skysight-inc/HackerNews huggingface dataset:
Collision detection in the original Ethernet really hurt throughput, because you had to send the entire message before you detected a collision. Once hardware detection went in, collisions were detected as soon as what the transmitter was sending didn't match what the receiver was receiving. Transmission was immediately terminated, rather than sending a full packet. Which also meant the random backoff could start with a smaller value. Also, the hardware would check for a quiet period before even starting to send, so once a packet got through the sync-up sequence, nobody else on the cable would start sending until the cable went quiet again. This pretty much solved the collision detection problem. This is what "CSMA/CD" is at the hardware level.

Except for a screwup by a vendor.

It was observed in the early 1980s that Ethernet throughput under load was lower than theory predicted, but no one knew why. Someone at PARC tried to find out. (I can't remember who it was, but there's a paper on this somewhere.) They found out that something was generating spikes during the "quiet time", resetting the quiet time timer (a low level hardware component), and preventing everyone on the cable from sending for a while. But they couldn't find out what device was doing it. All devices seemed to be doing it.
They got a dual-channel digital oscilloscope with enough memory to store an entire packet from LeCroy. Today even low-end scopes can do this, but it was a rare and expensive piece of hardware back then. They got both ends of the PARC coax backbone into their office, and could see the signals on the cable from both ends. I was invited up to look at the scope, and there was that stupid spike, in the middle of quiet time. At a different place on the traces from both ends of the cable, indicating it wasn't coming from the sender of the packet. From speed of light lag, they could then locate the source.

It turned out that a manufacturer of Ethernet interface parts had made a mistake in the hardware state machine that controlled the transmitter. There was a state change during the quiet time which turned on the transmitter for a nanosecond or so between states. This put a spike on the cable during the quiet time. That forced the interface to back off. The effect was that back to back packets, intended to maximize throughput, never worked.

The unit that was doing this didn't have to be sending. It did this just connected to the cable when powered up. Several of that vendor's interfaces were on the cable, and as long as any of them had power, throughput suffered badly.

This is the source of the early 1980s claim that CSMA/CD didn't work. A lot of interface boards had to be replaced.
IIRC, the fuel cells wear out and better technologies are more expensive to produce.

My mom lives in Paradise and she would've bought a FC generator with an ATS if such a mythical creature were affordable and lasted at least as long as a natural gas generator.

It seems like more work needs to be done to produce FC cells that last far longer even if they're physically larger. (Holy Grail / Easier said than done.)

PS: Xfinity (Comcast) goes out within the first 24 hours while cell phone service remains powered in a PSPS. In a real outage, cell phone service lasts some number of hours or a few days. There hasn't been such an event because PG&E has a large basecamp with worker housing and equipment half-way between Paradise and Chico on Skyway.
The problem is that people overestimate how funny their jokes are, and that sort of internet humor grows like kudzu.

Particularly non-obvious witticisms do well on HN. They're just rare.

https://hn.algolia.com/?query=%227609289%22&dateRange=all&pa...
Show HN: A platform for the longest-lasting products in the world
Bayesian statistics is one approach to modelling fuzziness and uncertainty, but fuzzy logic explores other approaches. For example, see https://en.wikipedia.org/wiki/Possibility_theory

Also fuzzy logic builds a "traditional" logical framework for deduction on terms, again this is a bit different from Bayesian approach, which is more abductive reasoning.
That is about a different claim, related to efforts by the US to help developing countries respond to pandemics.

He absolutely did dump everyone in the pandemic command chain in NSC/DHS, and then not replace them. https://www.snopes.com/fact-check/trump-fire-pandemic-team/

When recently asked about this and his proposals to defund the CDC by the press, he said in response “I’m a businessperson. I don’t like having thousands of people around when you don’t need them. When we need them, we can get them back very quickly.”
Awesome! I love reading the covid news (I live in Seattle), and this is a cool way to make both parties happy.
> Real-time chat is the most obvious case where the html purist won’t offer an acceptable experience.

???

<pre>If you have any questions:

Phone: <b>0123456789</b> <a href="tel:+18123456789">[call me]</a>
whatsapp: <b>0123456789</b> <a href="https://wa.me/0123456789?text=I'm%20interested">[message me]</a>
facebook: <b>html.purist</b> <a href="https://www.facebook.com/messages/t/html.purist/">[message me]</a>
</pre>

https://jsfiddle.net/r3u5yvk8/

I'm now on their contact list.
Where would someone find such references? Is a closely guarded secret. Most of the evidence is circumstantial. It's not in the US interest or in the proxy dictator interest to disclose such information.
I used to pay for a digital-only subscription to the San Jose Mercury News. Then one day, some ad (or combination thereof) appeared that caused the text to shift every second: On odd-numbered seconds, the text would reflow slightly; on even-numbered seconds, the content would return to ‘normal’.

This behavior made the page effectively unreadable. Reader modes didn’t exist for me at the time (or I just wasn’t aware of them). Reloading would sometimes fix the issue; sometimes not.

The issue began to occur once in every five articles viewed, and I gave up: When my subscription came up for renewal, I threw the notice away.
Is the underlying concept related to 'By analyzing proteins in the blood, one can estimate a person's biological age, as well as weight, height, and hip circumference, mentioned in this article ?

https://www.dailymail.co.uk/sciencetech/article-3349739/Woul...
Join effort how? I have finished my project, it is complete.

I have looked at your project, and it looks like you have bundled events implementation with something else entirely. An event library should probably stand alone in this ;) However, my implementation is a bit more advanced.

If you are interested in using sub-events, and have questions - feel free to ask me on GitHub! ;)
methylation information by sequencing the DNA in the blood is good enough to predict age
This has introduced credit risk to impacted businesses as well. Credit risk means we could see less liquid debt markets which could decrease employment, investment, and long run GDP growth. All of this especially concerning given that the fed has only 1 - 2 more pulls at monetary supply via interest rates before they have to introduce more QE.

There are too many connections here to simply discount the long-run risk to the economy which is why you're seeing a sell off.

PwC's audit lead gave a great interview on Bloomberg the other day that I thought summed this situation up well. Paraphrased: Those that have been fixing their roof while the sun is shining are going to be just fine, but a lot of businesses didn't do that.

Businesses with high leverage, unsteady cash flows, flaky customers, and inefficient cost structures could be in trouble here.

I'm a buyer in this market, but I'm a buyer precisely because I have a long horizon. There's no guarantee that we get back up to these rich valuations any time soon.
> I have personally found their original content to be 90% mediocre

Don't take this the wrong way, but I don't think personal preference is really an indicator of the success of a company. Especially not one as influential or 'cultural' as Netflix.

It's like when people on Hackernews claim that Google is going downhill and will be 'dead' soon just because they don't like their search results.
This feels like a response from a seasoned backend engineer. Seasoned frontend developers value user experience and design — thus the tendency to go "back to static" and rarely back to WordPress.
A Git Murder Mystery
The last couple paragraphs seem like a bit of non-sequitur compared to the rest of the article. The piece essentially is describing a company that has been operating with losses for years, with liabilities in the billions, that is being target by regulatory agencies for failure to clean up their hazardous tech at the end of its lifecycle, as its CEO makes false statements to investors and the press, while its core technology is being overtaken in many markets by renewables like wind and solar. Not many of those are typically considered positive or hopeful in quality.

Yet despite that (and even with the "if there's a silver lining [...]" caveat), ending the piece on what feels like a hopeful, positive note by the CEO founder talking about how he feels "like [he] has made a dent" just seems like a weird way to go. It seems like there's a reasonable chance that, well, he didn't. That the company hasn't built a sustainable model, and pulled otherwise productive capital, talent, and time into a venture that arguably has not in the last 12 years, and may not in the future, actually make any sort of a dent.

While based on this one article, I wouldn't be bullish on Bloom's future, I'm mostly just commenting on that decision in the writing of the piece. To my mind, it fits oddly with the rest of the structure.
1) Plenty of funds have protected losses and even made gains with this market move. Buying puts as insurance, especially as volatility climbs, is standard operating procedure.

2) Hedge funds aren't open to the public and don't care about popularity. Their mandate is to limit volatility, not to maximize gains. That's why they might not match indexes in bull markets but outearn them in turbulent times.

3) There is an inflection point with capital where it gets much harder to make more because of changes in liquidity, transparency, and price action resulting from your moves. Independent traders can make 100% gains from large moves, a large fund could never do that unless it was an absolute perfect scenario.

4) I'm surprised that so many people find it hard to believe that months of constant negative news after 10 years of perfect bull run and frothy all-time highs does not signal a hint of a downturn. What more of a sign do you need? Nuclear war?

5) Ray Dalio did it in November 2019, and even made it clear that it was standard hedging: https://markets.businessinsider.com/news/stocks/ray-dalio-br...
> If you work with 100% cache misses, your mem will still be working at effective frequency of around 100 to 200Mhz

I think you mean 20MHz. Current DRAM is abysmal at random access.
Can any publication serve as prior art? Can I use a personal blog or do I need a certain type of publication?
I know of people who have sent copies of their work in the mail to themselves to prove prior art.
Given that they were tasked to contribute to a very popular open source project, the author may have been able to get past their perceptions of mismanagement at Pivotal. But part of their complaint seems to be that they were not able to contribute as much as they wanted. Different people adapt to such a situation in different ways.
This is not about PFS for transmitted data, only for client identity. Unless I'm missing something, an attacker will not be able to decrypt past traffic if they manage to obtain the private key, but they will know the public key of whoever sent it.

In most cases this is a non-issue, but it can matter of you're trying to hide your identity behind a VPN.
Upon reading again, you are correct. Well-written satire.
price is not the same thing as trading volume.
Show HN: Jsonbox.io V2 – Free HTTP-based JSON storage with private box
> Real-time chat is the most obvious case where the html purist won’t offer an acceptable experience.

The retro approach is to have two frames. One to submit, one to slow-stream a bunch of html elements which we can thankfully now lay out via flexboxes which are highly efficient when it comes to relayout, i.e. only the appended elements would incur some runtime costs, the already rendered ones don't get recomputed.

I have seen chan-style imageboards that update posts as people type (every dozen milliseconds) with 10k posts in a thread. The layout recomputation overhead is really low.
> This was so underwhelming to the first LA crew that they didn't even bother to inform the next crew about it, or even have the plane taken out of service and fixed.

The pilots were from the cultures where deference to authority, specifically, failure to even talk about the problem to those "above in the hierarchy" provably previously caused other airplane accidents. The crews since learned to function in the cockpit. But this required such an attitude outside of the cockpit for those who managed respond, "sticking their necks out" from their point of view, so they avoided it. Again, nothing to use as the proof that the plane was not utterly dangerous.
Luckily, we have an entire agency dedicated to pandemics - CDC and the article I linked assures that CDC has not been defunded.
That’s why I said “few”, not “one”?
Well I guess I agree with this statement, except that I don't think K is primarily used for solving toy problems.
You don't have to do it constantly, and it would only lower your gains, not cause you to lose money unless you're over insuring.

All-time highs, inflated money supply, dropping interest rates, trade wars, overbought stocks, overloaded repo markets, bond yield inflection, and more signs over the last few months are a pretty clear signal to engage in hedging.
The irony of claiming to represent a readable language, that others are in denial of reality about this, and presenting your thesis on a '90s looking website with typographic lines spanning almost 400 chars at 100% width...

ABTASTTSBMR than the whole sentence. OK.
+1 that Why matters most.

My teammate recently wrote a blog post on how we document Why in git commits and PR descriptions.

https://medium.com/better-programming/daily-habits-to-turn-y...

Would also recommend checking out a related talk by a tech lead at StitchFix: https://confreaks.tv/videos/rubyconf2018-documentation-trade...
Vol = volatility, not volume.
Pots chops the frequency off below 300hz and above 3300hz. The simulation should be almost perfect - but it doesn't play.
Some people find entertaining from these extremely compact syntax languages. I have hard time to understand them, but such is life.
9/10 times when I see a "compiler" on GitHub, it's just an interpreter, or the compilation phase is completely missing.

In this case I believe the "compiler" is an "ast printer".
How to Show Confirmation Alerts with OK and Cancel Buttons Using Swift 5?
Given SARS-CoV-2 is changing the entire world and directly affecting our lives now and in the future, and we can directly make simple -> complex changes to improve our personal lives with the correct information I think it's ironic HN can't coherently work towards the truth.

But it does beg the question, since it can't with SARS-CoV-2, can HN work towards the truth with anything?
Is this C in Russia?
Except in K all the idioms are laid flat. As pointed out in the article, the K code is the equivalent of range(100).reduce(operator.add), it encapsulates the entire meaning, there is no need for an intermediate function definition because that would be longer than the code itself.
The article's point is a meta-point. Congratulations on actually being part of the meme in the article.
> America became number one (nuanced but I want to avoid another essay) through embracing multi-culturalism, liberty, and being one of the few places that weren't damaged much in WW2 with a nod towards their role in post ww1 decision making as well.

The first part is really amusing. America become rich because while Europe was fighting world wars, US was making money on them. US joined WW2 by the very end when it was evident that Germany lost, and arrived just in time to colonize its share of Europe that remains colonized to this day.

Also the fact that US dollar is the world's exchange currency also benefits US immensely. US can print astronomical amounts of money and the whole world becomes poorer with each printed bill. No other country in the world has the same position. If Iran would be in the same position, they would be just as rich without all the "multi-cultural" "liberty" fluff.
I would prefer something simple too. Solving hard problems is fine, but I tend to prefer simple infrastructure vs „resume driven“ tech.

Mobile apps is something that I thought about too, the ease of distribution seems like a big win, but isn’t it hard to sell on these platform nowadays because they get flooded with x numbers of apps every day?
My favorite quote from Klee:
"Art does not reproduce the visible but makes visible."

His shorter Pedagogical Sketchbook is also worth a read.
Maybe I should've said a "screen" instead of a "page" (if you have two files open side-by-side and they both fit on your screen it's the same benefit). And I admit it is slightly hyperbolic (to make a point about the virtues of being able to see a significant portion of your project at once). Large projects will be more than one screen of code, although perhaps surprisingly few. (This actually influences how I organize code, in that the "screen" becomes a logical unit, and I try to keep the API surface of each screen really small.) I'm working on a programming language project to try to get even denser.

>Good luck fitting an operating system, web browser or air traffic control system into a page of code.

Aaron Hsu's co-dfns compiler (optimizing compiler for a subset of APL to the GPU) is 3 screens https://github.com/Co-dfns/Co-dfns/tree/master/cmp (I can fit the entire codebase on my three monitors).

This K text editor is way less than one screen https://kparc.com/edit.k (Funny you should mention OS. I'm eager to see how many pages kOS is. AW notoriously hates scrolling.)

Web browsers are a lost cause, I'll give you that one.
Why is this downvoted? I'm a big fan of PHP, but I feel something like Netlify CMS + Jekyll on Netlify is appropriate for this. It would be super fast (statically generated and on Netlify CDN) and secure (no database or app scripts) and includes an editing interface.

With WordPress I don't worry about the PHP part, but for the tendency of people to bloat it by installing plugins and not updating it enough.
dupe

https://news.ycombinator.com/item?id=22521099
Setback for ride-hailing Korean startup as Parliament passes controversial bill
I‘m from the EU and don’t earn a lot of money, so no wealth here which I could invest.

But I would love to be able to earn enough to live (simple, I don’t need a luxury life) while saving the rest to become financial independent at some point.
Ask HN: What would you do if you knew you could not fail?
Popular question to ask. I’d start a startup to measure bias in speech/text.
Ask HN: Finding videos of people practicing programming Golang
I find that I've learned a ton from just watching some coworkers programming and using a computer, since I can learn from the tools they use.

I would like to be able to study how really good programmers, especially for golang which I am starting to learn, program. But many videos are "demos" which show artificial development environments instead of the practice of programming and debugging.

I am looking for the equivalent of "looking over the shoulder" watching another person program in Golang, but I haven't been able to find this. Is there a resource for this kind of material online?

Thank you
Yeah if you actually want to sort datasets of any meaningful size, you’ll be making requests to return database results anyway since a database is going to be infinitely faster and more comprehensive than any client side solution.
I think uninterested voters who say it are indeed thinking of the parties habits of acting for and on behalf of proprietary interests. Their complaints don't follow up with policy statements but with complaints about handing out favors to their mates.

I think that at a state level you get substantially different programs, but public and commercial journalists basically act like covering state politics is an unreasonable attack on their credibility, so it's quite true that state politicians act corruptly.
CDC Coronavirus website only updates on weekdays at noon
Using / for reduction reminds me of the Bird–Meertens formalism.
I think it greatly depends on where you work, the group of people you're around, and if the atmosphere is open office or something more discrete like cubicles.

My open office division of where I've been assigned, has a group of people that aren't very social and conversations usually end with I need to get back to work. They're all great people but totally different experience compared to previous socializing at work. I typically can get my "social fix" by visiting a different area of team members and that are way more toned down on just writing code all day.

This sort of solution isn't pleasant at all and makes me just want to work from home. In general I could just stay home, code and nothing would be missed.
And we've had 256KB L2 since the Pentium Pro. That's big enough for a Lua interpreter.
Vacuuming up RAM while all the other applications have to fight over the leftover scraps or wait for paging to get the data from disk (1) is NOT a good thing as much as Electron-zealots want to normalize running a multi-GB browser instance for every single application.

(1): burning through an SSD's limited number of write cycles OR being at least an order of magnitude slower to access in the case of HDDs
Except that usually someone from marketting or the reception still wont touch the website, because they think, that they can save time by delegating that back to the developers.
Wordpress has some kind of terrible design decisions backed in and yes, there are many more elegant and long term effective ways (it's not about getting it online in 30mins) to build a company website.
I'd definitely have to look into the actual chemistry of the process, but I don't find that claim terribly outlandish on principle. Most combustion plants end up having decent efficiency (as you mentioned) because of their access to heavy stationary insulation materials and co-generation/waste heat reclamation, but one way or another, they still end up running into the Carnot efficiency limit for heat engines.

Since fuel cells operate electrochemically, they don't have that same limit, which means their theoretical efficiencies are often higher (and the ability to get somewhat near those efficiencies track as well). I'm not sure if they're comparing to full-size plants or not, but the differences between the two tend to be more pronounced as size and weight of generator decrease, since heavy insulation and waste re-use are more difficult, but fuel cells stay (somewhat) the same.

I certainly agree with your observation about methane being an interesting path forward for storage technology for excess renewables, though.
everything any of us work with is a cryptic operator, if you think about it...
Does anybody has examples of websites that do this? It would be useful to see this in action.
If you look at token ring, idle machines just pass the token on if they don't have a packet to send. Other systems have central coordination and assign 'channels'. I think Bluetooth tries to do that for audio. (unsure)
No, not really. It was my entry point into Python, now I use Django mostly.

PHP opportunities are much more. I like using Symfony, though I also get Laravel or E-Commerce (e.g. Shopware, Spryker) offers. But of course this is because my profile is PHP / JS, so I get these offers.

Though Node.js as back end is noticeably increasing.