Dealing with Elon Musk is a must these days (WSJ 2025-2-26 A4).
So it happened that on his way to Mars, Musk met God the almighty on his way back to heaven. Musk asked, whether he could join the ride.
God, not amused, asked Musk about his T5T (top 5 things) he accomplished in his life. Musk questioned God‘s right to ask this question and said he would tell the other T about this. God gave him just another day to come up with a response.
So here we are: the T5T Elon Musk might put forward:
(1) I created a million fancy electric cars.
God: Well, but there were already too many tin boxes on 4 wheels on earth.
(2) I created rockets that propelled billionaires into space and back again.
God: Your carbon footprint has exceeded a million people of the poorest countries on earth.
(3) I created a network of satellites that facilitated communication.
God: Nobody spoke to me yet using it.
(4) I bought Twitter and transformed the platform to spread evangelism of various sorts.
God: This has become a hoax spreading more lies than truth.
(5) I reformed the public sector employees to share my beliefs or leave.
God: This will ruin a lot of services like USAID, which have assisted me for many years in my caring and charitable service.
With all these T5T of yours in mind I am not sure I should let you return to that planet earth. Maybe I‘ll find another assignment for you where you can cause less harm Elon. Maybe, try “Waiting for Godot“.
(Image: instead of T5T try T4T (tea for two)) 
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) 
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)
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)
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. 
Blue Sky
In the period of romanticism the associations with a blue sky were very different from today. Getting out into the sun was a kind of privilege for the “leisure class”, of people who could afford to enjoy time outside for boating, walking or other pleasures. In our technology-driven 21st century the associations with Blue Sky are more like a technically enhanced view through for example “Windows” at the news and opinion platform or “Bluesky”.
Several scientific websites that report data on blue skies and air quality more generally across the world report indicators like ozone values O3, sun intensity, micro particles 2.5µm and 10µm, Nitrogen Dioxid NO2 to name the mostly quoted indicators. Hence, just enjoying the blue sky outside isn’t the same as it was before. People working outside in the sun or at times of a blue sky but with high air pollution levels are incurring severe medium-term health risks. The Ozon layers at very high altitudes protect our skin and eyes against high UV-radiation, but O3 on the ground is tough for eyes and lungs.
Technology has come with many blessings, but the negative effects on a global scale become also more evident. Getting used to a particular lifestyle, which produces lots of emissions of aggressive fine particles will make it more difficult to just simply enjoy a blue sky.
In consideration of all these background data with regional variations, we surely need an AI-system which we can ask for advice, whether we should go outside and enjoy the blue sky with or without respiratory mask.
Romanticism has led us all the way to Californication and dangerous enshittification of the air that surrounds us. Youth and the next generations will have very different associations with Blue Sky than we have the chance to, at least, have had. 
Greening Interiors
The greening of facades of houses is an old tradition in many western countries. The outside of a home then changes colors with seasons. The home for insects and birds feeding on them makes a small contribution to biodiversity as well. Greening interiors is a more rare instance. Of course flowers and plants can contribute a lot, but there is yet more scope to green entire walls inside your home or office.
Moss has advantages to add humidity to the air. You might like the acoustic effect as well in busy environments. Taking care of moss is not easy. Professional assistance (Link) or renting options might be a good option for office buildings. The wellness enhancing effects are also interesting for some people who susceptible to the calming effects of a more natural environment. It is a matter of care and respect for air quality that is reflected in the design using green interiors.
Circularity is another advantage of the materials. We can so a lot for biodiversity if we really wanted to even in urban spaces. Global warming will force us to think more and more, and sooner than later to make use of such innovative solutions. For the time being they remain a luxury option. For the wealthy, greening interiors is easy, it much less an option for restricted budgets and people who are obliged to focus on short-term survival. However, we have to get started with the greening of our planet again, any way. 
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.
Apocalyptic Collection
As long as humanity exists we had to deal with the experience of apocalyptic horrors. First, mankind could not make sense of natural disasters. Second, after we understood many of the disastrous events on earth and even most cosmological events, we proceeded to create our own apocalyptic disasters.
One thousand years of unimaginable suffering and destruction are the subject of a unique exhibition at the BNF entitled Apocalypse. The documents start with biblical representations of it and continues throughout the centuries. The artists‘ attempts to depict and characterize the Shoa is part of the exhibition. The atomic bomb is another issue of the 20th century. In the 21st century artists try to move beyond the different forms of the apocalypse. The collection of various kinds of dealing with apocalypses constitutes itself an apocalyptic experience. We still have to go a long way to come close to understanding what drives disasters and what the role of mankind is on this way to seemingly endless destruction. The apocalyptic experiences remind us to keep asking some fundamental questions. (Image: Exhibition Apocalypse at BNF Paris, Center Piece by Otobong Nkanga, Unearthed) 
United by travel
The economic rationale of profit maximization privileges the construction and management of profitable connections. For train transportation this has spurred over decades the construction of new train lines between metropolitan cities or regions. Whereas connections between Paris and Brussels are abundant and expensive from central stations those living somewhere in between the 2 cities, for example in Mons, have had little chance of access to reasonably priced and fast train connections. This neglect of the in between cities is slowly changing. Sufficiently fast and reasonably priced connections allow Europe to grow together also at the margins. Public transport as alternative to car traffic across borders for „in-between cities“ will bridge the gap between the ease of travel between metropolitan an more remote areas. There is economic growth to be reaped as connected infrastructures allow for economic as well as social mobility and joint development. This is the real European challenge ahead of us and not the numerous summits without tangible results for rural and urban populations beyond metropolitan regions. For regions spanning countries, some will be finally reunited by better public transport a kind of ecological unification. 
HTML Mindset
The hypertext markup language (HTML) allows us to navigate on the internet. No matter which Browser you use on your device, it interprets the HTML-text for you in a specific way. This means: HTML defines headings, normal text, placeholders for images, actionable buttons and referrals to more text, images, or videos. A good HTML enabled textbook for pupils, students or any lifelong learner, for example, will embed easily images, sound recordings or video demonstrations in the e-book. This additionally embedded content asks for a different mindset for content creators: the HTML mindset.
Just like in most learning environments, learners proceed with different speed and interests. HTML allows for additional options to dig deeper into a subject, return to a previous stage, lead on from where you left off before, jump to some other content or listen to a translated paragraph.
Due to the bringing together of content from different technical formats, the HTML mindset has an interdisciplinary touch to it. Blending text and image is our usual way to process information at most exhibitions. In Hypertexts we are “walking” along our own chosen track through the knowledge space or content archive. For web creators, therefore, it is common to use so-called “content management systems” to arrange structure and present content.
The learning of HTML is enhanced through many learning tools (w3schools.com). This helps you to get into the HTML mindset of content creation and a better grip on the interlinked world. (Image: extract of HTML code of this blog post on www.schoemann.org).
AI Images
The creation of images using any AI system is fast and easy. Many people have tested the systems and experimented with the more or less explicit prompting needed for LLMs to come up with several suggestions. Through the use of AI in the creation of images you are indirectly become your own curator of these creations as you choose among many suggestions of AI for the same prompt. The next step in the process of these artifacts it to assemble several ones and submit your selection of images to a gallery for an exhibition. If you have a coherent approach or a specifically interesting creative idea you might get selected in a competition to show your AI assisted images in a gallery with a reputation to exhibit photography. The Brussels Photo Festival (2025) presented the submissions to a call for AI images with a broad range of AI assisted imagery. The focus of this project was on „historical events and figures“. In situations where images are absent such a newly created imagery might be helpful in re-creating narratives about undocumented wars or conflicts. Speculative fiction about other historical options or „roads not taken “ have found their way into museums of history even. Decolonizing imagery is an interesting aspect to get a grip on another way to view historical evolutions. Projecting biological growth processes into the future with pervasive bio-engineering allows is to imagine potential future scenarios. As AI in biology, pharmacy and nutrition is only about to rake off, the AI artists play an interesting role of new avantgarde in the 21st century before we shall be submerged by AI images on all social media platforms. (Image taken at Hangar.art 2025) 
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). 
Electronics repaired
The all electric society will have a number of consequences. We need to think about durable electronics. Many electronic appliances get broken rather quickly even by normal usage. The task to repair the beloved electronic gadgets of your children or simple electronic household devices reveals the fallacy of the consumerist societies. “Use it and throw it away, if it is not working any more”. This is the standard mantra of our societies. In order to save resources, we have to reuse, repair and re-engineer a lot of electronic devices. So far, the engineering process consisted largely in finding ways to assemble fast and with inputs as cheap as possible. The task of designing products that are repair-friendly, circular and allow to disassemble the product easily is a bit counter-intuitive to the consumerist society. If your juicer lasts for years, you will be unlikely to buy another more fancy one or even a connected one very soon.
Repair-friendly design and assembling will be the next generation products of the all electric society. Plugs, interrupters, relays and electric engines of older devices will be valuable after the original use in a household product, which has seized to function. Many parts can be put to other use. Re-engineering with sustainability in mind has an important function also in the move towards gaining autonomy again. For the repair of electronic devices we shall focus more on fine motor skills of our hands again. The shortages of electronic components to build cars after the Covid-19 crises and the disruption of supply chains for other reasons provide a good lesson to advance faster in the direction of electronics repaired. 
Synthetic opioids
Across the globe there are many tough lessons to be learned about synthetic opioids. These psychoactive substances fall under special legislation and can only be used with medical prescriptions. The strength of these substances is usually compared to heroin and the risk of addiction to these substances is very high.
A recent paper in International Review of the Armed Forces Medical Services (2024) has highlighted also “the abuse of the synthetic opioid U-47700” at times of military conflict. The power of these drugs to suppress the feeling of pain is helpful for medical operations. The abuse, however, may consist in the use of the drug to “keep fighting whilst pain is suppressed”. Such use of synthetic opioids increases the risk for addition and the fatal consequences of overdoses. The reporting of such occurrences in a specialized medical journal is an important warning against the conscious and willingness to abuse the drugs for war purposes.
The finding reminds us of the abuse that was already widely spread during the Nazi led 2nd World War (“Der totale Rausch“). The addictive potential was experiences even after the war time in terms of active combat was over. The costs to society of such abuse as well as use of supply chains of provision of opioids during peace times remain a problem for many years after the war. After a war, the war on drug abuse continues. Fighting addiction is a lengthy and painful process. 
Defence Spending
As in research there are many dual use products, which can be part of defence spending. Robotics in production or rockets to launch satellites for telecommunication are such examples. Much less known to the public is the amount of military spending that goes into medical developments that benefit both the military as well as the civil population. Countries build a whole ecosystem round the provision of medical services for defence purposes , which consists not only of a sufficient number of qualified persons, but also companies that provide specialised products. Most of them have civil applications as well after minor adaptations.
Oxygen provision was a prominent example of a product that has civil and military uses in treatment of respiratory infections or contaminations. A mobile transportable operation table is another element of daily rescue services as well as potential use in situations of conflict, just like anesthesia machines. An increase in spending on such infrastructure and the necessary long-term training of persons operating and maintaining these medical applications take time and considerable financial resources.
The current debate in Europe and NATO neglects the considerable time delays in production and provision of the equipment. Research on “Skill Needs in OECD countries” has shown the substantial delays between sudden skill needs and the time to train high-skilled persons.
The International Review of the Armed forces Medical Services is a journal dedicated to publish up-to-date information on needs of medical products and persons trained to use them in special emergencies. The need to safe lives in extreme and dangerous conditions needs preparation of thousands of specialists. Of course we hope that such an incidence will not happen. The persons and material have an obvious potential to serve the civilian population in more peaceful times as well. The unfortunate “hog cycle” in skill provision is not a problem for dual use products or services.
(Image: edited extract of a mobile operation table) 
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. 
Space Missions
As we realize that critical infrastructure on earth is not safe in times of military conflict, space missions have become an additional form of competition between countries, continents and alliances. India has accomplished in January 2025 the coupling of 2 space satellites. The level of technological knowledge to achieve the coupling and decoupling of satellites included among other competences the mastering of algorithms that control sensors and propulsion. Beyond the communication cables on earth, satellites can assure telecommunication services, if other networks are interrupted.
The Indian Space Research Organisation (ISPO) has announced the successful “space docking experiment” (SpaDeX) and joins the other 3 countries US., Russia and China as the 4th country to achieve this. The race in space and to space beyond earthly competition shifts attention also to the additional category of a race to technological innovation and applications of those. Since the war of Russia in Ukraine we know about the “dual use” factor (civil and military) of satellite technology. Satellite images of your own country are helpful in many respects ranging from weather forecasts, rain, draughts and habitat changes or population movements. Early warnings of flooding are surely important civil applications. Movements of military equipment by potential enemies are much needed early information, which increases warning time spans. With more satellites in space the good as well as the dangerous potential is expanding. Sovereignty in the 21st century certainly has a technological dimension. Therefore, the demonstration of satellite coupling in space accomplishes not only a dual use achievement, but also fulfils a triple use or ambition. The 3rd one is political. Hey, look we are also watching you, or might do so.
(Image: Robert Indiana “Imperial Love” 1966/2006 in Berlin Neue Nationalgalerie) 
Indigenisation
In reading up on the « all electric society » it is useful to see what the international market has to offer in innovation of electronics, but also to understand the potential of mass production. In this little research the came across the „Electronics for you magazine“ (LINK) from India is a great source. Trends of miniaturization of electronics and power savings for consumer products as well as some high tech space and wave technologies receive systematic coverage.
The November issue 2024 (p. 63) used the term „ Indigenisation“ to refer to the process of a country’s own technological development to ensure independence from being cut off from advanced technologies. Producing in India for Indian use seems to be an answer to economic and technological risks. India‘s space exploration program builds on own supply for civil and probably military purposes as well. Indigenisation of production, therefore, is an adequate term for own indigenous production of specific advanced components.
Contrary to the trend of globalization, which dominated the 2nd half of the last century, „Indigenisation“ is likely to dominate numerous sectors of the economy in the coming years. Made in India is, of course, a brand. Small countries might find indigenisation more difficult to achieve. It needs to be checked, whether indigenisation or „self-reliance“ (Atmanirhbar Bharat) implies plural societies and identities to the same extent. 
Drawing Drafts
The exhibition “Drafts – From Rubens to Khnopff” at the MRBAB offers an art historian’s view on the role of drafts in the creation of art across centuries. You will not be surprised to discover that drafts played and play a crucial role in creative works. With a restriction to drawings, paintings and sculptures, the exhibition highlights the “creative gesture” originating in a sketch of a detail of a body, a face, the body, compositions of forms or perspectives on space. In some instances, infrared reflectographic camera technology or similar techniques were used to reveal the so-called underdrawing of a painting to allow the comparison of a draft with the “finished” or “published” version as an oil painting. The time span across centuries allows to stress the importance of drafts and drawing rather than the spontaneous creation of a unique piece of art. The 20th and 21st century saw this process of creation challenges by several artists and performative versions of art. The basic creative process, however, remains an important pedagogical access to better understand art and its creation.
The curators of the exhibition Bücken and Maréchal (MRBAB) encourage visitors to use pencils and paper to try out the technique of pencilling or just to try to a sketch of something of interest. This certainly contributes to let the message and encouragement to create yourself sink in to the memories of visitors. All in all a very modern view on old and not so old masters.
(Image: Triple view of Jacques Jordeans, Allegory of fertility of the earth, 1623-25 MRBAB).
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. 
Californication
In a song by the „Red Hot Chili Peppers“ the term californication appeared for the first time as far as I remember. This song is rather critical of the superficial californian way of life. The belief in the dream that you may get rich quickly in California has suffered another blow wit the thousands of homes burned in the wild fires in January 2025. Dry and arid areas are spreading and the lack of water makes it very hard for firefighters to protect homes, particularly in difficult to reach valleys. Stormy weather adds to the speed of fire spreading. All these elements are predictable additional risk of climate change. Californication is the old and new word to describe a trend of acceptance of increasing climate risks by at the same time neglect of environmental precaution. Hollywood is just around the corner there and the film industry might come up with some other narratives than just the previous californian dream. Get rich fast, then run away. Sustainability is a more difficult concept and yet it keeps getting more and more attention. 
Enshittification
Don’t laugh. This is a very serious scientific term to describe the way social media function in the 21st century. The scientific reference goes back to 2025 and article in “Science” by Kai Kupferschmidt. Twitter, now eXit, like most other social media platforms uses algorithms that select posts for you from the millions of posts that are likely to induce a reaction from you, which prolongs your time on the platform. Additionally, eXit Twitter applies an algorithm that prioritizes accounts with already a huge followership, which makes these accounts even bigger. The result is an increasing inequality in attention to info, facts, fake news, but also revenue for the platform owners through more advertisements. As hate speech and fake news are commonly perceived as shit, many social media are happy to spread more shitty things on their platforms as this generates more money for the platform as well. In short, enshittification happens sooner or later to most platforms and we all suffer from this. As user of these platforms, it is hard to escape from this process, as most platforms tend to “convert” to enshittification at some later point in their life cycle, unlike babies who manage to quit this phase after a few months. A move to Bluesky might be indicated, but there is no guarantee that the same process will just happen again. Mastodon is another small twitter-like platform that like Bluesky offers a more open approach to its governing algorithms and a more controlled access in the registration process.
To avoid enshittification, we have to be ready to move away from one platform to another one, just like changing bank accounts or club memberships. Make sure to take most of your friends with you and there are already tools for this online as well. Enjoy the safe online life again on another platform or consume more of the traditional media like newspapers, radio or tv with proven quality. (Image: extract from Jan Steen, 1625-1679, The Rhetoricians – “In liefde vrij”, MRBAB) 
Investment Disinvestment
Asume we live in a world of fixed amounts of investments. The option to invest in a new project or product will automatically reduce the amount of investment in another product. The investment decision, therefore, is subject to opportunity costs. A recent study by Naci et al. (2025) applies this rationale to the investment in new drugs compared to financing other traditional treatments. The results for the U.K between 2000 and 2020 revealed that the „quality-adjusted life-years (QALYs)“ is not in favor of the investment in new drugs. The relatively small numbers of beneficiaries of the new drugs is compared to the many other persons who could have benefited from the less costly previous treatment. Investment in one new drug causes disinvestment in other ones. The overall balance for the UK turned out to be negative. Particularly the disinvestment in prevention of diseases appears to have very detrimental effects in view of the results based on this study. Preventative measures are relatively cheap compared to the estimated 20.000 pounds for one additional quality adjusted year of life for a new drug. The message is: choose your health investments wisely to avoid ever rising health costs and health insurance. (Image: rest room Belgium) 
More Battles
In 2025 we continue with the same battles as in the previous year. However, the way armies fight military battles has evolved. New types of weapons like drones have entered the stage. These precision weapons (Horowitz, 2024) have the advantage to be not only less costly than other heavy mass and costly artillery, they can also be guided in swarms to their targets. A further advantage is the steering of drones needs differently qualified persons rather than advancing with heavy armored vehicles on battlefields. Upskilling of defense forces is an important side effect. Jamming technology of radio frequencies was applied before, nowadays this has turned into a crucial defense strategy to intercept and derail drones and rockets off their intended targets.
Other than heavy weight arms, even laser beams enter the arsenal of weapons, if targets are sufficiently static in nature. These high-energy beams are still more in the research and testing realm rather than used on the battle field, but it becomes clear that research capacities play and played an important role throughout military history. The next generation of robots, not only in production processes, but more those walking on the battlefields is likely to change wars to less manned interventions. The technological innovations shall further move the spiral of new generations of weapons forward. Fewer soldiers, but more robots in the air, at sea and on the ground might increase the risks of “restrained”, less costly, but longer duration conflicts across the globe.
I always thought of robots as rescue robots to save lives. The flip side of the coin, however, is destruction before rescue as well. Technology can be put to both purposes. It is us who decide, which one takes the upper hand. 
Art Physics
Art is a matter of perspectives. In physics the change of perspectives and even theories about perspectives using optical instruments or illusions enlightens our understanding of the universe. 2D or 3D perspectives by V. Vasarely add yet another dimension through the oppositional hanging facing the Hollow Mirror Objects (convex and concave) by A. Luther (see images below). The curators succeeded in putting both art works with their incorporation of physical principles in an enriching dialogue. Art speaks to us in many languages. In more general terms, there is an underexploited aspect of exposing art. Rather than focusing on a single artist or school of artists in particular, exhibitions may focus on the interrelationships and new ways of combining or communicating images. This is human intelligence. Artificial intelligence will do this without prejudice and my own private collection of images of art works as a similar fountain of innovation as well. (Image Exhibition Neue Nationalgalerie Berlin 2024-12). 
Air Concept
Well yes, this is the latest fart in design and architecture. The Berlin International University of Applied Sciences composed an exhibition on “Air Architectures” which takes air seriously. The international group of 7th semester students took Air Architecture seriously and developed their ideas in the context of a curated exhibition. Nice semester project.
Air is a fundamental precondition for humans to (co-)exist. The biology of air (breathing) or the chemistry of air (fine particle matter) have been studied extensively. The physics of air flows in cities receive more attention as well in architecture. Interior design has yet a lot to contribute in the age of heat pumps and air conditioning.
Let’s think architecture from the perspective of air and air flow. Depending on our cultural background we might have very different associations with air. Indian or Chinese practices like yoga or Tai Chi teach us to take air more seriously than Western practices. Most architecture in cold countries of the northern hemisphere aim to keep air to the outside of buildings. Yet, the percentage of humidity of air is a serious concern of architecture as well. Air flow and quality then becomes a key issue of construction and architecture, somehow through the back door.
Maybe in approaching architecture we might think first of what is or has been the architect’s concept of air or aerodynamics. 100 years after the death of Gustave Eiffel and the Olympic Games in Paris, we still gain from thinking about air (not only air pollution) and its dynamics. Looking forward to the next generation of air architects.
(Image: Exhibition, Air architectures, at Berlin International, University of Applied Sciences 2024-12) 
Chinny Trait
In evolutionary biology there is still a discussion about the functional explanation of why humanoids developed a chin. A recent paper by Meyer-Rochow adds a new functional explanation for the evolution of the chin to the literature. Across cultures and sufficiently distant populations of humans, similar patterns of the use of the chin have been observed. In comparison to other species under the superfamily “Hominoidea”, our bites are only of minor strength and apes, Orang Utans have not developed a chin quite like us, homo sapiens. Origins of the chin as “weapon” in fighting and broader social selectivity remain hypotheses without sufficient proof of evidence.
In addition to the functional explanations of easier “mastication” or formation of words, chins might serve as an additional part of the body to hold items to the chest. This function, of holding tools or stuff could have been an advantage for our ancestors and became a favoured trait. During the pandemic our chins became a supporting or hindering reason in the struggle to wear masks for extended periods of time (see image below).
Nowadays, we ask ourselves about the social selectivity into becoming a violin player with this important function of the jaw and chin to hold the instrument. A rival hypothesis is, of course, that holding things with our mouth, like needles or screws, in sewing or handicrafts could eventually make the chin disappear. The bipedalism of hominids, freed our hands for other tasks and the evolution of a chin could similarly reinforce the efficient use of our hands.
Novel use cases for the chin, like holding your smartphone while typing on a keyboard or while opening doors, might enhance the chinny trait of hominids.
Over hundred of thousands of years the interaction of the bio->psycho->social (BPS) spheres of life may have interesting traits for us down (or up) the evolutionary line.
(Image: European parliament, Brussels 2020-7-23 address by Ursula von der Leyen in “masked assembly”).
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.
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. 