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Net zero aviation: turning what is technically possible into something commercially viable


Michael O’Leary, chief executive of Ryanair, dismisses SAF as nonsense. He says: “It is all gradually dying a death, which is what it deserves to do. We have just about met our 2% mandate. There is no possibility of meeting 6% by 2030; 10%, not a hope in hell. We’re not going to get to net zero by 2050.”
in reply to silence7

There’s not a single mention of corn or ethanol in this article, which is an interesting omission. There’s no way to get to global air traffic volumes via used cooking oil.

Not all new biofuel demand would have to be met with corn. Algae, manure and cooking oil (which some airlines already use in small amounts) also could be sources for jet fuel.

But experts say the government’s ambitious targets — 35 billion gallons a year of sustainable aviation fuel from all sources by midcentury — require what are essentially dedicated energy crops, particularly corn. To qualify as sustainable aviation fuel under Biden’s tax-credit program, the fuel would have to be produced in a climate-friendly manner, for instance using renewable energy for harvesting, manufacture or transport.


Of course the Biden programs are now being stripped bare, but this source is a couple years old.

Corn doesn’t scale further especially well, either, and it’s greenwashing bullshit.

Corn is a water-intensive crop and it can take hundreds of gallons to produce a single gallon of ethanol. But as airlines embrace the idea of ethanol, prompting lobbyists for ethanol makers and corn growers alike to push for clean-energy tax credits in Washington, vital aquifers face serious risks.

Scientific studies have long questioned whether ethanol made from corn is in fact more climate-friendly than fossil fuels. Among other things, corn requires a huge amount of land, and it absorbs relatively little carbon dioxide out of the atmosphere as it grows. Planting, fertilizing, watering, harvesting, transporting and distilling corn into ethanol all requires energy, most of which currently comes from fossil fuels.


The Guardian is discussing European airlines and fuel sources, while NYT is focused on the Biden-era US, but of course there is crossover and they grow corn for ethanol in Europe, too.



Terence Tao says ChatGPT helped him solve a MathOverflow problem and saved hours of manual coding




I was able to use an extended conversation with an AI chatgpt.com/share/68ded9b1-37d… to help answer a MathOverflow question mathoverflow.net/questions/501… . I had already conducted a theoretical analysis suggesting that the answer to this question was negative, but needed some numerical parameters verifying certain inequalities in order to conclusively build a counterexample. Initially I sought to ask AI to supply Python code to search for a counterexample that I could run and adjust myself, but found that the run time was infeasible and the initial choice of parameters would have made the search doomed to failure anyway. I then switched strategies and instead engaged in a step by step conversation with the AI where it would perform heuristic calculations to locate feasible choices of parameters. Eventually, the AI was able to produce parameters which I could then verify separately (admittedly using Python code supplied by the same AI, but this was a simple 29-line program that I could visually inspect to do what was asked, and also provided numerical values in line with previous heuristic predictions).

Here, the AI tool use was a significant time saver - doing the same task unassisted would likely have required multiple hours of manual code and debugging (the AI was able to use the provided context to spot several mathematical mistakes in my requests, and fix them before generating code). Indeed I would have been very unlikely to even attempt this numerical search without AI assistance (and would have sought a theoretical asymptotic analysis instead).



in reply to silence7

Beef flap meat costs $15/lb in my area. Market forces are already making it unaffordable to eat it.
in reply to Someonelol

Uh, lol.

Flap meat is 47,90 €/kg for the first price I could find online. It's a butcher's so a supermarket is prolly a bit cheaper but you're just fucking kidding with the $15/lbs. Although that does come to like 28€/kg. And the piece here comes to $25.51/lbs.

Huh, felt like a larger difference before I converted it.


in reply to silence7

I believe Waymo’s strategy has always been to shoot for level 5 autonomous driving and not bother with the others. Tesla not following that strategy has proven them correct. You either have a system that is safe, reliable, and fully autonomous, or you’ve got nothing.
Questa voce è stata modificata (1 mese fa)

in reply to silence7

Scientific American? What kind of DEI enabled woke bullshit is that?!? /s

Don't worry about planetary boundaries. Fascist America will jail or murder the scientists and journalists so your average mouthbreather will die in bewilderment.






I cant connect some websites on arch.(error connection reset)(error SSL or chiper dont support)


Hi. as I told, I cant connect some spesific websites on arch linux. I using hotspot wifi on my laptop but it didnt worked.

I tried changing mac adress, changed resolv.conf (then undo it.) I tried delete evert ssl and redownload it, downgrade mtu but none of them worked.

Also idk why but there's always a yellow sign next to the wifi symbol

any solutions? thanks.

Edit: Okay I solve the problem by checking curls logs however my wifi was a public wifi and I still cant connect it.

I can open captive portal but when I try to connect it connection resets by portal.

I've tried connect with tls 1.1 1.0 ( Bc curls log saya so) But none of them worked.

I think this is the one of linuxs dark hole

Questa voce è stata modificata (1 mese fa)
in reply to Wayad

Turkish DNS is really an interesting thing. Awhile back, the govt hijacked Google's DNS service via bogus BGP routes so they could block/censor traffic. They then also started directing DNS queries away from the EU and pushing those to APAC.

Not sure what the sites are or what they resolve to on your end, but you might try using openssl to see if its a bad cipher or outdated cert maybe: openssl s_client -connect domain.com:443 -ciphersuites TLS_AES_128_GCM_SHA256 -tls1_3

in reply to Mordikan

I'm trying to usea public internet which has a captive portal for log in. I'm logging in, writing my information than click on connect and boom. Certificate error.

But at least I've learned which certificate made this error in next comment. its /etc/ssl/certs/ca/certificates.crt




TikTok ‘directs child accounts to pornographic content within a few clicks’


Despite platform’s limits on adult content, study finds it not only accessible but often suggested

TikTok has directed children’s accounts to pornographic content within a small number of clicks, according to a report by a campaign group.

Global Witness set up fake accounts using a 13-year-old’s birth date and turned on the video app’s “restricted mode”, which limits exposure to “sexually suggestive” content.

Researchers found TikTok suggested sexualised and explicit search terms to seven test accounts that were created on clean phones with no search history.

World News reshared this.

in reply to falseWhite

I can't tell if you're being facetious or not but perhaps you don't remember when the biggest "stars" on tiktok were 15 year olds dancing in bikinis....
in reply to MicroWave

I fucking hate tiktok. Never understood how this braincaser got allowed into the EU in the first place. Maybe I am just an old angry dumbass, but when I first started using it in my marketing team back in 2019, it just shouted cancer every post I saw. This thing should never been allowed for children. Also, read the terms of the app..



ICEBlock Owner After Apple Removes App: ‘We Are Determined to Fight This’




ICEBlock Owner After Apple Removes App: ‘We Are Determined to Fight This’


The developer of ICEBlock, an app that lets people crowdsource sightings of ICE officials, has said he is determined to fight back after Apple removed the app from its App Store on Thursday. The removal came after pressure from Department of Justice officials acting at the direction of Attorney General Pam Bondi, according to Fox which first reported the removal. Apple told 404 Media it has removed other similar apps too.

“I am incredibly disappointed by Apple's actions today. Capitulating to an authoritarian regime is never the right move,” Joshua Aaron told 404 Media. “ICEBlock is no different from crowd sourcing speed traps, which every notable mapping application, including Apple's own Maps app, implements as part of its core services. This is protected speech under the first amendment of the United States Constitution.”

💡
Do you know anything else about this removal? Do you work at Apple or ICE? I would love to hear from you. Using a non-work device, you can message me securely on Signal at joseph.404 or send me an email at joseph@404media.co.

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in reply to ardi60

The apps purpose is to aide illegals, break the law, and to incite/encourage political violence against law enforcement - the owner will find himself in a world of hurt the more he pushes this.


Kash Patel fires FBI agent trainee for displaying gay pride flag


The FBI employee was fired on the first day of the government shutdown as Trump threatened more terminations.

FBI Director Kash Patel on Wednesday fired an agent in training for displaying a gay pride flag on his desk while appointed to a field office in California last year, according to three people familiar with the matter.

The trainee, who previously worked as an FBI support specialist in Los Angeles, received a letter — dated Oct. 1 and signed by Patel — claiming he had displayed an improper “political” message in the workplace during his assignment in California under President Joe Biden, according to a copy of the letter shared with MSNBC.

The letter cited President Donald Trump’s Article II powers under the Constitution to dismiss federal agency career personnel, a justification used in several recent firings at the Department of Justice and FBI. The terminations are currently being challenged in several lawsuits.


in reply to geneva_convenience

As I understand it the blockade itself is legal under international law, except for the fact that it's being used to willfully starve civilians. The state-sanctioned piracy is unequivocally illegal though since it violates the principle of freedom of navigation.

don't like this

in reply to Tenderizer78

The blockade is fully illegal under international law and has been ruled so by the International Criminal Court of Justice in 2024.

Israel has no territorial rights over the Gaza sea under international law. And to make this even worse, they were not intercepted in the sea of Gaza, but in international waters far from the shore.

The only legal blockade is the Ansarallah one on the Red Sea.

Questa voce è stata modificata (1 mese fa)

in reply to ardi60

And I don't have the ability to turn it off because I'm not an admin, so I am stuck with this shit on the new work PC.
in reply to ardi60

Hey my work is forcing me to do an 8 hour class on copilot. This feels super unnecessary. Like, I know how to type a prompt. What else could I learn in 8 hours?


Formation à la coordination d'action de désobéissance civile non-violente


13 octobre 2025, 19:00:00 CEST - GMT+2
Ott 13
Formation à la coordination d'action de désobéissance civile non-violente
Lun 19:00 - 21:30
XR Paris-Nord

Cette formation s’adresse à toustes les personnes intéressées par la coordination d’action (pas besoin d’avoir de projet en tête même si ça aide). Elle aura lieu en ligne, de 19h à 21h30 sur ce lien : meet2.organise.earth/rooms/2w1…

Elle est gratuite, même si vous pouvez bien sûr nous soutenir financièrement là : opencollective.com/alerteplane…

Mais une manière encore plus appréciée de contribuer, sera de participer à une prochaine coordo d’action ;)

Objectifs pédagogiques :

- Se familiariser avec les modes d’actions et tactiques d’XR (à travers principes, modes d’actions et exemples concrets)

- Savoir commencer sa coordo d’action (recrutement, design, gouvernance)

- Identifier les phases et enjeux principaux de la coordination d’action

- Savoir qui contacter et comment pour obtenir du soutien ; où trouver les ressources clé

- Identifier les outils et processus pertinents à sa coordination d’action

Cette formation a été pensée par et pour des membres d’Extinction Rebellion (exemples utilisés, consensus d’action) mais toute personne souhaitant s’engager dans la désobéissance civile (y compris sans certitude de vouloir coordonner une action) y sera bienvenue !

🔗 Ressources complémentaires :

- 📖 Le Guide de la coordination d'action (XR) rdv.extinctionrebellion.fr/ind…

- 🤝 Demander un pamarrainage de coordinations d'action ou autre question spécifique auprès du GST "Actions et Logistique" (pour celleux qui ont un compte Mattermost) : organise.earth/xrfrance/channe…

Questa voce è stata modificata (3 settimane fa)


Jazz Dinner al Crash (in duo)


24 ottobre 2025 20:30:00 CEST - GMT+2 - Crash Vibes & Wines, 00198, Rome, Italy
Ott 24
Jazz Dinner al Crash (in duo)
Ven 20:30 - 22:00
📅 Elisabetta Fratoni Jazz Quartet
La voce 🎙 ed il basso 🎸 di Elisabetta Fratoni e le tastiere 🎹 di Luciano Tellico accompagneranno la cena al Crash.
Questa voce è stata modificata (2 settimane fa)

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October Quiz Questions

Each month we’re posing six pub quiz style questions, with a different subject each month. As always, they’re designed to be difficult, but it is unlikely everyone will know all the answers – so have a bit of fun.

Classical & Ancient World

  1. What is the name of the home of the Greek Gods?
  2. Which body of the water was called mare nostrum by the Romans?
  3. Ask and Embla are the Norse equivalent to the Christian what?
  4. What was the name of the Egyptian God of the Sun?
  5. In Roman mythology, who is the goddess of the sewers?
  6. Which word derives from the Latin for “sand” and originally denoted part of a Roman amphitheatre that was covered with sand to soak up the blood from combat?

Answers will be posted in 2 weeks time.

#blog #classics #history #october #quiz #zenmischief



Il filologo Salvo Micciché dona suoi volumi al Comune di Scicli


Lo scrittore ha donato 300 copie dei suoi titoli principali al Comune nelle mani del Sindaco di Scicli, Mario Marino, e dell'assessore alla cultura, Giuseppe Mariotta. «Un gesto di grande valore culturale per la nostra città!» (Sindaco e assessore alla cu

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Lo scrittore ha donato 300 copie dei suoi titoli principali al Comune nelle mani del Sindaco di Scicli, Mario Marino, e dell’assessore alla cultura, Giuseppe Mariotta.


📚✨ «Un gesto di grande valore culturale per la nostra città!» (Sindaco e assessore alla cultura del Comune di Scicli)

Oggi pomeriggio, presso il Municipio di Scicli, abbiamo avuto l’onore di accogliere Salvo Salvo Salvatore Micciché – scrittore, filologo, giornalista e studioso di storia siciliana – che ha voluto donare generosamente numerose copie di quattro suoi preziosi volumi alla nostra comunità.

I titoli donati sono autentiche gemme di sapere:

– Scicli: onomastica e toponomastica, Biancavela Editore e Il Giornale di Scicli, Ragusa, 2017

Scicli. Storia, cultura e religione (secc. V-XVI), scritto con Stefania Fornaro, Carocci Editore, 2018

La Sicilia dei Micciché. Baroni e briganti, intellettuali e popolo, con Giuseppe Nativo, Carocci Editore, 2020

Giovanni Aurispa, umanista siciliano, con contributi di Michele R. Cataudella, Augusto Guida e Giuseppe Mariotta, Carocci Editore, 2021
Salvo Micciché, Mario Marino e Giuseppe MariottaMario Marino, Salvo Micciché e Giuseppe Mariotta
Alla presenza mia e del Sindaco Mario Marino, abbiamo celebrato un momento che testimonia la profonda attenzione dell’Amministrazione Comunale verso la Cultura, la Storia e l’identità del nostro territorio.

Un sentito ringraziamento al Sindaco Mario Marino, la cui sensibilità e impegno costante rendono possibile la valorizzazione di iniziative come questa, che arricchiscono il patrimonio culturale di Scicli e lo mettono a disposizione di tutti.

Grazie di cuore a Salvo Micciché per la sua generosità e per il contributo instancabile alla conoscenza e alla memoria della nostra terra.

prof. Giuseppe Mariotta

#SalvoMiccichè

#MarioMarino

#LibriPerScicli

#IdentitàSiciliana

#OrgoglioSciclitano

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Stress e ansia ti stanno stritolando? Prova questo


Rischi di guerre nucleari, tensione sociale, difficoltà economiche, micro criminalità dilagante ovunque, è del tutto ovvio che lo stress e l'ansia schizzino alle stelle, ma è altrettanto ovvio che non possiamo intossicarci a vita con sedativi. Quindi che fare? Una strada potrebbe essere questa!


A group of Irish grocery workers banning grapefruit led to Ireland being the first county to pass BDS against Apartheid South Africa


A group of Irish grocery workers banning grapefruit led to... #BDS, #Ireland, #south #Africa, #Apartheid, #nelson #Mandela, #david #Nihill
youtube.com/shorts/O5yK7XiYQvU…


The last 2 mins of Marinette's brave endeavor


files.catbox.moe/cu3d7f.mp4

Pictured is one of the fascist pigs who went straight for the camera upon boarding

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Aggiornamento a NodeBB 4.6.0


Siamo passati alla versione 4.6.0 di NodeBB passando anche dalla 4.5.2.

Trovate qui tutti gli aggiornamenti della 4.5.2.

github.com/NodeBB/NodeBB/relea…

E qui quelli della 4.6.0.

github.com/NodeBB/NodeBB/relea…

Come sempre se trovate qualche problema segnalatelo pure 😀

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Signal Protocol and Post-Quantum Ratchets


Technology reshared this.

in reply to Andromxda 🇺🇦🇵🇸🇹🇼

Keep in mind, pedophiles don't use Signal.

They use Matrix, which is a real thorn in the side of the authorities trying to catch them.

Hopefully this gives you some insight into which platform is more private.

in reply to sadfitzy

How do you know? 😑

Please link a single news source showing Signal app was part of a pedophile bust - should be easy if its got poor encryption that can be backdoored by authorities.

in reply to Andromxda 🇺🇦🇵🇸🇹🇼

Software engineering is so often dominated by a move fast and break things mentality, driven by a rush to deploy and scale and profit, with the ability to fix problems with later updates. It’s a very immature process compared to every other engineering domain, because fix-it-later is much more difficult, expensive, and dangerous when it’s a bridge, building, airplane, or anything else tangible (although Boeing did a great job of destroying engineering process and accountability after the MBAs took control away from the engineers).

The work detailed in this Signal blog post is clearly slow and methodical, with continual checks for correctness and curiosity for optimal solutions driving careful experimentation. Building on existing proven PQ standards and keeping their refinements open for public academic feedback is wonderfully responsible. Building formal correctness proofs into CI and blocking trunk merges is spectacular.

They’re doing everything right, even years after Moxie Marlinspike’s departure. Bravo! Working this way is very expensive and requires absolute support from upper management. I’m definitely a fanboy for Meredith Whittaker and the direction she’s running the organization. Hell yeah!




Ari Aster, Florence Pugh – „Midsommar“ (2019)

Das, was aussieht wie eine Postkarte aus dem letzten Schwedenurlaub, ist ein chirurgischer Eingriff mitten ins Herz einer Beziehung. Kein klassischer Horror, sondern eine radikale Dekonstruktion von Intimität, Macht und kultureller Projektion. Wo Hollywood den Schrecken meist in dunklen Kellern und nächtlichen Wäldern versteckt, wagt Ari Aster einen Gegenentwurf: Wir sehen alles im grellen Tageslicht, ohne jede Rückzugsmöglichkeit. Der Horror liegt in der Sichtbarkeit, in der Unerbittlichkeit des Lichts, das einfach alles aufdeckt. (ZDF, Wh.)



fixed it


archived article web.archive.org/web/2025100305…
in reply to IO 😇

And like 20 very VERY inconvenient years beforehand that you will have to live in your lifetime.
in reply to IO 😇

Consider that "billions of poors dying" doesn't sound particularly important 🤔 /s

in reply to Alas Poor Erinaceus

As much as I hope they actually made it that far, I'm pretty sure it was a gps glitch. Either that or they shut off the tracker for awhile. Because there were frequent data points up until the area where they all got intercepted and then the final data point took a massive jump from the blockade to the Gaza shore.


Milwaukee fights back against fake abortion clinic


Milwaukee protest at fake reproductive care clinic

Milwaukee, WI – Activists with Reproductive Justice Action-Milwaukee (RJAM), have been showing up consistently throughout the month of September to protest the newly opened Alliance Women's Clinic.

“Places like Alliance want to divert you from accurate and accessible healthcare,” stated a member of RJAM on September 15.

“We believe that no healthcare professional’s religious, moral, or personal opinions affect your abortion care,” continued another RJAM member.

“Our bodies, our lives! Our right to decide!” chanted Catie Petralia, an RJAM member, and followed by an echo of protesters outside of Alliance.

Activists hope to raise awareness about the harm the newly opened clinic can cause. Reproductive Justice Action Milwaukee has protested other fake clinics in Milwaukee over the past few years, mainly the Women’s Care Center. RJAM’s Instagram notes that “fake clinics” or “crisis pregnancy centers” operate as healthcare entities that are funded by religious pro-life organizations to manipulate pregnant women into not choosing or receiving life-saving abortion care.

Alliance opened its doors in late August 2025, on the outskirts of West Allis, Wisconsin. RJAM took notice of this after they had protested an Alliance Family Services van in June, which had parked outside of Planned Parenthood in Milwaukee for months. The Alliance agenda, per their website, is anti-abortion centered.

Reproductive Justice Action Milwaukee will be continuing to show up to picket Alliance Women’s Clinic “until we kick them out of the city. They are not welcome here!” Stay tuned with Fight Back News to hear more stories about this fight.

https://fightbacknews.org/milwaukee-fights-back-against-fake-abortion-clinic?pk_campaign=rss-feed



in reply to eldavi

Palestinians need to take one out of the Zionist playbook and start hunting down supporters of Israel around the world.

It's the only way for them to fight back and the Zionists brought this on themselves.

Questa voce è stata modificata (1 mese fa)
in reply to whereyaaat

there's a lot of overlap between zionists & the ruling class; the palestinians are vastly outmatched if they tried.
Unknown parent

lemmy - Collegamento all'originale
eldavi
that's sadly funny on multiples levels and also because that's where this woman lives and creates her videos.


gazans fished while idf distracted by flotilla


the idf was so distracted by the sumud flotilla that the gazans were able to fish today
in reply to eldavi

Hope this is true, but it’s hopeful either way
Questa voce è stata modificata (1 mese fa)



in reply to

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in reply to adenglobalcdsas

Wow sounds interesting, just wondering, how much investment money do you need?