skysight-inc/HackerNews huggingface dataset:
No, there's surely a point at which the marginal utility of additional liquidity stops justifying the expense of providing it. We may even be far past it.

But even if you stipulate that we are, it doesn't follow that interventions to suppress trading will do more good than harm, because we also know that prior to the advent of electronic trading, we had "not enough" liquidity.

Surely the current system is imperfect in many ways, and I'm sure Nash has something to say about the competition among market makers of varying degrees of competence.
I took l-theanine for a long time, four or five years, and with tolerance I don't know whether or not it still had any positive effect but that same concern for tolerance also made me too cautious to stop it and take the possible rebound.

That happened anyway for silly reasons and it took me a few days to realize that the serious and ever increasing neck pain I had been suffering for a couple years (and blamed on computer use) had simply vanished. It's been a couple of months and what had been chronic has not returned with even a trace.

There was no psychological expectation or placebo factors because I never had considered the possibility that they might be connected, the cessation was inadvertent with no intent and something I thought little about, and it was several days before I realized that I had been completely free of increasingly disabling pain for the same several days. This could be coincidence but I don't think so. Just sayin'.
You can use LVM to make the swap partition inside the encrypted container. If you don't want to use LVM, you can just use a swap file on an encrypted partition (but this isn't supported with btrfs).
4. As good as Ubuntu's latest version and its UI may be right now, anything other than basic stuff you want to do requires command prompt. Normal users who are not geeks can't imagine themselves doing that on a daily basis.
You're right, "contradictions" would be better!
Comparing things to the whatsapp acquisition tells you a lot. If it can be compared to $19bn, it's a lot of money.
yes natch you can do it through the contact form as well :).
Eh, cheap dig. We are under specific legal and regulatory burden to produce, proof, and provide our results for external audits, which happen regularly. QC is a substantial part of the costs of a new system. Thanks for the offer of guarantee, though!
I was curious about the RAV4 EV comment so some googling turned up this: http://www.caranddriver.com/features/throwing-money-at-elect...
The _government_ might not have a "hard" budget, as you mean it, but you can bet the IRS does. Congress decides what they get, and you can be sure it's barely enough to keep running as-is, let alone enough to put into future investments like say, an upgraded IT infrastructure, which then necessitates emergency measures like paying MS for XP support.

Work with government long enough and you'll find the majority of "waste" comes not from spendthrift government layabouts, but insane auditing and transparency requirements (which require oodles of paperwork and three people to review it to make sure you're not wasting taxpayer money), hamstrung budgets (renting the same building at exorbitant rates because Congress will give you the money for that, but not to buy it outright, which would be far cheaper; paying for continued XP support because you couldn't get the funding for an upgrade), hiring contractors for decades-long jobs, and a legion of other controls in place to save us from government excess.

I'm by no means saying that we should let them run around doing whatever they want, damn the cost, but keep in mind that auditing and transparency have a cost, and we need to look at what's cheaper in the long run and not just in the short term.
The real issue with hyperfocus is not so much being distracted out of it as not being able to target it. Sure, you can sometimes focus on something for 6 hours, but if it is the wrong thing, then you can blow through deadlines like nobodies business.

When I started on ADHD medications, the biggest thing I noticed was that I would worry more, and then actually adjust my focus to those problems.
Ask HN: What do you look for in a mail-client application?
Over the past few months I've built a console-based mail-client. Although inspired by mutt it is pretty different due to the user-interface, and the awesome built-in scripting which is provided via Lua.

The existing client is available from github, and is documented extensively on the website : http://lumail.org/

Recently I've been pondering splitting things up into a client/server model. Having a persistent deamon process, to which the GUI would talk.

This would allow both a console-based client and a GUI client to be constructed. Before I go down this road I wonder if there is room for another client, and if so what features people would like in local-clients.

I expect the obvious are .. obvious: IMAP, POP3, GPG, searching, etc, etc. But I wonder what I'm missing.

One thing that I've liked about the current client, which I think is almost unique, is the notion of opening multiple folders at once. But one thing I'm sold on is that the scripting support must remain, it is just too useful!
I might if we knew how long battery packs lasted and it was available now and not 7+ years from now when there'll be better cheaper options. So, I guess I agree. Optimistic.
Block the Comcast – Time Warner Merger
It is time for us to act; Take a position and stand by it.

I propose that we block the impending Comcast-Time Warner Merger.

Sign my petition : http://wh.gov/lvuPH

It is irrational to consolidate media access under the guise of robust regulatory control and our professed cultural ideals of freedom of access given the capricious interpretation of laws by the United States Courts. (http://www.nytimes.com/2014/02/20/business/fcc-to-propose-new-rules-on-open-internet.html).

Watch Senate Hearing and judge for yourself (http://www.c-span.org/video/?318477-1/comcasttime-warner-cable-merger).

If you watch the video, it is somewhat irrational to assume that cable prices for Comcast should rise substantially given an increase in content prices when COMCAST OWNS NBC (http://en.wikipedia.org/wiki/Acquisition_of_NBC_Universal_by_Comcast).

IN fact, we had this same argument in 2009 when Comcast bought NBC.

I understand the argument for consolidation and the benefits of efficiencies of scale.

But what we will see under our watch is monopolistic consolidation. And I am willing to refute proposed arguments for the this merger and elicit support to block it.

Sign the petition:
http://wh.gov/lvuPH

Democracy only works if we do.

Twitter:

#stopComcastTimeWarner

@alfranken
Alan Kay made an excellent point. In order not to dilute it, I quote him verbatim.

"The Internet was done so well that most people think of it as a natural resource like the Pacific Ocean, rather than something that was man-made. When was the last time a technology with a scale like that was so error-free? The Web, in comparison, is a joke. The Web was done by amateurs."-- Alan Kay.

Tim Berners Lee was trained to be a physicist. He wasn't aware of the things computer scientists had learned in the last few decades. He was a clever man who came up with a clever idea, but it wasn't engineered to scale.

I think Kay is right, and more ambitious tech firms are definitely running up against this wall. The fact that Google wrote a new Javascript engine tells me that Kay's proposal, where the web should have been like an operating system on which you could run programs in a separate address space and with limited access to underlying system calls - is coming to pass, except in this OS the assembly is Javascript.
Isn't it illegal to scrape without permission? How would import.io handle the case when a large site comes back with legal threats when a user of their site has used scraped the wrong site? Can they claim non-responsibility?

Also what happens when sites start blocking their IPs due to repeated scraping or is this unlikely to happen?
Also very useful is to see what you are committing with `git commit --verbose` or `git commit -v`.
Not exactly the same, but when they started I found them to be impressive in delivery speed, Berkeley/Oakland: http://spoonrocket.com/

(I am not affiliated in any way)
Does anyone know why the Net Present Value in the cash flow model is so much different?

Depreciation Model: $39,889
Cash Flow Model: $62,874
Breaking crypto systems isn't the same as breaking "into" systems.

The history of cryptography can basically be described as a series of assumptions which turn out to be invalid. This is either because they were never valid to begin with (and it just took time for problems to be discovered and shaken out), or because the facts on the ground change, making them invalid.

I'm not a cryptographer. I also don't really call myself a hacker anymore (because the loaded assumptions around that word make it useless as a descriptor, you wind up having to explain it in so much detail that it's just easier to start out with a different word), but I do know some cryptographers. They have all described the process in a similar way, which is you start by learning about the pitfalls of everything that's come before you.

Much like if you were learning to build bridges, you'd spend time learning about past bridges that didn't hold up.

So you start with the oldest crypto systems, and learn why those fell out of fashion. One nice benefit to this approach is that it makes it fairly apparent how brittle these constructions are. I don't think I've ever met a cryptographer who isn't suitably hesitant about designing cryptographic systems. Also, a good portion of the time spent as a cryptographer (maybe most of it? I'd love to hear a dissenting view from an actual cryptographer), is in breaking cryptographic systems (initially other people's, and than later, your own).

Cryptography isn't like web frameworks in the sense that everyone is making their own. New crypto systems (at least ones that come from cryptographers) don't spring up out of the ether every week.

One problem that seems to come up in cryptography is that cryptographers themselves "seem" to be mostly only concerned with the primitives. They leave implementation as "an exercise to the reader". This is a problem because I'd say that the overwhelming majority of actual security problems that stem from cryptography aren't problems with the primitives. They're problems with the construction necessary to do anything useful with those primitives. That's why when people heed advice like "Use AES" they're probably screwed.
There's been a lot of overly-confident statements about Heartbleed not being a big deal from apparently competent people these last few days. I'm not sure what it is about it that causes security professionals to spout off without testing their assumptions, but...
Honestly, if it is a budget stretcher, it is probably a bad idea to buy this, which is basically a head-mounted Android phone.

If you have a business idea, waiting a few months wikk cost you more than raising/borrowing funds now.
What format is the project-description in? Is it a paragraph, or more, of random HTML? If so you might enjoy the blogspam API:

http://blogspam.net/

It is used to blog forum/blog comments, but people have used it for protecting wikis from spam. (Disclaimer it is my pet-project.)
Guile? Really?
Marketing tip: "Linux user group" sounds boring and excessively nerdy, the kind of thing you can imagine pocket-protector wearing Dilbert engineers to attend. The mission statement is silly, Linux is not something to be advocated, it's a tool for getting shit done.
Williams syndrome is a CHROMOSOMAL disorder which has PROFOUND effects, not just on personality but on physical appearance. It isn't all that common.

Please don't diagnose your wife with chromosomal disorders based on her being friendly and anxious and bad at charts. Perhaps she has a learning disability, like tons of other people.
I've been using nicotine on-and-off, after reading up on Gwern's self-experimentation[1], in order to moderate my caffeine dependency.

I would probably use other chemicals, if the cost-benefit balance was good enough:

1. Easy to acquire - even nicotine gum is a bother to buy, compared to the various teas, coffees, colas, or caffeine drinks within a few metres of my desk.

2. Valuable - there would need to be a positive economic benefit, otherwise it would be a recreational chemical.

To think like an economist, the 'positive economic benefit' would provide $-amounts for:

3. Quality of Life costs - a smart-drug which affects your sex-life (e.g. Adderall) or causes me to lose focus on my health will have a high negative value.

4. Long-term Health costs - similar to above, except this is more of an expected-cost for (the likelihood of it causing long-term health issues) * (the negative value of those health issues). Not usually very high, but as the article mentions, not many of these drugs have had conclusive efficacy trials, never mind long-term studies of their effects. This one really depend on your personal risk-aversion.

[1]: http://www.gwern.net/Nicotine
Social graph app for tracking gang activity on Twitter, with the intention of predicting potential violence before it happens on the streets. According to Vice/other sources, it's becoming increasingly popular for gangs to communicate publicly via Twitter and other social media sources. It's an interesting NLP problem because Twitter language is crazy and an interesting "computational social science" problem because it could actually help communities. You could partner with (or sell it to) municipal police departments.
Not necessarily true. However the bigger concern is technology. The tech behind the batteries in a current generation Tesla will be probably one or two generations removed. Meaning, your going to get soaked on first generation buys.

Now Tesla does have swappable packs but the unknown is, how much will a replacement pack of second or third generation cost and will you be able to install it in the first generation car; I will assume you can.

The Tesla lower depreciation is factor of limited supply and the author is taking a mighty big bet that demand will remain as high as it is. Given Tesla's stated goals for manufacture and the models coming this is not a good bet.

Toss in that California may cap tax incentives to EVs costing 60k or less; I would push that to 40K or less. The rich should never have been given help to buy a car in a price range they already purchase in. This car certainly did not need the incentive.
> Comes across quite passive aggressive indeed.

Oh so what. Tone arguments are the least interesting arguments (he says, passive aggressively). In seriousness though, this is a blunt assessment from an expert in the field. The tone is entirely appropriate.

> No good deed goes unpunished.

Akamai strongly implied that their patch protected customers. If you make that claim then you need to be prepared to have the claim attacked. This is an issue of good will toward their customers - not to the Open Source community.

This isn't a case of "punishing a good deed", it's a case of "critically examining a provider's claim to their customers".
zoom you browser in 10% (ctrl+). i get this issue on a lot of personal blogs and this always fixes it to some degree
Well we know that Elon Musk has promised a buyback guarantee, indexed to the buyback cost of a similarly old Mercedes S class[1]. So that sets a floor on the depreciation value.

Also, as btian notes below, the electric drivetrain is also much simpler than a gasoline one, so it should be in much better shape relative to non-electric cars. I'm relatively optimistic because the part that depreciates the most is the battery: and if the rest of the car holds up well, then switching the battery at a lower cost (taking into account 8 years of battery tech advancement) should make for a pretty high resale value.

[1]: http://www.usatoday.com/story/money/cars/2013/04/02/elon-mus...
Glow in the dark highway
And something capable of doing an SSL/TLS connection with cipher sweet negotiation and client certificate validation?

Maybe throw in hardware token/PKCS11 support?
Lab-grown cartilage used to reconstruct nostrils
Having travelled much of Australia recently I'm aware of how many animals (especially kangaroos down here) are killed at night by standing on the road and not reacting in time to oncoming car headlights.

Wondering of there is any way this could help detract animals from standing on the road.

I've been playing with other ideas to deter them from being on the road, maybe playing with the smell or edging of the road but would love more ideas.
They presented last year at Yahoo!'s Hack Europe: London hackathon. It's an interesting concept, they've come far since their initial presentation and while the app has its quirks I have come to use it occasionally for some tasks.

I hope that they'll manage to properly monetize on this - I don't see why I should pay for using a scraping rule if I can just write the scraper myself which doesn't cost me that much more time.
I think you misunderstood what I meant.

I mentioned "free" only to point out that there is no financial cost to switching to it. I guess I did not type the sentence with enough care; words are missing. My apologies.

I imagine people would be willing (and are accustomed) to paying for software of similar quality.

But I'm also wondering why this bothered you so much.

Does it make a difference that grants were received?

Is the funding not transparent enough?

The blog article on OpenSSL mentions payments for consulting and "features" to be added to OpenSSL.

Should I be concerned about what those features are, and who is paying for them? Are you concerned?

I'm just nterested in cleaner code than OpenSSL's. NaCl looks cleaner to me.

Maybe I'm wrong. But I'd rather be compiling programs that use libnacl or some other simpler alternative than ones that use libssl.

We all have to make decisions about what software we choose to use, even if we are not cryptographers.

I see nothing wrong with discussing alternatives to OpenSSL. This bug has been a real PITA.
The www is fine. TBL shouldn't be blamed for the horrible mess that it turned into as people kludged it to do things stupidly and inelegantly.

Yenc binaries on Usenet are stupid an inelegant yet petabytes of stuff have been shifted around on Usenet servers.

Humans are creative and capable of trashing almost any RFC no matter how well written it was.
Interesting, again because of the parallels to autism. My son's therapist recommended a book called All Cats Have Aspergers[0] as a way to help him relate to how he sees the world.

http://www.amazon.com/All-Cats-Have-Asperger-Syndrome/dp/184...
> not evolving one bit for the next 6 years [...] would be grounds for moving to a different language

I'd never heard of Guile until you mentioned it. I looks like Scheme. If moving to a lisp-like language, Clojure, which you mention, would be a better choice. It's backers claim they'll be there for the long-term, and it has innovative concurrency constructs.

As for Groovy, it appears to be dying. Oracle went to a lot of trouble to create Nashorn, a zippy Javascript bundled with Java 8, and you can bet they'll be promoting it heavily in the "scripting Java" space to dislodge Groovy. Grails is losing adoption bigtime, getting replaced by Node.js, Play!, Django, and even Rails. When Gradle upgrades to version 2, they'll likely bundle some other JVM languages for their API, e.g. Nashorn.
If you don't mind sharing it, some additional information might give people more insight into what's happening:

- How old are you?

- What's your educational background?

- Are you looking for jobs in Silicon Valley startups or in other kinds of companies somewhere else?
In my part of Canada we do. Or maybe I should say did... until the snow plows got them.

I live in Prince Edward Island and they were put in in some especially tricky areas just last summer and already they are mostly gone. They were the type where they cut a little dip in the road and install them so that they are even with the height of the pavement and that didn't even save them.

The glow in the dark paint on the other hand would be a huge improvement and not susceptible to damage. Not to mention no installation required.
Thanks for that, that's the best formulation.
Are you running it in Chrome/Windows?

If so: Chrome's font rendering uses GDI rather than DirectWrite and it leads to some very ugly rendering with certain web fonts. This is a known issue and they are working on changing this: https://code.google.com/p/chromium/issues/detail?id=137692#c...
How to wear a lapel and tie pin
A mans guide to wearing a lapel or tie pin.
OK, sent (through the form). Didn't want to post it here because it contained a suggestion for registering a particular domain.
Wow, why are the big automotive companies so bad at making a good looking electric vehicle? Or are we just spoiled with the looks of the Model S?

From the article you linked to: "GM is reportedly losing more than $40,000 on each Volt" WHAT?
The fact the code is badly written and wouldn't run isn't even the biggest problem with it though - a bigger issue is that the author didn't appear to realise there were copies of the key they'd missed that weren't protected. They very likely made the same mistake with their production systems and their analysis of those production systems.
if you use scrapy (which is an awesome python scraping framework) you can plug a different third party solutions such as: http://crawlera.com/

Not really server level hosting, but you get the benefits of their network.
Nursing homes have to deal with blood and other bodily outputs - which means even if germ-free the sheets need to be changed because they're "not white".

(Source: My wife is a Doctor.)
Yes... I agree, there is a great deal of over estimation longevity of the drive systems and maintenance of the Tesla.

Electric motors are much less serviceable than gas engines at this point. There are still a lot of moving parts.

I think a tesla will lose value much faster than this person thinks as battery technology improves and the life of the existing battery pack declines.
Yup, I am. Thanks for the info.
If you compare the use-cases of Glass and Android Wear, the camera is essentially the only thing that differentiates Glass. Both are going for weather checking, quick message sending, notifications, etc.

I'm a bit worried that Google might decide not to release Glass unless new uses emerge. It's a shame, because despite the overlap in use-cases, it feels like they might be onto something that just needs a bit more time to bake.
For me, just because I'm programming doesn't mean I'm learning. I can make an entire site without learning anything if I do it the way I already understand. The real learning comes in doing things differently. Spending your time on hitting the things you don't know really hard.

You say a challenge from an employee will take you multiples of X hours? Then practice it. Keep working at things that are hard and eventually they will come together and get easier.
This reminds me of a project, that a group of us talked about, but never did.

I used to work on a radio system with a very large and powerful phased array transmitter, the ground mat being hundreds of metres on each side. We though it would be fun to stick a bunch of fluorescent tubes into the ground. In theory we should have been able to see the antenna beam sweeping across the ground mat, as it was steered in difference directions and the tubes lit up. It would have been a very cool demonstration, but like so many other projects we only talked about it.
New Hepatitis C 'Cure' Hailed as a Breakthrough, Costs $1000 a Day
I had exactly this in mind last summer and actually built something! http://curate.im - check it out. I had planned to add voting and collaboration functionality, but nobody ended up using the site so I gave up on it and it's just been sitting there for almost a year. It's not tailored specifically to systems organisation though. Enter the beta code HN001 if you want to sign up lol