Tag: science

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Marc Aurel Book 7

In paragraph 63 Marc Aurel refers to Plato as one of his sources: “No soul”, says Plato, “likes to be robbed of truth” ( and continues himself) “– and the same holds of justice, moderation, kindness, and all such virtues. Essential that you should keep this constantly in your mind: this will make you more gentle to all.” The remarkable reasoning is to transform the own generalized experience into a behavioural recommendation. It may be argued that Marc Aurel starts from a kind of Aristotelian empirical study of persons in different life domains to derive an empirical fact. Based on this he develops a more Plato inspired “idealistic picture of mankind”. He is very much preoccupied with the philosophical question, how is a good life for all possible. In a previous paragraph (55) he outlined his 3 guiding fundamentals: (1) “The main principles in a man’s constitution is the social; (2)… resistance to the promptings of the flesh, like impulses; (3) judgement unhurried and undeceived”.
With such a claim for a “rational constitution” of man, he puts himself into the footsteps of previous philosophers of the ancient Greek tradition and, therefore, his writing in Greek rather than Latin is also a homage to this philosophical heritage.
(Image: parts of Installation by Fujiko Nakaya in Neue Nationalgalerie Berlin 2025)

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Marc Aurel Book 2-5

There are several translations of Marc Aurel. In the Shakespeare English translation from the Greek original of the Meditations a passage (Book 5 paragraph XXIII) describes or idealises humans as a “reasonable and sociable creature, regulated and directed.” The same short quote of this paragraph in the English translation by Martin Hammond (Penguin Classics p.43) reads: “…my wish is to follow the nature of a rational and social being.” Of course, both translations are pretty similar at first glance, but the difference of “reasonable” versus “rational” and “sociable” versus social” mark very important differences that had and have different impacts throughout the following centuries up to today. As in many other instances going back to the original version in Greek (book link) might clarify the issue, however, the entry barrier is access to the bilingual version and use of an ancient Greek dictionary.
With almost 2000 years of advances in rational approaches and its tools like mathematics, the scope of the rational is huge and the behavioural turn in the social sciences demonstrates the limitations of human’s use of rationality (λογικός) in decision-making. Reasonable seems to come closer in today’s “post-enlightenment” world.
There is also quite a divergent connotation in the simply “sociable” (κοινωνικός) being or the “social” being, which has a wider scope attached to it. Hence, lets be aware of the implicit interpretations of translations. For a start the parallel reading of translation and original (Link) might enhance our understanding and spur even new translations and interpretations, which speak with the classic originals to today’s audiences (with or without AI).
A witty joinder of both previous translations is “And my will is the will of a reasonable and social being”. (Link Book V, paragraph 29 bottom).
From the Greek to French in book V (Link)  with an even broader understanding of the social as “la société universelle”.

(Image: Camille Claudel 1905: “Persée et la Gorgone, Lucile Audouy collection Paris, exhibited in Berlin 2025, Alte Nationalgalerie)

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AI Podcasting Me

Content producers have lots of tools at their disposal to get their content across to very different audiences. For some time the traditional media of newspapers, radio and TV were the prime outlets for content distribution. Social media have changed this to many more senders of content than before.
In the 21st century, AI allows to automate media productions. In a trial run I just used Google’s NetbookLM to generate 3 podcasts based on my own writings on AI over more than a year by now. The result is available and using artificial voices it is possible to broadcast yourself without revealing your own personal voice. I am not done with the evaluation of the outcome(s) yet, but the first impression is an interesting other form to spread content.
More tests are necessary to check for hallucinations as well.
Here are the links to my virtual podcasts:
AI, intimacy and insecurity

AI, Society and the Human Spirit

AI and the Human Mosaic: Navigating Our Interconnected Future

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Mind Map Me

AI tools are great to assist learners in the task to get more structure into larger documents or books. It is up to the teachers or lecturers to use the tools themselves to pre-structure content they want other persons to learn. Mind maps are useful to summarise larger content and offer a tree-like structure to a text moving from the general to more specific content and then into details by at the same time not loosing sight of the overall structure of the content. Basics can be provided by Google’s NotebookLM and you may rework this basic structure yourself linking the mind map to the detailed content. Learning may start with a comprehensive mind map at the beginning to move on to details. Alternative versions of a mind map are equally feasible to come up with new combinations of subjects. This can be done using the tags of the blog entries in addition to the categories and fast search keywords.
It is a fascinating way to mind map yourself based on longer texts written by yourself. This clarifies a bit what potential readers or learners are likely to retain from reading your document(s) or blog entries.
Its worth trying, as others will most likely use these tools from now onwards anyway, whether we like it or not.
Image: Google NotebookLM Mind Map of my AI blog entries 2025-9-9.

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Own AI related entries

The digital drafting of blog posts facilitates the publishing of volumes based on a selection of entries. Pdf-files, or EPUB formats are quite common. The choice of a flipbook is more suitable for larger screens of tablets or notebooks. It also serves as a rapid stock taking of entries and missing topics to cover a broader field. In some fields AI is not yet popular, for example in agentic home applications, whereas in other fields text, translation or image production AI has grown into a threat to professional fields. Even computer languages are a major field of application with substantial negative employment effects.
Hence, enjoy the latest comments on AI towards the end of my latest Flipbook.
Just click here.

ChatGPT provides a summary of my AI-reader as follows:

From the uploaded text AI from a Social Science Perspective (Dr. Klaus Schoemann), social science concerns with AI focus on potentials and limitations of how AI interacts with society:

  • Labour and employment: AI impacts jobs, but adjustment processes are slow. For example, there’s a shortage of engineers and care workers, while robots are still limited to simple assistant tasks. This raises concerns about who benefits and who is left behind.
  • Bias and fairness: The book highlights issues of biased results in research and decision-making. When AI systems rely on incomplete or selective samples, results can be misleading — a challenge also familiar to social scientists.
  • Democracy and accountability: Journalists and scientists are framed as part of a “checks and balances” system. AI adds complexity here, as the fast spread of information without accountability can weaken democratic processes.
  • Human–machine relations: Topics like intimacy, housing, and memory are re-thought in the context of AI and digitalization, raising questions about privacy, social norms, and cultural heritage.
  • War and security: AI-driven technologies like drones change the nature of warfare, raising ethical and political questions.

On his blog, Schoemann also stresses the energy and resource costs of large AI models and how reinforcement learning offers a more efficient alternative. He warns that AI should be understood not just technically, but as part of an “all-electric society” where social sciences help assess risks, inequalities, and long-term consequences.

👉 In short: AI raises social science concerns about equity, bias, democracy, labour, cultural shifts, and global risks.

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Vacation Waves

One of the most popular choices for a vacation is in connection with waves. There seems to be something mystical or romantic related to waves, which touches many people irrespective of their background and across continents. This goes much beyond what we know about waves from physics or maths and this is already a fascinating scientific story in itself. Sailing adepts will be able to tell marvellous tales about waves, too. Coming back from a vacation near the sea or a lake, you surely may add another story to the already rich inventory of waves in art or literature. The imagery about waves started early as well, ever since sailors started to conquer the world.

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Paris Sorbonne

The history of the university on the left bank of “La Seine” dates back to 1257 when Robert de Sorbon an advisor to Louis IX was asked to create a unifying structure of several colleges which provided room and board already. The location on the left bank in Paris allowed these colleges to escape the religious doctrines and archbishop who dominated the right bank. The choice of the name of the advisor rather than the King was already showing early signs of independence which was cherished by generations of students and professors. The Colleges had individual names like “Collège des Bernardins” or “Collège de Navarre” and operated under the title of “La Sobonne”. The “Musée Histoire de Paris Carnavalet” shows an early design of the Collège de Navarre. Independent thinkers and writers were formed there who became very influential later on in their careers. Thomas d’Aquin was one of them.

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Scienceploitation

Science can be exploited to make unjustified profits from referring incorrectly to it. Social sciences, like economics may be used by banks to sell you products that refer to science only as part of their arguments if the science based inference fits their purpose. Scienceploitation is very common in the field of para-medicine and para-pharmaceutical products. Health promises sell. The time until an ineffective treatment reveals the unrealistic promise to be unachievable considerable profits have accumulated on the side of the selling company. Science has a hard time to counter the perils of scienceploitation. Advanced knowledge can be used and abused as any other method of convincing people to buy or subscribe to a product. The responsibility of the scientific community consists also in finding ever new ways to counter scienceploitation. AI will pose additional challenges as well as opportunities.  

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Bench the benchmarks

In the social sciences as well as in engineering it is common practice to use benchmarks as indicators of performance. Thereby, several countries or regions within a country are compared with respect to quantitative indicator. Let’s take employment ratios. A higher employment ratio, which includes many persons working few hours in part-time work, is different from a slightly lower employment ratio, but hardly any part-time employees.
The same rationale holds true for benchmarks of AI systems or the newer versions of agentic AI that are under construction in many fields. The paper by Yuxuan Zhu et al. (2025) proposes the ABC (agentic behavior checklist) for agentic AI developers. The reporting of benchmarks by such models should include (1) transparency and validity, (2) Mitigation efforts of limitations and (3) result interpretation using statistical significance measures and interpretation guidelines.
The aim of this research is to establish a good practice in establishing benchmarks in the field of agentic AI. The sets of criteria to test for is large and the focus of how the agentic AI treats, for example, statistical outliers much above or below the average i.e. (> 2 standard deviations from the average) assuming a normal distribution, is one case of application only.
We welcome the efforts to bench the benchmarks in the field of AI as is common practice in other sciences as well.

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Pervasive waste

From time to time waste from so-called highly developed countries is making headlines and then it is forgotten again. Huge amounts of plastic waste gets shipped for example from the USA to Malaysia in containers regularly (NYT 2025-7-1). The dumping of waste in other countries where it is cheaper to waste the waste is a cynical practice. Not only is the potential for reuse and a circular economy disregard, the little control that is exercised how the waste is treated afterwards is neglected. Some might just end up in our oceans later on or find its way in our food chains. The recent discovery of lots of nuclear waste at 5000 m depth in the sea in another extreme example of this practice to dump waste affecting all of is when profits have been accumulated inn the hands of a few enterprises and states. Such external effects as they are called in economic theory are part of the standard economic thinking. The challenge is to detect such behavior, persecute or better prevent it. This calls on countries who produce the waste to check for the contamination potential and treat their own waste. Fukushima has lots of barrels of nuclear waste waiting. The pervasive nature of this waste will make it last for thousands of years. “Beggar thy neighbor” with your waste is a major default of our current economic and social model. It remains an unresolved puzzle why mankind continues to work towards its own extinction. (Image: Le grisou, Constantin Meunier, MRBAB, Brussels). 

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Contextual Vision

The attempt to define a sociology of vision has had a hard time to build on hard evidence that vision may depend on context or in a broader sense your visual heritage. A standard definition of context in vision highlights the areas around a focal point. The findings by Krupin et al. (2025) show through the comparison of persons from very different populations that our vision depends on our cultural background. It is the social background and upbringing in a specific cultural setting, which determines what we see in an image at first sight.  The so-called Coffer illusion test (Deregowski 2017) reveals what we see in an image spontaneously and maybe after some longer staring at the image or doing it repeatedly, we learn to see that there is more to see than our original impression. Depending on our cultural heritage we might focus unconsciously on rectangular or round shapes in a geometric image. This fundamental finding questions the view that there is only one universal kind of vision common to all humans. In fact, there is variance around what we see and thereby how we perceive an image. This research provides a justification to delve also into the field of a sociology of the visual. Because of the common term in informatics “WYSIWYG”, (what you see is what you get), we might  spend more efforts on research of how human vision is shaped over generations or according to social background. We know that in some images different people see different things. What appears as a splendid opportunity for some, is a very risky situation for others. Eyes are so closely wired to our brain that inscriptions of vision on the brain functioning are quite likely. The plasticity of this process over the life course remains a crucial topic to understand the process(es) of how a person’s social background shapes her/his vision.

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Global warming

The annual update of the global warming indicators (source: Earth system science data 2025-6) gives more reasons to worry about the future of our climate. The objective to limit global warming to +1.5°C, established at the Paris climate agreement in 2015, is no longer achievable. This is the hard evidence based on the global network of scientific data collections and their projections. Fossil fuels are a major cause, deforestation and greenhouse gas emissions as well (Forster et al. 2025). As a consequence, human-induced warming of average surface temperatures and flows of heat into oceans continue. The first consequences, we witness in many parts of the world already. France is particularly affected (Le Monde 2025-6-20, p.7). What used to be called “natural disasters” is better described as long-term consequences of human-induced global changes like global warming. About time to take our CO2 footprint even more seriously. The “All electric society” can reduce reliance on fossil fuels considerably, as of now.

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Fertility Fecundity

The scientific debate around changes in fertility has focused on social, economic and cultural factors to explain the drop in total fertility rates in OECD countries. The baby boom years of the 1950s and early 1960s had come to an end following the spread of new forms of birth control like contraception from the late 1960s onwards. The trend is very obvious and yet, the explanations of the trend might lack a more profound analysis of fecundity in addition to the socio-economic explanations. Shakkebaek et al. (2025) point for example to the little known effects of environmental (pollution) factors on the biological reproduction capability of humans (men and women).
Additionally, psycho-social factors like “the German Angst” fear about future developments in many social and economic fields might have direct effects, but also indirect effects on human biology. We know still very little about such feedback loops or feedback effects. We are more convinced, than we actually have hard evidence, that the BSP, SPB or PSB (B=Bio, S=Social, P=Psycho) spheres are interwoven, but an ambitious research agenda is called for to enlighten the issue. The big invisible elephant in the room might be environmental issues that enter into the fertility equations more than we have expected for many years. A nice working hypothesis for an ambitious and overdue research agenda.

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Technology maturation

Technology has its own time of maturation. The time for wind power generation was quite lengthy compared to some innovation cycles in information technologies. Maybe, due to the fact that large wind turbines had only big enterprises or public monopolies as potential clients who were already heavily invested in even bigger nuclear energy projects caused the slow pace of development of this technology. In Germany just like in Denmark, Sweden and the USA the first larger research projects took off in the mid or late 1970s. The technology is explained by Erich Hau in a comprehensive way including the early days like the « Growian » test wind turbine in Germany (extract of image below). Despite the fact that major engineering difficulties were overcome already in the early 80s, the economic and legal challenges took much longer to resolve. Nowadays, we have an additional case of energy sovereignty to add to the cost-effectiveness of power generation from winds offshore and onshore. In the coming years we are likely to see more and more decentral power generation from wind on roof tops or small poles to complement solar energy during cloudy but windy weather or at night. Just like the sunshine we shall praise the windy days for their power generation potential.

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Deus DEI

In Latin the declination of deus = god starts with the genitive form “dei”. In the world of universities and labor markets the abbreviation “DEI” stands for diversity, equity and inclusion. These 3 topics have ensured for years that a university campus looks a bit more like society at large, even if biased towards younger generations. The MAGA saga of the USA in 2025 starts to turn the clock back on hard to accomplish advances in DEI-hiring and promotion. This likely to reduce the number of international students on US campuses and will make campuses look WEIRD again. Moreover, lots of talented students will seek DEI campuses in other countries to avoid discriminatory hiring practices and arbitrary risk of visa denial.  Europe is likely to benefit from this kind of brain drain and skill shortages might be substantially reduced due to such unprecedented shifts in US policies. The cuts of billions of grants to renowned universities for political reasons will leave a yawning gap of talent in the US in a few years time, the latest. Early movers will move very quickly to anticipate the exodus of talent.  It is puzzling to watch how quickly years of DEI policies might be undone with thousands of people and projects at a loss. Scholars of American history are reminded of the McCarthy era of political prosecution or the dismal period for science under the Nazi-rule in Germany. Americans seem to get much worse and extreme policies than they thought they voted for. “Deus Dei” also means “god of god” and in the current American political context the judgement of a god by another god has maybe a historical meaning. In the table of the Estonian town hall in Tallinn the inscription alerts rulers to beware of being judged as well. Sounds like a timely reminder to overly ambitious politicians.

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Journalists Scientists

In the theories of democracy journalism has entered the stage mainly in form of a controlling mechanism that is part of an extended checks and balances system of democracy. Independent journalists serve as effective multipliers and critical commentators which are an essential element of a well functioning democratic society. Social media’s ability to reach large audiences without adherence to independent journalists’ principles pose challenges to the way journalists are perceived by the public. The border between journalism and influencer marketing of products and opinions is continuously under pressure. Voices not heard,  underrepresented or those with few resources for large scale communication face difficulties to communicate their views in a market flooded with information and marketing. 

Another challenge to journalists is the fast evolution of scientific research and knowledge which at times derives from complicated theoretical and/or empirical methods. Hence, the relationship between journalistic reporting and scientific rigor and need for details in reporting are hard to reconcile. This necessitates a continuous dialogue between scientists and journalists to be aware of potentials and limitations to the co-evolution of the two disciplines. In order to avoid a self-referential subset in each discipline, the demonstration of successful cooperation between the two disciplines reveals the complementary role in many real-world instances. Investigative journalists often rely on additional scientific expertise and scientists who uncover manipulations of any sort in their work have to cooperate to inform society about the topics. As with global warming or PFAS risks scientists get drawn more and more into the checks and balances role within democracies. Therefore in addition to the separation of powers claimed in the political literature of the enlightenment (executive, parliamentary and judicial) we added already the 4th one of journalism and should include (5th) independent scientific research and reporting into the essential principles of well functioning democracies. The conference at the BNF in Paris on the 28th of March has raised these timely questions in the best tradition of the ongoing process of enlightenment.

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Augmented Cognition

With everybody talking about artificial intelligence we tend to overlook recent advances in augmented cognition. Just 2 examples of studies presenting new findings published in 2025 suffice to make that point. Automated versus manual driving have different effects on our brains. Automation makes us sleepy and inattentive with potentially dangerous consequences. Using EEG measures of neuromarkers the drop in attention shows up earlier than through measures of keeping one’s lane while driving. For jobs or duties that involve extended hours of attention the wearing of a mobile EEG-device could avoid lots of accidents. Drugs, alcohol or medication abuse would also show up before it is too late, I suppose (Scanion et al. 2025).
The 2nd study involved a robotic assistance to piano playing which achieved surprising training effects for learners of the music instrument. Objective measurement of speed and finger coordination might even allow overall accuracy to improve significantly. The technology around us and the one in direct contact with us, our behavior and performances shall have an impact on all of us sooner or later. We have to pose the question of how far we want to go along with these evolutions. Augmented cognition will not only be of interest for civil purposes, but military applications or dual use is evidently another option.

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Aufklärung Enlightenment

The period of the enlightenment is a historically defined time period of the late 17th and the whole 18th century. Although often associated only with Europe as its origin, the American contributions and influences have been far-reaching as well, just thinking of the “Declaration of Independence“. This historical period is, however, most interesting through the unrivalled contribution and pivotal point to the history of ideas. The exhibition and catalogue on the “Aufklärung – Enlightenment” by the German Historical Museum in Berlin exposes many of the historical editions of books that “made the enlightenment”. Philosophical writings and readings (Immanuel Kant: Kritik der …) of the period (especially in German) are tough even for native speakers of German, unlike reading of French (e.g. Jean-Jacques Rousseau) or English (e.g. John Locke) contributions to the enlightenment. Maybe this is already one of the reasons why in France the revolutionary ideas were put into practice through population-wide political movements.
The historical period of the enlightenment came to a close in the early 19th century (1806 another pivotal year). The English or French terms of enlightenment or lumière maybe be interpreted in a way that other historical periods like the medieval ages were periods of darkness, even later periods again did not live up to the idealist prerogatives of the evolution of humanity. The German term “Aufkärung” has its etymological roots more in the action associated with “to enlighten”. This hints at the continuing process of the ideas of the enlightenment in modern terms the process of individualisation, tolerance and autonomy.
There many valuable short interviews shown in the exhibition and Jürgen Habermas contributed a short closing statement to the catalogue of the exhibition on the unfinished project of the “Aufklärung” inviting us to continue also with the “Kritik der Aufklärung”. After all the enlightenment did not save us from repeated events like “Apokalyses“.
(Image: Émilie du Châtelet, below book on Newton Physics in DHM Enlightenment exhibition 2025).

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Beyond ART

Is there anything beyond art? Well, maybe there is. ART in German language is an abbreviation of “Allgemeine RelativitätsTheorie”. In other words the General theory of relativity developed by Albert Einstein is in its shortest form a one line mathematical expression, but with lots of equations included in the general statement, which grew out of his much earlier special theory of relativity. The textbook by Michael Ruhrländer provides a step by step approach to get to grips with the mathematics involved to reach a better understanding of what “ART” is about. Take your time to digest it and brush up a lot of maths beyond your A-level maths.
The abbreviation ART suggests a lint to art in popular understanding. Indeed, it needs able artists to show insights of ART to more people than the restricted scientific circles. An understanding of a 4-dimensional system of time-space has some more accessible features than waves of gravitation and the many puzzles that can be solved through ART.
Decades later quantification has build upon ART and takes us further into fabulous world of mathematical and physical imagination as well as real world applications.

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Suicide Prevention

The annual mortality statistics and special reports on suicidal tendencies are a tough reading. OECD Statistics give a at least an approximate, comparative perspective. Reporting routines and medical confirmation of a suicide or suicidal behavior still vary quite a bit between countries. Nevertheless, the usually reported incidents per 100.000 persons remain rather abstract.
Absolute numbers speak a clear language. For example in Germany there were about 10.300 recorded suicides in 2023, France had to mourn about 9200 in 2022. To put the size of the problem in perspective it is helpful to know that in Germany all other not aging related causes of death like traffic accidents, drugs or murder make up for around 7.000 deaths per year. The targeting of resources and prevention efforts on these vulnerable people seems inevitable. However, we see only limited additional efforts to curb the problem.
A more detailed analysis of the frequencies reveals the gender and age differences. More men commit suicides and older (very old) people have higher risks. The oldest age group of men is most at risk.
Since the Covid-19 pandemic young women show rising trends in many countries again of suicidal attempts and self-inflicted wounds. Despite a continuing effort of research (Links) there is no single cause to explain the occurrences.
As a working hypothesis, which awaits empirical tests, I would look into societal factors that stigmatize persons who are made to believe or feel like they are beyond the normal spectrum of society. The lack of acceptance of diversity concerning gender, age, ethnicity, body shapes or mental states like anxiety. Poverty might cause immense distress and suffering. Large shifts in wealth in both directions cause additional risks.
It seems as if our minds and society are constantly in a kind of „regression towards the mean“ posing challenges to those furthest away from the average or perceived norms. Percentile ranks or percentile scores are commonly used to express a person’s position in a frequency distribution. For example you are better/lower than 90% of persons of your age group. Such statements might cause further distress for persons. However, summarising across several (psychological) measurements, they may yield encouraging indications as well. Actual and perceived positions in such percentile ranks add another “social risk” as perceived positions may govern behavior.

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Wave and Particle

The history of ideas in physics has been evolving or revolving a lot around the wave-particle-duality. Even if the basic debate by now is about a century old, we still need to come to grips with this challenging notion that light is not just a beam and nice colors through a prism yielding a spectrum of frequencies, but it can emit material matter called photons that have a non-zero value(s) of energy.
Max Planck came up with the formula E = h × f, where h is the Planck constant, E the energy and f the frequency of the photon. The synthesis of Einstein’s light quanta and De Broglie’s matter waves became the foundation of quantum mechanics.
The exciting evolution of physical ideas results in the state of the “art” view that, for example, light can take both forms, wave and particle, at the same time. Quantum mechanics has become a thriving field in physics and is currently transforming the world of computing in the 21st century. The amounts of funds invested in the race of applications of quantum computing across the globe are “astronomic” and have become part of dual-use spending of research funding. Encryption of information or access codes are of growing importance for civil (banking, mobility, health info) or military purposes. The speed of quantum processors will allow cracking of codes much faster and therefore new dangers are looming in many fields. It is a rather competitive field, which has evolved a lot from the original wave and/or particle vision of the world (of physics).
For social scientists there are several examples of applications of the concepts of quantum mechanics to social and behavioral sciences (Link 1, Link 2). Hard to predict, whether the wave and/or particle view will dominate the social applications of elements of the history of ideas in physics. New concepts in science challenge our traditional science-based thinking about time, space and space-time with implications even for our understanding of causality and covariance.
(Image of Dice icoshahedron (animated 3D image) from Egypt, dated to 2nd century before our time, BNF, Paris)

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Negative time

In 2025 an experimental setting has come up with a demonstration of negative time. This is a mind-blowing mental exercise to imagine the science fiction like framework to allow time to be negative as well.
This invites several epistemological questions as well. Can we imagine or live with a reversible concept of time? Maybe music has given us clues. In composition of music, we can easily play the notes of a basic theme just in reverse or mirrored order. Modern rhythms like in beat music as accompaniment by a drum use for example a rhythm like (use your hands or drum sticks!)
“left left right left /
right right left right”, (redo faster if you internalized the rhythm).
A reversal of the beat (its inversion) like replays of rhythms in reverse order seem to return the energy. This beat pattern is perceived as forward moving and is advancing in chronological time. It has fascinated a whole generation and spurred crazy movements to accompany the rhythm.
A simple tune might be played in reverse order as well. Just take a piano scale and play 1 2 3 1 fingers, and then 1 3 2 1 in a mirrored fashion (1231 1321). Even 1 2 3 1 as 3 2 1 3 gives an impression of inversion.  Through this composition technique you get a bit of a feeling for the potential of a reversal of time or what negative time might feel like.
The innovation through quantification challenges our concepts of time more and more. The direction of time is subject of a fundamental revision. Theoretical concepts have predicted this for a long time.
(Image: Muséum national d’Histoire naturelle, Paris)

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Quantification

The most obvious association with quantification is the attempt to quantify in the sense of measurement of situations, locations or social phenomena. This has taken considerable steps with the availability of smartphones that measure and thereby quantify all sorts of wanted and unwanted information about us. The distances walked are among the easiest to quantify. There have been many accounts and discussions about this kind of quantification. The results have been a further push towards self-optimization assisted by a quantification of almost all aspects of life. That is daily business of social sciences.
Quantification has another well-defined meaning to it, which is in physics. The revolution of the early 20th century has been to deviate from classical physics which assumed continuous processes in time and continuous measurements to the new world of quantum physics, another kind of quantification. This allusion is due to the Alain Aspect’s inspiring book “Si Einstein avait su” (2025) and his efforts to make quantum physics understood to a broader public. For me one of the merits of the book is the reminder that experimental physics can contribute and resolve many epistemological questions.
(Image: my popularized approximation of Schrödinger’s cat in Berlin Zoo)

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Time Concepts

Tell me about your concept of time. How do you define time? Answers to this question are likely to depend on your upbringing, affinity to a specific scientific discipline or epistemological belief(s). Aristotle defines time to be subordinate to the more basic principle of change. To understand change we need the concept of time. Two points in time define time, intermediate points are possible, which might be interpreted as a precursor of infinitesimally short spells of time. To explain change, Aristotle refers to his concept of time. Other concepts of time build on the notion of succession of events or sequences of events.
Clocks going round in circles have been used to show the progression of time independent of events. Beams of atoms later allowed for more precision of time keeping. The prevalent concept of time still is dominated by the idea of time as an arrow, usually depicted in some diagram resemblance based on the Cartesian coordinate system, but usually starting at 0 or a particular point in time as diagrams in economics.
Following on from the old concept of change and time, we still claim for causality in most day-to-day experiences or for social processes the link to a chronological progression of time. In statistical analyses building on time-stamped occurrences we may use event history analyses or stochastic differential equations to analyze (social) change depending on one or several (earlier) factors. Even the theory of deterministic chaos, which is applied in weather forecasts for example, arises from the sequence of point of measurements.
Mainly since Isaac Newton we cherish the notion of a universal time, which helps us to coordinate different locations on our planet with reference to the Greenwich mean time. Other concepts of time make use of infinity of time and how to deal with this. Life before, or life after death, are human constructs trying to make time understandable or at least manageable for us beyond our own living time. Depictions of time in the arts, paintings or music opens up yet another vast space of thinking about, as well as, experiencing time. We did have and still do have a great time thinking about time.

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Mindmap Me

Tools like artificial intelligence allow all sorts of transformations and depictions. The photo editing tools are widespread and particularly popular among the young users. My own transformative exercises, latest with www.bairbe.me, have yielded interesting insights, well worth an intergenerational playmate. For the guys there is the www.yobrick.com version for brick gamers.
The App “Canvas” allowed me to delve deeper into my own mind by giving instructions of how to create an image of the structure of the blog entries on this webpage. Of course, it is not (yet) a real AI-generated content map, but it is only a matter of time until such tools will exist. After all, this would be just an arranged and rearranged list of contents using the hyperlink structure of the texts as well.
For the time being, I derive my own structure of the blog entries by topics, categories and tags including the hyperlinks or internal referrals. Interlinkages are mostly stated explicitly. However, there are many implicit links, which are obvious to some, but not others. AI-systems could use occurrences of words,  synonyms and antonyms . Colors in addition to bubble sizes and (in)direct lines may complement such mindmaps. This can help to reveal another, additional layer to connections between categories or tags. The Ai-generated image shown below was created with the APP Canvas as a first approximation and AI-augmented test version in form of abstract images).
Next steps on the way to understand human intelligence and, maybe, augment it with a next generation AI-system would use a colored-3D version of such a mindmap and use the chronological evolution of the blog posts in a kind of evolutionary animation. This should allow us to go beyond the usual psychological classification of fluid and crystallized intelligence. We might come to grips what it means to be “in a Paris state of mind” or when hallucinations become overwhelming.

Screenshot
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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).

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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.

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Modular books

Online publishing offers much more flexible forms of publishing. Even traditional book formats can be organized in new ways. Instead of a fixed sequence of chapters, paragraphs or blog entries, the sequence becomes a matter of choice. Either in the author’s hand or in the hands of readers, the cruising through content allows very individual experiences of what still is the same content. Just as learning, which is ultimately an individualized process, the reading or scrolling through content creates singular experiences with the content. Several choices of more in depth reading should keep the reader interesting to dig further along the personal knowledge trajectory according to own prior interests.
The motivation of a person to read depends on the reader’s own interests and current situation or context. The “state of mind” constitutes the willingness to stop at certain pages or entries. The search function, keywords or tags allow to deviate from an author’s intended sequence of chapters. An online textbook has easy entry and exit points. They are not predetermined. The risk, however, is that the reader stops at a point without loose ends, somehow in expectation of a conclusion of a succinct summary. That’s probably the easiest job for any AI system, based on a series of entries.
However, the joy of the journey through knowledge gets lost through the use of AI as a short cut. Just like physical exercise rewards you with additional strength, mental exercise keeps us healthy.
Traditional predefined sequences – like books, e-books or flip-books are also available on this webpage either through the post archive or the continuously growing books, e-books or flip-books page.

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Health Tech

Health technology assessment (HTA) is an interesting scientific field. The new digital opportunities allow people to participate in medical and medication trials in their homes or even in bed. Their health data and the administration of medication is also encouraged and sometimes supported through digital devices. The pharma and health industries have many devices ready to go. The differences to the traditional forms of medical trials, however, is an issue as we want to compare the results from both kinds of trials. Participants of trials, might prefer or struggle with these novel kinds of study designs. In any case the results will be impacted in several forms (Study Link). In the best of all worlds for the researcher the effects will cancel out each other, but is rather unlikely. Some participants will reach more positive effects with the use of digital tools, whereas others are challenged and might even abandon during the trial. Monitoring during the study (for example through digital inhalors) is another advantage of such distributed trials. Rather than taking adherence to a trial medication for granted, digital tools allow a more precise monitoring of subgroups as well. Data and effort invested in the trial is preserved through the easier access to person’s information, assuming continuous readiness to stay on in the trial.
Our own smartphones are still underexploited in terms of health monitoring and use in research designs. The possibilities to link data to other external data sources shall further advance the research potentials in many interesting ways. Data protection and data security become even more important with the ever smarter phones and connected devices.

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Health data

2025 will be a crucial year for health data across the EU. Germany introduced the electronic patient card, which can store basic information to then access data in the health insurance cloud for medical doctors, hospitals and other related health services. Potentially this is a great step ahead as some tests do not have to be repeated if they had been completed recently before already.

In pseudomised form, research may draw samples from such databases to enhance our science based understanding of disease. The evaluation of public health interventions becomes easier and medium and long term efficiency of measures can be assessed in many instances.
The Belgian research using health data has met to discuss the potential and limitations to link health data to other data sources to allow more complete and more complex analyses of health and disease processes. Another extensive data source sits on our smartphone. Collection of steps walked, sleep patterns or heart beats give valuable insights into a person’s own contribution and care about personal health. Although data are frequently incomplete, researchers are used to estimate missing data on the basis of existing or comparable person’s data. The basis for improving health for all are quite promising, data handling and linking them will be a challenge to the competence of all stakeholders and everyone involved in better health. It will be stressful before it becomes a routine.