skysight-inc/HackerNews huggingface dataset:
Lol. When you have "kids/grandkids/friends", you don't get to control your time.
You don't just "play with kids/grandkids/friends". LOL.

The author obviously didn't have this in mind.
I'm not even sure there is a solution.

Anecdotally, a lot of my friends either chose not to have kids even though they were financially able to do so, or 'only' had one kid later in life after they checked a bunch of life goals off their list. And of course there's a segment of friends who never found anyone to partner with.

Furthermore, it feels like the checklist in what people are looking for in a life partner is more complicated now than ever, which can increase the amount of time it takes for a person to find a partner to have a child with. I assume that's a good thing as it may reduce the likelihood of divorce by resulting in a more ideal match, but it potentially comes at a cost of spending TONS of time filtering via messaging, dates, etc. It took me a whopping five years before meeting someone online that actually felt like something with a real future.
> I'm not quite sure I see the difference.

If you think it is reasonable to force people to make medical decisions when it is for the greater good, do you have an argument against mandatory sterilisation? Because I don't see an easy way to be pro- forced vaccinations and anti- forced sterlisation.

The basic argument is if the government can do this with only 1-3 years debate (when previously vaccines takes 4+ years to evaluate) then it starts opening the door to some really scary stuff getting rushed through. I'm more interested now in what you think is holding the door shut.

> I show my vaccine card when I enter ... No one records anything.

The vaccine card is what people are talking about when the say 'record'.
> Number one is that relative imports are weird. My intuition about imports is good enough that I never bothered to learn all the rules explicitly, but sometimes something simple is just not possible and it bites me. I think the case is importing files relative to a script (and not running with python -m ...).

I think the thing to remember about using relative imports is that it requires modules. Using relative imports to import something into a script will fail because the scripts don't belong to modules.

> Number two is, in order to do package management, you have to create a fake python installation and bend PYTHONPATH. Virtualenvs are the canonical way to do it, but to me it feels like a hack - the core language seems to wants all packages installed in /usr. So now I have all these virtualenvs lying around and they are detached from the scripts.

This is a pain. You can abstract this away with with pyenv or virtualenvwrapper, though.
Hi! I'm the author of the Perl paint-splatter paper.

"That lady" is Adrienne Porter Felt, who started as an engineer working on Google Chrome security a decade or so ago, and is now a Director of Engineering who manages a sizable chunk of the Chrome team.

I never worked with her directly, but she has a reputation as a good manager and I'm pretty sure she knows how programmers work.
Your argument is that high levels of fraud by international crime syndicates isn't the real problem, the problem is that we don't tax corporations enough to be able to withstand that fraud?

I'm sorry, that's completely ridiculous.
Literally nothing in my list was a covid restriction. It is a list of things someone can do if they decide they don’t want to catch covid at the moment while we wait for more info.
The dollars are relevant, but the widespread fraud is the more important aspect.
You'd either need to know your starting location, or have a clock synced with a known observatory, (which in combination with an overhead observation, is just another way to determine your approximate starting location).

You don't measure angle to the horizon, but angle from gravitational/geodetic "up", so you'd need probably a good leveling mechanism plus an inertial device, (if you want to be moving). And a reference to correct geodetic up to elliptical up (similar to a magnetic declination, but for gravity).

But even military quality geodetic transits can only get your longitude +/-100yds, plus they weigh a few hundred pounds, need to be manually set up, leveled, and a person has to do the actual observation (click a button as a star passes through the crosshair).

Granted this is decades old technology, (and I think actually used a electronic-mechanical computer) but I don't know that much has changed since then, at least in the unclassified world.

I believe ships at sea doing it manually with a sextant or similar device are only going for accuracy in the magnitude of 1-10 nautical miles.

So depending on what you're trying to do, it's questionable how much this might help you.
Don't worry. This happened once before in 2003 [1].

UTC has provisions for positive or negative leap seconds; that works fine. GPS runs without the hassle of leap seconds; that works fine too. GPS users often want to know UTC, so GPS also broadcasts the difference between GPS time and UTC; this works fine.

All of this is in the GPS spec; almost all GPS receiver firmware gets it right. But there is a weird edge case that is hard to test. Specifically if there has been no leap second for 256 weeks (1792 days, ~5 years) inadequately tested GPS receiver firmware could mess up. It happened to one make/model GPS receiver in 2003. [1] It could happen again later this year, in 2021.

The math is fun. The most recent leap second was 2016-12-31 (MJD 57753). 8 bits or 256 weeks later(1792 days, not to be confused with Ramanujan's taxi number 1729) will be 2021-11-27 (MJD 59545). So shortly before, or on, or after that date it is possible a faulty GPS receiver will misrepresent a leap second or miscalculate UTC. GPS positioning and navigation is likely completely unaffected (because it avoids leap seconds entirely).

[1] http://leapsecond.com/notes/leapsec256.htm
Sorry, all the strain caused a Trainwreck that scattered Girl Scout Cookies all over the place, and I forgot what I was going to say next.
That's a surprisingly intuitive illustration. Thank you!
It's about costs, it is very expensive to attend those private classes. And if other kids are doing it, some parents may have to do it as well. From the stories, the gov't may provide some mooc-like platform for students to learn more subjects.

Like many developed countries have done, birth rates boosting is often hard to achieve.
I’ve also found it massively beneficial for learning. A virtualisation server at home makes it much easier to experiment.

After a bit of gathering knowledge and ansible recipes the various bits start getting synergies and more becomes possible a la Lego.
When I see a broad statement like this, it seems interesting to dig a little further.

The article itself doesn’t provide much detail to back up its claims. And specifically it would be interesting to understand the patent issue better.

The patent they cite says claims “ A silicon single crystal produced according to Czochralski method using a melt in contact with a quartz crucible, to which Ga (gallium) is added as a dopant that controls resistivity of the crystal in a range of 5Ω.cm to 0.1Ω.cm, wherein a diameter of the single crystal is 4 inches or more, and the single crystal is used for a solar cell.”

Which seems pretty broad. Would that really have held up in court if it was tested? Was this patent really blocking fabrication of gallium doped silicon?

A text from 2015 suggests there were open issues around fabricating gallium doped silicon:

https://books.google.co.jp/books?id=S43SBQAAQBAJ&pg=PA253&re...

So it seems likely that there were open issues around fabrication until at least 2015. Have there been other process developments that have made Gallium doping viable in recent years?

The patent largely covers the fabrication process, and was recently licensed to a Chinese fabrication company. Is it likely that this IP was really blocking them? I.e. given that they may not publicly disclose their fabrication process, how would you know they were infringing.

If this IP was of such fundamental importance why was it not challenged? This is rare in my experience (outside of semiconductors at least).

So, it doesn’t seem clear cut to me. And it would be interesting to understand the issues better.
Holy shit. Why does no one do advertisements like that anymore?

I felt like I was watching an infomercial, in the best possible way. By the end of the 2.5 minute video, I knew (a) what it was, (b) what it did, (c) how it was better than alternatives, (d) how much it cost, & (e) how to order one.

Hats off to the creator for recording a damn good video.
The idea of combining electromagnetism into space time field isn't exactly new; Weyl's theory of the combined gravitational-electromagnetic field [0], proposed by Hermann Weyl, some 100 years ago, did just that.

[0]: http://www.weylmann.com/weyltheory.pdf
I can see the point but I don't quite buy it.

A better way to decrease inequality would seem to me progressive taxation whose proceeds can be used to provide high-quality education to anybody who wants it and is capable of studying hard.

In market economy teaching is a commodity so those who are capable of providing better quality education should be rewarded for it. That should be regulated however, so we really know who is providing better quality education.
More important than that is just using portable technologies that you can easily use a hosted version of, as well as be able to run the whole thing on your own machine. If you can't even run your own code yourself you're going to be in debugging hell (these kinds of teams do exist).
Educated != spend all your money and time on some math riddles (not even that useful for further higher math studies)
[Opinion]
Steven Weinberg (1933-2021)
Cramming exam questions for 3 hours a night will not raise your standard of education, nor will it lead you to question authority.

I think the other posters are right; it's an added expense for parents and a zero sum game. It's in nobody's interest to allow this to continue.
> "...what’s left to do is scale up from lab-scale prototypes to grid-scale power plants."

I'll make a note to check back in 20 years, then. :-)

I note they don't mention charge cycle durability - for grid, you'd want 10 000-ish cycles to 80% capacity. A bit of a red flag there.

Still, iron is cheap, plentiful, and environmentally benign. Even mining and refining iron ore isn't as bad as mining for many of the other chemistries, and we already mine a lot of iron, so there won't be shortages as it scales. I want this to work.

I note the web site[1] says its areal power intensity is about 3 MW per acre (presumably 300 - 450 MWh areal energy density, given the 100 - 150 hour claim), best case. They're not going to be installing this in Manhattan.

1. https://formenergy.com/technology/battery-technology/
It’s sorta like asking why we don’t fix pi at 3.1, even if the scale may (initially) be smaller. Or get rid of time zones: It’s sacrificing truth for the convenience of about a dozen people in IT.
And also check the author's fantastic accolades:

https://en.wikipedia.org/wiki/Steven_W._Mosher
The design of the energy markets will determine how free energy can be, as well as if there are any of the arbitrage opportunities I talked about.

The round trip efficiency of hydrogen is already something of a concern for grid backup power, as far as I know, ans that's only slightly less than 50%.

As storage costs decrease, those moments in time when there's oversupply of energy from solar and wind will become shorter and fewer. And (at least to me) it's really unclear what market designs will be viable if we were to have, say, 3x-5x oversupply of energy capacity so that renewables' minimums still meet our needs, and what new energy uses people will come up with when the can by intermittent energy for half a cent a kWh or something.
> problems in the National College Entrance Exam become tricky instead of deep

I assume that is because entrance exams are forced not to cover material outside the national high school subjects?

Brazil’s hardest entrance exams (ITA and IME) are not bound in any way, so they go arbitrarily deep.
Stop spreading fear.
I started Wander the Night together with sound artist SJF about a year ago during lockdown. From different sides of the world we collaborated to combine music and images to share the feeling of wandering far away lands and to capture the sensation of your first night in a new place.

We have collaborated again to add a new city. This time we revisit Kyoto, a city that means different things for both of us and I think that comes through especially in the subtle soundscape that SJF has created.

We used the howler.js Web Audio library which has proven to be very versatile: https://github.com/goldfire/howler.js
I mean, the way they succeed with Starship is failing over and over again until they don't anymore. In that sense it is (now, not before SpaceX was scaled up) solely an issue of funding: will it work before the company runs out of cash?

At this point, I imagine most every investor in Earth would be tripping over their own legs to buy SpaceX stock if they could. If they ever run low, their ability to raise more money is as sure a thing as anything in this world these days. Additionally, Starlink is going to be an absolute revenue monster very soon, even if Starship for some reason ends up taking another decade to get working.

The only way Starship fails is if SpaceX goes broke. SpaceX is not going to go broke. Therefore, Starship will eventually work, after some variable and as yet indeterminate number of prototype failures.
I also heard that the big after-school companies are discussing acquiring the US companies to survive. I really wish they can't. I love AOPS and RSM for their passion and their focus on fundamentals. I'd hate to see those companies turn into the soulless TAL, and teach students to memorize all kinds of patterns. Case in point, below is how TAL teaches elementary students to solve problems:

Bob and Alice have 10 candies in total, and Bob has 2 more candies than Alice. How many candies do Bob and Alice each have?

TAL's solution: this is called addition-subtraction problem. Add the two numbers and divide the sum by two, you get the bigger value for Bob. Subtract the difference from the total and then divide the result by two, and you get the smaller value for Alice. No mention of why. No mention of underlying intuition. No mention of any mathematical concepts. This is the most abhorrent teaching I've ever seen.
Semantics. Do you have a right to threaten a group of people voluntarily exercising together? Of course not.
Since you do not have that right, You cannot delegate that right to another, which makes any claims of "democratically" derived law, invalid.
The thing is that this is a zero-sum game.

These schools aren't providing education. It's not about actually improving yourself. It's about getting the highest possible score on the gaokao, nothing else at all.

If they were actually helping students further their education I'd agree with you.

I've been to these kinds of schools and I have friends who did for even longer, and they really, really suck. It doesn't help you in any way, I'd say it's a net negative in terms of education for most.
Almost certainly really bad things happen if your toilet paper is outside of 5% spec like going out of business, losing big contracts or certifications.
> Pass-through is not as obvious than sending the camera feed to the screen.

Pass-through is sending the camera feed to the screen.

And we've had a limited pass-through for a while in that you can configure the headset to enable it when you leave the play boundaries. You can also enable it at will with a double-tap to the headset. I've walked around my entire office floor with it, greeting people. It works fine.
When you profile code, do you spend your time fixing the most resource-intensive function or the function whose name you don’t like?

Maybe you disagree with the suggestion that there are way, way bigger fish to fry, and we should prioritize our limited resources accordingly. But to say that it’s “completely ridiculous?” That’s a little over the top.
Let me clear up some ignorance since a lot of HN has most likely not listened to enough early Joe Rogan podcasts.

>Joe Rogan isn't a great person to take any lessons from

If a republican says abortion wrong, should we discount their statement because they're republican? It's one thing to just listen to people and believe everything they say. It's another to comprehend when someone is just bullshitting and when someone is speaking from life experience. Joe in the early podcast was far less on the Ivory tower as he is today.

>At heart he's a comedian

Firstly, every single person who brings up his history prior to his mainstream success was he never did drugs, wired out of his mind to do better, and was very high strung. Universally all his friends on the podcast say this. It wasn't until he became a full on stoner that changed.

Also, he said his big breaks were from News Radio and then Fear Factor. Both of which were his steady income's well before he became a famous comedian. He was active as a comedian but he barely had any significant success at it until around Fear Factor. He even acknowledges that he got lucky. So he's not some moron that thinks he was entitled it. He said his whole life would've been different had he not gotten a job on news radio.

>I wonder how much he really had to deal with bills.

None in the context of my statement. All his money paying for his porsche, place to live, and lifestyle were from News Radio and Fear Factor. That's how he got famous and he has since been able to continue that success. His comedy didn't take off outside of Boston until well in his 30's.
Yes, you're right. There's a national syllabus.
At some point might you have gone to Search > Settings > General and unchecked "open web pages in the app"? Pretty sure that setting is on by default.
If you’re trying to use SQLite for this, it’ll be much faster if you import the data first, and then create your indexes.

Also check out DuckDB, which is a similar tool tailored for data science; I haven’t used it but I’ve heard good things. https://duckdb.org/
Yeah, you're sort of assuming a generic geometric solution, when we already know how to simplify a lot of the math/ reduce the unknowns.

If you find Polaris, you have both a vector to north and an angle to calculate latitude. No other info needed for that.

So you only need 1 overhead star plus a clock to figure out approx longitude.

Magnetic north is only useful if you need help finding Polaris.
For anyone curious, this is actually a very big deal.

Fuchsia is a sort of secret Google project to redesign the operating system from scratch - with a focus of making multi-device interactions a base primative.

The goal is to make multi-device interactions easier and not dependent on pseudo HTTP initiated sockets/streams.

It’s very exciting and hopefully makes it possible to have all the devices you are working with easily work together. For example, pull up content on your phone, pass it to your TV, interact with it on your keyboard, sync with your smart watch, etc.

The opposite today would be depending on a series of memory issues or depending on browsers or socket/protocols to manage a series of interactions between devices.
I was about to post it too, fiddling with registry directly where things are scattered all over the place should be last resort when there are better tools out there.
Trying to come up with some static perfect state in which I would be happiest has been an incredibly slippery problem for me. Even agency itself can become exhausting as anyone who has worked for themselves and gone back to the (temporary) relief of a manager assigning a fixed set of tasks will come to realize. Even if I had endless wealth and time which would solve 90% of my problems I would still have to struggle to find new meaningful challenges. This is not to despair of ever finding happiness just to remind myself its (for me, I don’t want to project my phsychology on the whole world) more a process and to enjoy the present with the knowledge that “this too shall pass”.
Every government is afraid of rebellion or strikes, or otherwise accountable to public opinion. The power that the average person has is considerable, and revolutions and revolts are not so uncommon.
It's not fake, it's just not valuable.

Edit: Or rather, the tweet doesn't claim it's fake, just that it's not valuable.
> Or is scaling up the controllable elements of a lab environment for fullscale production really so difficult?

It's even more difficult than that. :-)

Ideas have negative value; lab prototypes also have negative value; pilot plants are worth a small fraction of what they cost - scrap value.

You get value from full scale production, and every bit of that value is paid for in the engineering required to get to full scale.
> Let this be a lesson to US Marxists and their useful idiots.

TIL Marxism causes natural disaters, which apparently don't happen in the United States.
While I believe schools to be terrible (great for seeing, meeting people; terrible for the forced curriculum down your throat part), I disagree with the author's reading (even if correlation doesn't imply causation) that points at school being bad for kids.

This could very well be the effect of a year of lockdown and having to go back in the real world. If that's the case, we'll see the number of suicides drop over the next years.

Lockdowns caused me to fall into depression again but I never thought about killing myself. There was always hope that things would eventually go back to normal, you were .

Now that the normal is back and I'm confronted with a reality which is partially worse than lockdown times (eg. having to go back to the office for employees, having to go to school instead of studying on zoom for students) I have a year of mental issues which I didn't fix, I'm burnt out, there is nothing else to wait for which will magically improve my life and I'm faced with the challenges of the pre-lockdown world. It doesn't surprise me to see suicides going up.
I started with the Next.js TypeScript Blog Template, and built things gradually, as I needed them.

By the time I realised I'd need a Stripe integration, I had already built enough functionality that it didn't make sense to replace everything with Divjoy.

If I were to start completely from scratch, sure, I'd use Divjoy from the start.
How is it a zero-sum game? When one person learns more it does not mean others will learn less. The opposite is true, the person who learns can then teach others.

The government should be able to provide enough education to anyone who needs it. But to do that they need many teachers. Somebody must educate the teachers. More learning overall grows the intellectual capacity of the whole nation, it is not a zero-sum game.

I seriously think this is about Chinese Government not wanting its population to be educated in Western values.
Even if you could find the original crypto header, You still need to know the password to unlock it. On iphones, the secure enclave will hold the decrypted key while its running but you need to enter the password after a reboot.
Astronomers make first clear detection of a moon-forming disc around exoplanet
Yes, a considerable amount: https://en.wikipedia.org/wiki/Climate_change_and_poverty
This post gets flagged in 3... 2... 1!
$50 per year hardly accounts for externalities