skysight-inc/HackerNews huggingface dataset:
This is not the place to give a complete introduction to transfinite arithmetic. However, let me try to give you a sense of what's happening.

You would agree that a collection of three cars is not the same as a collection of three cats, and yet you would agree that 3 equals 3. Just because we are counting different objects, that does not mean that the number of objects is necessarily different.

Specifically, we regard two collections as being the same size if we can put them in one-to-one correspondence with nothing left over. When we are talking about the size of a collection, it doesn't matter what is in the collection.

Similarly when we talk about the collection of positive even numbers and the collection of positive whole numbers. The collections are different, but it's possible to put each into one-to-one correspondence with the other. In this sense we feel that it's natural, right and appropriate to say that the two collections are the same size.

Using the same reasoning we can show that the collection of positive whole numbers (all of them) is the same size as the collection of positive even numbers. We pair off each number with its double, and that gives us a one-to-one correspondence. Given that such a correspondence exists it would be perverse to claim that the collections are of different sizes. The size of each is the same "infinity", even though the objects themselves are different.

And so we proceed. We can show that all sorts of collections are (in some cases surprisingly) the same size. Primes, even integers, rationals, algebraic numbers, all are collections that can be put into on-to-one correspondence.

Having become comfortable with that, it then comes as a shock to discover that there are collections that have infinitely many objects, but which cannot be put into one-to-one correspondence. If you try to pair up the real numbers with the positive whole numbers you always have some reals left over. Always. The generally accepted conclusion is that the collection of real numbers is genuinely bigger.

And so to your closing question.

Suppose we (quite reasonably) define X-1 as "take a collection of size X, remove one object, and X-1 is the number of objects left." If you start with an infinite set (any infinity, and any example) and remove one element, then the result can be put into one-to-one correspondence with the original. This can be proved. It's not hard, but it's a bit icky, and I won't do it here.

But under reasonable definitions of the terms, yes, I can provide a proof that infinity-1=infinity.

I hope that helps.
I dunno. After spending a few years sitting at a keyboard with letters on it, workin' 'til two where they close the joint with the old "You don't have to go home, but you can't stay here," seems kind of attractive. Or would, if there weren't those little wetware alarm clocks always working their particular magic... (And I could still stay up that late on a consistent basis..)
Keep an an eye on the domain, all too often people type 'bitly . com' when I say 'bit . ly' - do you have babylist.com?
FindTheBest Looks Like A Winner
Having been on the interviewing end of a number of interviews, I definitely have found that these types of "quiz" questions ARE EFFECTIVE, to a point. The number of people who claim to know something, but actually don't, are astounding. You'd like to think that people are honest, but they are not.

The main issue is that of time. Interviewing people is an enormous time sync, and spending time to get to know them and their thought process is a complete waste if they don't know the material. Quiz questions can easily weed out the people who claim to know things but don't, and save you a lot of time.

However, quiz questions should not be the only way to determine if someone is good for the job, and you always want to delve deeper with other kinds of questions as well. You can also use the quiz itself as a jumping off point for deeper discussions, which give you insight into thought process, etc...
Practically nothing? Are there tier-1 providers charging for IP space now? I can confirm that neither Level3 nor Global Crossing charge for IP allocations as of a month ago.

(The whole "charging for IP addresses" racket always left a bad taste in my mouth, since it's a public resource for which ISPs aren't paying, other than the overhead of being expected to justify and account for the space they've been allocated.)
My bet is on an educational bubble (although it isn't strictly comparable.)
Early Adapters of Pokemon Black/White will receive a Mythical Pokemon
Heres a great treat for all Pokemon fans. Nintendo will offer a special deal for early customers. If you purchase your copy of Pokemon Black/White between March 6 and April 10 you will unlock the ability to catch a mythical Pokemon named Victini.
For many web companies, the brand = the URL. Otherwise, you might wind up with some like "www.clownpenis.fart" (see http://www.tressugar.com/SNL-Skit-Clownpenisfart-1965732)
I guess it depends what you mean by "waste." It doesn't seem like it's any more wasteful than the paper card.
I would love to!

Sadly < 2k left in savings isn't nearly enough to allow me to quit school. If you or any other angel investor wants to cut me a small check I would differ out of Stanford and work on the startup for the next 7 months at least :)
Great design - looks really good at first impression. One thing I would suggest is an About page. Something explaining your frustrations and why you created the company. I think the fact that you were pregnant at the time puts a really personal touch to other pregnant women.
All of their writers have a really formulaic schtick: Paul Carr is the contrarian who knows better than everyone else, MG is the Apple fan, and MA is the guy who really knows what's going on and pretends to be some sort of moral authority over the tech scene. Also, MA is a total hypocrite he ridicules Facebook for trying to trademark 'face' and 'book' but then get's outraged over another person using the word 'crunch'. Poe's law should be mentioned.

I think TC's overall quality has gone down dramatically in the last year or so. I still like the coverage of start-ups because their aren't many other alternatively, but they are ripe for a competitor/disruption.

I also though MG's attack on that single-mom/AT&T rep was disgusting and unnecessary. She says a few things to him on Twitter he doesn't like (akin to throwing a pebble at a tank/castle) and MG basically humiliates her in front of the world and gets her fired for disagreeing with him (like a tactical strike on a defenseless village). It was just... beyond low.
How about; ' + everyone else! '?
Really good advice. I think of toys-r-us and babies-r-us as the same but they're not... Thanks.
The Future of Web Design
Yes, that's a gallery where the text is not overlaid on the photo, and the Google ads are not quite as tacky, but I think this is missing the point: the content in the OP doesn't belong in a photo gallery format at all.

Notice how many points the posts summarizing the article received - NOBODY to whom you actually want to advertise has any desire to sit around clicking through a gallery to read text.
Startup America [video]
I only ever use two spaces. I have always been under the impression it makes it easier to distinguish the end of a sentence and, therefore, readability.

However, I think this was posted about a month ago and the reaction was mixed. Half think it's absurd to use two spaces, the other half think it's absurd not to. The real message here is that it's not a big deal either way and no one should really give a shit.

edit: I just realized hn actually takes two spaces and condenses them into a single space. Weird.
Don't forget the HN RSS feed with embedded articles (generated using Beautiful Soup): http://www.nirmalpatel.com/hacks/hnrss.html
Reverse-Polish notation is safe and good. I use M-x calc, mylsef.
I completely agree with this. Even with the text add-on that box initially made me think only those retailers were included.

The first thing I did was try it out at an off-brand online store. It worked great and I was "surprised and delighted" (to us a term that may be familiar to HNers).

Great job!
Weird. I get the error "Sorry, you need 20 karma to create a poll, " despite having karma of over 1000. Perhaps this still has some bugs.
What happens when the real life event your cash cow is based on is canceled?
Great execution and slick-looking site. Referral programs make this an easy product to monetize.

On the marketing front, one way to pitch it is that a decentralized registry makes life easier for your friends, too. I am so sick of having to pay top dollar for gifts just to get them off of a registry, when better deals can be had elsewhere for the same products. How many extra dollars have gone to Bed, Bath & Beyond instead of Amazon simply for that reason?
The Web design & developer game just completely changed
Minor CSS/HTML quibble - on the example list when you switch between "Show unpurchased items" and "Show purchased items" views the browser scrollbar makes the main content jump. Minor issue - otherwise I love the look and feel.
Timing your exit turns into a crucial skill.
An Even More Secret History of Social Networks
I'm a UT austin student, hit me up with some details laksman@gmail.com
I like the end of the posting, as well as most of the comments in this thread.

VCs have a job to do, just like everyone else. Sometimes they need to make hard decisions.

It's important for every business professional (entrepreneur or anybody else) to understand the basics of other people's goals and incentives.
I have a 12C as well. The OS X desktop calculator has an RPN mode, but the very best RPN desktop calculator is Emacs Calc. It has an infinite stack, is programmable with Lisp, and can even operate on formulas in other buffers.
I don't mind a glossy front as long as I have a matte side. I've used Sanford Uniball Micro blue pens since the 80s, but, at times have had to swap to the bic ballpoint disposable to write on a glossy card. Funniest thing ever was a prospect that had a card printed on actual photographic paper and he said, let me write my direct phone number on the card... after a few tries, flipped it over, still no joy. He ended up writing his number on one of my cards, which meant I had to keep both of those cards together. It was a beautiful card though and after 10 years, it is still in my desk.
ASL = Age/Sex/???
Here is the problem with the message..

On Mobile Networks its not bandwidth usage that impacts other users..

its heavy bandwidth usage on a network of cells that are overloaded. So basically this is move by Verizon to manage
network growth by lying to the consumer.

Now if Verizon said we are throttling heavy usage in the Chicago metro area than they are in fact not lying to the consumer.

Its a plain BS move
When working for Naughty America, I made a website for the members' area that was attempting to be like hulu for porn. Queueing, favorites, recommendations, subscriptions. We had it ready to go...

Naughty America was very resistant to change. The didn't want to divert all their members to a new site. They continued to work on their old members area so I was always feature chasing.

What it comes down to is that porn companies are not set up to be tech companies. They start out with 1 hacker that throws together some shitty CMS site and starts hacking content into it. Since the site quality isn't driving the money, they never lose the "one guy hacking on the site" mentality. They were basically doing everything as a one-off, without actually trying to make a good quality solution that would serve them long term.
My weekend project is setting up OpenVPN on my desktop computer. Android and/or CM supports VPN.
apt-get install rpncalc
As everyone else has said, it's a really nice looking site and a great idea.

How stable are the product links you use? Do you do any type of periodic validation?

If I click on a link to view a product, it might be nice to open that window inside a frame (or modern equivalent) with a babyli.st "reserve" button at the top.
I think the real story would be when you were collared by the SEC for insider trading.
I agree. From now one I will use three spaces instead of two.
You're wasting time in that the server could just as easily say "win" or "lose" rather than making you spend that time pretending to scratch numbers. It's no more wasteful than a paper scratch card, except that with the paper scratch card the waiting is a necessity, whereas online it is not.

That said, my use of the word "waste" is not meant to be negative - they've left that feature in the online version of scratch cards for a reason, because they feel people prefer to have that time wasted - and, as I said, if playing online roulette, I would rather waste time seeing a ball roll around than just being told if I had won or lost.
Oh wow, I didn't even notice that there was an 'article' behind it. All I saw was a single image and didn't notice the 'next' button and originally thought the posters above put up more examples of these sort of businesses
Maybe they could just accept me into Y-Combinator instead of sending that nasty rejection e-mail again* =]

* As an aside, I did apply to Y-Combinator in the previous application batch, with Pocket (http://letspocket.com) when it was barely more than an idea. As crazy as it sounds, I really didn't even know how to program at that point, which is a bit of an issue for a one-man tech startup. I didn't except to be accepted and I'm not bitter about being rejected. That rejection e-mail came and went, and I kept hacking away. Two weeks ago I shared Pocket with HN and it was received ridiculously well. And yesterday this. I honestly don't even know what I'll be doing in another few weeks, but I can tell you that my head is down and I'm still hacking away (Pocket Premium!). So anyway, YC: please be aware that I am not stopping. - From Loren
Usually, in the about, I find "we" to be better than "I". I did that, I did this, I'm the founder, I'm the developer, I contacted xyz, I hope you like it..

"We" would sound more professional.. Just to be clear, I'm not saying you should remove that friendly tone which I find great, especially for that kind of website. However, I'm not sure if it is worth it to put so much emphasis on you as you are not the goal of the website..

We were looking for "bleh". Thanks to xyz designer who join our team and help us create this [etc.].

My 5 cents, good luck :)

(I know it's kind of ironic that I suggest being more professional when I can hardly speak English correctly, but anyway..)
Hear, hear. Too many graphic designers know nothing about UI design.
22 and a career? Wow.

Programming was still a hobby for me at that point. Still is. Sometimes wish I didn't spoil it by making it a career. ;)

I feel old now. I started a record label at 22 and wanted to do nothing but music and party. Didn't get a "career" until a couple of years later when my record label burnt out and the parties stopped...

Just remember to live a little. ;)
Newsweek's Redesign Gets Ready for Advertisers
Thanks for the concrete feedback. Great, great, great.

I put up the vendors page after I saw a vendor create a list of their products with a description "create your baby registry on this site to register for our store". At least I can contact them once we have something engaging to tell them.
What's Driving Mobile Payments
Curveship, a new interactive fiction framework
Well, it's not like you are just going to grab the whole thing and bring it back. But I agree, a new source of rare metals would change the pricing. But, platinum is an interesting metal -- engineers could do a lot fun things with it if it wasn't so expensive.
Copyright law. They already sued Kespa into submission. I'm guessing at some point that they will anoint a company with exclusive rights to broadcast SC2 and start suing everyone else.

http://www.publicknowledge.org/node/3171
It would also compel you to unload quickly. I've been in my house for 8.5 years, and I've still got boxes in the garage.
MySpace up for sale
oh, nevermind, I didn't see the about page in my first look. Disregard my comment :) Love the site!
Hipmunk’s Official Round: $4.2 Million Led By Ignition & Online Travel Experts
Level 3 doesn't charge us either - what's really funny is some of the second-string ISP's actually pay you to take IP space from them.
If you factor in the time for bothersome, inane e-mails, then their 585 figure makes more sense.
That's a basic property of HTML display - collapse of 'extraneous' whitespace.
>> How stable are the product links you use? Do you do any type of periodic validation?

Right now no.

>> If I click on a link to view a product, it might be nice to open that window inside a frame (or modern equivalent) with a babyli.st "reserve" button at the top.

Great idea!
For all the die hard RPNers, m48 and pcalc on iphone great replacements. m48 actually runs original HP48 and HP49 roms. http://itunes.apple.com/us/app/m48/id332100614?mt=8
I'm sure that part of the reason I found Lisp syntax so natural, when I first encountered it, is that all the time I had spent in high school using RPN calculators had already warped my brain^W^W^W helped me escape from the tyranny of being able to think only in infix.
If I were building a toolbar that followed tracked people's clicks, I would take some measures to have it record the 'final' URL loaded by the browser and not the naive link from the DOM. There are all sorts of redirectors in use and not working around them generically would give distorted results.

The lack of google redirects in bing's results doesn't look like proof, or even a smoking gun to me.
This is generally true of offline scratch games, too. As soon as you purchase the ticket, the outcome is determined. There is no way for you to manipulate the ticket itself and turn a loss into a win.

If you can get information from the ticket, you might be able to identify which tickets are winners, but this won't turn a loser into a winner.
Wow, congratulations. The product is really well executed, and the simple fact you did it, and also looked for a partner, is awesome.
Just wanted to note that this was before anyone knew what Hulu was :)
Just so long as the suggestions don't end up being spam!
I can seriously see this happening.
Can you talk more or share some tips about packaging? I've had an idea for a shirt I've kicked around for a few weeks now but I don't know anything about the process.
I like it, but we don't have any money or anything to give away beyond the promise of a useful service...

How about high-fives, hugs, or handshakes?
HN is missing from this triangle
If you learned to type on a typewriter, you probably do.

If you do a lot of work in monospace fonts (like many computer programmers), two spaces continues to improve the visual appearance.

But overall, I give this issue a definite "meh."

Anybody want to make a browser addon that removes double spaces after a period, or adds them, according to a user preference setting?

kb
Wow. Prices like it's 1993!
Where Have All The Music Pirates Gone?
>Biodiesel fuel from restaurant frying oil

My sister-in-law sells restaurant equipment. One of her products is a catalyst (some sort of metal mesh, I think) that you put in the fryer to keep the oil fresh--makes it last 3 times as long, I think. That sort of thing will make it harder to find oil for biodiesel.
I've always been curious with these transcoders and copyright law. Why are they allowed to alter and redistribute content without the permission of the author?

Could I set up proxy that strips flash ads out of other people's content and replaces them with my own tasteful text ads? How is that different from scraping their content and reposting it on my server?
im 20
LinkedIn: One Class of Stock Too Many
No. Tagged is a scam that, among other things, logs into your email accounts and sends mail to all your contacts saying you "tagged" them in photos, etc.
You can use one I hacked together ... only shows items with 20 or more upvotes to make the stream manageable.
http://hackernewsrss.heroku.com/
It is in 2.2. Check out:

maxmemory-policy allkeys-lru

How do I know? We ( http://bu.mp ) push 100s of GB though redis every day in LRU mode.
Piper: Apple's $3.9B component deal more evidence of Apple television
Super Bowl ads hit Web before the big game [video]
You might want more instruction on how bookmarklets work. Most people have no idea WTF a bookmarklet is.
45 and still love to code. I still feel like I'm 25. I attribute this to exercise, a sense of humor and beer. (not necessarily in that order)
I disagree with this. It always makes me a feel little duped when a one-person operation uses "we".
I sort of disagree. I agree that many kids will spend more time doing things that are immediately satisfying, but I think the values they absorb at an early age have a bigger influence; When I was really young my Mom would take me to museums and sciencey type things; Places established to celebrate achievements that take people entire lifetimes to complete. I suspect that this influenced me to later ignore her advice of playing outside/going to bed on time/finishing homework since I knew those weren't the sort of things that would turn into stories to tell grandkids. I instead spent late nights discovering PCs and the web and dove in and fine-honed my skills with the opposite of praise or recognition (building web apps in Idaho middle/high schools just gets you called a nerd). I am now employed building enterprise-level web apps.
I made http://pix-plz.com . I originally set out to make a site that was easier to use than hotornot.com (a lot of people just rate all photos the same, because they want to see more.)

The site has languished, as I'm not really sure what to do with it, but I'm proud of the features I implemented, the UI, and the things I learned in doing it.
I did a traceroute from my cable modem a few years ago, and found that my traffic went from my internal network to my public-facing IPv4 address (assigned to my router), then through several 10.x hops before finally hitting the public internet again. Quite a sane use of resources, I thought.
What else do you think non-technical founders should be obsessing over in those early months of a website? ;) But in all seriousness, that's a culture Steve and I had no choice but to bake into the site from day 0 because we had nothing without an active (and awesome) community. I'm thrilled to see that even a year after they trimmed the fat and we left, it still persists.

Make no mistake, reddit has 1B pageviews a month because of the community -- those of us who wear admin badges are basically just janitors who keep the place running, so to speak.
If you don't mind me being a bit of a contrarian, I notice that apart from the green boxes and the biofuel ones, none of these companies seem to be "saving customers money". And many are selling straight novelty items (puzzles, racing car school... glowing icecubes?) Am I missing anything here?
The design really looks great. We're always looking for good designers to work with, but not being a designer myself, I'm not a member of forrst.

Are you a member, or did you browse the work posted and contact someone directly? Would love to hear more about that process.
Crowd-sourced MySpace buyout now up to $135k.
Of course it's a bad test.

Google says they only hire people above the mean skill level of a Google engineer, so you need to look better than an average Googler to get in.

http://googleresearch.blogspot.com/2006/03/hiring-lake-wobeg...
I think the idea is great also. http://frogbox.com/ is a company started here in Vancouver who does the same thing. they also have started franchising it.
I have never used them but had a friend looked into using them and said it was too expensive compared to regular boxes. It looks like it cost about $110 for boxes for a two bedroom rental. Guess the convenience and green benefits are the selling factors.
"But I actually think aesthetics are the best argument in favor of one space over two"

OK. Some people think two spaces look better. Who cares?