skysight-inc/HackerNews huggingface dataset:
The problem with any personality indicator is how rapidly results can change. I fluctuate between INTP and INTJ depending on time of year or who I had to deal with the day prior - and depending on specific social context I am very, very much E.

As a general indicator, sure - it confirms our own self-conceptualization, and can give general guidelines to others as to how we'll respond to stimulus. But the stress is on /general/. Its predictive ability leaves much to be desired.
Twitter just rolled lists out, give them some time.
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Don't really know, why it was downvoted? Can somebody explain?
It's covered. I've already sent in my ex-girlfriend's DNA.
Actually Red Laser doesn't even have a free version.
I heard the news about the Google Closure library last week, but I completely missed the release of this javascript compiler API.

I understand that it compresses your JS pretty well, but what of the "optimizations"? Has anyone benchmarked or tested the performance of javascript code after it was compiled?
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This is a dupe of http://news.ycombinator.com/item?id=943597
"The vast bulk of the ice sheets predate human civilization and weathered the warm period comfortably; the modern melting situation isn't really comparable."

What is your evidence that, this time, the ice wont "weather the warm period comfortably"?

It was warmer in greenland back in the viking days than it is now, but the ice melt is not really comparable? Was the warmth then not really the same quality warmth we have now?
Linux: Minimizing Memory Usage
" A quick little metaprogramming loop goes over the default options hash and adds getters and setters for those properties, so that they work transparently from the object."

Where in your app does this loop exist? Does most Rails metaprogramming happen in models or controllers?

Great post. Very informative.
I just don't see why this would be worth $300-$400. Based on what I've seen, I doubt the software will be really good.

Edit: Remember when it was supposed to cost $200? Then it was $300, and now it's even more.
The MBTI is meaningless. http://scienceblogs.com/cortex/2009/10/the_personality_parad...
Do you suppose there might be any selection bias as to which 'personality types' are more likely to know what 'personality type' they are? And which ones are eager to take a test to find out, and rush back to be counted? And any bias as to whether they report back accurately?
These camps only seem to be opposed. How is the iPod nano not an iteration?
Flagging isn't downmodding. Please don't flag for being boring. Actually, I don't think you should downvote for being boring, either!
RE: Forer

Looking at all the other types, ENTP fits me like a glove. I could see where the forer affect would apply to vague, subjective descriptions - like a horoscope or palm reader, but my personality traits, as quoted by wikipedia --

ENTPs are frequently described as clever, cerebrally and verbally quick, enthusiastic, outgoing, innovative, flexible, loyal and resourceful. ENTPs are motivated by a desire to understand and improve the world they live in. They are usually accurate in sizing up a situation. They may have a perverse sense of humor and sometimes play devil's advocate, which can create misunderstandings with friends, coworkers, and family. ENTPs are ingenious and adept at directing relationships between means and ends. ENTPs "think outside the box," devising fresh, unexpected solutions to difficult problems. However, they are less interested in generating and following through with detailed plans than in generating ideas and possibilities. When ENTPs are used correctly on a team, they offer deep understanding and a high degree of flexibility and problem solving ability. The ENTP regards a comment like "it can't be done" as a personal challenge, and, if properly motivated, will spare no expense to discover a solution.

Is like none of the other personality types and fits me well. Truthfully, it was quite amazing the first time I read an ENTP description.
Don Dodge hired by Google
Watch the Victorious Firepower Fight of Manny Pacquiao vs Miguel Cotto Replay
Congratulations!

Everybody seemed bumed from http://news.ycombinator.com/item?id=922344, but it looks like Don is in a better place. Google certainly meshes better with the YC hacker/startup scene than Microsoft; I'd expect Don's job to be a tad easier.
I'll take a heaping of door number one with a dash of the second.

Alone, the raw data approach is enough to tell you that you're on the right track, while the go with your instincts position is not enough to tell you anything in and of itself.

Sticking to the raw data model but attempting to intuitively discern underlying currents and reasons for the shifts in the data and incorporating those into future direction is the ultimate sweet spot.
Yeah, I just assumed it was a javascript interpreter with a DOM. (Obviously you don't need a whole browser for that.)

I wonder what the performance implications are. Firefox seems way too... single-threaded?
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0ddly, the split is more between NT / NF / SP / SJ ... SJ types are more likely not to do things that involve risk.
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That's yet another overselling shared host running cPanel. Pretty much the stark opposite of what this article is talking about.
Cards on the table: I think Rails developers, as a community, spend too much time on "What is the right way to do this" questions when they could spend 40% of the time on "Does this way make sense?" and 60% on implementing more features for paying customers.

That being said: the fact that this example both cares about how the data is structured internally and discusses the "business logic" of my domain both strongly encourage putting the associated logic in the model.

You can certainly do metaprogramming in controllers, though I have no particular opinion on what the mix is for projects other than mine. An example where I could see using metaprogramming in a controller is having live AJAX-y update of fields in a form. (Why put that in the controller? Because it involves how you are structuring access from the application. And, more pragmatically, because adding methods to a controller gets you routes for free and adding methods to a model does not.)

Rather than defining 10 different actions which are each strikingly similar, just iterate over what fields are in the model and add a controller method for each. You'll get your routes for free, so all you have to do is hook it all together in the view, which you can do with metaprogramming-enabled helpers.
Exactly.

Anyway, this kind of voluntary response poll would have exactly NIL value in answering the question that appears to be asked here, which is, what Myers-Briggs types are there on HN? The people who come forward to answer the poll are not a random sample of the tens of thousands of people who read HN.

http://mathforum.org/kb/thread.jspa?threadID=194473&tsta...

http://aurora.wells.edu/~srs/Math151-Fall02/Litdigest.htm

http://historymatters.gmu.edu/d/5168/
There are two ways to ask your customers what they want: you can ask them, or you can produce a product, and see if they buy it. I'd unquestionably go with the second approach.

Even Google does it the second way, but, like everything else, they do it at scale. Instead of having a single designer, they let all of their engineers design, put everything out there with a "Labs" and "beta" sticker on it, and see what sticks. It their early days, they didn't have the resources to do that, so what did they do? Larry and Sergi pushed forward with their idea for a search engine, even as they were told the search space was closed.

People never know what they want in the future, but, in numbers, they are fantastic at responding to truly good ideas and products. That's the feedback you want, "Tell us what you think" boxes be damned.
Alright. Be forewarned, it will be about 15 lines of code and 2,000 words of explanation on why you want to do it that way. Check HN or my blog (in profile) tomorrow morning US time.
I had made one very silly bot called SPEAK. It used simple matching algorithms to learn. I wondered who would use it, but people actually used it for real.

http://paraschopra.com/software/
http://www.google.com/enterprise/marketplace/search?category...

There's some pretty good stuff in there, and it's dead simple to enable if you're using Google Apps for your domain.
Sybase ASE is actually a really decent RDBMS. What always amazes me is how they managed to completely screw things up to such an extent that they don't even get a mention when people do these sorts of articles and comparisons.

Agree with wicknicks that this is a great document.
Oh, that romantic feeling from the boyhood... =)
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would you mind sharing that python script?
Looks like NT's dominate Hacker News. Its interesting because they(we) take up such a small relative percentage of the population. From a study here - http://www.infj.org/archive/typestats.html, the breakdown for a whole population --

INTJ - 2.1%

INTP - 3.3%

ENTP - 3.2%

ENTJ - 1.8%

Total - 11.4%

So this small percentage of the overall public dominates about 75% HN, as the votes tally up. People here are about 7x more likely to be of the intuition not sensing and thinking not feeling personality types. Also, if you look at all the NT's on the right side of that link, males are about 2x more prevalent than females to be NT's.
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That was exactly my response when a psychologist friend of mine told me about the M-B tests. Then we did a test at work and the result was surprisingly accurate. I know you think it's a waste of time but maybe try it out anyway.

Also, as with many of these things: "the map is not the territory". Use any insight it gives, ignore what it doesn't.
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To be useful (as if) these polls should include results weighted by karma, as it would ameliorate the self-selection bias.
Google Wave's Scrollbars
So then the same people that 'fall' for this test should be the ones who fall for horoscope tests?

With such a lot of intellectual suspicion, I'd guess you're an INTP or similar ;)
I think the whole notion of "you should be spending more time doing X" is kind of pointless. People do whatever they think is fun, especially for open source projects. Maybe you should be spending that time saving whales instead!
That's exactly why it makes a good blog post.
Looking forward to the mods and jailbreaks for cheap subsidized Apple hardware.
For whatever reason some people have obviously downmodded your comment. I just want to say, that was a really good presentation on Ruby internals. I watched the whole thing, and bookmarked it to go through again later. Thanks for the link.
This whole discussion seems to be missing a large part of MBTI's value. MBTI is not just about knowing yourself, but also understanding how other people in a group might be feeling/reacting, regardless of whether or not that reaction is indicative of their personality all of the time.

I've found that an understanding of MBTI has helped me immensely when facilitating or leading groups. Knowing that there will be some people that are most creative when brainstorming on their own (often introverts) and some that are most creative when working in groups (often extraverts) means that I give time for both in any session I'm leading. If I'm running a meeting that is going to go over time, but is producing good results, I'll ask everyone if they are ok with going over time and will set a new time limit. Before I knew about MBTI and realized that people with a J preference (unlike myself) often disengage from any process that doesn't appear to have a defined ending, I was losing out on the contributions from all Js in any meetings gone over time.

Those are just a few examples, but hopefully they show that MBTI isn't just about 'knowing your type'. People will act with preferences on either side (I lean a little bit to the I side, but often play the role of an E depending on the group I am in) but understanding how all of these preferences play out in groups gives you a much better chance of getting the best contribution from everybody on the teams you work with.
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I can't read that giant text.
I'd sell facebook and then go sip a pina colada some place where I'm not scrutinized by everyone about how I should be running things.

I think mark is doing a good job, sometimes immediate profitability isn't always the best route. He's been taking risks by redoing their APIs a few times over, attempting borderline privacy attempts like beacon, etc. I think once the business finds the cash cow, their executives are not going to attempt risky moves that might jeopardize their end of year bonuses. I think it's a good thing that a company as large as facebook is still trying things that might fail.
Tell HN: Techcrunch posting statistics for last week
First of all: #s of posts:

Monday: 33
Tuesday: 36
Wednesday: 32
Thursday: 35
Friday: 23
Saturday: 9
Sunday: 10

Then Startups that actually launched.

Monday: 4- Syncplicity, Discovery News, MojaMix, Townhog
Tuesday: 7- city of eternals , antares, Ioki, Vidly, Toms Planner, Booking Bug, Conversationlist
Wednesday: 6- Personera, Couponbot, StuffBuff, Junaio, Photo Tagger, Rank Above
Thursday: 6- GeoAPI, Vitamin D, WP Plugins, Spotichart, Clickr, Listiti,
Friday: 2- Wasabi, retrevo
Saturday: 1 - myspace fashion,
Sunday: 2 - mark cuban app, Instapaper

So based on that data, which day would you launch on?
Well, the famous, if possibly apocryphal Henry Ford quote definitely lends itself to viewpoint #2:

“If I had asked people what they wanted, they would have said faster horses.”

At the end of the day you're in a gray area, and good judgement is the result of smarts, experience, and luck.
And I see a lot of room for people of many different personality types to believe that they fall into a large number of the categories

That's not my experience. The INTP description fits me almost exactly. Change one of the indicators and the description is partially accurate but with clear discrepancies; change two or more and it's not even close.
I'd focus on strong inbuilt support for band pages and giving bands all the features they want. Bands are one of the last pieces of the puzzle, they still appear to me much more active on myspace.

I'd probably give bands the ability to within limitations customize there page layout, as in they may have to keep the same box structure but can add additional graphics and background.

Also taking this route if successful would greatly help integrating a music business, possibly even acquiring a company like spotify or similar to complement.
nice, in other words: turn company A into competitor B. That usually works great.
which day would you launch on?

I would launch whenever I'm ready to launch, and not waste time trying to game Techcrunch's schedule.
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I think it’s fine to read, in about the same way that pulp sci-fi novels or “chick lit” are fine to read, or sit-coms are fine to watch: Gladwell is a good storyteller, and has loads of amusing anecdotes. As long as you don’t take things too seriously, or start to confuse his banal generalities for insightful modes of understanding, it’s a breezy, not too mentally taxing, way to spend an afternoon.
I was never sold on the idea of a big tablet. It doesn't really matter who makes it or how good it is. The size is a major problem. My feeling is people mostly want devices that fit into their pockets.
I haven't had the opportunity to use the Google Wave scrollbars, but it seems that one advantage would be a consistent and reasonable sized target to click in order to scroll.

I've always found it quite difficult to scroll really large documents with the standard type of scrollbars. The click target is ridiculously small and so is hard to hit with the mouse, and then the scroll is very sensitive, so it's easy to skip over too much too quickly.
I always wondered, what does it mean for a program to be a page long? I guess you're referring to a printout of the code on A4 size paper in some fixed 10-point font?
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It does describe a few of axes of your personality, but it's not that great. It's not like they are really poles - you don't get many total introverts or extroverts, people sit on a continuum. A normally distributed attribute is a lousy way to categorize people.

Introverts are people who tend to think before acting (which makes them more shy), and extroverts act before thinking (which makes them less shy), but those aren't the only factors in social adeptness. A polite introvert who can make good jokes will have more friends than the extroverted class bully.

The main value of MB is that it's value free. It's easy to talk about introversion-extroversion, sensing-intuition, thinking-feeling or judging-perceiving; it's hard to say people are lazy-hardworking, boring-interesting, smart-dumb, or brave-cowardly.
Why should people be allowed to remove themselves from other people's lists?
Hey I was just curious about your experience, not really any "right" way to do anything. I'm an intermedaite rails developer at best and still wrapping my head around Ruby metaprogramming. Context was my goal.

You can throw your cards on my table any time, though. I don't mind.
Why Semantics?
Random speculation: Google put this feature in Wave to get some early feedback before including it as the default scrollbar behavior in Chrome OS.

I will most likely be verifiably wrong about this soon, but it would make sense given Google's strategy of testing things out in small batches before making it default. Why the comment about "mobile devices and netbooks"? Why Wave? They could just as well put these scrollbars in Gmail or any other Google product. It doesn't make sense to me, except if they want people to try it out and work out the kinks before putting it in Chrome OS where 1) the primary target is "mobile devices and netbooks" and 2) they can much more easily make that the default scrollbar behavior.
If it's 12', it better come with a touch pole to operate...
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I feel its the sort of thing where there are pros and cons, and really, convincing people to change the way they collaborate online is a lofty enough goal as is, without needing to change the way people use scrollbars.
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I don't remember the last time I used a vertical scroll bar - for me it's always the mouse wheel (on the desktop) or the right edge of the touchpad (on the laptop).
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Ive found task lists without a firm start and end date does not work which is why I add tasks into Google Calendar.

For the 'gadget' I dont think there should be a specific gadget as Google (docs/email/calendar/tasks/talk) has solved the problem of being tied down to a single device.

In saying that I have several netbooks, PCs and iPhones all accessing shared data within the google 'cloud' and I feel effective and productive on each device I use.
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I would know what NOT to do... Don't sell out with so much advertising that the site becomes unusable (myspace) and don't get too Orwellian because people may not value their privacy as much as they did a decade or two ago but there's still a line you can cross.
Wow. I have to admit, if you are correct and that is 1,000 extra paying customers in a day, I am suitably impressed. (Not that $2,000 will make or break large businesses but, hey, that would be five months of rent for me.) However, an article from their blog as of August suggests that there is a free beta version, and their web site lists a free SDK.

http://occipital.com/blog/

If it is 1,000 marginal sales, break out the party hats, but if it is 20 sales and 500 beta downloads and 480 SDK downloads...
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This is why I love the internet.
I personally really hate the scrollbar, mostly because waves can be really long and I like the feature of a normal scrollbar in that it represents the length of the scrollable material.
One of the reasons listed is that in the future they could add other indicators, but the native scrollbars can already do this. For example in XCode when you compile your code I believe little red lines will appear in your scrollbar at the lines that have compiler errors.
Hard to invent anything new.
I'm happy to see INTPs (of which I am one) neck to neck with INTJs. I took a software engineering class once that claimed that 80% of programmers are INTJ, and it made me feel like perhaps my temperament was a letter off for this sort of thing... but perhaps not, after all.
Talk to 18 of your future customers, ask them about their problems, ignore what they tell you and then ask what they were trying to achieve. Focus on the desired outcome, and the goal it leads to. If you stop hearing new things after 12 you have found solid targeting. Now you have technology on one hand and a worthwhile problem on the other, and you just need to figure out how to apply one to the other.

When staging your plan make sure to put important parts first, so ask your future customers which parts of the outcome they want the most.

So the first part is Listening, then comes Design, then comes the Iterative Loop.
I generally think so, but I was sitting at a table with my friends in a bar once, and we discovered that all of us were INTPs. The more different people are from my personality type, the more difficulty I have communicating with them. Sometimes I feel like we're not even the same species, as they offer me homeopathy for a burnt finger, or tell me they're psychic with a straight face.
At OpenX we're using Cassandra on EC2 and it has served our needs well so far. Our use case is a little different in that we set hard timeouts on the client side reads and can tolerate a small percentage of requests that don't complete in time.

According to Amazon the I/O depends on the instance type (http://aws.amazon.com/ec2/instance-types/) so the OP may want to take that into consideration when picking an instance type.
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I don't know much about the other types, but INTPs are the "scientist" type and as such are obsessed with data. We love polls. The demographic survey on HN had me salivating.
25 lines of 80 characters, i'd say.