skysight-inc/HackerNews huggingface dataset:
I'm an engineering student an I can say with property that, although I don't know much about Sage, a good symbolic math project (in particular Open Source) is sorely needed. It would be far from a curiosity. Most students use Matlab/Octave where I study, and all it does is allow for numeric computation. We've had huge advances in computing and it's been long since numerical integration was our best aid! More math heavy engineering subjects will often encounter large symbolic manipulations needed to arrive at some result, and common sense is that there's no good tool to help with that. Common sense is there is some limited symbolic manipulation in some HP calculators, and Wolfram Alpha, although it often refuses to work once you start playing with larger expressions.

I also know that some fields like ANNs (AI) research rely heavily on automatic symbolic differentiation, although I'm not sure the tools they use.
I disagree. First of all I don’t think any organization, including the Census Bereau, Pew, Gallup, et al have some kind of official definition of what “middle class” is. Second, by and large most Americans seem to identify themselves as being Middle class+. I think Middle Class is strongly associated with the American dream, and typically benefits like a vacation once a year, retirement, a home, and sending your kids to College are all mentioned as being a package deal of being Middle class.

I think the biggest 2 things that have happened that requires people to have a lot more money to be part of this “dream” is the complete dissapearance of the Pension and the dramatic increase in the cost of College tuition (in the 60s-90s, sending your kid to College meant supporting them a few more years, tuition wasn’t even really a factor). The Pension being lost is a double hit, because you lost the guaranteed retirement safety net, and you have to now save a huge portion of your own paycheck to make up the difference.

+http://news.gallup.com/poll/212660/middle-class-identificati...
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If you don't mind sharing, what were some of the biggest expenses you had leading to you living paycheck to paycheck?

I'm a Midwest non-tech worker. I live in one of the 5 largest cities in my state. It's very foreign to me that such a large income wouldn't allow you to feel financially secure.

A starting engineering salary in the area is ~65,000. 1, 2, and 3 bedroom apartments in my complex are $830, $1200, and $1500 respectively. I'm ~2.5 miles from work (7 minute commute via car) and <0.5 miles from a grocery store. Houses in the area with a really good school system are 200-400k typically.
X% of lifetime cost isn't meaningful without stating the lifetime cost.

What is the lifetime cost?
Xkcd explains orbital speed in a much detailed explanation.

https://what-if.xkcd.com/58/

The gist is that gravity pulls you. To go to space you have to escape gravity. Even if you go thousands of miles above earth, gravity will still pull you. To counteract gravity, you need to go really fast sideways.

When you spin a ball attached to a string, the faster you spin, the more the ball pulls the string away from your hand. If you spin it really really fast, the string breaks eventually and the ball flies away.

The string is gravity.
Don't most high-end cars have some kind of detector so they can tell if someone is sitting in a seat? Both seatbelt warnings and heated seats would seem to rely on this, so there's no reason why autopilot shouldn't as well.
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Is not getting a Nobel a 'punishment'?
How Strenuous Exercise Affects Our Immune System
Thanks for the report! Having difficulty reproducing this on my machine but will be running more tests on the website to spot issues :)
That's interesting and all, but it's been confusingly oversold by the headline and lede. That an object of this size has been preserved is interesting, but there's nothing particularly notable about artwork of that age. People have been carving and painting images for 40-50ky.
(Author) Last year I wrote a web app for practising Spanish verb conjugations called Verb Master. It got some interest on Hacker News (see here: https://news.ycombinator.com/item?id=14326166). I recently re-wrote it in TypeScript and improved load times and mobile performance.

It now saves your stats in local storage and uses them to suggest which verb-tense combinations to study. I also added a better game review with high scores.

Github repo: https://github.com/andycloke/verbly
The magic phrase for searching Amazon is "personal cloud" which turns up lots of 2TB-8TB NAS devices. The problem then is to suss out whether they support Time Machine.
That's the point, you can't have so many balances in so many exchanges, because, in that case, each return is going to be very small. Just to take profit on an ETH USD arbitrage, you have to have 25% of your capital in ETH and 25% USD in exchange A, and 25% ETH and 25% USD in exchange B. So, when you take advantage of the opportunity to buy ETH at low price on exchange A and to sell on exchange B, you are only earning an arbitrage profit on a 25% of your capital.
And that profit become less and less if you divide your capital into more coins and more exchanges.
Regardless of their reaction to it.. this line is key:

> "Fairness" is one of our guiding principles, and to that end we have pledged to "make every effort to gather responses from those who are the subjects of criticism." In this instance, that did not happen. The story referred to one individual as the "author" of a website that another person said had posted defamatory information about him. It also described the author's motivation as vindictive. But NPR did not contact the alleged author.

So NPR did NOT contact the author and then described their motivation. It's good that they retracted this article but how many times have they released similar articles with similar total disregard for the truth?
I do prefer the idea of storing it on paper... at least it's a little easier to lock up. Even a big camera will only take a few thousand pictures before it fills up, and physical access is a lot easier to enforce.

If we make 2 billion phones a year (Apple itself is just over 200M) and you have a line printer running full blast (66 lines = 1page per sec) you could do Apple with one printer... and the world in 10. It would be a lot of boxes of paper though... about a box an hour.

edit: to be clear I was assuming that almost every dot in the matrix was a valid bit and there were 66 keys per page... 80 or even 132 columns at 7x5 wouldn't be enough for 4096 bits otherwise.
In general I agree with you, but I doubt banks lobbied for stricter anti money laundering laws as a measure to stifle competition. They do get pretty much a free pass when they do break them unlike smaller entities though.
Thanks for adding pretty much the same things I wanted to say, but doing so better. Getting good at leavened sourdough takes time and practice, but it is absolutely worth the journey. There is a world of variety and frustration and joy and surprise in just flour+water+salt and whatever wild yeast is in your air.
I'm not sure how these "language models" perform. I went to the Bosnian model, but for some reason I got a demo that could analyze Danish? The site does not mention anything about the performance of the models. (At least I could not find that information)
EDIT:

Would you consider the "Napalm Girl" [0] to be child porn? Or evidence of the atrocities of the use of napalm in the Vietnam war? Did it eventually contribute to the end of public support for the war?

https://en.wikipedia.org/wiki/Phan_Thi_Kim_Phuc
So maths isn't axiomatic, and can be fully proven - Godel was wrong?
So they are bowing to pressure from liberal terrorists?? Then maybe they should retire and hide.
And disable future use of the autopilot system until you've visited your local police station to explain what happened and they then authorise your local Tesla service center to unlock it for you.
Code reviews are hard. It takes a lot of time to really review something and understand it. I think it's much better to discuss plans up front and get buy in from other people before and while you write the code. Obviously that requires an open and respectful culture.
Quite a Memory (2005)
Yes I have answered on that link. I think in that case is unrealizable.
With about the same cost of living. I don’t think he was referencing those cities when he said “Nowhereville”.
It does have such a system. This driver must have defeated it somehow.
but can you make that in houston ?
Middle-class is a function of outlook, not of income, occupation, or status. Future preference, self-discipline, social conformity, infinitely expandable material demand, and a general emphasis on externalized impersonal values are the attributes of someone in the middle class (from Carroll Quigley's 'Tragedy and Hope' from which an excerpt on the middle class can be found here: https://pastebin.com/raw/6iFPbQdp)
Your inability to understand the subject is astounding.

Funny how you demand from me to show you numbers when you are not doing so yourself .. but what can i expect from a german right ? ;)

My point was never about commies mooching off the great capitalists so again you missed this one as well. The point was that the european economies gained its wealth and glory by employing capitalist practiced in the countries of 2nd and 3rd world while pretending moral superiority and bad mouthing countries like the US or China.
My car is nothing special or high end (a 2014 Seat Ibiza) but an alarm goes off if somebody is sat in one of the seats without their seat belt on.
User stories, tasks and beginning and end dates for as may projects as possible. In order to do simulation and predictions.
Coming to a stop on a motorway mid-lane is probably among the most dangerous things an autopilot system could do.

IIRC, Tesla dings occasionally if it detects no hands are on the wheel and slowly decreases speed.
People need milestones. It makes them going rather than getting depressed about the fact that it all goes nowhere (in their opinion).
You could run the board position through a Go engine and only pass once the engine decided it was time to pass.
Where would you start? Wikipedia says he wrote more than 70 books. Thanks.
It's not. It's something you throw at the people who did it without your help to attach your name to their accomplishments.
> What is disturbing you? the mere topic?

The fact that you seem to consider the act of looking at the resulting pictures to be the primary crime even though that is more or less victim-less, rather than the sexual abuse that children are subjected to in order to produce the pictures, which very obviously is not a "cyber" anything, while you at the same time put murder into the category of "meatspace crime", if, following the same logic, it would also belong into the "cyber crime" category, because there can also exist pictures of the act of killing a person that people could look at.

This seems to be an expression of the focus on the vilification of a sexual orientation that people have no control over, namely pedophilia, while almost ignoring the thing that actually hurts other people, namely the actual sexual abuse of children.
Chicago is very cheap.
Because I've seen a lot of orgs of all sizes, people sometimes ask what happens to stress levels as the org grows? In fiction, big companies are high-risk, high-drama affairs.

Not so much. In reality, very quickly the stress almost completely disappears. Instead of there being a bunch of things to stress over, there become a very few -- they're mostly hidden. As soon as you grow to even 20 or 30 people, members of the group start actively doing all they can to reduce stress. As you already know, the people who tell you that it's never going to work aren't your enemy, and they really want it fixed. They're doing their best to make your job productive and happy.

I worked in a very well-known financial firm once that had just gone through several rounds of lay-offs. It was one of the most encouraging places I've seen. Whatever was suggested, people loved it. They didn't change what they were doing, but they weren't about to try things they "knew" weren't going to work, so they offered effusive praise and found good places to hide.

Big companies may do cruel and inhumane things to their employees, but it's most always out of kindness, not malice. The operative rule is "no drama" -- which can many times mean "don't rock the boat". The two get conflated quite a bit.
What is with the editorial meme of putting direct quotes of the article you're reading in line with the text of the article?

I've seen this across media. It almost makes sense to me in print (e.g. a magazine), because you can see the whole of the article at once, spread across the pages.

These quotes are often spread out to, I guess, break the flow of rendered/printed paragraphs.

In web content it seems a bit meaningless to me. This article is particularly terrible, as the quotes immediately follow the article text they are quoting.
Coming to a stop on a motorway mid-lane is probably among the most dangerous things an autopilot system could do.

You’re replying to someone who specifically said coming to a “safe stop” and not what you’re saying.
Yeah, I think that would work well.
Show HN: Witsi.co – Credit Card Reward Tracking
https://en.wikipedia.org/wiki/Ikigai

reason for getting out of bed every morning
Looks like the guy who invented the game also prosecuted Ted Bundy. Can't say I expected that.
That is very much a false dichotomy. Your german products are of good quality but largely overvalued and this shows when Trump threatens with tariffs ;). There is actually very little that makes as much money for the germans and is not directly connected to a field where german companies have a specific monopoly. I hope you are joking right now and know how borrowing public and private money works.
Science fiction is presented as fiction, people discuss it as fiction. The comments here are very much a different story, so please take the time to read them.
It's definitely a bold claim and one people don't want to discuss. Bar the points you mentioned, mainly that they seriously stunted the rise of the Internet and world wide web. When it did take off, due to market share and mindset, they actively locked people into their vision of it. People are still, right now in 2018, trying to escape some of their grasp. There's still ActiveX out there. Plus the damage they did to Java for example.
"Rich" vs. "wealthy"?
Nobel Peace Prize? Yeah he should. We all know the kind of relevance Peace Prize nowadays have. Gate's foundations activities in India has come under the scanner for medicine testing and other such practices.

https://economictimes.indiatimes.com/industry/healthcare/bio...
I'm under the impression that this is considered intentional art. I could be mistaken, but the previous carvings and paintings you mention were purely functional.

What's noteworthy here is intent. I think ;)
One must distinguish human nature, the shared phenomena of our being, and "human nature", the rhetorical bludgeon that ends productive discussion.
Code review should be informal and conversational, these guidelines are the opposite of that. I'd say the real problem here is people not having the rapport neccesary for a real conversation.
He stopped himself though. But yeah, more likely it was a neighbor who stopped him.
There are ways of tricking sensors, and reaching over to touch the steering wheel from the passenger seat is trivial. Tricking the person-in-seat sensor(s) seems a lot more difficult but not impossible.

I would classify this as a person wildly misusing a product, not as an engineering failure. If a person purposely drove their car off a bridge, we wouldn’t call it an engineering failure.
Mirror neurons aren’t talked about enough. The repercussions in every field of human psychology (then economics, religious, etc) are huge. and really important today. I suspect we will hear about them a lot more in the future.
It's good to discuss things upfront but I almost always realize stuff while I'm implementing that I hadn't completely forseen.
Stopping in the middle of a high speed road is dangerous, but I’d say it’s less dangerous than continuing to drive at speed with nobody at the wheel.
It seems like places like the US and UK have swung between extremes: first a long period when beer was nothing but bland macrobrew: Bud light, Heineken etc, and then a growing counter-movement of artisanal craft beer.

Same with bread, Artisanal Craft Sourdough bread is a thing now.
The problem is that there's not one definition of middle class. Most Americans think that they're middle class, whether they make $22k or $200k: https://www.bloomberg.com/features/2016-america-divided/midd...

Everyone lives inside their own social bubbles and think that their lifestyle is average. In this bubble, vacations to Europe every year are normal; "Everyone" send their kids to private school, dines out three times a week etc.
As far as I know, we have no reason to believe that the complexity of languages has changed over the last 200,000 years. The languages spoken by today's stone-age hunter-gatherers (there still are a few) are not systematically and fundamentally different from the languages spoken by more technologically advanced groups.
An MBA, much like most schooling, is all about signaling. Anyone who frames our educational system in any other way is missing the point.
Why does the western new left intelligentsia always back authoritarian governments? Castro, Chavez, Maduro, to cite a few, not to mention those who studied under these “highly anti-authoritarian” “intellectuals” like Pol Pot.
I wish the entire series was just Simon Schama. Even though I disagree with his politics, at least he knows how to string a narrative together. Beard talks like she's reading a Wikipedia article, and the US editors noticed.
Forkish suggests not scoring your bread. From what I understand it can be somewhat of a contentious issue in the bread-baking community.

I've experimented with scoring with mixed results, although I'll admit I don't have the right tool for it and my technique may not have been correct.
This is exactly why you need to take some algorithms and data structures
lecture. Who in their right mind would think that checking if a key is present
in a hash map takes O(n) time by generating a list of all keys and linear
search when extracting the value from under that key takes O(1)?
... Ingo Swann introduced me to the 'mirror neuron' concept -- at his 2004 talk in Las Vegas iirc -- and suggested that these are part of the biological explanation for certain phenomenon: (so-called) extra-sensory perception, telepathy, etc.

from the article:

> The mirror neuron system is a network of neurons that activates both when you watch someone do something and when you do it yourself

Ingo also pointed out (iirc) that the effects of mirror neurons are what makes pornography so compelling for (some) men. Even though pictures are no substitute for the experience, mirror neurons allow the observer to get more stimulation than they'd get otherwise.

my earlier comment about Ingo Swann: https://news.ycombinator.com/item?id=12997711
Yes I see what you mean, but that was never the intended message, note the ellipsis!

So just to be clear, I think it is obvious you, me and nearly everybody regards the making of childporn as a crime, without making any statement on how we regard the crimeness of watching child porn.
What is k-anonymity?
It's not about following bots, it's about participating in a mutual boosting scheme.

As the article states, visibility and 'fame' on Instagram is directly related to Like-count and follower numbers. And for many photographers that visibility leads to work.

So if they have to permit their account to be botted to give Likes to other accounts but receive similar benefit in return, they do so.
I feel you man.

There is a guy working on his own "open source" laptop, and his eventual goal is to have it run lisp all the way down:

http://mntmn.com/reform/
> If you've never baked before, sourdough is enough to turn you off to the idea of anything but store bought. it is not as easy as this post makes it seem.

totally disagree..

I've made bread exactly 1x, which was a week long white flour sourdough using similar techniques as described here, and it was pretty good. Not as good as a bakery, but still pretty good.
A community is basically defined as a group of people squabbling about something that outsiders find laughable.
> The BBC and PBS versions were made by the same production company, but the two broadcasters were each responsible for their final chosen edits.
This has nothing to do with user IDs. It's a general problem with antiquated languages that quietly convert/promote compatible integer types and can happen to any other integer types.

Solution: use a modern language like Go or use pointers to structs like everyone else.
Well, first of all let me emphasise again that it's not an either/or proposition, they work together perfectly fine. Personally I use paredit extensively and yes, going back to a language/environment without it feels like having to work with my hands tied behind my back, but I still make use of parinfer as well.

Sometimes just deleting a couple of lines in Vim (IdeaVIM in my case) and knowing that parinfer will take care of the parens feels faster and more comfortable to me than using paredit. YMMV.

And as far as beginners are concerned - for someone coming from an OOP/imperative programming/C-style syntax background, a LISP will seem very foreign and weird for many reasons, the parens being just one of them.

I think having the ability to get your feet wet and start dabbling without an upfront investment is a good thing and the "jumping into the deep end" approach isn't for everyone, especially not for many beginners who at this point have only a very vague idea that a LISP might be for them and are already facing a number of new concepts that they need to get their heads around.

Parinfer requires no investment, Paredit requires some. Not much, but still. And going from one to the other as one feels drawn to explore the language is, I think, a perfectly natural transition, which requires no unlearning or changing of habits whatsoever, and as such it's also a more accessible path to getting into LISP. In my book, that's a good thing.

But here we're beginning to move into a general attitude/philosophy territory that's hard to argue about, so I'd be perfectly comfortable with agreeing to disagree and leaving it at that.
They're possibly telling the truth. Maybe they weren't breached. They may have just sold their customer list to to one of their "marketing partners" who was either breached or are the crooked actors themselves.
LOL. You have to threaten tariffs when you can't compete.

And yes, unlike you, I do know how borrowing money works: the US is currently borrowing half a trillion dollars per year from foreign sources, net.
> my classmate are incredible and many remain close friends

That's a more significant aspect of business school than the classes themselves. In fact, I suspect the curriculum are designed more to maximize the creation of friendships (i.e. fairly easy and communal) than it is to actually fill people with knowledge.
> This includes making commercial copyright violation a criminal, rather than civil, offence. It also includes things like making circumvention of technical protection measure illegal.

> It's wide ranging, it removes freedoms, it causes economic harm.

And how exactly is that? The government didn't go after him because he was distributing pirated media or software to his friends but he set up a manufacturing unit, deceived customs to profit off the operations. Not to "recycle and reduce waste", not to help you or me.