skysight-inc/HackerNews huggingface dataset:
"did get screwed because somebody at the show production thought viewer rating is more important than filtering out entrepreneurs with bad intentions before being asked to put their reputation on line by announcing investments on national television"

Listen - you have to take 'Shark Tank' with a little bit of 'Trumpiness'.

It's entertainment man.

The companies are chosen at least as much for their entertainment value as anything else.

Mark Cuban is not concerned about his 'reputation as a serious investor'. In fact, he's probably a joke in serious investment circles.

Mark is a 'pop culture' investor, he cultivates an image of what 'joe street' thinks a 'business investor' ought to be. Obviously - he is that to a great extent, he's putting real money on the line, but he's not a VC in the the more orthodox sense.

He'll have his team do due diligence after the fact, and do a no/go later on.

All of the ridiculous fights, 'isms' and 'sayings' etc. - they are like 'Trump tweets' - you think it will damage him, it won't. It's pop culture ... where having the eye-balls matter. He has legions of 'at home followers' who look up to him. That's his audience.

He might lose an inch of cred with people like you and I, but gain at least as much back from of the kinds of people that watch this show.
I will stop bashing C when C code looks as beautiful as Python code.
Warby Parker (https://www.warbyparker.com/) makes some really nice "luxury" glasses, even though they still cost less than the cheapest pair you'll see in a typical store. They'll even send you 5 frames to try on at your home.
> On the other hand, that is a property of floating point numbers, regardless of what language one uses.

That's true, but, OTOH, having floating point rather than an exact representation be the default representation for values represented as decimal literals, and the only non-integer type supported by convenient operators is a language-specific "feature" of C that many other languages don't share. (Though, to be fair, there are also many newer and popular languages that do share both, and more just the first, of those features.)
How much is the fine roughly? Sorry for the persistent questions but this is the most interesting one so far.
The only good reason to think critically is that it's empowering. If you can convey this to your students you can get them to think critically. If not, then not.
Lithium is for Aneutronic fusion, while this is being researched it's a completely different fusion mechanism than the hydrogen plasma these reactors fuse.

I made a few comments about this in a previous thread https://news.ycombinator.com/item?id=12877466
I don't think anyone's ever gone to Manhattan with the expectation that it would be a staid, static and relaxed kind of place. Change is a constant in big cities like NY.
I'm just shooting from the hip, but: Unless the posthole was actually on a fault line, there's no reason that an earthquake would wipe it out. The ground all moves together. Erosion & flooding can absolutely destroy them. But there's enough places that have been undisturbed since that time period.

When I was in Chengdu I visited Jinsha, which has lots of evidence of postholes: https://en.wikipedia.org/wiki/Jinsha_(archaeological_site) http://www.kaogu.cn/en/Chinese%20Archaeology/3/Discovery%20a... Granted, that's only 3000 years old.

A better example (which I just learned about-- I'm literally trying to google for the oldest post holes found :) ) is Monte Verde: https://en.wikipedia.org/wiki/Monte_Verde

> Radiocarbon dating of bones and charcoal in 1982 gave the site an average age of 14,800 years ago (calibrated), more than 1000 years earlier than the oldest-known site of human habitation in the Americas at that time.[2][8][9]

> In the initial excavation, two large hearths were found and many small ones as well. The remains of local animals were found, in addition to wooden posts from approximately twelve huts.
I've bought stuff from all 3 before.
Zenni is the one that I finally figured out how to order for my PD correctly, but there are some caveats.

1) See this twitter https://twitter.com/troyd/status/560089054356574209 - My zenni specific email was spammed. They either sold my email or they were hacked. I don't know what the cause, but I would not give them anything valuable including only using PayPal with them.

2) Their anti-reflective coating is not as good what I get from local optometry. My pictures tend to have this greenish tint, and I paid for the best thing you can get from them.

That said, I was able to get $8 glasses that worked and I can see perfectly using them. If I need cheap glasses, I know where to go.
But is there evidence beyond the episode that the deal actually went through? I mean, it's just reality TV, surely a real negotiation happens afterwards where this stuff is checked, no?
The idea is that they were "settled" in a sense, they just didn't have agriculture (maybe).

Improving technology (e.g. archery, fishing) could have (albeit temporarily) given hunter-gatherers an overabundance of food which created a demand for increased storage and division of labor which might give you increased communication, trade and domination of nearby groups through force.
The Billionaire Who Didn’t Like Being Too Rich
I would love to buy glasses on-line, but have a simple issue of having an absolute massive head. Unless I go in and physically try on a pair, I just have to assume it won't fit (usually the width of face, but temple length is also a pain...)

:(
House Science Committee Tweets Climate-Change Denying Breitbart Article
The thin font is super unreadable on my Galaxy S4.
Damn auto-correct. That should be "acetone respiration".
> If you actually look at paper after paper the core data is horrible or there are simple lapses in judgement about how their research is structured. You sit in graduate class criticizing and laughing at some of this but that's the research that makes the world go round. A lot of our core assumptions are less about data and more about intuitive arguments[....]The real issue is there is nobody but the intellectuals to criticize this bad research...

Which is why, I think, most people outside of the intellectual/journalistic class are just tuning out and losing trust. So much research (especially in this day of internet-powered independent investigators) is so obviously meaningless guff, that people are justifiably apathetic about anything the academic intellectual class thinks.

And they're quite right to do so, in most cases. Not that others necessarily have all the answers, but at least most people don't pretend to the kind of nonsense expertise in evidence at the universities.
They are two different problems.

If you have many active users, you're testing for the write load of user tokens and sessions.

If you have many accounts, you're testing for the read load of the account database.

Technically speaking, user id and sessions should be two different database systems, because they have different requirements and they're conflicting.

For the first one, the problem is to have lots of write and enough performances. Plus having the storage if you keep tokens forever (typical for auditing).

For the second one, the problem is to be able to store all the accounts, plus read performances (which can always be hacked by adding layers of caching).

Funfact: if each account is only email + password (64 + 64 char), 1 billion accounts consume 128 GB, just for storing the ASCII characters. A lot more in practise with metadata, empty space and other fields.

They say that they only had 1 maria DB on a single EBS P-IOPS volume. That's kinda weird that a 1 billion users database could fit in that -and zero errors, really?-. Maybe they just had a single integer field (1,2,3,4) to define the user and the password :D
consumer headsets (Oculus Rift, HTC Vive, Playstation VR) will represent a bigger market at first but then it will stall, allowing location-based VR centers to surpass it and maintain their lead
Teachers and principals are mandated reporters. When they observe abuse of a student they are mandated by law to report it. Homeschooling parents are not.

Furthermore, I didn't have an argument. Homeschooling seems dubious to me. As a homeschooled kid, if you win the genetics lottery to have educated non-lunatic non-abusive parents capable of teaching the entire spectrum of knowledge areas, it might work out really well.

God help the kid chained to a bed at home being homeschooled without anybody knowing the child's plight. God help the kid whose parents can barely manage the mathematics required to keep a checking account balanced. God help the kid who has a medical condition like autism that the parent is incapable of addressing.
You can learn more about Golang here https://www.livecoding.tv/learn/golang/
> "In the early days of MPLS, the payload was almost exclusively IP. Even today the overwhelming majority of carried traffic remains IP."

You can pretty much carry "Any Transport over MPLS" (AToM). As mentioned, IP is the most common protocol, of course, but you can "tunnel" almost anything you can think of over an MPLS path: Ethernet, ATM, PPP, HDLC, SONET, etc. Basically, you dump a frame into one side and it comes out the other unmodified -- regardless of the network in between.

As noted in the linked e-mail, an ISP providing (layer 2) transport has (little to) no control over the payload so there's nothing they can do to prevent running into this issue.
correct :).
Dancing robots’ performance
Why SFTP is still slow in curl
"Re-using almost the same business name is hardly a crime."

It's not the 'name' that is in question.

It's a separate legal entity.

It's a completely different company.

i.e. different shareholders.

This is a definitely a crime.
Why is it morally acceptable for the government to take money from you under the threat of force for a service that would dissolve into insolvency immediately if the public had any other economic option by your own admission?

The government letting you keep more of your own money is not a handout.

I agree with you about the single tax rate though.
The introduction is rather lengthy, if you're looking to skip to the part regarding mitochondria:

"The Brain is What, Exactly?" section starts a bit before halfway scroll.
There are many reasons why Web Components are important and framework proliferation is just one of them.
The One Time Pad is secure and each step can in its operation can be validated by a layperson with pen+paper.
Or, The Homer.
http://vignette4.wikia.nocookie.net/simpsons/images/0/05/The...
https://www.wired.com/2014/07/homer-simpson-car/
>It's easy enough to measure myself

Do you have any recommendations about this? It's the kind of thing I'm a bit nervous about searching as I can see many, many ways I might accidentally read the optician equivalent of an anti-vaccination blog.
It's going to happen AGAIN, AGAIN and AGAIN. I give you a piece of a advice : only use something that has been there for at least 2 years and is still maintained actively, preferably corporate backed. So React for instance. Because in 2 month there will be yet another hot thing that will be maintained for 5 months then its creator will get hired somewhere with a nice salary, then he will write a blog post about how kids and wife make him unable to maintain his project anymore.
> the compiler just happily "assumes" that the programmer is flawless

In my experience, this is the right thing to do for most applications. Every time a program (ex: compiler) tries to guess what its user (ex: developer) meant, instead of just sticking to the input, there will be problems. In particular, you may help some users in some cases, but you'll prevent other users to get what they have the right to have.

> ... seems far less productive ...

And maybe it is, but it's not a compiler's business. Use automatic tools, write your own tools, decide coding convention, impose code reviews, but please let the compiler do what it is supposed to do and how it has learned to do in decades of evolution.
Not sure if anyone will appreciate this, but if you haven't seen it, it's oddly relevant to your comment:

http://www.cc.com/video-clips/acaxis/key-and-peele-the-heist

It's a skit by Key & Peele describing a genius plan for a bank heist. I won't ruin the punchline by going any further.
http://www.wsj.com/articles/SB100014241278873245047045784131...
> You do need your pupillary distance, but you either measure this yourself with the help of a friend, or ask your optometrist.

One site just asked for a selfie with a card (anything credit card sized) held over your forehead.

Amusingly effective.
"You'll never create amazing products with this mentality..."

I think that this kinda misses the point. If you're only building the things they explicitly ask for, then yes, you're right. However, customer development isn't mean to track what your users want and cover their expectations; it's to uncover the biggest pain points/real problems to come up with amazing solutions for - what's actually _worth_ pursuing and potentially building? How exactly those solutions manifest themselves often times does not come directly from customers, but the amazing ones are just as often inspired by insights gleaned from customer development.

The article you shared actually backs up my point exactly. Example: what could be obvious to one of your customers can end up being amazing to you and your other customers. In practice, I've found this dynamic play out time and time again.
> Last time I got a new prescription I asked them to include the PD number and they refused. They would only give that to me if I bought glasses through them. I couldn't even pay them for just the measurement (I suggested $10-$20).

Go to Walmart. Most have an optometrist on site (can check online) and you can take the prescription elsewhere to buy glasses online. Probably cheaper (for the "doctor" portion) than anywhere else around as well.
I'm almost positive you mean "I'll shoot you an email." but the idea of someone being so frustrated with healthcare.gov they want to shoot the messenger (yet still get the problem resolved) is in-line with what I've heard. (and gave me a hearty chuckle)
The tl;dr is, it's to pay a lot of people for gruntwork.

This has been talked about here before. Basically, Zenefits is in an industry that requires huge amounts of manual work. Dealing with payrolls and insurance requires navigating multiple Byzantine bureaucracies both public and private, and it's often work that can't be duplicated or automated. That's what you're paying ADP for, for instance.

Zenefits claims that they use innovation and clever technology to solve these problems, but-- to put it charitably-- that's an exaggeration of the truth. Behind the scenes there's an army of people on the phone and sending email all day to keep it all running, fueled by VC money.

It's not unlike all these food delivery startups, where the VC dollars ultimately go to a bunch of poorly-paid manual laborers, while the business owners sell the product below cost and try to figure out a working business model before the clock runs out. To me it doesn't look like they'll make it.
Ask HN: When can we expect Python 3 support on AWS Lambda?
On AWS reInvent event, no announcements were made with regards to python 3 support.
I've seen a few fun articles about people breaking home grown encryption. The question is mostly about how motivated someone might be to find a problem.

Making a secure encryption algorithm requires a lot of presence of mind, and a lot of industry knowledge. If your threat model is incomplete, you lose. If you forgot one tiny thing at one tiny point in the algorithm, you lose.

If you don't have people checking your work, how do you know? If someone is determined to break your encryption, they are capable of spending a lot more time analyzing it than you spent building it. And they only need to find one mistake.

It's definitely better to use the tools that experts have spent lots of time, lots of breadth of knowledge, and lots of depth of knowledge inspecting.
Is there a general overview of the scientific claims made in this book somewhere? It sounds somewhat promising, but the table of contents doesn't exactly inspire confidence that the information is accurate. Additionally, I can't find any reviews online about this that don't look like shills for the book itself.
Simple solution: amend the constitution and ban the 14th amendments birthright clause. Are there any other countries on Earth that support people sneaking in to pop out a baby with the knowledge that said country will fully pay for and grant all rights and privileges to that child? No. It's not about compassion for immigrants, it's about reality and economics. We have millions of homeless and impoverished in our own backyards so let's stop incentivizing the poor of other countries to come here and get a free ride on the back of our middle class.
Who went there and listened, though? A couple hundred people? There's all kinds of places you can go on the internet right now where a couple hundred people will listen to intense, respectful debate. Heck, there's places where a couple hundred people will participate in an intense, respectful debate. Good luck finding that in the Lincoln-Douglas era.

The existence of mass media doesn't mean there isn't niche media. The fact that you don't visibly see people participating in respectful debate doesn't mean it's not happening. I think the solution to people who make this complaint isn't to rant about the degeneracy of their fellow man, but to go look harder for some of the many good things, if not always well-advertised things, that exist out there.
You know 1M select(1)/sec is easy, now 1000req/sec with complex process is not easy.

The number of requests per seconds doesn't matter, what matters is the complexity of the logic behind the request.
Sounds like they thought of the consequences and didn't heed the warnings ;)
An easy to use parsing library with some sort of way to import sub-trees (ie: everything between these parentheses uses this other parser) and good default parsers for obvious things like C-style math and JSON objects.
An interesting experiment would be to see if a modern, easy(relatively) to audit compiler like tcc can still be used to bootstrap a more full-featured compiler like gcc or llvm. That would provide at least some protection against this, in that it is unlikely a backdoor in your binary version of gcc will have a trusting trust backdoor for tcc, which can then compile a clean gcc.

I know this was possible in the past, but I'm not sure if tcc can still compile a relatively new gcc.
> What sets Meditative Joy apart from other forms of flow is that the flow-inducing activity takes place entirely within the mind itself, and the skill being applied is concentration, rather than concentration arising secondary to the focused application of other skills."

I am really not sure this is true.
Here is a quote from Zen Mind, Beginner's Mind:

> If you are concentrated on your breathing you will forget your-
self, and if you forget yourself you will be concentrated on
your breathing. I do not know which is first. So actually there
is no need to try too hard to be concentrated on your breath-
ing. Just do as much as you can. If you continue this practice,
eventually you will experience the true existence which
comes from emptiness.

So yes, you induce meditation by choosing (in your mind) to watch your breath but that's no different from choosing to play a game. Furthermore you're merely watching your breath, not controlling it. So it could be argued that the concentration arises secondary like it does when you focus on a game.

But then again arguing takes places on a dualistic level, so what's the point (in this specific case)?
Uhh, the US has had extreme government regulations regarding healthcare for as far back as I remember. Every state has it's own insurance administrator and purchasing insurance across state lines isn't allowed. What we have right now is the worse of both systems actually. It's a heavily regulated false free market where the customer has basis for comparing prices and has no direct control over providers. Instead they must choose between a government chosen option or an employer chosen one. It's just terrible all around.

With a single payer system, at least it would be fair to lay all blame on the single payer. It'd still be beuqacratic and political, but at least there'd be direct responsibility.

Removing the regulations, at least the customer would be able to choose a provider themselves and people could sue over pricing disagreements. There would be issues with pre-existing conditions and low income that would still need to be addressed, though.

Either option is better than where we are today, which is, well I'm not sure. There's not really a term to define the mess we've created. It's not socialist, it's not capitalist, it's just a mess of special interests, political concessions, and reactionary legislation. I guess the one thing we can definitely call it is bureaucratic.
Yeah it takes a few thousand calls for the JVM to "warm up". It's surprisingly noticeable on speed and latency, but I'm less knowledgeable about the GC.
Worth linking "diverse double-compiling" there or to some other resource, if I may make the suggestion.

For other interested readers:

a) html version of David Wheeler's dissertation: http://www.dwheeler.com/trusting-trust/dissertation/html/whe.... I read it over a week last month, and it made a big impression on me.

b) the HN discussion for the Wheeler dissertation: https://news.ycombinator.com/item?id=12666923
No, but the `-r` option makes it use extended regex[1]. Here's some PCRE:

cat file | perl -ne 'print if s/(\w+) (\d+)/\1 is \2 years old/'

My only point is sometimes old school standard tools are plenty.

1: https://www.gnu.org/software/sed/manual/sed.html#Extended-re...
This post is a karma-bait!
> I type hash = {} in Ruby and there is no need to declare it as HashTable (what else could it possibly be?)

In java you have options other than a HashMap, there is LinkedHashMap (which preserves insertion order) and TreeMap (which stays sorted according to a comparator). There are also extensions for things like Immutability. The checking can also guarantee that it will only have one type of object, or a common interface, or you could allow it to accept any kind of object.

So, yeah, there's quite a few things that an associative array could be, and there's reasons for all that, and i've used most of these on web backends.
Agree 100%. Great analogy.
sorry but this is so inaccurate... this thinking is what will prevent the democrats from winning for the next decade..
oh boy..

Take into account what will insurance be if you have kids, not to mention that even with insurance you will usually still get an invoice after visit to the doctor/hospital (correct me if I am wrong), which may be substantial amount of money (even after insurance negotiations, etc.).

Don't know how it's in US but in EU you have around 20-30 days of payed holidays, payed sick leave, payed _sick child_ leave (!). For example my coworker's 2 kids and wife had severe pneumonia, full treatment took around 2 or 3 months and he could help his family on paid sick leave that whole time. I do not know how much it would've cost in US but it would be a significant amount of money, not to mention that you would still needed either to work, to take unpaid leave or to quit.

It's all about averages. You maybe healthy (now) and do not pay much, but what if some serious illness hits you or your family member? What if you will get some chronic illness/condition? On those cases your insurance price may be adjusted.

To be fair, I want social health care to be more efficient and economical, i.e. not to pay 1/3 of my earned money for it, but I am treating it as a cost for my sanity and not needing to worry about some shit luck hitting me and insurance twisting their ass out of the situation, as insurance's goal is to pay you out as little money as possible.