skysight-inc/HackerNews huggingface dataset:
The topic is HN being critical of authors suggesting that regenerative braking is a net positive.

I suspect that in both the NYT article and in this CR article, the author is mistaken about the role of regenerative braking on fuel efficiency, but they are not incorrect to point to regenerative braking as the enabler of improved fuel efficiency.

Some made up numbers to illustrate the point. I do not know if these apply to the Model S specifically but do apply to other vehicles with regen braking, familiarity with which is likely to have influenced the authors' explanations.

City driving vs. highway driving:

Lower drag: +20% efficiency

Lower engine RPM: +20% efficiency

More stop and go with normal braking: -50% efficiency

More stop and go with regen braking: -50%(.6) = -30% efficiency

= Net city driving with normal braking: -10% efficiency

= Net city driving with regen braking: +10% efficiency
this process trigered after 4 days is called ketosis. r/keto has all the info you need
What It's Like for Astronauts to Sleep in Space
Suppose you're going to live until 90. That's 60 years of retirement. Suppose you're given up on the whole materialism treadmill and are willing to live close to the poverty line, say $25000 per year. That still works out to $1.5M. How many people even make $1.5M by the time they're 30, even before taxes? And that's to live more or less in poverty.
Just in context of the subject, I bet there is an app to measure how burned out you are on apps.
Is that true or is it just a shift in culture where people blow all their money on crap they don't need, disposable convenience, and live a more "up-scale" life style instead of saving for retirement?

Yep! Maybe a $25K car and a smaller house is better.
Thomas Szasz was writing good books past 90.
This would be ideal. I hate running into pay walls as well.
There are good reasons for both of these choices.

USENET was a taxonomy, at least in principle, although like any taxonomy of thought you ran into cases like sci.foo.bar and alt.foo.bar fairly often. A taxonomy should be read from general to specific.

Email addresses are addresses. The metaphor is a geography, which goes from the specific to the general.

Then we have URLS, which go from the specific to the general, hit a slash, reverse direction, and then explode into a bunch of hacked-on features.
Wait.. we have a senior source control manager and we are using TFS. Sometimes clicking through the gui based wizards to merge two branches is to difficult for C# devs these days. His expertise in right clicking is truly remarkable. I fear for the day we move to distributed source control.
Any second wasted to popularity, either seeking it, or decrying it, is a wasted second. Enough navel gazing, create some lasting value and reap the rewards.
Anyone can retire comfortably and even early, sure. Retiring at 30 takes commitment most people aren't interested in making, however. And of course you have people like me who have no interest in retiring until I have to because I'm crazy enough to love what I do.

But regardless you can't deny the fact that with wages decreasing over the past 20+ years in comparison to inflation, it is absolutely more difficult to save for retirement. Regardless of your financial choices, if you have less money after spending the minimum require to sustain yourself, you will have less to save for retirement. That doesn't mean it's impossible to retire, just more difficult. Perhaps you used to be able to have a pretty nice house and car and still be safe in retirement, and now you have to drive a cheap used car and live in a more modest home to do it. There are more sacrifices to make...

I think the current working generation is going to have a difficult time too because a lot of us have seen our parents grow up and retire with ease thanks to pensions. When you witness retirement as being a pretty simple thing with no real money concerns it makes it unlikely you're going to sit down and really think about how screwed you might be. After all it was no problem for your parents. Yet when it's your turn and there is no pension and your social security payout has been cut to 70%, well, things are going to be rough.
What sort of things do you have the folks on ODesk doing? Support, editorial..?
Obviously, because it simply doesn't work as it should.
There are a good number of people which aren't fiscally responsible, only taking action when it reaches a level of crisis.

BankRate.com did a survey a while back... http://articles.chicagotribune.com/2012-06-25/business/chi-2... ... that showed some interesting numbers in terms of emergency funds (28% having none, only about 25% having the recommended 6 months). Half of the respondents indicating their net worth had no change year over year? I can cite far too many anecdotes that could corroborate that, across the age spectrum.

Personally I've stuck to the 50/30/20 rule of Needs/Wants/Savings for about 6 years. Now that's shifting more to 30/30/40 as my income has significantly increased while my "monthly nut" hasn't really budged. I have about 2 years of living expenses in my emergency fund, only because I watched my father go for 2 years and 3 months without work between 2003 and 2005.
This is so misguided. Death is natural selection at work. Different species have different lifetimes because their lifetimes have been tuned to their ecological niches.

Advocating an "end to aging" is indistinguishable from eugenics -- the idea that we can choose the "best" genotype and that the outcome will be in any way desirable.

On a practical level, imagine if people could live forever, but show the same mental ossification with age they show now. Imagine a world in which Roy Cohn lived forever:

http://en.wikipedia.org/wiki/Roy_Cohn

To me, a perpetual Roy Cohn would more than erase a perpetual Mohandas Gandhi.

Nature knows a lot more than we do, and she's in charge of this issue.
To meet the FCC’s Gigabit Challenge, cities will have to get political
I think he means to extinguish the notion that placement could be based on any kind of merit.
I think this is just a market correction. There are a lot of things that are "apps" that don't really need to be apps. (Almost any "reader" for a website, for example). Now that an app isn't a novelty, there's going to be a natural backlash to things that we don't really need.
I'm not sure that someone hacking the Chinese would be offered a job. The case of Shawn Carpenter (http://en.wikibooks.org/wiki/Professionalism/Shawn_Carpenter...) pertains here. He merely got in big trouble, but the CFAA probably could have been brought to bear on him.

I don't disagree with you about the moralizing, fingerpointing and games to fill the Cold War void.
Show HN: django-zcapi - Zero-config API for Django
I made this to use when starting a Backbone or Angular project. It quickly gets a server-side API up and running without having to write a ton of code.

It's not for production use, but I'm sharing in case it can save others a bit of time.

https://github.com/tonyblundell/django-zcapi
Spam filtering? Security updates?
Your paper shows that some of them do. In all four tables (age/sex subgroups), the top quartile includes France, Belgium, Austria, and Switzerland, as well as South Korea. Germany is in the top quartile for females.
He meant left to right. It was a [fixed]mistake in the article.
I didn't go to MIT. I think Automata and Combinatorics were two of the more interesting and relevant courses I've taken. Calculus is enlightening but I've yet to find a use for it. I think Probability is important too. "Math for CS" aka Discrete Math is good. If you're into graphics I guess Linear Algebra is helpful but I've never use that.
http://www.imgur.com/njew43E.png

:-(
That's because it's not possible to make money with email clients.

And this is just Sparrow 2.0.

There's no way for these guys to make money. The only option is an exit, which is why it's a free product.
In terms of SaaS, we use:

github (code review is the killer feature)
campfire
jira + greenhopper (no killer feature :-( )
notableapp (so-so interactions with our designers)
balsamiq (quick & easy mockups)
crashplan (easy and cross-platform backups)
google apps
google analytics (we have a crazy setup)

I am currently looking into splunkstorm for our log analysis. We are using monit and mmonit (on premise) for alterting and monitoring.

For my open source projects, I use:

github
travis-ci
sourceforge (for the mailing list. any suggestions for alternatives?)
TED Talks: How great leaders inspire action
Thanks for sharing the tips. Will give email another attempt soon, and maybe write something up
Sure, it's not the 'same as' SOPA, nor is it SOPA renamed/resuscitated. But CISPA shares an aspect giving law-enforcement new powers that may be expansively used, without judicial hearing, against anyone identified as a 'cyber threat' or engaging in 'cybersecurity crimes'.

And CISPA does this via a similar mechanism: broad immunity for those non-governmental service providers who 'voluntarily' do what law-enforcement may only informally advise. That's an elastic clause that can look innocent in the text but be nasty in practice.

So there are enough similarities in mechanism and feared effect that analogizing it to SOPA is within the bounds of fair discourse. It's the same approximate way of speaking we see ins headlines that say "Mexico is the new China" or "Facebook is the new Google"... similarity in an important aspect, not all important aspects.
Right. The problem might not be technological in nature, but some potential solutions are.

I, for one, find myself energized. Too often I get lost in the micro-problems of tech & software, and forget that there are larger fish to fry in this world.
Back in the early 80s, UUCP formatted addresses such as bigvax!foobox!user where more common than user@box.network.

https://en.wikipedia.org/wiki/UUCP
Regulations are set by the card brands, not the gateways. Here are Visa's requirements for merchants that want to accept their cards:

http://usa.visa.com/merchants/risk_management/cisp_merchants...

Requirements scale with processing volume, and are generally minimal for merchants processing under 20k Visa transactions annually.

Many gateways use tokenization to dramatically reduce PCI scope for their merchants. It's fairly standard, actually. Even with tokenization, merchants have compliance obligations. The required network scans, for example, protect consumers from merchant websites being compromised ahead of the tokenization step.
This is also consistent with confused people not becoming customers.
> The difficulty is that you need anti-biotics for modern mass production of livestock.

Shouldn't we then just stop "mass production"?
I don't see anything adding up here. It's always been known that Bungie was working with Activision, and it's been known for a long time that Destiny was sci-fi. The idea that this is Blizzard's major product of the past few years and they'd forgot to take any credit seems weird.
I assume this is so the community can at least have the discussion, rather than him being downvoted into oblivion by the same folks who upvoted the this article to the top spot.
I would be happy to contribute to such a project, however security is not my domain and I am therefore ill-equipped to take the lead.
Indian Mafia
So did URL get designed backwards then? Should we have cerf@example.com instead of example.com/~cerf?

id=5236146?item@news.ycombinator.com maybe?
thanks spo81rty. I agree with what you say and hope they focus on unifying the experience similar to what iOS-OSX have.
Pretty much this. This article actually had good content, that I enjoyed reading, instead of yet another random blog post "Why I like/dislike X" or something in that vein.
The same thing could be said for any VPS provider.
It is my host. I don't need all the log noise. I am taking the same standard precautions on the higher port that one is supposed to take with the default port. Why should I care about your workflows over mine?
Yes that is my conclusion as well. I think you misread it.
This has done the rounds a number of times, and thus it was inevitably what was brought to mind upon reading "Forth Warrior":

http://globalnerdy.com/wordpress/wp-content/uploads/2007/09/...
Sorry for the downvote, but a lot of design advice coming from Google is like jedi hand waving. Of course there are standard resolutions and screen sizes, especially when you use dp instead if dip.
Securing your network / software is perhaps non-obvious, and doesn't always make the lists.

Example: you're not keeping the server up to date, and someone injects Javascript into your payment page. You could be liable.

As I understand it (admittedly not well), PCI is kind of like HIPPA/OSHA, in that there's some explicit no-no's (e.g. not using SSL, leaving patient info lying around, or not wearing hardhats) but the more important point is about maintaining a "culture of compliance".
> Yes, it's mostly children.

[Citation needed]

For anecdotal evidence, you can look at the number of "my [husband/wife] made this in Minecraft" posts on Reddit and so on.
I should prefer something I never heard of because it charges? None of the alternatives charge for services?
The nominal value of GDP is intimately related with the velocity of money, and that in turn depends on transactions; the more of them, and the higher their value, the bigger the GDP. The longer money stays in anyone's pockets or bank account before being transferred elsewhere, the lower the GDP.

Nominal GDP would definitely fall when people move their time "spending" from labour transactions (i.e. working hours) that add to GDP, to spending time instead. So if you measure economic activity by GDP, this alternate working approach would appear to "collapse" the economy.

And the degree to which people who make desirable "stuff" also subscribe to this new lifestyle, the more expensive that stuff will become. Supply is reduced, therefore the price will rise until demand falls and supply rises (because the price is higher) to match one another. In effect, a population following this approach will have lower purchasing power for desirable stuff than a control population stuck in the rat race. Or to put it another way, they will be poorer, and may suffer from envy.

So IMO the approach is currently only realistic for a certain subset of the population - those whose labour is valuable enough - and hopefully doesn't spread to factory workers etc. Ideally factory workers will be replaced by robots, so that we no longer have to worry about using up human lives to feed the "stuff" production machine. (By factory workers, I mean everyone who makes commodity (not bespoke) "stuff" you can touch.)

But I can certainly see a future where unskilled labour, and a lot of skilled labour, is done by machines. A capitalist economy based on scarcity won't work so well then; democracy won't stand for it.
Computer games (non-independent) seem no longer target ALL gamers. Instead every one of them is targetting the largest subset of those (those who like shooters).

Everyone else is kept in the cold. No games for us. This is a nice tactic but terrible strategy, games will only be seen as a stupid and shallow thing for teenagers and they'll not have the next audience once those get fed.

The same is happening with action movies (most of non-independent movies actually).

Yeah, there are also MMOs but they shut off most would be gamers too.
As I interpreted it, it's a diagram of a lab falling through a horizon, as viewed by someone at rest with respect to the lab. The horizon would be a plane traversing the lab; thus the horizon is drawn correctly. The singularity would be in one direction perpendicular to the horizon, whereas the escaping particle would be heading toward infinity in the opposite direction; thus those are drawn correctly.

> that direction is supposed to be the inward radial direction, but that direction is a timelike direction, not a spacelike direction.

It's an inward radial direction according to the diagram. The "but" part of your sentence doesn't offer evidence to invalidate that or otherwise show a problem. There's a coffee mug in front of me now. Regardless whether it's a spacelike or timelike direction, the mug is in that direction. Likewise to someone in that frame X the singularity is definitely in a particular direction. I'm not seeing a problem with the diagram.
The change of work:life balance...
It's amazing to see the path Bungie has traveled. They made a couple of Macintosh games in the early 90s, then had a breakout hit Marathon in 1995 on the Mac, back when serious gamers played Doom on the PC and laughed at the Mac (maybe they still do?).

When I was a kid with a Mac, wanting to learn to program games, I read this interview over and over: http://marathon.bungie.org/story/jasonjonesTofTMPG.html

I had to read this again to remember that the original Marathon game had taken three developers a little less than a year.

And on re-reading it, it's great to see how much solid, long lasting advice there was in that interview.
What about old pictures of yourself, family, or other keepsakes?
As we all know security through obscurity only buys you time like the article points out. Please correct me if I'm wrong but a pretty simple solution exists here. I run SSH over port 22 and do the following which I think is a pretty reasonable and safe solution (again, please correct me if I'm wrong):

1. Configure a decent firewall, edit iptables and disable anything you aren't or don't plan to use.

2. Disable root login completely.

3. Install fail2ban just in case and set it to block IPs of failed attempts for 2 to 24 hours

4. Use key based authentication and disable SSH logins using passwords altogether.

I'd recommend going a step further on number 4 and put a strong password on your key. A lot of people believe that key based authentication in and of itself is enough but if you somehow leak your keys and there's no password on them then an attacker has just easily gained access to your machine. Now I'm guilty of not using a password with my keys because like a lot of people it feels like it defeats the purpose but you can actually set things up so that you only need to enter your password once and it won't ask you for it again for a while just like the sudo "grace period" which lets you sudo without a password after you've entered it once. I do plan to give my keys a password and stop being so lazy in the very near future.

I know the Linode library as well as a few posts that have made it to the front page here explain how to do this. Here are the links:

http://feross.org/how-to-setup-your-linode/

http://news.ycombinator.com/item?id=4618808 (Discussion of the above which has some more helpful hints)

http://library.linode.com/securing-your-server
Thanks again. That's cool. I'll try to pass those tests through the algorithm (both python and ruby) and share the results somewhere - hopefully it will be a better test case then.

> If that's exactly what you see then the test is either flawed or it's not inclusive of all the frames which test this colorblindness

Yes - that's what I see, so maybe these samples weren't the best to start with. I took them straight off http://daltonize.appspot.com/ so assumed they are a good starting point...
I like some mix of the following:

- disable passworded logins (only keys)

- ssh bastion host

- decoy ssh honeypot on port 22 (http://www.plainlystated.com/2013/02/ssh-honeypots-dataviz/)
I completely agree... I'm hoping the Oculus opens up a new style of gaming that isn't focused on shooting and competitive gaming and instead centers instead around immersion and cooperative gaming.

While I'm known to play the occasional FPS now and again, I'm really bored of the format and want something new.
சீறிப்பாயும் அஸாத் சாலி  நேர்காணல் (ஓடியோ) - Ceylon Moors
Do linear algebra and stats+prob before getting into multivariable calc. You can probably leave DiffEq out entirely unless you're getting into modeling. Math for computer science is a grab bag. Graph theory comes up a lot but propositional logic never comes up.
Add one for error/exception tracking:

Ratchet.io (http://ratchet.io)

Private beta but public launch is very soon; mention HN for immediate invite.
SSH Honeypot attack locations - DataViz
> ... That still works out to $1.5M. How many people even make $1.5M by the time they're 30, even before taxes? And that's to live more or less in poverty.

The above analysis misses something important -- compound interest.

Without compound interest, yes, if you need $1.5 million to retire, then you need $1.5 million in advance. But if you create and then invest your nest egg, the math changes completely.

Consider an average return on investment of 12% per annum. That means if you only need $12,000 per year to live in decent poverty, you only need a nest egg of $100,000. In this scenario, to account for inflation, you must withdraw less than $12K per year and let the nest egg grow faster than inflation can erode it.

But let's say that stock market won't deliver 12% per year -- it hasn't been doing that for a while. Let's say a more realistic return is 8% from various investments. Let's also say we want an income of $50K per year for life. So we need a nest egg of:

50 / 0.08 = $625K

That doesn't seem too bad, or unrealistic. It requires discipline and a lot of advance planning. But it's entirely practical.

Now back to your original example:

> ... That still works out to $1.5M. How many people even make $1.5M by the time they're 30, even before taxes? And that's to live more or less in poverty.

Let's say we have that nest egg -- $1.5M. Assuming an 8% return, what does that give us per year?

1.5M * 0.08 = $120K

And guess what? You aren't under any responsibility to die when your money runs out, because it isn't going to run out -- at the end of your life, you still have $1.5M in the bank to give to your children.
There's a strong reason for advocates (like myself) for running ssh on non-standard ports: it reduces 99% of automated attacks and bots.

Yes, you could use fail2ban and ban half the internet, but that just clogs your filtering rules and makes your system waste memory and cycles. Case in point: one of my servers with ssh on port 22 had +9,000 denied IPs over less than one year. On a non-std port, ~100.

There's almost no drawback to using a non-standard port. Everything that uses ssh allow port customization (and I wouldn't trust something that doesn't).

> routers that prioritize port 22 as interactive traffic

Internet routers don't typically do any QoS (except to reduce the priority - bittorrent/etc), let alone prioritize 22. And within your own network, you have control over QoS anyway.

Also, I disagree with the OP:

>...those who have moved their main login service to a non-standard port pay less attention to their logs than the rest of us

I believe it's exactly the opposite. When you're used to carefully inspect your logs on an ongoing basis, you don't want to see it polluted by automated attacks.

Now when you use a non-std port and discover people doing port scans, you'd better pay attention...
Right, but the response to that argument is that most diet based health problems are slow-burning, chronic and painful.
Interesting. So "Lets not risk growth my premature monetization, like ads, which could repel early adopters." is often just an excuse to avoid income and thereby improve valuations?
Ask HN: Best VPS providers for fast scale-out
I am searching for a good , cost effective VPS provider. My main decision point will be how quickly I can spin up new instances (minutes is no good I need seconds). Any recommendations? THANKS!
Honestly I find it comforting that people who think that the solution to inconvenient addressing problems is more and different syntax haven't won the argument. :)
Also, shooters are exploration games, just with AI obstacles slowing your advancement.