skysight-inc/HackerNews huggingface dataset:
All Arnoldi methods basically repeatedly grow and shrink a search space until they contain good approximations to Schur vectors. Shrinking (=restart) is necessary to keep constant memory requirements, as well as performance.

Restart is somewhat non-trivial because it has to preserve the Arnoldi relation. ARPACK uses Implicit Restart, which is a very beautiful trick based on "perfect shifts": a single iteration of the shifted QR algorithm where the shift is taken as an exact eigenvalue is a way to reorder basis vectors (moving vectors you want to remove to the back, so you can truncate them) while preserving the Arnoldi relation. However, perfect shifts in the QR algorithm are good on paper but can lead to arbitrary loss of precision in finite arithmetic, especially with nearly repeated eigenvalues.

I think newer implementations (like SLEPc) are often based on Stewart's Krylov-Schur paper. It's not as pretty but certainly more stable.

In short: give ARPACK a matrix with a cluster of almost repeated eigenvalues at the boundary of the convex hull, and it tends to fail.
Was this ironic? Bytes weren't always 8 bits.
Ask HN: How are you trained to deal with earthquakes?
Here are lots of people in California, which is seismically active region. I wonder how people in California, or Japan, or Chile, or other places, are educated to deal with earthquakes, and how they react when it happens?

If you experience mild/moderate shaking -- no casualties, just cracks in wall finish, for example, what do people do afterwise? Do they freak out, stay outdoors, doomscroll, rush out of the city, go to diviners, etc?

I moved from a seismically stable plain to mountains with active seismicity, and over last 2 months we've had two major earthquakes, felt at 3-4 degrees locally.

Turns out people aren't prepared at all. They run downstairs, during or immediately after the quakes, stay outdoors for hours even in winter cold (it's 0..-5°C here), spread rumors.

The most discussed topic is: why Google app didn't warn ahead, or SMS notification from emergency ministry didn't come on time. And whether/how the outdoor sirens & loudspeakers worked. (Of course few will trust the seismologists anyway.) The most ridiculous question that people seriously talk: which pet to get, that'll warn you hours/minutes ahead.

Kudos to journalists, they don't support that, but the discussions make me sad. (20 years ago I experienced 2-3-degree shakes, and educated myself minimally -- looked up some data on USGS [1], later watched what happened in Japan, talked to architects and a geophysicist.)

I wonder how developed nations cope with this, and how well it works.

[1] https://earthquake.usgs.gov/
I took a look at the code for the benchmarks: the first three I opened up are full of direct array accesses. It's very much "C code written in Rust."

What's more perplexing is they're aware of iterators: they use them in the setup code all the time!

Apparently this was intentional:

> We manually inspected the code of each program and ensured that the two versions (i) implement the same algorithm, (ii) follow the same structure (e.g., both use for loops), (iii) use similar data when possible, and (iv) involve no library functions and system calls. We envision that, this way, the implementation differences are reasonably minimized.

This doesn't mean this analysis is inherently bad, but it does mean that it's not necessarily representative of actual Rust programs, which is the Achilles heel of any microbenchmark comparison
Gallons is another obsolete unit.
Do you have specific examples?

Otherwise your comment is not quite useful or interesting to most readers as there is no data.
I suspect you are joking, but bytes weren't always 8-bit long, were they?
Fan Control is amazing, it's pretty easy to set up stuff and keeps my PC quiet.
Skipped a step: the model needs to be trained, which requires the patient symptoms as the target for weight updates. I think that you simply misread my original comment.
Hacky Spell Checking for Blog Posts
And yet...

It got there in the end.

But in the early days, that opened up the niche for the Atari ST, the "Jackintosh", sold with the tagline "the power without the price". Dismissed these days but hugely important and influential in its time.

And that also paved the way for the Amiga.

But in the end, they tied their systems too closely to the low-end entry-level spec, which Apple did not do with the "sealed off" Mac. Which led to the Mac Plus, and the Mac II, and hundreds of models, still on sale today.

While the ST and Amiga struggled into the 68030 era then mostly died out.

So in fact, it's not really true, is it?

It's not about the price, because...

... in the end, they got reasonably priced...

... and still sell today, 40 years later...

... there's always the 2nd hand market...

... they had cheaper rivals but those companies died, showing that keeping your prices high enough for healthy profits is in fact the long-term winning strategy.

So: no. The MacBook Air is even more "sealed down."

It has been on sale, that locked down, for 16 years, and yet it still sells ten million a year.

https://gitnux.org/macbook-air-statistics/

So... no. Argument rejected on all counts.
There are regulations in many industries that prevent companies doing almost anything they want.

IMO there are good reasons for some regulation of platforms.
> What is it with people complaining about so called gatekeeping

Because that's what it is. I spent a couple years reading /r/fantasy daily, and about once a month or so there would be a post something along the lines of "My SO/close friend/family member thinks I don't read because I listen to audiobooks. Are they right?" People believe there's debate about what they read there's debate about, and it can lead to accusatory comments like that. It's damaging when someone wants to be part of a community and feels like an outsider when they shouldn't.

> that can listen to a classic algebra math book with all the proofs and get the same learning experience as from reading and working through a paper book

1. I recently watched this video https://www.youtube.com/watch?v=WxDd8ocpcHk discussing what constitutes "valid" reading. Someone who reads 20 romance novels a month is a voracious reader just as much as someone who spends 3 years to get through Rudin. Reading romance novels is reading. Reading Star Wars novels is reading. Reading self-help books is reading.

2. Listening acuity improves with practice. If you listen at 3x speed (or faster, depending on the speed of the narrator), it's kind of incredible how many more words you can keep in your head at a time.

3. (This point is redundant because, see point 1) People attend math lectures all the time. Sure, there will be visual aids but who says you aren't supplementing with visual aids when you listen to an audiobook when you're learning something? And while I haven't researched it myself I'm sure there are a lot of accessibility options for listening to math that help a lot as well.
A similar and more recent example of graph decomposition is the fast graphlet transform:

https://github.com/fcdimitr/fglt

This algorithm has a nice Algebraic formulation recently implemented with the GraphBLAS in LAGraph:

https://github.com/GraphBLAS/LAGraph/blob/stable/experimenta...
I am about to put in a garage 300' from my house. I will already have a trench for power and water. What kind of network cable can/should I drop in the same trench?
The main downside with GPL licenses, from the perspective of corporations, is the requirement to share your changes if you distribute the code. GPL v3 and AGPL were both designed to close loopholes that were useful for certain corporations that didn't want to open source their own code. I believe the main ones were "Tivoization" (devices where you can't run modified code due to DRM) and cloud SaaS services where modified GPL code is run without sharing the changes because technically the cloud is not "distribution". GPL v3 was designed to stop the former and AGPL to stop the latter.

FAANG companies generally hate AGPL and ban the use of code licensed under it which is a backdoor way of admitting that their cloud platforms include modified GPL code whose changes are not publicly available.

The permissive licenses like MIT and BSD allow corporations to take your code and modify it without paying you or even sharing the changes with you. All they have to do is give you credit. That's not something any sane corporate lawyer is going to care about.

Both of these types of licenses permit commercial use without paying the people who wrote the code and the entire FOSS community rejects non-commercial licenses as "not open source" at all. Corporations only object to GPL because it prevents them from taking other people's work, modifying it, distributing it and profiting from it without sharing their changes. That can reduce corporate profits by allowing competitors to build derivative works off of the same code.

Personally, I'd prefer if there was a major non-commercial license for code because that would ensure nobody is profiteering off of my work without paying me. People who aren't in this line of work find it strange when you explain to them that somebody could write a portion of a highly successful product and never see a cent in royalties from it.
I imagine this would be of great benefit to plagiarists.
Yeah, I'd nearly wonder if this is a weird self-image thing on the part of the people who write TorrentFreak; piracy feels fairly universally popular.
It's even more confusing when those two numbers are the same which does sometimes happen. However, for grid storage it's more common for the GWh number to be 2-4x as large as the GW number.
If neither you nor they can tell me with any technical detail what they are doing differently from a fusor in terms of construction or operation, then I conclude it's just a fusor. Is it multiple anodes? Is there some magnetic field being introduced?
> doesn't care about Apple's app store policies, they actively
appreciate them (whether they know it or not).

Don't think anyone actually noticed this fly past yesterday [0] but as
I commented here [1] Apple have set out their position clearly as
patrician and protective (under the dishonest guise of "security").

This is right for some people.

There is a place for the digitally bewildered, like a kind of care
home for those who've basically given up on trying to make sense of
their place in the digital world, given up all agency, and essentially
conceded control of their lives. Ironically the polar opposite of
Apple's 1984 Superbowl advert [2].

But we really ought to tell them they're being put out to pasture.

[0] https://developer.apple.com/security/complying-with-the-dma....

[1] https://news.ycombinator.com/context?id=39580678

[2] https://en.wikipedia.org/wiki/1984_(advertisement)
> As a scientist, should I continue to support open access journals, just so I can be trained away?

If science was reproducible form articles posted in open access journals, we wouldn’t have half the problems we have with advancing research now.

Slightly tongue in check, but not really.
It's very interest the dynamics - the time and cost of almost all options available to me, end up being quite close.

Easiest for me is "drive myself and park at the closest ramp" but that's the most expensive after a certain number of days.
Sorry, to be clear, I am saying, regardless of whether it is legitimate to do X, it is still illegitimate to distribute copyrighted code intentionally without following the terms of the license.
Yet, it's wrong.

Just the fact that people keep using placeholder files should be enough to convince anybody. But if you want to use git for software development, well, almost all development conventions mandate directory intentionally kept empty or to exist before their contents exist. I've never seen anybody decide on something that doesn't.
You mean embedded-hal, not embedded-hat :-)
What do you use to connect the screen to your Air? I've got an M2 air, and recently purchased a 5120x1440 screen with HDMI and DisplayPort outputs. I first connected it through HDMI to one of the USB/HDMI/USB-C Apple adapters, and the result was terrible. But I ordered a DisplayPort->USB-C cable, and it worked perfectly.
One of the few useful cases for IPFS tied to DOI.
Yup, just manually type your location in that window.

Weather is coming (at least for now) from https://open-meteo.com/
Korea is majority protestant.
I barely made it through the abstract and introduction before realizing that I too don't have enough "brain jam to spread" on this at the moment.

This paper isn't exactly, you know, light reading.
That's a great idea! It would also open up the possibility for very long 'system prompts' on the side of the company, so they could better fine-tune their guardrails
>there's a psychological barrier that keeps journalists and editors from reaching this point

I’m certain you will find it is a monetary barrier and not a “psychological” one.
It's one of the fields with a brutal learning curve that a lot of people don't make it over. My best guess is it's the difficulty of writing code that manipulates other code, usually with quite different semantics and behavioural goals. There's also a lot of folk wisdom and general noise in the field.

That makes compiler teams especially keen to hire people who have already spent ages building compilers. However that obviously has a bootstrapping problem so the larger teams also hire graduates who look like they might make it over that curve. That's roughly how I got into it.

If you're experienced in general but not with compilers, the obvious play is to join a company doing whatever you're used to which happens to also have a compiler team, which roughly maps onto "largish software company", and aim to move laterally.
> Tesla lamented that too much in theoretical mathematics was being done in place of lab work.

This just shows that you have no idea what you're talking about. Not only does Tesla predate the whole field of computational physics, but computational physics is distinct from both theoretical mathematics and lab work.

And I asked a simple question-- how is a SAFIRE constructed or operated? Still no answer!
Well, it depends. In the companies I worked for, RTO didn't mean that everyone instantly quit, what happened is that people started looking for new jobs and usually those who got an offer and quit were one of the most valuable (in terms of knowledge, skill, and experience).
They are funded mostly by Microsoft, and dependent on them for compute (which is what this funding is mostly buying), but I'd hardly characterize that as meaning they are "Microsoft in a trenchcoat". It's not normal to identify startups as being their "VC in a trenchcoat", even if they are dependent on the money for growth.
That's useless. Only courts can help.

NYTimes is suing OpenAI because it siphoned paid articles and reproduced in verbatim.

That's basically the same thing it does to open source code, so if NYTimes wins, there might be some hope.
Reverse-engineering my way to “Spotify Wrapped for your university meal plan”
My pet peeve is that in enterprise development is that files grow into monsterous god objects: ten of thousands of lines long. There is no way to track that a single file was split into multiple files. They are all sucessors of it. When I go to a split of a file I want to see the history and blame of the method not just "brand new, created yesterday". This has led to the "pattern" of never moving anything because you will get blamed for it in the marginalia and it will be up to you to pull the old version and find the real author.
It comes with a bunch of downsides though. It is lossy, requires a third-party driver (and you become dependent on them to provide timely updates for new macOS releases), protected content from iTunes and other players is not visible on the laptop display when DisplayLink adapters are connected, a bunch of HiDPI resolutions are missing on Apple Silicon Macs, etc.

USB-C Alt-Mode and Thunderbolt always trump DisplayLink. So it's best to figure out first what displays you want to connect and then buy the Mac that supports that configuration. But if you already have a Mac that doesn't support the number of displays that you want to hook up, DisplayLink is a solution.

Luckily, these new MacBook Air models support two external 5K@60Hz displays with the lid closed.
“Will he nill he…” huh, I wonder if that’s the etymology of the modern expression. “Willy-nilly” just seems like a nonsense phrase. “Will he nill he” could be read as “will he or will he not,” right? It seems like only a couple short conceptual hops to go from “whether or not he decides to do something” to “look at all the random things he could do.”
Unionized YouTube contractors got laid off
Well, these people are not wrong per se. Scale is what drove what we have today and as hardware improves, the models will too. It's just that in the very short term it turns out to be faster to just code around some of these issues on the backend of an API rather than increase the compute you spend on the model itself.
The earliest teletypes were practically ticker tape weren’t they?

You couldn’t redraw the “screen”, just reprint the command line every time you hit backspace. Which is also why CTRL-U and CTRL-W are commands that date back to teletype machines. Much quicker and cheaper to drop the entire input or a word and try again.
I’d class your first two points as portability but otherwise agree. There are solid business cases for picking Pulsar vs. e.g. AWS SQS/SNS and a lot of that is going to come down to whether you value portability more than the increased operational commitments. I wouldn’t fault anyone for picking either side of that as long as it was a considered call.
Distrokid and Bottled Streams
Distrokid falsely flags music as botted?

I use distrokid and iirc the founder posts here would like to know if there is any truth to the allegations in the video.
ShrekBook Pro Laptop [video]
I don't think you can fry a modern chip, at least without really going out of your way to.

But even if you just forced all of your fans to run at 0% (or physically removed them) I would expect the CPU to trigger PROCHOT and throttle it's performance, hard crashing if it has to.
I'm not the OP but I sure do think they do.

Once you get in a market domineering position your liabilites and duties to society increase and your ability to make unlimited profit decreases. The more central your product is the more you need to do.

Either voluntarily or by force of law.

The EU (comission) seems to agree and yes that is very much not an unregulated "libertarian dream" market they are talking about.
Speaking as a tech worker who has been formally diagnosed with schizophrenia: fuck off.

I am aware you are doing the "modest proposal" bit. Still: fuck off. People like you are why I never ask for reasonable accommodations for my disability, even when I am having serious health problems.
It's mostly about future-proofing. If I had renovated my house 20 years ago, the "best" copper cable I would have installed was cat5e, which will never get much beyond 2.5G. But if I had installed SMF instead (which was available at the time), it would be compatible with terabit networking hardware that is available today, and the petabit networking hardware that is likely to be available 20 years from now.

When the lifetime of cables in the walls is typically more than 40 years, it makes sense to avoid limited technologies like copper or multi-mode fiber.
300 ft. is long enough that fiber will be the better choice if only to reduce signal loss. CAT6 has a maximum length of 328 ft., so while it would work, you're going to have a faster, more reliable connection all around with fiber.
Whether it is vague, and whether it is purposely vague as a mechanism to achieve its aims, are different phenomena to the aim of the license. IMHO.
Agreed about opex while the business is ramping.

Kubernetes has universally been a productivity killer in the organizations I’ve seen deploy it. It’s one of the bigger threats to the company at my current gig.

Maybe it’s just stuck in the trough of disillusionment this year, but I’d love to see a non-terrible replacement for it take over.
Two questions:

1. Where's the link to the RSS feed on your site

2. What RSS feed reader are you using?
An acre-foot is evidently supposed to represent the expected water usage of a suburban house. 1.5 million acre-feet is 1.85 trillion liters, or the volume of 740,000 olympic swimming pools. None of those numbers really help me except that it's about 1.5 million households worth of water.
I think, in order to have the desired effect, the deterrant must be in proportion to the resources of the transgressor as a whole entity.
If its not, Apple can afford to behave anticompetitively with their appstore, hold on to an illegal position of power and use that to extract revenue for the other lines of business that they're in.

Morally, if we fine violations to the speed limit in proportion to the context of the transgression only it will not adapt to the income of the transgressor. That makes it practically legal for rich people to drive as fast as they wish.
They don't have HDMI port, so you're limited to your adapter or the TV's display port capabilities.
"I read Gavin Menzies next book, 1434, found it equally interesting and compelling."

As a trained STEM Scientist, I found this book utterly nonsense and non-scientific.

"Then I read his third book, The Lost Empire of Atlantis, and found it just as plausible as his first book."

For me this is not very promising. "As plausible as his first book"
300 feet is at or beyond the edge of copper CAT cables, I'd run multimode fiber of the appropriate type (run a few to be safe?) - fiber doesn't care about power interference.

NOTE: See comments - I ran multimode because that's what the connectors in the off-lease hardware I had came with. Seems single mode is better in general.

https://www.lanshack.com or similar should have something in the $400 range.

You could be super cool and run conduit, but that itself has a cost (spooled conduit is what I'd do, but costly)
You’re totally right, a few $B is not something any of us are bootstrapping. But there is no secret sauce (at least none that stays secret for long), no meaningful patents, no network/platform effect, and virtually no ability to lock in customers.

Compare to other traditional tech companies… think Uber/AirBnB/Databricks/etc. Their product isn’t an algorithm that a competitor can spin up in 6 months. These companies create real moats, for better or worse, which significantly reduce the ability for competitors to enter, even with tranches of cash.

In contrast, essentially every product we’ve seen in the AI space is very replicable, and any differentiation is largely marginal, under the hood, and the details of which are obscured from customers.
Sure, here it is the trick I followed: https://old.reddit.com/r/LGOLED/comments/vhbqru/remove_trend...