skysight-inc/HackerNews huggingface dataset:
That's 1.5kW in exchange for 350W + the fuel. Whereas a heat pump gives you the same without the wood at all. (And a basic stove gives you the 1.5W for just wood without electricity nor complex and expensive machine).

An industrial scale thing may be more energy efficient, but why bother when you can just get rid of the NOx with catalysis instead…
Competently administering 2FA essentially requires human intervention to handle the "I lost all my credentials" case because it will happen with probability 1 eventually. Workplaces can do this because you can call IT and have an already established identity based in the real world.
I would love to save the QR codes, but Google bans screenshots in the Authenticator app.
Those countries probably don't care about recycling.
I know this is HN, but come on, how many 16 bit programs do people use nowadays?
It’s slows your login significantly, it’s cumbersome. The more often you have to do it, the more infuriating it becomes. Disclaimer: I hate this as well.
Exactly my thoughts. "I love and accept myself, exactly as I am." seems like an entirely defeatist attitude, and one that completely discounts the idea of self-improvement.
If you use Cisco phones, you use Jabber.
https://news.ycombinator.com/item?id=34441324
You have to take a photo of the screen on another phone, Google disallows you from screenshotting them.
Because it IS news to a lot of people. And putting it in context brings home the reality and implications of tracking that many people may not be aware of.

If you've ever seen any SaaS websites where they have...

- Our Product vs Competitor 1

- Our Product vs Competitor 2

- Our Product vs Competitor 3

- Our Product vs etc...

... then you can see why this is important from an SEO perspective.
> I noticed that the Wikipedia page for "Wikipedia" allows you to preview the new design: https://en.wikipedia.org/wiki/Wikipedia

The navigation frame on the left is absolutely massive. At first I thought you linked the mobile view, but no, it really is wasting a quarter of the width of the page (on my monitor) on white space.
There's so much wasted space to the left. And still no dark mode.
Beyond losing sales and laying people off is compatible with a growth industry where numerous other entrants are starting to steal the customer base of the first mover by charging less or having better products.

Of course, that is counterbalanced by retail and restaurant trends.
> What am I supposed to do in this situation?

This. Support systems in the world post computers eating everything is basically HN posts.
Start on https://python.land/python-tutorial

Spend a couple hours on that. You'll get Python installed, run a few basic programs, and get a feel for editing a program and having it behave differently.

If you like that site, keep going :-) If not, or if you finish it, continue to whichever link on https://wiki.python.org/moin/BeginnersGuide/NonProgrammers sounds most fun to you. Follow your interest - there is no one “best” way to learn, so make it fun.
reminds me of https://xethub.com/assets/docs/xet-specifics/how-xet-dedupli...
Estatesales dot net, my friend.

Walk in on the last day of the sale, an hour before close, "fifty bucks for what's left of the records", walk out with six crates of vinyl.
Wow, I wish I had known about this book (and had a license to Mathematica) when I was in college. I always got hung up on the notation and my inability to visualize the concept.
Then how come I see their comments?
Ah yes, the Yee-Hawdists. Vanilla ISIS. Banana Republicans. Meal Team 6.
Walmartyrs.

Classic buffoonery. Until it's not.
How exactly do materials go from dryer lint to trash bag and then somehow end up in the ocean?

I can see a washing machine sending micro plastics down the drain resulting in some small percentage of those ending up in the ocean. Assuming some failure where raw sewage was dumped into a river or ocean.
I've been looking for a tech stack to replace latex for decades now. As a very recent development, the combination of pandoc+weasyprint (plus a little bit of homebrewed pandoc filter magic) has now become good enough for my needs, and I have finally been able to take the plunge. Feels great.

For those who are a little less adventurous and who happen to be in the social sciences, humanities, journalism, etc., pandoc+msword is also definitely worth looking into. It's a much better tech stack than standalone msword. -- It's really only in the STEM fields that, in my mind, there really is no way around latex.
This is a very mature industry. I'm skeptical it's economical at all.
Certain 80s/90s Toyotas had something funny about their keys, where they were widely interchangeable between different cars. A friend of mine tells a story about how there were a few students at his high school with identical looking blue Camrys, which caused major confusion when they learned–by getting in the wrong car and driving home–that their keys worked in each other's cars.
I should mention focusing on doing a few interesting problems, rather than many not so interesting ones, is also one way to help yourself understand more deeply.
I am aware of factory farming.

As I explained in my statement, cows are finished at factory farms.

It’s very clear that you have a very surface level understanding of how the American cattle industry works. At no point did I claim anything about how cows don’t consume a massive amount of grain.

Unlike chickens and pigs, the American cattle industry is decentralized. Cows are raised on a series of different types of ranching operations, traded along the way, until they end up at a factory farm at the end where they rapidly gain weight due to grain feeding.
It's like a party trick with you, isn't it?

Can you point out what you think I don't understand?
Lightning has a fundamental graph theory / routing problem. As the number of nodes increase the path between those nodes grows at a nonlinear rate. The internet has this problem too, which it mainly solves by letting a human put a finger on the scale in a centralized fashion. Lightning network cannot make this tradeoff. It's a simple mathematical problem that we've known about for centuries and it's baffling that anyone thought it would help in the first place.
I had a print of Euclid's Elements as a kid.

My mom was really into mathematical proofs and I being a huge loser kid with no friends naturally took to this book as well.
ahhh that makes sense. thank you
Easier to line up check boxes on left
I did this same exact thing back in 2010. I used khan academy for it. Started with positive and negative numbers, arithmetic, through trig and algebra.

I like khan academy back in 2010 because all the videos were in one place and you could see everything right there in front of you
That's a really cool service! Pity they don't offer European phone numbers...
I would rather not have to send every crappy website on the internet my ID or bank account information.
how does this even work with merges or conflicts?

How do you review changes easily?

It seems like a lot is actually missing. Rolling hashes over blocks is not exactly revision control.
The very small scale ensures it isn't economical.

If thermal decomposition of plastic is to be worthwhile, it would be on the scale of oil refineries (which it would likely resemble.)

It might be worthwhile to separate plastics now, not for conversion now, but to stockpile for later processing by this or other means. Just put the stuff in plastics-only landfills designed to ease later mining. Fixed carbon will be more valuable after fossil fuel use ends.
One thing though, these types of things can't be helpful to the political future of Pete Buttigieg. Between airline issues and rail strikes and shipping/port issues, he has been very politically unlucky.
Rizzi's are nice for eating out.
Pete Walker writes good books, but sometimes I find his prescription of out-fighting the critic counterproductive. I observe that the voice of certain unproductive thoughts I have is more like a wounded child than a critical adult. It says "Why even try?" sadly rather than mockingly. Fighting it makes this worse. It needs love and cuddles.
Whatever you think of her actions, her journey (and similar for a variety of other anti-Trump Republicans) illustrates the power a President can have over Congress. This has pretty clear implications for the budget process.
Show HN: Live Editing React with Plain English Using OpenAI Edit GPT and Emacs
GitHub Pages is currently degraded
Incident with Git Operations and Pages

Pages is experiencing degraded performance. We are continuing to investigate.

Jan 19, 2023 - 16:09 UTC
Not sure how they planning on enforcing reporting exceptions, since part of that rule is to use TikTok on campus, the device can't be connected to the campus networks (Wired/Wireless). So you have your own personal device, use cell data, why bother reporting it? Not sure if I agree with the ban to be honest, but it is very alarming how tech illiterate those that are writing the laws are.
Top fails when developing software in the German medical software market
I'd encourage you to ask the shelter how much they get from Amazon Smile. My guess is it's $200-300 max, which is barely enough to save a single cat.

Worse, there is a well-known phenomenon [1] where if people's "guilt" is taken away, then they are less likely to donate overall. That is, for at least some portion of people, they probably mark a small charity as their Amazon Smile recipient and then think "Great, I'm donating to charity!", not realizing their donations are like 50 cents. But if they didn't sign up for Amazon Smile they might be more likely to actually donate a real amount.

To be clear, I'm all for small charities getting money, but I'd almost rather it be like a lottery or something so a smaller number of small charities could get money they could actually do something with.

1. https://www.nytimes.com/2005/05/15/books/chapters/freakonomi...
Doesn't keeping the seed remove the whole point of one time passwords?

If an attacker steals at TOTP, its only good for (I think) less than a minute. If they steal the seed, its good forever.
Maybe, but what comex and I are talking about isn't too big to be coded in Awk; it is a very (extremely) common pattern that Awk just makes more difficult than it needs to be.
Seconding all of Spivak's books. My favorite treatment of differential geometry.
Honestly, unless you're very gifted, a book on its own is not going to be enough to really develop your skills. You need to work interactively with a teacher. Getting a degree in math is a good start, but even then it will be limited if you don't work with other people, go to office hours, form relationships with professors---embed yourself in the culture, so to speak. I think getting engaged with an online community like MathOverflow or similar could be a substitute for this.

IMO, programming is "easier" to learn on your own for a few major reasons:

1) The sorts of things most people are interested in building just aren't unforgiving intellectually in the same way that math is.

2) You have a compiler to check if you're right, and your code will often still work even if it's "wrong" (not as efficient as it could be, has unwanted side effects, etc.). In some sense the compiler is a bit like a teacher this way.

3) With programming, you can upload and make it available for free, and whether it's legit or not is largely disconnected from your pedigree or how "correct" it is. This makes programming far more accessible. This makes sense considering that programming is primarily a practical tool. On the other hand, mathematics is primarily a field of scientific inquiry and is judged by different standards. If you learn a bit of math, try to write a paper, submit it to the arXiv... well, people will probably think you're a crank.

On the other hand, if you're just interested in math for the love of the game... you can certainly pick up a book and read it, maybe work some problems, but I think at this point it's quite easy to fool yourself into thinking you understand more than you actually do. I guess there's no real harm in being a charlatan, but probably the average person is interested in having some kind of real relationship with mathematics that they can be confident has a firm foundation. I'm very skeptical most people can truly pull this off by just reading books and not actually going to school.

---

As an aside, I think the fetishization of math in programming communities is very interesting...
> compared to 5% with fiat money

Sorry, what?
I've always loved how shotwell does it: "YYYY/MM/DD/filename.ext"

The only downside has always been that merging your photo libraries when you did two different things can give some funny results. Shotwell will split the events based on the import, but if you browse the files without shotwell or reimport them later you lose that.
Yet does anyone think "this is decorative square" rather that "this is checkbox that's off" when they see a checkbox that is off, especially in the context of a list of settings?
You become confident by taking on challenges, repeatedly coming out on top...

If you repeatedly come out on top you're just doing easy things. Ideally you should be failing at about half the things you try to do if you're aiming high enough.
This is a non-response. Profits go up when you give people things they want in a way that's sustainable and decently scalable. Plant-based meats have definitely not reached their peak of market penetration, and manufacturing costs are expected to continue declining.

If they continue to sell and continue to grow the customer base, profits will go up.
It's interesting as I've observed this phenomenon too - some people end up getting what they've dreamed of, the ability to do whatever they like, and the experience seems to bring them to a kind of deep unhappiness.

But, and I think this is important - it doesn't happen with everyone.

There are those who have the opposite experience. They're a joy to be around, and also typically excited/hyper-productive with whatever they're doing.

As I see it, we are all heading for the same future, whether we like it or not. We can't keep perfecting the automation of tasks and abilities and accelerating all of the technology to do so, without reaching a point that there simply is far less actually useful work for people than there are people.

I'd hope that as a whole we're able to figure that out, perhaps with the help of whatever AI will be at the time, such that most of us can end up on the other side of that change in the positive way I described.

I don't see why in and of itself, we couldn't. But I can see why some might take the view that we couldn't. However, in the face of adversity, I prefer to remain optimistic: we're a very resilient species, who've been through all kinds of crazy changes at the various extremes of existence. Surely we're able to collectively handle the comparatively lesser challenge of simply spending each day how we like?

And I wonder if optimism may have something to do with it. Of those I've met who seem genuinely happy, and free to do whatever they like - they're always optimistic about the future and life in general, usually contagiously so. Whereas, I've met people in every kind of financial or working situation who seem imbued with pessimism, and well... they're miserable.

Is there a way out of that negativity, or is it just what some of us are stuck with? Well, optimistically, I take the view that of course there is.

On the whole I think I agree - we do need something to wake up for every day, and I'm sure that we, given a bizarre kind of freedom that leaves us no choice in the matter (find it or get depressed being directionless) - will find out what it is.

And thanks for sharing your experience, I really appreciate it. I hope my (at times, a little crazy) thoughts about the topic find you well.
So which is easier? Law Enforcement going after Google for the data or LE going after the site itself for the data on customers?

Seems like it would be easier for LE to threaten a small pharmacy versus a big corp like google.
Totally agree! I remember raising my eyebrow at ambiguities in math notation as early as high school, before I could articulate them as such. One specific example is the convention of cos^-1(x) referring to the inverse cosine of x, instead of the multiplicative inverse of cos(x). Similarly, the convention of cos^2(x) referring to the square of cos(x) instead of a nested cos(cos(x)). It's madness, and totally avoidable.
Here's the thing. You might see a lot of these plant-based meat options in grocery stores and think "it's certainly not a flop! look at the grocery store sales!"

But now take a look at the major industry players. JBS, Tyson, Danone, etc. The ones with more capital than you can imagine and every reason to consider plant-based product lines.

Track their PR timeline over the past 5 years and it's easy to see that they tried to push this stuff into the market and it was not accepted in a way that generated profits.

Yes, I know big-meat is subsidized and not pricing in externalities. But that is the world we live in. These are just honest observations of a bizarre market.

If you are passionate about sustainable food systems, it's important to take a hard look at the truths surrounding meat production. Sexy tech and moral high-grounds only get you so far.
I'm going to cheat and combine a couple of books into "one book". The Manhattan Prep GMAT test prep math books were really good for me for everyday life. I learned a lot of shortcuts and quick heuristics to use and got better at estimating after going through those books. It doesn't help me "get better" in an academic sense, but those books pay dividends every day for me.
> The $400 headset in question is not doing both.

And? I'm not talking about the $400 headset that was doing both. That was the Quest Pro (which already exists in the market as mixed reality) and eventually the fully AR glasses in R&D assuming you read my comment? Meta already has more than one product for this.

> What might happen in the future is for the discussion about the future. currently not the case.

The over-arching discussion is already about the future Apple AR glasses, and Meta's intention about their own AR glasses couldn't have been more clearer and relevant with their acquisitions.
> 19. Interviews are almost worthless for telling how good of a team member someone will be

I definitely agree with this statement, but I would add `but at least allow you to discard who is definitely not good`.
GDPR isn't intended to stop its use. It's intended to inform users of data sharing and provide them a mechanism to subsequently delete.
After ticking a checkbox, you might have to press submit button.
For the toggle switch, there is no submit button.
> On another occasion much later, I learned by chance that putting certain provocative information on a security clearance form can greatly speed up the clearance process. But that is another story.

Talk about burying the lede!

Charming story nonetheless.
> whereas checkboxes (and radio buttons) need to be on the left of the label, unlike other controls.

They don't, though.
I always recommend Bressoud's measure theory/integration text as a supplement the first graduate course in analysis. His discussion of weird and pathological sets of reals such as fat Cantor sets are really helpful for building intuition.
"reproductive health"

Being able to get "abortion pills" is very much part of proper reproductive healthcare
Much of the feedstock for plastic is from natural gas, not from oil. Fracked gas in particular has a lot of ethane, which is converted to ethylene and then to polyethylene. The rise of fracked gas in the US caused PE production to move here.
It would be nice if they listed safe use cases for oil from squished plastic…

I couldn’t imagine you want this reaching smoke point.

BRB drinking water derived from urine to wash down the bug protein bars I ate earlier. I’ll be sure to wipe later with 2 square inches of newspaper that I’ll later dispose in my apartment’s communal compost heap…protect the planet!
>> The idea that a tiny number of billionaire investors who invested early in social media startups get to decide what political speech Americans are allowed to express on the internet makes a mockery of our values as Americans.

The Supreme Court allows it with Citizens United. Also, this idea of the minority wealthy controlling politics falls in line with the Supreme Court: it's appointed, not elected, judges can decide how to interpret a Constitutional document that has long-lasting personal impact to millions of people.

On a business perspective, CEOs make these decisions every day. Consider Rupert Murdoch and his influence on Fox News?

I fail to see how your stance of allowing billionaires to make arbitrary decisions for millions to be "a mockery of our values as Americans".
Getting internal server error on some Git repos too. "Git Operations - Degraded"
I really love the breadth of Internal Admin tools that are available today, however, I feel like none has an even minimal support to proper dev flows like dev/staging/production or a way to synchronize releases between our own Backend API and the admin pages.
It's also an area where the economics are changing - renewable energy is cheap during peak hours. So if you can build a process that can essentially soak up that energy you could try and do arbitrage. Whether that's enough to make that economically viable depends on the capital investment required, but it's at least possible in the near future.
In Bitwarden you can just store the key itself and it'll generate the codes for you, right next to your password, so convenient!
A lot of recommendations depend on what you're trying to learn.

But I've enjoyed the following texts to a larger extent than others:

- Algebra: Chapter 0 (Aluffi)

- Real Mathematical Analysis (Pugh)

- Mathematics and its History (Stillwell)

- An Introduction to Manifolds (Tu)

- Gauge Fields, Knots and Gravity (Baez)

- A First Look at Rigorous Probability Theory (Rosenthal)

- All of Statistics (Wasserman)

There are some authors I trust and am happy to buy so long as the topic vaguely interests me: VI Arnold, Tristan Needham and John Stillwell.

I really like the list put out by @enriquto in a separate comment, but I've avoided duplicating those recommendations in the list above.
Had to do a Calculus course in uni despite not having taken any calc or pre-calc in high school. "Precalculus Mathematics in a Nutshell" and "Calculus Made Easy" were complete lifesavers.
You defined a "Pro" as someone that's "using your computer to make money", like writers using a word processor. Let's suppose all they do is use Google Docs in a browser.

Should they buy the Air, or pay the premium for the Pro? After all, they're "hardcore tech" people.
For tires, is anyone working on biodegradable or otherwise eco-friendly tire materials? Something that is biocompatible. Although you don't want tires breaking down and causing accidents... Tires have a lot of conflicting design requirements.
I have nothing much to add about the tool, but just want to say this is some beautiful documentation.
it had tons of trans fat when it came out, also cholesterol intake isn't important. Dietary cholesterol == bad is just a myth
I had a "long vegetal" burger in Spain from Burger King. Basically an imitation chicken burger. And it was awesome! And Spanish people were ordering it too.

In the UK, the meat free alternatives are pretty great too. Honestly, it feels like meat free stuff is turning out to be the opposite of a flop.
Last time I looked, there were withdraw limits on non-KYC'd accounts. Anything of quantity gets immediately locked down.
Other apps will reveal the underlying seed string. No need to deal with QR codes after scanning them once.
So when there's unrest in the middle east, does the price of this converted oil suddenly spike as well? /s
presumably they send this information on all their customers no matter what they're buying (or more likely even just browsing), right?
I was thinking of treaps;

https://en.m.wikipedia.org/wiki/Treap