skysight-inc/HackerNews huggingface dataset:
I DO! PICK ME PICK ME!!!

First, be aware of FluidX3d [0] [1] - which is awesome for CFD simulations, OSS, etc...

Here is the premise of the CFD question:

It has long been known that Eddies [2] were studied by da vinci - and he was the first to propose the eddy pump... and how eddies work in hydrodynamics - and aerodynamics.

The barnacles on the leading edge of a Wales fin is also thought to cause beneficial eddies in the fin's ability to cut through water more efficiently with less drag.

Dimples on a golf ball affect the air-flow in tiny micro eddies, but at extraordinary speeds - where (I surmise) a certain amount of 'cavitation' may occur with a very thin film around the ball - kind of like water-tension, but with tiny eddies [4]

SO:

Create a Helicopter blade with leading-edge 'Barnacles' similar to the shapes of the Acorn barnacles on wale fins, which will create eddies as the air passes/affect the flow of the air over the foil.

Add dimples of varying shape profiles (such as convex round dimples to hexagonally based dimples (much easier in aircraft which are already based on titanium honey-comb-sandwhich materil)

But make the dimples morphic - being able to electrostaticly "activate" the dimples (meaning they are either on or off for the simulation)

The goal is to determine the characteristic of having dimples and/or barnacles have a net positive impact on the flow and conditions of air over a foil in the helicoptor blade - or the fixed wing of larger craft - or the entire fuselage dimpled like a golf-ball affecting fuel efficiency or other factors of lift or flight that could be visualized easily using something like [0]

[0.0] https://github.com/ProjectPhysX/FluidX3D

[0.1]
https://www.youtube.com/watch?v=mhacLfz92h0 <--- This is a fantastic video tutorial on installing FluidX3D

[1] https://www.reddit.com/r/CFD/comments/10ghc2d/fluidx3d_blows...

[2] https://theconversation.com/how-leonardo-da-vinci-master-of-...

[3] https://marinesanctuary.org/blog/whales-and-barnacles-an-unl...

[4] https://www.scientificamerican.com/article/how-do-dimples-in...
This a feature I was completely unaware of. Why would you choose to use a sparse file instead of multiple files?
Shout out to Obsidian, my most-used desktop and mobile app of the year. Absolute game changer. Hacker News showed me this and the book “How to Take Smart Notes” and it’s been an immense aid for difficult technical work, and plenty of other things as well.
https://news.ycombinator.com/item?id=23930335#23931373 ; the HLA book:
https://en.wikipedia.org/wiki/High_Level_Assembly

Code a sum function, Compile artifact1; Mutate/Change a line, Compile artifact2; and bindiff artifact1 artifact2

HLA is easier to follow than diffing to see what ASM gcc builds from C without flags to simplify the output bytecode. https://news.ycombinator.com/item?id=36454485

Learn X in Y minutes > MIPS Assembly: https://learnxinyminutes.com/docs/mips/
One of approaches is currently on the front page https://news.ycombinator.com/item?id=38767815
It'd be nice to have next/previous links somewhere on the page to navigate between the entries which are meant to be read in order.
I use gpt APIs for a tool I am building.

link: https://ropuz.com

and using chatGPT webapp for code and almost everything.
Logseq is nice but to call it an Obsidian alternative is a stretch to the point that I'd call it straight up incorrect.
I think for true believers this is dispiriting news; to become an actual currency we use in everyday life its needs to stabilize and stop these wild swings. Find its “true value” and set, stop this wild price discovery process.
And I wrote that stuff in the 80's, when your typical 'OS' on a computer was much closer to what a BIOS is than an actual operating system. Usually the games were far more sophisticated in terms of what their internal services provided than the equivalent OS services. The most the BIOS usually did for you was to boot your game code, change graphics modes, handle the keyboard and read and write raw media. Everything else you had to do for yourself.

Today there are far more levels of abstraction, especially when you use the various 3D engines or other large frameworks. But essentially those have taken over the role of a lot of that OS-like code.
* https://www.appbrain.com/app/astronomy-picture-of-the-day/co...

* https://play.google.com/store/apps/details?id=uk.co.jakelee....

* https://www.apk4fun.com/apps/uk.co.jakelee.apodwallpaper/

* https://ifttt.com/applets/fqHc2xPF-apod-wallpaper-setter
How to sell your software to large companies (2010)
Show HN: Feed.style – better UX for RSS and Atom news feed links
I really went down the rabbit hole on this one: I was working on a side project that has an RSS feed and I want people to use it, so I made the link be first & prominent. But the user experience was abysmal! A wall of gibberish text. So… Feed.style! A quick and easy way for an RSS link to do something reasonable for newbies (and non-newbies!).

Of course, being the attention hound that I am, I went through HN’s karma leaders to see what their feed UX was like, figuring I’d call out a few people to get some attention & upvotes. But wow, what a sorry bunch. Finding issues is like shooting fish in a barrel.

Before I begin, a shout out: ColinWright, you are literally the only one with decent-looking feed. Way to go! Everybody else, well, let’s just say there is room for improvement. I made some before & (potential) after links in the example section on the Feed.style home page.

So, on with naming & shaming: tptacek/fly.io (bad self link, no discovery link), jacquesm (bad self link), davewiner (no self link), danso (insecure self link), tosh (self link mismatch, though it does work), luu (bad self link)...

And the internet elders? Worst of all. If there could be one way of dealing with news feeds worse than a wall of text, what would it be? Popping up the “Save as…” dialog. I’m looking at you: mnot, tbray, jgrahamc, aphyr, thomaspark… Seriously, it doesn’t matter if you use the standard content type if it makes the UX this unfriendly. And yes, I’m using Firefox: aren’t you?

On a serious note: I am a big fan of RSS & think it has a ton of potential, but we have to do better or it will remain a geeks-only sideshow.
On playing gods: The fallacy of the many-worlds interpretation
Stress, also. People who go to the gym often do so in order to disconnect from the stress of their work.
Looks normal?
Which are the best you've used?
There is almost no protection for whistle blowers in university. If you report fraud you get kicked out of the lab and blackballed and have to restart your phd if someone even wants to take you in.

I would never recommend whistle blowing to anyone under those circumstances. It’s career suicide and may leave you personally devastated as well. The system is designed to protect bad actors.
You act like this behavior makes sense, but no other asset acts like this, except maybe penny stocks?
How much friggin gas do you use? Do you own greenhouses or something? Is that your bill on the months where there is a surprise freeze and the whole state poops its pants? Something is obviously missing from your consumption figure.
Sparse files make more sense if you see the file system and paging as unified. If you have allocated an array of 1 billion items, accessing the last item doesn't make the OS zero out everything from 0th to the billionth item, allocating millions of pages along the way. Virtual emory is sparse; so just one page of virtual memory is allocated. Mmap'd sparse files behave the same way.
You don't always immediately know which ones will be important.

Today you might take 10 photos of your family and keep the best one where everyone is smiling.

But 10-20 years from now you will probably appreciate having kept the other 9 where the baby is crying, the kid is making a face, and grandma has started to wander off.
Generally I use it to try and waste as much of Open AI and Microsoft's money as I possibly can. I try and get it to use the absolute maximum number of tokens as I possibly can for free doing pointless tasks, I use the image generation to produce the weirdest art I can without triggering the censorship and when I'm bored I just tell it as many lies as possible and make it treat them as truth.

I don't know if this is feeding into the training data or not but I hope that it is.
They offer Obsidian Publish for $8/mo: https://obsidian.md/publish
Patents have been a thing in the US since 1790 (even earlier, technically, as they are specifically called out in the constitution). What period of unencumbered free markets are you referring to?
Public pressure vs $1tn. Hmm.
Out of curiosity, why do you prefer open source in this case?
To be fair, ICEs tend to cath fire while they are moving. That's the time every system in the car is most stressed.

That means the odds of it catching fire on your garage while you sleep are lower.

EVs by their turn are highly stressed while charging.
sure, you don't need to know the opcodes, just the encodings, but the claim in the paper seems to be stronger than that
I've been regularly using ChatGPT for translating technical documents. It does a great job, definitely better than Google Translate.
There’s a Chinese saying, that if you apply weights and measures people will use the weights and measures to cheat and steal.

This time we stop measuring emissions and just focus on reducing emissions. And that would mean reducing consumption.
Only after they were hacked by China, before that they had no problems with censorship. They also had a plan to return. Doubt there were any principles in play when making decisions on their China operarions
Don't use it.

I tried using it for coding but it made up APIs constantly or had subtle errors. I don't know what people mean when they say it works for them. I can see it help as an icebreaker though. It just helps me get in the mood sometimes.

Other factual stuff ex nutrition questions, health stuff, historic events etc it's quite useless.

I am an LLM skeptic. I think there're a lot of people who're claiming that they find it valuable just like crypto was claimed to be valuable
You can still have stochastic model that works on and/or produces ie. coq formalism.
See my post in this thread about dimples/barnacles...

But have you seen this guys package: https://github.com/ProjectPhysX/FluidX3D
This is my favorite model as of now - https://huggingface.co/Open-Orca/Mistral-7B-OpenOrca

It's not top on the Open LLM leaderboards but it's worked well for me. Haven't had a chance to look at Mixtral but this is the one I'd try first - https://huggingface.co/Open-Orca/Mixtral-SlimOrca-8x7B.
I don’t recall people saying Blockchain is useless.

I do recall people having that sentiment about cryptocurrency, especially as it exists now, which is not precisely the same thing. And for a technology that’s been around so long it’s taking an awful long time to start solving problems at any noteable scale.
These were known applications 5 years back. How are they now?
abiding by the laws and weaponizing the law for your own benefit are two different things.
Wow. That's actually a great idea. Although, I know you didn't intend it as such. Haha.

But, now that you mention it, that's pretty much the future.

It will be better at serving ads than Google ever was.

So that's how Google fell...
Tiny adjustments is a nice way of saying you avoid wild variations spatially and temporally when you use gas.
It’s the obligation of the developer to make sure their game runs acceptably on supported platforms and on systems that meet the stated requirements.

If Valve is offering supplemental support on top of what the developer is offering (eg: running Windows games on the Steam Deck via Proton), then its Valve’s obligation to keep things running, as the developer has never committed to keeping things running outside their supported platforms. That said, additional support from the developer (eg: Microsoft/343i for Halo, Respawn for Apex Legends) to get games running on other platforms is always appreciated.
I've been looking for a way to host my notes like a website locally. When I'm not writing but only want to refer to my notes, I'd much rather have something clean like that without the editor UI. Like a docusaurus instance.

Suggestions?
I sometimes use it when I'm lacking inspiration to craft polite LinkedIn or email response.
If retail investors still have fun money to splash on bitcoin, I'm worried more inflation may be in our future.
I think your view of low-level projects from scratch is simply wrong, if you describe them as 'algorithmic details'.
https://github.com/ProjectPhysX/FluidX3D
The only things that prevented Google from returning to the China market, were public pressure and an employee revolt.

> Google employees are calling on the company to cancel Project Dragonfly, an effort to create a censored search engine in China.

“Many of us accepted employment at Google with the company’s values in mind, including its previous position on Chinese censorship and surveillance, and an understanding that Google was a company willing to place its values above its profits,” an open letter signed by Google employees published Tuesday on Medium says. “After a year of disappointments including Project Maven, Dragonfly, and Google’s support for abusers, we no longer believe this is the case.”

Google’s Chinese search app would have reportedly complied with demands to remove content that the government ruled sensitive and linked users’ searches to their personal phone numbers.

https://www.cnbc.com/2018/11/27/read-google-employees-open-l...
That would be the obvious solution, but it’s not surprising they couldn’t agree on a price when they operate in very different industries. Masimo makes medical devices, ones whose prices are probably both high and skewed by insurance. Apple is a consumer devices company and may not be able to justify a high royalty price and still meet certain consumer price points. Another possibility is that Apple’s watches may be an alternative to Masimo’s expensive, high-margin devices, so a licensing deal could destroy Masimo’s entire business in the long run. So, coming to an agreement on price may have been impossible.
Sounds like they're living rent-free in your life.
That's what the `memchr` crate does. It uses `vshrn` just like in your links. And vpmaxq before even bothering with vshrn: https://github.com/BurntSushi/memchr/blob/c6b885b870b6f1b9bf...
I really tried to be open minded and clicked your link. You lost me at:

> By combining Web2 (community interfaces) and Web3 (smart economies), we can launch the next generation of applications — which we refer to as Web5.

This is not how versioning works. It looks more like marketing coming up with the highest number possible without a meaningful increase in value delivered. (Remember the old
PC magazines with 999+ games on a CD Rom?)
It's good to have a name for this. I feel like my entire career has been "black triangle" problems, and it's been a struggle to get recognized for that effort at times.
No, I guess I'm a luddite that way.

But I may get into it from a SaaS perspective eg. get into the hype since there are customers.
The cathedral vs. the bazaar refers to a way of operating an open source project, not open source vs. closed source [0]. Raymond uses the example of Emacs vs. Linux (Stallman vs. Torvalds) where Stallman works in private, only allows a privileged few to contribute vs. Torvalds who accepts changes liberally.

[0] https://en.wikipedia.org/wiki/The_Cathedral_and_the_Bazaar
The ETF angle makes no sense to me. An ETF is designed to be based against a basket of securities. A bitcoin ETF seems really pointless. Why not just gamble on the token itself?

I see this as a means to sucker more retail cash in and have the early adopters of Bitcoin hoover it up.

For the record, my statement as of right now is still true. Remember that Bitcoin peaked at nearly 69k a piece and it’s currently at around $42k a piece.
> The actual market isn't Ender 3 vs Mk4.

Goalposts moved!

> It's extremely hard to argue that Prusa printers represent a good value in any market segment in a post-Bambu world.

I don't find it hard.

> produce better prints

Citation needed*

> faster

I've heard this is true, so let's roll with it!

>multiple high end printers that I've dumped $2k+ into.

You must mean high-end China, yeah? $2k doesn't sound like much when it comes to FDM high end.

> But I've also got an X1 for when I just want a part and don't want to think about it. It's an appliance. It just works. That has massive value for people where printing is a means to an end rather than a hobbyist journey.

Are you thinking that Prusa printers are a "hobbyist journey"? Because they're definitely an appliance. Not only that, they're an appliance that can be repaired with off-the-shelf parts for the most part.

> If you're a hobbyist that wants to tinker, there's nothing that justifies dropping 5x the cost of an E3 on a Mk4. $800 will go a long way toward making up any difference.

I totally agree (given the constraint.) No tinkering necessary on an MK4. Have you ever used one?

> Because they refuse to engineer their products for mass production. Which is, coincidentally, one of the reason why they're also failing to compete on price.

This is more eye-of-the-beholder stuff. You think this is bad. I think this is good. Makes the world go 'round.

While it does hinder them competing on price, it also grants them some flexibility to improve designs over time. Since the printer has printed parts, users can print the new/better designs if they want.

The thing I've noticed about Chinese-printer proponents is that they're hyper focused on price. Even when I say "Initial cost of ownership and what else?" you lead with "They're cheaper" Let's say that the prints are better, I think they do print faster and I'll take your word for it that they don't require any manual tuning by the user (just like Prusa.) What about repair? What about contributions to the 3d printing community? What about support (and I'm not talking about Prusa's chat/email)?

My first Prusa printer was an MK2. After its release, Prusa continued to iterate on that product and offered multiple upgrade kits over its lifetime at reasonable prices that brought compelling features. Do you think BL will do the same? Or will they instead want you to buy a whole new printer to get the latest whatever that they've lifted from the community?

I'm going to guess that you don't care. That's your right of course, but there are people who do care about e-waste and planned obsolescence and buying as few products made by slaves as possible. Those people aren't wrong just like you're not wrong. We just value different things.
To clarify, accepting that no answers might be available frees up our energy to focus on what we can do rather than trying out every dubious or fraudulent claim that could do us real harm.

This is coming from someone facing a life-threatening illness. I hear lots of shit advice all the time. I've chosen to separate myself from support groups that circulate dangerous ideas, and I think I'm better off.
Agree. Glowforge decided to make it mandatory and I have noped out of their product.
Thanks. I'm neither happy yet with the SELECT() function.

Concerning your proposal, I would rather not introduce a completely new control structure. But one could - like Wirth with the type CASE statement in Oberon-07 - reuse the WITH statement like:

WITH
SEND(TxChan, text) DO
| RECEIVE(FailChan, fail) DO
END

where I would just have to change the Guard a bit like

Guard = qualident ':' qualident | SEND ActualParameters | RECEIVE ActualParameters

and even ELSE is available. What do you think?
Loads of people fly from London/Birmingham to Edinburgh/Glasgow and visa-versa (it's often cheaper and faster than the train).

Then obviously NI as you mentioned.
Pretty similar to how a lot of people in IT are using it:

- Generating boilerplate code for a process - saving time and then just customizing basic code after feeding it an idea and some basic requirements

- Troubleshooting - especially on systems I'm not familiar with - this often gets me 95% of the way to a solution. Obviously not just copying & pasting scripts it spits out, but it's been very good at figuring out some obscure linux issues, oracle config issues, even 3rd party integration software.

- Meal prepping - give it a list of ingredients and preferences and have it spit out a plan on how to portion it out, make each different meal roughly equal nutrition-wise, plan out when and how to cook each piece on a day to make it the most efficient, and even generate a shopping list. Output it into a nice table and the hardest part is done.
I assume they want to keep their printers with 3d printed parts for the following reasons:

(1) Dog fooding their own printers (in mass production) so they're reliable;

(2) Making DIY, modifications and repairs easy on their printers;

(3) Ease of prototyping and making new products.

It seems that given a large production scale, (3) would not be so important. (1) seems very important, but maybe they could reduce the number of printed parts and still have "enough dogfooding"? As for (2), perhaps they could compromise on having injection molded parts that can be replaced (i.e. are interchangeable with) printed parts.
Even the cheapest trim is way more expensive, and way worse specced.
Not OP but for me it's to avoid the following playing out:

1. gradually, more vendor lockin (read: not plain markdown) features are added

2. greater focus on monetization

3. exit

4. go to #2.

In some products this doesn't matter. In a personal knowledgebase it might.
Is this not acting in bad faith? What is driving you to do this, is it not better to simply let it be and focus on something else?
> the ancillary factors are always quite boring

to you. I gave reasons I find them interesting. You don't have to find them interesting.
https://github.com/prusa3d/Prusa-Firmware-Buddy

Not open source? Odd, as I just read it's source code. Are you referring to licensing, ability to modify and compile yourself, or some else?
As a junior developer to sketch scripts or simple methods. If often knows things that I don't know, because it read all the manuals and all of SO. It stops to be useful after the second or third iteration on the code when it becomes apparent that it knows the syntax and the examples but it doesn't understand the purpose.
I would be more concerned about Prusa dying as a business than making billions in profit.
Habit of lab notebook has stuck with me since college. Shoutout to reMarkable tablets and Neo Smartpens, for helping combine the analog process of handwriting with digital search. Likely a personal thing, just like to take hands off keyboard from time to time. Seen hints of research re benefits of handwriting, but never really dug into it.
Its like having a car with outrageous acceleration. In the case of a car you are wildly careening all over the road doing cruisin usa wheelies backflips barrelrolls and all. In a pan it means scorched butter and half cooked bacon compared to burnt bacon on the same pan.
Think and Grow Rich GPT
Converting to charcoal is pointless, just burry biomass which is how we got fossil fuels in the first place.

A dump beats every commonly proposed method of carbon sequestration because people pay you to take it and all you need to do is prevent that carbon from entering the atmosphere.
Having read Napoleon Hill's book, "Think and Grow Rich", several times, and considering the book is now in the public domain, I thought that I would create a custom GPT using the book's epub as the context, and share the book with others.
Even better, she effectively says that anyone who does not advertise the "correct" bias is untrustworthy. Do these people have no shred of self-awareness?
I use it casually. I really like it, except for the fact that the UI shows empty log days. So if I don't take any note for a week, I get a big blank scroll, instead of whatever my last note was.

Structuring everything into "nodes" is a paradigm that works well for me.