skysight-inc/HackerNews huggingface dataset:
> I've never heard of a compiler that will do Big-O complexity analysis for the programmer, at least not without dependent types (static analysis dependent upon and capable of predicting dynamic (run-time) values)

Why is this hard? In Clojure, the complexity of all core functions is well defined. i.e. map is O(n), hash lookups are log_32(n) or better, etc. Seems like you can compute the complexity analysis at compile time. Then at runtime, you only need to know whether n is "big" or "small".

>most actual code in non-functional languages is written in an effectful, inherently-sequential style when it could otherwise be stateless/pure and embarrassingly parallel

I'm pretty sure there are plenty of companies who would switch to functional, if it actually gave them the SSC.
Hey that's me, and my theme!
about 54 TB. But only about 2% of tiles have ever been seen. Each zoom level has 4 times as many tiles as the previous level and zoom level 18 (the highest) doesnt have a lot of data.
My underbelly feeling says that this isn't very unique, nor novel (still good, though!)

Admittedly I don't know the details, but I'm pretty sure that in the Netherlands a large amount of government levels have guidelines in place that state that 'if quality is equal, the open-source alternative must be chosen'.

Companies such as Zarafa (open-source alternative to MS Exchange) have been able to grow and sustain themselves in their early years much thanks to these guidelines.
> Here is a picture of....

Alright, look...those are pictures of people who are topless and are taken in non-sexual environments. Biologically speaking, there is nothing more sexual about those photographs than photographs of the same people wearing shirts.

Physiologically speaking, though, there is a difference. For most of us, chemicals in our brain respond instantaneously to those pictures, virtually shouting, "this is a naked woman". And its not just a male response, either (http://list.msu.edu/cgi-bin/wa?A3=ind9710B&L=AEJMC&E...). Nudity sells, and not because naked people look different. It's because our brains are tuned into paying attention to them, both by nature and by nurture.

The point of what I'm saying is that anyone wearing things that make you look good will ALSO make those who would otherwise be attracted to you pay more attention. It's not a choice, it is literally hard wired into our brains. Our brains respond chemically (http://jn.physiology.org/content/98/3/1374.abstract) to the pleasant, attractive things that we see. You have to understand that although you wear your jeans for yourself, anyone who is chemically predispositioned to do so will ALSO have their brains respond chemically.

This is no excuse for anyone who acts improperly in response to something that they see. We're all fully capable of controlling ourselves. Some of us have more practice in it than others, but society couldn't function if we couldn't control these reactions. The chemical response doesn't go away, though, it's just mitigated by other chemical responses.

We can (and most of us do) control our responses, but it doesn't get us anywhere to pretend that it doesn't happen. .
Hi, and sorry for MY late reply. Yes, they are quick in replying. But I must say I write to them in Italian :)
For power users who want control over their computer (which the OP seems to want) Linux has been definitly the better choice than any windows version for years.

Commercial OS's are driving away from working to entertainment environments because there is the growth. The market for selling new working environments is saturated. But that does not mean that this market is dead or is going to die, since there are always going to be productive people. It is a big mistake to ignore this huge market.
Phone signal booster
A phone signal booster is easy to install, these are small chips that are installed at the back of the cell phones that positively impacts the signal from that time on.
Our crypto design is this -

1. The sender generates an AES-256 key for the transfer.
2. The receiver sends a public key to the sender.
3. The sender encrypts the AES key with the public key, and sends to the receiver.
4. The receiver decrypts the AES key.
5. The sender then sends all the bytes, encrypted with AES.

The point of using the AES key is that it's faster to encrypt/decrypt. The point of using the public/private keys is to get that key to the receiver in a secure way.

The transfer has a session key from our server so each peer can validate the identity of the other peer.

How's that sound?
How does it work?

1) I visit the site, it gets my IP address

2) Magic happens

3) It displays my nameserver address.

What is going on in step 2?

Edit: worked it out.

For those interested, it uses a Javascript include from a unique subdomain name. Because the subdomain is unique the app can work out the relationship between client IP and resolver.
My wife is a programmer. I hear you!
I think you can layer data on top of tiles from osm with the openlayers api without licensing issues.
No, people are choosing Chrome over IE for home use. The trend is clear; Chrome is likely to achieve a crushingly dominant market share in a couple of years, or sooner.
Nah, I'd have to see some serious cross-cultural research to believe that the "girl's game" is a universal, as would anyone who's had a whiff of anthropology at any point in their education.

Also, speaking as a bisexual myself, I'm kind of offended by your characterization of bisexuals, unless by "bisexual" you mean "intersexed" or "transgender" or something, which in itself is actually just as offensive. Being queer doesn't mean engaging in stereotypical, effeminate behaviors like the ones you're describing.
Still have to do migrations though
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Sending medical records is one of our target cases. We will be HIPAA compliant.

I think we can sustain unlimited bandwidth because we're transferring files peer to peer, so the bytes go direct from sender to receiver. They don't have to go through our servers (except when P2P fails). So, we don't pay for (most of) the bandwidth. We're enabling you to use the bandwidth you're already paying your ISP for.
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This. Why must we re-analyze her problem and say it is something else when she has already clearly stated what it is and how she feels.

Seeing the grandparent as the top voted comment is like HN saying 'hey, we know better, your problem is actually this'.

Which isn't much different from saying 'lighten up' - both amount to dismissing her feelings.
Good suggestion, thanks. We have some polishing of the UI to do.
i was very excited about the ipad magazines and subscribed to a couple. at the time, the way that they were downloaded prevented me from ever actually getting them.

i had to load up the PopSci app, tell it to download, and then just sit there and wait (for hours, on my shitty wifi connection). if the connection died or the ipad went to sleep it had to start again.

i bought 3 annual subscriptions and have never actually been able to read any of them.
>XFCE is fantastic

I use a small pile of operating systems every day, including Ubuntu Studio, which is now on XFCE, as my garage "juke box". Your statement doesn't jive with my experience. Is there a great youtube video, list of metrics, or something that shows great XFCE usage habits or at least what they're measuring to claim success at?
It's like the guy who wrote this article can see into my soul.

Most people on my team over the years we tend to be on the same page about projects, timelines, etc. But I've had people where it seemed like every minuscule detail had to be spelled out or the work wouldn't meet the requirements. That isn't just Jr. developers though, Sr. Developers can go the opposite way and spend months engineering and re-engineering without getting anything accomplished.

Basically I think it's easy to manage people who think similarly to how you think. It's a lot tricker managing people who have a totally different style or way of thinking.
1) See my other post, where I list out how you would build a Sufficiently Smart Compiler for parallelizing preexisting code.

2) You've gone into the research world, which concedes my original point about it not being a viable business ;-).
Google can't realistically push more people to use Google by default. Google search is a monopoly.

I believe it is fair to state, however, that one of the reasons that Chrome exists is that Google wants Google to be synonymous with the Web in the minds of consumers. When your browser is Google and your search engine is Google, the web to you is Google. This will dovetail quite nicely with all the other places they're trying to expand to once they manage to establish a dominant browser market share.
Free ride from SFO if you test our app
We are looking for people who are visiting SF Bay Area in the next 2 months. If you could use a free ride from SFO to anywhere in the SF Bay Area, we would be happy to meet you at the airport and give you a ride. The catch is that while you are riding with us, you will be testing our app (iPhone or Android, your device or ours - whichever you choose). The only requirement is that you must not be a San Francisco resident, because we need to test this app with visitors, rather than with locals. Feel free to refer your friends to us as well. You can contact us at info@citybot.com.
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This is the option I was thinking of pursuing. I don't have nearly the connections to successfully shop these ideas around, so I guess I'll hold onto them until someone "worthy" comes around. If worst comes to worst and I don't find any founders, I'll just wait until I have the time and/or funds to make my ideas a reality.
A decent language that will never make it into explorer and probably not firefox.
iirc there was a port of x server recently to android.
You can now install WireOver at home with your personal email, and install it at work with your work email.

Why would you like them to be linked somehow?
A/B testing understanding might not be feasible, but in the end, they are trying to sell their plugin so A/B testing for signups or sales or something like sounds like a good correlation to understanding.
Yeah, I agree, I really dislike the new Sense unlocking screen. Worse yet it limits me since I cannot use a 3rd party home screen application (like LauncherPro) as the extra buttons in the unlocking thing don't work with it.

Luckily though HTC does provide bootloader unlocking tools on its developer site so that you can install your own build of Android on the phone (and get rid of Sense).
Your product sucks and is over priced for what little value it actually offers.
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salary	fee %	n	fee total
65000	0.2	3	39000
80000	0.2	2	32000
90000	0.2	1	18000
120000	0.2	1	24000

Simplistic EG (and a 2x 80,000 vs 120,000 is realistic), but, like a real estate agent, the cost of NOT closing the sale is greater then pushing for a marginal increase in the sale.

EG salary, pushing for 115,000 vs 105,000 the difference in fee on 20% is 2,000. Which is ~200-400 dollars difference in commission. Losing the offer for pushing for 115,000? 2,300~4,600 (10-20% of fee).
Cool idea, wish I could take advantage of this. You don't happen to need testing on a flight to San Francisco too? ;)
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I don't think that's a better solution, it's similar but less integrated with the app stack.
I'm use linux too, I feel your pain... I'm sorry we don't have it for you yet. We will.
The html page at http://whatsmyresolver.stdlib.net/ loads a javascript script from the url http://whatsmyresolver.stdlib.net/resolver/.

Fetching http://whatsmyresolver.stdlib.net/resolver/ triggers a 302 redirect to a url of the form;

http://$guid.nonce.stdlib.net/resolver/

The DNS server authoritative for nonce.stdlib.net has a simple wildcard configured, so *.nonce.stdlib.net all resolve to the same web-server. Obviously the DNS request for the globally unique id domain name has to come before any HTTP request to the guid url, so when the DNS request comes in the authoritative server can record it in a simple lookup store (guid -> resolver source ip).

Then, when the HTTP request makes it to the web-server, it can inspect the Host: header to determine what the guid was. It then uses this guid to correlate the HTTP request it is handling and the resolver source ip, and generates some javascript with the data we need;

var resolver="192.0.2.53";var edns=true;

It's just a hack I wrote up for my own reasons years ago. But if you'd like to avail of it for any reason (ie helping end-users debug things), feel free to embed;

<script language="javascript" src="http://whatsmyresolver.stdlib.net/resolver/"/>

and use the variables it populates. No warrantees or guarantee implied :-)
I had developed a similar tool: http://wrrrite.com, but didn't know that this is such a highly competitive space
people chose what internet said to take
internet = google.com
and it tells them to do that
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Yes, if the email does not contain link to download an executable, it can be a great way to share files.
Ask HN: FB Login vs BrowserID vs OpenID vs Normal signup/signin?
I've developed a web app(not launched yet) to discover, organize and share music videos. Most of it can be accessed without signing in. Anyone can search/view music videos and playlists. Login is required only to create/manage own playlists.

As of now, FB-Login is the only supported login method. I can also use FB Graph API along with it to let users share music videos and playlists on Facebook. Ideally I would like it to be deeply integrated with facebook.

Which one of these I should choose -

1) FB Login

2) Twitter Login

3) Google Login

4) BrowserID

5) OpenID

6) Normal email registration/login

7) A combination of some or all of above.

Is it ok to launch with only FB Login and then add more login options if required?
Beyond Blue 6: The Great Divorce
I'd love to know what people think the current "state of the art" stack is for rich and highly scalable web applications, something that has been proven to work great in production by big projects. Is it nginx + Rails + Backbone? When I think of fast rich web apps, Facebook and StackOverflow come to mind, and as far as I remember, neither use the above-mentioned tools (not that it means they're bad in any way).

Just a couple of years ago Rails-generated HTML pages were super hot, and now people are almost insulted if you don't have a fairly complex Javascript framework running the show.
Apps like this are funny. Looking through the comments now, it's as if every one of us has implemented one of these (yes, I have too.)

One simple explanation is that they're easy to write, and fill a need we all have. I suspect another reason is that as developers, we notice a problem: "I hate taking notes!" and then instinctively, we try to solve that problem with technology: "I will write a better note-taking app!"

I have no strong feelings about this variant, except that I really think it should size itself to my browser (with a reasonable max-width.) That would make it pretty multi-device friendly (mobile/desktop/tablet), and be basically 0 work on your part.
Breasts, we are accounting for having two lumps of flesh directly on our rib cage. They get sweaty and they need to breathe sometimes--particularly because they require extra layers of clothing (ie. a bra and sometimes a camisole on top for instance).
Oh hey, I wrote that app too! It's probably still kicking somewhere on some domain I've forgotten about. Mine was not better than yours :).
I don't like being reminded / told I'm wasteful with my decisions. Other people might be turned off by the insinuation too. my free 2 cents
reddit was one of the most undervalued sales of all time.
geez, what is up with this spate of snide/cynical posts about PG and/or YC? it's not necessary the content. I mean, I love almost all of what PG says in his essays, but there are at times genuine questions and doubts (e.g., I've heard schlep as a verb more than a noun). Sometimes, these questions of a larger, fundamental discussion (e.g., copyrights & property). questioning is fine, and is necessary in order to attain greater understanding.

what I'm getting annoyed at is the tone I'm sensing -- it's sometimes downright sneering. i know it's been brought up very recently as well, and PG has said it's been happening gradually as the site has grown. i've read the essay on trolls, but this seems like it's something different. jealousy is also something that increases as a function of success, and when jealousy crosses a threshold, it morphs into resentment. just sayin'...
No Pi?
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"Empirically, the way to do really big things seems to be to start with deceptively small things. Want to dominate microcomputer software? Start by writing a Basic interpreter for a machine with a few thousand users. Want to make the universal web site? Start by building a site for Harvard undergrads to stalk one another."

http://paulgraham.com/ambitious.html
Not trying to degrade that VC startup ecosystem but I'm not entirely sure that typical startup is creating more impact than the typical lifestyle business. (Note the word typical) I might even side with the typical lifestyle business probably having more impact. Now that being said I would agree that most likely the small handful of startups that really shoot to the moon have immense unmatched impact.
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I feel the need to point out that regardless of how you're "pre-warming" the cache, you're missing the primary benefit of page caching.

By default, Rails' page caching persists to disk. An immense advantage of this solution is that you can use your web server to serve these pages directly, without ever hitting the Rails stack.

You're saving the page generation time, but you're still hitting the Rails stack + Redis for every single page request, both of which are entirely unnecessary.
We're logging exceptions and connectivity issues to help us troubleshoot problems.

We are NOT logging anything I think you'd be concerned about (this is our BE NOT ANNOYING principle at work).

When we get our Privacy Policy and Terms of Service up, it will be something to the tune of: you own your data, we don't; we don't share your personal information (unless the law requires); and, we don't store your files once they're delivered (bytes go P2P anyway most of the time, so our servers usually don't even see them anyway).

If you have a Pro (secure) account, your bytes will be encrypted in a way that even we can't decrypt. That's the kind of security we would want as users.
Political leaders voice support for Iran-Pakistan gas project
I wish I had written this. If the humor/cynicism gets to you please power through and look at the actionable tips which will earn you more money.

There is approximately no-one on HN, not even at the best managed firms with the least BS imaginable, who would not experience positive ROI from "Congrats guys, we just shipped X, let's have a celebratory dinner at $FAVORITE and I'm buying." That idea is freaking genius. It gets you instant political capital and will make sure decisionmakers actually remember X the next time it rolls around because they'll have a hundred projects to worry about but only one or two which were so important they had celebratory dinners at completion.
Apple demand crumbles
The should, however, is derived from the is. Our prescriptive laws are, at least in theory, derived from descriptions of reality. Thus do we claim contraception should be legal. Thus do we claim interracial marriage should be legal. These rights are fought for; granted from first principles, but also from social realities. "All men are created equal" was only taken to include blacks after the Civil War.

So too must the public attitude towards filesharing define our laws surrounding it. The majority of people have, without caveat, expressed through their actions their belief that filesharing is, and should be, a normal and accepted part of society. This may rankle those whose paychecks are predicated upon the status quo, but it doesn't affect our shifting morals. We are a people who accept and embrace "copyright infringement". It is only once this reality is accepted that the content industry may move forwards.
This already exists. It's called "furries".

No. Really.

See, every furry has a character or three they've come up with. Some of them are self-insertion characters - "fursonas". Some of them are not.

But not every furry can draw. And furry is a pretty visually oriented scene.

So there are TONS of people making a decent chunk of their living on lots of little commissions where they draw other people's characters.

Browse around furaffinity.net and you'll see it in action. (Warning: you will also see lots of amateur art, and if you log in and say you're an adult, you will see some really out there fantasy porn. By both amazing artists and amateurs.) A few of my friends support themselves largely, or entirely, on this.
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You might want to fix this in case you ever decide to add a way to log on:

http://scrib.in/m27dy7

(I added the text </textarea><img src=g onerror="alert(1)"> and went to view it.)
This should never be an issue. A page load should trigger page generation code (I'm not a Rails guy, but the view in traditional MVC), not some massive 10+ second operation.

What you should be doing is caching that big time consuming job (I guarantee you aren't timing out someone's browser with template code) at the model level, and then generating pages off of that cached result. Feel free to further cache the HTML too, but the bulk of the win is from decoupling long running jobs from your display code.

If you want to ensure that the user sees the absolute latest, use an AJAX call to pull the more recent result after serving the previously cached result.
Too much talking about apps.
Not enough writing apps...
I know this. That was what my "don't answer that" was about. Sorry to be cryptic, but I'm fully aware of the politics and power the carriers exert on the US smartphone market. I don't like it, but I understand it.
I think that a dress low-cut enough to be considered unprofessional is a sexual issue by default. Professional standards and decorum exist, in part, to prevent a sexualized environment.

How is it judged that a man's pants are too tight to be professional, or a woman's dress is too short, and what are the reasons? The reasons are sexual, and I might be wrong in this, but I would guess the line exists where people of either gender would begin commenting.
Be a facilitator, not an irritator.

Johnny Cochran called. He said he wanted his slogan back. Don't be 'that guy'.

For the record, I like getting things done too. That's exactly why I focus so much on having the right tool for the job at hand. And if it turns out that there's a better choice than the one that is being made, I will bring it to the attention of the people making the decision. Does it really matter in this situation who's more junior and who's more senior?
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For yet another timezone tool, here's the time at 10pm UTC-6 in your local time:
http://www.thetimezoneconverter.com/?t=10pm&tz=GMT-6
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