MurphyA/hacker-news huggingface dataset:
by Ccecil | 2025-05-08 15:23:31+00:00
Pressure advance has been around for at least a decade with many people using it.

I would say the biggest gain for the newer (cheaper) printers have is the input shaping and resonance tuning. This allowed for running higher accels/speeds with a machine that is less mechanically sound. Followed closely by the lack of slicer options and forcing use of branded filament, eliminating those choices makes it easier to make a slicer profile that is repeatable (in my case I have been using Atomic filament and the same basic slicer profile for close to 10 years).

In my shop...I still don't use advance or input shaping...but I build machines with very solid frames. The gains from input shaping seem to be less based on how solid the frame/motion is (based on what I have seen). Current printer is ~10 years old, still solid. Not as fast as the corexy (due to leadscrew drive) but prints very well and has a 320mm cubed area. Without pressure advance or other magic tricks I print at 100mm/s with PLA @150-200mm/s travels, not to mention I have a very heavy extruder.
by ferguess_k | 2025-05-08 15:23:37+00:00
I actually do believe that he genuinely wants to give all of his money to some purposes. I mean money is just a number to him now. You definitely don't want to die with a huge pile of assets left behind.

It's just that I might not agree with the purposes he chose. But hey, he is the boss, he can do whatever he wants.
by Cthulhu_ | 2025-05-08 15:23:40+00:00
Isn't the Gates Foundation effectively a trust in itself? I'm no economist, I don't know the exact definitions but the projects they do aren't overnight or one-off donations, they need long term (financial) support and guidance; vaccination development takes years, vaccination programs with the intent to eradicate diseases like polio take generations - e.g. the vaccine was developed in the 50's, it took ~70 years to mostly eradicate the virus in humans (only 30 known new cases in 3 countries in 2022).
Computer use agent with RL training for day trading?
by iiTsEddy | 2025-05-08 15:23:45+00:00
We now know that RL can make models more capable on measurable tasks and is the new dimension of scaling law, but is anyone putting these capabilities to more meaningful use beyond Olympic math problems or 2D game playing?

So far, pretty much all of the computer use agent demos I've seen revolve around some kind of instruction following (book this flight, clean my desktop, etc.) I wonder, is anyone working on putting them into active trading in financial markets and use P&L as a reward / loss function? Or maybe title agnostic video game playing which is optimized for ELO or rank or win rate?

It feels like context length would go eventually from millions of tokens to days or months of agent's "life span"; inference cost would eventually go down to time cost of GPU server since hybrid models (mamba + attention) with linear time complexity can perform like regular transformers (who's inference is quadratic). What are the other major technical challenges here?

I think a meaningful metric is crucial, and I took a lot of inspiration from this startup, Chai.ai, a competitor to Character.ai. I went to one of their events and got the sense that they are essentially optimizing chat LLMs for user monthly retention and subscription. Their small team hit 30M ARR with 1.8m DAU, and it happened over the last year or so. Combined with my own experience working at a startup, it seems like the right metric is the money shot.

Am I missing anything fundamental? Is anybody working on this? (or have interest?)
by bryanlarsen | 2025-05-08 15:23:57+00:00
In the 70's a middle class family had 1 car, a 1200 square foot house, ate out once a month, had less than a dozen sets of clothes per person (most of which were work clothes).

They felt well off, because they were doing fabulously well compared to the 30's which were still lived memory.

And because they felt secure. They did not feel in any danger of losing the essentials of housing, food, clothing and health care.

Now we have a lot more, but we've lost that feeling of security vis a vis housing & health care.
by 999900000999 | 2025-05-08 15:23:57+00:00
>The Gates Foundation’s mission remains rooted in the idea that where you are born should not determine your opportunities.

Arguably he's already done so much for billions of people. Had typing on computers not became the main way businesses communicate , anyone with bad, handwriting would be stuck in menial work.

When I was growing up in the 90s my hand writing was so bad it was assumed I would never amount to anything.

Then computers completely take over all aspects of business in the early 2000s. No one is writing TPS reports by hand.

All of a sudden my horrible handwriting doesn't matter. It's still really bad. But I've made 6 figures for well over a decade, along with an amazing year at about 200k.

None of this would of been possible without Gates. I also owe the creator of Android Andy Rubin. It's been a while ( and it might of been one of the other co founders), but I was able to thank Rubin. His response was something like "Well, we still need to get building applications working on Android."

I've also been able to thank( on this forum) Brendan Eich, the inventor of my first programming language, JavaScript. Amazingly humble for someone who helped create trillions in wealth.

Apart of me thinks Gates could still lead some innovation in computing. I hope somehow he's still coding under a pseudonym perhaps, and occasionally answering tech questions.

His gift to us has been this amazing industry.
by surgical_fire | 2025-05-08 15:24:12+00:00
1) Labor will be a lot more expensive if assembly is done in the US, and since parts are cheap, labor will likely be the biggest expense.

2) Working at assemblying cheap shit is bottom of the barrel work that people only do when they are desperate. It's either work or starve. It's why those jobs are outsourced to where labor is extremely cheap.

I am not from the US, but I read these posts with some mild amusement, because there is poetry that I am unable to capture.

Like, the goal of most countries is escaping the middle income trap and becoming advanced economies, and now people in the richest, most advanced economy there is want a regression to have assembly sweatshops instead of an advanced economy based on services and finance.

The funny part is that people that advocate for that wouldn't want in a million years to work in an assembly sweatshop. They count that someone else will do the job. Maybe immigrants, before they are deported to some concentration camp in Central America.
by VectorLock | 2025-05-08 15:24:33+00:00
As a completely random aside the article mentions "This company was founded in October 2008 by W. Steven Garrett, who took the name from an item used in the 1986 computer game The Legend of Zelda." To my knowledge I don't think TLoZ had an item called a "genesis key." It has a "magic key" and the only references I could find for "the genesis key" on Google are a book that was published after the company was founded?
by Isamu | 2025-05-08 15:24:34+00:00
>Yet soon a social media missive critical of the attraction from Walt's granddaughter would go viral. It raised anew ethical questions that often surround any project attempting to capture the dead via technology, be it holographic representations of performers or digitally re-created cinematic animations, namely debates surrounding the wishes of the deceased and whether such creations are exploitative.

Exactly the same reaction happened when Disney developed the first Abraham Lincoln animatronic for the New York World’s Fair in the 1960’s.
by zozbot234 | 2025-05-08 15:24:36+00:00
> There's a reason they're marked as secondary beneficiaries on all my accounts.

Strictly speaking, the foundation discourages individuals from donating directly to them, mostly because the tax treatment of giving that way isn't necessarily favorable. They've set up Gates Philanthropy Partners as a 501(c)(3) charity which is aligned to the same philanthropic goals.

(Of course there's also many other worthwhile players in the broader EA space.)
by mjevans | 2025-05-08 15:24:39+00:00
Everything was _way_ more expensive back then, and the CRT monitors had to be driven with electron beam steering gaps (blanks) while the output cycled to the next row.

Thus there was downtime for an otherwise idle chip to do some work, and yes, saving a few dollars or 10s of dollars in 1970s money was a LOT of money!
by jbellis | 2025-05-08 15:24:52+00:00
I'm kind of disappointed in this article, Splade is a cool way to improve results of a TF/IDF index with minimally invasive changes and this obscures that more than it clarifies.

> Next, my SPLADE implementation in Elasticsearch is oversimplified. If you scroll back up to get_splade_embedding, we extract non-zero elements from vec_np (the SPLADE tokens) but discard their associated weights. This is a missed opportunity. The SPLADE papers use these weights for scoring matches.

Yes, exactly, that is the whole point of Splade.

Probably easier to demonstrate if you drop down a level to Lucene, I don't think you will be able to do it easily with Elastic.

Tangentially, I haven't looked closely at SPLATE which tries to marry Splade and ColBERT, but it's an interesting idea. https://arxiv.org/html/2404.13950v1
by PaulHoule | 2025-05-08 15:24:52+00:00
Not in any realistic sense. This report

https://www.eia.gov/analysis/studies/powerplants/capitalcost...

just mashes together a PV array with about an hour of storage and quotes a price for that which is low and is certainly not going to get you through the night.

So many things drive me nuts about that report and the discourse around it that, I think, contribute to people talking past each other. For instance, quoting one price for solar energy is nonsensical when the same solar panel is going to give much more energy in Arizona than it is in upstate New York. The cost of a solar + battery system is going to be different in different places. In upstate NY we deal with a lot of retailers that are based in places like Bentonville, AK who just can't believe you might need an electric space heater in late April or otherwise your chickens might die. Since 95% of the world's population lives in a milder climate it's no wonder our needs don't get taken seriously.

The intermittency problem involves: (1) diurnal variation (overnight), (2) seasonal variation (do you overbuild solar panels 3x so you have enough generation in the winter or do you invest in very long term storage?) and (3) Dunkelflaute conditions when you are unlucky and get a few bad weeks of weather.

I've seen analyses of the cost of a grid that consider just smoothing out one day, but not one that covers seasonal variation. (So much of it comes down to: "how many days of blackout a year can people tolerate?")

With a significant overbuild or weeks worth of storage capacity costs are not going to be so favorable against nuclear energy. The overbuild offers the possibility that you could do something useful with the extra power but it is easier said than done because "free" power from renewables is like a free puppy. You have to build power lines to transmit it, or batteries to store it, or you have to feed it into some machine whose capital costs are low enough that you're not going to worry about the economics of only running it 20% of the time. (Go tell a Chemical Engineer about your plan to run a chemical factory 20% of the time and that's probably the last time you'll hear from them.)
by kyawzazaw | 2025-05-08 15:25:03+00:00
Yup, Docs as Code is the more well-known phrase.

https://www.writethedocs.org/guide/ See

Approaches to creating documentation Docs as Code Docs as Code at Write the Docs Docs as Code at other conferences, video casts and articles DocOps What is DocOps, anyway? Who practices DocOps? DocOps resources
by toomuchtodo | 2025-05-08 15:25:18+00:00
AI is (potentially) killing Cloudflare's business model. If it transitions to push (where you have to get your content into LLM models if you want users to see it) from pull (where users pull it with browsers and find it with search engines), this is not good for what Cloudflare offers.

Do I want to rely on search engines? Or do I want to live within the Anthropic or ChatGPT client with everything at my fingertips it has trained on (as well as tooling access via the MCP ecosystem)? Desktop->Browser->AI terminal is the rough story arc. Do I want an open web? We haven't had that for a long time; we've had Big Tech building moats and monopolies to siphon up all the value (most recently evident in the Google DOJ antitrust suit, their ad monopoly, potentially being forced to divest Chrome, their agreement for default search with Apple, and so on). Generative AI is a watershed moment where users can get some control back over how they consume and ETL the data they are interested in, and this is not great for incumbents.
by beranews | 2025-05-08 15:25:31+00:00
Location: São Paulo, Brazil. Remote: Ok

Willing to relocate: Yes (USA)

Technologies: - Cloud Management: Multi-cloud management (GCP, AWS, Azure, Oracle). Data Engineering & Analytics: Data Management, Data Strategy, Data Engineering, DataOps, Data Fabric, Informatica, DataStage, Big Data, Analytics Engineering, Analytics Intelligence, Data Governance.

- APIs: Sensedia API Gateway, API Security, API Design, API Product Manager./ AI/ML: AI, Generative AI, Oracle AI Vector Search, Oracle Cloud Infrastructure -

- Generative AI, Oracle Cloud Infrastructure AI Foundations.

- Financial Operations: FinOps, FinOps cost optimization.

- Management & Process: Leadership, Innovation, People Development, Management Foundation 3.0, Scrum Master, Scrum Product Owner.

- Other: Open Source, PIX implementation.

Résumé/CV: https://shorturl.at/Bwfxd

Email: brunormoura@gmail.com.

I'm a professional in IT and Data Management, specializing in leading teams in Data Engineering and Analytics with a focus on operational efficiency, FinOps cost optimization, and delivering business value. Your technical background is extensive, covering multi-cloud management (GCP, AWS, Azure, Oracle), security and IAM, Generative AI, alongside diverse technologies for data, monitoring, and automation.
by ViewTrick1002 | 2025-05-08 15:25:45+00:00
Yes? That was half a century ago. The equivalent choice in 2025 is renewables with storage.

Today they are wholly unable to build new nuclear power as evidenced by Flamanville 3 being 7x over budget and 13 years late on a 5 year construction schedule.

Their EPR2 program is also in absolute shambles continually being pushed into the future while revising up the costs.

Now hopefully targeting investment decision in mid 2026 and the first new reactor online by 2038.

Until 2038 we should of course stop decarbonizing. No point reducing the area under the curve.
by WesolyKubeczek | 2025-05-08 15:25:46+00:00
There used to be times when language-level composition did not exist, so inheritance was practically all you had. There used to be ugly hacks to implement mix-ins, for example, in PHP (first versions of Symfony used them and did their best to make them not ugly, but they had to devote a whole chapter on how to do them right anyway). I suspect a lot of contention comes from those times — and from the fact that even when you can do better, many folks still have the muscle memory wired to "if inheritance is the only tool you have, everything looks like a subclass".

I like languages where I can have both, and where the language authors are not trying to preach at me.
by larodi | 2025-05-08 15:26:02+00:00
This statement is so 90s and so BOFH-centered that it is irrelevant to a level of stupidity. Gates has done a lot to prove he's not a cold-hearted mf and compared to all the bros in their prime at the moment, dude, just think of Elon or Larry Ellison, well our man Billy is really very much a bright persona.
by nullc | 2025-05-08 15:26:09+00:00
What? US banks won't bank you if you don't have 27 distinct forms of government ID and a recent rectal exam.

And then they have someone with an incomprehensible accent in a call center that probably also runs scam calls calling you up and asking for your password as part of their ordinary SOP.

They deploy fancy new tech like "verifying your voice" with some AI crap while simultaneously not allowing your password to have more than 8 characters. (Which must have two symbols but if one of them is ` you'll experience random spontaneous logouts).

There may be many causes of the disaster that is bank security, people not having ID is absolutely not part of it.
by rogue7 | 2025-05-08 15:26:25+00:00
I built a small static web app [0] (with svelte and tensorflow js) that shows gradient descent. It has two kind of problems: wave (the default) and linear. In the first case, the algorithm learns y = ax + b ; in the second, y = cos(ax + b). The training data is generated from these functions with some noise.

I spent some time making it work with interpolation so that the transitions are smooth.

Then I expanded to another version, including a small neural network (nn) [1].

And finally, for the two functions that have a 2d parameter space, I included a viz of the loss [2]. You can click on the 2d space and get a new initial point for the descent, and see the trajectory.

Never really finished it, though I wrote a blog post about it [3]

[0] https://gradfront.pages.dev/

[1] https://f36dfeb7.gradfront.pages.dev/

[2] https://deploy-preview-1--gradient-descent.netlify.app/

[3] https://blog.horaceg.xyz/posts/need-for-speed/
by SkyeCA | 2025-05-08 15:26:48+00:00
I think e621 would count. (Disclaimer it's a highly NSFW furry booru so I'm not going to provide a link on HN)

It has has one of (if not) the best tagging systems of any website and between the tags and search filters you can find anything you like.

Each page has a header with useful links, a list of tags to the left, and a grid of paginated images with basic stats on the rest of the page. Click an image and you get a bigger version of it with download options, all of the tags that apply to it specifically, and comments from users.

It's basically as good as it can be.
by goa | 2025-05-08 15:27:01+00:00
I have a few qualms with this app:

1. For a competent ML researcher, this is trivial to build using VQA + MCTS + standard message passing.

2. MARL techniques with attention-based communication solved this years ago

3. It does not seem very "viral" or income-generating. I know this is premature at this point, but without charging users for the service, is it reasonable to expect to make money off of this?
by TOGoS | 2025-05-08 15:27:57+00:00
The controlled opposition party makes dang sure that the only other option in major elections is "more of the same". (i.e. Democrats generally fail to clean up whatever mess the last Republican administration made, continue funneling money to Israel, yaddah yaddah, and don't to a whole lot to help the working class.)

A lot of people are completely fed up with "more of the same", so they voted for the clown or didn't bother to show up.

Don't blame the voters when they were never given a real choice.
by noahjk | 2025-05-08 15:28:15+00:00
this is definitely a big part of it. in the past, cars were either small with tiny engines or big "boats" with massive engines and super soft suspension. those old suspensions weren't really about control - they were for comfort or just trying to deal with all that weight. now basically every car, no matter the size, comes with lighter parts, way smaller but way more powerful engines, smarter computers, better tires, and most importantly, way better suspension. all that means a lot more grip, way faster acceleration and braking, and a much bigger feeling of control - even for people who might not be paying full attention (or really know what they’re doing).

we've kind of made every car a sports car, and that means when people make mistakes, those mistakes get out of hand way quicker before physics wins.

then there’s the whole manufacturer's arms race - the classic prisoner's dilemma. trucks and suvs just keep getting bigger, faster, heavier, packed with screens and gadgets. all the old luxury stuff is standard everywhere now. so everyone is more and more isolated from the actual consequences of bad driving ... until they're not.
by mrguyorama | 2025-05-08 15:28:52+00:00
>Catanzara resigned from the CPD in November 2021, as his firing from the CPD appeared imminent, and announced his intention to run for mayor of Chicago.

It takes a lot of paperwork to fire cops because they have zero accountability, so showing "they didn't do their job" is actually hard. You can thank the supreme court for that. More importantly, the person who SHOULD be the one firing them, the Sheriff or Chief of police, is a fellow member of the "Fraternal order of Police" and that violates the usual "labor"/"management" split of unions in other roles. Those roles are often either appointed, in which the city should be hiring someone willing to fire bad cops, or voted in, in which case that's a general problem in the US that cops and judges who get voted on tend to be extremely horrifyingly authoritarian and tyrannical and the voters LOVE it.

Nowhere in that link does it explain or document how they "tried to fire" the police officer at any point before 2021.

Unions have no legal authority or power. Their entire "power" is in getting your job specified in a contract, and suing the employer for violating that contract when someone gets fired and has enough pull with union management.

More importantly, for teachers, especially in Maine, the norm is single year contracts. There is no "tenure" or similar. You are only employed for a single year and the school districts have complete authority to just not hire you for the next year, which is their typical way to fire someone and happens often enough.

IE, the entire worry of pc86 was invalid from the get go.
by alain94040 | 2025-05-08 15:29:15+00:00
I have fond memories of the IRQ from the mouse card. It was the only source of regular interrupts you could get on the Apple II (that I'm aware of). So in 1987, I tried to write a preemptive switcher, so you could run two code paths at the same time.

The development of that code was very painful. At the time, there was no external debugger. The moment you enabled the interrupt, your interrupt handler would get called, and it would try to program a context switch (something the 6502 is definitely not supposed to do). If you had any bug in there, your Apple II would be completely frozen, all you could do is reboot, and try to guess what went wrong and try again.
by energy123 | 2025-05-08 15:29:33+00:00
Yeah, if we went back in time and built nuclear then we'd have nuclear today, and the fixed costs would have been paid by a previous generation. Is that surprising?

But that doesn't inform us on what the optimal policy decision is in the current year of 2025 given 2025 prices and time-to-build of the various options.

In Australia renewables have the perfect confluence of multiple factors:

- low seasonable variability of insolation in the north

- high wind speeds in the south

- land availability for solar

- high statistical diversification of renewables due to size

- higher than normal costs of nuclear due to first-of-a-kind costs dominating the total build-out costs due to the small energy needs of the country, and higher labor costs

The CSIRO studied this for Australia and released a report about it. Even when you factor in storage and transmission costs, renewables are significantly cheaper than nuclear.