skysight-inc/HackerNews huggingface dataset:
> Semantics.

Nope, don't confuse semantics with being just plain wrong. The definition of a solution to a differential equation is quite straight-forward, and a value within the problem domain is not it, even if you use the solution to determine that value.

> I want some numbers out of the equations that will match the real-life engineering problem.

If that's what you want then what you want is not the solution to the differential equation. You seek something else, and in a scenario where you tolerate a significant margin of error.

Meanwhile, you can be taught to determine the exact solution.

> Approximations/estimates are fine as long as I know the limits of their applicability.

That's not what Runge-Kutta gives you. You might get it with Galerkin methods, but not with numerical approximations.
> It would help America more to have universally "pretty good" schools, than a few great schools in a sea of "pretty bad" schools.

Ok, sure, but we don't need to destroy the great schools in order to work on making more pretty good schools.

If you want to turn bad schools into pretty good ones, please leave the great ones alone, while you go about that.
Because they aren't child psychologists and therapists who deal with actual cases?
A good bet is "yes." If not this year, then next. See also Proposition 16 (https://voterguide.sos.ca.gov/propositions/16/index.htm).
Depends what you see as the point of affirmative action. One of the primary benefits so far as I see it is that it helps make the country's ruling class more reflective of the underlying population. There's a lot of research that increasing representation of disadvantaged groups improves their outcomes.

1. Gender: https://economics.mit.edu/files/792
2. Caste: https://www.uh.edu/~achin/research/w16509.pdf
3. Policing: https://www.bloomberg.com/opinion/articles/2020-07-01/how-to...
Has anyone tried comparing Xen's performance on the Pi against KVM? Any reason to choose the former over the latter?
Yes, but the "pretty good" schools come from kids and families taking academics seriously. In Finland that's the default, but in the US you need an entrance exam to keep the jocks out. It's no surprise that middle-class white kids are underrepresented and would like to get in without all the hard work and discipline.
America is having a code red moment. Which enemy is likely to strike first?
It seems like every attempt to learn from other systems when discussing American issues, from education to public transit to healthcare to gun control, is met with a wave of “yeah that could never work here because we’re too [big, diverse, spread out, individualistic]. Have some humility and consider that other countries might have better outcomes in some things due to better policy choices, not just because they’re smaller, more homogeneous, colder, warmer, or whatever.
Critical mass would be one way to put it. There was also a willingness to let the kids do what they were interested in and provide support for it.

For example, in 10th grade, 4 of us got together and decided we wanted to make a new high temp superconductor. (87-88, around the time that the first LN2 one was out there). With the support of a couple of the labs, we researched it, ordered chemicals, made a pill press, mixed it, pressed it, baked it in a o2 rich environment, and then tested with ln2. I think at the time it was the first high school to make one.

None of that was something that was part of the classroom flow, it it was absolutely something that was supported.
Gregory Bateson, "Steps to an Ecology of Mind" and "Mind and Nature: A Necessary Unity".
It broke the back button and insulted my browser....
Well that's what I mean by ostensibly and "not saying it always works".

There's a long list of ways it can go wrong.
The U.S. has been a White super-majority country for centuries, and is still a White majority country. Is it 100% [racism/colonialism(what?)/biogtry] for people to believe that institutions follow the demographics of the communities that they exist in? As the demographics of the country change (less and less White), so will the institutions.

The school in question is 19% White. 75% Asian. Fairfax County is 63% White, 18% Asian. Sure. It's all racism.
My wife is Estonian and she would disagree with you strongly.

How your government allocated the funds was your governments doing, but the money that was sent to Estonia has been invested and that’s what it has been... an investment.

Any investment that does not yield returns that cover its costs is failed.

Infrastructure facilitates so much of what makes up society that -not- having it can be much more costly than having it.

But in those cases it doesn’t it’s because government corruption or ineptitude has eaten you from the inside.
Personally I find the idea any of the U.S.'s enemies will "strike first" because Trump is incapacitated with COVID ridiculous. But interesting this is being pushed into the discourse nonetheless.
I agree. The biggest eye-opener was learning that the output of some dynamical systems described by deterministic diff equations cannot be predicted because infinitesimal changes in initial conditions lead to exponential changes in the output (popularly known as chaos). This was profound just like Godel's Theorem - we cannot know everything.
California Is Built to Burn
The populations of Italy and India aren't even remotely similar.

India dwarfs the entirety of Europe, never mind Italy, by population size.
GPA is a biased criteria in an education system where some people have disproportionate access to educational resources. The United States is one such system, with white people and affluent people having considerable advantages^ over others.

The post’s author correctly observes that the resulting random lottery will accurately represent the biases that influenced the applicant pool, and therefore the outcome will be a school that reinforces societal biases rather than weakening them.

The error in reasoning here is in the relative evaluation of “bias in entrance exams” versus “bias in GPAs”. The school has thrived under the former bias, and the essence of the issue is simple:

Which biases are healthier for students and society? The biases of school’s exam process, or the biases of GPA?

And that phrasing highlights a particularly ugly truth that most of the citizens supporting this change will do everything in their power to refuse recognizing consciously:

“A system that’s biased towards my family’s skin color and/or wealth level is better for my family than any system that is not biased in my family’s favor, no matter how good it may be for society in general.”

^ For example, “test prep” biases GPAs towards students with wealth and free time, against students with evening/weekend jobs and family responsibilities.
I'd appreciate a response to my prior appeal. The only change I'm noticing is that you collapsed your own comment and my reply. The optics of how this has been handled seem a bit questionable to me.
BBC Genome
https://youtu.be/12fR9neVnS8
Sure, but saying nothing would have been even better. Peterson is a known commodity. All the arguments have been made, and people have just been yelling at and taking swipes at each other for a long time now. Repeating that doesn't help.
https://news.ycombinator.com/item?id=23197966 with almost 500 comments covers it, the top comment is a HN moderator. So the moderators are at least willing to work on CSS, you might want to email them for an update.
It's all relative. Shrek made $487M internationally, on the same $60M budget. And it also started a franchise that grossed over $2B
Ask HN: My client wants to resell the project, how do I handle this?
Hey fellows, just got an email from my client that he showed off the software I built him and another person was so impressed with it that he wants to have that as well + some additional work.

Context about the project: It's a small application to managed some service flows from submission to handling logistics and creating offers and invoices. Really barebones, but nice UX. Code is not perfect and sometimes when I add a feature I do have to refactor a bit because I wanted to hit the ground running.

The project was a fixed price project and I estimated WAAAAAY too low for it so in the end I got 7k for around 200h of work (and still continuing as I need to add some features to fulfill the scope). My hourly rate at that point was 80€/h and I wasn't booked to the brim.

Now I have way too much work that pays a bit more than that but I'm in the dilemma of

a) not wanting it to be resold for the price he paid but the actual price in the end (his IP so he can have it all)

b) not wanting to have additional work at my previous pricepoint. I kinda also feel that since he as a business sold it to another business it's almost already enterprisey in the pricing and I can afford to raise my prices high (similar to how agencies cost 200+/h)

c) building a feature for any party that the other party wants as well

Any tips, recommendations or anecdotes are appreciated, I'm a bit paralyzed by that to be honest and couldn't do anything this day but I'll be able to answer any further questions that may need to be answered
They're quite distinct problems. Study after study shows that Black boys have much worse outcomes than white boys even when comparing families that have similar incomes: https://www.nytimes.com/interactive/2018/03/19/upshot/race-c.... White boys whose parents have an income at the 90th percentile (compared to all households) will statistically end up around the 70th percentile (regression to the mean). A black boy raised to parents who have a 90th percentile income will end up at the 55th percentile.

There is something unique about the economic status of Black Americans, especially Black boys. The income gap between Black and whites hasn't narrowed at all since the end of Jim Crow in the 1960s. Gaps for other groups have disappeared or are in the process of disappearing-even groups, such as Hispanics, that typically come into the country near the bottom of the economic ladder.

> The research makes clear that there is something unique about the obstacles black males face. The gap between Hispanics and whites is narrower, and their incomes will converge within a couple of generations if mobility stays the same. Asian-Americans earn more than whites raised at the same income level, or about the same when first-generation immigrants are excluded. Only Native Americans have an income gap comparable to African-Americans. But the disparities are widest for black boys.
Oh man, yes, you are correct. My brain was somewhere else. My bad.
I specifically said average, because it’s important to note that the Swedish personal income tax rate starts at 32% with a tax free threshold of about AUD$3k.

Re: healthcare, you won’t realise how good you have it until you try to go to a Swedish hospital with a torn ACL only for a nurse to diagnose you with a cramp, direct you to take paracetamol and refuse to let you see a doctor. Or when you try to have a blood test done and realise it’s not a 24 hour turn around, but a 24 day turn around if you’re lucky with 1-2 years minimum to see a specialist.
Dissecting Lemire's nearly divisionless random number generator
The root zone has grown considerably thanks to a number of new gTLDs, but currently sits at around 2 MB:

https://www.iana.org/domains/root/files

That's in human-readable ASCII. A wire format could probably shave a chunck off that, but distributing deltas instead of re-downloading the whole file each time a change is made would further reduce the required data transfer amounts to mere bytes per day on average.
I've heard Inifnifactory is like Factorio lite

You know what's funny? I'm a programmer and I think the same of XCOM 2. It's a game where everything's always on fire, everything always goes wrong for you to fix, and there's never enough time to sit back and relax. It was a game about grit and perserverance against overwhelming odds... and it felt exactly like my most previous job as as a Senior SE at a small startup.

No fucking thank you.
It's funny that so much of what we do as humans is signalling.
Counter example the hateful Microsoft seems to be able to keep stuff working for decades.
Just testing that this works, this programme is what got me fascinated with Special Relativity at the age of 8.

Einstein's Universe by Nigel Calder, presented by Peter Ustinov

https://genome.ch.bbc.co.uk/560c4f82b76e49728f5b63774a79f106
Thanks. Changed from https://www.androidpolice.com/2020/10/02/google-says-beauty-....

We also changed the title from the clickbait of "Google says 'beauty' filters are bad for your mental health" and the bland corpspeak of "More controls and transparency for your selfies" to what appears to be a representative sentence from the article.
The best way to contact the mods is via the Contact link in the footer.
There is no name-calling or personal attacking in that comment. The one qualifier that could possibly be interpreted as "an attack" is referring to an inanimate subject (data crunching) not to any given participant in the conversation. Learn to read.
You'll see these kinds of filters at lots of places in Asia. For example, in Japan, there are many "ki-re-i" photo booths that will automatically clean up your face for your ID pictures.

Even the old Panasonic digital camera I bought 13 years ago has a smooth skin option.
The end game of the "free market" is corporatism.

That would be the case even without politicians doing favors and handling out monopolies, and asking for all kinds of BS regulation that only big manufacturers/companies can afford.

After a company gets large enough (because of competence) it's not easy anymore for lesser companies to compete with it.

That might have been the case back in Adam Smith's time, when it just took some ingenuity to come up with an idea, and the money to build a few factories, which were much simpler and 1/100+ the cost of today (inflation adjusted).

[That was true even back in "early web" days. It was much cheaper to make your own competitive search engine that it is to compete with Google today].

It might also have been easy when new paradigms were taking off, and old companies couldn't work with them (e.g. switch from mainframes to PC), living a spot open. Now big companies can diversify more easily, predict future trends (like Google adopted to a mobile world, and will adapt to VR or whatever comes next).

Now the technologies are more involved (even in "non tech" companies) and the stakes higher. Even if you can just design your advanced product and order units from a generic chinese manufacturer, you wont get the same economies of scale, preferential treatment, distribution, etc, as a large company.

And if some wanabbe company gets threatening enough, a bigger company can just buy it. Especially since going to the stock market as opposed to being self-owned means all companies are up for sale.
the way I deal with it.....

Don't come up with weird ass theories and posit them as true or even "possible". Things we don't have good evidence for, at best, can be said to be "an intriguing idea". They are fun to ponder, and help us consider what possibilities could lead to better descriptions of the cosmos, but they don't lead to any actual understanding of what is real

So the best thing for a lot of these questions is to get good at going "I don't know" and instead trying to understand what we do know. We have a bunch of problems to solve about the universe (dark matter / quantum gravity) that may change the nature how we might even ask this kind of question. So I mainly focus on what's the most we can know with reasonable certainty at the moment.
You have, quite expectedly, completely failed to grasp my point.

Our perspectives on this topic could not be more diametrically opposed.

Perhaps your epistemology needs a checkup? How many other things have you read that fundamentally disagree with you, yet you have incorrectly inferred they did not?
Note that the submitter is the same fanf as in this winning entry [1] in the 1998 International Obfuscated C Code Contest (a bracket abstraction algorithm from lambda calculus into combinatory logic).

[1] https://www.ioccc.org/years.html#1998_fanf
Governments ruin all good things.
I was never on MySpace and Friendster but Digg was over in a heartbeat with the introduction of their redesign.

And I don’t care about Reddit one way or the other, it kind of stinks but it’ll ultimately be replaced by something else that also stinks.
Unless you're someone who gets really anxious/paranoid about being tracked by a BigCo, I can't imagine it making an outsized impact. The weirdest thing might be how that activity tracking is used to try and sell stuff to you, and sometimes that advertising is pretty compelling as a result. But I'm not sure how that compares to the more active influence of "influences" and social media across the larger population.
Dunno, I’m not sure I would have had that but I got in. Jr high was kind of a bad time. Times change and all, I’m not sure what the grades mean any more.

But that’s (3.5) what I got there, and and in college.
Obviously the one from 2018. It should still be quite modern but with big issues already ironed out.
> It was the high school with the highest average SAT score

It also shouldn't be that surprising that a school with an SAT-like admission test would produce graduates who have incredibly high SAT scores. It is an admission process that highly selected for great test takers.
> Edit: Example: I couldn't take a picture of the smoke on the West coast recently. The dark grey and orange skies would all come out looking blue or something. It's like the 'camera' is telling me I'm f'ing crazy for taking a picture of smoky skies, and surely I want to pretend the smoke isn't there at all! That's why I'm taking a picture right? So I can pretend that reality isn't real. I have no photos that match the smoke. I have only my memory and other people's photos. WTF.

That's automatic white balance adjustment. It's not used to an orange sky, so it can't figure out what color should be considered "white". If you want an example of why this is important, turn off automatic WB and take a photo under fluorescent light followed by a photo lit by candles.

I have no idea about Android phones, but iPhones do some amount of denoise, contrast adjustment, and a few other limited postprocessing steps automatically.
That's not how cameras work though. The raw output of a phone camera would be horribly off-color. It would NOT capture the image you are expecting. So the phone applies a number of filters to try to correct the flaws inherent in a camera with such small optics. You only notice when the external conditions (smoke-filled skies) don't match the assumptions that went into the filter design.
XML tried to do that with the anyURI data type

In XML/XSD 1.1 they gave up on it, and consider any string as valid anyURI

I tried to implement the old XML types. I built a huge regex from the RFC, but it did seem to cover all cases
This is the money quote about lottery:

"In a world-historic irony, the main effect of this “solution” will be to drastically limit the number of Asian students, while drastically increasing (!!!) the number of White students. The proportion of Black and Hispanic students is projected to increase a bit but remain small. Let me say that one more time: in practice, TJHS’s move from a standardized test to a lottery will be overwhelmingly pro-White, anti-Asian, and anti-immigrant; only as a much smaller effect will it be pro-underrepresented-minority."

Personally speaking I went a competitive college where many of my classmates were from such H.S., they really were a cut above in terms of math and science. Of course I don't think STEM is the end-all-be-all, and I don't think getting rid of TJHSST is going to solve the country-wide equity problem due to race.

But if there's sports magnet schools like Montverde and Sierra Canyon, then maybe there could a be a place like TJHSST and such?
Why are you trying to publish it in a journal?
With covid, many hospitals have locked down, preventing family members from entering to advocate for their family members who are there. To gain access, some hospital require you be tested, and then this test has to be documented properly so that you can get in, which takes days.
It isn’t a piece of hardware. This is the false conceit underlying not just the article, but also the obscene pile-on of uninformed ranting in these comments.
Fire Grenades: History and Collectability
Honestly, the premise seems exactly backward to me. I remember taking a selfie of myself on two different phones to compare their forward-facing cameras. The image quality on both was roughly the same, but one had subtle skin smoothing and lighting adjustments, the other one didn't. The one with "beauty filters" generally matched what I assumed I looked like to other people. The one without the "beauty filters" made me look much worse than my own mental picture of myself.
I'm sure the one without beauty filters was more accurate, but it made me more self-conscious about my appearance and kinda made me realize "shoot, I'm actually uglier than I thought", and that bummed me out. It certainly didn't help my self-esteem or self-confidence! I rather suspect that subtle automatic retouching would actually be good for one's mental health.
Please don't feed the trolls. Or, as the HN guidelines euphemistically put it:

"Don't feed egregious comments by replying; flag them instead."

https://news.ycombinator.com/newsguidelines.html
Strapped startup declines acquihire, Apple poaches key engineers; NP, says court [pdf]
As far as we know, he is free to travel through all of Russia. That's a lot of freedom
I like the inclusion of synchronising browser playback also, that's something beyond what snapcast offers. And it seems to be based on webRTC, is that right? Any pointers for integration with a gstreamer-based source?
Of course, by mixing any substances you will never obtain anything, because eventually the system will reach some equilibrium state.
What is needed is a continuous flux of energy and precursor substances, like a source of volcanic gases, or, more likely, an alkaline hydrothermal vent.

Only under the action of such a continuous flux, complex systems may emerge. The simplest example is the appearance of oscillations when you attach a source of energy to various simple arrangement of devices.

For the appearance of life, besides the continuous flux of energy and simple molecules, catalysts were required, which must have been metallic sulfides, mainly of Fe, Co and Ni.

If we would reproduce such a setup now, a large variety of organic compounds would be synthesized. A similar process can be used to obtain synthetic gasoline.

Nevertheless, for the unlikely event of creating a self-replicating system, a very long time will be needed and also the chance of the right combination of metallic sulfide catalysts being located in close proximity and the chance of favorable proportions of the precursors in the flux of gases.

For now, we do not know enough to be able to estimate how likely or unlikely was the appearance of life, but we know that it was possible (I mean we know that this is possible from chemistry, independently of the fact that we know that we exist).

Such an estimation would become possible only after someone will succeed to design a self-replicating system similar with the first life forms.

The first life forms probably not only did not have nucleic acids but also did not use yet phosphate in any way and they were not cellular but they were attached on the surface of minerals. At some point, but probably later than achieving replication, they might have had the form of membranes closing pores of minerals in hydrothermal vents, before the membranes became able to close, forming cells with an interior separated from the exterior. Closed cells could appear only after having a more complex metabolism and various kinds of ionic pumps, while the earlier membranes closing mineral pores could passively exploit the ionic fluxes of the hydrothermal vents.