skysight-inc/HackerNews huggingface dataset:
It ultimately depends on the level of abstraction ("emulating a CPU" is ambiguous): emulating the logical gates of a CPU is an entirely different matter from emulating the instruction set; besides, generally one emulates an entire system, not just the CPU.

If you're looking for the former, the canonical course is "NAND2Tetris". If you take the class on Coursera, the first (of two parts) covers the hardware.

I've also seen two very interesting books, but I haven't read them - "The ZX Spectrum Ula: How to Design a Microcomputer", and "Designing Video Game Hardware in Verilog".

Courses at this level are generally exactly defined.

In the second case - emulating at the ISA level, the canonical entry is to emulate a CHIP-8, since it's simple and relatively well defined.

At this level, targets are rarely exactly defined. CHIP-8 for example is well-defined in theory, however, for example, looking at the Wikipedia page won't suffice, because there are many extensions. Additionally, CHIP-8 has no standard clock speed. But it's easy to find the resources, and you can end with an exactly working system (the same can't be easily say, for example, of a NES or a C64 - you'll find conflicting information).
React Internals (Part 1) – The Basics Concepts and the Prerequisites
Show HN: Online music player for iTunes music samples
As a Japan resident and expat from a small south pacific nation you may of heard of recently, I don't find Japanese "baseline execution quality" to be categorically better. There are a lot of places where it is worse.

> Buses and trains are better (and more punctual);
Japan's public transport is great.(where there is money)

> low-end food is tastier;
50/50 on this. Maybe gyudon or kaiten-zushi are tasty, but a lot of the low end food is over processed, over packaged, over sweetened, uninspired imitations of food, factory made, prepared by low wage workers, with all the challenging and exciting bits take out.

> cheap hotels are more comfortable;
you even get complimentary right wing nationalist literature in the bedside table.. but This is probably true.

> streets are cleaner;
People just throw things where no one can see, when no one is looking. They neatly tie up their convenience store rubbish in its plastic bag, and throw it into a stream. dump their fireworks and BBQS on the beach, fluorescent lightbulbs in the forest,

> grocery stores and corner stores are nicer;
Every thing comes in sooo much plastic, and the selection is very limited. Corner stores are all franchises of a few big players, who don't share much profit with local owners or suppliers. sure Fami-chikin is tasty, if you don't think about where it came from.

> ostensibly unremarkable villages have more beautiful buildings and are more pleasant places to spend a few days.;

Sure they are nice to "spend a few days". But a village is supposed to be the centre peoples lives. These nice villages with cool old buildings are emptying out fast and becoming abandoned along with the rural way of life because of the lack of immigrations and the economy being so centralised on Tokyo.

It strikes me that all the writer's points are very much about what appeals to a middle class visitor. Is this a good metric to judge a society by?
This case it's fine. There is a due process. Hard evidence is brought forth, court ruled in according to law. Where is the due process for handing the sentencing that prevents tiktok from transaction with US persons in the first EO. White House also gets to define transaction as whatever they want. Salary to US employees? App store listing? Ad transaction? White House can play tiktok however they please.
I think it's simply that they didn't need that use case, so didn't build for it.
"You know all the data we give you from every person on the planet? TikTok does the same for China."

That probably scared them a bit.
Transparent Eyeball
Right; but for PATH this treatment of empty entries is mostly harmless, because the variable is normally non-empty.
Lovely list. As for real estate and housing prices: interest rates are ridiculously low, once you account for that the price increase from the 1970's to today makes really good sense. Corrected for inflation it is now much cheaper to own rather than to rent real estate even though the sticker price of the houses went up.

Rents then predictably increased because houses/apartments that got bought reduced the supply available for renting out. Especially in the bigger cities where the economy is a bit better rents have skyrocketed.

But the cost of owning a house as a function of take home pay has dropped. The same house that cost my parents a ridiculously high mortgage (10% was pretty normal in the 70's here) can now be had for a fraction of the inflation adjusted wages today. Even though the on-paper value of the house is roughly 10x what it cost back then.

To fix the rental market a lot of new housing would have to be built, but then you run into zoning issues, transportation issues, the price of land and other limitations that make it hard to expand affordable housing for cities. Historically institutional investors (for instance: pension funds) would fund these developments but since they now have shorter time horizons for their ROI and want higher returns they are not as interested as they used to be to pick this up.

This problem will not resolve easily or even at all as long as people are willing to pay high rents and the market is as restricted as it is I would expect rents to continue to go up. Even an increase in interest will likely not return all that many houses to the rental market because that would require the sticker price of houses to come down, which hardly even happens. Even in the 2009 financial crises housing prices reacted only in a limited way: people had bought in at a certain price level and could not let go of their properties without ending up with a debt to the bank, a situation best avoided.
That's true. There is always a tendency to fight the last war, especially when it comes to bureaucrats. That said, of all of the things that could really knock us out, I'd still put viruses among the smaller threats.

Societies that are able to accurately assess risk and their ability and cost/benefit to mitigate it will tend to outperform societies that don't.
Seeing as all these terrible economic outcomes would happen whether or not the virus infected the population, I think this is a pretty solid win and a poor article title.
My first take was that they did look like nuclear power plant silos. But then I examined closer and the idea started to appeal to me more.

I think these might work in Detroit. The city has lots of vacant land. These towers are wider at the bottom. Why not have shops and offices on the lower floors? The upper floors would offer great views of the Detroit river into Windsor or out to the suburbs. By staggering the rows everyone would have a great view.

You'd be within walking distance of shops in the other towers, it would be village-like with a lot of green space. In effect you'd have a set of towers in the middle of a park.
Nitrogen also makes up 2.6% of the Martian atmosphere and Nitrogen gas will likely be an important feedstock for future Martian ISRU plans.
New York Times Sunday Front Page with Minimal Art, August 23, 2020
The cost of lending and reselling a book is explicitly part of the initial remuneration.

Books deteriorate, and a normal book can only be lent or resold so often. A paperback read by one reader is usually in a good condition (but obviously 'read'), a paperback read by twenty readers (who took it along on travels, dropped it, put it on dirty surfaces, etc.) will be near the end of its life. Hard-cover library books can take more of a beating, but are read by more people and get damaged nonetheless. The average lifespan of a popular library book is short.

If books didn't deteriorate authors and publishers wouldn't make any money from second-hand or library books, but as it is, they do. Any time you read a book, it gets closer to being taken out of circulation. Any time you purchase a book and keep it, you take it out of circulation for years, decades even. That all drives the need for new editions of that book. This is no different from second-hand cars or bicycles.
I would add, at what volume will it be produced? Prices can only go down if volume is high.

Also memory speed (both Hz and cache structure) is much more of a bottleneck than CPU clock. Specially with 16 cores!

2 Gflops/watt is the peak of electric transistor CPUs, if they come close to that; with a volume close to Raspberry 4 and use DDR4 memory with ample cache they might have a shoot at server cluster competition.

They will need many years of improving the software stack though, so they have a long uphill battle waiting.

The trick and fallacy of these days of non improving electronics is to aim for the stars (12nm of what) to get that last market share before saturation.

After that planned obsolescence and fragile 5-7nm chips will flood the market. Finally the chips will probably be manufactured for peak performance and longevity but they wont be sold, only rented!

About cooling, the right heatsink is the solution: I found these for my Raspberry 4's, AFAIK they are the most compact stackable passive cooling for peak 2Gflops/watt under 10 watts in existence: http://move.rupy.se/file/pi_4.jpg
> Perhaps because you have to have a Medium account to read the article?

I'm anti-Nuclear (On Earth), but would prefer most people read it before commenting on it. So, I archived it.

http://archive.vn/OmALl
> On the one hand, "chaos engineering" seem a bit like "we don't understand our architecture well enough to know what its failure modes are, [...]

That approach seems like a good idea, even if you think you know what the failure modes are.
More fear porn from the Beeb. Please don’t post this noise on HN.
I was working on such project recently and a plain `TODO.md` file worked great. I was maintaining a list of tasks/topics/problems/questions/bug reports/feedback. Interestingly the TODO section was growing as fast as the DONE.

I think it's important to keep the DONE section, it can be very motivating to see this pile of work that is already done!
IBM 5160
There are no miracles in engineering.
mpv was the latest victim: https://github.com/mpv-player/mpv/commit/cce7062a8a6b6a3b
When I visited the Pacific North-West in 2015 (I herald from Italy), I made a point of visiting Powell’s Bookstore in Portland (OR) and even chose my hotel (which turned out to be the very hip Ace Hotel) based on proximity to it.

I pointedly decided to buy second-hand copies of several of my favourite books (The Computational Beauty of Nature by Gary William Flake and Surfaces & Essences by Douglas Hofstadter & Emmanuel Sander) from them, despite the absurd logistical hassle of buying them and transcontinentally shipping them home because I wanted storied copies with no pristine air to them.
Original commenter should have written:

> Just remember anything you purchase on Amazon Prime, you don't practically own it.
Dedicating a healthy part of your time to having fun is not a waste of time.
Looks like that as of 7.4 it supports multiple workers for concurrent request handling.
Never thought I’d see anti-article sentiment on HN, and more generally, not sure what sort of response you expect to generate. Why comment at all?

To avoid more of the same, I’ll say that the article itself is pretty detailed, but whereas Netflix blog-posts are more general, this one feels hyper-specific. That’s great if you’re tied to aws, but I think the former has longer-lasting + further-reaching utility.

Hope they do more.
Isn't it exactly the same for a song or movie you purchased from Amazon and downloaded to your hard drive?
Yes, I agree, nudity is not always over sexualized, and I too, recognize the problem is sexualization.
My first instinct was to agree with this, but from my experience it's extremely difficult to properly communicate failure modes 100% of the time across different teams in very large organizations. Dependencies that are fuzzy arise for example when a service A proxies data for client service B from some other service C. It doesn't help that the organization of teams in a company often severs lines of communication between teams who explicitly don't have dependencies but implicitly do. As a result, information gets lost in the process. Having a last line of defense in the form of a "chaos engineering" team may actually be the natural response of large organizations to counter the inherent messiness that is produced as a result of bureaucracy.
The same is true for operating systems and programming languages. It‘s not the best ones that win. Economics is the most important factor.
As I understand a "time series" is created for both x und y coordinates, then these are fourier transformed for the spectral components. Then when redrawing, only the real parts are used.

Is it necessary to do it for x and y separated? Couldn't you just take x for the real part and y for the imaginary part of the time series and do the Fourier transform on that?

edit: monday morning typos.
Yes! Thank you! How did you find it? My google-fu failed me this time.
Utter nonsense. Table tennis also requires absolute silence from spectators and the players, and is in no form whatsoever related to the arguments brought up here: excentric, elitist, aristocratic old-sport.

The reason is very simple instead: you need absolute concentration, very similar to coding. Any disturbance is critical. If you disturb your opponent by saying something during a rally, or sighing loudly it's an official fault. Either replay or a point.

There do exist a ride range of sports which do not need that much player concentration, such as basketball, football, baseball, rugby, but you cannot compare that to tennis or even table tennis or chess.
I don't have experience with non-alphabetic writing systems, but I was under impression that for simple written communication nowadays plain text is good enough for every language supported by Unicode. I've heard e.g. about Han unification, but is it bad enough even for non-linguistic purposes?

Which features, in your opinion, are required for decent non-alphabetic language compatibility on top of plain Unicode text?
A.out
Sounds super easy
We tried a similar chaos tool in our company built in-house. Simulated most of the scenarios mentioned here using SSM/other scripts. At first everyone was interested and after some time the interest faded. Our problem was lack of visualization across the app ecosystem i.e how will it impact the app ecosystem when a batch of ec2 instances are suddenly spiking on CPU and what will be the impact to end user.

Turns out people care only if there is an end user impact and doesn't really care about random anomalies.

And to build the capabilities required for measuring the impact + automating the workflow of the actual chaos tests is a lot of work
I think it's referring to a stereotype that police officers are not the brightest, therefore insulting the poster by bringing their intelligence into question.
Most of the terrible economic outcomes have been due to the lockdowns not the actual deaths. Losing 1% of the population isn't a massive economic blow when that 1% is predominantly composed of no and low income groups, it is however a moral blow. The difference is important however because, while early on total lock-downs made sense, the reality is that if only 1% of the population is at risk of death then the other 99% should be working to minimize the cost of supporting the most vulnerable in countries where a full viral suppression is unlikely.
Ah thank you. And I presume the qemu part is optional, used only when the target platform is non x86?
It is the opposite really - opinions are some of the least controlled they have ever been as reach is far equalized and means of control at a low. It is one of the least conquered times.

Hell the idea that they can even 'control the attention' is a fallacy that assumes they have active knowledge of what their content will do like the New York Times has an editorial control. It is like the idiot congresspeople who spent their question time complaining about their negative search results for their name.

Even the heaviest handed management would fail to exercise the level of control as an editor of a scientific journal who knows absolutely nothing about the underlying field.
The Commander X16 is the brain-child of 8-bit-guy[1] on YouTube who does tons of fairly good retro videos. He's roped other people in to get it built though.

---

[1] https://www.youtube.com/user/adric22
How to run JMeter test plan via Docker
A Tech Star Blackmailed
It's not really industry that failed here but rather the government that imposed a tax for a service that was never rendered and whose revenues were later squandered.
Likewise, I find understanding why Switzerland is so successful very interesting – especially as it differs dramatically in approach from the other countries in Europe held up as successful and happy societies (the more northerly Nordic countries).

I can’t give a full explanation, but there are a couple of unique aspects of Switzerland that I believe may influence the situation heavily:

1. A strong aspect of Swiss culture is to expect responsibility and interest in the affairs of Switzerland from its citizens. This is reflected, for example, in the very strict rules and tests implemented for foreigners wishing to assume Swiss citizenship, which include a wide variety of questions on the history and current affairs.

2. Allied to this, they have implemented probably the most direct form of democracy I’m aware of in the world. The country is divided into a number of cantons (roughly equivalent to American states) which are largely self governing and self determining, including (for example) setting dramatically different rates of taxation. Further, many issues are decided by way of referendum: votes take place relatively frequently. Lastly, in theory any citizen can generate a new law: a series of votes would be taken on a new suggestion, first at a local level, then at a cantonal level, and then potentially at the national level.

Economically though one aspect I don’t understand is how Switzerland can support such high salaries and high costs of living, in contrast to other countries. (What came first: the high cost of living, or the high salaries?) And therefore with it being an acknowledged expensive place for businesses to operate (in terms of salary costs) why do multinational businesses choose to open or continue operations there, in contrast to other more affordable locations? (Also noting that there is significant skilled inward migration, to support the needs of some of those large businesses.)
I'm willing to accept a mediocre UI that doesn't start auto playing every video I hover over for more than a second.
How to check if an element exists in jQuery?
My thought is that if fascist government takes over, Minnesota at first would be something like Hong Kong. It is not like social scoring could/would happen overnight. At first you would need a lot of people to believe in it, a lot of people to support it and etc.

I understand that things would not so simple of course.

My main message is that technology is only a tool, it is still people, society doing the act.
I fear that by dropping high frequency components, the result becomes visually unappealing (such as lines being parallel in the original becoming extremely wiggly and non-parallel).

Maybe OP can make an example with high frequencies removed?
Right, if Palau's borders opened, there wouldn't necessarily be cruise ships showing up there.
It sounds like complaining to me
210k new China AI startups this year (Asia AI News)
Yeah, I'm not blowing $1k+ on something I don't need. I also don't expect the same quality to be found in a $1.5k scooter as a $15k vehicle which needs to meet a different set of testing requirements. I don't know if you've noticed, but most modern goods are engineered to be exactly as good as they need to be and no better. I don't expect I would want to keep a 1st gen EV from China or Tesla beyond the initial life of the battery pack anyway.

Aren't batteries mostly purchased from large battery mfgs now? Tesla doesn't quite make their own batteries, they partner with battery manufacturers. Because the battery pack is a major safety item, there's only so low China can go before they make something that won't get to market.

You like top quality stuff and that's great. I don't care. I'm happy to save money and buy something that is as good as I need it to be.
Hmm.

I think as soon as we get a vaccine, or even just a test that will tell you if you will end up in ICU or not, 95% of people will head back to the office.

Even among the people who at first found WFH a huge productivity gain, I've noticed a recent trend of people fatiguing of it. The initial boon to concentration (assuming you have a quiet home which not everyone does) and not having to commute etc was great, but it seems like for a lot of people it is starting to wear a bit thin now.

Pre-lockdown I used to work from home quite frequently and would happily put up with video calls, but I am growing to hate WFH now. Video meetings are increasingly grating due to their latency and people's patchy wifi. Ad-hoc informal collaboration/chats are down to zero - everything now has to be formally scheduled and arranged vs when you'd just bump into someone in the corridor/getting coffee etc. Getting a feel for what the team is working on is hard, even with regular stand-ups etc there is no "overhearing" people talking about stuff around you.

Personally I do not have the space for a dedicated office set up where I live - I have a desk in the corner of my living room which is the same room that the rest of my family use while I am trying to work. I do not like the idea that I will have that there forever now - if my job wants me to work from my house forever, they can increase my salary 200% so I can stand a chance of buying somewhere in/around London with space for an office.

As soon as we have a vaccine, or a test to know if I will end up in ICU vs being asymptomatic, or there is just some pill you can take if you test positive that means you get a bad fever and not a near-death coma etc, I will be right back there in the office a usual no questions asked.
> Hint: The major Wayland devs are former Xorg devs.

But notably, major Xorg developer Keith Packard is missing from that list.
Microsoft releases declaration in support of Epic Games
No one purchases movies or TV shows on prime. The point of the purchase price is to make the rent price seem cheaper.