skysight-inc/HackerNews huggingface dataset:
Hi HN,

Here's a paper we've been working on for some time. Essentially, we looked at differences in failed vs successful SE communities on the same topic (e.g. failed vs launched Astronomy SE) and tried to identify what made them different in the early days (first 6 months).

I hope it may be useful/interesting to those interested in (q&a) community building.

Here's the abstract:

Knowledge-sharing communities are a fundamental element of any knowledge-based society. Understanding how they emerge, function, and disappear is thus of crucial importance. Many social and economic factors influence sustainable knowledge-sharing communities. Here we explore the role of the structure of social interactions and social trust in the emergence of these communities. Using tools from complex network theory, we analyze the early evolution of social structure in four pairs of StackExchange communities, each corresponding to one active and one closed community on the same topic. We adapt the dynamical reputation model to quantify the evolution of social trust in these communities. Our analysis shows that active communities have higher local cohesiveness and develop stable and more strongly connected cores. The average reputation is higher in sustainable communities. In these communities, the trust between core members develops early and remains high over time. Our results imply that efforts to create a stable and trustworthy core may be crucial for building a sustainable knowledge-sharing community.
Prospect Lefferts Garden and Bedstuy. Given we are sharing anecdotes, I've seen my single mom neighbor shout at a group of ten men because her daughter hadn't properly slept for weeks because they thought it was fun to play with firecrackers at 4am. Apparently her daughter was cowering in fear and unable to sleep.

They just laughed at her and kept fooling around with the firecrackers.

Next day I asked why didn't she call 311. She had been doing so for months, the police never showed up. The resolution of the incident was "not enough evidence found to sustain the complaint", or something along those lines.
Outliers aside, a big difference between skateboards and cars is the kind of sound a skateboard makes. It's typically a lot less uniform just rolling on the pavement, with "random" sharp sounds if they're doing tricks or similar.

For me at least this is a lot more annoying or stressful than a loud but uniform sound, even if it's louder than the skateboard.
I’d love to see Tickmaster’s blockchain+NFT system for how horrible and anti-user it would be.

I agree with both points. For a while it seemed like small venues were using indie $1 ticket processing services that would basically just generate a QR code and keep everything cheap. But those seem to be going away as Ticketmaster just takes over and turns a $1 transaction into a $20 transaction.

If venues just used Shopify then they’d have their db+api solution. But I think vendors like being able to 1) reduce their work, 2) blame Ticketmaster for all fees, and 3) make more money.

For the same reason vendors don’t use api+db, I don’t see them using a blockchain.

Another reason is that blockchains are forever and I don’t see the value in a huge blockchain with mostly garbage data of tickets sold 50 years ago. This seems like a really unnecessary expense for something simple like temporal transactions that are meaningless after the event.

An api+db can be flushed out so the storage costs are very low.
Looking at the author's response to this through the lens of my own occasional anxiety I wonder if they're having a bit of a small-to-moderate breakdown over the situation.

I find it easy to get tangled up in the pedantry of correctness sometimes, and see things like security as effectively binary (99.99999% might as well be as good as 0%). Simplifying things down that way makes for a very mentally straightforward (black and white) way of looking at things but simply does not gel with human imperfection in practice.

I accidentally left Xvnc running "for a quick thing" on my VPS once to find it mining Monero when I returned later and wondered why it was a bit slow. That taught me a few good lessons - like the security ramifications of the "once you've started you're on a roll" mental intertia thing, which can intuitively turn something I anticipate to maybe take 30min into something longer once I'm over the hurdle of starting it; but it also taught me that I'm a bit OCD about intrusions, and (despite the fact that whoever found the VPS was likely more interested in XMR than the boring files on it) I still completely nuked it and reinstalled from scratch... because of course I had NOPASSWD in sudoers :/.

So I empathize with total local device compromise, which would hurt. But by the same token, it may be singularly effective to grab a favorite/preferred device, reinstall just that, turn everything else off (and maybe even notifications as well) for a week or two, and just decompress.

I've never actually heard of this project before (anything involving video with my hardware/internet connection = not going to work lol) but I can easily see that it's up near the top in terms of competence and execution at what it does and the niche it fills. The resiliency that comes with that will probably take more than a week or two to put a dent in, FWIW.
I'm not sure what you're talking about, old.reddit.com still let's me comment.
What country is this? I just moved to India from the US and was surprised that it was 9-6 here instead of the 9-5 I was used to. And everyone here is used to overworking.
For littering? Absolutely
So weird, this part about validating for DRPK workers:

Conduct a pre-employment background check, drug test, and fingerprint/biometric log-in to verify identity and claimed location.

Background check, sure. Fingerprint/biometric identity verification? Lol. I would never, ever submit to such a thing. DRUG TEST? How the hell does that catch DRPK workers?
Solidcoins are great deal for issuers if solidcoins. At any point they can just take their money and run. And it would be a smart choice given to what happened to money that tried to keep UST peg.
That's an alternative way to implode as a nation.
5G is completely useless in The Netherlands for the time being (until at least end 2023). You can safely ignore it if you're from NL. In other countries, how useful it is going to be depends on your use-case. For example, German autobahn has good 5G coverage.
Yeah, until you hit the parts of the UI that aren't translated from German or have to return stuff and the vendor only communicates in German and the auto-generated emails are in German and the vendor feedback list is in German and th4 reviews are in German...

They're not ordering from amazon.com (US), they're probably ordering from amazon.de with a thin layer of English translations + autotranslations.
I wonder if aligned multi line equations would work (I mean eqnarray or aligned environments in latex)
Uh huh, yeah, it's the "rednecks" who are jumping turnstiles and smoking weed and blaring loud music. Sure.
Exactly, but people just love to parrot it. It'd be like taking banking hours as the norm here.

> Bob Diamond on brutal working hours for junior bankers: ‘I’d do it again in a nanosecond’ [1]

[1] https://www.fnlondon.com/articles/bob-diamond-on-brutal-work...
As I've read in other reddit thread, it depends on your lifestyle.

Have activities after work, near work place, especially with work colleagues? 5-6 days with low hour daily.

More time to do chores and rest at weekend? 4 days work weeks
Please explain how you’re going to make me whole if your car without auto breaking kills me.
Or we build skyscrapers 30% higher.
Sudbury is quite amazing: if not for one 'little' accidental impact that whole city would be 1/100th the size it is.
> Even the discrete-ish Iris Xe graphics are surprisingly fast

Anyone have any idea how well this stacks up against RDNA2? I'd love it to be close enough to not have to worry much about, but from what I hear AMD have it significantly better
At my last workplace I had to work number of working days in that month * 8. So Op could have worked Monday to Saturday 6 hours and 4 hours on Sunday if he was a colleague of mine.

I'm all in for either shorter working days or fewer working days, provided that stuff is still done. I think I can do what I do in 4 hours at most. At least 4 hours are lost.
Or wood.
There are “significant and harmful externalities” to authoritarianism, too. Have you considered them?
Cannot duplicate.

Works fine, logged in, switch to old.reddit, pages, commenting all fine.
Fun fact: the Lightning whitepaper is now older than the Bitcoin whitepaper was when the former was published.
The world’s biggest shipping lines are taking to the skies
https://youtube.com/watch?v=HyzD8pNlpwI&feature=share

“The ultimate gameboy talk” from 33c3

Beautiful and inspiring.
100% agree, I personally would probably have the same weekly productivity in 965 vs 996. Brain resting is pretty important.
For what it's worth, I believe Cosmopolitan Libc's --ftrace overhead averages out to 280ns per function call. That's the number I arrived at by building in MODE=opt, adding a counter to ftracer, running Python hello world with the trace piped to /dev/null, and then I divided the amount of time the process took to run by the number of times ftracer() was called. Part of what makes it fast is that it doesn't have to issue any system calls (aside from write() in the case where it needs to print). As for the overhead when ftracing isn't enabled, I believe there is zero overhead. The NOP instruction in the function prologue is nearly free. I recall reading reports where the instruction timings for these fat nops is like ~200 picoseconds.

Most of the overhead comes from the fact that it's using kprintf() to print the tracing info, since I'm happy to spend a few extra nanoseconds having more elegant code. So it could totally be improved further. Another thing is that right now it's only line buffered. So if it buffered between lines, it'd go faster.
Somewhat tangential but I’ve been enjoying using HackMD for creating nice looking math notes that can be shared with selected folks.

https://hackmd.io/
> I think it's great, but honestly, placing it at 15€ would have made only a little difference

The ticket exist to relieve citizens due to rising energy costs

What a nice idea to double the price! i suggest to triple it, so they can make even more profits!

Wait, i suggest aligning it to the cost of a similar travel with a car!

Are you american by chance?

https://www.stoag.de/en/dialog/neuigkeiten/detail/9-euro-tic...

> We support the idea of the traffic light coalition to temporarily relieve not only drivers, but also the millions of public transport commuters in their mobility costs. It is a clear signal for local public transport as an efficient, climate-friendly and already inexpensive alternative to the car. The industry is working on a technical and entrepreneurial solution in the interests of passengers. The ticket is to be launched nationwide on June 1st.
It might happen in the next 6 months. Be ready.
I just recently learned that this attachment is intended. I always thought it was a production flaw.
Also, HN readers. You can enjoy the thread without upvoting the post.
Thank you, Vizzini.
Performance and presentation is better but content is worse - that's the way of the internet it seems.
I'm sure a lot more of these trials will be pushed now that safety monitoring/controls and study quality requirements were relaxed so eagerly for the covid vaccines (and I mean well past the point of the initial unknowns that require leeway).

These companies can see dollars as far as they can imagine and public perception has swung incredibly from the lowest of trust groups to the higher brackets.
You should look at >10 year graph with a log scale. What happens now is mild.

Tou can do that here https://www.barchart.com/crypto/quotes/%5EBTCUSD/interactive...
I had writer's block for quite some time. I spent two decades thinking it didn't really exist and was just an excuse, but sure enough it came to bite.

Harmon's advice is excellent.
YC has never invested particularly morally knowing many of their founders and companies. I wouldn't say it's their strong suit.
Ask HN: Is Intel doomed? They’re still unable to compete with efficiency of M1
Jira creates so much friction. It's a trillion dollar drag on the Tech industry. It should be as quick as writing a Slack message.
A significant percentage of the noise is being generated by people who live outside the city and drive in.
> Authoritarianism is a form of government characterized by the rejection of political plurality, the use of strong central power to preserve the political status quo, and reductions in the rule of law, separation of powers, and democratic voting.

From Wikipedia. Not sure how limits on pollution are anything like that.
At least in Australia the lids are considered too small to recycle as they are too light and blow around so you’re supposed to put them in the rubbish. They had also traditionally been a different plastic which sometimes was an issue.

So it does truly potentially help in the recycling regard. Note however the professing facilities and requirements for this vary wildly from state to state and country to country and also they often ask for a lowest common denominator of all the recycling plants. So it’s not that some places potentially can’t but not all.

Leaving them on also causes issues because if the bottles are air right they don’t compress as well.
Having spent a lot of time in the Bronx -- these selfish people are an absolute nuisance that do a lot to damage the quality of life for everyone else in the neighborhood.
Apple patches dozens of security flaws with iOS 15.5, 50 fixes for macOS 12.4
That's a YC page ("they are talking"), not an HN page ("we are talking").

We already knew YC's ethics -- they proudly look for "naughty" founders who "hack real world systems" for personal gain.
Doesn't sound negligible to me:

> In longer tests, both drives decrease sharply in performance as cache fills, which is expected. But while the older drive retains nearly two-thirds of its original performance, the newer version craters to less than a third. We can see this effect not only in artificial benchmarks, but also in large file copies [1]

While changing SKU is one step better than other manufacturers, it's still a shaddy behavior keeping the old name.

[1] https://arstechnica.com/gadgets/2021/08/samsung-seemingly-ca...
On my thinkpad, I've found it most useful to additionally set a start charge threshold much lower than the charge limit. My use case only sees a handful of minutes without charger per day. With charging starting at 40% and ending at 80%, the battery gets charged sometimes as seldom as once per week.
And it'll still be worse than the classic, returnable and reused, glass bottles.
pro: you are not dependent of grotesquely and absurdely massive and complex compilers, until you don't over abuse the preprocessor.

and that alone...
Election where major opposition parties were banned? A democratic society where 40+% of population is not allowed to use their own language? When opposition leaders get arrested? Where almost a 100 people were publicly burned alive, and still no one is punished? Where right wing extremists / neonazi paramilitaries are incorporated in an official army and given a licence to kill, as documented by OSCE multiple times in eastern part of the country? And all that happened before this war. Just that they now fight Russians doesn't mean they are democracy, they are just a useful enemy of an enemy.

And the list goes on and on, although only one of the mentioned things would be enough to consider such a country as non-democratic at least.

I think corruption and a rule of oligarch is the least problem in a country like that.
> but it does have some implications for culpability

In many jurisdictions around the world, there isn’t much of any difference between “directly handed the loaded gun to the killer” and “pulled the trigger and killed someone”.
The first time I ever saw any number of skateboarders was in Barcelona and I COULD NOT BELIEVE how loud a bunch skateboards rolling through the street was.

Even in the middle of the day it was deafening with closed windows. Every single person on the street turned to see WTF was happening. They immensely enjoyed doing it and the attention, and made sure they migrated in groups of 20+. The apartment was nearby the local art gallery where apparently they hang out and it was beyond awful.

Absolutely shocking, obnoxious behaviour and I'm so glad skateboards aren't a thing in my country.
I live in the suburbs, and the trash man comes at 3:30am. I kid you not. Drives us crazy.
You’re describing a place that isn’t fit for living. As a a parent, I feel horrible for your neighbor. Genuinely curious what prevents people from leaving. Is it a lack of resources?
Yes, I agree. Visit at any big German city on a Sunday. It is a semi-religious tradition to be quiet on Sundays (and national holidays). Even as a tourist, it was impressive! And, Germany also heavily regulates aftermarket parts for cars -- so there are almost no "rumblers" to be heard.

Tokyo is also amazingly quiet for its size and density. Just one block away from any major thoroughfare will be pleasantly quiet, but can have a lively high street with shopping, restaurants, bars, and cafes (called "sho-ten-gai").

A long time ago, I read a study about noise from high speed roads (freeways, expressways, auto-bahn, etc.) and the effect on people who live near them. They have (statistically significant) higher levels of stress, and all of the negative mental and physical effects that come with it. This is one of the major benefits from using special low-noise cement or asphalt, or trees / shrubs / barriers to reduce noise effects on people who live very close.

Finally, I'm excited for a future where more cars, trucks, and buses are electric. It will certainly make cities more quiet and livable.
Sorry that I was a bit aggressive. Cheese is a Very Important Matter. :)

I noticed "Fancy cheese" (not velveeta) showing up regularly in the 2000s, when I was starting to shop for myself, and as my cheesy experience grew, "good cheese" like the better stinky ones were more available probably 4-5 years later. Now, even in my local supermarket which is considered the "worst" of all the grocery stores in the area, I can get authentic cheeses from a variety of places.

I don't think people's tastes evolved as much as the supply chain for getting these cheeses around has improved much in recent years, making tasty cheese super affordable.
I like what you wrote and here is my perspective as a mathematician.

A lot of the notation is due to legacy and common practice. For instance, we write y=f(x) and think of x as the independent variable. If I switch it around and write x=f(y) that would confuse a lot of people (especially students and non experts). In one sense it doesn’t matter what letters I use but in terms of how things are normally communicated it does. If I break with tradition this causes a cognitive burden on the reader and that detracts from the purpose which is to communicate ideas. Also, the people who come up with a new idea tend to be the ones who decide on the notation.

After using it for a while one acquires an intuition about the notation. When I see lim I think an infinite process is being described. That could be the limit from calculus or the direct limit in algebra. The result of how things have developed is that we end up with some things that are nonsensical if taken literally but do make sense as they are used.

For instance it is nonsensical to say that x=1 is the solution to x+4=5. What is really meant is that both equations have the same solution set and it’s easy to see from the first equation that this solution set is {1}.

Shakespearean language is weird to modern speakers of English even though it is correct English. In a similar way I think mathematical notation/usage is like a spoken language. One gets a feel for it after learning it and using it for a while. There are unwritten rules that people abide by to facilitate communicating ideas. I imagine a similar thing is true for programming languages.
Following 6 months will be a great time to buy crypto.
Pharmaceutical companies always chose Africans for medical experiments
Yea, glad you can lower contrast setting on your monitor and leave normal contrast to the rest of us.
Except city life can be comfy and quiet. It’s not like there aren’t cities that have successfully tackled this problem. See Delft: https://youtu.be/CTV-wwszGw8
People are realizing crypto has no use beyond store of value. It's a solution looking for a problem. Crypto and Defi are a joke.
Ploomber (YC W22) Is Hiring Remote Software Engineers and DevRel
Um what? What do you and the other posters think anti-social means? Is this something native english speakers are confused about?

https://en.wikipedia.org/wiki/Anti-social_behaviour

>Anti-social behaviours are actions that harm or lack consideration for the well-being of others.
Fwiw, on log scale there has been a pretty solid price channel for the past 8 years. It has only been broken twice. One was the covid low, when the price was rescued by fed printing. The second time is now. Not sure what is coming to save the price this time.
My all time favorite was 1492 Conquest of Paradise. I still listen to it here and there.
RIP :(
> our solidarity has limits.

That's more like flexabiledarity than solidarity.
> Do you mean that just the end of the last season was bad, and it was so bad that people immediately stopped talking about it when it finished?

Exactly this. Pretty much no other show has disappeared so completely from the zeitgest after it was over. People are actively not talking about it and aren't recommending it to their friends because of how very very very bad the last 1-2 seasons were.

Regular fans without meta knowledge got pissed about the bad and ill-fitting ending to their favourite story. The one that they had watch-parties for and theoretised with their friends between episodes. Even during COVID lockdowns when everyone had watched everything on every streaming platform, no-one bothered to rewatch Game of Thrones.

Mega-fans knew the behind the scene things. Like the fact that HBO was literally throwing money at Benioff & Weiss to make two more seasons in order to finish the story according to the original plan they agreed with and GRRM approved. But they wanted to go make a Star Wars trilogy instead so they rushed the ending. Which went so badly that Disney dropped them from the planned SW project. Now they're doing a Three Body Problem TV show for Tencent, because no western studio would hire them.
I would much rather work longer hours (even 10) and get an extra day off each week. However, shorter work days with no productivity loss are likely possible for many companies simply by cancelling unneeded meetings.
I’m nosy sure I agree. There definitely isn’t a “one-size-fits-all” to writing Rust, but I do think that falling back to a “error here? try .clone()” mentality ends up defeating the purpose.

Maybe what Rust needs is a “build a program with lots of allocations” and then “whittle down allocations with smart use of references” section of the book.
https://news.ycombinator.com/item?id=31440931