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. 
January Spring
The early signs of spring in Europe usually show up in March. The monthly data from the Copernicus Climate Change Service (C3S) show that „average temperature over European land for January 2025 was 1.80°C, 2.51°C above the 1991-2020 average for January,“ (Link). The warming throughout January has several consequences. Vegetation starts into spring earlier. This means that people with allergies of early flowering suffer earlier during a year. Winter rest in animal lives will be shorter. The risks of droughts in some regions combined with floods in other regions is increased as well. Rockslides in the Alps and flooding in Italy and the Baltic states add to the costs of climate change.
Western Europe, witnessed a relatively „dry January“, even for those who kept drinking alcohol throughout the month. Heating and heating costs came down a bit and friends of gardening were surprised by some early showings of flowers of spring even in Paris neighborhoods (image below) as early as the first few days in February 2025! Strange new world. It all seems to happen a bit faster than most scientists expected. Time for adaptive behavior is shortened as well. 
Review Year
It is a nice common practice to wish „A happy New Year“ to people at the beginning of another calendar year. It is also a good practice to review the last twelve months yourself or with friends. We spend,however, much less time to listen to friendly or enemy fire as a kind of evaluation of what were the successes and failures of last year. In monarchies in the middle ages a clown or a fool was allowed to present criticisms with funny packaging. Nowadays, comedians have taken over this important role to review experiences and policies that worked or went awfully wrong. All media join in in this tradition and summarize what happened before the next busy months take over. Yes, it is important to devote time to this procedure. There is a risk that it becomes „the same procedure as every year“, but it is never to late to learn from failures or simple mistakes. Failed last year, fail better next year. 
Question Tomorrow
« Tomorrow is the question ». This is the imprint on the 8 table tennis tables in the Martin Gropius Bau 2024. As part of the Contemporary art exhibition by the artist Rirkrit Tiravanija, the tables are very busy throughout the day and invite people to meet, play and greet. If tomorrow is the question, today is the answer. Is it? Maybe the answer is the day after tomorrow? Time appears to be the answer and the question. Such questions touch on basic philosophical questions about our relationship to and concept of time. Future orientation or even the belief in life after death touch upon basic religious beliefs. Intergenerational transmission is useless if there is no tomorrow or concept of tomorrow. Sustainability is most relevant if we are convinced there will be a tomorrow. Fatalists or warmongers rate today so much more than tomorrow that everything is subordinated to the urgency of now. Not easy to strike the right balance between „for now“ and „for tomorrow“. Simple financial discounting of benefits which accrue only tomorrow do not solve the urgency issue of behavioral concerns. My personal discounted value of ice cream tomorrow might be superior to ice cream now, but it is based on the tacit assumption that the shop still exists tomorrow or any other time in the future. The exhibition invites people not only to play table tennis but also to discuss the question of tomorrow across language barriers and across tables and cultures. 
On Temporality
Time is passing, or is it? We tend to confound time, with passing of time or an occurrence at a specific point in time. Time has a static use, which refers to a date of birth or date of death. Time refers to durations like the lifetime or time in office of a person or a political leader. In most such cases time is considered as a continuous and linear process. The concept of temporality questions these common perspectives on time to allow additional time perspectives in the description and understanding of time.
Temporality is linked to a more flexible view on the periodization of history. The time before and after the 12 years of Nazi-terror will then be part of the extended periodization of the Nazi-Regime in Germany and Europe. Similarly, temporality widens the perspective on social phenomena by linking historical events to the time before and maybe even to what follows, seen as a consequence of the temporal and spacial co-evolution.
A deviation from the static view of time and a rigid periodization of fascism allows to study the Russian male dominated political authoritarianism as a new wave of fascism in Europe, which negates the right of existence of the state of Ukraine in its neighborhood.
Temporality expresses the need to go beyond a simplel periodization to include a spacial dimension in the defintion of time, much like modern physics does in relativity theory. Temporality, therefore, opens up a “thought space” beyond just the timing of events, which may challenge many of our day-to-day experiences. Cultures with a different understanding of time or the pace of time become a “sound board” for our way of considering and being captured in a time space. Probably many artists are forerunners in playing with time and the way time is “treating” them. Most of them face(d) hardship during their lifetime, but have an extended “after life” in terms of reputation. Some contribute to the perodization in the arts and of their time. They all shape(d) temporality.
(Image: extract from Hans Bol, 1593 Ring Jousing in front of a pond inan imaginary city, MRBAB, Brussels)
Traffic Speed
Most people use cars or other automotive vehicles (e-bikes, e-scooter) to get faster from point A to point B. However, speed of traffic causes trouble for other groups of mobile persons. Demands on attention rise, despite the abundant use mobile phones even during driving a car. Mapping systems and services from A to B have become an almost daily exercise. Statistics on road accidents that involved inadequate speed are between 20 and 30 percent of all deadly road accidents, depending on the source of information and country (Example D). Frequently, speed is not the only cause, but other behavioral mistakes occur jointly.
Traffic signs are a basis to make drivers aware of accident prone locations. Too many of them may even lead to the opposite effect of ignoring the signs. Reducing the speed of traffic in inner cities is a steep challenge and many cities invest substantial amounts of money and effort to monitor and try to control better excessive speed. Schools, sports centres and shopping areas are all hot spots of automotive and pedrian encounters. They deserve special attention. Penalizing excessive speed is one way to nudge behavioral change. Although the statistics on the huge amounts of penalties awarded does not seem to alter the behavior of traffic participants in the short run. For some it appears to be a regular part of their budget of mobility with no consequence for behavioral changes.
For years the dangers of inadequate traffic speed in cities made young families and older persons leave more risky inner cities, but adaptations of hot spots and increased control systems seem to work in the long run. The “externality” of inadequate traffic speed is higher costs for the health system and society at large. About time to make a “behavioral turn” in traffic speed. 
Waiting time
A new report by Darzi, a former cancer surgeon and past minister of health in the UK, paints a dismal picture of the British health service (NHS) over the last 15 years under conservative rule. The public service has seen no increase in its budget accounting for population growth and the aging of the population. The service is no longer able “to give patients the timely care they need” (The Guardian 2024-9-12 title page). Increased waiting times lead to an estimated 14.000 premature deaths per year. Darzi presents data that show 300.000 persons had to wait longer than one year for a treatment that should have been performed within 18 weeks.
The staff seems desperate for changes as well as they have to spend more time on management of waiting times, time which is lost for real treatment. The quality of care is another issue which awaits urgent attention. Health cannot wait for most patients, but the neglect of investment in hospitals and people is expensive in the longer run. Even the reform efforts should not wait any longer. Time is a precious good and each life matters. (Image back cover of exhibition catalogue Käthe Kollwitz at MOMA 2024).
Commemoration Paris
The cemetery “Père Lachaise” is a spacious area of commemoration in the 20th arrondissement in Paris. Many famous people have been buried there or moved to this cemetery eventually. Edith Piaf, Gustave Caillebotte or Frédéric Chopin are known across borders. You find also a small monument for the controversial founder of homeopathy 200 years ago “Hahnemann” there. He spent his last 8 years in Paris before he died at the age of 88 in 1843. From a social science perspective it is interesting to note that commemoration is much more decided by the descendants like in the case of Hahnemann or the popularity of the person, like for Piaf, than the person her/himself. The tradition of joint graves for families holds for the Paris born painter and collector Gustave Caillebotte despite his movements to other places. The freshly cut flowers on the grave of Piaf show that the performances of the artist have made deep and lasting impressions.
Olympic Travel
Paris 2024 made it necessary to travel between Paris and Marseille for some sports. This can be cumbersome if you miss a train. Waiting time is usually not perceived as a comfortable time. The Paris Gare de Lyon, which was built for the Expo Universelle 1900, however, can make your waiting time a rather comfortable experience. The Restaurant “Le train bleu” offers breakfast French style, lunch or dinner. The time passes by living like 100 years ago when traveling by train was still a luxury form of getting from A to B. The comfortable train stations of that time have become busy hubs of mobility and commerce. Missing a train or just acting as if you missed one becomes an almost historic, impressionist or maybe surrealist journey in itself.
Time Perception
There are many different angles from which to look at time. Of course, we all do it several times a day or during boring meetings. The study by Ma, Cameron and Wiener (2024) highlights the bi-directional link of perceived time and memorability. Visual stimuli alter our perception of time. Watching a video we all make the experience that the perceived length of the time spent watching varies according to content and maybe only the cutting technique applied to shorten the perceived length. Similarly it has been demonstrated that looking for longer at an image and grasp the meaning or implicit story we tend to remember the image for longer. In courts it is a usual procedure to question the memory capacity of persons and the sources of bias. The study by Ma et al. demonstrates the impact of the size of the scene, how cluttered it is and aspects of memorability in visual perception. Our memories are co-determined by these factors. The other direction of causality i.e. that memorability determines the time perception seems equally at work. This apparent undetermined element, so far, calls for additional care when analyzing recall from memory. Memory is not only selective in terms of content, it also is subject to the impact of all sorts of visual stimuli.
Time can be many things. For humans it is everything but exact. In science we measure time with ever more exactitude and try to standardize time on the moon now. In addition to exact time, humans have perceived time and subjective versions and even concepts of time. About time to take time more seriously. 
Series Evaluation
The monitoring of TV series is a serious science. The evaluation of so-called binch viewing has redrawn attention to the field of media studies again. We observe a bit across Europe, following the US experience, the change of TV productions into series that may run over several years. The successful format of a TV series draws advertising to the relatively constant audience. Most series have a particular age group as their target group. Viewing behavior determines time slots allocated. Each group has its own prime time. The publisher of books had their successes with similar series of for example children’s picture books or cartoons. Asterix, Martine and similar book series have basically applied the same “serial” mechanism before. Popular success creates its own dynamics. Therefore the evaluation of such serial productions should stay on our research agenda of the social sciences as well.
In a radio discussion “France Culture” has juxtaposed the 2 currents of series evaluation in a concise way. One current of assessment holds the view that rather than high versus low culture, the debate should take popular culture seriously. It augments the set of experiences as the characters in a TV series live through a kind of “experimental setting” each time anew. The variety of experiences is catching popular attention as they are beyond the scope of the spectator’s usual life settings and thereby a learning opportunity. This highlights the value of the content in the evaluation. This requires a thorough scrutiny of that content to evaluate an emancipatory value of viewing it (Sandra Lauglier, 2023).
An opposing view is defended by Bertrand Cochard (2024) with reference to the conflict about one’ use of free time available to us and how we spend it. His criticism takes issue with the amount of time “lost” by viewers of series. Time is not spent twice. The loss of time alone or side by side rather than spending it with other persons or physically active constitutes a major risk to the social fabric of society.The jury is still out on the issue. We likely see the start of a series of entries on this topic as well.
Modernism
More and more people move into cities. A modern way of living is more accessible there. Besides abundant car traffic public services of transportation like buses and underground are within easy walking distance. Culture, science and education offer attractive opportunities for learning, working and leisure. Diversity is an additional asset most people appreciate of cities. The chances to live your very own way of life are much easier to achieve and thrive in as in remote or rural communities. “Birds of the same feather flock together “. It is easy to find likeminded people among a million people than among a hundred particularly if you’re a bit off the mainstream or avantgarde. The excitement of birds passing the city can reach the emotional force of Hitchcock’s famous movie “The birds”. Even in the modern world we not quite sure what these creatures are up to. Is it a swarm of drones? Are they out of control? Modernism has brought us many amenities, we have to make sure that we really are still in control.
Ethics of posterity
We have not inherited the earth from our ancestors; we are borrowing it from our descendants. (native American saying). Adeline Johns-Putra (2019) states this early in her book on “Climate change and the novel.” Her concern is how to think and write about the ethics of posterity. Approaches of ethics in the sense of parental care (for the planet) or motherhood environmentalism do not suffice in view of overpopulation of our planet. Shifting our identity away from toxic production and consumption is advocated in many novels. Science and science fiction offer many dystopian examples.
De Shalit (1995) wrote early on why posterity matters. It is not the standard of living of contemporaries that matters but we should consider ourselves as a part of a transgenerational community. The time horizon of our decisions matters. In pursuing arguments by John Rawls who re-established a contractionalist perspective on justice, we have to include future generations into our contractual obligations. Following this approach we might arrive at Brundtland’s perspective on the ethics of posterity which is called sufficientarianism in opposition to simple utilitarianism. In sufficientarianism we owe future generations a just and decent living or at least the possibility to have similar starting conditions. Shifting beyond the apocalyptic view of environmental disasters Adeline Johns-Putra (2019) brings to the forefront that we have to substantially lengthen our time horizon both for consequences of climate change and for dealing with it, albeit the fact that most destructive practices operate much faster than the re-establishing of greater biodiversity.
P.S.:Thanks to the curators of the Lese Lounge Staatsbibliothek Berlin for ease of access to the literature.
(Image: Natur & Kultur in “Extreme tension: Art between Politics and Society” Collection of the Nationalgalerie 1945-2000“. 2024-1) 
Time6
Time that has passed, is subject to evalution and re-evaluation. Our memories work continuously on various representations of time in our mind. Memory management is one such example. Artist have also coined a phrase for a particular form of time management. “The assault of the present on the rest of time” Alexander Kluge had chosen this as the title of a movie on film-making and Katya Inozemtseva had chosen this as the title for the exhibition in Berlin 2023-24. Pieces of art may serve as evidence in court as testimony for war crimes. This is one of the challenging issues of this exhibition. The present uses evidence from the past to illustrate what happened. Re-interpretations are part of this process as well. It is not too rare, that in the present a reframing of the past may occur. Some try to alter the representation of the past (crimes committed long ago) as of minor importance. Such intentional misrepresentations represent the assault of the present on the past. It may eqaually be attempted to limit the scope of future options. The diesel engine is not the best technical solution for mobility of 8 billion people living on this planet in 2024. The reflection on time needs to take care of the “back shadow” and “forward shadow” of the present. On the individual level, today’s action might be largely determined by past events, experiences and transitions, but they pre-determine to some extent also future events.
Conditionalities shall occur and accumulate, for some more than for others. Some call this scar-effects, others the narrowing down of options. Life reviews may apply a reframing exercise, sometimes even to liberate yourself from the boundaries of the past to open up new or more future options. The time-space subject which ranges from experience to fiction is the matter of literature and cinema. Some people seem to choose to live in a fictional world for whatever reasons. Rather than a linear concept of time, the artists appear to imagine time in some form of a spiral: from the present you turn backwards in time to project yourself into the future. Maybe, we are caught up in some unresolved narration of the past, to try another projection into a different future. We see one or many movies grow out of this fictionalisation of the present.
The study of the life course remains a formidable challenge. Testing the reliability of sources to separate fact from fiction has overriding importance. Biographies derived from facebook or instagram entries over decades have to deal with this fictionalisation of the self even more than we were used to from other data sources. The basic challenge of the representation of time throughout the life course, however, remains the same.
Source: Kluge, A., Evans, T., & Liebman, S. (1990). The Assault of the Present on the Rest of Time. New German Critique, 49, 11–22. https://doi.org/10.2307/488371 (Image: Exhibition Brücke Museum, Lea Grundig, Unterm Hakenkreuz: die Hexe 1935, Zentrum für verfolgte Künste, Solingen). 
Sleeping
Sleep is a process. That is why it is best to talk of sleeping rather than sleep. There exists abundant research on sleep and more and more acknowledge the process-like characteristics of sleep. The medical literature deals a lot with sleep apnoea, which constitutes a serious health condition. Time use surveys establish links between daily activities and sleeping for example. The social context is another influence on sleeping. Friends and family co-determine sleeping patterns as well. The latest better understood impact on sleeping depends on the use of technological devices before and during sleeping. Smart phones reveal themselves as not so smart if it comes to the quality of your sleep. At least this the result of the study on „bedtime technology use on sleep quality and excessive daytime sleepiness“. It yet another field in which technology is slowly creeping under our skin and we have to learn how to handle negative side effects before they endanger our physical as well as mental health. Bedtime routines or reading without a screen before falling asleep appears to be a worthwhile way to improve sleeping. Worth trying out again and again.
Calendar Time
We all use calendars to organize our time almost unconsciously. This is helpful to organize and synchronize our time together. Working time, family and individual time tend to use the same time structure to facilitate community. Work arrangements depend a lot on a common method to structure time. The work-life balance hinges a lot on synchronization of calendars and joint time slots. Towards the end of the annual vacation period in Europe the annualized change of calendars is still common practice despite most people going digital. Annual overviews allow to allocate and potentially synchronize calendars for major events or periods (next break, period devoted to learning, family planning etc.). A cleavage that differentiated Europe in the analogous times was that some countries like Germany use(d) chronological calendars running from 1st of January until 31st of December and counting calendar weeks (1-52). Many other countries have long ago moved on to “functionalist” calendars running based on the school year from 1st of September to 31st of August each year. Different planning horizons appear to be the obvious outcome. Whereas the former might focus on the planning of the end of the calendar year 2023, the latter functionalist calendars begin to structure the new year-long period 2023-24 including the next summer break towards the end of the next schooling year.
In France you start end of August 2023 to plan ahead until end of August 2024. This comprises the Olympic games in Paris 2024. Don’t worry, most tickets are sold out already and attributed through lotteries. When people in Germany start to buy calendars for 2024 and organize a printed calendar, this occurs traditionally around Christmas time and New Year’s celebrations.
Specific professions follow their own calendar time. Academic years or accounting years may well differ from the other annualised organisation of time through calendars. Of course, religions have established their own calendars just as migrating birds or French revolutionaries in the 18th century. Meteorological calendars or sensor-based structuring of annual sequences of seasons like in trees, plants or insects add to the impression of the existence of multiple clocks. 
A de-synchronisation of these multiple calendars increases the need to coordinate societies within or society and the economy, religion or ecology. I liked my printed calendars over the years. Now I shall print different versions for different countries and functions. I still wonder, if my life got easier or more complex. Probably, it has only become easier to organise complexity and diversity. Clock 6 video
Workation
Take work, take vacation = workation.
Take flexibility, take security = flexicurity.
Take business, take leisure = bleisure, not pleasure.
Blending notions or building hybrid terms is a powerful way to get discussions going or to challenge standard notions of work, security and leisure. At first sight these hybrid notions give the impression of a new, interesting approach to an established narrative. Adopting a new hybrid notion allows to blur the well-defined borders between established definitions. New narratives have their imaginative charm about them, only these hybrid notions tend to tip the balance in favour of work, flexibility and business, most of the time.
Additionally, there is a generational effect to it. Younger generations feel already more at ease with english-sounding new concepts. Feeling part of a new, cool approach to work is catchy. However, do not forget about the second part in all these notions: vacation, job security and leisure are fundamental rights of workers. Health and safety at work and in the medium- and longer- term depend on the latter notions. Sustainability and prevention of burn-out as well as depression hinge on taking time for leisure and vacation. Something nice in the immediate, might turn out to be very costly later on. Shifting costs related to health from employers to employees (or society) at a later time is in the end an unfair deal.
Just try a workation once and you are likely to value a real vacation much higher the next time. Why not do a workation in reconsidering the distribution of work within your household, couple or family. In this sense I am all in favour of a workation for men, most of whom still shun away from a fair distribution of care work at home. Happy Workation! 
Ukraine Diary
The gallery curated by Dr. Justyna Napiórkowsak in Brussels has another ongoing exhibition with art work from Ukrainian artists. As before in the exhibitions on the war of Russia in Ukraine, they put a major emphasis on the independence and resilience of Ukrainian art despite the ongoing war. To keep a diary of atrocities, but also survival and resistance to violence by Ukrainians, is a great effort. It stems primarily from artists that struggle to find adequate material to keep working or not to succumb to the participation in active war or military defence efforts. Using soft colours, water colours, has a rather symbolic meaning, after the inundation caused by the explosion of the huge water reservoir on Ukraine’s territory. Producing art in form of a diary, like reporting daily to yourself and the outside world as well as later born persons, has an important historic function, too.
No less than the “Diaries of Anne Franck” comes to our mind when thinking about a diary during war time. Russia’s attempt to eradicate Ukrainian culture is bound to fail. We shall cherish the Ukrainian diaries from the war time now and later. Thanks for reminding us of this collector’s duty to support the artists, writers and people of Ukraine. 
Aufarbeiten
Ganz anders als das Verb „reparieren“ lässt sich „aufarbeiten“ verstehen. Beide Verben beschreiben Prozesse, die schon mal einige Zeit dauern können. Manche dieser Prozesse haben eine scheinbar nicht enden wollende Persistenz. Anders als Autos und Maschinen allgemein, können wir Geschichte nicht reparieren, bestenfalls Versuche einer Entschädigung machen. Aufarbeiten von geschichtlichen Ereignissen, Kriegen, Menschenrechtsverletzungen und Unrecht kann viel schwieriger sein. Rechtsausübung von Unrecht, das in historisch gültige Gesetze gefasst ist, gilt als rechtspolitisch wenig angreifbar. Moralische Bedenken späterer Generationen, beispielsweise, sind wie der historische Gegenstand selbst, zu kontextualisieren.
Diese geschichtswissenschaftliche Herangehensweise an historisches Material hat seit einiger Zeit eine zusätzliche verlegerische Heimat gefunden. Der Kugelberg Verlag, Verlag für historische Sozialforschung verbindet einen biografischen Ansatz der Aufarbeitung von Geschichte mit einer organisationssoziologischen Perspektive der mittleren Führungsebene als Funktionselite. Zusammengenommen ergibt sich aus dieser Verbindung von Mikro- und Meso-ebene des Nationalsozialismus eine wichtige Ergänzung der Aufarbeitung der Schrecken und Verbrechen der Nationalsozialisten. Das Büchlein von Dr. Wolfgang Proske „Kleine Herrgötter! Die Kreisleiter der Nazis in Bayern“ ist bereits in der 5. Auflage im Kugelbergverlag erschienen. Die sorgfältig recherchierten Beiträge bauen auf den Arbeiten zu den umfangreicheren 20! Bänden „Täter, Helfer, Trittbrettfahrer – NS-Belastete“ in Bayern und Baden-Württemberg auf. Die bereits mehr als 250 AutorInnen, versammelt in diesen Bänden zu den biografischen Recherchen, vereint ein einmaliges, zu Recht mehrfach prämiertes Aufarbeitungsprojekt von lokalen Geschichtsinteressierten und -werkstätten.
Die Multiplikatoreneffekte solcher „Citizen Science“-Projekte unterstreicht die Bedeutung von „bottom-up“ Vorgehensweisen. Erst die Zusammenarbeit von diesen vielen AutorInnen ermöglicht die Zusammenschau und genügend tiefe Einblicke in den Aufbau und die Funktionsweise der menschenverachtenden NS-Maschinerie. Geschicktes Infiltrieren von allen möglichen Machtpositionen in früher Zeit schnürte das Netz des Terrors immer dichter. Daraus ergibt sich eine immens wichtige Lektion für das Überleben von Demokratien: Wehret den Anfängen! Keine Freiheit und Machtpositionen den Feinden der Freiheit! 
Rhetoricae artis
“Die Kunst der Rhetorik und der positiven Fähigkeit” ist eine kleine Wissenschaft. So hieß es bereits 1475 in dem von Guillaume Rardif veröffentlichten Buchdruck aus dem “Atelier du Soufflet Vert”. (BnF, Réserve des livres rares, Rés. X-1118). Als Teil der Ausstellung zum Buckdruck entnehmen wir 5 wichtige Hinweise für die Kunst der öffentlichen Rede: (1) inventio = (Er-)findungskraft, (2) dispositio = Anordnung, Gliederung, (3) elocutio = Ausdrucksweise, Stil, (4) memoria = Erinnerungsvermögen, (5) pronunciatio = Urteilskraft.
Ein kritzelnder Leser hat mit Bleistift die 6 Teile angefügt. Exordium = Einleitung, Narratio = Erzählung, Sachverhalt, partitio = Einteilung, und schließlich die dialektik mit Confirmatio, Rufusation, Conclusio. Abweichungen von diesem rhetorischen Schema sind noch immer selten. Das galt wohl seit dem 15-ten Jahrhundert schon für Predigten und wissenschaftliche Vorträge. Alles altes Latein, oder was? Die heute übliche “Elevator-speech” folgt anderen Regeln. Die Aufmerksamkeitsökonomie und Flut der Informationen erzwingt viel kürzere Redezeiten. Die Nachhaltigkeit der Botschaft wird anders erzeugt. Bildlichkeit ist Trumpf in Erscheinung und Auftritt. Auch das will gelernt sein. Die Bücher damals waren selbst ästhetische Kunstwerke und dennoch Arbeitsbücher, leider nur für sehr wohlhabende Studierende. 
Feuer im Wald
Das sogenannte grüne Lunge kann immer öfter ihre wichtige Funktion der Klimaregulation nicht mehr wahrnehmen. Waldbrände begleiten den Klimawandel. Bereits 2018 gab es ein großes Feuer im Wald bei Paris. Im “forêt de Sénart” in der Nähe der Städte Montgeron, Yerres und Brunoy (nahe Paris) hat sich der Wald seit dem Feuer im Hitzejahr 2018 noch nicht erholt. Geld für Reparatur der Schäden fehlt und so lässt die notwendige Aufforstung auf sich warten. Der Verlust der Biodiversität durch den Brand lässt sich schwer bemessen. Brandrodung, gängige Praxis im Amazonasgebiet, hinterlässt auch bei uns mehrere ungewollte Folgewirkungen. Die Bewirtschaftung des Waldes hat die Schäden abgeschrieben, aber Zukunftsinvestitionen lassen auf sich warten. So heizt sich die Region Ile de France eben weiter auf und Millionen Käufer von Klimaanlagen. Die befördern in naher Zukunft das Wirtschaftswachstum, aber beschleunigen den Klimawandel. Wir wissen, dass es so nicht weitergehen darf. Nur der Wille, wirklich etwas daran zu ändern, fehlt an vielen Orten. Weiterso, wenn es kein Weiterso geben darf, ist die Schizophrenie unseres und des letzten Jahrhunderts. Lernen im und vom Wald ist nötig. Das ist unsere Lebensgrundlage. 
Bundesarchiv
Bundesarchive gibt es kilometerweise. Auffinden und Zurechtfinden in Archiven ist eine Vorliebe von historisch Interessierten. Eine Soziologie des Berufs „Historian“ muss wohl noch geschrieben werden. Die Pforte, das Gelände und die Eingangshalle des Bundesarchivs in Berlin-Lichterfelde sind für einige einladend, für andere naja, belastend oder gar belastet. Architektonisch an eine Kaserne der 1930er Jahre erinnernd, ist ein gewisses historisches Umfeld eventuell eine Einstimmung auf eine bevorstehende Recherche. Das freundliche Personal hilft unterstützend über die Registrierung und die Orientierung zu den Beständen hinweg. Sofort ist, wie beim wissenschaftlichen Nachwuchs, die Eingrenzung der Forschungsfrage von Nöten. Die Findbücher, die sortierte Ausdrucke der elektronischen Datenbank „Invenio“ darstellen, lassen einen die Vielfalt der Archive erahnen. Eine einfache soziologische Fragestellung „Homogamie in der NS-Zeit“, also die Praxis von Heirat von Personen mit vergleichbarem sozialem Status, vor während und unmittelbar im Anschluss an die NS-Zeit, verlangt mehrere Datenzugänge. Konstruktion des Zugangs von Männer- oder Frauenseite. Zentraler Zugang geht zunächst über die Bestandsdatei NS 1 „Reichsschatzmeister der NSDAP“. Aus den nationalsozialistischen Frauengruppen entstand am 1.10.1931 die NS-Frauenschaft. Seit dem 29.3.1935 genoss die NS-Frauenschaft den Status einer Gliederung der Partei unter der Leitung von Gertrud Scholtz-Klink. Der Bestand umfasst 3,5 Millionen Aufnahmeanträge und ist in Berlin-Lichterfelde einsehbar. Neben den Mitgliedschaften sind auch besondere Vermerke zu den Gebäuden und Grundstücken der NS-Frauenschaft (BArch/NS 1 5.2.6.4) bspw. im Gau Berlin dokumentiert (BArch/NS 1 2504 und 724). Eine Lebensverlaufsstudie ist da schwierig zu konstruieren. Ein Geburtskohortenansatz dennoch eine interessante Möglichkeit, eventuell auf die Muster von Netzwerken hinzuweisen. Parteimitgliedschaften, Vereine, Verbünde und ihre Rituale wurden scheinbar der Propaganda untergeordnet. Eine These, die es zu beweisen gilt. Die interreligiöse Andrews Chapel auf dem Gelände (im Hintergrund) lässt dann vielleicht wieder zur Ruhe kommen. 
Monitor SDGs7
The complete monitoring of the SDGs of the UN for global development shows a surprisingly large coverage of topics. The search function is indiscriminate of some contradictions or returns the same entry twice like in sustainable industry. However, the simple check reveals frequent and less frequent entries. Entries 1 = Poverty, 6 = Water and 14 + 15 = Life on Land and in Water received less attention. The agenda for the coming weeks is set. 
Menschen
Im Bundesarchiv in Berlin sind einige Fotos zu einer Variante der Vermessung von Menschen ausgestellt. Nicht nur in den Kolonialregionen wurden Menschen zu rassenideologischen Studien vermessen. Die Kurzbeschreibung dazu und die 2 Bilder reichen, um diese scheinbar wissenschaftliche Praxis zu dokumentieren. Zurecht wird auf den Skandal mit der weiteren Verwendung dieser Daten bis 1981 hingewiesen. Es gab Kontinuitäten von Wissenschaft die heute noch erschrecken lassen. Kritischer Umgang mit jeglicher Art von Daten gehört zu dem Curriculum guter wissenschaftlicher Praxis. Diese darf nicht vor ethischen Fragen Halt machen, auch wenn das die weitere Verwendung der Information blockiert. Der Kinofilm “Der vermessene Mensch” hat dafür erneut sensibilisiert. Ethnologen und Ärzte wurden vielfach in den Dienst von Ideologien gestellt oder haben sie willentlich vorangetrieben, oftmals aus persönlichen Beweggründen. Skandale in und um Archive gehören zur Weltgeschichte, wie die geschichtliche Erkenntnis selbst. Mediale Verbreitung und Bestätigung von Klischees werden schon lange verurteilt, aber mit wenig Erfolg, wie der Deutschlandfunk Kultur selbst berichtet (Link Sendung Fazit). Die Kitas und Schulen haben ihre Hausaufgaben ebenfalls schlecht gemacht (Link). Wo ein Wille ist, ist meistens auch ein Weg, aber wenn der Wille fehlt aufgrund von Stereotypen wird sich wenig ändern.
Repair 2
Ever since the visit to the exhibition “Care, Repair, Heal” at the Martin Gropiusbau in Berlin the image of flying protheses rests with me. Repairing the human body is feasible in many fantastic ways. The inner wounds, however, are less visible and sometimes hurting even more. In recognition of the thousands of victims again in the Russian war on Ukraine’s territory and the atrocities causes by mines to injure humans, we have to assist in caring, repairing and healing. This has not changed since the Great War or the Nazi-induced mass murder and mutilations. Humanity is unable to bann such landmines despite international conventions trying to achieve this.
The strong image produced by the protheses as clouds in the sky (Kadar Attia) remind us of the lasting effects of war. Images we had associated with the mutilated soldiers and civilians of the 2nd world war, many still around us in the 60s or 70s, are coming back to Europe. Writing about the 20th century, Aurélien Bellanger described in words a similar traumatising vision of flying protheses in his story of the lonely poet and philosopher. We cannot repair history, but we can work towards reducing useless additional suffering. It is part of the absurdities of our world that technology has created masterpieces to assist us and reduce suffering, but at the same time technology is applied to create the worst suffering as well. Rather than thinking of this relationship as 2 sides of the same coin, I prefer to hope for dialectic evolution towards a better synthesis solution using enforceable international law. Yes, I still have a dream! … 
Technology
Over the 20th century technology has pushed forward in many fields. As there were huge investments needed the public campaigns to support new technology without much further reflection of potential consequences have pulled many western societies into risky technologies. Except the Club of Rome there were very few to question the naïve beliefs that technological change will make societies rich and potentially even more equal. The recent report “Climate Inequality Report 2023: Unequal Contributions to Climate Change” has debunked both of these claims. More flying across the planet, particularly short city hopping, has allowed few persons to reap the benefits of the jet-set world, but contributed to climate change in excessive quantities. This is a fact when we compare major world regions among each other as well as within each country. It has to be the wealthy countries that have to shoulder the biggest share of the costs. It has to be the wealthy that pay higher contributions for their pollution. Society has to reign in technology more than ever before. Moreover, we still have to get the income and pollution distribution organised in a better way. It is not only an implementation challenge, but the major question of the 21st century to repair the damage largely caused throughout the 20th century. 
20th Century
The 20th century has told us many lessons. History does not repeat itself, but it appears that new variants of old themes keep coming back. Slowly passing the century like a movie in decades instead of episodes, we witness socio-emotional tides. The first decade, the 00s intensify the beginning of urban planning and social revolutions. The 10s show the arousal and subsequent extinction of masses of people in trenches. The 20s were described as the Carefree Twenties. In the 30s we observed the rising tides of fascist organisations followed shortly afterwards by the disastrous 40s. After the Shoah and the World War the 50s were fabulous viewed from the U.S. and Western Europe. The 60s propagated sex, drugs and rock n’ roll spreading across continents. The wild 70s became almost inescapable through the continued rise of mass media. The 80s were depicted as the colourful 80s as the 2 previous decades had set the scene for psychedelic colours. The 1990s have been coined as the gay 90s by some. Coming out as a gay person became easier and Western societies more sensitive and open to diversity. The back cover of the recent publication by Aurélien Bellanger “Le vingtième siècle” (The 20th century) speaks of the book as “roman polyphonique virtuose”. I look back on the 20th century as “polyphone” in many respects. It would be an illusion to believe we can only keep the nice sounding harmonies without the tensions or dissonances. 