skysight-inc/HackerNews huggingface dataset:
The undirected graph is isomorphic to this bipartite graph:

U: { a, b, x }
V: { e1, e2, e3 }
E: { (a, e1), (b, e1), (b, e2), (c, e2), (c, e3), (a, e3) }

> But while that's technically true, that's also not really what people mean.

Not sure who these people are, but there are definitely cases where the bipartite form is useful.
>It doesn't help that I personally have yet to see a use for a blockchain which isn't replicating an existing financial instrument while trying to avoid the eyes of the state.

I mean, there's a domain name system. There are various games. There was recently a high-profile crowdfunded attempt to buy an artifact at auction. Feel free to be skeptical of all of these, but what's the point of posting that you "haven't seen" anything legitimate if you're unwilling to exert a bare minimum level of effort to research other use cases?
Shout out for WACUP. Just found out about it recently and was pleasantly surprised to see Doctor.O was behind it. Now there's a name I still remember from the old winamp forums. He was a developer for Winamp until the end of the AOL days.
16 GB M1 Air here and it's stuttery (stalls for 1-2 seconds). And yes, overall horrible.
I was leaning more towards curriculum that trains being able to feel and act on empathy. You know, like art or whatever.
MVP fair enough, but somewhere along the way there I'm pretty sure you'd be losing money an awful lot faster than Telegram is.
Should Mozart have been kept away from musical instruments because his peers weren't at his level? In other words, should people existing define how we educate prodigies? Who gets to determine who is a prodigy and who isn't, and at what age?
Ah that's right. I should have just written in out rather than just adding 4.
So delving into the Iliad is communism now. You could benefit from some basic education
> "Students are required to “show their work” in standardized, prescribed ways" is a manifestation of white supremacy?

“White supremacy” is an accurate but excessively polarizing term; “cultural favoritism in favor of status quo elites, whose preferences and cultural practices are encoded in the prescribed methods of demonstration” would perhaps both be less inflammatory and easier to see the connections between the specific practice and the broader problem.

> I'm pretty open minded about education pedagogy, but you completely lose me (and 99% of teachers) when you suggest creating TikTok videos

I think the particular examples are not because any of them are individually to be preferred but because providing a range including them illustrates the general principle, which is “provide students a broad set of mechanisms to demonstrate understanding rather than a narrow set of forms, as the latter introduces cultural biases based on comfort/familiarity with the form, both for the child immediately and among parents and the rest of the support network on which they rely.”
Another good book. Crouse describes some of the same scenes as Thompson, which is always a fascinating thing.
NYT: My Book Was Censored in China. Now It’s Blacklisted – In Texas
I use Affinity's apps and sometimes Krita, and Procreate on iPad for drawing. I haven't been able to completely switch off of photoshop yet, not because of features just because I am so used to the workflow for a lot of things, but it's a goal for next year.

I've been a super loyal Adobe fan for a long time. I would probably have kept using PS forever if they had just literally stopped developing it, but between moving familiar feature (randomly changing how scale-preserve aspect works??) and breaking everything (zoom and navigator is just super flaky nowdays, the text tool is completely bonkers lately). Some of the stuff they added is useful, the embedding "smart layers" was helpful for a few things but caused me some headaches too, but I don't really care to relearn everything.

They're really bad at the "We made this better" thing, for example, the new brush tools are certainly better and i guess a big improvement, but was doing a lot of digital painting years ago and now just use it occasionally and I don't know how to use them, and all the old skills I had are gone. I'm sure I would agree that almost every change would be better if I had the time and motivation to relearn them but, if I have to take the time to relearn something I'm just going to relearn the hot new thing (like Procreate) instead.
previously posted https://news.ycombinator.com/item?id=29313571
It bears on the signal-to-noise ratio.
That's awesome I always wanted to talk to a St John's alumni. I heard most universities have a "great books" style course, do you know the difference? I'd love my daughter to do something like this.
Be careful, though; this isn't necessarily the case on costco.com.

For example: https://www.costco.com/theradome-evo-laser-hair-growth-devic...
I was playing fast and loose with dates and ... facts!

I made a model of the ME163, whilst living in West Germany back in the 1980s. Not to mention the rest of them: Spitfires, Lancs, Dorniers, Focke Wulfs, Heinckles (111) Arado (234) Blenheims, Bristols, Mossies and more.

The ME163 was an absolutely insane thing. It took off on a weird cradle and was powered by an incredibly nasty fuel. One of its pilots was dissolved by the stuff (see the WP page for details)
Funny coincidence, I just started watching Broadcast Signal Intrusion[1]

1. https://www.imdb.com/title/tt11151336/
https://archive.ph/1ztDp
That’s because it’s a mechanical device owned by a single large international company.

You can’t “engineer away” a virus.

The airplane analogy only makes sense of you say the result of investigation is to apply international sanctions against countries who continue to manufacture unsafe aircraft and fly them domestically…

…but, you have a) arguably no business telling them what to do in their own country and b) how are you even going to know, since those aircraft never visit your country?

Ie. yeah, great concept, but it’s so disparate from what we’re actually talking about it’s meaningless in this context.

It won’t fix things, or make things better knowing where it came from.

The only wins will be ideological.
You seemed to have found a loop hole, you should open a retail store and let everyone steal your stock instead of actually selling goods. Let us know how profitable you are.
They’ve broken their “no ads ever” promise by implementing this change, so clearly their promises are useless.

That aside, this is terrible product strategy, because everything any normal user will hear is “Telegram has ads now”.

Personally I think they are vastly overestimating their position, but we’ll see. I’m not impressed and will probably stop using it.
I'm not going to paste 170 lines of code into the thread. Add this line:

var pool []Tree

to each of the stretch and long-lived closures in run(), pass &pool as the second argument to bottomUpTree(), pass pool as the second argument to itemCheck().

The call to inner() doesn't change.

It's trivial.
I always thought the “Dollar Store” was a poor name given the fluctuation of the dollar over the years.

Then again, it’s a damn successful business. I wonder how much the name actually had to do with it becoming established vs. the price point.
Chubby, not cubby. And I also thought it was weird that the author referred to a piece of Google internal infrastructure to describe a piece of Facebook internal infrastructure... how many non-{X,G}ooglers know what Chubby is?
This will make life even worse for the marginalized students as well off students will have parents or other sources of learning algebra.
Cloud9 didn't fail, it was acquired by AWS.

https://en.wikipedia.org/wiki/Cloud9_IDE
> How does one go about learning about these things.

A very good question that I don't have a good answer to. Management likes that there's a steady stream of new people who don't know that there's a bunch of tricks that get used and so everyone learns them the hard way.
I don't really get how you can be a mathematics teacher and not know enough to be able to teach calculus? Like surely you've done calculus yourself?
For a lot of people, the price is not the problem, being able to get the money to where it needs to be is.

This is almost never a problem in Silicon Valley and rarely a problem in the US, but most definitely a thing in other countries.

For example, in Poland where I live, we have some really advanced online payments systems that we use locally, but none of them are supported by either App Store or Google Play. Because those systems exist, paying on line with a debit card (credit cards are much less of a thing here) just seems strange, especially if you're 30+, non tech savvy and don't speak English. A lot of people refuse to give their credit card number to anyone because they fear it might be stolen.

There was a survey by one of our audiobook streaming companies (Storytel), and this is indeed a big problem. If I remember correctly, about 90% of users who signed up for an account but churned at the "choose your payment method" step cited "won't pay with a payment card online" as the reason. Since our payment systems aren't compatible with subscriptions, they needed to add a way to subscribe through your phone carrier.

This is probably the reason why What's App never got much traction here. Instead, people went with Messenger, which was always free. It also doesn't require giving out your phone number, something we seem to have more issues with, as compared to Americans for example. What's App is usually known as the app you use to talk to family members abroad, Messenger is the thing you use for everything else.

There are, of course, other reasons why you might not be able to get apps / subscriptions. Being underage is probably the most common one, once again, you probably do have money, but it's probably in cash.
One thing this article fails to mention is currency devaluation. All this price (and revenue) growth is in USD. If holders of USD are considering it as relatively less valuable in the future, they'll bid up an asset they see as more stable. I see cryptocurrency prices similarly, it's not that bitcoin is super valuable so much as people are afraid to hold USD in the face of inflation.
In order to teach everyone the same thing you can only teach as much as the stupidest and least motivated person can grasp.
not sure what it was supposed to be but by ythe first time ever I've seen this message:

> Application error: a client-side exception has occurred (see the browser console for more information).

And on the console:
> Error rendering page: TypeError: t is undefined
> but what am I going to do about it? They have billions of dollars and I had no money.

There are still many options. You just have to search harder...

> On the bright side, the new CEO ran the company into the ground.

And this is the real risk. There are plenty of legal ways to make stock worthless.
Many decades of the lived experiences of children in other countries disagrees with that research. Children in eastern European countries learn advanced concepts from as early as second grade. In asian countries they are introducing Algebra in 6th grade or earlier. This is the problem California finds its self in. They have wonderful "research" showing that kids pick up the concepts better if you wait till they are older, but they ignore the lived reality of the rest of the world, that with the correct teaching you could actually have them doing this work at a much younger age.

Even here in America, tutoring schools such as Russian Math or Kumon are successfully teaching advanced topics to children at much younger ages than the public schools. I know the temptation is to just say its its high aptitude kids that are being sent to these after school programs, but it's not. It is just rich kids whose parents want to give their children a leg up. Almost all children could learn the topics, but we won't put in the effort
Maybe instead of focusing on mobilecoin integration they should work on some of these important things. Their credibility already took a dent because of that
I concur with you
> There is a reason why "meta", Google and amazon are expanding engineering over here and the wider EU: lots of (comparably) cheap talented labour.

Yeah, I moved from London back to NYC after Brexit and literally got a 100% raise. And London is well above the European average.
I didn’t even realize MediaTemple was still around. I figured godaddy just fully engulfed them when they took over.
No one is saying tests 'have nothing to do with knowing the material'. The point is that a test environment isn't ideal for gauging how well someone knows materials.

Our system of testing incentivizes teaching to the test and a focus on pointless memorization.

Our schools aren't supposed to be competitions, at least not primarily. Comparing them to athletics events is silly. If we wanted to find out "who is the best at taking test", then a test is the most appropriate tool. If we want to find out "Can Timmy do geometry", a classical closed-book, timed test isn't the best measurement.

It comes down to, what is the point of testing students? What is gained by restricting access to clarifying materials or enforcing arbitrary time limits?
You sell them.. returns on their money. That's the whole point, right?
https://en.wikipedia.org/wiki/Audacious_(software) supports Winamp 2 skins well, including the default Winamp look.
One interesting misrepresentation is this: “ Several innovations in distributed consensus design make Solana’s performance possible.”

Solana’s consensus protocol isn’t responsible for its performance, it’s the fact that they mandate higher performing machine SKUs and at least 500Mbs (recommending 1Gbs) internet speeds. They also had to largely centralizing and have around 1000 validators. Ethereum’s fees and performance are due to a push for decentralization instead of cranking up the max gas per block to a level that wouldn’t be feasible for someone at home to run a node.

I’m not sure why I’d use a blockchain that’s very close to being a centralized service. That’s the worst of both worlds, you don’t have censorship resistance you get with Ethereum and you don’t get the consumer protections you get with fully centralized services.
Maybe you are talking about Custom Vision, but I'm not sure. I want to add that AI tools have become more popular and sometimes it is even frightening how intellectual some robots are. I'm a web designer and I've recently checked AI website builders out https://www.webbuildersguide.com/best-website-builder/ai/ They turned out to be very interesting to work with. And I'm sure they will make people's lives easier in the future.
Depends on the price, of course. Compare the per-unit prices, your warehousing costs, and the interest rate on the loan.
My interpretation:

When most kids can’t do algebra, the teacher invests most of their time into helping those students catch up. Because most of the teachers time is now going to students who don’t understand algebra, algebra gets dropped all together. Minority high achievers who were capable of understanding algebra now feel that they are held back by low achievers.

High achievers should probably check out Khan Academy or similar…
> You should evaluate the investment just like any other investment

Except it's not like any other investment. It's an investment that you are too close to. You can't think 100% objectively about an investment that you're too close to. For many people the solution is unambiguous: If I can't be objective about a decision then the answer is automatically 'no'.
Cocaine is a local anesthetic AND a vasoconstrictor. So some surgeons will rub it into a cut to stop both bleeding and pain.

Sure seems like it would be handy to have in a first aid kit, if it weren't for that pesky euphoria!
I’m not sure why you’d feel bad for knowingly manipulating a bunch of people who, if you don’t, could decide to replace you in your job. These aren’t your parents, or your priest.

Put it another way: replacing “manipulating” with “managing” — this is just about managing up as the CEO, and it’s pretty basic advice at that.
In what ways are the (current) traditional models in public education "proven"? Genuine question.

Speaking of ethics, it doesn't seem entirely ethical to force students to memorize a bunch of facts (chosen by whom?) and regurgitate them for arbitrary grades for over a decade, as if that has something to do with education. Certainly there is some lasting psychological damage inflicted by that methodology.
Sorry, I didn't mean to imply that fighting poverty would solve all issues by itself. However, its unclear to me how reducing poverty wouldn't help? I know its not related to the specific topic, but for example many people of color drop out of college because they cannot afford to stay in or feel obligated to help their families in time of need.

https://www.apa.org/pi/ses/resources/indicator/2014/06/child...
It seems like alleviating poverty will help? It also just feels... obvious?
Hello HN! Author of Blueboat here.

Blueboat was originally named rusty-workers and used the Isolate model for workload isolation, similar to Cloudflare Workers. Later I changed to use process-based isolation because it seems that a shared-process multi-tenant system is overly complex for self-hosting users like myself to operate (automatically applying security patches within hours, sophisticated scheduling strategy to prevent ill-behaving applications from crashing the process, auditing each dependency for memory safety issues, etc.).

Blueboat is not yet optimized for global-scale operation but it is definitely the goal. Things not implemented include: custom TLS termination (which enables 0ms cold start), HTTP routing, and a single dashboard to operate the entire system.

Currently, the user needs to set up their own infrastructure for deploying Blueboat globally:

- Cross-region replicated S3-compatible storage for distributing code and config.

- Kafka instance at each region for log collection and task scheduling.

- A way to route traffic to a nearby location (usually DNS / Anycast).

- Log aggregator (I use ClickHouse for this).
yeah but presumably if you aren't over leveraged, who cares. I plan on staying put but if the housing market crashes I'll just buy the even bigger house above me on the hill with a view shrug.
You are correct that 30 is on the high side, but I have seen classrooms in Philadelphia with 30 students to a single teacher ( 3rd grade, during the 2005 school year so it may have changed since then). However even at lower ratio's the point remains, you need to hand hold the kids, and we don't give our teachers the time or flexibility to do that.
Let me raise a counter-question.

Who was patient zero for COVID-19 in the United States, where did they travel from, and where did they travel to? When did the first case arrive in the country?

Why isn't access to this data available? Why would access to this data be denied? Why isn't the United States sharing this information with independent auditors? With its journalists? With the world?

Is there an ulterior motive to this secrecy?

If the US can't, or refuses to figure out who its patient zero was, why do you expect China to be more successful at this sort of endeavor?

Perhaps it's because figuring these sorts of things out is a little bit harder than one might think.
What was even the endgame here? If you successfully claim you were acting as an agent of a foreign government (many of them, in fact!), surely that's the kinda line of thought that ends with your employees arrested at every airport and border?

Why is this even in civil court. How can the CEO of this company be in the US at the same time as his company is put on the sanctions list and still board an airplane out of the country after? Why are banks discussing with the sanctioned entity how to best unroll their debts?
Right, in design shock and vibration are basically 2 separately requirements, analyzed and tested separately. Sometimes by analysis it is shown that vibration test levels "cover" the shock requirement, but a spacecraft that is the first of its type, and with many mechanisms is likely to undergo discrete shock testing.

Minor addition to your reply, design typically avoids similar natural frequencies to the launcher, but the design needs to be compatible with the loads resulting from vibration as

It sounds like the clamp band was accidentally released just after installation, thankfully in a position that didn't drop the spacecraft somehow. The input shock is more like 1000G for these things, usually the largest source of shock for a spacecraft. Of course, it's designed to be released by the same mechanism, although it would not be designed to be released an unlimited number of times. I would guess they already know the components which are critical for shock, and will inspect and/or function test those before proceeding. Since it was an unplanned event, even documenting that it happened and getting everyone to agree to proceed based on the spacecraft having been designed for that input shock, takes at least a few days.

It does not sound like a larger than design shock was somehow applied and they have to check everything at spacecraft level analysis. That would take at least several weeks.
I suppose this could be solved by having non-linear energy pricing. I.e. if you use up to whatever your total consumption should comfortably be as a person, you pay the regular rate. Once you hit what would be considered unrealistic consumption, you pay twice the rate or so.
9th grade? This seems ludicrously late to me. I had algebra introduced in third grade (8-9 years old) and had a far easier time throughout school as a result. I've since gone on to have an interest in mathematics in my adult life. What reason could there possibly be for delaying its introduction until so late in one's school life?
2. Ok, it's not xterm. What is the VNC server/client? I don't see on in the code. When you use replit, what will cause it to trigger a magic VNC client? What if I want to try a different VNC server to speed it up? When will the VNC close...there's a lot of magic that I as a developer can't really work with and doesn't seem to be documented.

AFAICT, this demo is equivalent to, "someone ran VICE in a VNC". I think that's the OP's point.

It isn't even clear what VNC (or what its performance profile is).
Copy pasting stuff from TG doesn't bode well for Signal.

Signal merely replicated TG features - Secret chats and made it mainstream.
It uses AWS for cloud hosting, and I don't trust AWS as an intermediary for routing chats. There are red flags all over!! There's nothing new in Signal, AT all!
Learn React Animations by Creating a Stripe Inspired Menu
The best part about debt deals is that if the company collapses, you can take over all IP as it's the only asset worth anything.
But it turns out that if you believe math is everywhere, then creating videos or cartoons to illustrate math concepts is actually kind of reasonable.

For instance, my kid drew a rather detailed human face in the desmos (http://desmos.com) graphing program using line segments, quadratics, cosines, and sines.

Doing this teaches you about what the graphs of these functions look like, and how to translate/scale/rotate the axes to get the curve you want.

It's basically like parametric typography, or SVG.
Ditto, 7th grade in Colorado. Yeah, they called it advanced, but they called everything advanced. You know the drill: grade school math is always "advanced," grad school math is always "introductory."
No marketing expense.
500 million+ users purely on the word of mouth
https://en.wikipedia.org/wiki/Messerschmitt_Me_163_Komet

O.o

"""

[M]any pilots were killed during testing and training, at least in part due to the highly volatile and corrosive nature of the rocket propellant used in later models of the aircraft. This includes one pilot, Oberleutnant Josef Pöhs, who was *dissolved* by the rocket fuel following an incident that resulted in a ruptured fuel line.

"""
his money is not unlimited though

Telegram is burning at least $100m a year
Texas/Florida, the bastions of intelligence