skysight-inc/HackerNews huggingface dataset:
For all you QR enthusiasts!

I upgraded the site generator to create even better visual QR codes, it now even can produce a QR in a QR. Enter the gift code "WELCOME" and use it for FREE.

Seeing many application areas for (near) photo realistic QR codes I thought I could invest full-time into it and make it sustainable. I was hoping it would have an organic attraction and build a user-base. After 28 days being online Google Search congratulated me that it was clicked 15 times at average position 60. How does that compare? My visitor count is on average less than 1 per day.

How do I get more people or businesses interested. Does this technology have opportunity to continue investing in? Where should I focus on? Or, is the industry shifting away from QRs, making it wiser for me to focus on other ventures?
> after I was having a fit with [...] the CEO [...] on X/Twitter.

Can you add a link to that thread? I'm interested how you handled that communication.
Here are three of them:

https://www.reddit.com/r/crtgaming/comments/liyitz/the_pictu...

https://www.reddit.com/r/crtgaming/comments/egvuqt/kv3000r_u...

And this guy "I have a Sony KV-3000R in New Condition. Mike exestexas@aol.com" https://www.avsforum.com/threads/seeking-sony-pvm-4300-and-k...
Oh, I thought you were talking about the actual browser process crashing. But seriously, are you saying that in React, a child component that throws an error during render will kill the parent's render too? That's wacky. I do Vue for a living, which doesn't behave anything like that.

But anyway, the chart looks like regular DOM to me. The canvas is actually in the top navbar, but I don't see anything drawn on it.
You have a nice theory there, would be a shame if something happened to it.

I played this older computer civilization-like space game. In it, there was an hyperaggressive race that always went to war with everybody. They always died out first.

I think conflict will always exist, but violence? I am not sure. I think it comes down to availability of information. People don't like a*holes. Once world becomes a global village, and almost everyone will run a SW on their phone that keeps tabs on other 8 billion people, starting a war will become nearly impossible.
I suspect we're quite close to ships switching to wind simply because it's cheaper.

Huge kilometer square kites would be pretty cheap compared to the fuel budget of a ship, and clever routing and control systems can probably mean they reduce fuel consumption 80% for the same travel speed.
It would certainly be more interesting conducting war with semi auto potato cannons
I don't buy it. We have already learned empirically that "fix your bugs" (or, better, "don't write bugs in the guest place") is a failed solution to memory safety.
several on ebay, here's one:

https://www.ebay.com/itm/115272079823?itmmeta=01J10WB15JY1KF...
It's just a completely different paradigm of rendering and it's not clear which one will be dominant in the future. Gaussian splats are usually dependent on initialisation from point cloud, which makes whole process much more compliacated.
Yes, it's still the same memory as everything else. It's more like a book or description.

It's still not the norm. I have normal dreams without being wake in them or waking up from them. According to my "research" (asking friends and family) I dream a little bit less often than other people - maybe one dream per week or two.
Please do not choose jira. I hate it.

My current most hated bug: it somehow enables an filter shirtcut and the only way to remove it, is to edit the url. If i click on the shortcut then it appears twice in the url and clicking it again only remove one.

Then there are all the fields in the story that nobody ever fills out, but are always visible,
Well, I don't share this insistence that natural language is somehow special or privileged. Natural language has a tree structure and nobody need to learn about formal grammars to comprehend that. A schoolchild understands this much, without having to understand recursion in a rigorous way.

Furthermore, as I mentioned before, formal grammars are artificial languages in their own right. The key thing is that the only way a human being can understand these languages (e.g., still at the level of syntax, independent of recursive computations like in functional programming which you did mention) is through some kind of recursive reasoning about their grammar.

And to keep the discussion at the forest instead of the trees, it is weird that human cognition comprehends these tree structures, recursive structures, or fractal structures, relatively naturally and intuitively. If I had said fractal would you have argued that natural languages don't exhibit fractal properties? We are talking bird's-eye level view of things here.

I also believe in the Church-Turing thesis plus the Chomsky hierarchy of computable languages (the idea that languages are models of computation, and that some language classes contain other classes in a hierarchy of what is computable -- see for instance the formal class of Recursive Languages), meaning that natural languages are not based on magical computations exceeding the power of universal computation; furthermore, as another subcommenter (see both users bbor and foobarqux) put it differently to you but if you are committed to a position that natural human language can only be approximated by artificial languages defined by formal grammars then you can never have a humanly intelligible account of the computational features of actual human language. It would be like arguing a laptop is not "meaningfully" like a Turing machine because a laptop has finite number of atoms as is thus really technically a finite state machine -- it's throwing the emergent/abstract baby out with the empirical bathwater.

https://en.wikipedia.org/wiki/Recursively_enumerable_languag...
Anything political or feeding the flames is not encouraged on HN. Especially if it appears bipartisan, personally. And many of us are in other countries so the whole subject is usually annoying.
That's not the only problem.
I just name things for what they do, and don't worry about branding. Branding matters once you have a product people want to use... so get there first, and then brainstorm names with both your team and early users.
Designing and Implementing PEzor, an Open-Source PE Packer (2020)
Science or Authority? By Alenka ZupančIč
maybe. there is an emerging body of evidence showing that different grazing methods influence carbon sequestration rates. https://pastureproject.org/about-us/regenerative-grazing-ben... https://www.theguardian.com/environment/article/2024/may/15/...
it's all relative. the order of operations is M&A, diplomacy, warfare.
I wish it was this simple. All energy is still borrowed. Mining and producing and disposing of solar panels is still very energy intensive.

Renewable energy is a piece of what needs to be a much larger effort to fight climate change.
It could be worse.

It could be so dysfunctional, that the most visionary, capable, creative, and dedicated efforts need to be taken under the role of an anti-antihero ;)
I wonder how the rest of his career went. I hope he joined some dot com and made a killing.

sigh the bit about everybody else thinking you are cheating because you actually know the best way to do it part really brings back bad memories......

I tried to introduce embedded lua at one company....another guy had just spent 2 years, though, developing his own language, which, of course, was buggy, incomplete, and ran just about 100 times slower than lua....

That bit about wondering WTF to do after being laid off AGAIN also hits pretty close to home. You spend your whole life refining your craft, and one fine day, the market decides that its value is exactly $0.00
> Those low-wage tourist-oriented businesses are making crazy high margins and paying workers peanuts.

They are really not.

I looked into this in 2019, when I was making a backup plan to get an investor visa in the EU. You can buy a hotel business in Greece for basically peanuts, but it is almost impossible to make _any_ profit without resorting to shady tactics.

That's also why large chains can move in so easily. They can spread a lot of expenses and risks across multiple properties.

It's not a healthy situation to be in.
Sure, it's energy intensive, but if that energy comes from the sun, who cares?

I don't understand we keep using "energy intensive" as a euphemism for "emits carbon". The two aren't synonymous. Energy-intensive processes aren't a problem at all, the problem is dirty energy generation processes. Fix your energy generation, and there's no problem.
Show HN: Simple script to cripple personalized targeting from Facebook
I do, thanks for the correction.

Asbestos gets into our lungs, winds up poking us, and does a lot of damage on the way out. If it ever gets out. Some fibers can get stuck for years.

It's entirely mechanical. Any strong enough fiber of a similar size and shape will create the same class of problems.
I went down this road and it's mostly a lose-lose situation at the moment. There's just too many things to consider.

My personal and most practical take:

(1) install an adblocker, and if you have the energy:

(2) message your representatives asking for stronger privacy protections
Reverse Tunneling Software – Holesail
Why doesn't Texas wage war on Oklahoma?
So the claim that LLMs are intelligent is predicated on the belief that there are labs running unfiltered output and that there are some secret demos only CEOs see.
The problem with adding more cores is that SRAM is the real bottleneck. Adding more cores means more cache.

Until someone figures out how to do 3D stackable SRAM similar to how SSDs work, SRAM will always consume most of the area on your chip.
Yep. I'm so tired of articles like this. C is not a memory safe language. Full stop. "Don't write bugs" or "remember to use these arcane extensions and macros every single time" do not make C memory safe. Doesn't even make your code memory safe, because people aren't perfect and will make mistakes and forget things.
I love how the page renders and then shits the bed when webgl is disabled.
Shiny new phones every year, bigger better faster shinier cars, Fancier meals, must have gadgets, keeping a keen eye on the Jones's, better fuller lawn without weeds, that paved driveway you've always wanted, a faster computer, better heating systems, brand name clothing...

When needs and wants get all mixed up, there is always more to be done.
I’ve been following them since they were giving promising lectures at MIT and I absolutely think they have the most solid approach! Tokamaks are well understood, they supposedly have the same plasma physics as ITER which has been heavily scrutinized and supported by work at JET, and their concept is simple - Tokamak but with very high field superconducting magnets using technology that wasn’t available when ITER was conceived, and apparently higher field strengths mean a smaller reactor for the same power gains. As a lay person the story is simple and that’s good! Then they demonstrated their magnets and got $2B in funding and now they’re deep in the construction phase for SPARC.

I encourage anyone curious to look up videos on SPARC on YouTube. It’s very encouraging! It seems honestly very reasonable that they will see sustained net energy gain for their entire power plant before 2030 (tho SPARC is still a demonstrator not designed for continuous service, so “sustained” means like one minute).

Here’s some videos:

8 years ago:

https://youtu.be/KkpqA8yG9T4

2 years ago:

https://youtu.be/KkpqA8yG9T4

Latest update posted yesterday:

https://youtu.be/w3Giq6NuPYs
> However, with solar and wind now far cheaper than nuclear

They are not cheaper. They produce very low-quality electricity. If you want them to provide any supply guarantees, their price skyrockets.
Yes, you have to analyze the embodied energy, but solar panels are energy positive within 1-2 years these days: https://www.quora.com/How-much-more-energy-do-solar-panels-p...

It's really a no-brainer up to a certain amount of your grid mix (and that amount can be quite high).
That's not really true. If you link a shared library that was compiled with -ffast-math, that will affect the entire program. https://moyix.blogspot.com/2022/09/someones-been-messing-wit...
James O’Keefe is behind this, who worked for Project Veritas, and was fired because he hired women to go on dates with people he wanted to target to get them to say things on hidden camera that suited his political opinions and that would be highly edited to paint the picture he wanted to present. In other words leading questions and flirtatious women and alcohol, pumped to get the desired video result scandal.

As you see in the interview he admits that one of the reasons Disney likes to represent diversity in its programming is for financial reasons. It appeals to a wider audience than just white men, and more sales benefits shareholders.

Surprised to see such a biased political piece here on HN to be honest. One for @dang to review I guess.
These kinds of TVs were under $2k a few years later. I had a Panasonic CT-34WX53 "Tau" display that I bought for $1600 in 2002.
There are many tools. Save-and-triage with Todoist, tag and search with Pocket, knowledge management tools galore.

I’m going to strawman a bit here, this might not be your issue, but I think it’s useful because this is a common pathology. The tool isn’t the problem. The problem is the underlying FOMO. You can’t read everything. You’re not going to read everything even if you bookmark it in the perfect app.

What if, instead of bookmarking, you scheduled time in your calendar for reading it to the extent you felt you’d extracted optimal value from that resource? How many hours a week would you dedicate? How many pages would that imply?—and how does that compare with your bookmarking appetite?

Anyway the better thing was here all along, it’s just only recently even enabled by multimodal retrieval: screenshots
> Proliferation will always be a risk with nuclear reactors.

Wasn't one of the promises of thorium reactors a much lower risk of non-proliferation? (Here's a fun question, can one make a pebble bed reactor design with pebbles designed such that if a ship sank, could a special magnetic sphere of a 'correct' size pull in the pebbles but keep a safe distance? IDK but trying to think outside the box here...)

I think it's worth remembering that for the sake of many ships, we do not need the power-density of an SXX or even an AXX per-se.

> As for hydrogen, I think ships are the killer app. High pressure tanks or cryogenic tanks benefit from the square-cube law. If you want them to be economical, they need to be really large. They will never make sense for cars, or even trucks, but they can make sense for trains, and certainly for ships.

The bigger the tank, the more rigorous the inspection has to be to avoid risks due to hydrogen embrittlement.

I'll admit, I'm -less- worried about that property on a train than a ship, but on a ship I think we'd first need to see good evidence we can maintain things of such size on ground safely.
There is enough stuff (goods) in both Texas and Oklahoma where going to war would make people there worse off.

If I can go to war with Oklahoma and get a 2nd/3rd car, when I already own a car, why would I risk losing my life? I can't drive 2 cars at once.
This was a fantastic episode of the Planet Money podcast; highly recommended
Time to load up toribash
Here in Mexico it's pretty normal for companies to require working mon to sat.
Texas tried waging war on other states before, and they were stopped by the Federal government wielding superior force.

You know that guy on five dollar bills? He was involved.
I hope whoever that is has a really fast Internet connection, because 400TB is too much to download in 30 days even with a 1Gbps connection.
I'll trust your analysis, but how do you explain the extremely high prices nowadays? I went to a beach yesterday, and they wanted 75 EUR to rent an umbrella and two beds for a few hours. That's three days' wages for a Greek, how is this a low-margin business? Opex is minimal (basically bar staff), Capex is minimal (a bunch of beds and umbrellas), where's all the money going?

Maybe it's only hotels that are low-margin, with Airbnb being a competitor, but otherwise everything is too expensive for any Greek to afford to go on vacation in our own country any more. The money must be going somewhere.
It’s a bit difficult to parse the analogy since you’re comparing something that has never been done (and is a notoriously difficult technology to crack) to something that had been done by many others, many times. But, even so, and despite the lack of specific information about the test/achievement, I have a feeling you’re over selling this by quite a bit. If you want to compare to spacex, I’d say it’s more like the first time they demonstrated that they could control a re-entering booster stage with grid fins—a notable step to booster reuse.
Research reveals toxic PFAS 'forever chemicals' accumulate in testes
Well its a good point, it's my feeling at the moment.

I think it would be interesting to do a systematic study of the time required for each.
Ammonia is simply nonsense. It's not going to happen for a variety of reasons. Liquid hydrogen is an even bigger nonsense.

Realistic fuels that are being used now:
1. Methanol.
2. Liquid methane.
Sounds like webhooks to me -- a use case Lambda excels at.
I wouldn't even say it's the core principle of software engineering. It's not really a "principle" anyway: legacy is just a reality that we have to deal with.

And a perfectly valid way of dealing with it might be to throw it away and rewrite it. That's not a choice to be taken lightly, to be sure, but it's complete nonsense for the article author to suggest it isn't an option.
It will have the same proliferation risks.

A fusion reactor is an extremely intense source of neutrons. The neutrons can be used to transmute elements, e.g. to transmute cheap natural uranium or depleted uranium into plutonium 239, which can be separated easily (in comparison with enriching uranium) and it can be used to make nuclear bombs.

Besides producing plutonium for nuclear bombs, it is also easy to use a fusion reactor to produce any kind of dangerous radioactive isotopes that could be used in terrorist activities.

So no, a fusion reactor that uses the fusion reactions that are possible today will not be any safer than a fission reactor, from the point of view of the proliferation risks.
ftp://ftp.funet.fi
Found it. https://x.com/vietyork/status/1803415496907432259
I have a lot of love for CF. But when I talked to someone who actually knows about the stuff, the business plan of all fusion startups is basically to sell know-how/IP, once a state actor decides to go at it.

That's a good plan, but ultimately, it's going to be a state backed (that's why I have "non-state backed ones" qualifier). CF is going to have a reactor with fusion with Q>1, but commercial product?

China is working on MSR. It has employs something like 700 Phds and 700 support personel for over a decade and has only recently made a research reactor. That's what I consider a serious effort (and that's for far simpler technology).

In my opinion, people underestimate how brutally hard it is to make new technology to work reliably. E.g. Superphenix, sodium cooled reactor had a capacity factor of 7.9% over a decade of production. That was after they had a demo reactor Phoenix with capacity factor 65%.
I imagine much of the weight is for the tube to be strong enough to hold the vacuum without shattering. As the screen area increases, you need stronger electron sources, and higher HT to get the electrons to the phosphor. I think small 14 inch trinitrons are already using 20-30kV so I imagine the power supply and associated HT stuff will be quite scary in these larger sets.

There are all sorts of complex magnet arrangements to tune the beam to stay in focus across the image area, i don't know how that will scale with size, but it's probably more of a complexity when assembling the sets to calibrate the tubes.
the KV-3000R is not the PWM-4300 though? And since the second but older post is from a deleted redditor it's unclear whether it's two or one.
Everything is relatively easy, relative to something out there.
Dance, Revolution
Plus, Rust is fairly new and those guys died a while ago.
-ffast-math affects other translation units too, because it introduces a global initialization that affects some CPU flags. You can't really contain it to a single TU.
The note on the primary author's name says 'We intend this essay as a preliminary “discussion draft” and expect to revise it significantly over time' so if you have cogent revisions to suggest, you should strongly consider sending them.
I'm not a Forth programmer, but I used to be a Sun sysadmin. From what I recall, the Forth code on a SPARCstation is interpreted and pretty slow.

These docs support that: https://docs.oracle.com/cd/E19455-01/816-1177-10/816-1177-10...

The system supports FCode, which is processor-independent byte code. This allows expansion devices (like a card or peripheral) to bring with them their own platform-independent device drivers, which is pretty cool. So you could make a disk controller card and then any system that you plug it into could boot off it, no matter the CPU architecture.

Anyway, the point is, since it was mainly used for booting and diagnostics, I don't think they put much effort into performance. For it to be an actually good Forth environment, I think you'd want to have some way to run Forth programs as native code, either by adding the option to JIT the FCode instead of interpreting it or by adding a compiler that compiles Forth source to native.

Also, I believe the old PowerPC Macs (like G3, G4, and G5) used Open Firmware, so if you wanted this Forth experience, you have that option in addition to Sun workstations.
Woebot, a Mental-Health Chatbot, Tries Out Generative AI
How expensive is the electricity in your area? I think here it is so cheap that might not be worth the installation cost (though that did drop a whole lot lately).
I never really played HHGG as a kid but started it up on my Apple //e using this wonderful disk image, which has a great front end for Infocom games, in case anyone hasn't seen it:

https://archive.org/details/PitchDark
(lectures about tone while getting personal and swearing and not asking any legible question)

Come with curiosity! Ex. "How would one be able to 100% confirm Waymo isn't just being live monitored and incremental way points set?"

(I'll leave it to you ask if you want, you seem upset and I worry you'll think the answer is obvious and that's not what you meant and I'm creating strawman. I want to deescalate and make you un-angry!)
What is the pattern to use on Lambda if you actually have to call out other services, which may, sometimes, take a long time to answer?
Do you make requests with a shorter timeout and have your Lambda fail when it triggers?
Do you delegate long calls to a non-Lambda service?
Erh. What? I bicycled across America in 1984. Never seen in any other country that a food store can be open at midnight.

As regards 1979 Finland, this was far after beforementioned reforms. I remember I almost died
on a 100km sunday trip in 1966. Not even kiosks were open in Porvoo. I drank water from a ditch and got instant diarré. Fainted couple of times, but some trucker eventually saved me.
This was my favourite textbook of my entire undergrad CS studies. I still have it on my shelf to this day. I've never gone deep into networking but the broad knowledge has stayed with me and comes in useful again and again. I would say it sets me apart from many other engineers.