledge to machines easier.
Ask HN: What do you think of Leanpub, Softcover, etc?
I'm working on a short technical book at the moment and I'm having a hard time picking the perfect approach to take.

Leanpub is one of the easiest to get started with.

Softcover provides a better interface for readers (and a lot of nifty features specifically for technical books).

But I'm also half-tempted to just go solo, publish the thing online for free and sell access to the PDF/screencasts via Gumroad.

Would love to hear people's opinions about the best way to go both in terms of the best way of writing, the best experience for readers, and also financial results — does being on Leanpub actually put you in front of a sizeable, willing-to-buy audience? Or do you still need to still give your book that initial marketing push?

Thanks.

:)
A key generated from a username/passphrase will work fine. Generally you'd use a key derivation function (eg PBKDF2) which turns your auth information into a 32-byte (256 bit) cryptographic "master key." Assuming you can remember your passphrase, then you can easily re-generate your key when you "log in" from any machine.
The head of HP Labs explained this in his talk. He said it is called "the machine" because 1) they are researchers, not marketing people, and 2) they started thinking of it as not just another server, but a whole new architecture that scales from phones to data centers (as in, THE machine, the only one you need).
But the supply hasn't increased. These bitcoins existed prior to the offer of sale. The only thing that increased was the free float.
Isn't this a bit presumptuous?

Ross William Ulbricht hasn't yet been convicted of anything. I know that they aren't selling his personal bitcoins, but in the (highly unlikely) event that he is found innocent, wouldn't that mean that the Silk Road assets need to be returned to him? How then can they sell them now?