skysight-inc/HackerNews huggingface dataset:
Anyone who is looking at mathematicians, cryptographers, or security experts is almost certainly looking in the wrong place. Everything about Bitcoin suggests the work of a cryptography amateur/enthusiast, not an expert. Perhaps a talented amateur, maybe a very smart amateur, but you are not going to find the creator of Bitcoin in a research lab (at least not circa 2008; maybe the reason he vanished off the face of the Earth was the beginning of a grad school career, which ate into his time).

Really though, it makes no difference who the creator of Bitcoin is, nor why he created it. All the matters is whether it lives up to its promises. It is secure against attacks? Do the economics make sense? Those are the questions that should be answered.
Exactly. I really can't see a full-blown SMS system taking less time to integrate than TOTP.
I see where you're going with taking the toy into different environments to produce varied challenges. Controlling multiple vehicles at once could be interesting- I'm reminded of tool-assisted speedruns in which a single set of gamepad inputs are used to complete different games simultaneously. You could create obstacle courses where the same program will help all the robots get out.

From the perspective of learning about abstraction and code reuse, I think having a single function definition that can only be four instructions long is very limiting. If you had more (even just a second one) you'd have many more ways of combining them together- they could be chained, they could call one another, etc- and thus more ways to try breaking down problems. Breaking tasks down into smaller subtasks is, in my opinion, one of the most fundamental concepts in programming, and your toy can teach this idea.

From a totally different angle, have you thought about adding a crayon/marker mount to the car so that kids can lay out a big piece of paper and then have a visual record of their trial-and-error progress? Thinking about the toy as a sort of creative tool, if the kids had some ability to turn the overall program into a repetitive loop rather than just a sequence you could do some neat spyrograph style stuff. Maybe add a toggle switch to enable that?
I wonder what his opinion about Functional Programming is.
As a matter of fact, I'm not purporting that the OP has done so either. :)
My interview at Amazon (where I am currently) fit those requirements.

* It lasted 3 hours, not all day. They suggested business casual dress.

* No trick questions or trivia puzzles. Just coding on whiteboard.

* The interviewers had clearly looked at the work I'd been doing (no one asked "what do you do currently," etc.

* I had an offer, with numbers, about 50 minutes after the interview.

* I countered, they took less than 24 hours to respond and accept.

It was really enjoyable.
How to keep up to date on Front-End Technologies - The Recipe
Here are the following problems. Firstly, the sheer scale. One of the major producers makes 150 million gallons a year. Or half a million gallon a day, or roughly an olympic sized swimming pool. Or... lets go all out.

Half a million gallons is roughly 2 million liters, or 2 million kilograms of water. Assume air temperature of 20 degrees. To boil off the water, its going to take 4 kilojoules per kilogram per degree celcius.... so thats 640 GJ already. Ignore heat of vaporization.

Incident solar radiation at like ... 1000W per m^2. 12 hours -> 43200 seconds per day, so 1 m^2 receives 44MJ is a day... which means you need about 15000m^2 of surface area to evaporate off a day's worth of production in a day. Optimistically.
I tried it, but I didn't see "add telephone" in the hangout window. I also had to use my gmail address to start a hangout with myself.
> Both DPR and Satoshi have technical/cryptographic skillsets: they use TOR, PGP, etc.

That's like saying "both my grandmother and Michael Schumacher have automobile engineering backgrounds: They drive a car."

Using cryptography and understanding it are two veeeeeery different things. Understanding cryptography and successfully creating/implementing your own protocol are even differenter.
All this does is help challenge the validity of the Drake Equation
Still, the difference is staggeringly: staring at a lightbulb vs a surface.
Calling me names won't change anything, my argument still stands.
The FBI is asking for backdoors on the client side of secure communication systems. Did you think they forgot about the 90s?

The difference today is this: lots of people are buying restricted computers (tablets, smartphones, even some laptops), and it would not be hard for the government to push backdoors into software distributed via the "app store model." This time there is actually a chance of the Justice Department getting their way.
To be fair he's posting about it on an internet forum so he probably _could_ care less.
sorry if this is obvious - Is this useable in the browser? I couldn't find mention of this anywhere, But everything that is inolved (typed arrays) seem like they should work client side.

thx.
Which of those legitimate strategies are not just common sense? Honest question.
How much should your startup spend?
You mean the iButton http://www.maximintegrated.com/products/ibutton/
Really, it depends on whether you're using the English definition of 'violence' or the libertarian definition of the word.
Why not get a Hetzner box or something?

http://www.hetzner.de/en/hosting/produkte_rootserver/ex4

It's $60 for 10 TB/mo.
Jif Peanut Butter Weighs In on GIF Pronunciation Debate
And if you still Kant see how this would be a bad thing, look up the Categorical Imperative sometime:

"Act only according to that maxim whereby you can, at the same time, will that it should become a universal law."

https://en.wikipedia.org/wiki/Categorical_imperative
Google Acquires Makani Power And Its Airborne Wind Turbines
Best comment of the day.

JIF is peanut butter. GIF is what you put on the internet.
I don't know about others, but I don't know I like this change over previous Google Talk implementation receiving a phone call.

Being able to receive a call on Hangouts is great, but having a somewhat underpowered machine, it takes me about 10 to 15 seconds loading up full Hangouts session. (presuming, with everything including video chat components) By the time the session is loaded, the call is often already sent to voice mail, or caller would have given up on me.

I think Hangout is a great system in the situation where you are actually setting up to have one -- but not so great for responding to unexpected calls.

It wouldn't be so bad if responding to the call would actually answer a call immediately, but the way it is currently implemented, I don't think it's usable...
I don't Parse well enough to know if the analogy holds, but yeah, I agree that Backflip looks really interesting: Click a button, sync stuff to my local disk, hack at the local files, See the changes automatically at a temporary url.
Duplicating house keys using a 3D Printer
Yep! It should work in both settings. Just use browserify and you can stick it in your project.
I actually feel much worse with the fact that large corporations with no oversight, who knows what kind of security, no counter-intelligence and little if any background checks on employees, have a front-door entrance to my data. Think about this: how hard would it be for a crime organization to put some Google employees on their payroll and use them to get personal information on just about anyone. How hard would it be for them to threaten a Google employee to provide them with information? So now the government wants in? Join the party.

I'd actually be happy, though, if the government put in place some/more regulation on companies that collect so much personal data.
This is not uncommon in crypto, Truecrypt devs are anonymous as well: "The developers of TrueCrypt have been only anonymously referred to on the site as “The TrueCrypt Foundation” since 2010,[44] though there are potentially good reasons related to privacy why they might have chosen to remain thus." http://en.wikipedia.org/wiki/Truecrypt
Apple has always made 30%. They were the ones to start that model.

Publishers are actually about relationships, not dead trees. They can get your book to the customer, which is where the value is. From the consumer point, you only care about the producer, but the producer cares about the publisher a lot more than the customer.
New Google+ automatic photo tagging
What about Lee Iaccoca? and Sergio Marchionne?

I thought they fully repaid the government too. Maybe I'm confused?
Try this:

http://www.korokithakis.net/posts/example-provisioning-and-d...

You can go from fresh installation to complete Django stack in one command.
I suspect that the above commenter is skeptical about carbon emissions as a legitimate externality. There are also plenty of people who do not think we should be able to address externalities through legislation.

It is strange though because it is often the people who acknowledge or advocate the use market approaches who later complain about them when they are put in practice.
Edmond Dantes
I didn't say they're perfect or anywhere near perfection. I could go on at length about the myriad things that annoy me: Finder, HFS, software update crammed in the App Store, iOS lockdown.

All I did say is that they absolutely do _care_ about what's below the surface. Parts that a fraction of a fraction of folks will ever see are given loving attention far beyond the norm. Do most or any other manufacturers color coordinate battery warning labels, PCBs, etc., down to the cm^2 headphone jack?
I don't actually disagree with you at all.

What I would say is this:

85% of the time, things are done in a certain way for a reason; people have discovered through experience that a particular method is best.

As someone "new" to a situation (regardless of age), deference to the established norms is a requirement for success, namely because you are too ignorant to identify that 15%. I don't care how brilliant you are (or think you are) wisdom often only comes with experience, and experience takes time.

Getting back to sweeping generalizations - this is something I think Millennials are particularly poor with. While for most other generations, the ability to think outside of the box is rare and prized, Millennials seem to forget that someone a lot smarter than them established the box in the first place, likely for a very good reason.

We establish things like decorum - as mundane and limiting as it may seem to you - because experience has shown that a lack of expected decorum can result in conveying a poor impression where such a conveyance is not intended.
If the Attorney General is fighting for "the little guy", then I have no problem if he gains political capital while doing so.

The larger point is that the trolls are clearly trying to find companies that are unlikely to fight back, even if they sometimes miss. Yes, that kind of behavior does not mean their must be fraud, but it's an indicator.
AAPL makes $3~4.

Publishers are who "make" the writers in the first place (unfortunately) by shouldering the distribution, marketing, etc. Without them (or without the author being e-famous(tm) already), an author can't hope to sustain himself through writing.

Maybe things would change if we were more willing to "pay" for discovering content creators through our own time investment, but this is doubtful.
It's untraceable until he starts using it. Not bitcoin in general, but Satoshi's stash specificially.
Using Feedly, two main issues:

No direct link to more items from source
Android app limits my subscription list which is well over a hundred sources.

Everything else seems to work and the extension works fine on Chromebook.
I certainly didn't mean to imply that only younger people do.

The overall point I was making is that the world is changing, and it's fair to point out that it's young people that are the primary agents of that change. Hell, people younger than you built facebook. I don't think my generalization was over-reaching.
Hell, I do significant amounts of server/Linux work, and still don't understand Docker (it doesn't help that I haven't been able to run it because btrfs).

I understand that it's a lightweigth container, but what's the advantage? Aren't images still 2+ GB? Do I have to version the entire FS instead of 2-3 config files? Can I freeze it? Can I push it to a server? How long will that take? Can I use the same image on develop, staging and production? How does it know which is which?

Etc etc.
For those who are skeptical about these conspiracy theories, I've tried to explain why large vendors accede in a previous post and got great skeptical questions: https://news.ycombinator.com/item?id=5706695

tl;dr -- Most large public services you use (Skype, Exchange, likely Gmail, etc) have backdoors.

Large vendors believe they have to respond to subpoenas or face public obstruction or co-conspiracy charges. As a result, they place these backdoors to avoid the PR or believe they are required to play by the US govt's rules. They may not be realtime backdoors, and they may require a bunch of processing, but it is possible to read most messages sent through large, popular systems (both voice and text like email, sms, chat). I think everyone is waiting for a major court ruling or congressional bill to clarify what's what.

snippet of previous post to explain the vendor's mentality:

> The govt comes by with a subpoena (secret, classified, or public) and requires Microsoft or the customer company to produce communication records that exist in a form that may be used as evidence. Failure to do so is best contempt of court and worst obstruction of justice. No 5th amendment privilege for other people's crimes [and prior to last year's ruling, it was assumed that passwords (or private keys) could be compelled for any reason in the US, and systems were built with that assumption]. So everyone who chooses to store or process messages makes it so the encryption is reversible and they can honor court requests. Nothing is private as a result.

> There is not yet a way to build a messaging service that has both features [content-aware features like URL detection, spell-checkers, web browsing for dumb clients, targeted ads to fund free services, etc] AND [pure] privacy [in the US].
I agree with "Induction-powered" and "LED-lit" but I think the comma is going too far. Then again I'm a comma minimalist ('though I do like the oxford comma for some reason).
Why the blocksize limit keeps Bitcoin free and decentralized
How to win a negotiation: have all the chips.
I thought the latest consensus was that Satoshi was a group of people working together. It's much more likely than for it to be a single person.

https://en.bitcoin.it/wiki/Satoshi_Nakamoto
Similar to Bitcoin, it seems a completely arbitrary and unremarkable fact that people are talking about. Who cares? This is a timesink for people who have nothing better to do but stare at their Satoshi navel.
It is difficult to get traceable user information at companies like Google. In my experience startups do little or nothing to protect this data. They also would be the ones likely to put a vulnerable backdoor in a product just to meet some government mandate.
How is that relevant? They don't own the entire network and it wouldn't make them a monopoly natural or otherwise.
It's worth noting that if speculation that they own 1million bitcoins is true, that's almost 5% of the total of 21million that will ever exist. That certainly seems like a good reason not to go public to me.
Writing a blog about it and linking them in skype probably not the best way to do it. Just sayin.
Let's hope nobody makes a Token Ring
Android is not restricted, not yet at least. But I see your point, and it's rather alarming.
Yeah, so what it says is that some of the other publishers should have also held out. By the time it got down to HC it was too late.
Boiling frog. As long as digital freedoms remain unlegislated, government will circumscribe ever-shrinking boundaries with and without the help of industry. It will continue forever until and unless the freedoms are enshrined into law.
Oh, bummer. Looks like their replacement [1] is a cheaper version of S3, but they still charge for download bandwidth.

[1]: http://dreamhost.com/cloud/dreamobjects/
What the fuck are you talking about? They are in it for the money, in the form of taxes. Taxes that are then used for public services.
Untraceable until the robber starts using it too. It is either useless to the robber, or traceable.

If someone steals Satoshi's bitcoins and leaves him in a ditch (so that he can't tell people they were stolen), as soon as that somebody starts spending them other people are going to start looking for him (mistaking the thief for Satoshi, at least until they connect an identity to the coins.)

However this does not afford you any protection from robbers that believe, mistakenly or otherwise, that they can clean the coins in a mixer.
If all you have to solve for is 1 and 2 then I think your going about this the wrong way.

You can do both with appliances - Firewall from Sonicwall or Barracuda and you can buy any number of Raid x file servers.

(i work for neither barracuda nor sonicwall, but use multiple products from both of them and for the money, their good)

If you were going to build a full domain network with Active Directory, Print, File Shares, Exchange, etc... then I'd go with VM's

We're (day job) a Dell shop and you can get really nice servers from them on the cheap.

Get a few (2 or 3) big powerful servers, run ESXi on them, put the different systems in as VM's and your good to go. For VM's you want mammoth ram and processor. Storage is only important as how much you need to grow.

Like you said, at that point, the OS and system are just a few files you can download and write to tape, transfer to a different server for DR, whatever. hell, if their small enough, you can burn them to blue ray.

Its all about money and what you need to accomplish in a given amount of time. If money is no object, you can do whatever you want. If money and time are tight, your options will begin to get limited.

I'm personally a big fan of appliances and use them whenever I can. Theres no Windows OS to patch, if i have a problem, i have 1 company to call, not 3 (server, os and software) and a lot of them can be bought with some sort of hardware assuance where they can replace the entire box within 48 hours if it fails.
I probably came off too harsh. I'm quite familiar with the idea of embedded datastores, SQL and otherwise, and I didn't mean to attack the concept. I was more trying to illustrate (albeit weakly) that the marketing seems a bit off.

Like I said elsewhere, to me NoSQL tends to mean "big, distributed storage thing that isn't RDBMS, usually with an emphasis on horizontal scalability." Others have said correctly that some also take it first to mean schemaless and relax the "big" requirement. However I'm still confused on what value a general-purpose "schemaless" datastore provides in an embedded context. I write schemaless in quotes there because there's still an impedance mismatch between the format in which your application works with and the format in which the datastore works.

All of these rely on some general-purpose abstraction. But your application, if designed properly, probably makes use of a number of varying data structures. What are you gaining by pushing all of these through some abstraction? Assuming that all you're after is simple persistence, I have to ask - is writing data to disk really that hard?

That said, I've used local persistence libraries plenty, usually as a persistent local cache, and/or as a tool to enforce a schema which allows for data migration between constantly updating versions of software.
Neither does I assume "Italian Dressing", "French Dressing", "Greek Salad", and of course "French Fries" which apparently are actually Belgium
A web app would immediately make me not interested in it.

The great thing about an excel file is you can share it with your co-founder/accountant/CFO without needing to create accounts, troubleshoot "I can't log in" etc.

How many people write a web app to do their financial forecasting vs plugging it into Excel. Say what you will about Excel, but the world runs on it.
I'm a little concerned that it only goes up to J.
Did you consider any alternatives to numeric.js?
How does this compare to something like FreshDirect in NYC? Used freshdirect for a long time and it always felt so amazing. The timing savings always makes me feel good about paying the higher cost.

I've never felt the need to order my groceries via an app, could have just been a web experience and I would have been just as interested in using Instacart. Always wondered why they started with an app.

Hope this expands to LA soon.
https://github.com/Softmotions/ejdb

exactly what you wanted.
Does it matter? Clearly they prefer to stay anonymous, so how about respecting that?
The evolution of the iPhone Camera
> The govt comes by with a subpoena (secret, classified, or public) and requires Microsoft or the customer company to produce communication records that exist in a form that may be used as evidence. Failure to do so is best contempt of court and worst obstruction of justice.

This assertion seems dubious - IIRC the law (court order or subpoena or whatever) cannot compel a company to disclose information which they do not have in their possession. What are your sources (and/or credentials) supporting this opinion?

[EDIT] While we're at it, could you please also substantiate the following claim of yours? It doesn't look right either - if this were so, then emails would be retained indefinitely whereas we know for a fact that they are routinely and aggressively purged, except when explicitly held for discovery.

>There is a prevailing theory that companies are responsible for employee actions, and failing to log is seen as unacceptable.
Zombie climate sceptic theories survive only in newspapers and on TV
Milk + Lactobacillus = Yogurt, Water, Acid
Lean Startup Methodology, Critical Design Theory: Separated at birth?
oh yeah, don't build them yourself; I know it's fun and you probably want to (i have) but if they fail, you have no one to turn to but yourself. If i have hard drive failure, ram failure, whatever, first thing i do (after diagnosing ) is call my Dell rep - parts within a day or 2 and if its under warranty, their covered.

spare yourself the headache / midnight nightmare.
Err... Google can just use a custom domain (e.g. "googleusercontent.com" that they already use) to serve user-supplied files rather than stopping the service altogether, so I guess this is not the issue here.
I suspect that the real-world app using bubble sort would be fine...until the day it was not fine. By that point, you'll have a bunch of people who depend on the software, while you scramble to figure out why things became so slow.

Constant factors should not be ignored, but neither should scalability. That is the reason that production-grade sorting algorithms switch from quicksort to bubblesort/selection sort when the sequence is short enough. That is also the reason we typically use quicksort rather than heapsort -- quicksort usually has a lower constant factor on modern architectures, which is what matters when the asymptotics are the same.

The problem with focusing on the performance of your system for particular input sizes is that you are usually not guaranteed that the input size will not increase. It is not premature optimization if you have a good reason to believe that the input size will not grow, or that it will not grow enough to matter. Such is the case with matrix multiplication. If you have no evidence of that, though, you are almost certainly better off choosing the asymptotically better algorithm first, and coming back to tune that / switch to difference algorithms on smaller inputs / etc. later on.
safeway provides grocery delivery of its own which I believe automatically has the loyalty card discount: http://shop.safeway.com/ecom/home
[Show HN] Coursera Forum Glasses