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joe__f

517 karma · joined October 14, 2021

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joe__f··on Climate change: Six young people take 32 countries to court
Yep, when you need people to start taking action to stop the world from literally burning then it's important to publicize that it's happening and people are likely to get scared
joe__f··on Why Do Nigerian Scammers Say They Are from Nigeria? [pdf]
There is a lot of content on YouTube of people scambaiting, it's quite fun to watch. I haven't seen one with someone using an LLM to chat with the scammers, but it could well be there somewhere
joe__f··on Chess grandmaster Hans Niemann denies using vibrating sex toy to cheat
In my local Sainsbury's, the Guardian and the Independent are on the top row just above comfortable eye level. Staring you in the face is the Star, Sun and Daily Mail.
joe__f··on Is Math Real?
How do you know that trees don't care about counting things? Have you ever been a tree?
joe__f··on Apple will charge way less to fix cracked back glass on an iPhone 15 Pro
You could source a new part yourself and get it installed there. It will set you back much less than $200
joe__f··on Apple will charge way less to fix cracked back glass on an iPhone 15 Pro
$200 to replace glass is pretty absurd, I bet they'd do that for £20 at the second hand phone shop round the corner from me
joe__f··on Lego axes plan to make bricks from recycled bottles
How much of the increase in Indian and Chinese emissions is accounted for by increased manufacturing of products being sent to the US?
joe__f··on The Pentagon’s Budget Is So Bloated That It Needs an AI Program to Navigate It
What about an ai generated article about the dod?
joe__f··on The Gruesome Story of How Neuralink’s Monkeys Died
Also true everywhere else in the world, probably at least slightly better in the US and other democracies.
joe__f··on NASA’s Webb finds carbon source on surface of Jupiter’s moon Europa
My first reading of the sentence in question was that it was patronising
joe__f··on Subways cost two to seven times more to build in the USA than Europe or Japan
I assumed the reason was going to be poor urban planning resulting in sprawling cities which need longer routes. From a scan read, this didn't appear to be the point made in the article.
joe__f··on Amazon Prime Video content to start including ads next year
1 day delivery is still going for most products in the UK
joe__f··on Modular forms, the ‘fifth fundamental operation’ of math
Oh yeah that's a nice observation! Protective space in 2D is the same as the Riemann sphere, which is the complex plane with one point added at infinity.

I forgot to add to my post that, SL(2) is the symmetry group of the Riemann sphere. So since you often use this as your space in complex analysis, this symmetry transformation is everywhere. So that's one reason why you might expect to see modular forms in lots of places. (At least, that's what I understood, maybe a mathematician would tell you differently.)

joe__f··on Modular forms, the ‘fifth fundamental operation’ of math
Imagine you have a function which transforms nicely under scaling, ie. f(Mx) = M^k f(x) for some b. Then if you have systems where you use x -> Mx regularly, you'll find these functions turn up because they're the ones that respect the symmetry.

Now make M to be a Mobius transformation, so that f((ax + b)/(cx + d)) = (cx + d)^k f(x), where the coefficients are in SL(2,Z) ie. integers with ad - bc = 1. Mobius transformations like this are common.

That's more or less it as far as I'm aware. There's some growth rate condition too, I don't think it's as important to an intuitive understanding as the transformation law.

Disclaimer; my training was in mathematical physics not mathematics. To me, what l wrote here was enough for me to feel like I understand what they are, at least to some basic level.

joe__f··on Two large cold fronts detected in the galaxy cluster Abell 3558
I'm very happy that 'slosh' is used in a well-defined way in this context.
joe__f··on UK overtakes France to become 8th largest manufacturer
If we haven't slipped that sounds pretty positive to me, better than anything else I've read in the news about our economy for a long time
joe__f··on Microsoft Nintendo acquisition hopes revealed by leaked Xbox exec email
When I looked at this I thought the title had been shortened and the meaning was obfuscated. The idea that Nintendo would sell to Microsoft is pretty laughable to me.
joe__f··on The brain is not an onion with a tiny reptile inside (2020)
I was going to post this
joe__f··on The brain is not an onion with a tiny reptile inside (2020)
At most any model can describe some part of reality with a given validity. Some models don't have any region of validity so we shouldn't use them. I think saying that 'all models are wrong' is kind of, rhetorical rather than instructive.
joe__f··on Slums in Delhi were flattened before the G20 summit
I watched a news clip where they were covering some slums up with netting to hide them. That was kind of, questionable. Bulldozing is a whole different thing
joe__f··on Simple Drawings with Mathematica
I used Mathematica a lot in my PhD. I never really understood this syntax, using a second layer of braces to separate the primitives would have made more sense to me. Many other parts of the Wolfram language I found to be intuitive and well designed.
joe__f··on TikTok fined €345M for breaking EU data law on children’s accounts
€345M is a pretty huge amount of money
joe__f··on Ask HN: Tech that seems to have vanished?
What's the attenuation rate of neutrons by the shielding? I find it hard to believe it would be 100% with none passing into the piping or water
joe__f··on Dementia risk is highest if you sit for longer than 10 hours each day
Zen masters spend many hours sitting. I haven't checked, but I suspect that they have lower than the average rate of dementia
joe__f··on Ask HN: Tech that seems to have vanished?
What will you do with all the radioactive piping and water that you produce?
joe__f··on NASA says distant exoplanet could have rare water ocean, possible hint of life
If you want to send things there, I would say the best solution is to take this as evidence that interesting exoplanets exist, and to look for similar closer ones
joe__f··on 'How do you know when your art is good?'
You make art for the making, not for the appraisal. When you've made the art, see how you feel. If you feel bad about your art, it's an opportunity to meet some challenging feelings and see how they're getting on. If you feel good, bonus!
joe__f··on Critical ignoring as a core competence for digital citizens (2022)
Who's your DM?
joe__f··on Critical ignoring as a core competence for digital citizens (2022)
I have just relegated a bunch of my apps into deep sleep, thank you.

YouTube Music was using 100 times as much battery as Spotify. I use them both, I'd say about 1:3 YouTube M:Spotify

joe__f··on Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo
This makes an interesting philosophical point on ethics and self awareness
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