skysight-inc/HackerNews huggingface dataset:
So do link shorteners. I don't think you can really know what link you're going to in general until it's in the address bar on the actually opened page.
Good first issue for a new contributor?
That quarks have charge, means they participate in electromagnetic interactions. So they can absorb, emit, & scatter photons.

It doesn't matter that a neutron is overall charge neutral, because it's the elementary particles that make up the neutron, that participate in interactions.

This is why, you don't fall through the earth, despite being made of charge natural atoms, because the surrounding electrons of our atoms repel those of the atoms making up the ground, counterbalancing the gravity pulling us down.
I wouldn't chase past performance.

Moore's law is dead. HW acceleration is moving from "hot rodding" to "the only way forward." The future is already yours for the taking.

At the same time, it still doesn't hurt to learn new things...
You read work emails? I get so many that 99 percent get deleted in bulk. I've probably read 30 this year.

Apparently if it's important someone will come ask if I got the email within 5 minutes anyways
Show HN: Oat++ – Zero-dependency C++ framework for high-performance web services
I agree. Most telemetry gathering is not malicious. But I always disable it simply because I use a lot of software. Telemetry from all of it would just be a big outgoing stream of data all the time.
Are you considering adding app capability : SDK? Also, do you need entry level ML people?
Nothing new here, VSCode had this for a long time. Also I don't find anything wrong with shipping software with data collection on by default.
> reward you get for taking the risk won't be high enough.

Also, as long as the tax rate is less than 100%, the reward will be higher than 0, which is what you get if you don't invest at all.
> Should parents be allowed to try to give their children a boost in life?

Should society be allowed to try to give the poor but genetically gifted children a boost in life?

Nobody’s suggesting that parents shouldn’t use whatever resources they have. The question is what we should do as a society with all the potential we’re wasting. If every dollar we spent on boosting smart poor children yielded two dollars back to the economy, why shouldn’t we do that?

> if the parent is able to provide ... I think that’s actually progressive at a societal level

The argument that those with private wealth helping their children is making society better is the opposite of what is normally called “progressive”. It’s trickle-down economics. When people say “progressive” they are talking about policies that benefit everyone, not policies that say if the rich do well, then surely we’ll all benefit from the margins and leftovers.

> The problem with summary statistics like in this article is that there’s no nuance — just a brunt “unfair” reflex triggered in the reader.

Life is extremely unfair, and very biased toward the rich. It’s not a surprise, we already knew it. This article just highlights some papers that confirm scientifically one of the many ways life is unfair. There might be some nuance, and of course there usually is when the press covers scientific research, but are you suspecting some specific nuance?
This is the exact reason I failed my driving test 7 times before finally passing (pass rate in UK is ~60%). It's hard to describe to people that it's not that you're necessarily bad at the task, just the anxiety causes you to react in a bad way.
This article reminds me of how it felt to be on the internet as a child.

You stick to being a child on the internet.
Perhaps it's a newer term. Now "short and distort" is around, for instance prominently as section 3 in the wikipedia article on "pump and dump" [0], and investopedia [1] also describe it.

[0] https://en.wikipedia.org/wiki/Pump_and_dump
[1] https://www.investopedia.com/terms/s/shortanddistort.asp
Props to you for actually digging in to the issue instead of the jump-to-conclusions "gross" comments.
The Remarkable Brainwaves of High-Level Meditators
I'm fully willing to admit that there may be functional cultures in the world which frown upon showing preference to friends or family at the expense of random people. I've yet to see any of them though.
I wear headphones when I'm out most of the time, but at least half the time I don't have anything playing (and a third of the time it would be an audio book, not a constant noise like most music). It's still a big difference in how connected I feel to my surroundings. I'm not sure it's related to sound, as my headphones don't dampen much. I think it's just the expectation of people when they see someone with headphones and it allows me not to interact as much.
I meet a lot of people professionally, typically in a single week 10 to 15 new faces which I need to interact with intensely for a week and then I will most likely never see them again. So forgetting names is something that happens to me and my crew all the time.

My personal trick is to ask someone how to spell their name, this usually works just fine, unless they are called John Smith.
>“Marriage Rebranded” – Short-term or “beta” marriages offer couples the chance to test the waters before being legally bound. People expect less from marriage.

Haha, someone should let this author know about dating.
Couldn't that be true for other prescription drugs like Prozac? Or maybe for NSAIDs which I think have had unexpected affects due to sensory changes.

Given that the FDA requires no long term testing of any nature, it seems contrived to pick on one longterm prescription as flawed because you have some kind of problem with not blackmailing people into treatment they don't want and that isn't helpful.

Forced therapy is a form of punishment, and the real intention behind mandating it for something you could just manage is to try to use the addict as an example of applying the stick to people with the "wrong values" for the rest of society.

The result of that is cross generational addiction problems because prisoners have children, children get traumatized by stressing their parents and trauma is addiction predisposition.. "a shitty life."
> And "end facets of the optical filter"? What is being thrown around?

One of the mirrors of a Fabry-Perot filter mirror pair. It's displaced with an amplitude of ~200µm at a frequency of about 500kHz:

d²/dt² 0.2·10^-3m * sin( t * 2pi * 500·10^3/s) =
- 2.0·10^8 pi² sin(…) m/s²

That's about 10Mg of acceleration. Yes, these filters exist, and yes, they do work very well and reliably. These filters are the core technology of FDML lasers. See the patent here: https://patents.google.com/patent/US20130070794A1/en

You can buy FDML lasers using these very filters from the company I co-founded: https://www.optores.com/index.php/products/31-next-generatio...
Good point! I forgot about PET scans.
You doubt that companies would do this? Amazon already does it. Airline companies use location heuristics.
This. If society must be based on equity rather than equality, then I'd rather see it be done by boosting people up to the same level, rather than knocking everyone down to the same level. Otherwise, society could start looking a lot like Harrison Bergeron, and that's not a society I'd want anything to do with.
No, you should ALWAYS explicitly ask for user consent. You should explain exactly what kind of data is being collected and how it's used and ask them if they are fine with that. Anything else is unethical.

I'll happily enable certain kinds of data collection when a tool is transparent and it makes its data collection opt-in.
Even Stalin felt the need for kangaroo courts before offing his enemies, as does Iran, for that matter.

Saudi Arabia is unique in its failing to even pay lip service to the concept of rule of law.
That's a really solid list, thanks.

Next time I do a weekend hackathon I want to create something that helps people like us share OPML files. All the RSS directories I've tried have been pretty subpar. The feedly directory is good, I just wish I could export the WHOLE directory as OPML (I wonder if someone's already done this)
>So I hate logical positivism. From logical positivism we get the philosophical foundation of modern tracking and advertising, that every data point obtained about a subject is necessarily meaningful and actionable, and that which cannot be measured does not exist.

That's a straw-man version of logical positivism. If you're able to talk about a failure of the measurement system, you've just measured the failure (by your senses, presumably). So, the positivists would say that it existed.
Why the cooperative model needs to be at the heart of our new economy
Other than a different tech stack, I've got all of these. This is totally doable as a freelancer.

I can't offer any magical advice, other than that, I've made it my policy to never work with anyone who might be a jerk, and to stop working with anyone one who got past the first filter and turns out to be one.

So yes, if you actually want control over your work environment and who you work with, your options are usually either freelancing or owning you company.

Good luck, and you aren't asking for too much!
That's not what the friend is assuming per the wording.

The friend seems to be plainly stating they don't care if the max outcome is what is occuring or not, insofar as they all at least do better. Helping their friends out is more important than maxing out the quality of the outcome.

Societally, reinforcing and protecting social trust systems may be dramatically more important than maxing out business success outcomes.
All of the skyscrapers downtown have underground parking. You can make it level one if you want.
No, it's much simpler than that. A journalist was murdered, and that hits close to home for... journalists. Unlike genocide in Yemen.
Saat erkek
I would imagine it does, but I'm also curious how quiet it had to be for this to work.
Doctors in Scotland Are Literally Prescribing Nature to Their Patients
Interesting. That's 10^14 kg, which, according to the above, would be between 10^24 and 10^27 seconds to evaporate, which is at least in the quadrillions of years.

As for the radius... Looks like the Schwarzchild radius is proportional to the mass, and for the moon (7x10^22 kg) it's 0.11x10^-3 meters, so this 10^14 kg mass should be maybe 1.5x10^-13 meters, which is 1.5 x 10^-11 cm. Nice. It looks like Niven did his homework.

Incidentally, Wiki says that Hawking argued for black hole evaporation in 1974, and Niven's story won an award in 1975, which I assume might indicate it was published around then. Seems it'd be a close call whether Niven heard about it before publishing his story.
The problem for a hole this size isn't the evaporation time; that's way longer than the age of the universe. The problem is the Hawking radiation pressure.

Some quick formulas (M is mass of the hole in kg):

Evaporation time T = 8.4 x 10^-17 M^3 seconds

Hawking radiation power W = 3.6 x 10^32 / M^2 Watts

Hawking radiation pressure at 10^-10 meters (roughly one atom) distance P = 9.6 x 10^42 / M^2 Pa

(Note that the last formula assumes that the hole's horizon radius is smaller than 10^-10 meters, which it is for Niven's hole.)

For M = 10^14 kg, we get:

T = 8.4 x 10^25 seconds (which is more than 10^18 years)

W = 3.6 x 10^4 Watts (36 kW, comparable to your car's engine traveling on the highway with a family and luggage, but pretty darn bright for something that's basically just a light source)

P = 9.6 x 10^14 Pa (almost 10^10 atmospheres!)

So this hole won't accrete matter, because anything that gets close to it gets violently pushed away by its Hawking radiation. It will tunnel its way through Mars and out the other side, and then back again, executing simple harmonic motion, indefinitely.
The problem with antimatter is that it very much interacts with normal matter, quite violently in fact. So if dark matter was antimatter we’d be bathed in a sea of radiation as it continually annihilated with ordinary matter, which would make it quite easy to detect ;)
Most phones have stereo microphones and they're individually accessible by apps. Combined with the accelerometer for rough position change tracking, it must be possible to build. Would be super cool to see in the dark like that.

Edit: wait, we don't just have two mics in our head, we also have our outer ear that's required for this. I guess the phone would need physical addons for this to work.
Please explain how "cycling to a restaurant" works for a family with young children...don't downvote, explain
Hold the lock button and one of the volume buttons for 3 seconds. This disables biometrics, and gives on-screen swipe options for MedicalID and Emergency SOS. Pressing the lock button 5 times also disables biometrics, begins a 3-second countdown to auto-call your Emergency SOS contacts and 911. One nice touch is that the language used to let you know Touch/FaceID are disabled doesn’t rat you out to the cops (just says that Touch/FaceID doesn’t recognize you, not that you intentionally disabled it). If these don’t work for you, there are options under Settings, Emergency SOS.
I believe it’s generally believed that dark matter clumps near galaxies because it interacts through gravity. So would it be reasonable to say that it should clump together near massive objects in the solar system?
I learned a lot from this post. I didn't know that so many observations resulted in the same 5/6 ratio.
> Calling the Cavendish experiment a measure of gravitational waves, though, is sorta like saying Newton discovered an early theory of relativity. Not wrong, in the most pedantic sense, but definitely a bit disingenuous.

I didn't see the need for sarcasm tags. But then again, if you're honest about it LIGO is not that much different in _basic principle_ from the Cavendish experiment (measure the displacement of test masses), only that the sensitivity of the displacement detector is a lot of orders of magnitude higher.

And remember that a core step in the Cavendish experiment is to "flip" around the position of the big masses, so there's some kind of gravitational transient pulse event, which, if you're honest about translates into a very broadband spectrum, when compared to the integration time of the experiment.
Ask HN: What exactly does a Head of Engineering do?
I am planning to apply for a position of Head of Engineering (I am currently a Senior Developer and would like to move on to a more responsibility position? and with so many resources online, with different titles like VP of Engineering, the role and information is getting overwhelming. So what exactly does that role do? I know there are less coding or none at all. What tools are used usually? Excel? Word? Thanks!
Process resource limits under the hood
Question 1: where does the name come from?
In general, though, shouldn’t we have dark matter “orbiting” massive bodies bound by their gravitational field?
This article seems to be missing just how hard it is to learn and use Rust compared to Go. That's a big consideration in the popularity of a language. The article seemed to miss the forest for the trees, as they say.
Finally a third independent source for x86 instruction timings, joining Agner [1] and instlatx64 [2].

Is the testing code open source? There is no obvious link from the main page.

[1] https://www.agner.org/optimize/#manuals

[2] http://users.atw.hu/instlatx64/
/s You guys still in the code-compile-run-cycle?

*please not the sarcasm marker
Russian anti-corruption officer shot dead in the street
It looks like it hasn't been updated in years, but http://www.powerlabs.org/index.html has some cool content
> Neither Ruby nor Python support the idea of 'code is data'." which is not entirely correct. You can clearly supply code as string data

That's just some kind of eval feature. Many languages can execute strings of code at runtime - for example one could write C code to a tmp file, call the compiler, and load the object file -> that's how some Lisp-to-C compilers work. But it's just the usual C code as text.

That's not 'code is data'. Code is data means that code is actually written in a data structure which is serialized and de-serialized. In Lisp code is written as s-expressions.

'code is data' does not mean I can treat code as a string and evaluate it, it means: code is actually read, written and manipulated as structured data - and not as blob of text.

Ruby code is written as textual Ruby code, where Lisp is written as Lisp programs in s-expressions.

What you tell me is the code is text, which can be somehow executed at runtime, which is an entirely different thing.
Most of the embedded world has 8-bit bytes, not just ARM. Even when it comes to XAP2, there's the newer XAP2b which apparently supports byte addressing [1].

But if you do want larger bytes… well, the first step would be getting LLVM to support them. According to this blog post from last year, it's theoretically possible but would need work:

https://www.embecosm.com/2017/04/18/non-8-bit-char-support-i...

And of course, you'd need an LLVM backend for the architecture in question.

Only then would the ball be in the court of rustc itself. At that point, I still wouldn't expect non-8-bit byte support be a priority for the core developers, but I expect patches would be welcome. Though if the LLVM backend includes support for emulating u8 and u8 pointers where necessary, relatively little change would be needed from rustc anyway.

[1] "The XAP2b adds data-side byte addressing support to the XAP2 by utilizing the 15th bit of the data-side address bus to indicate byte or word accesses." http://static6.arrow.com/aropdfconversion/ef173143abb7413e69...
Capital gains tax is calculated from nominal gains instead of inflation-adjusted gains. That's one reason it's lower.
Ditto. I'm awful with names and much of what the grandparent wrote applies to me.

Couple of things that sometimes help, thought not as much as I wished they did -

In meetings, I have a notepad out and write them down. Or ask for business cards. Sometimes with cards I can't remember which belonged to whom, but it narrows the possibilities way down, at least.

Sometimes if I can quickly think of someone else I know with the same name, it will anchor it a bit for me. Without repetition I'll just forget it later, but it gets me through a conversation.
Reading variables is hard.
Note that "XAP" refers to a whole range of processors with incompatible instruction sets; the latest is XAP6 [1].

[1] https://en.wikipedia.org/wiki/XAP_processor#History
Well this is certainly one axis along which they vary.

There's a line between "is it OK to start a start-up with your dorm-mate?" and "is it OK to spend 5% of the nation's budget buying submarines through your brother-in-law's banana company?"

You have information about your dorm-mate, and you aren't acting on behalf of others. But if the same norms applied to CEOs and judges, we could not have our civilisation.
It's only impossible when you look at rapidly developing, easy to use systems.

Which is my point and why the broad assertion is wrong.

Look at a VxWorks type OS. Or OpenBSD. Limited capability and compatibility, very strong security guarantees.

"Completely secure" isn't a mythical unicorn. It just costs time and money. A LOT of time and money.
Key points:

" Not problem-solving leads to better problem-solving skills than those doing problem-solving" - For beginners.

"putting introductory students in the position of discovering information for themselves is a bad idea"

"Intermediate students do learn better with real programming, real problem-solving. There is a place for minimally guided student activity, including programming. It's just not at the beginning."
Look, Dan Geer is fine, so I won't snark and say "that's one of the nicer things anyone has said about me on HN"†, but let's be clear: Dan Geer and I have a very different kind of day-to-day workload. We'd probably come to different conclusions about all sorts of things. I would also in a million zillion years never quote Nassim Taleb on anything. He's wrong here, as he has been in the past. We've all been wrong about things! I just happen to be right about this one thing.

† Sure, I just did, but I'm being upfront that it's a cheap and unfair thing to say. I'm human.
In highrise towers this works, but makes no sense for a forty year old strip mall
One of my kids picked up my phone and thought the pattern unlock was a drawing game. Guess how it ended :)
Politics and sales are two practical uses for this super power. Weather either can be used for good is another question. Any job where part of your job is to make the person you are talking to feel special is where this comes into play.
If you're looking for a bit of an unconventional entry point, I recommend the seminal text 'Elements of Information Theory' by T. Cover (skipping chapters like Network Information/Gaussian channel should be fine), paired with David MacKay's 'Information Theory, Inference and Learning Algorithms'. Both seem available online:

http://www.cs-114.org/wp-content/uploads/2015/01/Elements_of...

http://www.inference.org.uk/itprnn/book.pdf

They cover some fundamentals of what optimal inference looks like, why current methods work, etc (in a very abstract way by understanding Kolmogorov complexity and its theorems and in a more concrete way in MacKay's text). Another good theoretical partner could be the 'Learning from data' course, yet a little more applied: (also available for free)

https://work.caltech.edu/telecourse.html

Excellent lecturer/material (to give a glimpse, take lecture 6: 'Theory of Generalization -- how an infinite model can learn from a finite sample').

Afterward I would move to modern developments (deep learning, or whatever interests you), but you'll be well equipped.
The problem with that approach though is that it's never clear cut.

Maybe someone is "vastly more qualified" technically but doesn't have any business sense or some other quality that is unknown to the rest of the group. There were many times where I thought that the wrong person was promoted or hired, to find out later that they were actually a good fit. Were they the PERFECT fit? I don't know, but there is value in having history with someone to have a higher confidence they will meet the minimum standard.

There's always someone or some group that is "better" for a job or acquisition or whatever based on some metric.

It's a real problem in my mind for "market information." Generally people go for a product they know, that can fit the bill, over a product they don't know that might be better. Same goes for hiring and personnel etc...
The Enemy of the People.
Blinkenlight front panels for everybody
Well, angry anonymous commenter, I've been working in software security since (checks notes) 1993, and professionally since 1995, and the claim you're making just doesn't hold up. "The Internet" may have subsumed all sorts of things, but it's ~1.5 behind computers and telecommunications. Before there was an Internet, the world ran on dial-up modems and X.25, and people were breaking into things then too.

Things have gotten better, not worse, and personally, if I was being more aggressive about the argument (which I guess I am now), I'd go further and say you can't have been paying any attention in the 1990s (or to the history of what happened in the 1980s) and think otherwise.
yeah just like for every large Windows update your default browser accidentally gets reset to MS Edge

totally a bug
The real problem is the storm surge. The frame or concrete surviving doesn't matter much if you have to tear it all down anyway, because water ruins everything.

Wood frame houses can absolutely be built to withstand wind damage. The problem depicted in these pictures is mostly storm surge.
sure it can be used for good. it is possible to do good in politics if you are able ethical person, as well as in NGOs / non-profits
I'm a privacy advocate, but I'm 100% okay with on-by-default error collection, as long as the logging is scrubbed of personal data.

Usage analysis is different, and should be opt-in.