European Integration is slow and hard to come by. For others it is moving too fast (Brexit). Cultural diversity is a real asset of the EU. The economy or the economies are powerful on an international scale. Nevertheless, the diversity concerning the tolerance of fiscal deficits is still widely spread across the Member States of the EU (see image below). Some states seem to play it cool and run relatively high deficits compared to the EU averages. In OECD comparisons most of the above average fiscal deficits are closer to or even below OECD averages over time (link to pdf-file OECD, 2024). Within the EU differences in government expenditure as % of GDP or the indicator of Gross public debt according to the Maastricht Criteria range from 20% to 160% as percentage of GDP. This entails a different level of resilience to future crises. After we managed to leave the previous 3 crises (financial, Covid-19, energy) it is time to prepare for what might come next in terms of challenges. Preparing public deficits to be able to soften economic shocks is essential to be able to sustain yourself and support others. We seem to be a bit off-target to coordinate fiscal deficits across the Union. Eastern and Northern countries have suffienct scope to support expansionist fiscal policies, be it in the realm of a defence union or to address climate change. Southern Europe will find it more difficult to raise additional funds to prepare now for future challenges. Fiscal deficits might even be not only an economic phenomenon, but a cultural one as well. If we compare Japan with a deficit running at 240% with South Korea with 50% Asia is showing even larger diversity in terms of fiscal preparedness.
An economist’s stance on fiscal policy and fiscal union might depend much more on her/his region or country of origin than economists might want to believe.
Images: OECD Economic Surveys: Belgium 2024, OECD Publishing, Paris, https://doi.org/10.1787/c671124e-en. p.17. 
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. 
freight transport
The transport of goods is an important and crucial economic sector to achieve reductions in CO2 emissions. According to statistics from Eurostat Total Road Freight Transportation increased by an annual 0.6% percent between 2019 and 2023. Considering the slack during the Covid-19 economic restrictions this is a remarkable development. Most people agree that more freight on rail could allow a much better performance concerning CO2 emissions. This needs substantial investments in infrastructure and intelligent solutions for optimised and accessible freight loading points. The logistics of the last mile for delivery has found many innovative solutions with battery-supported e-vehicles. The tough issue seems to be the production of e-lorries at competitive prices to the Diesel-engines. Considering the legal obligations to take breaks to ensure sufficient concentration of lorry drivers, the battery charging infrastructure has to be planned accordingly. Ports and airports a certainly key infrastructure for freight transport as well. Industry has additional key locations with high freight frequencies and tonne-kilometres. Eurostat data show that EU-wide empty running vehicles account for about 22%. Scope for optimization is, therefore, a continuous challenge for the sector.
E-transportation is high on the agenda in the sector and production of e-lorries a big challenge. There a many positive signs that the sector has taken up the challenge as there are an estimated 100.000 € per year cost advantage of battery-driven lorries compared to traditional ones (Le Monde 2024-9-24 p.16). This is simply a long-term survival issue for the sector. Smart transport solutions add to the productivity potential of the sector in combination with electrification. 
Buzzing free
It is always a chance to be in a city that bans cars for some time from streets and bicycles and pedestrians can walk freely in the city. On September 22nd 2024 this is the case in Brussels. In addition, the public transport system allows people to buzz around the city free of charge. Of course this is an invitation to get to know areas of the city where you normally don’t take the time to visit or mix with people. The police used the time to teach children how to cycle in a city in all security and respecting basic rules despite the enthusiasm for speed or going round in circles. Unfortunately, this happens only one Sunday out of 52 in a year. It is just amazing how the feeling of safety on the road changes again. The level of noise and pollution drops to levels of the countryside. Buses and trams pass the city easily and most people get around faster than they do on other days of the year. It is a bit like a coordinated health intervention for the stressed urban survivors. This experience is a modest reminder of how nice it was in Paris during the Olympic Games 2024 when prioritizing mobility beyond cars haa been effectively implemented for several weeks.
Sufficient
What do we mean by sufficient? Sufficient of what? French philosophers currently debate the topic under the French notion of sobriété (sobriety). They give as English translation sufficiency, but the notions do not match exactly in the usual understanding of the words. In breaking with the economic rationale of more is always better, the idea of having sufficient food, room to live in or social contacts to not feel lonely, the notion of sufficiency hints towards a rethinking of our customary lifestyles. How many trousers are sufficient? Well, as with shoes there might be gender differences or more generally interpersonal differences or preferences to come to the conclusion of how many is sufficient. If we bring in the notion of sobriety in additional, we allow another social and/or ecological dimension. This may redefine what is sufficient based on judgments how much our planet can handle (emissions) and distributional judgments. The western lifestyle of the last 100 years is no role model for other countries to follow. It is urgent to rethink our growth based economic model to develop new socially viable ways of production and consumption. It seems to be a necessary condition to reconsider the notion of wellbeing and wealth from a sufficiency perspective. It is a sobering thought, isn‘t it?
Wave Length
The links between art and science are manifold and run in both directions. Artists challenge science or the outcomes of science and scientist refer to or maybe inspired by the work of artists. If artists challenge scientists by proposing an alternative theory they become subject to empirical scrunity like the unfortunate fate of the theory of colors of J.W. Goethe. The physics of colors has long been established and the theory of colors and light are best represented in science using wave lengths as the unit of measuring different colors. Hence, in this theory of colors or light the spectrum of colors runs from violet, dark blue, indigo (short wave lengths) passing yellow (medium wave length) to orange and red (longest wave lengths).
The painter Ellsworth Kelly has also challenged the science-based view of colors in “Spectrum IX” from 2014 currently part of the exhibition “Ellsworth Kelly. Formes et couleurs, 1949-2015” at the Fondation Louis Vuitton in Paris (extract of image below). As a provocation to the scientifically trained vision Spectrum IX breaks up the running from short to long wave length to take the scientific linear colors of the spectrum and split the spectrum in the middle (yellow) and join the ends upside down. Alternatively, take the spectrum and glue both ends of the color spectrum together to a circle and cut in the middle of yellow to form again a seemingly linear evolution of colors.
Now, let’s meditate in front of this new spectrum of colors and follow your senses. The challenge of the theory of colors is a provocative statement of all those imaginative potentials we exclude through a solely science-based view of colors. Art opens up virtual space and fills it sometimes with abstract reflections on colors. It is raising the question of beauty versus science, beauty in science or beauty through science. (Image: Ellsworth Kelly. Spectrum IX in exhibition Formes et couleurs, 1949-2015″)
Phase Shifting
The Berlin “Hamburger Bahnhof Nationalgalerie der Gegenwart” recently acquired “Phase Shifting Index” by Jeremy Shaw. As part of an exhibition of new acquisitions, Sam Bardaouil, the director of the museum and curator of this exhibition has installed the large-scale video and sound installation at the end of the long corridor of the “Rieckhallen”. The impressive, even overwhelming art work was created in 2020. It was first shown at the Centre Pompidou in Paris. 
The piece consists of seven large suspended screensand creates a space like in dance club, discotheque or dance studio. The visual and sound experience is allmost psychedelic. The near obsessional dancing shown on the screens represent different periods of dancing with their particular patterns of movements and choreographies. The phase of the electromagnetic waves is shifting from one screen to the other and towards the end of the performances it becomes clear, that they all follow a similar wave or rave pattern. Sublimation or ecstasy are the underlying index-like common traits. Each period or decade 50s, 60s, 70s, 80s, 90s, all had their peculiar dance and movement patterns. The video-installation is like a history of art of expression through body movement, amplified and indexed through rhythm and sound.
Electromagnetic waves can be characterized through wave shifting in various forms. This work gives us a feeling for the fascination of movement and phase shifting emotions. Don’t worry, the immersion ends after 10+ minutes and, if you like, you might read up on the physics of electromagnetic waves and phase shifting to calm you down.
Images: “Phase Shifting Index” by Jeremy Shaw, 2020, Berlin, Hamburger Bahnhof, 2024-9
Scorched earth
The Russian military strategy in Ukraine is yet another example of scorched earth. Upon retreat the space is left in a devastated state. Worst of all are the land mines that kill or mutilate even after the immediate danger has passed. The logic in the Russian aggression in Ukraine is particularly strange as the Russians were arguing this is their land and claim the people living there were mostly Russians. The retreat of Russian troops eventually will leave huge territories scorched. The destruction of energy infrastructure is also clearly targeting the population at large to make entire regions difficult to live or survive in during the approaching cold winter months. Decentralized energy provision rather than huge power plants have become a survival strategy for Ukraine and probably its neighboring countries. Sensitivity to the dangers of scorched earth is important to get priorities right for relief.
Artists sometimes show us the way ahead with bright colors, if only we were able to see or understand the signs or signals. (Image extract from Mark Bradford “Scorched Earth”, SMB Berlin, National Gallerie der Gegenwart im Hamburger Bahnhof, 2024-9)
Ukraine Chess
Strategies in Chess, sometimes, inform strategic behavior in wars. In chess there are clear definitions of 2 opponents and their material. Modern warfare has blurred both elements. Opposing parties build alliances and the material allowed or available is hotly debated as well. The war of Russia on Ukraine territory, nevertheless, resembles a variant of a chess game considering the different stages of the game. All starts with Russia choosing its opening attacks. A rather aggressive version of the opening is the King’s Gambit in which a fast attack tries to overwhelm the opponent. Ukraine, because of the surprise and lack of immediate support from neighboring countries, chose a careful defense trying to hold the lines amid a fast forward moving assault. A further restriction for Ukraine was to not use weapons from supporters on Russian territory. In chess this would mean your defense is not allowed to cross the middle line of the chessboard. For example the so-called Sicilian defense does exactly this for many moves of the opening. However, in the middle game this changes and the defense might prepare forceful attacks based on a solid defense. With 2 and 1/2 years into the war the opening has played out and we see middle game strategies take the upper hand. In chess this consist in attempts to gain material advantage, possession of strategically important positions and psychological stamina to mention a few. The middle game can drag out for a long time, especially if a balance of power persists. Even in an unbalanced situation peacemaking takes time as well. In any case, during the opening phase the “Sicilian” defense can handle a defense that is restricted to “own half” of the chessboard, but in the middle phase such a restriction is an even more severe impediment. Relaxing this imposed restriction by supporters opens up additional possibilities for the defense as well as counter strikes. (Image: Shredder Chess App White opens with Kings Gambit and Black answers with Sicilian defense)
Walking Danger
Autumn brings color into nature. This is for some the bright side of life. However, the sun sets much earlier every day and many people begin to walk to school or work and back during the dark time of the day. Unfortunately, this entails an additional danger to those walking the cities as bad light conditions cause many accidents of pedestrians. The statistics provided by Destatis (2024) for Germany show a marked increase of walking accidents from September onwards and lasting throughout winter. Equip yourself with bright colors and reflectors to avoid being a walker in danger or a walking danger. On Sunday it is pretty safe to go for a stroll. City life is less stressful and professionals in a hurry usually take a rest on that day. The conclusion is to choose your track wisely in order to feel safe on weekdays.
Innovation Painting
Innovations have fascinated painters just as much as photographers. The impressionists have painted trains and steel bridges as well as modern city life. Innovations change the atmosphere of a situation and new forms of transportation have been admired for many decades. Artists and painters have dealt with this phenomenon in various ways. Either the innovations have puzzled the normal vision of people or things or the artists hinted at curiosities or incompatibilities. Gustave Courbet has depicted in a unique style (Realism), as early as 1865, a seated woman with a paddle on something similar to a catamaran. It is maybe surprising that the modern form of stand-up paddling looks a little bit like the „podoscaphe“ painted by Courbet. Innovations in sports continue to evolve and become part of Olympic Games as well. Some disciplines make it into the Olympic canon rapidly, others never make it. The exhibition of „Artists and Sport“ gave ample opportunities to reflect on the the relationship of artists and innovations as well. (Image Musée Marmottan Monet, Paris 2024, Extrait de Gustave Courbet, Femme au Podoscaphe. 1865)
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).
International Geometry
Geometric forms sometimes serve to make international affairs more transparent or descriptive. The Weimar triangle is such a formula, which helps to show the links between states. In the journal “Le Monde” of 2024-9-13 an interview with Radoslaw Sikorski reflects the shifting side lengths and military weights within this triangle. The Polish Minister of foreign affairs points at the threats from Russia to violate the air space of Poland and the legitimacy of Poland and the Ukraine, of course, to defend its air space and territorial sovereignty. The guarantee of international law, however, is heavily dependent upon adequate international geometry beyond the Weimar triangle. The meeting with a representative of the Pentagon (US) enlarges the scope of the triangle.
Talking about the reach of missiles in defense is yet another exercise in geometry as this depends on starting and supposed, or reachable, end points. The use of GPS-signals in civilian and military applications is another example of how geometry is ruling our modern lives. Let’s embrace it, rather than shun away from the geometry behind it. (Image Exhibition room at Wiels Art Centre, Brussels 2023).
Health GDP
A report by the WHO and the World Bank (2023) on universal health coverage and financial hardship has emphasized the difficulties to reach the goals defined by the strategic development goals (SDGs) by 2030 in this policy field. Moreover, the paper by Mazzucato and Ghebreyesus (2024) invites us to reconsider the importance of health in the overall assessment of development and progress. The authors ask us to “rethink the narrow focus on growth in gross domestic product (GDP) that typically dominates economic decision making”. There is of course a long debate on the status of health, GDP or wellbeing as major policy issues or even foundations of the a state’s major objective. For economists the question has been answered for decades to favor GDP growth and more or less the other objectives can be achieved with a time delay. Recently social scientists have highlighted the overall importance of wellbeing or happiness rather than GDP as stated in some constitutions. Health as an overall objective is another challenge to the existing economic framing of societies. In a traditional economic perspective the health sector is part of the GDP increasing public and private sector of the economy with insurers, equipment and persons contributing to it. On the other hand, health enters into the distribution or consumption part of the economy. Each country strikes its own balance between production and consumption. Put simply, in form of an equation where production equals consumption, health enters on both sides of the equation in each country. On the global, scale the distribution between costs and benefits of health have not narrowed over the past. The challenge for the world population remains steep. Considering unequal population growth across continents, the situation might get worse before it hopefully gets better. We still have to continue huge efforts to increase overall health on earth for example through large scale vaccination programs. (Image The tombstone of Molière in Paris 2024)
Desertification
Since 2018 we have evidence of the progression of desertification into some Member States of the European Union. The mediterranean countries are concerned as well as regions of Bulgaria and Romania near the Black Sea. There are multiple sources of desertification. The 3 main reasons of desertification are soil erosion, loss of soil fertility and loss of natural and desirable vegetation besides wind or water erosion and salinization. We also know that man-made climate change is at the root of the past and recent problems. The statistical indicators of land degradation are collected by the European Joint Research Centre and these data show a dismal picture of land degradation in general and desertification as part of this process. A study by Ilea et al. published in Nature 2024 projects an intensification of extreme weather in the coming years. Higher temperatures will most likely enhance desertification and more frequent flooding will contribute to more soil erosion as well. It is a rather strange process that we know we are creating severe problems for some regions which endanger the roots of their existence and yet we do not act upon those undeniable facts (United Nations SDGs list). The amount and dynamics of land deterioration put the global South under severe pressure, but also the wealthy parts of the Mediterranean basin will be affected. It about time to acknowledge that we are all part of the global changes and challenges. (Image palm tree in Paris, Jardin du Luxembourg, 2024)
Heat Stress
Heat causes cardiovascular and pulmonary stress. This has been well-known for a long time. A newly published epidemiological study for Germany reiterates this finding and adds more details to the picture of who is affected most by heat stress and heat-related mortality. Old age and being female increase the heat-related deaths in Germany according to the study by Zhang et al. (2024) published in the Lancet Regional Health. Our body’s thermoregular responses to heat stress like vasodilation or hyperventilation cause additional stress to our cardiovascular and pulmonary system. Excessive sweating and dehydration, possibly increased through medication, amplify heat-related risks. The study corrects the estimates by using fine particulate matter (PM2.5), ozone (O3), and nitrogen dioxide (NO2) data on the district level in the analysis. High concentrations of PM2.5 and NO2 increase heat stress and related deaths as well. Inner cities are, therefore, not the best place to be during the hot season. Most southern European inhabitants of big cities are aware of these health hazards and act accordingly. In Germany it is much less a habit to quit inner cities during the hot days in summer, but climate change will make this a major concern. Greening inner cities is an urgent necessity, which is not just nice to have, but saves lives. (Image Berlin Bears, Berlin City Center 2023)
Painter Sociologist
In going to a gallery and exhibition of paintings from the 17th century (Gemäldegalerie Berlin) you do not really expect to attend a class of sociology. However, this is exactly what the Flemish painter Frans Hals does with his paintings of various genres of society of his time. His sociological categories are for example unmarried young persons, married couples or pensioners living in a shared home. Other social categories of interest to him are a caregiver or, more common for the time, persons from noble or wealthy families. His painting „The Regents of the old men’s Almshouse” (ca 1660), the male pensioners home is one of his last paintings when he himself was already about 80 years old. Similar to a College of students the elderly home was run by a house father and house mother who took care of the daily living. The paintings of Frans Hals covered the entire life course with a cross-section perspective of society at his time. From few of his supporters he painted even several images moving towards a kind of longitudinal perspective on a person’s life course. Certainly, with “Oude-mannenhuis” (image below) he was interested not only in individual life courses, but of the conditions, forms or images of aging at his time. He probably was one of the first to challenge the negative stereotypes of aging.
Theatre Archives
The process of creation in the realm of theatre performances has manifold facets. The French National Library (BNF) in Paris has received the archives of the „Théâtre du Rond-Point” in 2023 and honors the donation with a fascinating exhibition on the immense creativity of the author, scenarist and director Jean-Michel Ribes. (Image below) The professional diaries of Jean-Michel Ribes and the documentation through photographs from the performances and video extracts allow an intimate view into the hard work of producing theatrical performances, popular television shows and comedies. Jean-Michel Ribes took notes of all sorts and kept extensive lists of potential collaborators, actors, daily occurrences and just nice sounding phrases. From just a simple phrase heard on the streets he developed a small piece to be performed in shows. Listening to the people and enriching this with great actors in superb scenery made his popular success. The creativity seems to derive from ample note taking and coming back to them eventually.
Lost Objects
Project yourself into the future more than a hundred years from today, maybe even more than a thousand years from today. Some archaeologists will work on the planet earth to uncover the story behind the disappearance of the once very advanced species of homo erectus. They start drilling near some of the mystical sites of this civilization, the cities where mass celebrations were held called Olympic Games. These archaeologists use huge drilling machines to take samples at previous Olympic sites and uncover the remains of the thought to be modern civilizations on earth. Amongst all these samples they find all sorts of artifacts and layers left over. Plastics and metal structures appear in the samples as well as other forms of „artificializations“, transformations of earth’s principal „natural“ raw materials. The inhabitants of earth apparently lost or destroyed the planet‘s capabilities of CO2 storage and eventually became extinct. After fighting for survival on another planet the archeological expedition on earth saved this block of the remains of a doomed civilization. All this is pure science fiction, yet the specimen sample is exposed on the roof of the futuristic Fondation Louis Vuitton building near the Jardin d‘Acclimatation in Neuilly sur Seine. (Image of „Where the slaves live“ of Adrian Villar Rochas, 2014).
Olympic Criticism
The Olympic Games are, like every international organization, subject to criticism. In democracies this is part of the DNA of democracies that you can voice your criticisms openly without being threatened by persecution or arrest. The Olympic Games have since its beginning in ancient or modern times favored sport disciplines that have a link to warfare. The spectrum of disciplines has been extended recently to blur a bit this belligerent image of the Games. However even the break dance is performed in a kind of battle or competition between two adversaries. This is the reason why totalitarian states have (had) a predilection to show off their state sponsored warriors in the Olympic Games. Nazi Germany and the Berlin 1936 Games were the worst example of how the Games can get abused only to demonstrate a country’s force through athletes. Dictatorships of our times are not much different in this regard. Showing how many successful athletes (soldiers) you are able to produce is somehow an indicator of your professional training system of elite performance. Now, add to it the top performance in the Paralympic Games like Paris 2024 and you can even demonstrate how well you are able to care for and train potentially even also for mutilated warriors. Criticism of preparations of warriors and war masked through sport competitions are maybe unfair or utterly displaced here. It is, nevertheless, much better to compete on the sports-field rather than with loaded weapons. Only in retrospect, we often understand, why some nations made such enormous efforts to demonstrate a commitment to win as much as possible. With a growing enthusiasm for the Olympic Games the critical reflections rise as well.
Paralympic Happiness
It is with great pleasure that we watch the paralympic athletes in Paris compete for Olympic medals. For many the emotions of participation and being applauded by so many people in a sport arena are great experiences. Happiness derives from such great games and audiences. The accomplishments of the athletes and their supporting teams are truly outstanding. The progress towards such high skill levels is remarkable for each of them. The adaptation to what appears to be a handicap with adequate support and technique allows to surpass limitations. Well exercised skills like swimming are possible to be performed with great skill to achieve incredible performances. The Paralympic Games in Paris 2024 are a great reminder that besides the athletes some artists had to struggle with handicaps, but achieved some of the finest pieces of art. Matisse, for example, is called frequently “le peintre-du-bonheur”, the painter of happiness. In his last few years he faced a severe handicap to paint, however the pursuit of abstraction helped him to continue to create masterpieces. The rather radical pursuit of abstraction and maybe simplification are uncovered in the exhibition “Matisse: The red studio” at the “Fondation Louis Vuitton”. This marks an important step in the artistic life course of Matisse and enabled him to continue his work in later life when his health made it very difficult to pursue his artistic work. (Image at Fondation Louis Vuitton 2024-9-1 exhibition Matisse).
Olympics for All
The Paris 2024 Olympic Games and the Paralympic Games have demonstrated the extraordinary competence, professionalism and competitiveness of all athletes. The television spectators and live participants in the events have been involved to a great deal.
After all this hype around sports let us consider the probability of getting involved in physical activities and sports. Additionally, it is of interest, whether people are encouraged to continue sports, maybe at higher ages as well through these sports events like Olympia.
High level athletes are most likely to continue their sports activities. In many countries the extraordinary athletes of the Paralympics faced tough challenges to pursue their sport interests and passion.
However, the public health challenge is the big unresolved issue of how to best raise an awareness for the pleasures and benefits of sport for the masses. (bibliography by BNF “Santé et activité physique). It is not only a matter of suitable infrastructure, but also the question of sports in your neighbourhood. This issue has implications for urban and rural communities and how they organize the practice of sports in an inclusive way. Each step may be a stepping stone into sports for all ages and pathologies.
The pleasure and benefit to walk or something simple as walking to or walking after work, are part of the solution to many public health issues.
The visitors of the Paris Olympics walked a lot.
This fun experience in an enthusiastic city will encourage many to continue the simple exercise without thinking about exercise. This will do the trick. Just do it, without thinking to much about it.
Paris Trees
Preparing metropolitan cities like Paris for the heating up of the globe due to climate change is a huge task. As early as 2020 Paris started an ambitious greening program. 170.000 new trees by 2026 in a densely populated city is a steep challenge. With 114.000 trees planted by 2024 as the Olympic athletes and spectators gathered in Paris the city is right on track. The 2 parks “bois de Boulogne et bois de Vincennes” have jointly 25.000 new or renewed trees. The cemeteries, for example “Père Lachaise” has received new cooling trees as well. Most trees, however, were planted along the notoriously hot and overcrowded “périphérique” with 50.000. Only with the use of a Colbert-like planning exercise and rigorous implementation against even some initial resistance, it is possible to achieve this result and the ultimate objective. Visitors of the Olympic Games already experienced the differences during the summer of 2024. Detailed planning by means of a “Bilan par arrondissement” facilitates monitoring of progress. Publishing the information is part of the communication strategy to keep citizens informed and engaged in this silent transformation for the benefit of inhabitants and visitors. (Image City of Paris webpage 2024)
Burden of Disease
For the planning of health and care systems it is important to measure the so-called burden of disease within societies or related to specific diseases or social groups. A large-scale analysis of several longitudinal data bases of the populations 50 years of age and older shows that we have underestimated the burden of disease to societies of psychiatric disorders, like depression, in most societies.
A meta-study and overview of previous studies showed already that depression (age 60+) is more common in lower-income countries (between 25 and 33% of 60+population age group). High income countries, studied by Wang et al. 2024 in The Lancet Healthy Longevity, have rates of depression well below these levels, but a link to socioeconomic status, inactivity and loneliness is still evidenced. A five-year follow-up of persons aged 50+ years shows that the probability to develop a depression (hazard rate) is twice as high for persons with low socioeconomic status, who were socially
inactive and lonely than for socially active, high socioeconomic status and did not feel lonely at the beginning of measurement. The conclusion of the research highlights the need to develop and implement integrated and simultaneous initiatives to addressed the growing burden of disease related to depression in older persons. (Image, Jules Desbois, “Misery” 1887-89, Musée Rodin, Paris) 
Stress Ageing
The relationship between stress and aging is a complex one. Stress is known to accelerate aging and aging caused different reactions to stress. In short causality does not run only in one direction. Additionally new research published in Nature Medicine 2024 demonstrates that different genetic preconditions determine different response patterns to stress and subsequent brain aging. From anecdotal experience we are well aware of different persons coping very differently with stressful situations. Mastering of various coping mechanisms may attenuate the stress experience but the impact on preserving our brain remains an open question. Various other forms of lifestyle conditions like drugs and smoking cause specific forms of brain damage as well. 2 separate forms of dementia can be identified from brain MRI-images as well. The brain is no longer the black box of missing information about what is going on in humans. Put to the right purposes this is good news. (Image: break dance shooting Paris St Denis 2024)
Less is better
There is an interesting psychological phenomenon which is called the less-is-better effect. First research on this phenomenon dates back to marketing research more than 25 years ago. The Olympic games have even a mention on the English Wikipedia page on this less-is-better effect. The winner of a bronze medal at the Olympics might feel more happy than the winner of a silver medal. Why? Viewed as separate events winning a bronze medal makes can make you so much happier, because you are among the famous group of medallists in your discipline or with your team, whereas as a silver medallist you might be so disappointed that you did not reach the gold medal that this overrides the joy to come 2nd instead of 3rd. Several interviews of athletes during the Paris 2024 Games gave evidence of the pertinence of this less-is-better effect.
There are other forms of application of this rationale as well. A more sociological perspective highlights the potential change of category from less is more to the less-is-better rationale. One variable assessed in less and more frequency or value maybe better or worse in another category. Less pollution leads to better health. It is like a shift from a quantitative variable to a qualitative assessment of the same situation. Olympic Games are full of useful lessons from a social science point of view. Although, more can be worse. 
Sports Game
Each museum in Paris gave its view on sports. There is hardly any perspective that is not represented. The link of sports to soldiers in ancient Greece or the gladiators in the Roman empire are prime examples of this. The Museum Quai Branly added an ethnographic dimension to this view showing sports traditions in African, Asian and indigenous American peoples. The bookshop of the museum added anthropological views and critical literature to the phenomenon of sport. A provocative example of critical cultural literature has in the book title the question: Is sport a game? We all have our opinions on this topic. The idea that sports remains a game is a rather naive one. Most people probably would argue that in view of the high ticket prices, sport has primarily become big business. Listings and comparisons of medals between nations have financial implications in the aftermath for disciplines and athletes. The upcoming Paralympics in Paris reframe the above question. Sports at high levels is a very serious game.
Paris Experiment
The Olympic Games 2024 were prepared years ago. Already the application procedures to prepare “un dossier” has to bring in lots of ideas and imagination what is desirable and feasible. Paris opted for a celebration of sustainability in a city proud of its medieval heritage and the Haussmann tradition of radical transformations of a city with large boulevards and representative buildings. From the “Arc de Triomphe” the major axes of communication between “arrondissements” become visible. 100 years ago the city had already been transformed according to this master plan. At that time sanitation of a city meant different things than today. The invasion of inner cities by Diesel-driven cars made life unhealthy again. Now, the Olympics gave reasons to restrict cars and lorries passing the inner city and the great boulevards. More tourists need more space and shall keep a much better memory of how pleasant Paris was during the Olympic Games. This could be a game changer for urban development in general. The proportion of pedestrians versus cars has to be shifted in favor of the walking population for many reasons. Tourists will flock to the city, if the overall and shopping experiences are great. Back to the future sounds crazy, but it has an interesting flavor to it for urban renewal and residents as well. (Image Paris 2024-8, b/w color filter applied, enlarge to see vasque)
Digital Museum
Paris has lots of museums to visit. At times, this can lead to a kind of mental overload. The ” Musée Marmottan Monet, in Paris allows to take home a digital and printed copy of your preferred, your own curated collection of images from the museum. This is a great learning experience. You scan the number of the item you want to include and a specialized application retrieves the image of the painting or object from their database into the App. After the visit you take a break in the café in the garden and sort your collection and if you like have it printed within a couple of minutes after you paid for the print or digital version. Upon special request I was told that I am allowed to share the link to the small booklet even on the web (Link to pdf below).
Since the visit to the Musée Marmottan Monet we have come back to the digital and printed versions several times and reading of accompanying texts and perfect quotations of origin make learning about art a fun experience. Going back to lived experiences makes more lasting impressions on our memories. Knowledge coupled with emotions is a powerful way to memorize. Sharing the experience with other persons like the readers of this blog is an additional advantage. Attentive readers of the blog entries will find references to many of the themes dealt with over the years in this series of blog entries. Such topics are: gender and art, technology and society, reflections on time, life courses, inequality, art history, funding of artists, lifelong learning or beauty.
(Booklet below in German LINK-pdf of 6MB. The app allows many language versions. You can produce those yourself from you collection within the App) 
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.
