#topology — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #topology, aggregated by home.social.
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A Topological Picture Book, Rendered
https://e-infinity.space/picture-book/
Comments: https://news.ycombinator.com/item?id=49618050
#HackerNews #topology #picturebook #rendering #mathematics #education #visualart
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A Topological Picture Book, Rendered
https://e-infinity.space/picture-book/
Comments: https://news.ycombinator.com/item?id=49618050
#HackerNews #topology #picturebook #rendering #mathematics #education #visualart
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A Topological Picture Book, Rendered
https://e-infinity.space/picture-book/
Comments: https://news.ycombinator.com/item?id=49618050
#HackerNews #topology #picturebook #rendering #mathematics #education #visualart
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A Topological Picture Book, Rendered
https://e-infinity.space/picture-book/
Comments: https://news.ycombinator.com/item?id=49618050
#HackerNews #topology #picturebook #rendering #mathematics #education #visualart
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A Topological Picture Book, Rendered
https://e-infinity.space/picture-book/
Comments: https://news.ycombinator.com/item?id=49618050
#HackerNews #topology #picturebook #rendering #mathematics #education #visualart
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Cos'hanno in comune i Manuali delle Giovani Marmotte e il matematico John Conway? Beh, la talpa del Perù del secondo manuale e i "germogli" di Conway sono la stessa cosa. Vediamo assieme di che si tratta! #matematica #johnconway #topology https://www.youtube.com/watch?v=9LKhw3uMv_E
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Cos'hanno in comune i Manuali delle Giovani Marmotte e il matematico John Conway? Beh, la talpa del Perù del secondo manuale e i "germogli" di Conway sono la stessa cosa. Vediamo assieme di che si tratta! #matematica #johnconway #topology https://www.youtube.com/watch?v=9LKhw3uMv_E
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Cos'hanno in comune i Manuali delle Giovani Marmotte e il matematico John Conway? Beh, la talpa del Perù del secondo manuale e i "germogli" di Conway sono la stessa cosa. Vediamo assieme di che si tratta! #matematica #johnconway #topology https://www.youtube.com/watch?v=9LKhw3uMv_E
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Cos'hanno in comune i Manuali delle Giovani Marmotte e il matematico John Conway? Beh, la talpa del Perù del secondo manuale e i "germogli" di Conway sono la stessa cosa. Vediamo assieme di che si tratta! #matematica #johnconway #topology https://www.youtube.com/watch?v=9LKhw3uMv_E
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The nuclear pore complex (7R5J & 7R5K) – one of the largest molecular machines in biology.
The nuclear pore complex is the gatekeeper of the cell nucleus – controlling everything that enters or leaves. We captured it in two states: open (dilated) and closed (constricted).
961665 quantum records
#StructuralBiology #Biophysics #Bioinformatics #Topology #InformationTheory #DNAFolding #ComputationalBiology #ComplexSystems #Genomics #OpenScience #EXXOGEN
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MVspa_ Stochastic processes
Стохастические процессы, Випадкові процеси
#Stochastic processes
#Стохастическиепроцессы, #Випадковіпроцеси
t.me/scilib_yura15cbx/230MVsa Statistics and applications
Статистика та додатки, Статистика и приложения
#Statistics
t.me/scilib_yura15cbx/229EM_ Mechanics of elastic materials
Механіка пружних матеріалів, Механика упругих материалов
t.me/scilib_yura15cbx/228MPd_ Dynamical systems
Динамические системы, Динамічні системи
#Dynamical systems
t.me/scilib_yura15cbx/227MNw_ Wavelets, signal processing
Вейвлети, обробка сигналів, Вейвлеты, обработка сигналов
#Wavelets, #signal processing
t.me/scilib_yura15cbx/226MNs_ Simulations of physics
Физические симуляции
t.me/scilib_yura15cbx/225MNl_ Numerical linear algebra
Числова лінійна алгебра, Численная линейная алгебра
t.me/scilib_yura15cbx/224MNf_ Finite elements
Конечные элементы, Скінченні елементи
t.me/scilib_yura15cbx/223MNd_ Numerical calculus
t.me/scilib_yura15cbx/222MDgt_ General topology
#topology
Общая топология, Загальна топологія
t.me/scilib_yura15cbx/221MDdg_ Differential geometry
Диференціальна геометрія, Дифференциальная геометрия
t.me/scilib_yura15cbx/220MDat_ Algebraic and differential topology
Алгебраическая и дифференциальная топология, Алгебраїчна та диференціальна топологія
t.me/scilib_yura15cbx/219MCv_ Variational calculus
Варіаційне числення, Вариационное исчисление
t.me/scilib_yura15cbx/218MCta_ Tensor calculus, forms
Тензорное исчисление, формы, Тензорне числення, форми
t.me/scilib_yura15cbx/217MCsf_ Special functions
Спеціальні функції, Специальные функции
t.me/scilib_yura15cbx/216MCf_ Functional analysis
Функциональный анализ, Функціональний аналіз
t.me/scilib_yura15cbx/215MCet_ Elementary calculus textbooks
Підручники з елементарного числення, Учебники по элементарному исчислению
t.me/scilib_yura15cbx/214MCde_ Differential equations
Дифференциальные уравнения, Диференціальні рівняння
#Differential equations
t.me/scilib_yura15cbx/213MCcf_ Continued fractions
Суцільні дроби, Непрерывные дроби
t.me/scilib_yura15cbx/212MCc_ Complex variable
Комплексная переменная, Комплексна змінна
t.me/scilib_yura15cbx/211MCat_ Advanced calculus
t.me/scilib_yura15cbx/210Asymptotics, perturbations
Асимптотика, збурення,
Асимптотика, возмущения
#Asymptotics, #perturbations
#Асимптотика, #збурення,
#Асимптотика, #возмущения
t.me/scilib_yura15cbx/209Group theory, Теория групп, Теорія груп
#Group theory, #Теориягрупп, #Теоріягруп
t.me/scilib_yura15cbx/208Algebra textbooks,
Підручники з алгебри,
Учебники по алгебре
t.me/scilib_yura15cbx/207Set theory,
Теория множеств, Теорія множин
#Set theory,
#Теория множеств,
t.me/scilib_yura15cbx/206Representation theory
Теорія репрезентації, Теория представлений
t.me/scilib_yura15cbx/205Quantum groups
#Quantum groups
Квантовые группы, Квантові групи
t.me/scilib_yura15cbx/204Mathematical logic
#Mathematical logic
Математична логіка, Математическая логика
t.me/scilib_yura15cbx/203Linear algebra
#Linear algebra
Линейная алгебра, Лінійна алгебра
t.me/scilib_yura15cbx/202Homology, Гомологія, Гомология
#Homology, #Гомологія, #Гомология
t.me/scilib_yura15cbx/201Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200Algebraic geometry
#Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200Finite groups
Скінченні групи, Конечные группы
t.me/scilib_yura15cbx/199Differential algebra
#Differential algebra
Дифференциальная алгебра, Диференціальна алгебра
t.me/scilib_yura15cbx/198Category theory
Теорія категорій, Теория категорий -
MVspa_ Stochastic processes
Стохастические процессы, Випадкові процеси
#Stochastic processes
#Стохастическиепроцессы, #Випадковіпроцеси
t.me/scilib_yura15cbx/230MVsa Statistics and applications
Статистика та додатки, Статистика и приложения
#Statistics
t.me/scilib_yura15cbx/229EM_ Mechanics of elastic materials
Механіка пружних матеріалів, Механика упругих материалов
t.me/scilib_yura15cbx/228MPd_ Dynamical systems
Динамические системы, Динамічні системи
#Dynamical systems
t.me/scilib_yura15cbx/227MNw_ Wavelets, signal processing
Вейвлети, обробка сигналів, Вейвлеты, обработка сигналов
#Wavelets, #signal processing
t.me/scilib_yura15cbx/226MNs_ Simulations of physics
Физические симуляции
t.me/scilib_yura15cbx/225MNl_ Numerical linear algebra
Числова лінійна алгебра, Численная линейная алгебра
t.me/scilib_yura15cbx/224MNf_ Finite elements
Конечные элементы, Скінченні елементи
t.me/scilib_yura15cbx/223MNd_ Numerical calculus
t.me/scilib_yura15cbx/222MDgt_ General topology
#topology
Общая топология, Загальна топологія
t.me/scilib_yura15cbx/221MDdg_ Differential geometry
Диференціальна геометрія, Дифференциальная геометрия
t.me/scilib_yura15cbx/220MDat_ Algebraic and differential topology
Алгебраическая и дифференциальная топология, Алгебраїчна та диференціальна топологія
t.me/scilib_yura15cbx/219MCv_ Variational calculus
Варіаційне числення, Вариационное исчисление
t.me/scilib_yura15cbx/218MCta_ Tensor calculus, forms
Тензорное исчисление, формы, Тензорне числення, форми
t.me/scilib_yura15cbx/217MCsf_ Special functions
Спеціальні функції, Специальные функции
t.me/scilib_yura15cbx/216MCf_ Functional analysis
Функциональный анализ, Функціональний аналіз
t.me/scilib_yura15cbx/215MCet_ Elementary calculus textbooks
Підручники з елементарного числення, Учебники по элементарному исчислению
t.me/scilib_yura15cbx/214MCde_ Differential equations
Дифференциальные уравнения, Диференціальні рівняння
#Differential equations
t.me/scilib_yura15cbx/213MCcf_ Continued fractions
Суцільні дроби, Непрерывные дроби
t.me/scilib_yura15cbx/212MCc_ Complex variable
Комплексная переменная, Комплексна змінна
t.me/scilib_yura15cbx/211MCat_ Advanced calculus
t.me/scilib_yura15cbx/210Asymptotics, perturbations
Асимптотика, збурення,
Асимптотика, возмущения
#Asymptotics, #perturbations
#Асимптотика, #збурення,
#Асимптотика, #возмущения
t.me/scilib_yura15cbx/209Group theory, Теория групп, Теорія груп
#Group theory, #Теориягрупп, #Теоріягруп
t.me/scilib_yura15cbx/208Algebra textbooks,
Підручники з алгебри,
Учебники по алгебре
t.me/scilib_yura15cbx/207Set theory,
Теория множеств, Теорія множин
#Set theory,
#Теория множеств,
t.me/scilib_yura15cbx/206Representation theory
Теорія репрезентації, Теория представлений
t.me/scilib_yura15cbx/205Quantum groups
#Quantum groups
Квантовые группы, Квантові групи
t.me/scilib_yura15cbx/204Mathematical logic
#Mathematical logic
Математична логіка, Математическая логика
t.me/scilib_yura15cbx/203Linear algebra
#Linear algebra
Линейная алгебра, Лінійна алгебра
t.me/scilib_yura15cbx/202Homology, Гомологія, Гомология
#Homology, #Гомологія, #Гомология
t.me/scilib_yura15cbx/201Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200Algebraic geometry
#Algebraic geometry
Алгебраическая геометрия, Алгебраїчна геометрія
t.me/scilib_yura15cbx/200Finite groups
Скінченні групи, Конечные группы
t.me/scilib_yura15cbx/199Differential algebra
#Differential algebra
Дифференциальная алгебра, Диференціальна алгебра
t.me/scilib_yura15cbx/198Category theory
Теорія категорій, Теория категорий -
Probability,
теорія ймовірностей, теория вероятностей
#Probability,
#теоріяймовірностей, #теориявероятностей
t.me/scilib_yura15cbx/193Number theory
Теория чисел, Теорія чисел
#Number theory
#Теориячисел, #Теоріячисел
t.me/scilib_yura15cbx/192References, Collected works
Література, Зібрання праць,
Ссылки, Собрание сочинений
t.me/scilib_yura15cbx/190Symmetry and groups
Симметрия и группы,
Симетрія і групи
#Symmetry
t.me/scilib_yura15cbx/189Philosophy of mathematics
Філософія математики, Философия математики
t.me/scilib_yura15cbx/188Mathematical physics
Математическая физика, Математична фізика
#Mathematical physics
#Математическаяфизика, #Математичнафізика
t.me/scilib_yura15cbx/187Optimization and control
Оптимізація та контроль, Оптимизация и контроль
t.me/scilib_yura15cbx/186Optimal control
Оптимальный контроль, Оптимальний контроль
#Optimal control
#Оптимальныйконтроль, #Оптимальнийконтроль
t.me/scilib_yura15cbx/185Numerical methods
Чисельні методи, Численные методы
#Numerical methods
#Чисельніметоди, #Численныеметоды
t.me/scilib_yura15cbx/184Lecture notes
Конспекты лекций, Конспект лекцiй
t.me/scilib_yura15cbx/183Encyclopaediae, School-level
Енциклопедії, Шкільний рівень
Энциклопедии, школьный уровень
t.me/scilib_yura15cbx/182Games, game theory
Ігри, теорія ігор
Игры, теория игр
#Games, #game theory
#Ігри, ₽теоріяігор
#Игры, #теорияигр
t.me/scilib_yura15cbx/181Geometry and topology
Геометрия и топология
Геометрія і топологія
#Geometry and #topology
#Геометрия и #топология
#Геометрія і #топологія
t.me/scilib_yura15cbx/180Biography, history
Биография, история
Біографія, історія
#Biography, #history
#Биография, #история
#Біографія, #історія
t.me/scilib_yura15cbx/178Mams_ Proceedings AMS
Праці AMS, Труды АМС
t.me/scilib_yura15cbx/177Algebra, Алгебра
#Algebra, #Алгебра
t.me/scilib_yura15cbx/176Optical devices
Оптика, оптические устройства, технологии, инжинерия
#Optical devices -
While teaching a course on algebraic theories last semester I mentioned at some point that the familiar bicomplete categories Top and Poset were not algebraic, but were topological. A student asked about this later on and I found that the #Wikipedia page on «topological category» pointed to categories enriched in Top, not categories with a forgetful functor to Set which is topological. While I have lost a lot of faith in Wikipedia recently, I am pleased to report that https://en.wikipedia.org/wiki/Topological_category is now a disambiguation page.
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James C. Scott et les sociétés anti-étatiques : Zomia comme art de la fuite
Dans The Art of Not Being Governed, James C. Scott inverse le récit classique de la civilisation : les peuples des montagnes ne seraient pas des “restes du passé”, mais des sociétés organisées pour échapper à l’État. #state #civilization #Scott #zomia #topology #history #anthropology #resistance Le livre de James C. Scott propose une thèse décisive : une grande partie des populations dites…
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Users Are Too Dependent on Centralized Techno-Fascist Corporate Structure to Ever Leave Discord
I’m watching people scatter into countless real-time chat alternatives to Discord after Discord started pulling the age-verification and age-gating card.
It’s very frustrating because people are entirely missing the point of a community and how social networks work. Real-time platforms and social media networks only work well when a large number of people share the same space at the same time. If everyone creates separate servers or competing apps, the result is fragmentation that makes it unviable.
One reason why Bluesky became so successful is the invitation and starter-pack move. It essentially allowed people to move collectively as cliques. Bluesky used invitations and starter packs to move groups of friends together. This kept communities intact. Moving as cliques preserves network structure, whereas random scattering does not. People aren’t do not seem to intend to move as cliques or subgraphs of networks off of Discord. And the whole reason people were on Discord was to host their communities, so an alternative becomes pointless if your community doesn’t remain intact.
Instead of an active, strongly connected, possibly distributed network, you get dozens of small pockets. I am referring to a potential distributed network rather than a single centralized platform, because Matrix is an example of a decentralized chat protocol. Not all alternatives have to be centralized like Discord. Technically, many older chat protocols, such as XMPP and IRC, are examples of federated real-time synchronous messaging. They allowed communication between users on different, independently operated servers. Federation means that multiple servers can interconnect so that users from separate networks can exchange messages with one another seamlessly.
Decentralized alternatives would not be a problem if people moved to the same distributed network as cohesive groups. However, what I am seeing is that people move in disconnected and stochastic ways to entirely separate distributed networks, so communities are not kept intact. For example, when people move to XMPP servers or Matrix servers, it bifurcates and disconnects social networks. Notice I said XMPP or Matrix, which logically means people are on Matrix but not XMPP, or they are on XMPP but not Matrix. That implies a person would need to be on both Matrix and XMPP to speak to their original community from Discord if it split down the middle. To synchronize conversations in chats, there would need to be a bridge. It’s a pretty complicated solution.
The likely outcome is that people will remain on the dominant platform because of its scale and structure. The deeper irony is that while people may want independence from corporate platforms, they often struggle to organize effectively without the centralized structure those platforms provide. They’ve become so dependent on corporate structures to support their communities that they have no clue how to organize their own social networks in a sustainable way.
I’ve always been an internet nerd, but most of my social life has been offline. I view my interactions with the social app layer of the internet as a game, so losing that domain of the Internet is not devastating to me.
I’ll give you an example. This is a WordPress site. You hear this insincere nostalgia from Millennials and Gen X for a simulacrum that never was, especially concerning forums. Check this out: when you go into the plugin installation section of WordPress, this is on the second row you see:
That means any WordPress site has the capability to host a forum. They’re nostalgic for a setup where you can use a simple install script on any hosting service to install WordPress. After that, you can then just add a plugin to turn it into a forum. Hell, they can do this on WordPress.com if they don’t want to self-host.
You can make a forum, but no one will use it because they’d rather use a centralized platform like Reddit. Users have become so dependent on corporations to structure and organize communities that they can’t do it themselves. It’s sort of like the cognitive debt that accrues when people outsource their thinking to AI.
The issue is not that forums are hard to host or create; rather, the issue is that people have become so dependent on centralized corporate structures that they can’t maintain or organize their own communities, which is why everyone ends up on Reddit or Discord. A reason I keep hearing for why people don’t want to leave Discord is that it’s hard to recreate the community structure that Discord’s features provide. They claim that they want independence from corporate platforms, but rely on the centralized structure those platforms provide to function socially.
People say they want decentralized freedom, but in practice they depend on centralized platforms to maintain social cohesion. Stochastically scattering to the digital winds of the noosphere destroys the very communities they’re trying to preserve.
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Your BlueSky Feed Is Porn You Didn’t Ask For Because Your Friends Are Gooners With a Severe Porn Addiction
A common complaint I see people make on Bluesky is: why am I being served so much porn or things I am not interested in? They will incorrectly believe that the algorithm is broken. It’s not broken. You didn’t know the people you knew as well as you thought you did. Porn addiction is a thing, and porn addiction is especially common with weebs. You’re seeing deranged shit because people you follow have porn addictions and are into deranged shit. So, though you may not be consuming porn, people in your network are. That activity kicks into your feeds.
The issue I have with that is that it essentially normalizes being sex pests in a space on the Internet. That sets the expectation that it is good—attractive, even—to act like that elsewhere. That expectation alienates relationships. Bluesky creates a cultural space that offers an unrealistic, bizarre representation of social relationships, which isolates and alienates the users who stay on there consuming erotica and porn like they do.
So, user repos in Bluesky have a property for likes. Bluesky’s underlying AT Protocol stores likes as first-class structured records in each user’s AT Protocol repository. In the AT Protocol lexicon, a like is an app.bsky.feed.like record type. Unlike a simple boolean flag on a post, it is its own record with a creation timestamp and a subject field that holds a strong reference to the liked record.
That strong reference is composed of an AT-URI and a CID. The AT-URI identifies the exact record in the network by DID, collection, and record key. The CID is a cryptographic content identifier that uniquely identifies the exact content of that liked record.
These like records exist under the app.bsky.feed.like namespace in the user’s repo. Bluesky’s repo model is built so that these repos are hosted on a user’s Personal Data Server and are publicly readable through the AT Protocol APIs. Because of that, the like record and its fields can be fetched, indexed, and used by any client or service that can query the protocol.
The protocol exposes operations like getLikes. This returns all of the like records tied to a particular subject’s AT-URI and CID. It also exposes getActorLikes. This returns all of the subject references a given actor has liked. Those API calls return structured like objects with timestamps and subject references directly from the public repository data.
Various feeds hosted by different PDSs use the likes property to construct the feeds that you see. Since the likes of people you follow are included in your social graph, along with your own likes, you’re going to get served the porn they are consuming. Because likes are public and anyone can write an algorithm to see everyone’s likes, you can clearly see just how much porn people are consuming.
Honestly, what started to turn my stomach about the people on Bluesky is how they behave across different contexts. If you look through the records of the posts they interact with, you’ll see them engaging with political posts in the replies like a normal person. Then, when you look through their AT Protocol records, you see hours and hours of them interacting with every kind of porn imaginable. I am not exaggerating. Hours of likes for porn posts within 1–10 minutes of each other. Am I sex-negative? A prude? No, this site is filled with furry, gay bara porn, lol. You can have a drink without being an alcoholic. The problem with these people is like people who can’t have one drink without drinking the whole fucking day; they can’t consume porn in healthy ways.
I think people assume that their feed is customized for them and based on their likes. No—feeds are generalized based on what everyone likes and then served to your subgraph. It’s not just about who you follow; it’s about who they follow. So if you follow someone who follows a lot of people with porn addictions, you will see porn. Bluesky isn’t weighting the algorithm to do this. Basically, it’s the people in your social network with furry, hentai, or trans porn addictions who are driving it.
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BlueSky’s Solution To Moderating Is Moderating Without Moderating via Social Proximity
I have noticed a lot of people are confused about why some posts don’t show up on threads, though they are not labeled by the moderation layer. Bluesky has begun using what it calls social neighborhoods (or network proximity) as a ranking signal for replies in threads. Replies from people who are closer to you in the social graph, accounts you follow, interact with, or share mutual connections with, are prioritized and shown more prominently. Replies from accounts that are farther away in that network are down-ranked. They are pushed far down the thread or placed behind “hidden replies.”
Each person gets their own unique view of a thread based on their social graph. It creates the impression that replies from distant users simply don’t exist. This is true even though they’re still technically public and viewable if you expand the thread or adjust filters. Bluesky is explicitly using features of subgraphs to moderate without moderating. Their reasoning is that if you can’t see each other, you can’t harass each other. Ergo, there is nothing to moderate.
Bluesky mentions that here:
https://bsky.social/about/blog/10-31-2025-building-healthier-social-media-update
As a digression, I’m not going to lie: I really enjoyed working on software built on the AT protocol, but their fucking users are so goddamn weird. It’s sort of like enjoying building houses, but hating every single person who moves into them. But, you don’t have to deal with them because you’re just the contractor. That is how I feel about Bluesky. I hate the people. I really like the protocol and infrastructure.
I sort of am a sadist who does enjoy drama, so I do get schadenfreude from people with social media addictions and parasocial fixations who reply to random people on Bluesky, because they don’t realize their replies are disconnected from the author’s thread unless that person is within their network. They aren’t part of the conversation they think they are. They’re algorithmically isolated from everyone else. Their replies aren’t viewable from the author’s thread because of how Bluesky handles social neighborhoods.
Bluesky’s idea of social neighborhoods is about grouping users into overlapping clusters based on real interaction patterns rather than just the follow graph. Unlike Twitter, it does not treat the network as one big public square. Instead, it models networks of “social neighborhoods” made up of people you follow, people who follow you, people you frequently interact with, and people who are closely connected to those groups. They’re soft, probabilistic groupings rather than strict labels.
Everyone does not see the same replies. Bluesky is being a bit vague with “hidden.” Hidden means your reply is still anchored to the thread and can be expanded. There is another way Bluesky can handle this. Bluesky uses social neighborhoods to judge contextual relevance. Replies from people inside or near your social neighborhood are more likely to be shown inline with a thread, expanded by default, or served in feeds. Replies from outside your neighborhood are still public and still indexed, but they’re treated as lower-context contributions.
Basically, if you reply to a thread, you will see it anchored to the conversation, and everyone will see it in search results, as a hashtag, or from your profile, but it will not be accessible via the thread of the person you were replying to. It is like shadow-banning people from threads unless they are strongly networked.
Because people have not been working with the AT Protocol like I have, they assume they are shadow-banned across the entire Bluesky app view. No—everyone is automatically shadow-banned from everyone else unless they are within the same social neighborhood. In other words, you are not part of the conversation you think you are joining because you are not part of their social group.
Your replies will appear in profiles, hashtag feeds, or search results without being visually anchored to the full thread. Discovery impressions are neighborhood-agnostic: they serve content because it matches a query, tag, or activity stream. Once the reply is shown, the app then decides whether it’s worth pulling in the rest of the conversation for you. If the original author and most participants fall outside your neighborhood, Bluesky often chooses not to expand that context automatically.
Bluesky really is trying to avoid having to moderate, so this is their solution. Instead of banning or issuing takedown labels to DIDs, the system lets replies exist everywhere, but not in that particular instance of the thread.
I find this ironic because a large reason why many people are staying on Bluesky and not moving to the fediverse—thank God, because I do not want them there—is discoverability, virality, and engagement.
In case anyone is asking how I know so much about how these algorithms work: I was a consultant on a lot of these types of algorithms, so I certainly hope I’d know how they work, lol. No, you get no more details about the work I’ve done. I have no hand in the algorithm Bluesky is using, but I have proposed and implemented that type of algorithm before.
I have an interest in noetics and the noosphere. A large amount of my ontological work is an extension of my attempts to model domains that have no spatial or temporal coordinates. The question is how do you generalize a metric space that has no physically, spatial properties. I went to school to try to formalize those ideas. Turns out they’re rather useful for digital social networks, too. The ontological analog to spatial distance, when you have no space, is a graph of similarities.
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The Virulent Infection of BlueSky by Extremely Online, Brain-Rotten Zombies from X Continues
So, it appears a new migration from Twitter to Bluesky is underway. It appears to be some of the most virulent former 4chan users possible. Yep, I got off Bluesky just in time, lol. I’ve been keeping tabs on a particularly virulent and toxic subgraph on Twitter for years. It pretty much stayed off Bluesky because they couldn’t act like abusive dumpster fires there. Welp, looks like they’re becoming more active on Bluesky. It’s not looking good over there.
That they are on the move says something. It’s sort of like how the US is suddenly a place that is hospitable to measles. It was all but eradicated here.
My husband likes to say that you can tell where not to be by where I am looking from somewhere else. I like fires. So if I am observing your platform or community from a distance, you probably don’t want to be there.
Edit:
I had originally posted the above on a now-defunct federated blog. It got blasted to Mastodon. Someone replied and asked what I think is causing this. I debated actually answering, then decided that I’ve had enough of the dumpster fire that is social media. I decided not to wade through social media tech discourse into what will mostly likely be an Internet argument with a complete stranger. I am a techie dragon, and I engage with things to learn how they work so I can tinker with them. I only engaged with tech discourse to get my hands on how the tech works. There’s nothing in it for me to be part of larger conversations. Arguing with random strangers on social media is not an epistemically useful format. I do think I should answer, though. Just on my blog.
I treat social media like I do an addictive substance. I do not believe in abstinence, but I do believe in harm-reduction paradigms, so when I see everyone overdosing on social media, I pull back and shut down a lot of accounts. The Fediverse instance where the first part of this blog post was posted has been taken down, moved to this blog, and this section appended to it.
I often use the word weeb pejoratively. Here, I am using it categorically. There really isn’t an “official” name outside of otaku or weeb culture. I am at the fringes and intersections of it as a furry. My husband is a millennial weeb. With that being said—
The migration is in large part because Bluesky is capturing the otaku/weeb niche of X. X hosted networks that were ecosystems of “anime fans.” These included anime and manga artists, doujin and hentai artists, VTuber fans, NSFW illustrators, fandom shitposters, niche fetish communities, and other chronically and extremely online content creators and influencers. That culture relied heavily on timelines, informal networks, and discovery through reposts, replies, and algorithmic amplification.
Elon Musk pretty much destabilized X’s ecosystems and social networks from multiple directions at once. Algorithm changes made reach inconsistent. Moderation created anxiety and uncertainty about what would get suppressed or unintentionally “viral”. Bots, engagement farming, and blue-check reply spam actively poisoned fandom conversations.
Bluesky is the memetic and cultural progeny of early imageboard cultures. I conducted a phylogenetic analysis of the memetics, which you can check out here:
Bluesky is a competitor of X for otaku and fandom communities. Bluesky has a lot of the aspects of old Twitter dynamics around which fandom culture evolved. Recently, Bluesky introduced something big in those communities: going live. Since X is no longer habitable for weebs, they are moving to Bluesky.
For example, the AT protocol already has PinkSea:
And, of course, there is WAFRN:
I cope and deal with issues via personal, private sublimation and not so much exhibitionism of my art or consumption of art. So, while I do make comic books and do a shit ton of weeby art, it’s for the purpose of sublimation, so I’m not too interested in being a part of a community. That’s a large reason I am not active in those spaces. I’m quite cynical, in general, so I am suspicious of any community — and I mean any community, at all. Honestly, I am mildly contemptuous of mass participation or any sense of belonging. So, my art stays private, because it is created for me – and just me.
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The Virulent Infection of BlueSky by Extremely Online, Brain-Rotten Zombies from X Continues
So, it appears a new migration from Twitter to Bluesky is underway. It appears to be some of the most virulent former 4chan users possible. Yep, I got off Bluesky just in time, lol. I’ve been keeping tabs on a particularly virulent and toxic subgraph on Twitter for years. It pretty much stayed off Bluesky because they couldn’t act like abusive dumpster fires there. Welp, looks like they’re becoming more active on Bluesky. It’s not looking good over there.
That they are on the move says something. It’s sort of like how the US is suddenly a place that is hospitable to measles. It was all but eradicated here.
My husband likes to say that you can tell where not to be by where I am looking from somewhere else. I like fires. So if I am observing your platform or community from a distance, you probably don’t want to be there.
Edit:
I had originally posted the above on a now-defunct federated blog. It got blasted to Mastodon. Someone replied and asked what I think is causing this. I debated actually answering, then decided that I’ve had enough of the dumpster fire that is social media. I decided not to wade through social media tech discourse into what will mostly likely be an Internet argument with a complete stranger. I am a techie dragon, and I engage with things to learn how they work so I can tinker with them. I only engaged with tech discourse to get my hands on how the tech works. There’s nothing in it for me to be part of larger conversations. Arguing with random strangers on social media is not an epistemically useful format. I do think I should answer, though. Just on my blog.
I treat social media like I do an addictive substance. I do not believe in abstinence, but I do believe in harm-reduction paradigms, so when I see everyone overdosing on social media, I pull back and shut down a lot of accounts. The Fediverse instance where the first part of this blog post was posted has been taken down, moved to this blog, and this section appended to it.
I often use the word weeb pejoratively. Here, I am using it categorically. There really isn’t an “official” name outside of otaku or weeb culture. I am at the fringes and intersections of it as a furry. My husband is a millennial weeb. With that being said—
The migration is in large part because Bluesky is capturing the otaku/weeb niche of X. X hosted networks that were ecosystems of “anime fans.” These included anime and manga artists, doujin and hentai artists, VTuber fans, NSFW illustrators, fandom shitposters, niche fetish communities, and other chronically and extremely online content creators and influencers. That culture relied heavily on timelines, informal networks, and discovery through reposts, replies, and algorithmic amplification.
Elon Musk pretty much destabilized X’s ecosystems and social networks from multiple directions at once. Algorithm changes made reach inconsistent. Moderation created anxiety and uncertainty about what would get suppressed or unintentionally “viral”. Bots, engagement farming, and blue-check reply spam actively poisoned fandom conversations.
Bluesky is the memetic and cultural progeny of early imageboard cultures. I conducted a phylogenetic analysis of the memetics, which you can check out here:
Bluesky is a competitor of X for otaku and fandom communities. Bluesky has a lot of the aspects of old Twitter dynamics around which fandom culture evolved. Recently, Bluesky introduced something big in those communities: going live. Since X is no longer habitable for weebs, they are moving to Bluesky.
For example, the AT protocol already has PinkSea:
And, of course, there is WAFRN:
I cope and deal with issues via personal, private sublimation and not so much exhibitionism of my art or consumption of art. So, while I do make comic books and do a shit ton of weeby art, it’s for the purpose of sublimation, so I’m not too interested in being a part of a community. That’s a large reason I am not active in those spaces. I’m quite cynical, in general, so I am suspicious of any community — and I mean any community, at all. Honestly, I am mildly contemptuous of mass participation or any sense of belonging. So, my art stays private, because it is created for me – and just me.
-
The Virulent Infection of BlueSky by Extremely Online, Brain-Rotten Zombies from X Continues
So, it appears a new migration from Twitter to Bluesky is underway. It appears to be some of the most virulent former 4chan users possible. Yep, I got off Bluesky just in time, lol. I’ve been keeping tabs on a particularly virulent and toxic subgraph on Twitter for years. It pretty much stayed off Bluesky because they couldn’t act like abusive dumpster fires there. Welp, looks like they’re becoming more active on Bluesky. It’s not looking good over there.
That they are on the move says something. It’s sort of like how the US is suddenly a place that is hospitable to measles. It was all but eradicated here.
My husband likes to say that you can tell where not to be by where I am looking from somewhere else. I like fires. So if I am observing your platform or community from a distance, you probably don’t want to be there.
Edit:
I had originally posted the above on a now-defunct federated blog. It got blasted to Mastodon. Someone replied and asked what I think is causing this. I debated actually answering, then decided that I’ve had enough of the dumpster fire that is social media. I decided not to wade through social media tech discourse into what will mostly likely be an Internet argument with a complete stranger. I am a techie dragon, and I engage with things to learn how they work so I can tinker with them. I only engaged with tech discourse to get my hands on how the tech works. There’s nothing in it for me to be part of larger conversations. Arguing with random strangers on social media is not an epistemically useful format. I do think I should answer, though. Just on my blog.
I treat social media like I do an addictive substance. I do not believe in abstinence, but I do believe in harm-reduction paradigms, so when I see everyone overdosing on social media, I pull back and shut down a lot of accounts. The Fediverse instance where the first part of this blog post was posted has been taken down, moved to this blog, and this section appended to it.
I often use the word weeb pejoratively. Here, I am using it categorically. There really isn’t an “official” name outside of otaku or weeb culture. I am at the fringes and intersections of it as a furry. My husband is a millennial weeb. With that being said—
The migration is in large part because Bluesky is capturing the otaku/weeb niche of X. X hosted networks that were ecosystems of “anime fans.” These included anime and manga artists, doujin and hentai artists, VTuber fans, NSFW illustrators, fandom shitposters, niche fetish communities, and other chronically and extremely online content creators and influencers. That culture relied heavily on timelines, informal networks, and discovery through reposts, replies, and algorithmic amplification.
Elon Musk pretty much destabilized X’s ecosystems and social networks from multiple directions at once. Algorithm changes made reach inconsistent. Moderation created anxiety and uncertainty about what would get suppressed or unintentionally “viral”. Bots, engagement farming, and blue-check reply spam actively poisoned fandom conversations.
Bluesky is the memetic and cultural progeny of early imageboard cultures. I conducted a phylogenetic analysis of the memetics, which you can check out here:
Bluesky is a competitor of X for otaku and fandom communities. Bluesky has a lot of the aspects of old Twitter dynamics around which fandom culture evolved. Recently, Bluesky introduced something big in those communities: going live. Since X is no longer habitable for weebs, they are moving to Bluesky.
For example, the AT protocol already has PinkSea:
And, of course, there is WAFRN:
I cope and deal with issues via personal, private sublimation and not so much exhibitionism of my art or consumption of art. So, while I do make comic books and do a shit ton of weeby art, it’s for the purpose of sublimation, so I’m not too interested in being a part of a community. That’s a large reason I am not active in those spaces. I’m quite cynical, in general, so I am suspicious of any community — and I mean any community, at all. Honestly, I am mildly contemptuous of mass participation or any sense of belonging. So, my art stays private, because it is created for me – and just me.
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River Network Routing And Discharge Partitioning On A Multichannel River Network
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https://doi.org/10.1029/2025WR041417 <-- shared paper
--
"... KEY POINTS:
• River multifurcation pathways were identified in a vector river network globally
• A multifurcation scheme was added to a river network routing model to split river discharge at divergences
• Accounting for multichannels improved discharge accuracy and resulted in earlier arrival of flood waves downstream of divergences…”
#GIS #spatial #mapping #spatialanalysis #spatiotemporal #model #modeling #water #hydrology #river #stream #watercourse #floods #flooding #risk #hazard #benefit #network #segment #downstream #upstream #braiding #sinuosity #delta #complexity #flowdirection #remotesensing #confluence #bifurcations #divergence #multifurcation #discharge #topology #routing #global #landsurface #Pfafstetter #basin -
"Encode #spatial data as #topology in #Python!
With #topojson it is possible to reduce the size of your spatial data. Mostly by orders of magnitude."
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Differential Propositional Calculus • 10
Special Classes of Propositions (cont.)
Let’s pause at this point and get a better sense of how our special classes of propositions are structured and how they relate to propositions in general. We can do this by recruiting our visual imaginations and drawing up a sufficient budget of venn diagrams for each family of propositions. The case for 3 variables is exemplary enough for a start.
Linear Propositions
The linear propositions, may be written as sums:
One thing to keep in mind about these sums is that the values in are added “modulo 2”, that is, in such a way that
In a universe of discourse based on three boolean variables, the linear propositions take the shapes shown in Figure 8.
At the top is the venn diagram for the linear proposition of rank 3, which may be expressed by any one of the following three forms.
Next are the venn diagrams for the three linear propositions of rank 2, which may be expressed by the following three forms, respectively.
Next are the three linear propositions of rank 1, which are none other than the three basic propositions,
At the bottom is the linear proposition of rank 0, the everywhere false proposition or the constant function, which may be expressed by the form or by a simple
Resources
cc: Academia.edu • Cybernetics • Structural Modeling • Systems Science
cc: Conceptual Graphs • Laws of Form • Mathstodon • Research Gate#Amphecks #Animata #BooleanAlgebra #BooleanFunctions #CSPeirce #CactusGraphs #CategoryTheory #Change #Cybernetics #DifferentialAnalyticTuringAutomata #DifferentialCalculus #DifferentialLogic #DiscreteDynamics #EquationalInference #FunctionalLogic #GraphTheory #Hologrammautomaton #IndicatorFunctions #InquiryDrivenSystems #Leibniz #Logic #LogicalGraphs #Mathematics #MinimalNegationOperators #PropositionalCalculus #Time #Topology #Visualization
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Read for free ahead of print! "The Stability of Competitive Metacommunities Is Insensitive to Dispersal Connectivity in a Fluctuating Environment" by Yuka Suzuki and Evan P. Economo https://www.journals.uchicago.edu/doi/10.1086/729601
#metacommunity #dispersal #fluctuation #SpatialStructure #Topology #NetworkAnalysis, #Synchronization #EnvironmentalNoise
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Christian Pfleiderer, Professor of #Topology of Correlated Systems, is the new Scientific Director of Research Neutron Source Heinz Maier-Leibnitz (FRM II) from January 1, 2024. 👏 He aims to make the research accessible to the entire #scientificcommunity: http://go.tum.de/509989
📷A.Eckert
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The name for the algebraic structure consisting of a set \(A\) equipped with a binary operation \(f\colon A^2\to A\) which is not assumed to be commutative, associative, etc. has an interesting history. As far as I can tell, this sort of algebra was originally known as a "groupoid", and you can find recent literature using the term in that way. However, Nicolas Bourbaki called a set with a single binary operation a "magma" in his Éléments de mathématique and this name came to be used when there might be confusion with the newer topological use of "groupoid" to mean a category whose morphisms are all invertible. A third contender is "binar". I don't know the history of this one but it seems reasonable to me.
I prefer "magma" myself. I don't know what a "lava" or a "volcano" should be nor have I had the audacity to try to name something like this in the literature. One reason I prefer "magma" is that I can talk about a set \(A\) equipped with a single \(n\)-ary operation \(f\colon A^n\to A\) as an "\(n\)-ary magma" (or just "\(n\)-magma" or even "magma").