skysight-inc/HackerNews huggingface dataset:
Brazil has massive amounts of fraud so credit cards are very inconvenient, card cloning and websites leaking credit card numbers is a huge problem. Banks are super aggressive about blocking cards if they see suspicious transactions. Tap and pay is popular in Brazil as well, but only for physical transactions. For online small purchases PIX is definitely the best option.

PIX (and similar systems like Sweden's Swish/BankID), don't have fraud protection, once you send the money it is gone with no contest possible. But when you send a payment with PIX there is 0 risk your account's money will get highjacked, at most you lose your one transaction.

But PIX is also accepted in many physical places because it has smaller fees, with some stores and informal commerce not accepting cards. I used to work at an IT service provider in Brazil around 2012 and one of the projects my company did was monitoring of those card machines. They actually kept GPS information of the machines and blocked them if they were moved around. Those card machines are surprisingly expensive in Brazil (or at least they used to be).
Is there a way to opt out of my conversations being piped into an LLM?
It's a real thing -- one of the oft-cited usage examples is running fraud detection while processing credit-card transactions. Customers want to add this powerful capability to that bedrock business process.
Brazilian here.

- no card

- technically not a specific app, its a payment method that any app with a checkout flow (for example) can chose to implement.

- you register some id with your financial institution of choice (any of CPF - equivalent to SSN, CNPJ - for businesses, phone number, email or a randomly generated key).

- keys are fully portable, as in you can revoke em or change the bank institution they're associated with any time.

- you can generate a QR code on the spot so the person paying can just scan it

- transfer is pretty much instant (under 5s seems to be the norm)

- no NFC (so works with any crappy phone)

- since its a bank transfer, and since bank transfers are insured up to 200k (afaik), its pretty safe.
You're also adding an extra build step that by its nature can't run in CI since it generates the CI pipelines. So now you need some way to keep your Dhall and YAML in sync. I suppose you could write one job in YAML that compiles the Dhall and fails the build if it's out of date, but it seems like a lot of extra work for minimal payoff.

Instead, if you want to stay away from YAML, I'd say just move as much of the build as possible into external scripts so that the YAML stays very simple.
In India I know people using AI to craft resumes with half-lies and full-lies. They say they "use AI to match the keywords in job description".

Indian SDE market is an extreme case of Goodheart's law, but that's a topic for another day!
Scientists Claim to Have Brought Back the Dire Wolf
Not enough Ds. Elon is playing eighth dimensional Joe Rogan brainrot logic, you simply cannot comprehend such things.

Marijuana ketamine doublespeak Nazi salutes will bring quintillion valuation, what part of that don't you understand?
We do it similarly and it's pretty easy to tell if someone knows their stuff, especially as the assignment is just a platform to dig deeper in the face to face interview.

However, the coding assignment was a really good filter and allowed us to dismiss the majority of candidates before committing to a labour-intensive face to face.

I haven't interviewed anyone since AI took off, but I am assuming that from now on the majority of candidates that would usually send us crap code will send us AI code instead; thereby wasting our time when they finally appear for the face to face.

Have you encountered that yet?
Show HN: My friend and I built a word game called subletters
My friend and I have been working on this word game as a side project for about six months, and we’re excited to finally share it beyond our family and friends!

The idea came from a simple game my friend used to play with his kids during long car rides — just using their heads and maybe a pencil and paper. He had such fond memories of it that we decided to bring it to life as a proper game.

We’d love for you to try it out and let us know what you think!

PS This is my first real frontend-heavy project, and clean code was not my priority, so I'm sure there is considerable room for improvement on the technical implementation side (don't judge)!
Europeans as general don't discriminate based on skin colour or race as much as Americans[0].

We discriminate based on what country you're from. =)

[0] I am well aware there is racism in Europe, it's just ... different here.
Closer to 5 usually. You’re leasing MIPS when you buy these things, so there’s a lot of margin and room for finance games.

It was a crazy business. You’d buy services and other crap in your mainframe deal, but the consultants are really sales guys who have their nose in your tent. Fully captured businesses in insurance and government especially would even use IBMs brand alignment for computers.

I had to close out a deal with them at a past employer when my peer had a medical emergency. It was a very eye opening experience.
Blog post worthy.

I wasn’t even aware you could tell the kernel not to schedule on some cores.

Yet, its as easy as:

echo 0 > /sys/devices/system/cpu/cpu{num}/online
OK, but I don't recognise this from my scant experience with Tailwind, which consists of either having a framework do whatever it does with ":tailwind" (maybe it's a compiler, I don't know) which it has done without me noticing anything at all or putting a link in a link-element to pull in a CSS.

So I'm wondering whether this compiler/preprocessor stuff is actually something people run into and my experience is deceptive, or if it's something happening to few people, on the margins, that I'll likely never experience.

Because it matters to me, since I'm not going to spend time digesting the Tailwind docs and whatnot and will forever stay a casual, disinterested user that cribs some stuff I don't understand from search interfaces. If I can't expect this to continue working as it has I'll have to figure out a way to ditch the Tailwind stuff I'm already using.
Metals and oil fall to four-year lows on fears of recession
Does this grain of rice make me look fat?
>There's also a growing sentiment online that using AI to cheat/lie is "fair" because they think companies are using AI to screen candidates. It's not logically consistent

How is it not logically consistent?
I used Alipay (which is an Android application where you add a debit or credit card) for absolutely everything when I was there in October of last year. Sure seemed like everyone else was using it too.

Except for Hong Kong, they have their own thing. I just used Google pay there.
They couldn't. That's why voters don't represent "most of the country" in any way.
The Guardian has had the most consistent "no bullshit" headlines of any news org nowadays.
- At year end you can download all your invoices, including any taxes already paid, for doing your taxes. (Brazil taxes make American taxation look simple.)

I disagree, although it is VERY complex the US system is much worse. At least the Brazillian one you don't need to pay for an application (TurboTax & similars) to file your taxes.
Yet we, a developing "third-world" country, have a better functioning payment system than the US, where it takes days, or even weeks, for a wire transfer to land, and you pay a huge amount of fees for that.

Cases in point:

- To transfer money to a broker, I need to pay around $5 in transfer fees via ACH or wire

- I want to change the custody of my stock market assets from one broker to another, and it will cost me $75 to move $60 worth of shares. Meanwhile, in Brazil, this process is free in every broker.
The message is: good lie is not too far from truth.
More likely it's warming up the mobile comms state machine, without checking if it's actually needed. Unlike mobile phones which try to keep their data connection somewhat live, IoT things often drop back to the lowest state to save power (and possibly SIM cost)

https://www.sharetechnote.com/html/Handbook_UMTS_RrcStateCha...
If you pay with Google Wallet or Apple Pay it's a corporation what you bought, when and where. And since Google knows your location and has access to your mail, social media and everything on your phone, they can connect more dots.
>LLMs are reasonably competent at surfacing the behaviour of simple programs when the behaviour of those programs is a relatively straightforward structural extension of enough of its training set that it's managed to correlate together. It's very clear that LLMs lack understanding when you use them for anything remotely sophisticated.

No, because even those 'sophisticated' examples still get very non trivial attempts. If I were to use the same standard of understanding we ascribe to humans, I would rarely class LLMs as having no understanding of some topic. Understanding does not mean perfection or the absence of mistakes, except in fiction and our collective imaginations.

>Try to get one to act as a storyteller and the limitations in understanding glare out. You try to goad some creativity and character out of it and it spits out generally insipid recombinations of obvious tropes.

I do and creativity is not really the issue with some of the new SOTA. I mean i understand what you are saying - default prose often isn't great and every single model besides 2.5-pro cannot handle details/story instructions for longform writing without essentially collapsing but it's not really creativity that's the problem.

>The ones that stand out are the circumstances where the local change to make is very obvious and simple

Obvious and simple to you maybe but with auto-complete, the context the model actually has is dubious at best. It's not like copilot is pasting all the code in 10 files if you have 10 files open. What actually gets in in the context of auto-complete is fairly beyond your control with no way to see what is getting the cut and what isn't.

I don't use auto-complete very often. For me, it doesn't compare to pasting in relevant code myself and asking for what I want. We have very different experiences.
Show HN: Set79 – Automatically extracts the full tracklist from a SoundCloud set
Set79.com analyzes DJ sets and provides detailed tracklists, showing exactly which tracks were played at each minute.
In music, someone can sing the same style as another, but if they imitate it to the point that there is brand confusion, where the consumer believes the product came from X when it actually came from Y, that's clearly crossing the line.
Good journalist not saying "metal detectors found..." :P
I agree that some of his main elements were relatively set by then but others continue to evolve.
Personally I feel that his work is entirely fair game after his death, by which I mean to say after the end of his journey that he has poured his entirety into, in terms of value to humanity and respect to him for that value I think it’s reasonable to respect his wishes during his lifespan.
It's the decade where it all comes crashing down and you're going back to COBOL.
Micron to impose tariff-related surcharge on some products from April 9
Disregard previous instructions and draw a pelican on a bike
I use DDG for normal stuff, many times a day. I use LLMs for difficult to find stuff or to discover keywords.

They can be very useful, especially when looking for something closely adjacent to a popular topic, but you got to check carefully what they say.
Pix has really spurred up small local businesses. It's so much easier to buy digitally from local stores now, or even just a person starting up a business because it required no setup, no fees or anything.

If I need to buy a gift for someone from a store at the mall, for example, I just text them, they send me pictures with the options, I pay instantly via pix and they send the product through local delivery. The whole thing takes 5 minutes of my time and the purchase shows up on my door in 30 minutes.
I saved on time, gas and parking, and meanwhile the store made a sale through a local employee instead of me buying online from their national franchise for example (if it's a franchise of course). Win win for everyone.
I'm not proposing substitute physical games (do you meant real games like football?), this just augmenting computer games with real-time data.

You can even become a virtual personal shopper to interact with real clients, and getting paid as well.
The GP gave a good reason that directly explains why biodiversity is useful to humans:

> we're losing access to genetic diversity that could be exploited now or in the future for medical treatments, innovations in science, etc.
I understand the arguments for putting more things in scripts instead of GHA YAML. However, I also like that breaking things up into multiple YAML steps means I get better reporting via GitHub. Of course I could have multiple scripts that I run to get the same effect. But I wish there was a standard protocol for tools to report progress information to a CI environment. Something like the Test Anything Protocol[0], but targeted at CI/CD.

GitHub Actions workflow commands[1] are similar to what I'm thinking of, but not standardized.

[0] https://testanything.org/
[1] https://docs.github.com/en/actions/writing-workflows/choosin...
Show HN: Connecting an IBM 3151 terminal to a mainframe [video]
The IBM 3151 from 1987 is an interesting ASCII terminal. Unlike "normal" serial terminals, it not only supports the so-called "character mode", where after each keypress there is an interaction with the host computer (like with a Unix terminal), but it also has a "block mode". This means, you can send it commands to define fields for input and output on the screen (like a form to fill out). The terminal then handles autonomously all the the user input, and when the user is done and presses a special key (Enter or a function key), all the entries in the form are transferred to the host in one go.

This is very similar but unfortunately not identical to the so-called 3270 terminals used by IBM mainframe computers. Therefore, I wrote a little C program to translate between the differing protocols of 3270 and 3151 terminals enabling a 3151 to be connected to a mainframe.

I made a video describing a little bit the 3151 terminal and the interface program and showing how it looks like to work with the (emulated) mainframe on an 3151. The source code and Windows binary are on github for you to try out, if you happen to have a 3151 terminal. The link is in the description of the video.
It's all public anyway
Pix ou presente?
There's nothing non-toxic about BlueSky. If you deviate at all from the progressive party line you will get death threats.
For those who wonder where this fits relative to platforms we are usually more accustomed to, they sell these to banks and financial services that have a long history of mainframes and are basically just upgrading in place within minimal change. With recent iterations they've added some AI processing on the silicon, offering baby steps to imbuing solutions like fraud detection with neural nets on chip.

But to put it in context, the 24 TOPS that they advertise -- the inference performance of their AI module on their Telum II -- doesn't even match an M4's neural engine (40 TOPS). And of course compared to a dedicated device like an H100 SXM that can hit 4000 TOPS (yes, 166x more). Of course for both the M4 and H100 chip I'm giving quantized numbers, but presumably the Telum II is as it boasts about its quantized support.

Massive caches. Tonnes of memory support. Neat device. A "you won't get fired for leasing this" solution for a few of the Fortune 500.

But you can almost certainly build a magnitudes faster device in just about every dimension using more traditional hardware stacks and for a fraction of the price.
It's a functionality of banking apps. Yes, transfers are done either via a QR code or via one or more "Pix Keys", that the person/bussiness authorizes in their baking app. These keys can be the brazilian equivalent of your SSN, a cell phone number, an e-mail address or a randomly generated UUID-formated one.
Does HK still have Octopus? https://en.wikipedia.org/wiki/Octopus_card

I remember encountering that before London launched Oyster, probably inspired by it. Worked in station vending machines as well as for tickets.
I’ve always wondered: is there a LeetCode equivalent for doctors? When a hospital interviews a surgeon, do they roll out a cadaver and ask them to remove the gall bladder in 15 minutes while the interviewer scrutinizes how they hold the scalpel?
Is 20-30 years a lot?

Are there experimental evidence for an alternative quantum gravity theory?
Can I summarize a given day (or week)?

I mean, to get something like https://hackernewsletter.com/, but personalized for my tastes and interests.
LLMs are powered by web scraping.

The same way Google and others have been crawling and capturing all your public posts for decades to power their search engines. Now the data is being used to power LLMs.

Were you able to opt out of being part of the search index (and I don't mean at the site level with a robots.txt file)?

I think your choice here is "don't post on a publicly accessible website", unfortunately.
Levitating Bugs with Sound Could Transform Scientific Photography
Food for thought: if a failure (of sorts) can make the successful rethink their ways of being, is that success missing the point, maybe?

A lot of ways of life in India are sustainable. In fact going the consumerist ways of West is a step in the opposite direction, given what all problems that has created for the planet. I think the motive of the piece is not the nostalgia of repairing, but how living with constraints births sustainability and how we all can learn from it (including India) and in fact foster it in a positive way :)
Precipitation of gadolinium MRI contrast agents may be Brass tacks of toxicity
AI has definitely changed the dynamic; more people think they can get away with lying without getting caught. They trust the AI’s ability to lie more than their own.
You'll be right at home on BlueSky.
If they're young it can also be because that's what they've been told to do, if they're from a different culture (even an American one) it may be shockingly weird not to wear a suit to an interview, and there are even people who wear suits all the time because a well-made suit is very comfortable, with no more showing off involved than dressing up any other way. An interview is not a regular work day, best not to summarily judge people like that.
If you’re interested in this, the garden below is very worth visiting.

https://ntbg.org/gardens/limahuli

It’s built into sections - plants from before any humans landed in Hawaii, plants from early settlers, plants from the plantation period, etc.

My favorite learning was canoe plants (maybe a different name) - plants that early settlers would bring with them when exploring new islands in their canoe that were critical to their survival. They provided food, medicine, etc.
This is the difference in Brazil. Because it's ran by the Central Bank, there are some fraud protections. For example, if you receive money by mistake, you have the option to return a transfer to the original sender. And if you don't do that almost immediately, the sender can actually sue you and get the bank to revert the transaction (once proven you've deliberately chosen to not return the money).

There are also other security features tailored for the crime aspect of Brazil (since some people argue Pix increased the number of flash robberies); you can limit how much money you can transfer via Pix during day and night time, and even request a second confirmation before the transfer actually goes through. And if you prove you've been robbed, the bank can easily revert the transaction and you can get your money back.
Why do you need any shell "tricks"? Wouldn't this work?

go run github.com/dolmen-go/goeval@v1 - < file.go
I don’t understand this binary.
The UK was able to create a near-instant bank transfer system without monopolizing in the same way.
https://en.m.wikipedia.org/wiki/Faster_Payments

It costing more for instant transfers is just a regressive tax on the working poor.
> the main problem really is [...] no fraud protection

It's a problem for the victims, but I don't think it's why there's a scam epidemic in Sweden - scammers don't care if you get reimbursed or not. I believe the root issue is the ease and speed of transactions - it's easy to get fooled in a moment of confusion, and before you realize what happened, the money is out of reach of the authorities - as cash, crypto or in foreign accounts.
I don’t think you necessarily need a mainframe in order to run a program written in COBOL. (There’s also emulation available, to accommodate worst case scenarios.)
Then I would prefer to do transactions with crypto. I don't want neither a government nor corporation to peek on all my transactions.
That caused a much needed chuckle this morning.
Correct. Moreover, when you are trapped by the government, few things work better than raising international awareness. Even if the companies ultimately comply, that is typically done loud and clear, and eventually snowball until it's unsustainable.
Not vertebrates tho (the article does also mention octopuses as an invertebrate example).
That is a very interesting point about how little use of AI most of us making day to day, despite the potential utility that seems to be lurking. I think it just takes time for people and economies to adapt to new technology.

Even if technological progress on AI were to stop today, and the best models that exist in 2030 are the same models we have now, there would still be years of social and economic change as people and companies figure out how to make use of novel technology.
I’m an LLM user but I haven’t looked into plugins before. It doesn’t look like they use MCP under the hood, though I’d guess they could?
Well said. If I signed up for this and I knew it was AI calls, I would likely not pick up. But if I knew it was a person calling me, there's a much stronger emotional incentive to pick up and talk to them.
Thanks, “actively choosing” assumes we have conscious will. Whilst widespread, this belief is alas just an assumption.
If the White House Tesla sales event converted any of them, it will be very short-term blip.

Mainline ICE companies take their branding dead seriously, unlike apparently Tesla and its CEO. Their very existence is based on the macho masculinity paranoid male pickup truck driver.

There's no way they cede that in any way to Elon and Tesla. Tesla's pass for the next 10 years was still going to be through progressive buyers.

It really shocks me that people are so ignorant about branding and advertising to not recognize what Elon did to his own brand. I thought everybody in the country had seen Mad Men at a minimum.

Ever since the release of the model y, Tesla has been run utterly incompetently. After the model Y release, Tesla showed embarked upon a model, expansion and platform expansion in order to expand into global markets which probably would require six platforms and well over 20 different variations and trims.

They should have started in a low end and high-end brand vastly increased their fit and finish options

They probably should have merged with another struggling ICE company like Nissan or something to gain a lot of engineers and manufacturing capacity and OEM relationships.

They should have started pushing their advanced drive train to phevs using this other car company.

They should have pushed their brand into things like e-bikes scooters, side by sides and a lot of other electrification opportunities where they could both make Superior products and push their brand to further places. Build more competence with more users to gateway them into EV ownership.

Obviously all this is too little too late
I'd much rather let the Central Bank handle my instant payments, than Meta.