The most compelling thing about it is the fact that final link says that there’s problems with the earlier models you also linked to.

A critical constraint on solar system formation is the high 26Al/27Al abundance ratio of 5 ×10−5 at the time of formation, which was about 17 times higher than the average Galactic ratio, while the 60Fe/56Fe value was about 2×10−8, lower than the Galactic value. This challenges the assumption that a nearby supernova was responsible for the injection of these short-lived radionuclides into the early solar system.

They go on to explain a workaround, but if you’d even glanced at the abstract you wouldn’t have included the first two papers because the third one is arguing that the previous models are not supported by the evidence.

Have you read any of these?

You don’t need to use chatgpt to write replies to people. If I want to hear what chatgpt says I would use the app instead of posting on lemmy.

Current theory is basically that part of gas cloud just collapsed on itself. Maybe this was triggered or partially triggered by a supernova in the vicinity, but it’s super speculative, and there’s no way of knowing.

Heavy isotopes (at least those heavier than iron) are not evidence of a supernova, but of other phenomena. https://pubs.aip.org/physicstoday/article/71/1/30/818993/The-formation-of-the-heaviest-elementsThe-rapid

Basically space is incredibly old and things blow up and drift about before coellesing. We are all made of star dust, but from many different stars, and the presence of any isotope is not enough to confirm that there was a triggering supernova. Just that some supernova happened somewhere and the particles got pulled by gravity into part of an existing cloud.

This is one of the things where you asked chatgpt about something that didn’t exist, and it made up a story for you.

The solar system was formed by a collapsing cloud of gas and dust. We’re not really sure where it came from, but if it was mostly from an exploding star, it would have a lot less hydrogen in it. Suns consume hydrogen over their lifetime turning it into energy and heavier materials.

Sorry dude, but it’s very easy to be mislead by chat gpt particularly if you don’t know the topic and you want something to be true.

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I mean the fundamental problem is that humans are dicks and moderation is always needed. It should also be paid, and supported with counciling and recovery time when needed. Dealing with toxic content is a job.

Federation isn’t very good at this. The tech is great but everyone is a volunteer and there’s (afaik) no global ban hammer so trolls move from one instance to another. Bluesky currently has venture capital to pay for moderation teams, and centralized ban options.

I don’t know how long this can last without advertising revenue though.

That’s just what they want you to think.

Pi is predictable and deterministic.

Computer programs exist that can tell you what the next digit is. That means it’s deterministic, and running the program will give you a prediction for each digit (within the memory constraints of your computer).

The fact that it’s deterministic is exactly why pi is interesting. If it was random it would typically be much easier to prove properties about it’s digits.

No. 1011001110001111… (One 1, one 0, two 1s, two zeros…) Doesn’t contain repeating patterns. It also doesn’t contain any patterns with ‘2’ in it.

But pi is believed to be normal. https://en.m.wikipedia.org/wiki/Normal_number

So it should contain all finite patterns an infinite number of times.

Yeah, but a combination of this approach, and adding all compiled file types including .pyc to .gitignore would fix it.

the UI conversation around git has been going on long enough (here included) that there has to have been a significant global productivity cost due to the lack of a better UI.

I don’t think this is true.

Git is ugly and functional.

People love to complain about it being ugly, but it does what it’s meant to. If there was actually a persistent productivity hit from its interface, one of the weird wrappers would have taken off, and replaced it.

But the truth is, those wrappers all seem to be written by people learning to use git in the first place, and just get abandoned once they get used to it.

It’s good for anything that has thousands of examples on stack overflow.

For example, every time I end up trying to work with pandas, I always forget the syntax and it’s generally good here.

Anything unusual, or that is sufficiently complicated that I wouldn’t be able to Google for, and just forget it.

Eternity is fine. You just need to log out and back in. I’m using it now.

Details here: https://codeberg.org/Bazsalanszky/Eternity/releases/tag/v0.1.2

Yeah I thought you’d ask this. Basically they’ll never do this, just because their attitude is “fuck you I’m a bank”.

Beyond this, there’s a big difference between source code and having a working system.

For very long running systems their state depends very heavily on how they were maintained, little bits of informal design decisions that get components working together, and the order stuff was loaded in, and what other services were up and running when you booted up.

None of this magic is captured by source code, and it can make even setting up a replacement server, even as part of the same infrastructure really hard.

Of course banks are moving to more modern dev methods that encourages turnkey deployment, but the fact that they still rely on a bunch of COBOL code tells you there’s a lot of very old system running in “do not touch” mode

It wouldn’t matter much.

Most of what a bank does isn’t on your phone, but server side.

In fact most bank apps could be replaced with an internal web browser that is pointing at their website, and a password manager, with no loss in functionality or change in security.

And if you’d like to review the client side code the bank is using you can just open dev mode in your browser, right now.

Garmin does that too if you want to buy something from a company that still exists.

It’s actually getting more scientific. Think of it like biology. We do a big study of an ml model or an organism and confirm a property of it.

It used to be it was just maths, you could spot an error in your code and fix it. Then it was a bag of hacks and you could keep just patching your model with more and more tweaks that didn’t have a solid theoretical basis but that improved performance.

Now it’s too big and too complex and we have to do science to understand the model limitations.

Because any detector has to be based on machine learning you can open source all code providing you keep model weights and training data private.

But there’s a fundamental question here, that comes from Lemmy being federated. How can you give csam detecting code/binaries to every instance owner without trolls getting access to it?

Some instances will be run by trolls, and blackbox access is enough to create adversarial examples that will bypass the model, you don’t need source code.

That sounds like a bug.

Software can theoretically recover location by searching.

Like my TV hasn’t moved in the last 3 years, if any app searching for Bluetooth sees it they can know where I am.

You don’t need to what?