skysight-inc/HackerNews huggingface dataset:
This isn't the only or necessarily the best way to think of infinity, but I think it's one of the better introductions to the idea: Think of infinity not as a concrete number (which it isn't, but without a replacement concept it's very easy to treat it as one because you know nothing else), but a statement that the answer to the question "Is there another?" is always "Yes". If you have 3, you can ask "Is there another?" and get three yeses, then you get no more. For 5, you get 5 yeses, then no more. For infinity, you never get told no.

There's no difference between infinity and infinity minus 1, because even after asking once "Is there another?" of your infinity, you've still got something that will forever answer "Yes" just as you did before.

This is also useful in things like proofs, because of that property. For any given finite instance of whatever thing you're trying to prove, you will never fully "use up" the infinity, but because of the way infinity never says "no", it allows you to write the proof without having to handle the cases where you run out of something, which can make things a lot trickier.

Similarly, "taking the limit as x goes to infinity" is said that way because x never reaches infinity, it's never "equal to" infinity, but for any number you choose, you can ask the question "Is x there yet?" and the answer is "No", always.
How to Find the Perfect Startup Job: "Start with 'When'"
The UK post-Thatcher doesn't have hugely generous social welfare

Are you serious? Welfare + healthcare + pensions = 7.6 * defence in 2012[1]. People say cut Trident, well Trident is a rounding error. You could pay for it out of the NHS IT budget alone!

[1] http://www.ukpublicspending.co.uk
Design of article widget makes me want to fail.

Also, not many of these are high margin businesses. Meh, you have a $2mm revenue shipping business with 10% margins and 10 employees that takes all your time to run. I would rather own a $100k/year web service.
1Password with DropBox sync works flawlessly for me. I love it.
Let's also not forget the Linked Data idea. You find a node in an RDF graph that you're interested in? Follow the URI that is its id and get more RDF describing the node, and so on. A web of data. We're not there yet, but the number of RDF-ized resources is growing.
Exactly. I've only allowed one exception to my "coworkers can't be friends on Facebook". Don't get me wrong, my boss isn't a bad guy, and if we didn't work together I wouldn't have a problem with it, but the employer-employee relationship would end up coming first, so I would not recommend that anyone risk it.
bug: 4=x^4 does not imply 4=∞(x), therefore you can't 'go back up' in the reasoning.

The psychological core of the "paradox" is that ∞(√2) actually equals 2, bringing credence to the second part. This does not actually makes the first part a valid proof of x=√2 either (as the bug still applies). All that it proves is that IF 2=∞(x) then it MUST be √2. Remains to be proven is that n(√2) converges when n->∞, and does indeed converge towards 2.

For the second part to be proven false, it is sufficient to show that convergent values are originating from [e^-e, e^1/e] and that for x in [e^-e, e^1/e] we have ∞(x) < 2.8. Therefore ∞(x) can't equal 4, ever.
Derek's post was a surprise - though I shouldn't have expected anything less than the unexpected from him. I think a 'desk' like his is something to aspire to - the freedom of not being tied to a physical location to perform what would generally be desk-bound work.

I also sometimes find that a desk as a place to work carries too much expectation and pressure - sometimes it's useful to step away from it and have fresh surroundings.

[Hi, I'm the founder of Tagbento - if you have any questions just ask. Your feedback is welcome too!]
i don't think it's horrible, it's just not the only way.

"display advertising" isn't going away. just because someone doesn't click on something (or otherwise 'engage') at the moment of viewing doesn't mean that it was wasted. People remember stuff, and often won't act until they see something 8-10 times.

Just because there are other ways of measuring doesn't mean that using 'impressions' to gauge ROI is 'horrible'.
Thank you! It says president in the article, but I couldn't change the name on here (ycombinator)
Perhaps, but it seems to be a pretty legit reason to pull something.

edit: instead of downvotes, i'd love a response to understand why someone should be allowed to put a GPL application on the app store and not distribute their code (and that you can't copy the application and send it to others, etc). Seems to be a pretty clear GPL violation.
... If you consider "not living well" to be a house, Sky TV, 40 fags a day, as much lager as you can drink and as many takeaways as you can eat. Admittedly their designer clothes will be fakes and their gold jewellery will be 9-carat.

No-one in the UK is actually poor.
Control-click on the address bar, click "Edit search engines...", and you can create a thing. The keyword will be a shortcut for the page, and "%s" in the URL will be replaced with the text following the keyword when you type it in. For example, here's my Wikipedia search engine thing:

Name: Wikipedia
Keyword: wp
URL: http://en.wikipedia.org/w/index.php?title=Special%3ASearch&go=Go&search=%s

Then, when I type "wp cheese", it goes to the URL "http://en.wikipedia.org/w/index.php?title=Special%3ASearch&#..., which is a Wikipedia search for "cheese".
The Customer Is Not Always Right - Mint Blog
You don't seem to have understood the point. Let's do it without re-using the same variable name.

Solving 2=y^y^y^... lets us find that y=sqrt(2).
Therefore sqrt(2)^sqrt(2)^sqrt(2)^... = 2

Solving 4=z^z^z^... lets us find that z=sqrt(2).
Therefore sqrt(2)^sqrt(2)^sqrt(2)^... = 4

Therefore 2=4.

Now, could you explain your resolution of the "paradox" more clearly?
I think mobile carriers will be some of the first to transition. The number of devices they need to connect is exploding, and since they have more control over the devices than general ISPs, they can smooth the transition.
You're saying that a standardized formal model of a graph is equally hard to understand for programs than human language? The people working on natural language processing since decades must be really dumb then.
There's been a bit of discussion about this on our blog:
http://blog.rapportive.com/40551428

Does that help?
Pattern Recognition and Machine Learning, Bishop
http://www.amazon.com/Pattern-Recognition-Learning-Informati...
I think you've found a good problem, but I honestly think this is a very narrow solution. If anything people are going to be text messaging their locations to one another, not speaking them over the phone, in which case you'd just send a link. If they are on a call there's no guarantee that both parties can use data while talking.
Ah yes that's the article I was referring to, I thought it was Puerto Rico maybe that's by I couldn't find it.
Ask HN: What to build OR How to do market research? 
I am a developer who builds web apps for lots of clients.
I want to build something as product for which people will pay, but don’t know what to build.

1.How to do market research to know about competition and market size?

2.Competition is profitable or not?

3.Should I take inspiration from existing products in market?

I know best product I can build whose consumer is me itself, but as developer I use most of development tools which are already awesome.

There are lots of cool ideas are in my mind like one more twitter client or some facebook app, but these cool apps are not going to make money.

I know this problem is not unique.

I am expecting some kind of direction from this post.

Thanks in advance
What I don't understand is what happens to website hosting? Will the cost of a Linode go up? Will they be able to get IP addresses for new customers?
Each person is supposed to get assigned a /64 from their ISP, which will be then assigned to any downstream devices.
How many users do you have now ? how many requests per day ?

It's a nice tool, maybe some marketing ?

What you used to create the site ? nice design !
Ezel izle
Ezel izleyin kacirdiginiz bolumlerini, ezel son bölümunu sitemizden takip edebilirsiniz. Ezel son bölüm izleyemenler icin bu haftanin ozeti: Dayinin heyetin basindaki tahtina kurulma zamani geldi. Yani basinda sag koluyla birlikte. Ama kimin sag kolu olacagina henuz karar vermedi. O bu karari verirken Ezel de Şebnem hakkinda son kararini verir.
Precarious means that you have no savings, if you're working there is perpetual job uncertainty but in most cases in these areas there is what's known as "generational unemployment".

Ok, I think I understand what you mean by "precarious". It sounds as if the poor have a stable level of consumption (or at least a stable minimum level of consumption), but the specific manner in which that consumption is paid for can vary significantly - one week benefits, the next week employment. Also a high risk of crime, due to inadequate police protection. Is that a fair assessment of what you mean by "precarious"?

Now for some reason, the weekly variability of income and the risk of crime causes the poor to value an infinitesimal chance at large sums of money a more strongly than immediate and certain consumption. Assuming the poor are being rational here (rather than simply innumerate), this suggests that the poor assign a very low value to additional consumption, or perhaps a very high value to purely psychological benefits.

I have a suggestion for improving the lot of the poor in the UK: your government should sell more lottery tickets and use the profits to pay for additional policing. Perhaps you should also try to encourage microfinance - in the US, nonviolent microfinance outfits offering "payday loans" have pretty much pushed loansharks out of the market.
How successful are the people you hire, and how well do you avoid bad hires? Ultimately, until you have a few years of data on your own decisions, it's hard to know how "effective" your interviewing process was. And even then, without wider baselines for comparisons within your corporation, you don't know how much better you could have done -- you only know how poorly you did by how many people you either had to terminate or did not turn into the high performers you expected.

Most big tech companies probably do this -- if you had done a few years of hiring at Google, I'd bet recruiting could have told you how you did. At Microsoft, recruiting could tell you where your recommendations ended up, how you ranked as an interviewer, etc.

The week on-site is probably a good substitute if you don't already have someone on your team with the proven ability to asses talent and fit rigorously and quickly.
Well ok, it's an added detrimental socio-economic impact.
I use small set of passwords (in my head) combined with the pwdhash browser extension - https://www.pwdhash.com/

E2A: There's a chrome extension available too - https://chrome.google.com/extensions/detail/dnfmcfhnhnpoehjo...
Lawyer up? Not familar with that phrase...
U.S. seizes 10 sports streaming websites
Equations and Methods : On a New Road - James Gosling
Google bets $20K that Chrome can't be hacked
RDF is certainly awkward for many use cases, but it's the same API everywhere. Each custom web API needs custom code to use it.

I don't believe in automatic agents, either. But RDF as a universal data format, forming a web of data, can be useful even without agents. It allows linking, combining, loading and querying data from different sources without writing any code at all.

We're not at a point yet where this is often possible due to the lack of (good) RDF data, but the idea is strong. I work on uniprot.org, providing one of the largest free RDF data sets, and we see strong interest from our users---bioinformaticians who often spend most of their time writing import/export scripts instead of doing their actual work.
In SF and NY? (And some other major cities) Yes, yes it is.
it looks cool/useful at first glance?

Anyone have any production level experience with this library?

How is it's maturity/stability?
Nokia's been pushing IPv6 for a while. It apparently has a significant improvement in battery life because they no longer require devices to check in and renew DHCP leases as often.
FYI, the reason the big backup providers don't do "standard protocol access" is because it's actually far more expensive to provide.

Take for example, the case of backing up a folder full of files using rsync over ssh, vs. using the SpiderOak client.

Every time you run a backup job, rsync must examine the local folder _and_ ask the server to examine the remote folder, so it can make conclusions about what needs to be transferred. In short, to do a new backup (a write operations) many reads are also required. Furthermore, those reads tend to be non-sequential (seeking to a bunch of different inodes to stat files, etc.)

If you compare that to the SpiderOak client, it already has a near real-time accurate database of exactly what exists on the server. There's no need to burden the server with a bunch of disk seeks (or any actually) to assess what needs to be done. In short, the backup operation can be accomplished by the server using mostly sequential IO, writing only, because of this added intelligence in the client.

Aggregated across a large population of users, this difference in usage patterns greatly influences the hardware requirements and therefore the cost per GB.

...and by the way SpiderOak will run on just about any platform that Python will, with or without a GUI.
Pfft. 10.x.x.x for me.

http://www.faqs.org/rfcs/rfc1918.html

10.0.0.0 - 10.255.255.255 (10/8 prefix)
172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
Haha, awesome! I installed two extensions to Chrome immediately :). It is sad that collapsible comments doesn't work on HN sidebar :(.
I understand the closed loop. I did a bit of research when I wrote my last comment and when I read that line is when I realized how dumb I was.

So.. electricity gets pumped into the grid from some power station, and then [a given unit of electricity] loops repeatedly around the loop until it's either consumed by an appliance or is converted to heat by the resistance inherent to the transmission lines themselves?
I asked this question on a similar article that gained no traction here recently: what do I, as a regular user of the internet, hosting no domains, and with no real responsibility for any website technicals, need to do about this? (Or what can I do about this?)

Do I need to request something from my ISP? Lobby them to see if they take it seriously? Or do I have little choice but to hang around, feeling smug because I've heard of IPv6 before this week, but waiting for someone else to ensure I transition?
When you describe rail and green energy projects as "uneconomical in the free market", are you intending to compare these projects to existing options for energy and transit like coal and cars+highways+oil?
I love how if you click on one the Android links from within Chrome (or, indeed, simply browse to: https://market.android.com/ with Chrome) You will get a giant red SSL warning saying that the site is misrepresenting itself and is really .google.com! hilarious.

<quote>
This is probably not the site you are looking for!
You attempted to reach market.android.com, but instead you actually reached a server identifying itself as .google.com. This may be caused by a misconfiguration on the server or by something more serious. An attacker on your network could be trying to get you to visit a fake (and potentially harmful) version of market.android.com. You should not proceed.
</quote>
It seems like the missing piece for you is that RDF is one level of abstraction higher than what you're talking about.

If you're just thinking about parsing data out of the above XML snippet, yeah, of course it's more complicated. But the point of RDF is that you don't think about the serialization format (there's libraries for that). You should be thinking about your data at a higher level of abstraction, at the level of "triples" and "inference rules".

You're expected to use a triples database and an inference engine of some kind, either a library or by rolling your own. If you're not, then I agree, you're not deriving any benefit from RDF. But if you are, then it lets you deal with your data in a more abstract, generalized way that does provide legitimate value for certain use cases.
You can also publish RDF via JSON: http://json-ld.org/
Visualized: Nokia R&D spending, almost 3 times its peers
EVERYONE feels that way. I don't bother sending around Forbes links anymore because they require so many clicks. One piece of advice - make a printable page that way we don't have to click so many times
I suppose I'll be in the minority on a site run by a VC, but I'm pretty disappointed that a get-"rich"-quick story like this can outpace technical articles here - no doubt the word "profitable" in the title helped. I certainly don't think there's anything "wrong" with what you did, it's just not what I come here to read. I'd always kind of held the belief that this was a site for lots of really smart folks talking about current technical issues, but maybe I've been fooling myself a bit.

Credit where it's due though, the site appears to have been coded up pretty well
> Do I need to request something from my ISP? Lobby them to see if they take it seriously?

Yes, but it's less crucial for you. Ask for a timeline for IPv6, if you'd like, but don't expect much.

You can also set up IPv6 for yourself or your home network via a tunnel (which is a pretty fun exercise), and get access to the IPv6-enabled Internet. All recent operating systems have very good support for it -- even Windows 7 will hear RA and autoconfigure itself.

Start here: http://www.ipsidixit.net/2010/02/24/228/

You can get a tunnel here: http://tunnelbroker.net/main.php

Other people use this, but I prefer HE: http://www.sixxs.net/
More specifically, it is an extensible microformat. Microformats are practically a subset of RDFa with locked-down ontologies (hCard, hCalendar etc).
incorrect location by about 15 kms
I am concerned people don't understand the point of the site if so many of them are voting for this. And it takes more than a 'flag' to communicate that.
I like interviews where you explain existing code you've written. I do well with those.

I also do well if they give me a homework problem before the interview.

True story. Interview at Google. They had me make this AJAX web application as homework before the interview. Three people told me they LOVED my solution and thought it was beautiful. I figured I was a shoe-in for the job at that point.

But at the interview they never asked me any technical details about it. They then proceeded to ask me what happens when you add a '4'+4 in javascript. My mind kind of blanked. At which point they assumed I couldn't program :-( Even though I had created this web app they all loved.

They sent me home after one 30 minute interview even though I had to take two days off of work and fly across the country. A very dismal experience it was.
First I would request it from my ISP. The more people requesting the more likely they are to take it seriously.

The second thing I would do is setup ipv6. We are currently in a chicken/egg problem. No one uses ipv6 because no sites use it. No sites use it because no users use it.

Adding a bit of ipv6 traffic to the internet helps. If your ISP doesn't offer ipv6 you can setup a tunnel using a ddwrt router and a tunnel provider like Hurricane Electric.
Huh - cool. We're actually in the same country, just about 40 miles apart.
I look at Techcrunch like this.

TechCrunch is TMZ for our industry.

On one end there is the phenomenal up to the minute, you can't find this anywhere else, everyone will be talking about it nonstop for a week, they scooped everybody stuff

ala the path scoop from yesterday
http://techcrunch.com/2011/02/02/google-tried-to-buy-path-fo...

and then there is the tech/startup industry and industry celebrity gossip.

If you look at as such you won't be so surprised and offended when you read it.
Our CMS user interface is built based on RDFa:

http://bergie.iki.fi/blog/using_rdfa_to_make_a_web_page_edit...

The content repository we use also provides RDF storage and querying:

http://www.midgard-project.org/updates/midgardcr_10-12-hrung...
The company isn't, either. I've been waiting for Mint to kick me off their site for ages, yet all I get are emails with a subject line of "ACTION REQUIRED" asking me to log in once in a while or update my bank info. I have not logged into Mint for at least a year but this has been going on for at least four months, so I'm thinking it's not actually required.

You may not think this is such a big deal in the grand scheme of things, and you'd be right, but when the company posts blogs like this and plays a "Garsh, we're just a little old banksite" card, I get the feeling they want to be trusted and taken at face value. However, my experience is that they're just using a basic customer retention act and that it has nothing to do with reality, just like their "ACTION REQUIRED" emails.
No, you don't. I'm very much not a fan of how this was written up. This is a straightforward "forced-browsing"-style web bug that disclosed support tickets. You could write an article about how support systems are often ignored during software security projects, but that's not what this guy wrote. I'm not really sure what he's trying to demonstrate, other than that he is awesome and Twitter less so. Stay classy.
Nothing.

Even if you host websites, nothing until ipv4 actually gets scarce or costly.

Just because all ipv4 address space is "allocated" doesn't mean it's used or even allocated to end users.

I'd start worrying when you have to pay a lot of money to get a second IP on a server for example.

That'll probably be years away.... still good to read up on ipv6 though.
Funny, these AHN's come up every few months or so. I wrote a good portion of the code and architecture for the kink.com sites. Decided to leave after 4 years working there pretty much because my job there was done, things work really well. Despite what people might think, it was not hard at all to find a 'real' job again as my experience working in extremely high traffic environments is desirable.
The first line assume 2=x^x^x^x^... which is impossible. We assume the author is asking: for what x \in R does 2=x^x^x^x^x^... Cognitive bias confuses us.
Agreed. You can get all the benefits of RDF while eschewing the stupid parts. Just because something has a spec doesn't mean you have to use it.

The full XML spec, for example, is insanely complicated. But people still derive value from it by utilizing a more or less sane subset.
Also keep in mind there's likely to be a bit of IP reallocation happening. There are a number of companies with full /8 blocks they can't possibly fully utilize.
RTZ: Smart Purchase
I'd love to hear what you mean by this. In what sense is it impossible to have 2=x^x^x^x^... ??
Fatheadz - awesome idea. I probably couldn't be described as 'big' or 'fat', but my head is wider than normal, which means 90% of sunglasses look absolutely ridiculous on me. I can only wear 150mm+ lenses, such as 'large' Ray-ban Aviators, which are 150mm exactly hinge to hinge (I've measured).

Fatheadz is one of the only sunglass websites that explicitly states the width, in mm, of their frames.
Google's allegation is that Microsoft shows one of several search results.
> Funny, these AHN's come up every few months or so.

And every time I wonder if it's someone trying to score free porn, or a date with an actress.
I'm under the impression that many mobile carriers already NAT their client's devices, so they've already "fixed" their problem.
Vodafone Forced to Send Pro-Government Text Messages in Egypt
How long until someone figures out how to "reprogram" other people's buttons? Imagine the call from grandma when all of her buttons redirect to porn.