What Really Motivates People Is Passion

Originally a Twitter Thread, with the help of Thread Reader

Baldolino Calvino🏳️‍🌈🚩🇧🇷✨♻️🌱

Oct 1 • 15 tweets • 4 min read

Fantasy is not science, nor philosophy, and not real (of course). This may seem obvious, but what I am trying to do is creating an exact, non-contradictory definition of fantasy, not as an art genre, but as an object of study. Not by science, but by fantastic natural history.

Fantasy - Wikipedia

"Fantasy is a genre of speculative fiction involving magical elements, typically set in a fictional universe and sometimes inspired by mythology and folklore."

Fantasy, Magic (not meaning prestidigitation), Mythology, and Folklore can be understood as equivalent, overlaping concepts. Wikipedia's entry is mostly tautological, circular, thus.

However, this is an article about the artistic genre, and one could say that it refers to art expression (written, musical, cinematic, other) that uses these references. This is enough for this use case, but we do not advance in an objective conceptualization of fantasy.

Fantasy (psychology) - Wikipedia

"(...) fantasy is a broad range of mental experiences, mediated by the faculty of imagination in the human brain, and marked by an expression of certain desires through vivid mental imagery."

This entry about the concept of fantasy in psychology gives a more elaborared view of it. However, what differentiates fantasy from other instances of human creativjty? The article continues: "Fantasies are associated with scenarios that are absolutely impossible."

Wikipedia's entry on Fantasy (psychology) does not give any reference to this concept, and proceeds listing the importance of Fantasy for various theoretical approaches (Freud, Klein, Lacan), or pathologies (narcissistic personality disorder, schizophrenia). It is not unified.

More revealing is Wikipedia's "History of Fantasy" (about the literary genre).

" (...) the supernatural and the fantastic were an element of literature from its beginning. The modern genre is distinguished from tales and folklore (...)"

It makes a clear distintion between ancient myths and folklore, and so-called "modern fantasy", whose first explicit representant was Scottish author George MacDonald in the late XIX century, with his novels "The Princess and the Goblin" and "Phantastes".

Important precursors were Dickens, Thackeray, Andersen, Ruskin, Morris. And MacDonald's work enormously influenced Tolkien and Lewis. One key word in this historic description of Fantasy is "speculative". And a defining characteristic of modern fantasy is the "fantasy world".

Distinctive differences of modern fantasy are the postulate of a secondary fantasy world apart from reality; fictitious by design; and narratives from a (group of) author(s) with an interpretative aim. Myths or folklore does not have any of these characteristics.

The entry goes on in a detailed description of the development of Fantasy as a literary genre, since writings about tales and legends from Middle Ages. However, one fun example of how medieval mind understood the fantastic can be seen in the novel "Baudolino" by Umberto Eco.

Most of this Wikipedia's entry is based upon https://twitter.com/john_clute and John Grant's https://sf-encyclopedia.com/fe/, published in 1997, and fully available on the internet.

More to come, be patient.

magic is everywhere

The mythical fox // Dennis Lehtonen

In Finnish the word for northern lights is ”revontulet” and it directly translates to ”fox fires.” According to the old mythology when it runs along the tundra, the fox’s flaming tail sweeps snowflakes into the sky and the fur scratches the trees, setting the skies on fire. That is how the northern lights are created. 

Ever had issues picturing the ventricular system of the brain? 

These are some nice illustrations that I find very helpful because it gives me an idea of how it all looks 3D

My new Grass & Field’s brush pack is officially out for Photoshop CC, Procreate, and Clip Studio Paint! 

You can download it from this page (click!)

Like all my brush packs it is free, with tips welcome but optional. You can use these brushes in anything - personal work, freelance work, professional work, commercial work - including things you sell, no license required. Demo videos are linked on the product page. Enjoy!!

The classical nova remnant GK Persei, as seen by NASA’s Chandra X-ray Observatory.

Image credit: NASA / Chandra x-ray Observatory

Detecting new particles around black holes with gravitational waves

Clouds of ultralight particles can form around rotating black holes. A team of physicists from the University of Amsterdam and Harvard University now show that these clouds would leave a characteristic imprint on the gravitational waves emitted by binary black holes.

Black holes are generally thought to swallow all forms of matter and energy surrounding them. It has long been known, however, that they can also shed some of their mass through a process called superradiance. While this phenomenon is known to occur, it is only effective if new, so far unobserved particles with very low mass exist in nature, as predicted by several theories beyond the Standard Model of particle physics.

Ionizing gravitational atoms When mass is extracted from a black hole via superradiance, it forms a large cloud around the black hole, creating a so-called gravitational atom. Despite the immensely larger size of a gravitational atom, the comparison with sub-microscopic atoms is accurate because of the similarity of the black hole plus its cloud with the familiar structure of ordinary atoms, where clouds of electrons surround a core of protons and neutrons.

In a publication that appeared in Physical Review Letters this week, a team consisting of UvA physicists Daniel Baumann, Gianfranco Bertone, and Giovanni Maria Tomaselli, and Harvard University physicist John Stout, suggest that the analogy between ordinary and gravitational atoms runs deeper than just the similarity in structure. They claim that the resemblance can in fact be exploited to discover new particles with upcoming gravitational wave interferometers.

In the new work, the researchers studied the gravitational equivalent of the so-called ‘photoelectric effect’. In this well-known process, which for example is exploited in solar cells to produce an electric current, ordinary electrons absorb the energy of incident particles of light and are thereby ejected from a material – the atoms ‘ionize’. In the gravitational analogue, when the gravitational atom is part of a binary system of two heavy objects, it gets perturbed by the presence of the massive companion, which could be a second black hole or a neutron star. Just as the electrons in the photoelectric effect absorb the energy of the incident light, the cloud of ultralight particles can absorb the orbital energy of the companion, so that some of the cloud gets ejected from the gravitational atom.

Finding new particles The team demonstrated that this process may dramatically alter the evolution of such binary systems, significantly reducing the time required for the components to merge with each other. Moreover, the ionization of the gravitational atom is enhanced at very specific distances between the binary black holes, which leads to sharp features in the gravitational waves that we detect from such mergers. Future gravitational wave interferometers – machines similar to the LIGO and Virgo detectors that over the past few years have shown us the first gravitational waves from black holes – could observe these effects. Finding the predicted features from gravitational atoms would provide distinctive evidence for the existence of new ultralight particles.

IMAGE…An atom in the sky. If new ultralight particles exist, black holes would be surrounded by a cloud of such particles that behaves surprisingly similar to the cloud of electrons in an atom. When another heavy object spirals in and eventually merges with the black hole, the gravitational atom gets ionized and emits particles just like electrons are emitted when light is shone onto a metal. CREDIT UvA Institute of Physics

Em homenagem ao renomado cientista Humberto Maturana, que nos deixou em 6 de maio de 2021, lembremos de sua vida e legado marcantes. Nascido no Chile, Maturana iniciou sua jornada acadêmica na Universidade do Chile, onde desenvolveu um profundo interesse pela biologia. Sua paixão pelo estudo da vida o levou a buscar conhecimento além das fronteiras do seu país.

Maturana teve a oportunidade de aprimorar sua formação em neurofisiologia no University College London, com uma bolsa da Fundação Rockefeller. Mais tarde, ele prosseguiu seus estudos na Universidade de Harvard, onde obteve seu doutorado em Biologia. Sua busca incessante pelo entendimento da complexidade da vida o levou a colaborar com Jerome Lettvin no Instituto de Tecnologia de Massachusetts (MIT). Com ele, Maturana foi co-autor da mais icônica publicação de Lettvin, “What the frog’s eyes tells the frog’s brain?”.

Após suas experiências internacionais, Maturana retornou ao Chile para ocupar uma cátedra em sua alma mater, a Universidade do Chile. Lá, ele continuou a influenciar a comunidade científica e intelectual por décadas. Sua abordagem inovadora para entender a natureza da vida e a percepção humana deixou uma marca indelével na biologia e além.

Um marco significativo em sua carreira foi a parceria com Francisco Varela na criação do conceito revolucionário da “autopoiese” no livro “De máquinas y seres vivos: Una teoría sobre la organización biológica” (1973). A teoria da autopoiese descreve a capacidade dos seres vivos de se autorreproduzirem e se manterem como entidades organizadas. Essa ideia inovadora foi um avanço fundamental no entendimento da complexidade da vida e teve um impacto profundo em diversas áreas do conhecimento.

Além das suas contribuições na área da biologia e da teoria da autopoiese, Humberto Maturana também é reconhecido por suas visões precursoras sobre cognição e inteligência, que atualmente desempenham um papel fundamental no estudo da inteligência artificial.

Ao longo de sua carreira, Maturana explorou a natureza da cognição humana e questionou as noções tradicionais de inteligência. Ele argumentou que a cognição não é apenas um processo mental individual, mas está enraizada na interação entre um organismo e o seu ambiente. Essa perspectiva revolucionária influenciou o campo da ciência cognitiva e estabeleceu as bases para uma compreensão mais profunda da inteligência.

Maturana antecipou conceitos que hoje são amplamente discutidos, como a importância do contexto na cognição, a relevância da autorganização na inteligência e a ideia de que a inteligência não é exclusivamente humana. Sua abordagem holística e sua ênfase na relação entre o organismo e o ambiente ajudaram a moldar os estudos sobre inteligência artificial, inspirando pesquisadores a considerarem a interação e a adaptação dos sistemas inteligentes ao seu contexto.

A compreensão de Maturana sobre cognição e inteligência oferece insights valiosos para o desenvolvimento de sistemas de inteligência artificial mais sofisticados. Seu trabalho desafia as abordagens tradicionais, destacando a importância de considerar o contexto, a dinâmica dos sistemas vivos e a interação entre diferentes agentes.

Assim, o legado intelectual de Humberto Maturana transcende os limites da biologia, impactando profundamente o estudo da cognição e inteligência. Sua visão pioneira e suas contribuições continuam a influenciar e inspirar cientistas, pesquisadores e estudiosos que buscam desvendar os segredos da mente e criar sistemas de inteligência artificial mais eficazes e adaptáveis.

Por fim, é importante mencionar que Humberto Maturana desenvolveu uma abordagem da biologia da cognição que não se limitava apenas aos aspectos teóricos, mas também tinha profundas implicações éticas e filosóficas. Sua visão estava firmemente ancorada em uma ética participativa e coletiva, na qual o compartilhamento de um mundo emocional desempenha um papel fundamental.

Maturana acreditava que o afeto é um elemento central que nos conecta a todos os seres vivos e influencia nossas interações com o mundo ao nosso redor. Essa perspectiva ressalta a importância de considerarmos não apenas a dimensão cognitiva, mas também as dimensões emocionais e relacionais da nossa existência.

Ao destacar a importância do afeto e do compartilhamento de um mundo emocional, Maturana nos convida a refletir sobre como nossas ações e escolhas afetam não apenas a nós mesmos, mas também os outros seres vivos e o meio ambiente. Sua abordagem nos lembra da interconexão profunda que temos com o mundo e a responsabilidade que temos de agir de maneira ética e sustentável.

Portanto, o trabalho de Humberto Maturana transcende os limites da ciência e nos convida a repensar nossa relação com o mundo e com os outros seres vivos. Sua visão holística, ancorada na ética participativa e no compartilhamento de um mundo emocional, nos lembra da importância de cultivarmos uma consciência coletiva e de buscarmos formas mais harmoniosas e responsáveis de interagir com o nosso planeta e com todas as formas de vida que o habitam.

Humberto Maturana será sempre lembrado como um dos pensadores mais brilhantes e visionários da nossa era. Sua dedicação em explorar os mistérios da vida, combinada com sua habilidade de comunicar ideias complexas de forma clara e acessível, inspirou inúmeras mentes ao redor do mundo. Sua influência continua a ecoar nas áreas da biologia, neurociência, filosofia e outras disciplinas relacionadas.

Hoje, prestamos nossa sincera homenagem a Humberto Maturana e seu impacto duradouro no campo científico e intelectual. Sua busca por compreender a vida de maneira holística e suas contribuições para a teoria da autopoiese continuarão a guiar as mentes curiosas e inspirar novas descobertas. Que sua memória e seu legado continuem a iluminar o caminho para futuras gerações de cientistas e estudiosos.

More large VtM doodle dumps–mixed of old and new, you can tell when I finally got a visual reference of the guy–this one specifically starring Manuel’s Ventrue employer (and slow burn love interest): Rosario de Angelis (who belongs to @bettiqua)! 

While Manuel acts as Rosario’s loyal ghoul and right hand man around New York, these two have a very messy history with each other that they’re only recently beginning to chisel away at after years of spiteful miscommunication and misunderstandings. A very simple summary of them would be that they’re two vulnerable men who have been hurt in the past and have been too prideful (and scared) to want that to happen to them again, only now discovering this about the other to the point they can begin to truly connect.

In short: they’re two idiots in love (even if one party is aware of their feelings but don’t see the other returning it, while the other refuses to believe they are). A little toxic but suited perfectly for each other.

I'd like to call the attention of you in the audience for this terrible disease. Help to raise awareness, share.

https://www.academia.edu/resource/work/84103601

academia.edu

A pictorial review of pediatric brain tumor response assesment, part one

Diffuse midline gliomas (DMGs) are a type of brain tumor located in the midline of the brain, characterized by complex molecular characteris

炎麒-Enki-