skysight-inc/HackerNews huggingface dataset:
Oh dear. After reading the notes in the study itself about the scale this was done at, scaling up might be an issue:

> A typical H₂O₂ synthesis reaction was carried out using 120 mg of 1% AuPd/TiO₂ [...] The reactor system was then pressurized, typically to 10 bar. The reactor was then cooled by a water bath to 2 °C. When the reactor had reached the required pressure and the flow through the system had stabilized, the solvent (H²O, HPLC grade), typically at a flow of 0.2 ml min¯¹, was introduced into the system.

Oh hey, 0.2 mL/min of water. In Virginia, the lowest flow cutoff for waterworks is 0.5 MGD (or 5000 people), the border between Class 3 and Class 4. That flow rate is 6.5 million times that done in the tests here. The large water treatment plant I worked at is another 400 times that, and there are plants that would be another 5 or 6 times that. So the necessary scaling factor is going to be measured in the billions.

So what about those reagants? This uses about 0.6 mg of gold to process 0.2 mL/min of water (if I'm reading the notation of 1% AuPd/TiO₂ correctly). Scale that to our small plant, and that's about $225,000 of gold and $350,000 of palladium. Go to the scale I worked at, and that's $190 million of catalyst in terms of raw metal worth alone. That's comparable to the cost of a regular treatment plant of that scale--just on the catalyst. This assumes that there's a neat linear scaling, which I doubt is going to be the case (square-cube law!).
> this quite thorough article [0]

Tangential, but I'm fascinated by the name of the mentioned "Right of Children to Free and Compulsory Education Act" of 2009. You don't often hear about your right to be compelled to do something.
You've confused value and price. Its price may not be affected by deterioration. But its value to people who study art is absolutely affected by the shape it's in.

The most obvious example is "Ecce Mono", item 15 on a list of botched restorations here: https://news.artnet.com/art-world/art-history-restoration-fa...
If you refer yourself, does n=0?
Is it looking at oxygenation or dissolved CO2 levels?
Tencent: "show me your face or I won't let you pay my game", me: "fine I won't play your game then"

Government: "show me your face or else[1]", me: "r-right away sir"

[1] https://en.wikipedia.org/wiki/Monopoly_on_violence
I wonder if a problem with math is that there are (at least) two sides to it: Practical and artistic. And I wonder if the practical or useful side of math could be taught today via computation.

Even the useful side of math -- the stuff supposedly taught in service to the science and engineering courses -- is taught with a computer nowhere in sight. Yet people who use math in those fields, including myself, always do it with the assistance of a computer, whether it's to help avoid dumb mistakes or to automate tasks involving large amounts of numbers. And the physics problems that can really be solved with purely symbolic math are few and far between, and rather contrived. It actually leads students to believe that the formulas are false when applied in the real world.

I don't think teaching computation would harm the handful of students who develop an interest in math as a liberal art. If they want to explore, they will, either on their own or with guidance. There's no reason why they can't be introduced to abstract math, and proofs, along the way.
Kaseya SaaS coming back online
So, roughly a 2 dollar/hour raise? Sounds pretty significant to me.
This was discussed a couple of weeks ago: https://news.ycombinator.com/item?id=27575580
Typical API scrappers, this also happened to Clubhouse, Parler, and LinkedIn, like I said months ago when Clubhouse's API was scraped. [0] Perhaps they used integer-based IDs and the hackers enumerated through the ID numbers, just like Clubhouse. Who knows. Probably also has a lack of rate limiting and other basic security defences; on launch. No different to the others.

> But given Gettr’s mounting early woes, the sketchy Twitter clone’s moment in the sun might already be coming to an end.

I would wait to see if they survive the year first before calling it TechCrunch. Gab was supposed to be wiped off of the internet, yet after several breaches later they are still alive and become even more resilient.

If you want Gettr to go away, do not give them the coverage on launch. It's more effective to report them sunsetting or shutting down than it is to report their launch day errors and jumping very early to conclusions.

[0] https://news.ycombinator.com/item?id=26769375
Maybe in the US. In Australia bricklayers currently charge over $100/h, plumbers are pretty close
Hacker News is generally lucky to be a community of extremely well-organized and put-together people, often with a bit of social clout and wealth. I've noticed on many threads an obliviousness to the fact you've pointed out.

Even In the USA or EU, a significant proportion of people do not have access to something like buying some Apple stock legitimately. Just think of all the people who use those extortionate "cash apps" and payday loan services. Why not just use a bank? The same reason they're not going to be buying Apple stock the proper way.

Most obviously, perhaps no bank account, or no ID. They may not have legal status in the country they live in. They may owe child support. Or tens of thousands of unpaid fines for criminal convictions. Or they have a garnishment against them. Or banks simply won't open an account for them because of bad credit. So on and so on, reasons legitimate, and not, for not engaging with the formal financial system.

This adds up to something like 5 - 20% of Americans depending how you set your threshold. To those people, both cryptocurrencies and possibly-scam crypto-investments are attractive because they offer something otherwise not available.
Quora's culture is odd in general. Writing "authoritative" (even they're just LARPing as an expert) is basically why people go there in the first place. It's not uncommon to read something egregiously inaccurate written as indisputable fact. Good examples can be found in anything to do with history.

On a funny note, Jordan Peterson used to be a well known Quora answer writer prior to his current career as an internet celebrity. Source: https://www.quora.com/profile/Jordan-B-Peterson
This, unfortunately, also implies an explosion of interest rate risk. Given a fixed monthly payment, I'd much rather be paying it at high rates that have a good chance of dropping, than at low rates that have a good chance at rising.

Edit: Thank you, Americans, for your perspective! I understand now that you have fixed rate mortgages there. That's, for better or worse, not the case in Canada!
The term I use to describe this phenomenon is treating side-effects as data. https://erock.io/2019/04/12/simplify-testing-async-io-javasc...
> so you can obviously manipulate the firmware side to ignore the debug fuse stuff.

Might not be as trivial as that makes it sound:

"Continuing through the boot process we can see that U-Boot loads a kernel, ramdisk and Flattened Device Tree (FDT) from a Flattened uImage Tree (FIT) image that is stored on an embedded MultiMediaCard (eMMC).

We can also see that the integrity (SHA256) and authenticity (RSA 2048) of the kernel, ramdisk and FDT is being checked. While we would have to perform some more tests it appears that a full trusted boot chain (TF-A) is implemented from the early stage ROM bootloader all the way down to the Linux operating system."
He didn’t even return one of the items! I feel like the thief’s lawyer is very happy about this story being leaked like this.
Is typescript really that great? Every implementation I have seen has

1 - Work-arounds for interoperability with non typescript / legacy third party dependencies. (issue: ugly, non consistent code)

2 - Turn off strict type checking due to third party component compatibility. (issue: isn't the purpose of typescript type checking?)

3 - Is type checking really needed for most applications? (assuming some flavor of CRUD with the occasional special sauce). (issue: seems a bit academic unless your working on a webapp for the mars rover)

This is coming from someone who programmed in java, .net, strongly typed languages for years and then feels like javascript is being held back with typescript. I love programming in vanilla javascript using frameworks (in this order) vuejs, reactjs, and charge extra to work on angular.
It's a derivative, it also exists in traditional markets and it's size is gigantic compared to normal markets.

As far as I understand it, in this case, it's essentially cash settled.
SSD is necessary. If you go to Slickdeals and set filtered alerts, you can get an SSD for dirt cheap within a few months. Switching to SSDs for me from W7 and W10 has been huge.
I usually just add a filter so it automatically skips my inbox and gets deleted
President Pooh bans VPNs but pretty much everyone uses them and jumps over the great wall.

People just have a 'compliance' phone when authorities ask to rummage through it.
WebOS was amazing as well. That’s my number 1 followed by WP
Am technical and worked with some pretty poor non technical co-founders but also worked with an amazing one. The difference:

Real, ridiculous charisma (like can totally work a room, will impress almost anyone they sit down with), very aggressive on the commercial side, down-to-earth judgment/understands things/easy to be on same page.

Might have viewed being insanely charismatic as a red flag but I saw first hand how easy it was to get meetings, create business and client relationships, and have employees basically loving the guy.

So a good test is: does this non technical cofounder simply blow me away as a person and in their manners.
I won't argue against coffee in general, as I'm definitely enjoying it too.

But have you never wondered what ~1-2 weeks of withdrawal could net you?

I'd have to find the sources again but basically all the caffeine does now is to bring you back up to the levels that your brain would have had without the daily mini withdrawals and to mislead you into thinking you are awake and/or more productive.

As in, without any caffeine ever, your morning would not be bad until your first coffee. Your afternoon lull would not be a caffeine deprivation lull until you get the boost back up.

Students trying to stay awake on caffeine to finish that paper or whatever are not magically doing great work. In fact, their brain is just as bad at what they're trying to do as if they didn't have caffeine but their conscious mind doesn't notice, because of the caffeine signaling them that they're more alert and awake than they are.
> At the time, Netflix wasn't super high-tech

I will admit that it was interesting to see what algorithms were poised to be cutting edge in media recommendation. The result was rather disappointing to me.

Netflix STILL isn't that exciting from anything but a compensation standpoint. The problems at netflix are about programming, while the technical challenges are droll at best.
Yeah, that's actually a hassle for miniaturizing optics because at any given wavelength, you can make optics out of silicon, or detectors, but not both. The IR detector materials all have their tradeoffs, of course.
Useful Resources for Beginners and Intermediates in Programming
You are absolutely right. Would you like your brain surgery to be done by a young kid straight out of collage or a 20 year veteran who has experienced and seen it all before?
Heard it here first. Fiat money caused the holocaust.

Hyperinflation is not the result of monetary policy. Hyperinflation is the result of near total collapse of systems. BTC is absolutely not immune to hyperinflation. That's just what happens when the price of some currency tanks rapidly as people lose all trust in its stability. The mining cap does not prevent the collapse of BTC as a currency or the collapse of states that use it. Not even a little.
That's false and politifact has shown numerous times that they are nothing more than narrative control. Here are the facts:

1. Even the hyper liberal anti-gun Gifford Law Center gives their second highest score of A- to Illinois and A to New Jersey.

https://giffords.org/lawcenter/resources/scorecard/

Texas gets an “F” from Gifford Law Center, yet Houston and Dallas have murder rates that are half of that in Chicago. The rates in Austin and El Paso are tiny when compared to Chicago. All this despite Texas having neighbours with cartels south of border.

2. The age for purchasing handguns (pistols and revolvers) in Illinois is 21 years old. Vast majority of the gang violence and shootings happen using handguns.

3. The state requires gun owners to obtain licenses and face background checks as well as imposing waiting periods on firearms purchases. They also have red flag laws.
So you expect people to live without any entertainment? Just work eat and sleep I guess.
Facebook Partners with Liquid to Extend Africa Fiber Network
Microsoft's Jedi Pentagon Contract Scrapped; Amazon to Share Work
Nobody is claiming to be selling stock in companies. They're claiming to be, and are, selling synthetic assets that track that price movements of stock.
A bad security policy is an attack on the Availability part of C.I.A. Your security policy definitely shouldn't lead to leaking information or falsifying data, why is it so acceptable to make system availability go to shit?
Love “x at y” stories. Would be cool to hear about graphQL at Google too
Ocado uses a white-label (or close derivitive) of the Autostore Microfulfillment System https://autostoresystem.com/system/ which is one of the most popular microfulfillment solutions today https://brittainladd.com/what-is-the-best-micro-fulfillment-... and has been around for ~20 years.
I like TypeScript just because it makes it easier to know what you're writing, due to features like autocomplete with types, even if I don't strictly follow it.
> It is the government's job to solve / prevent / deter crime.

Network Border Protection Agency, NBPA. A nation level firewall, much like China’s. Plus KYC rules for renting compute inside the country.
Like other commentor said. Look for deals on iPhone SE 2020 or iPhone 12 mini or any other lowest iPhone mode since 2018 fall release (iPhone 11 and iPhone XR). Any of them will last for many years. Battery replacement might be needed after 3 years.
Pentagon cancels $10B Jedi contract challenged by Amazon
I started a new project with TypeScript a few weeks ago and I kinda like it.

Many libraries come with TS support out of the box and the autocomplete and automatic renaming across files is quite nice.

I'm using strict mode and didn't have issues yet, but I'm just at the beginning, so let's see how it goes.
I don't think that's too unusual. Being technical is for me a prerequisite to understand the complexities of the product I am (we would be) building.
It should be easy to move, live and work wherever one desires. Arbitrarily stringent border controls and immigration policies are a tax on us all.
Consider for example that TCP sockets are not available in the browser. There are other protocols available, but no simple TCP sockets. So you can see there are fundamental differences there that cannot simply be abstracted over.
Climate change tends to mean more extremes, hot and cold (and windy). Southwest Canada is normally known for mild summers but it peaked over 110F last week. It was 95+F in my office.

So maybe plan accordingly just in case....
Things are a lot better now than they were in 2018, in large part due to his work and his team's. The typescript migration has gone well, with good automatic migration tooling, and I mostly only use TS now. This means good error messages, and good editor support.

(Disclosure: I work on ads at Google, speaking only for myself)
Of course it's not fair but I don't think that's a compelling argument not to enforce sanctions against Iran.
Data breaches don't kill people in general. Medical devices can.

Your point is well taken, even though things are not as bad they are still bad.
Source?

It was my understanding that there was significant business value in improving the accuracy of personalized movie recommendations. Recall that this was at a time where the majority of the business was DVDs sent via mail. A poor choice of movie created significant risk to customer satisfaction and hence retention.
I'm sure they would reactivate you if you say you work for the bounty. You do work for almost free...
Everytime I think software is already ridiculous and going to far something happens that goes so far I can hardly believe it. This is one of those things.

It won't take long at this rate until it's completely normal for the software of big companies deciding what you can and can't do at all times during the day.
Free IPV Adult Netflix Sports All World Fast Servers of the Day 7-7-2021
There is only one way to know until that thing gets reversed...
Tencent has a monopoly on entertainment?
A family of 4 is normally fine with a 60 gallon water heater. Doubling that to 120 gallons takes up roughly 1 extra square foot of floor space assuming a 6’ tall tank. If you’re living in Manhattan at ~1,500$/sf might be worth it to avoid peak rates, but just about anywhere else it clearly is.
There are no benefits to you. There are plenty of benefits to me. Let the market decide? Probably not. It's easy to accuse people of logical fallacies while somehow you're the sole arbitrator to what is and isn't good for users.
I don't think anything would stop someone from publishing a great paper in physics or computer science on their own in 2021.

Albert-Laszlo Barabasi's book The Formula is kind of about this. While nothing would stop an individual from publishing such a paper, outside a major company or university setting an individual wouldn't have the network to notice the paper basically.
At what cost?
What are the second order effects of the glorious revolution?
That's great, nothing stops you from using an alternative microcontroler that doesnt check signatures and mimic that one.
What does it mean? I fully expected to explain the semantics and yet I still don't know what that triangle squared means. Oh well.
The only distinction there is Client/Server vs Peer/Peer, peer discovery is a thing, but other than that it's fundamentally the same problem with the same solution(s).
There's a fascinating Derren Brown program The Great Art Robbery where (if I remember right) he tells a gallery what he will steal and the exact time, and still manages it.

https://www.youtube.com/watch?v=Cb1I7Ld7Cc0
A computer should talk to people [pdf]
>provides protection after the water has left the treatment plant?

Yes, that is what residual treatment is.

I'm not familiar with peroxide systems, but for this industry, you don't change things without a very good reason. If we're talking about new niche uses, then that's a different story, but still merits caution.

Related story:

Washington DC tried to "upgrade" from a chlorine system to another chlorine derivative that was supposed to have some marginal EPA benefits, and on paper it was a great design.

In practice (and many tens/hundreds of millions of dollars later), the water quality had a sharp decline, with all sorts of unexpected chemicals showing up. It turns out the old system had the unintentional side effect of "filtering" out all kinds of nasty reactive stuff (including lead), and the new chemical balance reversed the process. All the chemicals that had been sequestered in the pipe walls for decades or longer, were now getting pulled back into the water. Oops.

Then there was the initiative in India where thousands of water wells were drilled, only to discover the water contained arsenic.

>I suspect that the type of decentralized system the authors think that this is useful for would be a nature where that's less of a concern. Smaller system leading to decreased time/distance between processing and use.

It may, but UV disinfection has similar properties and has been available for a while now, probably at a lower price.

Also, if water's getting transported in personal containers, chances are they're dirtier than any water main. It's easy to draw the limits of the system at a convenient point, but these are the situations that probably need residual treatment more than than we do.

Of course reality dictates what's feasible, especially in the 3rd world, and "exciting" new tech like this might get funding that boring old school solutions won't.
According to this[1], they list the below 5 patents which are still active until 2033

AutoStore alleges Ocado is infringing on the following five patents: 10,093,525[2], 10,294,025[3], 10,474,140[4], 10,494,239[5], and 10,696,478[6].

[1] https://www.therobotreport.com/autostore-sues-ocado-over-as-...

[2] https://patents.google.com/patent/US10093525

[3] https://patents.google.com/patent/US10294025

[4] https://patents.google.com/patent/US10474140

[5] https://patents.google.com/patent/US10494239

[6] https://patents.google.com/patent/US10696478
Rosa Parks did not act in the heat of the moment when she refused to give up her seat. It was a carefully planned moment with multiple parties involved in the planning, intending to have a specific effect and executed calmly. Being calm was an asset.
> you can show [...] every linear differential operator [that commutes with translations and rotations] is a polynomial in the Laplacian.

I may be tripping over something here but this doesn't sound right. If you mean polynomial in the real number sense, i.e.

Lu = a0 + a1 Delta(u) + a2 Delta(u)^2 + ...

(where Delta = Laplacian, and a0, a1, ... real numbers), then is this true? The famous wave operator doesn't have this form.

And if you mean "polynomial" as in a series over function space, i.e.

Lu ~ a0 + a1 Du + a2 D^2u + ... (infinite terms, not equality but convergence)

where D is the usual differential operator and a0 is a number, a1 is a 1-d vector, a2 is a 2d matrix, so on, then this is standard calculus of variations on any reasonable function space. Taylor series for function spaces if you want. I don't think that's limited to nice Galilean operators.
I run a document parsing service, focused on structure detection like tables and form-data. We have tested 27 OCR engines till date, and we do it every 6 months. In our latest evaluation hyperscience.com turned out to be the best in HW recognition, expensive too. Azure's cognitive service is next to it.

P.S: I've no affiliation with the mentioned services
Doing Typescript for a living.

2 out of 3 of the items you wrote down has to deal with old baggage, so whatever form of language you are dealing with those, you aren't going to have a good time. You can either bite the bullet and write the type definitions yourself, or just disable the type system altogether, which, if you can isolate it to a certain area in the code, you are fine.

If you are writing code that some other person is going to read and/or you are interested in having it behave reliably in the long run, I think a static type system is a must. Coupled with good unit tests, if the type checker does not complain, you can be very confident the code you wrote is working and will work for a vast majority of the cases.

Typescript is especially great because, unlike some other statically typed languages, you can choose not do use it in some cases (e.g., setting up mocks for tests, writing a small script to see how stuff works, etc), which is liberating.

I went from Python to Typescript. Python is still my go-to language for random tasks, though unless I have a good reason to do otherwise, I don't want to deal with a production codebase that does not do static type analysis anymore. I don't know others, but I just get more done in less amount of time in this way.
China does it right now, maybe other countries follow. Many countries are not democratic.