skysight-inc/HackerNews huggingface dataset:
One case I benchmarked was Bernstein/Bézier and Lagrange element evaluation. This is: given a degree d triangle or tetrahedron, given some barycentric coordinates, get the physical coordinate and the Jacobian matrix of the mapping.

Degree 2, Lagrange:

- runtime: 3.6M/s
- Hana: 16.2M/s
- Hardcoded: 37.7M/s

Degree 3, Lagrange: 2.6M/s, 6.4M/s, 13.4M/s (same order).

"Runtime" here means everything is done using runtime loops, "Hana" using Boost Hana to make loops compile-time and use some constexpr ordering arrays, "hardcoded" is a very Fortran-looking function with all hardcoded indices and operations all unrolled.

As you see, using Boost Hana does bring about some improvement, but there is still a factor 2x between that and hardcoded. This is all compiled with Release optimization flags. Technically, the Hana implementation is doing the same operations in the same order as the hardcoded version, all indices known at compile time, which is why I say there must be some runtime overhead to using hana::while.

In the case of Bernstein elements, the best solution is to use de Casteljau's recursive algorithm using templates (10x to 15x speedup to runtime recursive depending on degree). But not everything recasts itself nicely as a recursive algorithm, or I didn't find the way for Lagrange anyways. I did enable flto as, from my understanding (looking at call stacks), hana::while creates lambda functions, so perhaps a simple function optimization becomes a cross-unit affair if it calls hana::while. (speculating)

Similar results to compute Bernstein coefficients of the Jacobian matrix determinant of a Q2 tetrahedron, factor 5x from "runtime" to "hana" (only difference is for loops become hana::whiles), factor 3x from "hana" to "hardcoded" (the loops are unrolled). So a factor 15x between naive C++ and code generated files. In the case of this function in particular, we have 4 nested loops, it's branching hell where continues are hit very often.
Logic-Based Benders Decomposition: Theory and Applications
>Gemini also shows it's work and it seems to do a few orders of magnitude more calculating then the elegant answer given on reddit.

I don't think Gemini does an unnecessary amount of computation, it's just more verbose. This is typical of reasoning models, almost every step is necessary but many would not be written down by a human.
Pretty cool. Though I was a bit sad that preview does not work on Signal.
I'm betting that Goldberg realized, once it was confirmed real, that his only feasible defense was exiting the chat and going public immediately. Otherwise, someone notices he's there, and he's arrested by ICE and disappeared to El Salvador, or worse.

In many ways, being a public enemy of the Trump Admin is the safest enemy to be.
M1 Max MacBook Pro and no issues, fwiw. Just to help provide data.
This is neat, and more people should be doing things like this. For what it's worth, we use (and like) Teleport, which does certificate-based SSH authentication; an SSO auth gets you a short-lived certificate. It also has the benefits of access control and (most importantly) audit logs; a generic reliable audit log for SSH sessions is a powerful tool to have for compliance stuff, since it transitively gives you an audit log for your CLI tools as well.
Law enforcement was paranoid about making sure it only went to criminals. It was producing so much intelligence, any non-criminal usage wasted lots of time.

The fact that it was really only criminals using it was the big selling point.
You've stepped way out of the discussion we were having and are now engaging in sanctimonious grandstanding.

> Your inability to grasp this is disturbing and should come across as some sort of profound warning to everyone.

Way out of line, dude. Now you're insulting my ability to understand things? You think I don't know about all that? Obviously there are plenty of people who don't deserve credit, but there are also plenty who do. I take pride in having an exceptional credit score.

I'd get those wings. And I'd have a 'profound' time sharing them with friends and family making memories.
That's wrong. From player 1's perspective {25 20 45} is entirely consistent with the calls made in the first three rounds.
Wait, is m slope? I learned it with k (for coefficient) for the slope, and m for the intercept (I don't know why m in that case though).
We just recently had COVID which was likely bioengineered (as the lab leak is now "officially" considered a plausible explanation)
This has been in GH's docs on security hardening for a while[0], and I can't recall which tool it was, but I have seen reports that warn when not using SHAs. Pretty sure there was a linter that would even show the warning in my neovim setup that uses some kind of gh action LSP, but it has been a minute.

[0]: https://docs.github.com/en/actions/security-for-github-actio...
Heartbleed was a much more significant issue than this ingress-nginx thing.
The Atlantic is not a typical publication. It is run by serious people.
> Introducing 4o Image Generation: [...] our most advanced image generator yet

Then google:

> Gemini 2.5: Our most intelligent AI model

> Introducing Gemini 2.0 | Our most capable AI model yet

I could go on forever. I hope this trend dies and apple starts using something effective so all the other companies can start copying a new lexicon.
I have naturally wide feet, and it's no advantage for any sport requiring footwear. Soccer shoes, climbing shoes, ice skates, snowboard boots, the list goes on, mostly manufactured for average to skinny sized feet.
By the revealed content of the chat, Trump wasn't aware of the decision his subordinates made. They just intuited Trump's wishes and dropped bombs based on that.
It seems pretty good at it. The hair on the boy is messed up, but still decent.

"A boy eating a sandwhich"

https://www.svgviewer.dev/s/VhcGxnIR

"A multimeter"

https://www.svgviewer.dev/s/N5Dzrmyt
The ChatGPT examples don't look like the new Image Gen model yet. The text on the dog collar isn't very good.
> Smartphone ...

It should have ended there. Smartphones are not secure and you must not trust them.
You're supposed to generate images, stupid /s
Google unveils a next-gen family of AI reasoning models
Yes. I can break down plastics that way, using ordinary tap water.

Actually, the tap water is optional.

And instead of monomers, the end product is carbon - which is even more recyclable!
Answered above. :shrug:
Very cool, though it doesn't seem to work on Firefox on Android - I had to use Chrome to get it to work. Dunno what API it's using, but worth mentioning.
Air conditioning and TVs are the answer to this unfortunate problem.
I have bad news for you if you think non paywalled / non phone# required discord communities are immune to AI scraping, especially as it costs less than hammering traditional websites as the push-on-change event is done for you in real time chat contexts.

Especially as the company archives all those chats (not sure how long) and is small enough that a billion dollar "data sharing" agreement would be a very inticing offer.

If there isn't a significant barrier to access, it's being scraped. And if that barrier is money, it's being scraped but less often.
I suspect you can prompt aspect ratios.
I used to live in a suburb. I met people the same way you meet people anywhere: common interests.

A dozen or so people with dogs met at the park every day. We knew each other, watched each other's houses/pets on vacation, and sometimes did dinner or BBQs.

A few people organized a DnD group after advertising on nextdoor (which is a cesspool but only 70%).

Of course those with kids the same age often knew each other because of school or activities.

The neighborhood park had a system of "pea patches" where you could grow some stuff next to your neighbors.

There's nothing that unique all in all about this space other than there was a "third place" we all had built and took care of (the park was originally supposed to be a school that never got built so the community got it to become a park but at least half the work came from the community. The county provided some matching work).

The weird thing is people are people no matter where they are, mostly. And if you are lonely, you can go fix it.

Lots of people move from somewhere they hate so somewhere they think will solve all their problems. And they are right. Or they move from somewhere they love to somewhere that they know will be terrible. And they are right. It seems like whether you think your neighborhood is great or terrible, you're not right.
See Surface Tension by James Blish.

https://metallicman.com/surface-tension-by-jamesblish-free-f...

https://metallicman.com/wp-content/uploads/2022/12/surface-t...
Buttery Males!
This article appears to be in response to the linked Tj-actions/changed-files GitHub Action Compromised – used by over 23K repos discussed at https://news.ycombinator.com/item?id=43367987 10 days ago; not a duplicate as it discusses a detection tool but perhaps it rhymes.
> further discredit the idea of impeachment

Will it? If done correctly by the Democrats (and this is a big if), it can educate people on the current situation. A big problem right now is that a lot of people aren't fully aware how fucked up and how dangerous Trump and his cronies are.
Shortened commit SHAs are actually not supported by Actions; if you try, you get

"Unable to resolve action `actions/checkout@11bd719`, the provided ref `11bd719` is the shortened version of a commit SHA, which is not supported. Please use the full commit SHA `11bd71901bbe5b1630ceea73d27597364c9af683` instead."
Apparently it rolls out today to Plus (which I have). I followed the "Try in ChatGPT" link at the top of the post
Is that your lived experience of the suburbs, or just what you've been led to believe on online forums filled with both a) city dwellers, b) angsty teens?

As someone who lives in the suburbs it threw me because it's so rare for anyone to acknowledge any positive of the suburbs. The suburbs are always some lifeless dystopia where we all drink away our days and wish we could visit the bodega and get a fresh baguette or something.

Here in suburbia in an exurb, everyone knows each other. We have regular street parties. All of the kids play games together frequently.
Honestly someone should scrape the algebraic topology Discord to AI it'll be a nice training set
I don't think it's available to everyone yet on 4o. Just like you I am getting the same "cartoony" styling and poor text generation.

Might take a day or two before it's available in general.
FWIW, this has been my experience as well. When I lived in poor neighborhoods, yeah, we had more property crime. We also had a tremendous sense of community; I knew everyone, they knew me, food & favors were traded happily. The block parties we had during the summer were tremendous amounts of fun.

Meanwhile, the more wealthy neighborhoods are full of busybodies sniffing around for the slightest HOA infraction, and high-anxiety individuals reflecting and amplifying each other's tensions. Each home is a fortress unto itself. I feel pretty lucky to be in the middle, where we don't have as much crime as the poorer areas, but we still know one another, and still trade food on the holidays.
Based on what we now know, this simply isn't an accurate assessment.
Travelling at c is UB.
Granted I’m hazy on the details of the story, but I did not recall a service fee. Just a few hundred dollars premium Android phone geared towards secure privacy. Sure, there was a nudge and a wink towards crime, but I could easily see it appealing to a civil protestor, journalist, or philanderer.
Oh yes, I remember having this issue many times before. :D
not in the late 2010s when this was happening.
This is why you have a constitution, codified laws, judicial system, separation of powers, etc. We're just learning now none of these things are worth the paper they're written on.
the self-suffiency is clever: players responses filling the survey. how do you do the matching of guesses to the answer board?
I used to work on an open source project at Netflix. I had a coworker who was hired directly because of her open source contributions.
The Knowledge was nice, but I found Ryan North's book to be much better, at least as a book. Far funnier, with a very nice through line of laughing at how slow humans were to come up with some pretty obvious ideas. (Often, humanity invented something as a toy before realizing, a hundred+ years later, that it could be used for real.)
Thanks! I just tried it out on Signal with a new note and it does work. The image is not as large as the WhatsApp preview though.

I accidentally linked to a specific note at the top which I guess Cloudflare is struggling to preview due to traffic.
> I think you might have missed OPs point being about acoustically sending data rather than using bluetooth/WiFi

I did! Thanks.
In countries where people are free (almost everywhere except the USA) you can simply open a coffee shop in a "residential district". You have these ridiculous zoning laws so at most you can drive to a Starbucks.
The journal article is open access. https://pubs.rsc.org/en/content/articlelanding/2025/gc/d4gc0...

> Catalytic amounts of AC/MoO2 selectively convert waste PET into its monomer, terephthalic acid (TPA), within 4 h at 265 °C with yields as high as 94% under 1 atm air.

I'm not a chemist so don't know if you can find a way to calculate the cost, but the authors claim that it's cheaper than current methods.

The bigger deal imo is that it recovers PET monomers from mixed plastics, which means avoiding manufacturing more plastic.
It's not an insult any more than "rapist" or "fraudster" is. These have all factual definitions, and Trump meets all of them.
Many Americans still think of cities as modernist concrete, interstate exits and parking lots. In this imagination, social trust is eroded by homelessness, drug addicts and variety of crimes endemic to inner cities. Unfortunately, cities that were razed for cars fit some of these stereotypes.

In fact, parts of SF match the description too. This story would have unfolded differently in SOMA. Even in safe neighborhoods, (eg: Mission Bay, Rincon Hill) large towers, 5 lane roads and 35+ mph thru-traffic discourage neighborhood vibes.

> has some truth to it in both cases, but amounts to uncalled-for negativity

I disagree. This isn't a case of 'both sides'.

Cars destroyed American cities. Then Americans moved to gated suburbs that did everything in their power to limit through traffic and therefore the destructive onslaught of cars. Suburban residents demand easy access to the city by car, but reject the car in their own neighborhood. Suburbs want to have their cake and eat it too, at the expense of city residents. In contrast, cities do not impose their wants or needs onto suburbs. The resentment by city dwellers towards suburbanites is justified.

Fortunately some cities escaped razing. Boston, NYC, DC & SF have many neighborhoods that enable wonderful stories such as this.
If you lose your root CA certificate you sure are done for too.

Is it better than passwords? 100% - is it perfect? It does not have to be for a lot of use cases.
You'd think so, but both Google's AI Overview and Bing's CoPilot output wrong answers.

Google spits out: "The product of the three numbers is 10,225 (65 * 20 * 8). The three numbers are 65, 20, and 8."

Whoa. Math is not AI's strong suit...

Bing spits out: "The solution to the three people in a circle puzzle is that all three people are wearing red hats."

Hats???

Same text was used for both prompts (all the text after 'For those curious the riddle is:' in the GP comment), so Bing just goes off the rails.
There's no major announcement here (compared to what Airbus has been saying for the last few years). Airbus continues to believe that propfans/open rotor designs are worth testing for their next generation design.

As noted in the article, such a design would likely require rear-fuselage mounted engines, or high wings (either shoulder mounted or gull shaped)

What seems interesting to me is that Boeing's "next gen" bet seems to revolve around truss braced wings, which seem to also require shoulder mounted wings. I wonder how well these two features would interact with each other.
I think google is digging a hole for themselves by making their lightweight models be the most used model. Regardless of what their heavy weight models can do, people will naturally associate them with their search model or assistant model.
Great song though I’m surprised you didn’t immediately recognise her voice in it.

There’s a few an interesting tracks on that album. I quite liked “Death is not the end”, which I think was the last track on Murder Ballards and also features Kylie (amongst a few others).
Lost manuscript of Merlin and King Arthur hidden inside another book
C is for cookies, and that's good enough for me!
Hey, thanks for sharing. It looks neat! Here's some (unstructured, rushed) feedback:

Consider adding some PWA metadata (manifest) so there's a bit more space when the app is added to the home screen.

Are you using perfect-freehand? If so, you might wanna give Steve Ruiz a shoutout!

The latency is not bad (iOS Safari) to be fair. I'd check how this works with the Apple Pencil though (including the additional APIs and pen properties it opens)

I have giant fingers, so this is nice for doodles, but writing gets frustrating. a basic zoom would fix that (problem: keeping the UI non obtrusive).

Consider adding colour (even a pre-defined palette to keep this super simple, say 3-4 colours). I got some fun creations from people who played with a similar project (https://lines.potato.horse), largely because they had just the right amount of creative control.

Also, consider adding an OLED-friendly colour scheme (with perfect blacks #000). Some inspiration: https://untested.sonnet.io/notes/night-rider/ and https://untested.sonnet.io/notes/dark-mode-articles/

(100% yak shave here, so not important) but: I'd check if the note content could be shared with the link (e.g. via data URIs) (mostly for fun)

Ah, finally, make it plomk like mmm.page or potato.horse (disable silent mode and click on the nav)! THIS IS VERY IMPORTANT
Other models aren't able to solve it so there's something else happening besides it being in the training data. You can also vary the problem and give it a number like 85 instead of 65 and Gemini is still able to properly reason through the problem
Why do you want hackable brains?
It was only available from a salesman, you couldn't order it via a website. The salesmen knew their clients, and knew they were criminals.

The sales chain was what made the operation so effective. The only people who had the phones were the ones the FBI wanted with the phones.
Is this the same for their gemini-2.0-flash-exp-image-generation model?
I also tried one-shot.

https://g.co/gemini/share/badd00a824d2
It's rolling out to everyone starting today but i'm not sure if everyone has it yet.
Does it generate top down for you (picture goes from mostly blurry to clear starting from the top) like in their presentation ?
NIST Atomic Timekeeping: Plans to Cut Team Responsible
> Turns out US military strategy is the same as me and my mates setting up a bar date.

Typically these positions are filled by highly qualified people with decades of experience.

This administration is not typical. They deliberately chose inexperienced people who would be loyal above all else.

Selecting for incompetence was part of the plan, and it’s been obvious from the start.

Hegseth was a Fox News host, not someone qualified for this position.

This story is stranger than fiction.
Microsoft's many Outlooks are confusing users – including its own employees
https://www.quantamagazine.org/undergraduate-upends-a-40-yea...
My suburban neighborhood here in the bay area is mostly cul-de-sacs, and on the 4th of July about half of them close off the entrance to non-residents/family, and have a collective BBQ in the middle of the circle. Several of our neighbors are musicians, so we get live music from people we know, and we all know how to cook up good stuff for the party. It's genuinely a lot of fun, and I look forward to it every year.
Are you talking about the X macro itself, or more generally?

I may be the obtuse one here, but for a more complex example, it took me a few hours to manage to make nested loops using Boost PP (for explicit instantiations). Even so, I avoid having to write a new one that's not a quick copy-paste because it's quite different from usual C++ programming, so my painfully acquired understanding quickly evaporated... as I suspect is the case of anyone who doesn't particularly focus on the C prepro.

In the end, it's just simpler to get some Python script or C++ program to write a string and dump that to a file than to write something illegible with the C preprocessor, if doing something at all complicated (in my opinion).
Maybe it’s not useless. 1) it’s only comparing it to their own products and 2) it’s useful to know that the product is the current best in their offering as opposed to a new product that might offer new functionality but isn’t actually their most advanced.

Which is especially relevant when it's not obvious which product is the latest and best just looking at the names. Lots of tech naming fails this test from Xbox (Series X vs S) to OpenAI model names (4o vs o1-pro).

Here they claim 4o is their most capable image generator which is useful info. Especially when multiple models in their dropdown list will generate images for you.
So far it seems to be the same for me.

It seems like an odd way to name/announce it, there's nothing obvious to distinguish it from what was already there (i.e. 4o making images) so I have no idea if there is a UI change to look for, or just keep trying stuff until it seems better?
Really heart warming story. My 2 cents:

The group is at a critical point now, having ~100 Whatsapp members. From what I've seen this creates a chilling effect where you inevitably end up with cliques and social cooling.

No new members will feel like they can actually send a message into a 100+ person group, while the old guard starts to use it as a notification board, rather than a real chat.

Eventually, newer members will feel too far behind the current discussions, and too socially exhausting to show up to meetups. I've seen these eventually get to 400+ members, many of whom don't live in the city anymore.

The best group I've ever been part of had a simple rule that worked amazingly: If you don't show up to an event at least once a month, you were removed from the whatsapp group. It keeps the group small, and comfortable, and it never felt intrusive to send a quick "Whats everyone up to today?" into the group chat.
It's just as useful and effective as the international law and order that was setup after WW2.

So nada.
Something Is Happening to People Who Use ChatGPT a Lot
That's his debut novel and I think it shows. Experimental, and has some puzzling sections. Having read that, Gatsby, and Tender is the Night, I think the latter is his strongest writing but the plot isn't as grand and dramatic.
You have the Google logo on your landing page above the fold - what's the connection?
Do you know of any data on this? It seems like the kind of thing that could be studied and measured. I'm inclined to believe the opposite about the viability of e-stamps, but I will readily admit I have no data to back that opinion up.
I see your sarcasm, it just didn't add anything.
There's no official definition of what the "the suburbs" means, but when people say that they usually mean "areas that follow a post-war suburban style of development". Think culdesacs and no sidewalks. The area you linked looks to me more like an older "streetcar suburb", which I think most people would just call "the city".