skysight-inc/HackerNews huggingface dataset:
Sure, SF is merely masquerading as a world class city, by the people that live in the area. It has no grip on its elementary problems that actual world class cities have developed solutions for.

But you can have a good time there. Nobody will actually know if you live in an apartment and have startups give you free food everyday, or if you live in a tent under the highway.

Now if you are trying to earn enough to make a downpayment for a place in San Francisco.... thats not in the cards.
Based on what I've heard from colleagues that have spent extensive amounts of time in Central America, it's 100% spot-on.
> Similarly, note that filling in all three corners of that symbol is actually an equation. I'm also not aware of any other symbols that constitute entire equations on their own.

Multiplication and division can also be put into a triangle, such that filling in each corner constitutes an equation. See my comment [0] about the density equation. I suspect such triangles reflect some deeper relation of abstract algebra.

[0] https://news.ycombinator.com/reply?id=12138817&goto=threads%...
Ethanol is highly subsidised and reliant on petroleum and natural-gas fed processes. 40% of US corn goes to provide about 10% of motor fuel as ethanol, with a net EROEI that's very close to break-even -- some studies show a net energy loss, a few a slight gain.

At the turn of the 20th century, when horses were used for local transport, about 25% of US grain production went to transport fuel supply -- as horse feed. In Europe, historically, that value was closer to 33%.

Pricing these in terms of labour equivalents without mechanisation or fossil-fuel derived fertiliser and pesticides probably gives the fairest comparison.

Scaling biofuel production to present levels of petroleum consumption is entirely nontractable.

Biodiesel costs range from $300 to $1000 /bbl. That's 3-10x petroleum at its peak prices, and 10-30x its recent price of ~$30 bbl.

As an opportunistic adjunct to fuels, biomass from waste streams and some dedicated fuels production may make sense. At present scales of fuel use, it cannot and almost certainly never will compete. We'll either have to use far less fuel, or have far fewer people. Which may happen regardless.

https://www.reddit.com/r/dredmorbius/comments/2cvap7/the_int...
No memory allocation in ISRs unless it's wait free, really fast and impossible to fail.

Definitely no exceptions in ISRs. What would an exception really even mean in an ISR context? The "call" is done by the hardware, so there's no stack to unwind. Uncaught exception would practically mean system crash.

Stack usage should be low, because ISR itself might get interrupted by a higher priority IRQ.

ISR (interrupt service routine) needs to return as fast as possible, usually in a few microseconds.

On x86, no FPU or SIMD in ISR either, unless you save and restore the registers. You need to cover all SIMD extensions, current and the future ones. If you use SSE but don't save AVX/AVX-512 registers, expect very weird bug reports. Better to simply avoid.
Charger la batterie de son smartphone via un port USB peut s’avérer dangereux
Just because he's paranoid schizophrenic now does not lessen his experiences before his brain went AWOL. Considering he's dealt with some pretty hostile governments and government officials, I'd say the advice is pretty solid.

On a side note, when I was in telecom, My boss (who had been in the industry for 15 years) used to tell me about working for MCI and doing surveying and laying copper in several middle eastern countries. He told me some stories that would make the hair on your neck stand up.

He said it was an open secret that MCI was giving his team suitcases of cash to bribe officials and the military just to allow them to do their job. Stories of being pulled over at gunpoint, negotiating with military people and being able to talk through the process of a bribe was something he always maintained was part of the day-to-day survival game they played.
How hard is it to invert? e.g. given a set of points along a particular curve, how difficult is it to find the values of the 6 parameters that generated it?
Data Science, R and SQL (podcast)
The response lag can be ameliorated to an extent by having lots of work going on in parallel so nobody is blocked on one critical reply from someone in another timezone.

I've done remote development as an employee, remote development as a consultant as sole developer on a project, and local development as an employee working with other remote developers. IMO a lot of the issues people have come from inexperience with asynchronous communication.

I would argue that growing up writing open source with international teams, using IRC and email lists, not only has made me appreciate remote work better, but also gave me a mindset to understand asynchronous distributed systems better, too. But it's not an insurmountable advantage; I believe any team, if it cares enough, can work effectively with remote developers, and get the morale and cost benefits of doing so.
How much would it have cost to get an exit visa?
Unlikely - the founding editor of The Intercept is Glenn Greenwald, one of the journalists who published the original Snowden stories.
Mapping Detroit inch by inch
I did an 8months stint doing some data modelling at a Chinese start-up in Beijing.

Visa was difficult but company culture there really respects people who are experienced and innovative. Most the workers there aren't really passionate about what they do (From my understanding, most Chinese startups don't give equity to their employees)

English is a huge advantage as we have access to an awesome global community of people.

Pay is surprisingly good, but living cost in Beijing is deceivingly high as well.
> It's got some great culture if you're in tech.

Honestly, I find the culture of Silicon Valley's tech industry to be utterly degenerate. Even if the area was affordable, I wouldn't live or work there in large part because SV puts me off.

I work in tech, I'm LGBT myself (multiple letters of LGBT at that), and the Dallas area is pretty much everything I want in a city.

I honestly don't get why the Bay Area doesn't just expand outward. Sure, you can't go farther west because there's an ocean in the way, but what's stopping it from sprawling north, south, and east? I'm from Dallas, which has experienced booming growth for as far back as I can remember, and we've kept housing prices down without sacrificing suburban culture by simply expanding outwards. Nobody cares that none of the expansion is in Dallas proper; the locals here see each suburb as neighborhoods, not separate cities (albeit, neighborhoods with their own street signage and lane markings, but still). Not just housing; workplaces are moving outwards too. Hell, right now, I live in the burbs, and my workplace is in a suburb that's even farther away from Downtown from where I live.
There are plenty of expats in China. You could totally get away with not being able to speak any Chinese and still live comfortably in the big cities.
Try to use Trailblazer. Even if you would not adopt it entirely - it is really a great way to broaden your perspective.
An Editor is solely personal taste.
Like genius.com but for code documentation? :)

Edit:

Apparently they do it already:
http://genius.com/web-annotator
"teaching the youngest generation that white people are responsible for all the evils of the world"

That's a strawman. We had been talking about basic multiculturalism.

What you're talking about is the most unhinged versions of ethnocentric bigotry; say, the kind of thing Eldridge Cleaver had been associated with. These views were not widely proclaimed at the time and they are not widely followed now.

Even revisionist history (say, Howard Zinn's US history) that places significant blame at the foot of the U.S. and U.S. leadership for historical tragedies does not come close to what you're talking about above.
Truly, you'd want to pin rent as 25% of income and then have the height be related to where you would need to be on the U.S. income scale as a percentile to be able to afford it.

ie: You've got a $899,000 home sale, that's supposedly a ~$4000/mo rent, which leads towards a "25% rule" of $16,000/mo income => $192,000/yr => which is supposedly 93.9%-ile.

Going from $4000/mo => $5000/mo, it seems like it takes you to 96.8%-ile.
Judging from the other comments posted thus far, I don't think you're going to find any useful answers here.

The following link seems a lot more informative:

https://www.quora.com/Is-there-any-legal-way-for-internation...

If I had to guess: The OPT is extremely flexible - I know of people who literally sat at home unemployed the whole time. So I suspect it should allow you to found a company as well. If that goes well, and if you're able to raise VC funding, that should allow your startup to then hire you on a H1B, or extend your OPT for an additional 1.5 years.

But my main advise is to do a variety of google searches around the above keywords. That should give you a better idea of what your potential options are. Once you understand the problem space a little more clearly, find an immigration lawyer who's willing to do a consultation for ~$200/hour, and have them give you specific legal advise for your situation. Good luck.
> Currently, the superformula is patented by Gielis, [2] but the patent was withdrawn in 2006 because of the patent fees not being paid.[3]

I did not know you could patent a mathematical formula.
Show HN: F# Kafka client
Get a bespoke holiday itinerary for $10
Curious why you found out you needed an exit visa, rebooked, and came back without one. Were you just hoping you'd get lucky with the border staff the second time?
I cackled at the former, homeless vegan (or thereabouts) who started a shitstorm in the comments.
Brett Victor mentioned Apple experimenting with many futuristic interfaces, but not developing them further after realising they didn't work from a UI pov.

I suspect they may have similar feelings about AI. Many 'clever' systems which aim to predict what the user wants can be frustrating in practice. People prefer tool-like UIs where they can learn the mapping between their actions and the software's behaviour.

Personally, I think there should be more focus on AI augmenting human capabilities, and maybe Apple is working on something like that.
How....do you know this kind of stuff? Great read, thanks.
Very few places in the world pay as much as Silicon Valley, so I'm curious if your comparison with 'the US' is tech jobs in SF/NYC or tech jobs in normal places (i.e. 'not as highly paid' could mean 'only' $100k/yr for a devops position).
San Francisco is the second-densest large city in the United States (after NYC). It is denser than the Tokyo Metropolis (which, note, is not the Tokyo Metropolitan Area, which is less dense yet).

(NYC density: 10,831 people/km^2. SF density: 7,152 people/km^2. Tokyo density: 6,200 people/km^2)

Adding enough additional units to the city to make major changes to its affordability is not just a quick change to zoning laws. It's not just that there are height restrictions. If you made a quick change to height restrictions, you'd still find high density projects are expensive to build and prone to being blocked by the various other obstacles to building that a high-regulation city like SF has. And also, creating and funding big building projects takes time -- and there's a lot of pent-up demand for SF.

AND, if you did add tens of thousands of new dwelling units in SF in the traditionally less-dense areas of the city, you'd totally overwhelm the already struggling transport infrastructure of the city in those areas (and I have no idea about other infrastructure. Could the sewers handle this?).

Should we still lower the restrictions on infill development in SF? Yes. The restrictions are well past the reasonable. Will that in a short period of time make a major change to the affordability of the city? Not unless you hand-wave away the entire reality of SF.
It's not just math, but every other field as well. Notation has only become more succinct as the price of paper fell, so it's really programming that's held back by legacy limitations and ASCII.
I feel like the "infinite jobs" idea is too foundational to American culture to be completely removed. The very definition of "prosperity" includes having a job. The definition of "success" includes having a job.
This is one of the cases where I actually think this is a meaningful question.

The number of people removed from any positions of power in this purge is terrifying. It's a total power grab. It could even lead to the transformation of Turkey, from a secular state to an Islamic one.
It lines the pockets of everyone who purchases better, cheaper goods and has more money left over for other stuff. Everything we buy that's made abroad is made abroad because doing it that way makes it better or cheaper or both.
Number26 is now a true bank as it now has a full banking license
Show HN: How to build real time chat app with onsenui and horizon
a) Sensationalist headline - something that seems amazing to someone who is not e.g. russian - but the person is actually russian

b) Outing the photo of a cute 18 yo girl "who just got raped"

Yes - an interesting story - but this is extreme clickbait likely for profit. And problematic in other dimensions. This guy is an opportunist who does not seem to care about other people.
The strange thing about exceptions in C++ is that they make ubiquitous use of RAII a necessity, but at the same time they must not be thrown in destructors.

And then C++ exceptions don't come with a stack trace that makes quick and dirty exceptions based code so convenient in Java or C#.

I was never a principled opponent of exceptions, but I find myself removing them from more and more code the more thoroughly I think about all the possible error states of code that should really be robust.
No, the problem is misallocation of labor.

There's a huge to-do list of jobs that need to be done at almost every level, from design and build of significant infrastructure in most countries around the world, to community-level support work.

It would be perfectly possible to retrain the long term unemployed for all but the most difficult design and management elements.

They're not done because the metrics of Wall St deem them "not profitable" - which means traders can't make quick gains out of them.

Allocating labor on the basis of whether or not traders and stock owners can profit in the short to medium term turns out to be an unintelligent way to strategise an economy.
You can detect strong signals with current consumer technology. One easy pattern is the SSVEP[1], which shows up as a spike in the brain signal's FFT at the frequency of a flashing light that the subject is looking at. Interestingly, it also seems to work with binaural audio.

It might be hard to tell peoples' signals apart with the confidence of a strong password, but individuals do respond pretty differently in terms of how long it takes to appear, how quickly it grows, how much of a spike is observed, small offsets, etc.

[1] https://en.wikipedia.org/wiki/Steady_state_visually_evoked_p...
I don't think it's necessarily this easy. While I would say "yes" to the question, I already know that if I write a piece of crypto software, it will be used by bad players to hide their illicit activities, including governments hiding what they are doing to their population.

Similarly, almost all open-source software can be used by these bad actors. I doubt any of them write their router OSes, e.g. FreeBSD, but should I not contribute to that code because I know they are using it to suppress or track voices inside their country? Similar arguments for DNS or other tools that can be used to snoop on citizens.

Now, I would sign something saying I would not take a contract or money from them, but at the same time I think the US/EU sanctions actually already require that.

So how would we design it with these obvious caveats?
What if? You create them, of course. The f..king main reason that exists something called economy and polítics is to solve people's living problems, not to create stupid zillionaries.
> Ford produced 3.2 million cars in 2015 with 187,000 employees, about 17 cars per employee.

This is an awesome analysis. Do you happen to know the numbers for BMW, the most frequently compared "like" to Tesla that I've seen? (or a similar luxury company)
I feel like ancient civilizations a lot of times turned to art once their societies leveled off. Large structures, pots, roads, figures, clothing, etc.. I believe art is unlimited resource and we could have an economy running purely on art. Isn't a large portion of the economy already running off of art? Movies, games, tv, media, events. I actually feel there even a lack of art right now in terms of food, furniture, products in general. I'd pay for objects with more thought put into them, but there isn't enough people today to dedicate their time to art. With all these menial jobs taken up, maybe even more people will turn to custom crafts and trades. Where what I'm paying for is the creativity and uniqueness of the objects I'm buying.
I subscribe to The New York Times. Pointless opinion pieces with silly headlines written by second-rate pundits give me cause to worry about the future of the NYT Company.
>> "Just because he's paranoid schizophrenic"

Was this confirmed somewhere? I can't find any evidence with a quick search and I saw some of his interviews during the presidential campaign (he was running from the libertarian nomination I think) and he seemed ok.
I should have chosen my words to be more focused, I suppose. You can damage certain organs. You will not be cooking deep internal organs with an unshielded microwave. Not without cooking everything else.

Pretend my original comment ended with "Past that, you basically fell in a fire and it doesn't matter what is heating you." Is there anything wrong with that? Or the rejection of the idea that bone marrow is at risk?
People forget History.

The two times where labor was more valuable than capital.

1 | After the black death in Europe

2 | After the second world war

Most of history's default was the gilded age, the roman empire survived for 600[1] years with having worse inequality than in the modern times.

Usually the only way to reverse the trend is by a large scale elimination of significant portion of young people.

[1] EDIT : correction
Computer Science differs from the Medical field in that you never know what someone else might do with your work. In medicine at any given moment you know whether or not you are acting in the patients best interest. Doctors still make mistakes of course, but they still know their intent.

Now lets say I write a program to encrypt messages between two parties because their government is censoring free speech. Here my intentions are good. However, someone else could use that system to organize terrorist activities. It was never my intent but still it is my work being used to aid criminals.

That's where the line gets blurry. In medicine, actions have immediate effect. They either help or hurt the patient. In computer science the same program can be both a blessing and a curse.
This is a pretty poor example since Special Relativity is not 'exceedingly complex' and as a theory that explains things observed in the real world it's drastically simpler than a theory postulating unobserved aliens.
Got a high school dropout trying to play McNulty and be clever

oh well
Let's be real RoR is not about learning, or perfect engineering, or being easy to learn. It is 100% about being productive in industry.

"Put this file in this folder with this name and your app will do x".

"Why?"

"Because 10 years ago this file structure made a lot more sense and some people liked it so we stuck with it".
Linux is mentioned because it is a common server OS and Linux knowledge is the most helpful for web dev. OSX do not add any extra value to this aspect of knowledge (despite I do use OSX as desktop OS).
Some of the comments here are really missing the point.

antirez's original text editor was a full featured text editor -- meaning fully customizable (and fast!) syntax highlighting, and a very intuitive search feature -- written in pure C, with no dependencies, not even ncurses, and written in less than 1,000 lines of C code. And he wrote all this in a matter of hours.

This showed that fundamentally, a terminal-based text editor is trivial to build. Keep in mind, the text-editor market space is currently very sparse, with only a few real choices: Nano, Vim, Emacs, Notepad, TextMate, Sublime Text, and lately Atom, are the big players. antirez's work shows that, honestly, there's no real reason for the sparsity of choices. Writing a usable text editor is just not that hard.

And stevekemp's fork shows that it's still pretty trivial to add the kind of editor customization previously only thought possible in projects like Vim and Emacs. Think about it. Emacs came out in 1976! 40 years ago! But when people want an editor that's fully customizable, they go to that. Or to Vim, which, again, came out in 1991, 24 years ago! And trust me, setting up your environment so that it's actually usable, takes days to weeks.

Ironically, stevekemp and antirez's work, combined, shows that it actually takes less time to make an editor from scratch, than to customize Emacs or Vim to your liking! Granted, that's kind of a stretch, since most of us won't want to dive into implementing the concept of buffers.

More to the point than that, though, is that the top players in the terminal-based text editor slash IDE space, were written so many years ago, that the Internet was barely a thing at the time, that there wasn't yet a standardization on keyboards or terminals or even operating systems.

Things have changed. A LOT. It's time our terminal-based text editors caught up. But that doesn't inherently mean we have to start building everything on top of Electron. Terminals still work, and they're fast & efficient as hell.
"So this is how liberty dies. With thunderous applause."

This is history in the making.
I think if this were happening, people would eventually be able to tell by watching the network traffic. You may not be able to decode the network traffic, but if you run it through an analyzer like wireshark, while you say "OK, Google" and you see the bandwith increase, then if you see a similar bandwidth pattern other times you might have a clue that its recording. Of course that assumes they aren't saving to the disk and sending it later.
Ought to and can:

http://qz.com/631697/a-regular-inkjet-printer-can-spoof-a-fi...
I'm not sure but we know that the government invested into manufacturing. Perhaps Electronics Manufacturing was a byproduct that came from that? I think they're in a better position for the future if software innovation does slow down and hardware innovation continues to accelerate:

https://www.quora.com/Why-are-firmware-engineers-paid-a-lowe...

Software and Hardware is pretty fragmented now, and it seems its converging because of IoT and availability of cheap hardware.

In terms of noble pursuits: https://news.ycombinator.com/item?id=2763367
Cultures change. It can be painful, but eventually, it will become inevitable.
Pokemon GO: Unite NYC (Documentary)