Tootfinder

Graffiti written on sand. I think there’s a metaphor here struggling to get out…
#photography #graffiti

Bundesnetzagentur zwingt Bahn zu besserer Baustellenplanung
Die BNetzA zwingt die Deutsche Bahn zu einer Verbesserung ihrer Baustellenplanung. Hohe Zwangsgelder und neue Rechte für Mitbewerber sollen das sicherstellen.

A recursive approach for the determination of the nice sections of width three having a 4-crown stack as retract
Frank a Campo
https://arxiv.org/abs/2510.05640 https://

A recursive approach for the determination of the nice sections of width three having a 4-crown stack as retract
The characterization of the finite minimal automorphic posets of width three is still an open problem. Niederle has shown that this task can be reduced to the characterization of the nice sections of width three having a non-trivial tower of nice sections as retract. In our article, we characterize those of them which have a 4-crown stack as retract and we develop a recursive approach for their determination. We apply the approach on a sub-class $\mathfrak{N}_2$ of nice sections of width three …

Picture the human body. Zoom in on a single cell. It lives for a while, then splits or dies, as part of a community of cells that make up a particular tissue. This community lives together for many many cell-lifetimes, each performing their own favorite function and reproducing as much as necessary to maintain their community, consuming the essential resources they need and contributing back what they can so that the whole body can live for decades. Each community of cells is interdependent on the whole body, but also stable and sustainable over long periods of time.
Now imagine a cancer cell. It has lost its ability to harmonize with the whole and prioritize balance, instead consuming and reproducing as quickly as it can. As neighboring tissues start to die from its excess, it metastasizes, always spreading to new territory to fuel its unbalanced appetite. The inevitable result is death of the whole body, although through birth, that body can create a new fresh branch of tissues that may continue their stable existence free of cancer. Alternatively, radiation or chemotherapy might be able to kill off the cancer, at great cost to the other tissues, but permitting long-term survival.
To the cancer cell, the idea of decades-long survival of a tissue community is unbelievable. When your natural state is unbounded consumption, growth, and competition, the idea of interdependent cooperation (with tissues all around the body you're not even touching, no less) seems impossible, and the idea that a tissue might survive in a stable form for decades is ludicrous.
"Perhaps if conditions were bleak enough to perfectly balance incessant unrestrained growth against the depredations of a hostile environment it might be possible? I guess the past must have been horribly brutal, so that despite each tissue trying to grow as much as possible they each barely survived? Yes, a stable and sustainable population is probably only possible under conditions of perfectly extreme hardship, and in our current era of unfettered growth, we should rejoice that we live in much easier times!"
You can probably already see where I'm going with this metaphor, but did you know that there are human communities, alive today, that have been living sustainably for *tens, if not hundreds of thousands of years*?
#anarchy #colonialism #civilization
P.S. if you're someone who likes to think about past populations and historical population growth, I cannot recommend the (short, free) game Opera Omnia by Stephen Lavelle enough: https://www.increpare.com/2009/02/opera-omnia/

Vid NATO-konferens i Riga modererade jag panel om decentraliserade nätverk. När EU driver egen Mastodon skapar det infrastruktur ingen kan stänga ner. Dags för digital public service?
https://carlheath.se/det-torg-som-kunde-bli-varfor-nasta-kapite…

Camarades, je viens de publier un article sur la "communication en groupe pour l'activisme" :
https://blogs.mediapart.fr/xcli/blog/090925/communiquer-en-groupe-pour-lactivisime
À mettre dans tous les poings levés 💗 ✊
V…

Communiquer en groupe pour l'activisime
Dans ce billet, nous allons discuter de bonnes pratiques pour la communication sécurisée lors de la préparation et de réalisation d'actions militantes. En particulier, nous verrons pourquoi Signal, Whatsapp ou Telegram ne sont pas recommandés avant et pendant les actions militantes. Des solutions alternatives plus sûres seront proposées.

Hoppas ni alla läser "meddelandet" på Hagvidsons hemsida. Otroligt. De ransonerar smöret för att lära barnen att äta riktigt riktigt goda mackor och det var bara en "olycklig formulering" som fått folk att tro att det handlar om besparingar.
https://hagvidson.se/

HAGVIDSON

Diophantine tuples and Integral Ideals of $\mathbb{Q}(\sqrt{d})$
Kalyan Chakraborty, Shubham Gupta, Krishnarjun Krishnamoorthy
https://arxiv.org/abs/2509.06522 https://

Diophantine tuples and Integral Ideals of $\mathbb{Q}(\sqrt{d})$
Suppose $n$ is the fundamental discriminant associated with a quadratic extension of $\mathbb{Q}$. We show that for every Diophantine $m$-tuple $ \{t_1, t_2, \ldots, t_m\} $ with the property $ D(n) $, there exists integral ideals $ \mathfrak{t}_1, \mathfrak{t}_2, \ldots, \mathfrak{t}_m $ of $ \mathbb{Q}(\sqrt{n}) $ and $c\in \{1,2\}$ such that $ t_i= c\mathcal{N}(\mathfrak{t}_i) $ for $ i=1,2, \ldots, m $. Here, $ \mathcal{N}(\cdot) $ denotes the norm map from $\mathbb{Q}(\sqrt{n})$ to $\mathb…

Implementation and Application of Multi-Format 3D Data Integration in a Cross-Device Commercial Metaverse Platform
Masanori Ibara, Yuichi Hiroi, Takushi Kamegai, Takefumi Hiraki
https://arxiv.org/abs/2508.05332

Implementation and Application of Multi-Format 3D Data Integration in a Cross-Device Commercial Metaverse Platform
Traditionally, specialized 3D design data, such as BIM and CAD, have been accessible only to a select group of experts, creating significant barriers that prevent general users from participating in decision-making processes. This paper provides a systematic overview of practical insights for utilizing 3D data in industrial and architectural domains by presenting implementation cases of the industrial metaverse on Cluster, a commercial cross-device metaverse platform. This paper analyzes the ch…

heise | Vom Sofa in die Natur: 16 Outdoor-Apps, die zum Bewegen motivieren
Bewegung tut gut! Doch wie motiviert man sich und die Kindern nach draußen zu gehen und die Welt zu erkunden? 16 Apps mit denen Ausflüge spannender werden.