skysight-inc/HackerNews huggingface dataset:
Ask HN: Which sites to find Chinese learners?
I'd like to introduce my product, but I don't know where to find Chinese learner on the web. Do you know any sites where can find Chinese learner group, it doesn't need to be specific language learning site, any general site like Facebook,Reddit,meetup are fine, can you recommend more, especially sites popular in the US
If there's a video recording of this meetup it would, in fact, be amazing, too.
If course Paulus asked for more troops, Stalingrad was a meat grinder, exactly the type of battle the germans could ill afford.

I'm writing this from memory, but my memory is the only reason they were there was opportunism, they advanced faster than expected, and looked to take Stalingrad easily despite it not being a strategic target. Then when they got bogged down Hitler refused to allow retreat, he thought taking the city named for Stalin would dishearten the russian people, and a german retreat would inspire them. So he threw away a million man army he couldn't afford to lose.

And all while under-supplying the army in the Caucasus and dooming it to failure.
What kinds of questions?
The common complaint among the politicians is that tech companies are skinflint. The bad laws are maintained (Marin County just exempted itself from dense housing laws for the next 10 years[0]) because the people who care about urbanism are not the people who give the many local campaign donations.

One major problem is, until recently, there has been no noticeable movement in local government[1] to create good urban policies. I suggest joining the YIMBY Party.[2]

[0] http://www.sfchronicle.com/opinion/article/Marin-bill-SB106-...

[1] http://www.politico.com/agenda/story/2017/07/07/housing-cris...

[2] http://www.sfyimby.org
Globals – Magic swords for storing data. Sparse arrays. Part 3
Ask HN: How did you transition out of software?
I took a week off to do some things around the house when it hit me: Watching paint dry in the real world is more pleasing than doing anything on a computer anymore, and I need to get out of this industry.

It's not that I haven't lost interest in software. In fact, I'm actually more excited about it now than ever before. It's just that I miss interacting with "real" things in the "real" world.

I'm not the type of person that doesn't know how to take breaks. I do take plenty, but the slow shift from computers being a distinct thing from everyday life, to now being a 24/7 inescapable phenomenon, is probably what has me feeling this way.

Years ago you used to be able to interact with a computer on your own terms and walk away and get back to the "real world" without burning out. In recent times the digital world has become so deeply integrated with daily life that I sometimes think I might be happier if I never see a screen again. This combined with the widespread surge in popularity of all computer related fields has me wanting OUT.
The HTTPS Host header is not unencrypted. You are talking about SNI which is an extension to TLS that adds the hostname as part of the handshake. The Host header is still encrypted when using SNI.
But indeed, only slightly. The title comes from a quote by the security researcher who discovered the bug. I'm guessing the lack of information is about whether or not anything has been done to patch the hole - my guess is that this bug, unless specifically protected against, affects the OS using the chip.
By the way, I think he has most of what you have stated in it in another post. Just search for " Investor Risks associated with Saudi ARAMCO IPO" in Google.

https://goo.gl/QnT6gi
James Fallows was one of the better known journalists and he got a lot of attention:

https://www.theatlantic.com/magazine/archive/2002/10/proceed...
https://www.theatlantic.com/magazine/archive/2002/11/the-fif...

There's a LONG list of people referenced here, including a number of military, intelligence, and foreign policy experts:

https://en.wikipedia.org/wiki/Opposition_to_the_Iraq_War#Opp...

A key part to understanding this is remembering that blaming it on intelligence failures was the defense which the George W. Bush administration settled on to replace their earlier failed excuses. Before the invasion started, the intelligence claims used to justify it had fallen apart and the U.K. & U.S. Senate reports noted that significant pressure was placed by the White House on the intelligence agencies to justify what they were already planning to do.

(The former Treasury Secretary noted that is was planned starting before 9/11: http://www.cnn.com/2004/ALLPOLITICS/01/10/oneill.bush/)

The Downing Street memo (https://en.wikipedia.org/wiki/Downing_Street_memo) had a similar conclusion, quoting the Foreign Minister:

> Bush wanted to remove Saddam Hussein, through military action, justified by the conjunction of terrorism and WMD. But the intelligence and facts were being fixed around the policy

The pattern through all of this was the White House choosing to ignore, override, or replace professional civil servants with political appointees who would produce the desired results. When the CIA and other analysts would not support those claims, Donald Rumsfeld setup a sham intelligence unit which did produce the claims they later used (https://en.wikipedia.org/wiki/Office_of_Special_Plans).

This happened with the planning for the invasion and occupation.

When the military sensibly pointed out that they needed to plan for the occupation:

> In fact, said Brig. Gen. Mark Scheid, Rumsfeld said "he would fire the next person" who talked about the need for a post-war plan.
>
> Rumsfeld did replace Gen. Eric Shinseki, the Army chief of staff in 2003, after Shinseki told Congress that hundreds of thousands of troops would be needed to secure post-war Iraq.

http://articles.dailypress.com/2006-09-08/news/0609080088_1_...

When the State Department accurately predicted that the invasion and occupation would not be a cake-walk, it was largely ignored. As one example, that was the conclusion in 2003 — well before the full scope of the botch had become clear:

http://www.nytimes.com/2003/10/19/world/struggle-for-iraq-pl...
There is a lot more you can do.

For example you can sign session IDs or API tokens when you issue them. That way you can check them and refuse requests that present invalid tokens without doing any I/O.
I fear America's car dependent infrastructure will be its greatest folly. It is disappointing. If Silicon Valley can't get this right, what chance the does the rest of America have?
Have you tried the Patreon model? Ebook or courseware might work if you have loads of original content, but Patreon could be appropriate if you're figuring things out and sharing personal research and practices.
> It's painted as an Apple victory

It's painted as "Apple and Intel both won, without Apple having to give up something they cared about"
vCPU is a different concept than hyperthreading logical cores, though. They're decoupled. (vCPU comes from virtualization software like Xen.)
On the other hand, PDF is probably the only widespread use of formats like JBIG2 and JPEG2000 --- which are rarely encountered as individual files, unlike JPEG, PNG, or GIF.

A lot of the scanned PDF ebooks on archive.org use JPEG2000+JBIG2, and the filesize vs. quality difference compared to more traditional formats like JPEG is quite apparent. They do take a noticeably longer time to render, however...
Or a car. Some people like living a car-centric lifestyle, and it's no fun in SF.
Why Smarter People Are More Likely to Be Mentally Ill
Maybe it's time for a PDF-2017 standard that drops support for those older exploitable formats
> But there can be no reasonable argument for a standard conceived of in the last 10 years to allow users to deploy something for which the payload chooses the cryptographic interpretation of the payload. No application anyone on HN is deploying needs user-selectable cryptography. This is never a feature; it's only ever an invitation to horrible vulnerabilities.

When I read about JWT's I saw the alg fields to a simple indicator of the algorithm being used on the JWT, not that it is allowing the token to select whatever algorithm it wants for the server to run. Granted, this is a semantic difference, but if you treat the alg field as such it then becomes the servers choice of what algorithms to support. The practical solution is simple: Only support one algorithm, and if the token's alg does not match what the server is expecting, do not authorize. Sure this is a weakness in the JWT spec, but the real underlying issue is dev's not understanding the security mechanisms and libraries they are deploying. That is bad news no matter what tech they are using.
When Will Electric Cars Go Mainstream? It May Be Sooner Than You Think
Based on what I'm reading here, it looks a lot like freenet. Does orc give any kind of privacy promises like it?
Storybook: 150% speed up React Components development
Dynamodb experienced a severe outage in us-east in September of 2015, dropping the service to three nines of uptime on just the single event. During the incident there was little-to-no knowledge of when service would be restored, so companies that relied on the service were flying blind.

Such an outage can sometimes be mitigated when operations are internal to a company; but with DynamoDB, one has to build internal failover or implement a complex cross-region replication scheme. The complexity and reliability starts to reduce the attractiveness of the hosted service in general.
That's because it's quite common for simple appliances to use a universal motor.

https://en.wikipedia.org/wiki/Universal_motor

It basically doesn't make a difference what polarity you feed it, if it's positive going into the rotor then it's positive going into the stator as well. When the rotor changes polarity, so does the stator.
I do have a Patreon, but people who actually have CF have no money to spare as it is both debilitating and incredibly expensive (see http://micheleincalifornia.blogspot.com/2017/05/the-wrong-me...). Other people often tell me this is not pertinent to their lives. I think it has broader applications, but it has been really hard to try to figure out how to convince people of that.
Ability to get stickers is contingent on actually buying the CPU first. Buying ramen isn't contingent on first buying a house.

The post you replied to is saying "A rebate is de facto a discount."
I don't really think that's a sensible comparison--implementation of an algorithm (i.e. implementing Raft) and application of algorithms knowledge to a problem (i.e. a canonical coding interview) are two completely different tasks, no?
> Cars are freedom

I've never understood this. How is being locked into an oft debt-financed mass-manufactured vehicle, whose maintenance is dependant on parts manufacturers and the petrochemical industry, and whose use gives police the right to pull you over for anything, an icon of freedom?
Claims is the operative word. Features generally aren't free. If mmap'ing files was some sort of performance godsend don't you think most DB manufacturers would just rip out all their custom caching code and replace it with mmap?
Ask HN: Should I give my early angels extra equity?
I raised a seed round (500K) in two tiers, on tier late last year, and another this Summer. All the same terms including valuation. Basically, after raising 350K last year, which I thought would be enough to get to profitability, in April I realized I would need to raise the remaining 150K.

One of our investors told me that it was a bit disappointing that the early investors would get the same terms as those just joining now.

Putting aside the fact that the earlier investors did not raise any complaints at the idea of a second close when we got them in last year, I tend to agree with this investor, and would like to keep my current investors incentivized going forward.

I was thinking of issuing them options, perhaps structured so to give them an additional 20% (just mirroring the traditional discount structure in a convertible note).

What should I do?
>a lot packed into that comment.

A summary: once upon a time, Grand Central Station had AC at multiple frequencies in addition to 60hz (also it had some DC power). In the 1990s it was rewired so that the AC only used the (American) standard 60hz.

I suppose its hard to make sense of if you didn't know that 60Hz is the standard in the U.S.?
On point 3, compare how well a cat's algorithm for landing on its feet works in its evolutionary adapted environment to how well it works in 0-g: https://www.youtube.com/watch?v=O9XtK6R1QAk&feature=youtu.be

On point 2, I feel you should caveat that's only if group selection is a thing, which many don't think it is.
I have three kids and I seriously doubt their kids won't speak the language of their parents (assuming they'll live in Iceland).

The transition happens much slower, although I've been watching it accelerate over the past couple of decades. English is encroaching on the language. We speak Icelandic, but there are small grammatical changes happening, making the language more English - and at the same time, we're losing Icelandic vocabulary.

My prediction is that my grandkids (that's probably at least 13-15 years in the future (hopefully)) will speak Icelandic very similar to what I do, it'll just be a liiiittle different.

But these small changes will certainly accumulate and the pace of change will probably accelerate with more communication and integration. So who knows what will happen in the next 50-100 years.
The price list indicates that 1 instance is 1/2 a device, and so on: https://cloud.google.com/compute/pricing#gpus

Although I agree it is somewhat confusing in terms of performance.
I generally agree with your conclusions, but I don't understand why you compare JWT to cookies. These technologies are completely orthogonal. JWT can be stored in cookies and whatever you put in traditional cookies can generally be stored in local storage.

The right comparison is JWT vs. session tokens stored in DB or KVS. Or in case you already decided against storing sessions in DB, you should compare JWT against rolling your own crypto.

With this approach, cookies should be thought more as a mechanism for storing and presenting session data, not as security mechanism. You can't rely on cookie expiry date for instance - if someone steals that cookie, they can completely disregard expiry, HttpOnly, Secure, Domain or whatever other property you stick to the cookie.

Cookie expiration is basically worthless. Whether you're storing your sessions in a database or cryptographically signing them you should always add your own expiration mechanism. I've seen too many systems that blindly relied on cookie expiration for security, only to realize the implications later.
O(n logn + n)??? do you think computing power grows on trees?
EU Bastards!
They aren't in short supply, just about every shop I've worked at some tool decided to invent something like this instead of just using redis / sqlite.
That's a shame. He should know better than to approve this unethical garbage.
This line from those "bios" caught my attention:

I’d affection to help you with your written work, altering and substance needs!

...because I mentally "autocorrected" the latter half to "and mind-altering substance needs"... Looks like they used a "thesauriser" on it. Not hard to see love->affection, editing->altering, and content->substance.

Of course, if you are under the influence of a mind-altering substance, you would probably not notice anything wrong with that page. ...and unfortunately, so would many people who aren't.
I see what you were getting at now, thanks.
Tolls? Why would i pay for tolls when i am already paying taxes to supposedly fund such things. There is only so much freeway you can build. People would still want to live in places eith good school etc, and you cant fix that problem with more highways.
I need a container type that can be empty, because I need the monomorphic type of the cell to be undecided until the reference has been handed out to the worker threads.
I (only half jokingly) think (music like) that Bassnectar track Into The Sun is Lorin Ashton's attempt at hitting The Brown Note when played on a big rig sound system. It's just constant rolling thunder, break down around 2 mins in, followed by more rolling thunder. Sounds like the melody is playing on a different sound system half a kilometer away at the same festival.

Ah, music is weird because even the stuff I like is fun to criticise.

On that note, have you come across Ishkur's Guide to Electronic Music?[1] It hasn't been updated in a long time, but still highly amusing.

1. http://techno.org/electronic-music-guide/
In my neck of the woods, that's a reasonable phrase with words that have particular context to them that their synonyms don't.
> and the system can fill the cavern with air while generating electricity. You can't charge and discharge a battery at the same time.

Umm, does this seem as pointless to everyone everyone else as me?
It seemed to me he was recognizing her skill as a distiller of information. That's what a lot of her posts are, how is that disrespectful?
I don't think 50Hz was ever used in the US. What are you curious about?

They probably had some old 60Hz three phase supply, maybe something weird like a "wild leg" configuration, but when everything was modernized they likely switched to 480V three phase for the big stuff like the ventilation motors, and 240V single phase with neutral for supplying smaller motors and 120V systems.
If the new investors only got a tiny percentage, would the angels have given you some equity back?
It's still useful to some people (works offline, quick/easy access to important info, less to cram in your head during the course) but it's a small part of an already small niche. Population of Canada is 10x smaller than the US and not as firearm friendly.
> Got a waterwheel doing 1000RPM and you need a big saw attached to it? Your saw will be running at 1000RPM (~16Hz).

Most "waterwheels" turned far more slowly than 1000 rpm. More like a few hundred at most. They used pulleys and belts, and eventually CVTs.

Edit: http://www.alternative-energy-tutorials.com/hydro-energy/wat...
That is what BART is for though, yea? I have friends with nice houses and driveways and all that in Berkeley and it is only a few stops into the city.
"Tim! Tim! Benzedrine! Hash! Boo! Valvoline! Clean! Clean! Clean for Gene!"
thank you, just did Google.

Are there any examples of ICO companies getting in trouble because of SEC?
Manhattan is the one place in the US where urbanism is allowed, and even then, there's a pretty strong instinct towards preserving the parts of it built at lower density.

Building Manhattan-like environments even a few miles over in Brooklyn is vehemently opposed, though not very successfully.
> Artenstein has later confirmed on Twitter that connecting to a malicious network is not necessary.

> Users that didn't receive this month's Android security patch should only connect to trusted Wi-Fi networks and disable any "Wi-Fi auto-connect" feature, if using one.

What is the point of the second statement?
That's surprisingly affordable. Commenting to save
That viewpoint simply baffles me.

As a European who is in the Bay Area for a few weeks, I find the roads in the Bay Area to be really, really depressing. I also find them harder to use than the European variants:

* the Bay Area freeways don't seem to have consistent rules about when a lane is going to appear or disappear or peel off from the main freeway (so I constantly end up in the wrong lane; please, please correct me if I'm wrong!);

* the very frequent merge/exits mean that there's not really a taboo on undertaking, which doubles the amount of awareness I need to maintain (as well as "everyone overtaking me", I also need to track "everyone undertaking me" too, which isn't true in the UK).

The rule "stick to the rightmost lane which lets you maintain the speed you want to maintain" simply doesn't work for me because that lane regularly peels off to become a different road, and it's less effective anyway given that everyone undertakes all the time. On motorways in the UK, it's rarer for lanes to split off from the main road, and it's signalled much further in advance so you reliably have time to change lanes comfortably when you get caught in the wrong one.

I infinitely prefer public transport where it exists; if that means taking a taxi for the last short bit of the ride, so be it. Personal preference, but I just can't fathom how anyone could prefer cars over a well-run public transport system. (Of course, there are times when you just need a car or a van - hauling personal freight, for instance. But the vast, vast majority of traffic doesn't fall into that category: in the UK, over the past four years or so, I've needed a car about five times in total.)
More from a startup perspective, Graphistry started hiring here, so we've been thinking about it. We broke it down across several dimensions. Each is effectively a team multiplier. Hitting all of them makes you a unicorn who can do all forms of management... which is unrealistic. Instead, we've started looking to see if a candidate will help us cover the dimensions across multiple hires.

Roughly, we'd be looking for:

-- Technical: Will engineers trust you to help improve what they build and how? For example, can you architect across the stack and advocate best practices for code quality? Do you like leading from behind? As a startup, can you pitch in as needed?

-- Project management: Will you make development more predictable and productive? For example, as a feature moves from product design to implementation to production, will you help engineers technically spec, scope, decompose, tackle, & maintain features? Can you help with roadblocks, such as identifying risky parts, and making sure collaborations happen?

-- Product management bridge: Will you improve how product designers, sales engineers, and even early customers work with engineers, and vice-versa? Will you make sure infrastructure & operations are represented in engineering discussions?

-- Domain understanding: For engineers who lack experience with aspects of enterprise software and our customers' needs (security teams), will you help fill the gap? Will your visibility be a boon to the company?

-- Engineering management: Will you facilitate hiring? In what ways will you help engineers thrive & grow? Can you help with the ups & downs of rollercoaster startup life? Will you grow the company culture -- improve diversity, the daily environment, ...?

-- Junior developers: Will you help them integrate & grow?

-- Outside face: As a leader in a small company, can you assist with random customer-facing tasks like sales engineering and customer success? Recruit? Give tech talks?

-- Growth: As we go through the next doublings, how will you grow with us?

We look for awareness on most dimensions, and strong experience & interest on several. However, the form those take can be pretty varied.

... And if any of these sounds like you, please ping build@graphistry w/ a CV :)
1. Why are they interested in unicorns?
2. Are these just US companies? I would assume that there are a bunch of Chinese unicorns?
3. The study looked at only a few factors and correlation does not imply causation and the past is not a predictor of the future. The factors were school, gender, and previous attempts.

Therefore without more measures, we seem to be doing a whole lot of speculating on cause and effect with a very, very narrow lenses. Seems like we are mostly exposing our own narrow views rather than how the world actually is.