skysight-inc/HackerNews huggingface dataset:
Math professor here.

I see students hit a wall in linear algebra, very good at "trained seal" but profoundly resentful that the time has come to go meta: Part of one's learning has to be investment in reflection and experiment on how one learns.

They generally believe that intelligence is innate, not deliberate gardening. There were thousands of people with Michael Jordan's body (alas, I'm not one) but he spent decades creating the athlete he became. Einstein found math difficult. It's like running: If you find running boring, you're not running hard enough. Math is a constant struggle, like mountaineering, and you shape, invent your mathematical mind. Those of us who love math (or mountaineering) are drawn to the struggle.

One syndrome I've seen often enough to classify: A student is uncomfortable with their calculus background. They want to pick the hardest calculus book they've heard of (often Apostol) and retreat to a desert island till they've mastered every word. I cringe in horror, and try to explain what's wrong with this approach.

It is widely observed that grad students learn four times faster than undergraduates. My first few years of grad school, it felt like I doubled what I knew every year. It was profoundly depressing when this subsided; I could have "been someone" with just a couple more doublings. What was going on?

Grad students learn what they need any given day, for goals they've set for themselves. Undergrads are taking on faith what authorities say is good for them. It's far easier to understand something when you see the point as you're learning it.

I know few mathematicians who read math comfortably, as if reading a novel. We mostly get angry and go think on our own, then return to realize that's just what the article said. Communication conventions in math are horrendous; one writes crappy machine code, then asks the reader to reverse engineer one's thoughts. Anyone in the tech sector knows how easily reading someone else's code can be "just kill me now" territory. As horrendous languages go, mathematical notation is a profound achievement. Nevertheless, beginners feel inadequate when faced with the inadequacies of mathematical notation to convey intuition.

If one wants to learn math, one needs to learn how to play, whatever that means. Find anything whatsoever in the text that leads to an example one can expand beyond the text. Does the text remind you of a pattern you've seen elsewhere? Perhaps the author just isn't saying. Play on your own, trying to decide if the ideas are in fact related.
Traffic jams just a math problem, says Israeli AI firm
I mostly use functions not aliases but I’m not that much of a power user.
I'm always wondering what's the rules for using pictures/ art/ etc. for inspiration. Specifically where the border is between inspiration and heavily inspired (almost copied).

Edit: Like, to what point it is accepted by the 'community', but also legal boundaries.
Meal Prep and Cooking can be a huge time sink, but it doesn't need to be. At the most basic level a meal kit service will save you substantial time.

Or just get a list of recipes you like and stick to them. Sure less meal diversity, but you can optimize your meals. For me it's generic salad (Lettuce, Tomato, Cucumber, Dressing, Cheese, Seeds), Rice Dish (Chicken, Beef, etc + Frozen Veggies), Smoothies w/Frozen Veggie and Fruit, ..etc.
There is no silver lining and the next pandemic will play out raw, just like this one. Antivaxers will blame it on Bill Gate's son and 6G. That is because of human stupidity - it's immutable and ever present.

So my hope is that science will come up with better vaccines quickly and natural selection will trim off the Enlightened to a more tolerable level.
The original cheating, maybe. Cheating, doubling down by lying, and then cheating again on the get-out-of-cheating-free assignment seems like it’s only adapted to a future life of white-collar crime.
It's a news article, not a peer-reviewed scientific study - why don't people understand the difference?
DietPi is a lightweight Debian based Linux distribution for SBCs and server systems but with the option to install desktop environments, too. It ships as minimal image but enables you to easily install complete and ready-to-use server software stacks with a set of console based shell dialogs and scripts. Read all info at https://dietpi.com/. The source code is hosted on GitHub: https://github.com/MichaIng/DietPi
arguably better

the users are now more aware of unethical business models and have more control over which third-parties can access data
Assuming the quote here (https://news.ycombinator.com/item?id=31550090) is correct, where do you expect them to get $1 billion+/year to do this?
Given the surrounding context I read that sentence to mean that focusing on compute density allowed them to sell each core at a lower price vs focusing on performance, not that Graviton 3 is cheaper than Graviton 2.
Sorry I misread it!
There's this Jetlovers thing that connects to Foursquare/Swarm and logs your flights, provided you check in at every airport. You can follow people to see their recent flights in your news feed. Your idea feels like it belongs there.
You seem to claim that quantum mechanics can/does in fact model chaotic behavior, only that such chaotic behavior is "not actually real" in ways. That claim would seem to contradict Hossenfelders message, she seems to claim quantum mechanics can't model chaotic systems -however "actually extant" they may or may not be.
I just don't know, but I prefer to consider claims of hidden agendas after theoretic details are resolved, if at all.
More like not self-hating enough.
I'm in a suburb of a large metropolitan area in the US. The grocery store is abundant, but 20 minutes away, I make one main trip to the store weekly, and a couple of side trips to other stores, eg Mexican/Asian groceries. We have different POV because of our geographic differences, I think. I do not think complicated recipes are good in and of themselves.

Pasta + bechamel is easy, you can't do this 5 nights a week. I'm moving away from carbohydrate-rich main dish, more to grains and pulses. A slow-cooked shoulder of pork, like a cassoulet, is easy, yet still takes time to roast, then the meat separated from the connective tissues, the fat, then a stock reduction, then the beans. I offer it as an example of cheap, easy, tasty, and time and labor intensive dish. You need some greens to serve with it, and you can't prep greens 5 days ahead. I also don't want to eat this 10 meals in a row.

Edited to add: I find Gordon Ramsey YouTube videos quite instructive, his menu is simple and tasty. I got a lot of mileage out of his techniques.
>If async catches on more widely I’m worried it would be the final push to make software development purely transactional and performance/pay would be directly tied to metrics.

Here's the thing; that (a completely transactional relationship between all elements of a team) doesn't actually work well to make good products. Sure, a bunch of companies would probably do it as it's easier to measure worker production that way, but async also requires a different type of management and admin work that has to change as well. A lot of current managers won't be able to hack it, frankly, without the measured 'butts in seats' element.

Personally, I think it should be coupled with an investment in HR to get more qualified and motivated people working on the problem. It's a different concept for business and teams, that's all. Applying the older paradigm is going to be a problem and while a lot of companies will do just that they will also be less successful overall.
>So I disagree with his argument that infinite growth is possible.

People believing in "infinite growth" or even a scaled-down "sensible" version of it, are like people believing in perpetual motion machines, but with degrees and influence on policy.

It's even more tragi-comical when they become even more commited to it as infrastructure, growth engines, society, etc. is crumbling all around them...
I have worked remotely more often than not in the last 10 years. I think it absolutely works in some cases, and hybrid (e.g. 3 days remote per week) works for more cases. But...

The first time there is a bad labor market, most of the current remote jobs are going to disappear. Not all, but most, and in nearly all professions the remote jobs will mostly be contractors who have no long-term employment with the company anyway. Not saying this is the way it _should_ be, but when it comes time for layoffs, the people who were working remotely are just emotionally and practically so much easier to choose, than the people who show up in the office every day. Not saying it's right, just that it's so.
I like to use short metaphorically, outside of financial contexts. For example, the decision to own guns is short civilization, as others have put it.

You may be interested in prediction markets for study replication, where you can a real (financial) short position against bad studies: https://fantasticanachronism.com/2021/11/18/how-i-made-10k-p...
Channel 4 didn't receive any money from the TV licence.
Having the right set of tools and prep space really is key. A good chefs knife, a cast iron pan, a fry pan, a pot, and cutting board is all you need. Learning good knife skills and having a good chef knife drastically speeds up prep time by 2-3x.

For example take dicing an onion. If you didn't know this technique it'd likely take you more than 30secs to dice an onion: https://www.youtube.com/watch?v=BuebC0CfD8E
I think YouTube is doing this already.

Games as well.

We are getting addicted to content creators, they get addicted by money, views and the algorithm.

Tv was similar but yt is much bigger, catches mich more people and is much more diverse.
When is the last time Amazon has raised cloud prices?
I use it for Rambly.app. It works pretty well, but there are definitely cases where it fails for some people.
>Freedman agrees, pointing to firms like Spotify that are continuing to pay New York City-level salaries to workers no matter where they're based.

Is that true?

Will I get $200k in eastern eu?
There's a lot of "considering" and "thinking" in this article, but how many people are ACTUALLY quitting over that?

What's the increase in turnover because of WFH policies? A few % total?

EDIT: Oh, just saw this in the article:
>Although there isn’t any hard data to show increased quits due to ending flexible work specifically, anecdotes of worker exits are starting to trickle in.

Carry on then.
I'm using them a lot for git. I have aliases for all the git commands.
And cooking requires a good amount of physical activity, like kneading dough. So it's a kind of small workout for me.
The designs did burn a lot of fuel, but sonic booms were also extremely unpopular.

The FAA picked Oklahoma City (without asking them first) for an experiment to subject a city to regular sonic booms. It, uh, didn’t go well. https://en.m.wikipedia.org/wiki/Oklahoma_City_sonic_boom_tes...
I’m lazy and try to minimize food preparation time, and I don’t find it difficult. I don’t know how you define healthy, but I often just fry some steak or piece of fish in the pan with a side of frozen ready-made pre-seasoned vegetables in the microwave. It takes like ten minutes. Or a curry using a good curry paste with coconut milk and vegetables and/or meat, optionally some rice from the rice cooker, doesn’t take more than 20 minutes actual preparation time.
NGINX will do this just great.
Do you drive all the way to the farm for your groceries? That food maybe traveled 1000 km to get to the store where you buy it. How far do you drive for you food, 50km? Thats what, 5% difference?

Lets suppose you drive all the way to the farm.

Do you think your car is more efficient at moving goods than a truck? Have you tried dividing Fuel consumption of the truck by its cargo capacity, and then doing the same math for your car?

Or is your beef with daily-ness? The store near me gets two trucks every day - would it be better if it got 4 trucks every two days? No-one is driving around half empty trucks
I liked it. The problem is this was released before the sale is available.

I'd pay $$ (but not $$$) for a good course of lessons like this. But it seems like what's being sold are video lessons, not available yet.

Ideally, though, what I've wanted for a long time are heuristics like this embodied in /code/. I have ideas for how to do that, but no time.
Besides the point, but I would hope that for the version found mid-way along the article, (compute in constructor, return value via the count function) the compiler would first optimize away the container class because the container only has one member, then optimize the call to count away.

If having a class like this makes sense, do it and leave optimizing to the compiler.
I think of it more like "what if all the effort resources put in to things like making funkopops and microtransaction heavy child addiction simulations for mobile phones were used for good things. What if we weren't all forced to drive into the officeif it wasn't truly necessary."

The neoliberal version is basically "cost of living goes up, manufacturing of instant waste goes up, the common man gets nothing."
Another though I had when I saw dall-2 and imagine:

We optimized away the 'physical doing' thing of creating new content.

It's only a question of time until video imagine will be able to create real relevant new content.

No one needs meta when we are already quite happy to stair at a cheap 2d screen.
>> Did Washington's illegal invasions of Iraq, Libya, or Syria shock global energy and food markets, leading to global crises?

Not a good comparison in terms of food. Ukraine produces 6% of the world's wheat. Russia produces 17%. The former is unable to export its stockpiles due to the Black Sea blockade by the latter, and the latter is not going to be exporting what it produces because they recognize that they can use it as leverage.
> how little opportunity there really is.

It's called the yellow Sun effect. Superman, an alien who is born for the red Sun of Krypton gets superpowers under the yellow Sun of earth.

As an immigrant, everything feels an easy mode (once you've paid your dues). The other side of this is that when you are from here, you grew up on easy mode, so it just feels like 'normal mode', which gets difficult the moment things go a bit difficult.

I have seen 2 BD apartments in NYC with 3-4 Asian families living there, and they still would rather be there than back home. While you think there's little opportunity (probably because those 3 families purchased that 2bd apartment for $700k which you want for your 2.5 kids family, and you can't afford it), whereas for them its opportunities everywhere.
Emacs was not originally created by him though, but Guy Steele and David Moon.
So more line spacing and paragraph spacing are not improvements to your eye? Paragraph spacing in particular seems to me an uncontroversial improvement over the default.
You are right that that some train stops only exist for very peculiar reasons, such as Montabaur on the Cologne-Franfurt line.

However, regarding the high-speed connection Munich-Berlin, the question was not so much whether to got through the Thüringer Wald (via Efurt), as the alternative would have meant to cross the Thüringer Schiefergebierge to the east (via Leipzig–Probstzella–Hochstadt-Marktzeuln), but whether building the line is worth the high costs at all.

There are quite a lot of "Inter City" railway stations in Germany.[1] This reflects the situation that Germany has not many large cities (only four have more than 1 mil. inhabitants), but a lot of medium sized ones (80 of over 100,000 inhabitants). Sometimes there are "Inter City" stops at small towns with important companies, such as Walldorf, where SAP is located. So the focus is not on connecting distant cities, but on train rides in the 50 to 150 km range. (Long distance commuting averages around 100 km.)

[1] The German Wikipedia has a list: https://de.wikipedia.org/wiki/Liste_der_Bahnh%C3%B6fe_mit_Ha...
>but I believe you want to optimize for the hardest day rather than the average day

There are a few problems with this. If your "hardest day" deviates far from your "average day", while being very infrequent, you're still not doing a good job enticing the candidate. Worse, by looking for people who have already acquired the skills to combat the worst you can throw at them, you're severely stagnating their growth.

Then comes the cherry on top, if your company is doing it while not providing absolutely stellar benefits to function as external motivation, you're further incentivizing people to work on ditching your place. Many companies do not give total comps in line with the skill level tested for, setting themselves up for failure in this regard. Altogether, you're still looking at this primarily from the job interviewer's perspective, not the perspective of the candidate which translates into the company's long term (lack of) health.

>you will eventually have a problem that nobody can solve

No. Someone has to be the first person to solve a question. This strategy doesn't take into account the capacity of individuals to learn and overcome challenges. What's more, most individuals will not be on the highest level, allowing mentors to train them to higher levels.

>I don’t necessarily disagree

It's not about disagreement. Schmidt and Hunter did a meta-analysis on this way back in 1998, and psychology has yet to find the silver bullet. Look at table 1[1]. Most studies checking the market find similar things. It is ridiculously difficult to find correlations between job performance and selection criteria. All corporates, including FAANG, are not exempt from making the very human mistake of doing something which seems great, but ends up being part of survivorship bias. In something as multi-faceted as the job market, combined with the young and everchanging nature of software development, making statements on correlations shouldn't be taken for granted.

Notice how the study above points out years of experience as one of the worst predictors. Most of the job market still uses YoE as if it is gospel. The market is nowhere near as rational as people like to believe it is.

[1]: https://www.researchgate.net/publication/232564809_The_Valid...
Because it mostly looks like book promo rather than something that needs a separate Wikipedia page. It's not a widely used term and should likely be tossed from German wikipedia as well. It would make sense in a page about the book or the author.
Erik Demaine is a joy, and this class has _such_ cool content. I'd recommend this highly (I did this class a couple years back now).

I particularly enjoyed link-cut trees, I doubt I'll ever use them in anger, but the way the concepts all fit together is _so_ cool. I especially liked the use of heavy-light decomposition in the analysis, and then just the way the splay trees are integrated into the implementation. Feels so satisfying and magical.

Other highlights for me were the content on persistence, great stuff to know, and memory hierarchy, at least I think that was this class, getting into cache-oblivious models of computation (which, btw, are the opposite of what they sound like from the name).
I'm pretty sure people understand that this article is indeed unsubstantiated clickbait like most of other unsourced news articles.

Well, at least outside bunch of HNers which will ignore the article and just dump their personal WFH stories in this comment section as usual.
A propane/isobutane blend is a good replacement for R-12 which was the refrigerant used for air-conditioning before CFCs were banned. Straight propane as you note is better for freezers than air conditioners.

A problem with blended refrigerants is that if there is a slow leak the blend will change as the refrigerant leaks out, due to the different partial pressures. That makes recharging more difficult, you basically have to vacuum out the system and recharge with the correct mixture.

Also, propane and isobutane are both flammable, but other than CO2, most refrigerants are to some degree.
I think you’re over-estimating the difficulty of the average programming job. The simple fact is we have great frameworks to work off of and building things from scratch is a waste of time and money for most business applications. Wordpress is a great jumping off point for like 75% of businesses. If you know how to write some custom theme code I’d call you a programmer. Doesn’t mean you’ll get a job in system-level design, but you’ll be able to pull a paycheck and sustain your life (and potentially support others). What exactly is wrong with that?
You don't need more of an alternative to stop digging the hole deeper (subsidizing the problem, hard-requiring degrees awarded by the problem, etc.).
A big omission is dbunit. It’s oldschool but very very powerful. I have used it for many things, but perhaps the must useful is extracting a subset of data out of oracle and inserting it into mysql in order to test components of production systems locally.
Neckbeards aren't patient people. Congratulations on finding a unicorn.
An honest person will do the right thing, even if they think there is no chance of being caught. A dishonest person only acts honestly when they think they will be caught. Since there are not too many honest people, our only hope against the corruption of dishonesty is to police and punish dishonesty so more people will at least act honestly.

But then, there is another thing.

Being able to get a degree has become a gate for many jobs. Adding additional courses that are not needed for those jobs may sound good, but it really just prevents some people from getting jobs they could do, but for the inappropriate gate.

Example: adding a mandatory advanced algebra course to a nursing program.

You might argue that a math course helps with abstract reasoning, but you'd be wrong. Passing a math course demonstrates an ability to do a specific kind of abstract reasoning. There is zero benefit for a nurse to be able to do advanced algebra, but many schools now require it. The result is that many people who would be great nurses cannot be a nurse unless they cheat to pass the algebra class. Faced with that decision, do you cheat, or just give up on your dream to be a nurse?

It may be hard for many HNers to comprehend this, but an inability to do advanced math is a thing. For some people, no amount of effort will lead to an understanding of the subject. It's just too abstract. These same people have plenty of other abilities, and are good at many jobs.

Can you blame a student for cheating on such a course, that everyone knows they'll never need to do the job they're going for?
Same in Brazil. Maybe it only works with flights in US.
Crossrail for New York
How Partytown Works
As someone who has been fully remote the past two years, and in a team that is gradually exploring/adopting more async work practices over the past year, I would be curious to hear more too.

Our team stopped having a standup meeting- we just have a daily automated post in our chat, and we comment in the thread whenever it makes sense. If we’re working on the same thing for days with no blockers, it’s not a big deal to not provide an update.

We’ve reduced our synchronous communication by quite a bit. Some weeks I don’t have a single call I join. If you document everything well enough, you don’t really need to. I find myself on calls when I need to extract information from an architect that is just too busy to write everything down, or I’m mentoring a teammate. Or I’m in my monthly 1-on-1 with my manager.

Working outside of regular business hours is not off the table, but it is new. It helps that some of us are in the US and some in Poland. Normally, just blocking off time on the calendar and marking your status (out of office) is sufficient.
But…why?

Why would you persist with something that makes you sick even when the enthusiasts admit they use it once or twice a month?
> moved to suburbia to escape the city noise

City noise is almost all from automobiles https://www.youtube.com/watch?v=CTV-wwszGw8