skysight-inc/HackerNews huggingface dataset:
I've been traveling extensively for 10 years, over 60 countries and counting. Still haven't ever been in a situation where I needed relatives to send money. I have multiple banks, cards, credits cards, accounts and lawyers who can handle these types of issues for me.

I've also built up a network over the years so I have friends in virtually every major city on the planet. You could literally spin a roulette wheel of cities and drop me into one anywhere on the planet with nothing in my pockets and I'd be fine. People are far more helpful than you realize and of course knowing people helps.

I was completely broke once in one of the most dangerous cities on the planet (San Pedro Sula, Honduras) due to poor planning and a city wide internet outage that took out all ATMs. I also didn't speak any Spanish at the time. This was before I had multiple banks too.

In the end it wasn't really an issue at all, bus driver let me ride for free to the next town and personally escorted me to a safe ATM. Once you've been through things like that a few times you realize most situations just aren't as big a problem as you might think.
I wholeheartedly agree, and came out so disillusioned with the public education system that I'm struggling to decide what the right answer will be for my children.

I understand that many kids are not this way, but I was the type that read physics textbooks while in elementary school. We had a mentorship program that paired kids with someone from two grades above (e.g. 1st graders with 3rd graders). My reading level was always higher than my mentors' and it made me furious (and probably insufferable).

I feel like my entire time in school was spent getting it out of the way so I could study things that genuinely interested me. I would love for my children to not feel that same constraint, but instead feel free to go deeper at their own pace.

I'd recommend this talk by Sir Ken Robinson on this topic generally: https://www.youtube.com/watch?v=zDZFcDGpL4U
> dopamine is heavily involved in motivation and habit formation, which are easily linked to addiction.

You could literally say this about most major neurotransmitters.

Frankly, the fact that the scientific community allows things like the chemical imbalance theory and dopamine addiction theories and other pseudoscience to gain such mainstream acceptance delegitimizes the institution. Scientists should not be defending such statements in the wishy-washy way you did above.
We in Hong Kong are all assuming that TikTok is CCP-owned at this point.
Maybe it should be a prompt to look at DeVos with a fresh mind, instead?

I've heard very little about her actual actions or policies beyond revoking the "Dear Colleague" letter.
If I really needed that I’d use property-based testing. On my phone or I’d code an example. But basically it generates test inputs and gives you confidence by running some number of random tests that verify the property holds or finds a counter example.

More realistic but basic example is to show that a function is its own inverse (reverse reverse list == list) or that one function is the other’s inverse (decode encode plain == plain).
The difference is all professors were once lowly PhD students.
I’ve actually never really seen it taking off in HK, most people here are obsessed with Instagram and Facebook. Kids are mainly playing mobile games or watching Youtube.
I couldn’t find in the article, what exactly is the cycling product and who were their customers? Does it go in cars or on bikes?
As long as there was no attempt to misrepresent the content of the stew then the vegetarians are likely not actually as concerned about their diet as they may have claimed.
>Alternatively, it looks likely that Apple will use their own GPU designs in at least some, if not all, of their ARM Macs.

Apple Removing Support for AMD GPUs in macOS Arm64

https://news.ycombinator.com/item?id=23754055
That division’s revenue is declining YoY, and they are about to incur research costs for the new hardware, and perhaps subsidies. It just seems hard to believe for me that the opportunity cost is there, at least with their approach.
Weird that people keep saying that food delivery can't be profitable when Grubhub has already been profitable and only became unprofitable due to the Doordash/Uber Eats price user acquisition wars. It's the same thing that happened in ride-hailing, which already proved to be profitable.
That's a great idea for an extension.
Nah. Why fixed lane infra? Why foist off on transport agency rather than client-side?
> But in countries where wine is more popular than beer, such as Italy, France, Spain and Greece, bingeing and drinking games are rarer and generally frowned on.

Being from one of these countries I can safely say this is wrong on both counts. As a student I saw how popular drinking games were, and participated in many.

This is only a small part of the article, but it's always a bad feeling when one of the opening lines presents incorrect statements as facts. What else in this article is also completely wrong?

Are readers supposed to actively attempt to trigger the Gell-Mann amnesia effect to be able to enjoy an article?
US says foreign students must leave if classes go fully online
Meaning they lose the visa which they don't need because they aren't in the country?

I suppose there may be some delays in getting a new visa later due to the backlog, but I wouldn't say the danger of such a hassle equates to being forced to return to a country undergoing a pandemic. In fact one big reason we are doing online and hybrid online/in-person courses in the fall is because we expect delays international students getting visas to come/return.
The actual title of the article is "UniFi-Video Products End of Life Announcement". That's very different from this headline. Ubiquiti is very much still in the video business. They're just deprecating the previous generation, which has been a long time coming.
Show HN: See how many people are currently reading the same webpage as you
I was replying specifically to the "best and brightest" comment.
In the life sciences from the people I know in the field, probably 20% of PhDs are considering academic positions. You can do a lot in the private sector with a PhD even well outside of your field, especially if you manage to pick up some data science skills along the way.
I picked it up again!

2 years ago, I was fed and bored with spending my evenings and weekends doing nothing useful, so I built myself an electronics lab and now I’m in there almost every night.

The last few weekends I’ve been trying to reverse engineer and hack the firmware of a 25 year old Tektronix oscilloscope.

It’s a bit of a pointless exercise, and somebody asked me on Twitter “why?”, and the simple reply is “because it’s there.”

But also: I’ve learned to use Ghidra and it’s given me tons of hours of tinkering.
I couldn't tell if this is a joke or for real.

My 2 cents regarding testing. Written tests have 2 goals, 1: help to build your code (you verify your code as you write it). 2: Regression testing (new changes have less chances to break your code).

We as devs need to hand over/deploy a verified code. Without tests this means manual testing, without manual testing means not verified code. Manual testing means slow development process.

It's 2020, I think we have more time writing tests than before with all those cool IDEs, tools, frameworks. No tests means laziness and/or cockiness. Imho of course.
A bit off topic, but what’s her source for Eisenhower dollars? I discovered them by chance at a bank one day but haven’t been able to find them at another bank since, while $2 bills are in stock pretty regularly.
I'm fine with this. No one needs Tiktok and it's sponsored by China. China also brought their popular virus to the world. They can get bent.
"Refactoring" normally refers to changing code's implementation without affecting its external behavior. By definition, refactoring should not mean needing to write new tests.
And why do you assume that this is the sort of problem that can be solved with funding? Maybe we'd be better off with average classes of 60 plus putting students with others matching their skill levels, or some other orthogonal move.

If I'm remembering correctly, school performance by state is basically uncorrelated with spending.
Any large company that has majority ownership in China or primarily employs software developers based in China is a spying apparatus, whether voluntarily or not.

It's not even about intentions. You are subject to the whims of the CCP whether you want to be or not.

No company operates from China without such influence. Some are more blatant than others (Huawei is more obviously a spying apparatus than Zoom).

I wish you the best of luck and hope you are able to get out of HK if you wish.
> “elite science, technology, engineering, and mathematics graduate students (N = 478) identified in 1992. Their educational histories were assessed at age 25 and they were followed up at age 50 using the same psychological assessments.”

One thing to consider is the fact that America during the period 1992 to 2020, has seen a vast societal shift from nerds being seen as social outcasts to being seen as the thing a huge portion of the people at the top of society claim to be.

As a counterpoint, I wonder if the exact same study, when conducted in an anti-intellectual society (say Nazi Germany in the late 1930’s) would still return the same results, or if the people that were “held back” would end up better off psychologically.

I strongly suspect the huge change in how cool it is to be nerdy today is a significant factor in today’s wellbeing.
Spending on the overall “war machine” is split up into a number of buckets, specifically so that people like you can misleadingly point at one of them and say “that’s it, that’s the whole thing”, when in fact the military industrial complex milks taxpayers for well over a trillion each year in total: https://www.thenation.com/article/archive/tom-dispatch-ameri...
> Right now peoples twitter feeds are[0] 49% spam, 49% rage-bait, and 2% legitimate content. If that changes to[1] 99.98% spam, 0.02% rage-bait, and 8.16e-4% legitimate content, most people will probably stop using twitter

That's assuming the spammers can't figure out how to effectively troll the people who came for the rage bait into propagating their spam, but they can, because spammers are Turing-complete.

Obviously the people who came for the legitimate content will be destroyed. Or take up spamming.
I sincerely hope that the author of this article is not employed in a professional software capacity, or at least not in any software I rely on. As someone who was raised in the peak of the Kent Beck test-first philosophy, reading something like this is shocking to me.

Based on the declining quality of everyday software it's not altogether surprising, but it's disturbing to see it written in black and white so brazenly.
Relevant reporting:

Hong Kong security law: Police handed power to do warrantless searches, freeze assets, intercept comms, control internet

https://hongkongfp.com/2020/07/06/breaking-hong-kong-securit...

Note that more details are just being released (and hence newer interpretation of the law, or at least part of it):

“On Monday night, the government gazetted the details of Article 43 of the controverisal legislation”.
In the US spending per student on K-12 education has tripled since 1970. Achievement has been flat[1]. There’s no shortage of money. Practically unlimited education funding has limited effects on results[2]. It’s structural change that’s needed, like acceleration for all.

[1] https://www.cato.org/blog/school-funding-system-not-broken-i...

[2] https://www.cato.org/publications/commentary/americas-most-c...
Their solution before they had bigger/faster devices was to run multiple appliances.

The other pretty big problems are no backup solution, video exports limited to 10 minute clips, cloud account and Internet mandatory (at least for initial setup).
What drives me bonkers is no support for valid SSL certificates because they don't want you to have to worry about that or something. It breaks the protect app when you don't use their snakeoil default.

I'd still be using Unifi Video, but they broke the iOS app for like a whole year so it was use protect or switch over to something that took in RTSP from the cams.
You are proving my point.
Articulating Radar on Cruise Autonomous Vehicles
Regression tests get around a lot of these drawbacks: they cover edge cases that have already been shown to have been overlooked in the past; and they're not unnecessarily brittle or testing things that might legitimately change because they're testing something that we know someone has relied on in the past.

They can still end up platform (or more generally, environment) specific, though.
I agree. This move is only made to create an illusion that they are not working with the gov-who-must-not-be-named.
Can someone give some examples of well-unit-tested open source projects?

It seems like this should be googleable, but all I get when I try to find this is unit test frameworks and blog posts about how to unit test.
you learn run.sh actually works
Imagine assembling a car engine without any QC process, perhaps just visual inspection of the parts. The end users (whoever will drive the car) will be the actual testers.
Will US abolish all other Chinese digital presence including Alibaba etc?
> Ok, so less about the flow and nature of information and more about the semantics.

I'm working on explaining the fundamental nature of information, and arguing that it is fundamentally semantic. I think there's a lot of confusion about what information theory actually tells us. I don't think it actually tells us about the fundamental nature of information. This isn't to detract from its importance, or to say the theory itself is wrong -- I'm saying that the usual interpretation of what it means, regarding information, is flawed.

> Are you familiar with Karl Friston's work on the Free Energy Principle?

Not terribly familiar with it. I watched the video.

I don't think it gets down to the a precise understanding of the fundamentals. I don't think there is a good understanding of the concepts like information and modelling, that it uses. It doesn't seem to provide specific mechanistic explanations of how the phenomena work and how they have their apparent properties.

As a couple of examples, what explanation does it have of how a system may have an understanding of the character of some entity? Where that entity might be something apparently "abstract" or "imaginary"? If the semantics are about mathematical details, what exactly are they about? What are those mathematical details?

But I don't think I can really hope to explain my position here. It requires a lot of explanation, and I'm still working on the explanation.

>> The key to all this is appreciating that, once you see semantics and information processing as a matter of physical processes, you can see that the correct semantics can be necessary for producing a physical outcome.

> I think I understand what you're saying and it touches on some of my own inquiries. A more concrete example, if you have one, might better help align me with where your thoughts are at regarding this.

Imagine a robotic arm that, when a electrical current is sent to it, reaches out and grabs at an area in front of it. If that current happens when there's an object in that position, then the robotic arm will end up picking up the object. If the current happens when there isn't an object in that position, the robotic arm will have picked up nothing. Thus, the semantics of the electrical current has a necessary causal role in the arm picking up the object. And thus we can analyse the causal details to get a concrete understanding of the semantics and its role.
> Overall, they're an excellent investment and the data shows that they work.

Searching, I'm finding mixed results. It seems like some studies show that they have worked in specific situations, whereas others show that they have not worked on other specific situations. I wasn't able to find a comprehensive survey that drew overall conclusions. Are you aware of one?

I'm also finding little research on the impact of a charter school on students of the public schools which they would otherwise have attended.

Are these topics that the book addresses?
I'm not sure I understand what the product is and what it does - it seems more like a technology looking for a market.

Is this a product that end users (car owners) could buy? How would it be integrated with the car? As a driver who doesn't care about cyclists (as those are the ones causing most accidents), would you buy a specific device just for avoiding cyclists?

Is it a product car manufacturers have to integrate in the car? Shouldn't this have a wider target than cyclists? How does it compare to the existing collision avoidance systems? If it's an optional safety system just for detecting cyclists, how do you sell it to the car buyer?
"Ocean" also works
Maybe they pushed another update; does not work for me on iOS.
The development of 1.5 during those years is huge. The difference between interacting with a 16 and 18 year old are night and day in experience and maturity. But I agree with you this would be incredibly difficult to accurately measure differences with a lack of accelerated students and subjective questions/answers.
That's because the DoD pork barrelling rains infinite cash on every state whether red, blue or purple. To vote against it is to vote against free money and jobs for your state.
I was forced to not skip grades, and it took me years to catch up socially afterwards, because everyone was so hostile and school was such an oppressive, totalitarian environment that it made me unable to trust anyone.
>"One method, pioneered by the English scientist Michael Faraday back in 1845,

detects a magnetic field from the way it rotates the polarization direction of light passing through it.

The amount of “Faraday rotation” depends on the strength of the magnetic field and the frequency of the light. So by measuring the polarization at different frequencies, you can infer the strength of magnetism along the line of sight. “If you do it from different places you can make a 3D map,” said Enßlin."
I'll never know for sure, since I can't run the counterfactual. It's certainly possible that the outcome might have been similar if I hadn't been accelerated.

That said, girls tend to mature faster than boys, and I can assure you that most 18 year old females are not very interested romantically in younger males (in that era and place, at least). A year makes a huge difference in that regard. I suspect the study in question didn't account for this.
another perspective would be the education is about more than just cognitive development...
TikTok is managed by Kevin Mayer now, of course he can do this
Not directly related, but I just finished "Half Life: Alyx" yesterday. It is exceptional. I can't believe it is running on the same Rift hardware I bought years ago. They have just figured out how to do so many things correctly in that game. Sorry about the tangent, just can't recommend it enough.
Nearly 100% of the time I've seen "dead" comments, it's because they said something that goes against the grain. This feature is pretty much pure abuse by power users. Same for downvotes.
> I still haven't seen a test that can prove even an identity function is correct.

As with any hypothesis (empirical) testing, software testing is not about proving code is correct, but about striving to falsify that claim by poking at ways it would be likely to fail if it wasn't.

(There are formal analytical methods for proving code correct as opposed to empirical methods of falsifying it, as well, but those aren't tests.)
I cut my teeth on NetBSD and was the OS I learned *NIX on. I deployed many production systems using NetBSD.

A great OS that is very under appreciated, very under represented, and very under respected.
> Like Neeva, Startpage sources search results externally—in its case, directly from Google. Unlike Neeva, Startpage still shows Google ads and collects a cut of the proceeds

anyone know how this works? can any startup just proxy Google like that, or do you need to be some sort of official search partner of Google? just curious bc I have often wondered if I myself could attempt a modified search system as a side project.
The first cons pair is passed by value though, not by reference.
Meh. I skipped 7th grade, after being in the youngest cohort in my class already (birthday in July). I've done fine I guess - went to MIT, did some startups, got paid plenty of money, and I'm pretty happy today (COVID transient aside).

I thought it was cool at the time, and I was in a hurry to get out of high school, get to college, and get on with my life, so I certainly didn't object when my parents and teachers suggested it.

But looking back, it was weird. I couldn't drive until almost the end of high school. Couldn't legally drink until I had already graduated college. And while the adults at the time thought I was emotionally mature for my age - one teacher memorably called me an "old soul" - the truth is I was just a smart kid who didn't cause trouble. In retrospect, I still had a lot of growing up to do, and I wish I had the time to do a little bit more of it before entering college and having to make decisions that really mattered.
Nah, pass.

Before joining the Trump administration, [DeVos]...had a strong hand in the spread of for-profit charter schools in her home state of Michigan, which saw a dramatic drop in average school performances after her pet policies were enacted. As secretary of education, she's consistently sidelined student civil rights and worked to make debt relief harder than ever.

https://www.gq.com/story/betsy-devos-is-the-worst

Even Trump overruled her on plans to gut the Special Olympics

https://www.theguardian.com/us-news/2019/dec/27/betsy-devos-...

in response to a question about whether guns belonged in schools, she referred to a school in Wyoming and said, “I would imagine that there is probably a gun in the schools to protect from potential grizzlies.”

DeVos was confirmed by the Senate — but only, for the first time in U.S. history, after a vice president had to vote to break a tie.

https://www.washingtonpost.com/education/2019/10/25/betsy-de...
New Stripe Pricing
Dealing with garbage tech is what brings me down. Completely broken, unusable garbage software is everywhere, backed by egos, emotions, power plays, and entrenchment. That's the part I don't want to deal with. The only thing worse than having to deal with a bunch of idiots is having to deal with a bunch of things made by them. It pisses me off how broken everything is and how few people seem to take issue with it.

Everything is like this. Sturgeon's law is everywhere.

Once I can somehow push those things out of my life, I'm good.
ByteDance has a different version of TikTok (called Douyin) for the Chinese market, which complies with their censorship restrictions. My guess is they pulled TikTok out of HK to replace it with Douyin.
With the ban in India and threat of US ban, this move may be a PR move to say to the US Feds, "No, we're not a CCP tool. We've pulled out of the HK market to avoid data sharing with the CCP!" Essentially sacrificing the already low HK market to keep the much bigger Rest of the World market.

Of course, no one in tech believes them. We'll see if the public and governments believe them.
The physical threat ranges of electrocution and explosions vastly differ.
2 other figures to consider in your analysis (since 1970):

- Total US inflation rate: ~550%

- US Population growth: ~60%

This suggests education spending, per child, is roughly 1/3 what it was in the 1970 (or so my late night napkin math says)
Have you considered this is a problem that's pretty specific to you and what while your experience might suck. It also sucks for kids who can't read well, period.

I think while schooling is far from ideal, most kids aren't reading physics books in elementary school. Many kids are struggling to cope on several different fronts.