MurphyA/hacker-news huggingface dataset:
by sharkjacobs | 2026-02-20 06:49:13+00:00
Urban trees in Montreal (and presumably other cities) only survive through the summer because of the water they get from leaky pipes.

> Maple trees drink about 50 litres of water every day, and it seems some of their hydration is coming from Montreal’s crumbling infrastructure.

https://www.ctvnews.ca/montreal/article/montreals-leaky-pipe...
by Corrado | 2026-02-20 06:49:42+00:00
Thank you for reminding me of Y2K! It's the perfect example of what happens when you forget about the people keeping things together.

My team and I worked really hard for several years to make sure that Y2K didn't have any effect, or at least a dramatically downsized one. It worked but I did hear from several people that they were annoyed that we spent so much money, time, and resources on something that turned out to be "not that big of a deal". Arrrgggghh!!
by jwrallie | 2026-02-20 06:49:45+00:00
I used it once or twice to open an existing .step file just to know if I was exporting it correctly from KiCad.

Speaking of KiCad, I am convincing lots of people to move from EAGLE to it now that EAGLE is about to be killed by AutoDesk, and everyone seem to be having a good time.

I am hoping FreeCAD can become good to the point I can convince people to move to it too.
by abraae | 2026-02-20 06:49:49+00:00
I feel CAD is one area where open source does not shine. The problem space is too complex, and the UIs demand continuous, thoughtful development driven from customer demands rather than developers scratching their own itches.

Not least there are free (as in beer) solutions available, like fusion 360, that are enormously capable.

Theres certainly a place for open source, and openscad would be a great tool to reach for for procedurally generated models. But in all honesty, Freecad doesn't compare well to the professional tools in this space - not in the way that say, gimp does to its commercial competitors.
by gauravvij137 | 2026-02-20 06:50:54+00:00
Working with embeddings (RAG, semantic search, clustering, recommendations, etc.), means:
- Generate embeddings
- Compute cosine similarity
- Run retrieval
- Hope it "works"

But then I stumbled upon the issue of not being able to determine why my RAG responses felt off, retrieval quality being inconsistent and clustering results looked weird.

Debugging embeddings was painful.

To solve this issue, we built this Embedding evaluation CLI tool to audit embedding spaces, not just generate them.

Instead of guessing whether your vectors make sense, it:
- Detects semantic outliers
- Identifies cluster inconsistencies
- Flags global embedding collapse
- Highlights ambiguous boundary tokens
- Generates heatmaps and cluster visualizations
- Produces structured reports (JSON / Markdown)

Checkout the tool and feel free to share your feedback:
https://github.com/dakshjain-1616/Embedding-Evaluator

This is especially useful for:
- RAG pipelines
- Vector DB systems
- Semantic search products
- Embedding model comparisons
- Fine-tuning experiments

It surfaces structural problems in the geometry of your embeddings before they break your system downstream.
by ruszki | 2026-02-20 06:52:26+00:00
There is a difference when you simply lazy, or don’t care enough to understand the information in front of you, or when they don’t provide those information. You’re right, most people don’t care enough, but this is a huge difference. And west is magnitudes better with this.

Also I’m living in the EU. If I want I can get all of the information which you asked for.

But on the other hand, companies purposefully make those information as obscure as possible. Also, I’m not sure that people would care even if it had been clear. People love free stuffs.
by Grisu_FTP | 2026-02-20 06:53:10+00:00
This is why im always feeling bad when putting mobile versions of games i love made by netease on my phone.
Where i felt especially bad was Dead by Daylight mobile.
Persona 5X is not made by NetEase but i still dont have a good feeling about them.

I would think they would be more restricted in what they can collect on a Phone OS (android in my case) but i still wonder if there is some way to fully isolate shady apps.
by laserbeam | 2026-02-20 06:53:12+00:00
I would say the complexity of implementing defer yourself is a bit annoying for C. However defer itself, as a language feature in a C standard is pretty reasonable. It’s a very straightforward concept and fits well within the scope of C, just as it fit within the scope of zig. As long as it’s the zig defer, not the golang one…

I would not introduce zig’s errdeferr though. That one would need additional semantics changes in C to express errors.
by stopbulying | 2026-02-20 06:53:12+00:00
Can anyone show evidence of other executives doing this sort of thing? In the US?

> Official Portraits: The Government Publishing Office (GPO) typically prints approximately 65,000 to 100,000 small portraits (ranging from 8x10 to 20x24 inches) to be displayed inside more than 1,600 federal buildings. No previous administration in the modern era—including those of Biden, Obama, or Bush—has commissioned massive exterior banners featuring the president’s face
by argee | 2026-02-20 06:54:23+00:00
I have RSI issues with my wrists. It really helps to have split ortholinear keyboards, if only because I have trained on them specifically to type without moving my wrists whatsoever (using a miryoku layout), while old habits persist on a standard QWERTY TKL. Of course, it also helps to put on really soft-springed keys (like kailh silver) — it's self evident that softer keys are easier to press.

I had initially thought that it'd be hard to use both kinds of keyboards at once, but my muscle memory for either seems unaffected when I use the other one.
by menaerus | 2026-02-20 06:55:33+00:00
It wrote a solution by itself, from the scratch, with dozens of little type traits, just as I would do. Really clean code. And the problem at hand is not the mathematical, linear algebra one. I gave that example just for easier understanding of the problem at hand. The problem is actually about the high-performance serialization. Finally, I instructed it to build complex test cases with multiple levels of nested computations to really check whether we are making any copies or not. Did it in a breeze.

Not sure about the other models. I'd guess that Claude would do equally good but I don't have the subscription for other models so I can't really compare. I for sure know that the ones from the free-tier are not worth spending time with for tasks like this. I use them mostly for one-shot questions.

So yeah, I think I have a pretty good experience. Not perfect definitely but still looks like a SF to me. Even to a highly trained C++ expert it would take probably like a day to build something like this. And most C++ folks wouldn't even know how to build this.
by jaynamburi | 2026-02-20 06:55:38+00:00
The AI revolution has created a thermal management crisis. GPU power densities have increased dramatically, and the physics are clear: above 50-100kW per rack, air cooling fails.
1,000W
Per Blackwell Chip

132kW
Current Rack Density

240kW
Expected 2026

50-100kW
Air Cooling Limit

The Physics Problem
NVIDIA's latest Blackwell GPUs generate up to 1,000 watts per chip - over three times more heat than GPUs from just seven years ago. Traditional air cooling physically cannot dissipate heat at these densities. Above 50-100kW per rack, liquid cooling isn't optional it's physics.

The Power Density Evolution
Understanding how we got here helps contextualize the infrastructure challenge. In less than a decade, rack power density has increased nearly 10x for AI workloads.

2017
15 kW per rack
Standard enterprise workloads

2024
40-60 kW per rack
AI workloads with H100 GPUs

2025
132 kW per rack
NVIDIA GB200 NVL72 systems

2026
240 kW per rack
Next-generation systems (expected)

Why Air Cooling Fails
Air has fundamental limitations as a heat transfer medium. Its thermal conductivity is roughly 25 times lower than water. At densities above 50-100kW per rack, you simply cannot move enough air through the system to dissipate heat effectively.

Critical Threshold
Traditional air cooling cannot dissipate heat at current GPU densities. Air cooling fails above 50-100kW per rack. Current GB200 systems operate at 132kW. Next-generation systems will push to 240kW.

The implications are straightforward: any facility planning to deploy current-generation or next-generation GPU infrastructure must plan for liquid cooling. This is not a feature preference - it's a physical requirement.

Liquid Cooling Approaches
Three primary approaches address high-density cooling requirements:

Rear-Door Heat Exchangers (RDHx)
Capacity: 30-50 kW per rack

Retrofit solution for existing facilities. Captures heat at the rack exhaust. Suitable for moderate density increases but insufficient for current GPU requirements.

Direct-to-Chip Liquid Cooling
Capacity: 100-200+ kW per rack

Cold plates directly attached to CPU/GPU surfaces. Most efficient heat capture at the source. Required for high-density AI workloads. This is what NVIDIA recommends for GB200 deployments.

Immersion Cooling
Capacity: 200+ kW per rack

Servers fully submerged in dielectric fluid. Highest density support possible. Requires significant operational changes and specialized equipment.

What This Means for Planning
If you're planning AI infrastructure for 2026-2027, cooling strategy is not optional:

GPU Generation Rack Density Cooling Requirement
H100/H200 40-80 kW High-density air may work
GB200 (Blackwell) 132 kW Liquid cooling required
Next-gen (2026+) 240 kW Advanced liquid cooling mandatory
by stopbulying | 2026-02-20 06:55:44+00:00
"VERIFY: Are government agencies required to display portraits of current presidents?" (2018) https://www.khou.com/article/news/local/verify/verify-are-go... :

> The simple answer is no, according to the Office of Strategic Communication for GSA, which is an independent agency of the U.S. government that helps manage federal agencies.

> It’s response: “There is no regulation that specifies that federal agencies must display portraits of the sitting President and Vice President in the space they occupy. However, GSA displays portraits of the President and Vice President in the public areas of the buildings that GSA owns and operates, including locations leased by GSA, where the building is fully occupied by the federal government.”
by Herring | 2026-02-20 06:57:23+00:00
It’s more than that..

https://data.worldhappiness.report/chart

Surveys show the whole US is gradually becoming more and more unhappy. It’s mainly because income isn’t keeping up with rent/mortgages/healthcare/inflation etc. But there’s no collective will to solve it, the solutions are all individual, like “work harder”. Lots of people are already working 2 jobs.

It sucks to live in a society that doesn’t care about you, and many are angry, but they don’t know what to do because they were trained to hate socialism.
by otherme123 | 2026-02-20 06:57:30+00:00
My personal experience after switching to Colemak is mostly neutral. Speed is about the same after some training, around 70 WPM. Comfort, maybe improved a bit, but no life changing.

Some people claim that they went from 60 WPM on Qwerty to over 100 WPM on some other newly designed layout, but my experience is clear: if you do it for the speed you will be disappointed.
by fyredge | 2026-02-20 06:57:49+00:00
The right moves are state control, long horizon policies and regulations, all things the US willingly throw out in the name of freedom. For all its restrictions on human rights and personal freedom, the Chinese people and government have a mutual understanding. As long as the government better the lives of the people, they will be given free reign to do as they wish. This gives the government a long leash to enact far sighted policies to improve themselves. On the other hand, US politics is based on mistrust and the default assumption that anyone with power will abuse it, culminating in the "small government" rhetoric. Idealistic at best, but entirely crippling in the face of powerful organisations and corporations.
by omkar-foss | 2026-02-20 06:57:50+00:00
What immediately stood out to me from this article: "When we taste wine, our orbitofrontal cortex integrates sensory information with memory and emotion; it's why a particular bottle might remind us of our grandmother's kitchen or that study-abroad summer in Tuscany. This neural complexity is what makes wine special, and it's also what makes AI's role in the industry controversial."
by kantord | 2026-02-20 06:58:14+00:00
I only used it for some hobby modeling, but I have to say it's fantastic and very impressive.

It seems like it's fully community-maintained, there is no big company or foundation behind it. Honestly it's hard to believe!

There was just one major problem, the infamous "topological naming problem" which caused issues downstream is you edited a non-leaf node. That was pretty frustrating to deal with, but in later releases they fixed it I think. (Have not tried it since because I didn't have anything to model)
by gucci-on-fleek | 2026-02-20 06:58:48+00:00
> the UIs demand continuous, thoughtful development

The current AutoCAD GUI is essentially unchanged from the 80s, so this shouldn't really be much of an issue. They added a ribbon probably 15 years ago at this point, but I can't think of any other major/recent changes. (But maybe there are some changes that I'm not familiar with, since I don't use AutoCAD very often and only started using it relatively recently)
by mkozlows | 2026-02-20 06:59:52+00:00
Conversely, I'm totally sold on it. The shoulder-hunching thing is so real.

The thing I thought was ergonomic BS was the benefits of columnar/ortho layouts; everyone talked about how your fingers just moved vertically and it was so much better for them, and I rolled my eyes. But dang if it hasn't proved to be meaningfully true for me, too -- when I have to type on a legacy keyboard, I can clearly feel the pain in my fingers. (The disclaimer here is that my fingers are totally screwed up; if you don't feel pain normally, this probably matters less.)
by powersnail | 2026-02-20 07:01:34+00:00
Whenever split keyboards come up, ulnar deviation is mentioned, and non-split keyboard users are depicted to be using the keyboard like this (image from the post):

https://www.justinmklam.com/posts/2026/02/beginners-guide-sp...

I don't know if it's just me, but I don't use the keyboard like that. There is no need to squeeze your hands in front of the keyboard. Just naturally bring your hands in front of chest, the same as when you are reading a book or writing notes with a pen. No twisted wrists. No ulnar deviation.

Admittedly, I've never looked at a significant number of people typing on a non-split keyboard, so I don't have the data to refute the need of this invention. I just feel like the natural posture already doesn't have the problem of ulnar deviation.
by nothrabannosir | 2026-02-20 07:01:55+00:00
Couldn't disagree more.

I have written both TF and then CDKTF extensively (!), and I am absolutely never going back to raw TF. TF vs CDKTF isn't declarative vs imperative, it's "anemic untyped slow feedback mess" vs "strong typesystem, expressive builtins and LSP". You can build things in CDKTF that are humanly intractable in raw TF and it requires far less discipline, not more, to keep it from becoming an unmaintainable mess. Having a typechecker for your providers is a "cannot unsee" experience. As is being able to use for loops and defining functions.

That being said, would I have preferred a CDKTF in Haskell, or a typed Nix dialect? Hell yes. CDKTF was awful, it was just the least bad thing around. Just like TF itself, in a way.

But I have little problems with HCL as a compilation target. Rich ecosystem and the abstractions seem sensible. Maybe that's Stockholm syndrome? Ironically, CDKTF has made me stop hating TF :)

Now that Hashicorp put the kibosh on CDKTF though, the question is: where next...
by robocat | 2026-02-20 07:02:12+00:00
Plenty of people say that - but in my experience people often change their minds when faced with hard choices.

Fortunately in New Zealand we have https://en.wikipedia.org/wiki/End_of_Life_Choice_Act_2019 if you've got a terminal illness. We also have Advance Directives for making your own choices about your health should your health go South.

I know nothing about the Netherlands.
by biggerben | 2026-02-20 07:03:23+00:00
Totally agree. Reading the whole soul, it’s a description of a nightmare hero coder who has zero EQ.

> But I think the most remarkable thing about this document is how unremarkable it is. Usually getting an AI to act badly requires extensive “jailbreaking” to get around safety guardrails.

Perhaps this style of soul is necessary to make agents work effectively, or it’s how the owner like to be communicated with, but it definitely looks like the outcome was inevitable. What kind of guardrails does the author think would prevent this? “Don’t be evil”?
by servo_sausage | 2026-02-20 07:05:26+00:00
If I'm publishing something, I want maximum revenue.

If I can guarantee repeat customers then I can make the reader the sole focus, but if I still have to maximise based on capricious trends and search indexing, then I'll probably maximse the payment, the adds, and sell your data as well.

Subscription services are probably the only way, unless we see a consolidation of hosts with a consistent brand and quality, enough to trust a micro transaction will get something of the quality I expect.
by vx_r | 2026-02-20 07:05:36+00:00
Clearly a lot of people doesn't get the multi-layered political play that is going on. I am not going to say much because people sometimes do not want to know the truth. Simply look at how North Korea and China friendly current government is. The both political parties are a joke at the moment. Do you guys know that North Korea's actual name includes 'Democratic' in it? That is what is going on.
by mesk | 2026-02-20 07:05:39+00:00
Cool, so the US students will be able to read school banned books ?
Or US state banned research papers ?
Or US state banned historic books or photos ?
Or soft banned late night shows - so Colbert will continue ? Kimmel ?
Or domains of shadow book libraries banned by FBI/corporate requests ?
And it will circumvent geoblocking enforced mostly by US companies ?

Cool, such a heroic effort to remove censorship from theinternet that US enforces on us :-)

Ooh, almost forgotten there also some porn and media pirating sites blocked in the EU that will surely get also unblocked. But who cares, there are thousands of theese....

Btw. did Putin and Xi allowed this ? Or their `free` internet will remain free as before.
by lyall | 2026-02-20 07:06:44+00:00
I don’t have a way to check built in right now. But you can look at the 2020 data here: https://raw.githubusercontent.com/hackerb9/ssa-baby-names/re...

If your name is on there it’s probably included in namex.

I could also manually check the data of course but that would require knowing your name :)
by dang | 2026-02-20 07:07:33+00:00
The sequence in reverse order - am I missing any?

OpenClaw is dangerous - https://news.ycombinator.com/item?id=47064470 - Feb 2026 (93 comments)

An AI Agent Published a Hit Piece on Me – Forensics and More Fallout - https://news.ycombinator.com/item?id=47051956 - Feb 2026 (80 comments)

Editor's Note: Retraction of article containing fabricated quotations - https://news.ycombinator.com/item?id=47026071 - Feb 2026 (205 comments)

An AI agent published a hit piece on me – more things have happened - https://news.ycombinator.com/item?id=47009949 - Feb 2026 (620 comments)

AI Bot crabby-rathbun is still going - https://news.ycombinator.com/item?id=47008617 - Feb 2026 (30 comments)

The "AI agent hit piece" situation clarifies how dumb we are acting - https://news.ycombinator.com/item?id=47006843 - Feb 2026 (125 comments)

An AI agent published a hit piece on me - https://news.ycombinator.com/item?id=46990729 - Feb 2026 (950 comments)

AI agent opens a PR write a blogpost to shames the maintainer who closes it - https://news.ycombinator.com/item?id=46987559 - Feb 2026 (750 comments)
by tmustier | 2026-02-20 07:08:55+00:00
I’m building it

It’s got various things to clean up but the idea is to bring the spirit of pi (an OSS coding agent that can extend itself and gives you maximal freedom) to excel.

So it has things that claude for excel will never have - like tmux, the ability to use any model provider that works with pi, and of course extensions

built in lets you play snake while your agent works; I added some personal ones for slash commands, auto-pulling fx, ..

And nice touches like user and file agents.md

still quite a lot of work I need to juggle with my new job, but I’ve been using it all week with decent results
by sgt | 2026-02-20 07:09:41+00:00
Web UI's for power tools are generally not a good idea. A browser will always have limitations and not quite reach the level of e.g. a TUI. On the other hand, TUI's as you point out has some serious limitations on its own.

So the answer is native app - I think what the world need is a super fast native spreadsheet that is NOT Excel. Kinda like a combination of Excel, TUI, and MS Access in one. Fast like Numbers.app, not sluggish like Excel is.

I'd use that. But it needs to have a keyboard centric operation, and be faster and a very solid, near industrial design, no "the latest flavor of someone's Figma design". I'm having a tough time explaining this.

What do you guys think?
by qsera | 2026-02-20 07:10:40+00:00
>pretty reasonable

It starts out small. Then before you know the language is total shit. Python is a good example.

I am observing a very distinguishable phenomenon when internet makes very shallow ideas mainstream and ruin many many good things that stood the test of time.

I am not saying this is one of those instances, but what the parent comment makes sense to me. You can see another comment who now wants to go further and want destructors in C. Because of internet, such voices can now reach out to each other, gather and cause a change. But before, such voices would have to go through a lot of sensible heads before they would be able to reach each other. In other words, bad ideas got snuffed early before internet, but now they go mainstream easily.

So you see, it starts out slow, but then more and more stuff gets added which diverges more and more from the point.
by pmarreck | 2026-02-20 07:12:07+00:00
So the perverse "logic" here is basically that since very successful products sometimes get enshittified, there is no point to seeking ANY success?

Do you realize how out-of-touch with reality this sounds? For every $45M Tailscale there's a hundred companies you likely never heard of making respectable but not-very-excessive money in niches here and there. For example, I have a high school friend who owns one: https://speedify.com Thing is, you can't have one without the other. Hell, that's the kind of success (as in "moderate") I'm actually targeting with my work. Which is why comments like this irritate me.

Go make something that other people want and then try to live off it. Offering all of it for free won't cut it, because we don't live in a communist dictatorship (not that any of them might approve you spending your time on your pie-in-the-sky "contributory idea" in the first place).

By the way, in working on the thing I want to sell, I've made a number of offshoot projects open source as a side effect. Check my github, it's never been more active.