skysight-inc/HackerNews huggingface dataset:
Presumably it depends on what "self-driving" means in the context of that particular car and what the laws are. Today, "self-driving" cars are legally just assistive technology like cruise control and you're responsible. If you have an accident while texting you're in pretty much the same situation as if your car didn't have those technologies.

Presumably at some point we have cars that can legally operate fully autonomously (under some defined set of conditions) and the driver would not be expected to be in control. In that case, I'd expect in that scenario there would be a lawsuit naming the manufacturer among others.
I know a guy whose personality changed completely, and not for the better, after he took ayahuasca. Be careful.
Quite right.

A set of interesting equalities:

(void*)&array == (void*)&array[0] // likely true
(void*)&pointer == (void*)&pointer[0] // likely false (although it could be true by coincidence)

A pointer to an array is the address of the first element.

The name of an array can be trivially and implicitly converted to the address to it's first element, but this conversion creates a (temporary) pointer, it does not make the array itself a pointer!

The array (nor it name) is not in and of itself storage for any such address, it is no pointer, and as a result &array won't give you back a pointer-to-pointer because there's no underlying 4-8 byte storage for the underlying pointer - there's no permanent pointer to point to.
Somewhat related: B&H, an electronics store in New York owned by Hasidic Jews not only closes its brick & mortar store on Saturdays, but its website as well: http://www.bhphotovideo.com/

Screenshot for anyone looking at this after 8:30 EDT today: https://i.imgur.com/XvZHDXA.png
Around the Corner: How Differential Steering Works (1937) [video]
To me the biggest annoyance is when phone connects to WiFi but doesn't open a browser to login or accept terms so it's just silently done't work at all
> IIRC, the primary drug in Ayahuasca is DMT, which can be acquired other ways (that are less likely to make you puke) than drinking their jungle juice.

I strongly suspect that with psychedelics, the context in which they are taken is far more influential on the kind of experience you have than the actual neurochemical effects. A sugar pill given to you by a man in a white coat and a soothing bedside manner is going to have a bigger effect than the same pill given to you by your next-door neighbor the handyman.

The service these fake shamans are providing can be of value even though the shamans are fake.
Yeah, but next time think of how quickly you'll be able to cut right to the work because of how organized your music will be!
Costa Rica powered with 100% renewable energy for 75 straight days
Indeed my Galaxy S5 has a checkbox to disable this feature.
It's working out great for those "developed" countries - they'd rather let people suffer from their inability to learn/work/live than give them something that works, even if it has side effects. The doctors must've taken the Hippocrites oath.
Possibly related: http://www.cnn.com/2015/03/21/us/brooklyn-fire-children-kill...

TL;DR: Tragic fire caused by a hot plate left on overnight so that it could be used to warm food on the Sabbath.
Perhaps I didn't make myself clear. Yes, that is my point, they fear consumers dealing directly with the auto manufacturers. If they dealt directly with manufacturers, it is implicit they would use a fixed price model like Tesla. That's what I mean by "undercut."

Currently Most people don't pay the same price. The price you pay depends on how much the sales person can wrangle out of you. A fixed price from the manufacturer threatens the jobs and livelihood of car salesmen.

I am not defending the auto dealers. I am a Tesla stock holder. I am merely pointing out their enemy's position. This is part of why the limit on the # of stores puts the dealerships at ease.
I thought this was a clear and nicely organized explanation of how a differential works, and neat given the age of the video.
Look, it even worked for your comment! Must be true.
On Windows (if you're not using Nagios), PA Server Monitor can do this for you.

http://www.poweradmin.com/help/sm_5_7/monitor_web_page.aspx

There really is no reason to be surprised by an expiring cert any more.
Disclaimer: I'm Jewish and religious, but not Orthodox; I don't worry about sabbath mode as I have no problem turning on an oven during shabbat; it's not work.

That said, if you ask Orthodox Jews, they will say it's not circumventing the laws about shabbat. Rather, it's keeping the laws of shabbat -- avoiding all forms of work -- while still living in the modern world. To circumvent the law would be to find a way that allows us to work on shabbat. Shabbat mode doesn't do that.
I worked on 100 of projects and my answer is by lowering the repeat cycle, which is done by test driven development "rspec" or other testing tools. The more detailed test the better but not too detailed. Also don't re-invent the wheel, use library that already exist, maintained and has community support.
Bulldozing small bookmakers; a betting system that actually works
Put yourself in my shoes for a moment. Consider, after a brief period of calling out someone for speaking positively about a hate group on Hacker News, coming back after moving on to find a directive to stop and a comment from a former Reddit employee and administrator calling for the thread to be censored.

I'm not sure what I did. If you'd like to follow up via e-mail, please do. I'm concerned.
The days of Rop, Paul and Cor are long gone. XS4ALL got bought by KPN and that was the end of that.
It's duplicitous of me to bring this up given all the other problems with this plane, but since it's a favorite topic of argument here, let's not forget the F-35's software is mostly developed in C++, and had been, in the past, touted as a triumph of C++ over Ada.
'The Complete Spectrum ROM Disassembly' by Dr. Ian Logan and Dr. Frank O'Hara, as published by Melbourne House in 1983

The fact that they could publish a book like that is a nice reminder of how much the environment surrounding copyright/IP has changed since then... try to do that with the BIOS/firmware of a modern system today and, the issue of it being many times bigger aside, you'd probably just get DMCA'd.

I suppose companies back then were just far more open about and approving of users knowing how their systems worked; there's a similar book for the C64 (http://www.amazon.com/Complete-Commodore-Disassembly-Peter-G... ), and IBM even published the BIOS source code for its PC.
This is precisely what the "trolley problem" aims to highlight, and why the question is interesting rather than just being answered "obviously you'll choose one death rather than five" by everyone.
Yeah, there are some elevators in Israel that do this on shabbat.
Half of these seem quite reasonable—prepare things ahead of time so you don’t need to work on the Sabbath. The other half seem like an affront to God by interpreting his rules literally and then trying to skirt them on technicalities.
Xidel – Command Line Webscraper
The problem with posting this on a Saturday is that any readers of hacker news that use these devices will be unable to comment.
If you want to measure giving a public presentation....have them give a public presentation.

If you want to measure their ability to pair program ... pair program with them.

If you want to measure their ability to mentor ... have them teach you something they know.

I want to know how you do X, and measuring X is easy, so please do Y as a proxy is never a good approach.

I have never, in my 25+ year career, ever had to whiteboard a problem, where the other person knows the answer (that is laughable - I've given correct answers and been told they are wrong), I don't, and there are hundreds of thousands of dollars at stake. It just has nothing to do with the job or on the job performance.
Also sizeof is different.

char a[20];
char *b;

sizeof a -> the size of the array (20)

sizeof b -> the size of the pointer (8 on my machine)
A bigger problem is that that book would need 3 cubic feet of paper to be printed. The ZX spectrum roms were tiny in comparison to the ROMs of say your phone.
Plowshare – Download and upload files from file sharing websites
I'm not religious, much less Jewish, but I'd say it depends on the intention behind the practice. If it was intended to encourage the abnegation of luxuries, I think the hacks would miss the point, but since the intention seems to be, as I understand it, to remember and celebrate the Biblical creation, I think it could be argued that the hacks actually help to reinforce that.

(Like I said, this is my interpretation and opinion as someone from outside. I make no claim to know or understand Jewish law and traditions.)
An interesting read, but it doesn't look like there's too much exciting or novel here. (In a fundamental sense, that is. I'm sure there's all kinds of interesting nuts-and-bolts engineering that outsiders aren't privy to.) TLDR: use a replicated state machine to make scheduling decisions, and make all operations on the datacenter idempotent.

The hashing trick to mitigate spiky load distributions is cool, but that seems to be more about multi-tenancy than reliability.

I'm disappointed to see this article perpetuating the misconception that Paxos is a leader election algorithm. It tries to elect a leader for its own purposes, but Paxos itself behaves safely even if the election process goes temporarily amok; other systems built on top of it might not. If you want to provide the guarantee that only one scheduler instance is running at a time, you need to add a lease mechanism and make assumptions about clock synchrony. I'm sure the authors know this, but not mentioning it at all seems pretty sloppy.
Well, being skeptical of an entire field of study is different than being skeptical of the predicted outcome. One often sounds like the other, and it is 99.99% likely that something is happening, even if we don't do a good job understanding it.

For example, regardless of "warming", we'll still have to deal with ocean acidification and all of the fallout from that.
We are a startup from Asia and what prerequisites we need to fulfill to get a chance in YC?
With the concept of strategic bombing being a moot point, replaced by unmanned guided missiles and our moral unwillingness to strike at population centers, the only real purpose of the Air Force is close-air-support. Even air superiority is, really, an adjunct to that role, in that it protects the troops on the ground against enemy ground-attack aircraft and provides cover for our ground attack aircraft.

Seeing, arguably, the most effective warplane of the last fifty years scrapped for an overpriced, ineffective boondoggle is sickening.
it isn't like there's "Google Chrome" and "Russian Chrome", everyone in the world runs the same software with global distribution channels. and if the solution is "well, we'll make software distribution tied to geographic regions" how well do you think that's going to work, especially when there's a dynamic of "if you can get the Chinese Internet Explorer it will have way fewer bugs than the American one, and you can diff the two to find the bugs?"
Sure:

(void*)&array == (void*)&array[0] // likely true

That is true by definition. The address of the first element is the same as that of the array, period. They cannot convert to different void pointers.
The notification that does this doesn't show up reliably for me.
I know a guy whose personality and health changed completely, and for the better, after he took Ayahuasca. Do your research, think for yourself.
5 Tips to Grow 10-20% Faster Than Plan in ’15 – SaaStr
F4X WORKOUT PDF: THE STEve HOLMAN and BECKY HOLMAN F4X WORKOUTREVIEW
In a more conventional usage scenario, your application is responsible for picking up updates from the changefeed.

You can see an example here of a node.js app using a changefeed to convey updates to the frontend through Socket.io: http://rethinkdb.com/blog/realtime-cluster-monitoring/

Though, of course, you can also build things other than web apps. Here's a simple IRC bot built with Go that also uses RethinkDB changefeeds: http://rethinkdb.com/blog/go-irc-bot/
> for people thinking "I'm too busy to spend an hour of my day exercising"

Arnold Schwarzenegger has a great quote here (paraphrased): "If the President of the United States has time to workout, _you_ have time to workout."
Creating Bulletproof SVG Icons
Aren't everything equivalent in C?
It is just inconceivable that we have a multi-decade program to develop a new fighter to fill all these roles, and what we've produced is either equivalent to or worse than the incumbent in all cases, is not safe to fly in combat situations, and is more expensive to boot. I mean we've seen this sort of thing happen on a smaller scale before, but versions of this plane are supposed to replace, like, everything in multiple mission classes across multiple services. Again, just inconceivable.

This article didn't present anything that we haven't seen before, though, and the excerpts from the unnamed pilot set off the 'totally out of context' alarms in my head when reading them. Maybe it's because I'm not involved with fighter planes in any capacity; for example, I found myself thinking that maybe the pilot is not supposed to actually be looking behind them in this plane vs. using video on their HUD or something, and that explains why the helmet and seat are not optimized for head movement.
Another interesting thing to know about pointer and arrays is:

#include <stdio.h>
typedef int a_t[100];

int main(void)
{
int a[100];
a_t* p = &a;

// all printed pointer values are equal
printf("%p %p %p %p\n", (void*)a, (void*)&a, (void*)p, (void*)*p);
return 0;
}
You can't decrease time by 4000%. If you decrease by 100%, it's all gone (you can make something 40x faster, in which case it's now takes 2.5% of the original, so decreasing time 97.5%).
NFL Lineman John Urschel Teaches Integral Vector Calculus
That's a bit of a defeatist attitude. I prefer to believe that bad decisions about our civilization's communications infrastructure can be reversed.
Similar experience with trubrain ( https://trubrain.com/ ).

Didn't notice a thing.
> The quality tours have trained medics in the village

Somehow I don't derive much reassurance from that. :\ I guess some people are just more comfortable rolling the dice with their brains than I am...
Does anyone else hate these tech headlines that begin "X just did Y." It's the inclusion of "just" that for some reason infuriates me. It seems to imply some degree of worship toward the company who "just" did this. Thank god! Our saviors!

Am I totally alone on this sentiment?
The F-35 is not a fighter, it's a diplomacy/pork program that happens to have the side effect of making something that (barely) flies.
From Data to Insights Using Analysis and Synthesis
What I don't understand is why the various services care so much about what the other services do or don't do. Why does the AF insist on managing the A-10 when they clearly do not and never have wanted it? The Army wants it, let them have it. We're obviously not that concerned with duplication or waste given how much money we've spent on this and the F-22 for, apparently, no gain.
There's also a new third-party Clojure driver under development: https://github.com/apa512/clj-rethinkdb
It's not complete yet, but it's starting to look pretty good.
No one, because God doesn't exist.
No you're not alone. The title is verging on clickbait as it doesn't tell you how they fixed it.
>* anything that "works" has a very pronounced psychoactive effect on the brain. Which is scary in the long-term.

What are you specifically talking about? What do you qualify as a "very pronounced psychoactive effect" "on the brain" and how is that "scary in the long-term"?

Please don't just make blanket statements without qualifying them to the rest of us. Show some evidence or reasoning to argue.
Actualy, you are spot on these are only PR stunts.
TerrAvion (YC W14) is hiring software engineers to grow aerial imagery service
I've taken L-Theanine with my coffee for years. The effect is subtle, but it's remarkable - I just look back over the last few hours and realize that I was distraction-proof.

I haven't dabbled in anything else because I don't really like the idea of messing with my brain chemistry too much. Theanine gets a pass because it's just an amino acid, is naturally present in green tea, and is considered extremely safe.

I'll happily recommend it to anyone looking to experiment without too much fear of side effects.
My mom just told me about that story, and when I came to HN I thought it had to be related that this made front page on HN exactly when this tragedy happened.
It's just another attention-grabbing trick. We take it out of HN titles when we see it.
Thanks for the report. Joe Rogan's podcast had me tempted into trying it but I'm glad I didn't!
Good for him.

I hear what's he's saying about the physical contact, and the feeling of dominating the player in front of you. My high school football coach use to say, on the football field you could measure yourself. You could see how tough you are, how strong you are, and if you have the mental toughness required to win. It's you versus the guy across from you.. There's not many chances in this world to test yourself like that. I think that's some of what he means when he says he's 'addicted' to the physical contact of football. I certainly miss that aspect.
As the blog post says, commercial support options and other services will debut alongside the 2.0 release. You can expect more details when 2.0 officially launches.
He'll regret it when he can't do math after he retires because of the encephalopathy he gets from repeated head trauma.
I'm reading "just" as a temporal indicator in that sentence. E.g., "Google Recently Fixed One of Wi-Fi's Biggest Annoyances" doesn't seem that off to me.
Sure, but there are no rules requiring that, which means browsers must treat all DV certs as the lowest common denominator.
I was prescribed Ritalin and later Adderall from 3 years old until I was 24, when I quit. They did the job they were prescribed for: I was focused. I found Adderall to be "cleaner" feeling, and it had less of a negative effect on my personality. That said, both of them made me much more angry and type A. There is no doubt in my mind now that my dosage was too high, but back in the 80s and 90s, I don't think anyone really understood what constant stimulant overdoses in children looked like. This stuff has irreversibly shaped who I am for better and worse. I can't really recommend either one to anyone unless they really need it.

On the topic of more accessible nootropics, I have worked with a number of the "racetam" substances, which tend to promote acetylcholine use in the brain. Because of this, all of them were taken with copious amounts of choline. I took Piracetam for about 2.5 years. It worked decently well early on at enhancing my focus, but towards the end, I questioned its benefits and quit. During that time, I also added in splashes of Oxiracetam, Aniracetam, and Pramiracetam. Oxiracetam is hands down the best of them all. It was made for hardcore analytical thinking. I used it primarily when I had exams or when I was more exhausted at work right after my daughter was born. It tends to tire the brain as it wears off and lead to some headaches though. Overall, it was a very useful tool Pramiracetam just gave me an instant headache the couple of times I tried it. Aniracetam is suggested to be more creative and anxiolytic. I felt a little calmer, but not enough to warrant consistent use.

Quitting caffiene was really helpful for me. I know that's close to heresy among developers, but I wake up feeling a lot less crappy.

Lately, I've been just taking Huperzine A, which acts as an acetylcholinesterase inhibitor. I feel like I get something similar to the performance of Piracetam, but without the need for the choline supplement to prevent headaches.
I use Armodafinil/Modafinil 4-5 times per week, cycling for a few days here and there.

I've considered a lot of others as well (e.g. *racetams - avoided on reports of 'brain fog' and a few of mental impairment - scary!). However, out of the dozens(?) I ended up considering, Modafinil was the only one I ended up deciding to try and ultimately take regularly.

I've read enough studies (and try to keep up to date) to know what our current knowledge about it is. In almost all of the studies, side-effects have been fairly standard (headaches, a few people getting sick, etc.). It's been used on-prescription for the past decade without seeing any uproar.

In the long-term, I consider the risk of unknowns worth the reward. Most evidence points to it being fairly safe, if not, that's a gamble I might pay for.

I drink alcohol to have fun, often to excess. I eat junk food. I actively choose to do a lot of things that shorten my lifespan for negligible returns.

If this little magic pill, which costs the same as a bottle of coca cola, makes me feel motivated and alert for 14 hours a day, I'm going to take it until I find a reason not to.
Bloom filters have false positives. Then you need some way to verify that a hit isn't a false positive, and whatever method is used for that will have the same availability problem in verifying a hit in the bloom filter as it would have in obtaining the revocation that way to begin with.
In other news your phone now includes an additional database which records everywhere you've ever been with it!
I don't understand the problem that was solved. Android devices can forget a WiFi network (long press the WiFi icon for the menu), manually select a network (same menu) and can disable WiFi and/or 3G. You never connect to a network you don't want to connect to.
I have taken Ayahuasca plenty of times and it has been an incredible experience for me thus far. Like everything in this universe there can bad sides to it, but with the correct people and when correctly brewed it can be extremely enlightening. What in life doesn't have a negative side to it? And when people say someone has been transformed for the worse after taking Ayahuasca what does that really mean? Worse for who? What's really good and bad? Stuff determined to be legal by a bunch of conservative males? I guess tobacco and alcohol are fine..
According to the C FAQ, Whenever an array appears in an expression, the compiler implicitly generates a pointer to the array's first element, just as if the programmer had written &a[0]. The exceptions are when the array is the operand of a sizeof or & operator, or is a string literal initializer for a character array.
This fails when two networks have the same name and different characteristics, and you want connections to be automated. It's frustrating when I accidentally connect to a poor network just at the edge of range.
I feel the same way about small amounts of psilocybin.
A lot of the more effective nootropics like semax, phenylpiracetam, noopept and cerebrolysin were developed by Russian pharmaceutical companies and are sold as regular pharmaceuticals in Russia. Why is Russia so interested in developing brain drugs? A lot of studies with these drugs are related to fixing brain damage from alcoholism.
Reuters Websites Blocked by China
Only references to Lecithin as a supplement I found were Soy Lecithin, is this it?
A circle jerk of academics salaried for writing useless things about a hypothetical situation.
I used to take a wide array of cognitive boosters during higher education and piracetam is one I know quite well personally. To make this short:

It works for some things (like reading for hours at a time) but it has made me sometimes feel "foggy-headed" and less productive/creative. The effects it has on my GI tract have been problematic at times (causing gas) and it tends to make my blood sugar crash at T+3. Plus with the massive amount of choline you have to take alongside the product, it became an inconvenience rather than an aid.

I would recommend sulbutiamine over piracetam if you want to "get things done".