skysight-inc/HackerNews huggingface dataset:
Oh hell, definitions of science. There goes the planet.

Arguing about definitions can take all day, since all definitions are true by assumption. Let's try and find out what's happening here.

Feynman says science is the belief in the ignorance of experts (in his talk titled What is science?). This is a fun start, but it doesn't really bring us anywhere.

If you look at the world from a positivist perspective, like Mach did, there is an objective universe that we are refining a model of. In this sense, it is the loop

while(model is not Truth):
collect data
adapt model to fit data

With this view, scientific models can claim to be superior to intuition in the sense of being an approximation of an ultimate truth.

A constructivist view, like what Hertz advocated, would be that we construct a model of the world that explains all available data. It's similar to the Machian view, but without the absolute truth. Here intuition can play a role, because any model that explains the current set of observations is right in a sense, and there is no partial order of rightness. Hertz stated that models of the world are to be ordered by correctness (how well they explain the data) and maximally correct models are to be ordered by elegance.

That leaves us pretty much where we started. The author is comparing data-driven decision making to experience and intuition-driven decision making. By Feynman's definition, one would place data ahead of experience. By Mach's, intuition is improved by availability of new data. The Hertzian view would be that data improves correctness and intuition improves elegance. When you are observing (or creating) something completely new, you have to throw away models and work from intuition and analogy. But that is just as data-driven, since the data tells you that it is outside the model. More data allows you to make better models. I don't think the distinction the author makes is all that valuable. Faced with a new situation, all you can do is work intuitively. That doesn't mean you should be ignoring your data, just the intepretations that your standard model has for it. Both elements are necessary for success, and all I got out of the article was that you shouldn't be ignoring data. I find that obvious.
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Yeah. I did and original Adsense test in October/November. It was a simple 3 page web app. The first was a sales letter, selling a database of hospital contact information. The second was a price sheet ($150 for an address list of all the hospitals in the US and territories) which clicked through to the third page, which was an email signup form, saying the person was interested in buying it.

I spent $100 on Adsense advertising over the course of a month, which got me around two hundred clicks on the front page, 50 or so clicks on the price page, and 6 email addresses. So, after doing that, I scraped the initial hospital contact list from several different sources, and I paid $500 to have a team of people in India verify each address individually. I then threw the address list up on Yahoo stores for a few months in February through May.

I think that a big part of the reason that I didn't make any sales was because of the economy. I don't think that people were buying much of anything this past winter. Why else didn't it work? I'm not sure. But, after 3 months, I decided to stop paying for the upkeep and take everything down.
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I find the condition in your loop hard to test. A more realistic algorithm would be:

while (model is not useful in the real world):
collect data
adapt model to fit data

The problem here is that "useful" is a quite low barrier. So for the second publication you also need to improve the usefulness of your model compared to the other models around.

That describes the work of scientists quite well.
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I don't think this post is that interesting since reason is a large part of science, but I do want to share some history on "pure reason" and how it blinded humanity for 2000 years.

Pythagoras was a great mathematician, but also a big promoter of "pure reason" and mysticism. The religious movement he started was called Pythagoreanism (-) and one of the stories about Pythagoreanism is that they discovered irrational numbers, but they hid their discovery from the general public, since irrational numbers did not fit into their "rational world view". Plato and Aristotle are successors of Pythagoras. Much of the western philosophy and religion is built on their ideas. For them pure reason (and belief) was more important and valid than reality.

How much did "pure reason" blind us? Johannes Kepler was largely inspired by Plato and Aristotle and believed for most of his life that the solar system was built by the five Platonic solids (-). And most of his life was spent on building a model for this. Kepler abandoned his idea when he saw Tycho Brahe's excessive observations and data.

Personally, I think the world would have been a much better and more different place if experiments, data and reality were promoted instead of "pure reason" and mysticism. The Ancient Greece had their promoters of experiments (for example, Democritus (-) [the father of atomic theory], but he was hated by "pure thinkers" such as Plato).

* http://en.wikipedia.org/wiki/Pythagoreanism

* http://en.wikipedia.org/wiki/Platonic_solid

* http://en.wikipedia.org/wiki/Kepler

* http://en.wikipedia.org/wiki/Democritus
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http://en.wikipedia.org/wiki/Pygmalion_effect
Another hypothesis is that people interested in something would click through in hope to learn more util you ask them to pay to continue. It would mean adsense demand testing inherently doesn't work (at least for some types of products / testing setups).

Someone could setups the following experiment to test it: after you build the product, split the traffic with most going to the product buy page, but with some percentage going to the original testing page that only collects email addresses. When a person gives you an email, immediately auto-reply with a link to the buy page.

In this way you can compare the effectiveness of demand testing at the cost of some sales (because you make some of your potential customers jump through more hoops). But if I went a couple of months without a sale I would try it just to see if my demand testing worked at all.
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Yes, if this was universally true, it would help employees negotiate. Employers sometimes claim that the goal is to reduce jealousy, but the public employees in states with this sort of law do just fine.
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Ask HN: do you think I should do this?
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The right there would be what we call a feature.
Just a question that popped into my head: why choose to release the product on so many mobile platforms? That becomes very expensive development-wise, whereas the most active platforms cover most of the target market.
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Nope, sorry. I just can't accept this. I've though about it for 10 minutes trying to convince myself that this is a pragmatic approach to a difficult problem but I just can't see it.

It's just poor management of servers. If you have a process that routinely leaks memory or stalls then manage that by restarting it & balancing it but rebooting the entire machine! This implies that you don't trust your OS to NOT leak resources (pipes, files, sockets, whatever) thus you need a new OS.

The 'excuse' that it forces you to build a scalable redundant system is bogus, it's folly.
I do not think that is gonna lead to something useful,
people can fall into "chinese syndrome" syndrome,
when a movie predicted what hapeened a week later...

Yet it is very chilling to read.
Which is madness that completely misses the point of proper immutable collections (Clojure style) - that you can "modify" them, by creating a new copy with the thing added, and it shares storage with the original and the copying isn't as slow as a copy-by-clone.

The first thing people are going to do with these half assed immutable collections is pour the contents out into a mutable container. Which completely obviates all the thread safety and whatnot.

I slap my forehead. Do these people have no sense?
Seems a little too specific at this point unless you have an interest in mayan glyphs or US road signs. I really can't think of anyone (other than mayan scholars) who would have recourse to visit the site regularly.

Perhaps a couple of examples on the home page to show people how awesome it is. Maybe a photo of a couple of tourists in London next to an old building displaying a heraldic symbol that your search engine can then identify. "This is the livery of The Worshipful Company Of Butchers. Founded in 1469..."

That would be cool for an otherwise dull page.

[1] http://www.butchershall.com/livery/
We're currently T -4 hours from the raison d'être.
A good middle ground is search rankings - users who are "looking for a job" have their ranking bumped-up on search results (shown to employers). Not to the very top mind you (too obvious!) - but enough to come ahead of non-lookers.

This way - the employers get a good result on their search for prospective hires and employees get plausible denaibility.
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It's a shame that this controversy has drowned out the original story: a guy thought to have been in a vegetative state turns out to have a normally functioning brain and has definitively communicated with outside observers (quite separately from the FC stuff). That, at least, is how I understand the following interview with the neurologist and coma specialist who is treating him:

http://www.npr.org/templates/story/story.php?storyId=1207843... [audio]

...assuming, of course, that the doctor is credible and competent (and not only relying on FC).

(I also noticed that HN's resident neuroscientist was downvoted for taking the story seriously.)
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Oh, good point, thanks! And built-in reader macros..

But really, even pure s-exprs are just one possible textual representation f an AST. Hell, XML is a valid representation too. Anything thats a representation of something follows rules as to how its represented and if it has rules, then its got syntax.

But.. you're right, arguing about the s-exprs part isn't going to get me anywhere. The Lisp weenies* will always believe Lisp has no syntax (blatantly ignoring the quoting operator which you mentioned) and nobody else really cares, so...

* I'm not trying to knock Lisp; I actually quite like Scheme and Clojure (and probably would like Common Lisp too, if I'd spent more time with it). I just think this whole "it has no syntax, yet I have to follow these precise syntactical rules" stuff is stupid. ;-)
Wow, there's a lot of confidential info in here. After just glancing over one 5 minute interval:

Joe_Brady@Mastercard.com||From:Joe BradyF.Y.I. - Ops is calling a PRT on a SAM (Settlement Account Maintenance) failure - This is NOT a network issue - Unix Ops is working this issue - They are looking to fail over to LKS

kfoxwell@lucent.com||Steve, I have an outage in Northampton, PA. They had a power problem and lost the CNI ring. 21,000 lines effected. call me at 717-227-0334. Kevin

appworx@db02.gefa.capital.ge.com||PROD Chain Fail for SITERICP Chain=OBI_MF_GL_P

300~MPfetchData:openConnectionToManager:ERROR CONNECTING:192.168.35.97 : www36 connectToServerPort:socket/socket timed out at /home/crdtdrv/creditderivatives/script/MPfetchData.pl line 342, <SOCK_192.168.35.19> chunk 178126.

monitor@ccbill.c|HTTPD Frontend front2r.escrub.co|ERROR: could not connect to front2r.escrub.com on port 80 (httpd). Timestamp: 20010911015701

kaccount.intel.com/service_status.asp Detailed message is URL: http://networkaccount.intel.com/service_status.asp ??does not contain: SFSA0005 SUCCEEDED

etc etc etc
More likely to be P than J too...
I knew there must be a formula but I totally just broke out a spreadsheet and auto-generated the sequence and then auto-summed it.

Math/brain fail.
I really like the idea here, but I've encountered a problem using it.

I think all emails from the service must be getting spam-filtered before they reach me. Because (a) I've never had an email with a settings link, like the one discussed on this thread, and (b) I've not been notified when my site has been down (which, recently, it has).

I know I entered the email right: when I enter the same email and URL, I'm told the URL is monitored for that email. And I can see your hits in my Apache logs every 15 minutes.

Obviously, my spam filters are not your fault, but they do create an annoying problem: (b) means the service is useless for me, and (a) means I can't cancel it! So it seems I'm obliged to take 4 pointless web site hits an hour forever (short of blocking you with iptables or some such).

One way round this might be for you to require people to click a link in a confirmation email in order to start monitoring, but obviously that does add a precious click to the sign up process.
Sometimes it is ok to have less than optimal solutions to get you past sticky patches. Is your goal to build a perfect beautiful engineering solution or to deliver a service to end users? However - you must recognise that its a kludge and that it needs to be sorted out as soon as possible.

The opposite of this is the "server that must not be rebooted EVER" (and if it has to be will require the whole engineering team -I've seen one or two of these in my time). Likewise machines that are rebooted every night soon turn into "that's the way we've always done it".

So - it can be ok to fix things like this sometimes but watch it doesn't become a cargo cult fix.
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How long before it needs to be charged. Your website is quite informative about the science but seems to leave out this basic operation information.
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I'd prefer to have people reading it from my website. Among other issues, this allows me to see from where it is being linked.
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For non-Java heads, (int) Math.random() generates a random double from [0,1) which is then cast as an integer (which means that it is always truncated to 0).

They probably wanted something like (int) (Math.random()*2) which will give you 0 half the time or 1 half the time.

Although it is still a really inefficient way to generate 1-bit of entropy (but sometimes it just isn't worth the trouble to instantiate a Random object, so I guess I could look past that ...).
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Interesting, but do we know that these messages came from a reliable source?
It can be turned into a fun hobby where you can also learn a lot about people interaction.
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Well, that was the joke, it was a play on while(True). It's an infinite loop, because you can never detect truth. And neither Hertz nor Mach said anything about usefulness. Also, I wonder why I can only think of physicists when thinking about definitions of science.

The work of a lot of scientists today can be described by

while not tenured:
publish
bully others into citing you
if you have time:
do a bit of empirical work
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Hmph - second hit is in the OpenJDK code. I guess the author forgot to include braces and so randomDelay() always has a delay of 0.
This is terrible. Also, a great way to get high scores in games that use it.
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While I, as well, agree that this may well not be HN-worthy, your usage of "Freedom of Speech" is silly. First and foremost, the concept of "Freedom of Speech" has no application in a private forum. If HN allows free speech, it does so willingly, not because it needs to. In addition to that, freedom of speech does not mean that your words aren't allowed to be judged. People often forget that freedom of speech means the freedom to offend and be offended, and both sides are able to say what they want. In that way, voting is a form of 'speech' as well, it's just not textual.
I think that too and I get a full 8-9 hours of sleep per night, but I can see your point ;)
Ask HN: Help a webcomics player developer by having a comic strip made for you..
Hello,

As well as trying ot be a webcomics author, I am currently developing an innovative web application and a file format for an opensource player for web comics (BD or bandes dessinées in French).

In order to go forward I need 49 more participants who would like to have a free custom webcomics on their blog to illustrate one of their post.

The reason why I need you is because I need to build those comic strips from scratch.

I could do it with my own stories but that would not prove anything. What I need is pages that already have been published and already have an “internet history".

I could pick up the pages by myself and if nobody shows up that what I will probably do.

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Claudio Stampi tested all the various forms of reducing sleep and found polyphasic - the uberman style - to be the best out of them all.

At the same time, he found that polyphasic sleep results in poorer performance compared to normal sleepers. And this was considered non-noteworthy, since obviously 2 hours of sleep is worse than 8. You can find his articles on Google Scholar.

Steve Pavlina is the only person I know of who has claimed to be polyphasic for an extended period of time and claimed that there is no performance decrease. Unfortunately, Steve refused to do any scientific testing and relied entirely on his own subjective judgment. He gave it up after 6 months anyway, but still maintains it is effective.

Steve's Pavlina's experience however exactly fits in with the best scientific understanding of sleep (which Wozniak perfectly elucidates). Steve Pavlina was never able to maintain the schedule without an alarm clock, which indicates that his body did not adapt and was not co-operating or behaving in a "natural" way.

The theory that Steve was only getting REM is shot down by his own journals which indicate that he was getting both Delta and REM. My own experience with polyphasic also indicates that while the proportion of REM may increase, you still get delta sleep. I was fully (and rigidly) polyphasic for some weeks but never stopped having delta sleep. I also consistently showed decreased performance that could only be overcome by surges of adrenaline and autonomic excitation in general - which is easily caused when a loud alarm clock wakes you up when your body desperately desires sleep. You are tricking your body into a state of permanent fight or flight.

Anyway the studies were done in the 80s that directly measured performance. But in the modern day extensive studies have been done on sleep and everything we know about sleep now shoots down all the theorizing that the polyphasics use to justify their crazy. The idea that delta wave sleep is useless has been utterly rejected because it has been shown that delta wave sleep contributes to long-term memory encoding. If you cut down on delta wave, you cut down on long-term memory. If you cut down on sleep in general, you cut down on cognitive abilities in general.

This trade off may be worth it for some people, but they should be aware that it is a trade off. Magical thinking like that displayed by Steve Pavlina does not magically make you immune from the negative side effects of sleep deprivation. You get over the drowsiness with sheer strength of will and adrenaline, but the fogginess doesn't go away. (Steve considered the fogginess to be a benefit. But remember this is a guy who believes ghosts tell him how to win at blackjack.)
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