Generations influence each other. That’s a very simple general statement. Biographies, auto-biographies and life course research have all established sometimes more, sometimes less direct influences between the generations. The exhibition “A partir d’elle. Artists and their Mother“, curated by Julie Héraut, combines literature, photo and video that speak to the rather complex psychological or sociological issue. Visits in 2025 available at Stichting A, Brussels.
The starting point of the inquiry into the nature of photography by Roland Barth is chosen like an investigation into a crime. Sophie Létourneau had written an essay which proposes to read the original text by Barthes from this perspective. The artists in the exhibition seem to follow this process of asking themselves what their relationship to their mother is like and how to represent this in an artistic form.
A life course perspective, which takes images or videos with 10 or about 20 years difference, offers a kind of analytical as well as artificialized vision of the evolution of the artists’ relationships with their mother. Realistic images with a morphing backwards from old to young is presented next to images confronting young and old next to each other. “Words don’t come easy to me” could be the title of one of the videos where a young artist has a particularly hard time to talk to his/her mother.
Just after the celebrating Franz Kafka last year and his famous “Letter to my father”, the inquiry into artists and their mothers complements the analytical and artistic vision and interpretations of the child and parent intergenerational relationship. 
Hallucinations
In the 21st century hallucinations have become a daily experience. The origins of the word can be followed back at least to the Latin verb “alucinor”, best translated with “to hallucinate”. As a verb to can conjugate it, meaning that I can do it, you can do it, s/he can do it, and we may do it in groups. Roman emperors did it, American presidents do it and, of course, AI does it. Hence, it is a great subject to study.
In “Nature” 2025 we find ways to limit hallucinations of AI systems. The strategy consists mainly in repeated queries of the same type, but from different angles. It is a bit like cubism applied to informatics. On “github.com” we can follow the rankings of AI-models using LLMs based on the “hallucination-leaderboard” developed by Vectara. On “huggingface.com” you can test the Hughes Hallucination Evaluation Model. For example it is possible to run a test of your own small text documents (just like any blog entry on this webpage) and what the AI systems will do them in an attempt to summarize your ideas. According to the “hallucination-leaderboard” we are confronted with a 1.3%-4% hallucination rate of the top 25 LLMs as AI-systems. In text based systems the quantity of “errors” is a first indicator only. The seriousness of the omission, addition of wrong information or an erroneous judgment will be left to the reader or analyst to uncover.
There is now a lot to do to test various AI-systems on their “trustworthiness” in summarizing my own work. My very own daily hallucinations have become a large data base as a test case for the capacity of LLMs to make sense of them.
Based on the series of passed blog entries I shall test the capacity of AI to predict the n+1 blog entry. It would be great to know today what I am going to write about tomorrow etc. Thanks to AI I shall have (finally) a sort of intellectual life after death (not sure whether I should want this). Enough of hallucinations and on hallucinations for now, back to serious readings or fictionalized science. (Image: extract from Delphine Diallo, Kush, 2024 at Hangar Gallery Brussels). 
Corridorisation Connectivity
In some cities, “I love Paris” (Jazz Song), we admire the “breath-taking” large corridors, right in the centre of the city. This has been the outcome of the urban planning in the 18th century. Haussmann designed large parts of Paris with huge corridors despite the medieval narrow streets in some of the arrondisements”. Ease of traffic, fewer riots and representative housing became the new mantra of urban planning and superb boulevards.
In the 21st century it is about time to question the notion and social process of corridorisation. This has been accomplished in a paper by Fatima Tassadq et al. (2025). Modern infrastructure like fibre-optic cables, energy or water networks are easiest to deploy in urban spaces with large corridors than the complex narrow inner cities with supposition of different kinds of network layers. The grand ideas of the 18th century should be questioned from time to time and some districts that have escaped the corridorisation might well have a particular charm about them, maybe just because they seem to escape the rational approach of making and structuring space by means of large corridors. Large corridors separate city districts and they are a major driving force of gentrification.
The rationality of corridors has some roots in maths or physics of complexity. A recent paper by Shanshan Wang et al. (2024) reports the surprising finding that the transport corridors in several cities across the globe allow for a 1.3 times the distance of transport networks compared to the so-called direct linear “bird’s flight line”. Hence, corridorisation is (has been) a rather pervasively applied model of urban planning.
Alternative approaches advocate in favor of the 15-minutes walking distance city. All amenities like shops, schools, maybe work and services should be reachable within a 15 minutes walk. This does include “walking corridors” that facilitate (social) connectivity in inner cities. Cyclists also claim their corridors or fast lanes across cities, which underlines the pertinence to take corridorisation seriously and apply the concept with care.
In any case, social connectivity is key. The big social media platforms operate similar to the traffic infrastructure in the 21st century and provide huge corridors to knowledge and people. We only realize this once a service (for example tiktok) or the internet altogether gets disconnected. We have moved from (social) categorisation to (social) corridorisation as technology and rationalisation have taken the upper hand to structure our (social) lives. 
Wellness Sickness
There appears to be some kind of a relationship between the 2 conepts of wellness and sickness. Some would argue that the more sick you are, the more you seek wellness. Sickness seems to be the precursor of wellness for many people. Wellbeing or happiness are even higher order concepts which are only indirectly related to wellness. In an almost 600 pages science and fiction novel, Nathan Hill (Link) constructs his plot based on the psychological research on the placebo effect. With a sufficient aura around a pseudo-medication administered in a wellness clinic, the clients or some figure near the 50% random positive effects are treated with at least no negative side effects. On page 152 we find the more explicit description of how to induce a placebo effect in participants. Context, expectations, faith, symbols, metaphors and story are all ingredients for a placebo effect to work. Sometmes without knowing we receive a treatment in our childhood or throughout the life course that we work on using placebo effects to overcome them. The novel by Hill (2024) is a well researched psychological as well as sociological fiction including a bibliography, which reminds us „If you cling too hard to what you want to see, you miss what’s really there.“ (p. 496). 
Degré zéro
As all of us use GPS systems to navigate across the world or just in your city, “degré zéro” might nowadays be associated first of all with the prime meridian 0° longitude, which runs through Greenwich near London and around the globe.
In « Le degré zéro de l’écriture », Roland Barthes (1953) challenges the bourgeois kind of writing of literature. He introduced the pertinent distinction of the verticality of writing styles in the sense of social classes as well as the horizontal form of spoken language He further distinguished écriture as a person’s style which is embedded into the historical and social context of her/his time. As a radical change, Barthes proposed to use scriptor instead of writer as the latter expression is too much loaded with the historical package of the person. Barthes inserts the scriptor as écrivain into her/his time and insists on the intellectual and social context of writing or the author.
As the scriptor (p. 26) does not escape to become a writer « écrivain «, the degree zero de l’écriture postulates a homogeneous society, which obviously is an ill-conceived vision of reality. Language and texts, therefore, are not universal in kind, but bound to situations, which are defined in historical time and space (p. 67). Semiotics was a major field of his analyses of literature and language.
Whereas in a talk you might focus on the person you are talking to, in a written text the other person is « the many » readers, wherever they are and maybe at a much later time as well. There is a qualitative difference and yet modern “voice to text” transcription makes all spoken words immediately available as written document or “compte rendu”. (Source: Roland Barthes: De la parole à l’écriture. in Le grain de la voix, Entretien 1962-1980. p. 12).
Let’s watch our language as we follow the longitude or latitude around the globe and even small deviations from degree zero matter a lot. 
Spectacularization
Guy Debord (1967) has outlined in “In the society of spectacle” the importance to analyze societies from the perspective of “le temps spectaculaire”. Today we might frame this as “eventism” or the running of society through events. The regular spectacle of religious festivities, new year’s celebrations, Olympic games or even elections and election campaigns have been transformed into ceremonies of enthronization, where the reach to ever larger crowds is the prime goal. The critique of mass media of the 1960s can be deployed to the criticism of the facebook, Instagram and tiktok media campaigns of today. If you are not present on these platforms, you do not seem to exist in the view of the many. Debord highlights under his concept of separation the increasing isolation of persons and thereby a domination of people through technology (Debord para 24,27). Put in today’s terminology form of psycholinguistics we speak of loneliness of the old and young who, through the use of social media technologies, are prosumers even or especially in their free time. They serve the accumulation of massive benefits to the platforms of the spectacle more than their own fulfilment or socializing experiences. The consequence is the isolation of persons, with the paradox to be potentially the winner in the lottery of the algorithms to suddenly reach millions of people. The ephemeral popularity is a curse more than a blessing for most persons. The result is the “singularization” of crowds and within society.
Spectacularization is a process that is accompanied by singularization. Both terms have the merit to stress the process of evolution of societies. Comparing societies turns into an empirical exercise to measure amounts of spectacular events, degrees of spectacularization of individuals and the singularization of individuals within society. The antidote of solidarity and sharing is on the rise as well, which is reason to believe that not all is lost.
(Image: Debord’s annotation on extract of image by Gozzoli, BNF Manuscrit, Paris) 
Masculinity Photos
After the turn of the millennium we keep questioning us about basic principles of humanity, previously called mankind as well. The Zeitenwende has occurred through Putin and other male warriors and warmongers 2 years ago. This is reason enough to keep asking us what is behind the male visions of life and living together. Any hints from social sciences, biology and media studies are helpful to broaden and deepen our understanding of what constitutes masculinity and how it evolves over the life course and within or between societies. The collection of photographs from Jérôme Prochiantz currently exposed at the BNF enlightened the issue. Ever since Max Frisch wrote „Homo faber“ we are aware of the technological transmission process a man might be subjected to. Capturing single moments or arrangements with a lot of care for details shows maybe otherwise hidden male predilections and leaning towards abstraction. An idea or undefined vision, maybe an illusion are depicted in this revelation of masculinity at the turn of the century. Creative and destructive forces are jointly presented in this continuous questioning of masculinity. (Image: BNF, exhibition 2024-11 Jérôme Prochiantz)
Happy Employee
The research on happiness, subjective well-being or overall satisfaction with your life is also an empirical question. Analyses of being happy donot only focus of overall happiness, but look much more into the details of happiness. Beyond the tricky longitudinal observations of happiness it is common scientific practice to deal with subdomains of happiness like satisfaction of employees with their job, satisfaction with one’s job beyond the honeymoon and hangover effect, best known from family studies.
Each of those subdomains has a significant effect on overall happiness. The novel “Happy Life” by David Foenkinos is an interesting example which focuses mainly on the subdomains of job satisfaction, satisfaction with private and romantic partners as the major domains of a happy life. As developed in the novel, people make job changes to re-orientate professional careers or reset their private life. A low point on the happiness scale in one domain might be compensated by higher levels in another domain. These impact from one domaine to another might have substantial time lags involved as well. More drastic resets (à la Foenkinos) can be avoided through focus on other subdomains of overall happiness as well.
How happy are you with your housing situation, neighborhood, your pet, your physical health? There a multiple +/-spill-over effects to overall happiness. Reading a novel might be one as well, just take time reserved to yourself.(Image BnF expo “women in sport”, 20024)
Painter Sociologist
In going to a gallery and exhibition of paintings from the 17th century (Gemäldegalerie Berlin) you do not really expect to attend a class of sociology. However, this is exactly what the Flemish painter Frans Hals does with his paintings of various genres of society of his time. His sociological categories are for example unmarried young persons, married couples or pensioners living in a shared home. Other social categories of interest to him are a caregiver or, more common for the time, persons from noble or wealthy families. His painting „The Regents of the old men’s Almshouse” (ca 1660), the male pensioners home is one of his last paintings when he himself was already about 80 years old. Similar to a College of students the elderly home was run by a house father and house mother who took care of the daily living. The paintings of Frans Hals covered the entire life course with a cross-section perspective of society at his time. From few of his supporters he painted even several images moving towards a kind of longitudinal perspective on a person’s life course. Certainly, with “Oude-mannenhuis” (image below) he was interested not only in individual life courses, but of the conditions, forms or images of aging at his time. He probably was one of the first to challenge the negative stereotypes of aging.
Commemoration Paris
The cemetery “Père Lachaise” is a spacious area of commemoration in the 20th arrondissement in Paris. Many famous people have been buried there or moved to this cemetery eventually. Edith Piaf, Gustave Caillebotte or Frédéric Chopin are known across borders. You find also a small monument for the controversial founder of homeopathy 200 years ago “Hahnemann” there. He spent his last 8 years in Paris before he died at the age of 88 in 1843. From a social science perspective it is interesting to note that commemoration is much more decided by the descendants like in the case of Hahnemann or the popularity of the person, like for Piaf, than the person her/himself. The tradition of joint graves for families holds for the Paris born painter and collector Gustave Caillebotte despite his movements to other places. The freshly cut flowers on the grave of Piaf show that the performances of the artist have made deep and lasting impressions.
