Category: History

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Archi Octagon

The architecture we see around us has lots of interesting mathematical features. Some are the basis for more complicated calculations. The octagon shape is not that common, but with some formulas the calculations become easier and construction in the real world is more feasible. Well worth to dig a bit deeper into this shape. The geometry of angles and circumference follows rules that have been laid out a long time ago. The webpages explaining this are manifold and it is a project of its own kind to compare them and recommend the best ones. My current favorite is: mathmonks. A reasonable choice is in most cases also wikipedia, the long running amazing knowledge project also for the octagon.

Image: Berlin Europa Center 2025.

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Archi Geometry

Architecture has an obvious and visible link with geometry. Clear lines, rectangular or triangular shapes have dominated for centuries since the Greek temples. Geometry was a discipline that has attracted many scholars and particularly architects. Nowadays the shapes are much more diversified and sometimes complex. The calculation of surfaces, curved lines and shapes have become an issue of more complicated mathematics. Volumes of irregular shapes are a challenge for most people to calculate and heating or cooling sich buildings adds considerable complexity. It is, however, rather relaxing and fascinating to look at the marvels of modern shapes in architecture. Technology and material science have allowed us spectacular progress and designs in recent years. Paris offers a splendid perspective on such developments. 

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Health Systems

Comparing health systems across the EU can be complex at times. However, there seems to be a consensus that the Irish health system is an oddity within the European health systems. On the one hand Ireland is a rather wealthy country in terms of GDP, but the primary care system excludes a high percentage of people from access to it. The scientific journal “The Lancet Regional Health” published a paper and comment on this rather unique exception to the rule to offer a universal health care system to its citizens. The controversy is about the coverage of costs of a visit to a general practitioner. More and probably earlier visits to a GP reduce the (over)burdening of
hospitals later during the life course. Prevention helps a great deal to lower overall costs of a health system.
The roots of the Irish health system have been built upon “subsidiarity”, which means that the public support system should only step in, if the individuals or families are unable to cover costs by themselves. Poor households had to apply for a card giving them access to medical care free of charge. Building hospitals was the next challenge and local communities managed to raise funds in support of such additional structures. In 2025 it can be very costly to enlarge the coverage to a universal access to primary care and the challenge to attract sufficient numbers of general practitioners is a very European one. In this respect Ireland is just like any other European country again.
The question of how to best achieve a universal health care system remains an important one. Apparently, you can be rather “health poor” in an otherwise “economically rich” country.

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Marx Home

The home of an influential philosopher, economist and political scientist is not easily presented like a home of a musician, a composer or an author. However, the home of Karl Marx in Trier on the Moselle river succeeds to present the biographical links of growing up in a historic city, the bourgeois upbringing of the young Marx and his formation as an independent and even revolutionary thinker of the economy and society. In 2025 the home is a museum supported by the Friedrich Ebert Foudation with a great online guide and access to additional scientific material. For authors like Karl Marx it is always of interest to follow not only the origin and evolution of the thought process, but also the shifts in the reception of his writings by subsequent generations. This part of the exhibition and an audio guide (downloadable as App).

In 2025 with an apparently ruthless capitalism at work in the biggest economy of the globe, the reminder that the economy is best to be understood as a political economy, which focuses on self-interest and profitable business deals, we find in Karl Marx still a worthwhile reminder of economic development even in the 21st century. The note-taking and studies in Exile in London are well documented in the tiny home and museum. Studying the misery of exploitation in supply chains and international commerce remains a topic of continuing interest as well. 

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Liszt home

In Budapest we can visit one of the longer living places of Franz Liszt or Ferenc Liszt as some Hungarians would insist to call him. The Beethoven trained Carl Czerny offered piano and music classes free of charge to the young Franz Liszt in Vienna at the age of 11. In the biography by Klára Hamburger she describes the Paris years of Liszt from 1823 until 1839 as the most important ones for the pianist and particularly for his later compositions. Born in Hungary, the son of 2 Austrian parents he was trained in Paris by amongst others the Czech professor of the Conservatoire de Paris Antonin Reicha just like Chopin, Flotow or Offenbach. Writing an opera was the “must do” for a composer who aimed for the highest possible career at the time. In a letter to George Sand, Liszt (published 1937) complained already about the social status of musicians in society as servants to the higher ranks of society. Similar to Ravel many years later Liszt was rejected as official scholar by the Conservatoire de Musique and his wish to marry a daughter of noble decent was rejected early in his career. Such experiences probably contributed to his leaning towards the romantic form of expressions in music during most of his compositions. Literature, paintings of the French romantic period and the traveling artist “voyages et pèlerinages” became influential in his creative process. The competition between composers must have been fierce at the time and despite ample opportunities to perform in public and private venues making a living from music wasn’t always easy at the beginning. More than 100 years after his death his compositions are still a challenge for all pianists and the Hungarian Rhapsodies probably his greatest homage to his early childhood.

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Tchaikovsky home

During the time before the “Zeitenwende” it was easy to visit the home of the composer Pyotr Ilyich Tchaikovsky in St. Petersburg. Therefore, we refer to our memory of the visit and the already 10 years ago restrained liking and appreciation of the Russian officials for the aristocratic composer, even accused to not be sufficiently Russian in his music compared other Russian composers. The composer had diverse love affairs, which were also not conform to official doctrines. The world wide success of his compositions, mostly known for his ballet music, remains popular in the 21st century. Similar to Beethoven, the biography by Malte Korff (Tschaikowsky, in German), highlights the final symphony as his masterpiece. The seems to be a reason to study “the last works” of composers specifically. The mature compositions appear to reflect on previous work and build or comment on previous work. The 6. symphony “Pathétique” was completed in his last year of his life, only at age 53. The final IV-th piece of it is entitled “Adagio lamentoso” and ends in very calm tempo and almost silence like a withering away heart beat. To my surprise I found a similarly very quiet ending in one of his early piano composition when he was only 28 years old “Romance Opus 5, Andante cantabile”. This early piece also ended “più lento” and from pp to ppp. (compare extract of image of notes below).

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Sovereignty of People

In France the judiciary has made an influential decision to ban a politician from the possibility to be elected after conviction of fraud. This is just what is to be expected from the 3rd power in the organization of a democratic state. It is surprising that there was a political debate about a person convicted for a crime to be eligible for public office. Several eminent scholars published columns in major newspapers to support the judicial decision. Pierre Rosanvallon focused both on the justification of the verdict and the constitutional role attributed to the judiciary to operate as a kind of memory of the “general will of the people”, the ultimate sovereign. In the struggle of power within a state the judiciary defends individual rights as well as moderates between the executive and the legislative branch. In the theory of democracy this creates a double bind situation in which the individual has a right to be defended against the state and individuals who ask for judgment of cases one against another one. Eric Halphen has also argued in favor of the often neglected role of the judiciary to stand up for the “general interest”, a notion which is not easy to define without historical references in each country and its historical trajectory of democracy. The short debate about the role of the judiciary has strengthened the defensive capacity of the French democracy. Other, even mature democracies may turn their eyes on the decision of the judges involved not to shun away from unpopular decisions. The independence of the judiciary is part of the sovereignty of the people and non-negotiable part of it.

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Housing renovation

The huge amount of buildings that need renovation is a task for each generation. New constructions are relatively easy to realize even to the best available standards. Particularly energy standards asking nowadays for serious isolation of buildings are easy starting from scratch. Energetic renovations of existing buildings are much more challenging and have to take into account the various stages or predilections of previous generations. Repurposing of buildings raise additional questions like transforming a family home into a representative office building. New technologies like fiberglass instead of copper cables or copper or plastic tubes instead of other hazardous materials cause additional costs and worries. The use of asbestos for interiors of previous generations has created the greatest liability for existing buildings. Technological choices of the past and also of the present (heat pump or not) have lasting consequences and sometimes even health effects. To cherish old buildings and styles is a mixed blessing as the renovation of housing confronts home renovators with more tricky challenges than building a new home. Incremental repairs might do the trick rather than all in one go renovation, however, you might enter into a situation when renovations are always on your mind. Not only the times are a changing, but homes are a changing, too.

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Private Intimacy

Intimacy has been reserved for private affairs for centuries. Although in the medieval ages formally the right of so-called noble men could be very far-reaching into intimacy of families when the permission to marry was quite restrictive. The private intimacy is the central theme of the Paris exhibition at MAD (Link) « Private Lives ». The organization into 14 almost private rooms around a larger center piece on design leads us through the major topics of intimacy. Maybe as a surprise to some, the exhibition starts with the major actors of change related to privacy and intimacy, i. e. women. Opening up enclosures gave women more room for intimacy and at the same time it made intimacy a conscious choice and decision. “A room of one’s own” is an important step in personal development of children particularly with respect to one’s intimate life. Restrooms are another issue of intimacy, just consider recent adaptations tor m/f/d people. A whole set of accessories are on display which previously were intimate products or even secrets prepared for public viewing. Of course odors are part of the experience with a test space of noble perfumes. The various manifestations of sexuality has brought about a growing number of pleasure objects, which might also be criticized as a growing commodification of intimacy as well. The connected bedroom and the risk of surveillance are raised to warn on overexposure on social networks. Intimacy in prisons or community shelters closes the exhibition before the final highlight the room on “conversations with oneself”. A whole literary form of keeping an intimate journal has arisen from the conversations not intended to be shared with others, at least not during one’s lifetime. After a person’s death for some persons of public interest even their private intimate journals will be published shifting the balance between the private and public parts of intimacy. (Image below from exhibition, photo bottom left, Matisse painting on wall while in bed in old age). 

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Intimate change

Society changes and with it so does intimacy. The major changes pass through the behavioral changes of persons and sooner or later the whole society adopts such changes as the new normal. Trends of individualization have moved over centuries as the exhibition in the Museum of decorative art (MAD) in Paris demonstrates. At the same time the changed individual approaches to intimacy have become more widely spread quickly over time. Social media have accelerated such new trends again. Social class is yet another intervening variable in this context which created different speeds of adjustment as well as sustaining differences in kind. 

Religious beliefs and practices have made claims about how individuals should handle intimate relationships and affairs. Legal issues are defined by each society to guide moral practices as well. Hence, the sociology of intimacy is a huge topic and comparing societies an interesting topic. The development of intimacy over a person’s life course, however, is given little attention due to a lack of adequate longitudinal data. From the exhibition we are encouraged to think about the relationship of hygiene and intimacy. Bathrooms accompany us throughout our lives and privacy was originally a bourgeois concept. Over the life course we move from dependency to independence and maybe dependency again in very old age. The images (below) from the MAD exhibition range from basics of bath tubs to a painting of Edgar Degas in the background. Instagramer or YouTuber share lots of images and stylized arrangements of bathrooms on social media. It seems that intimacy is moving further into the public domain. 

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Aufklärung Enlightenment

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

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Apocalypse Depicted

At the beginning of the 21st century we have a renewed interest in depictions of the Apocalypse. “L’Apocalisse di Giovanni” has been illustrated in various Christian monasteries and some traveled quite a bit. The version of the Apocalypse (Link) which was attributed to Cambrai is a copy of the older original version found in the City library of Trèves, which dates back to the year of about 825. A flemish version of the 16th century is to be found at the BNF in Paris. Throughout the centuries the “Apocalypsis”has been reworked. The version of Trèves has the “carolingish” depiction characteristized by a presentation of image on one page and text on another page. Nowadays we are used to futuristic images and have known even worse experiences of apocalyptic events (Nazi terror). Earth quakes or man-made climate change with heating of the planet, storms, draughts and floods testify for the renewed interest in the Apocalypse. Other man-made technological innovations like rockets. atomic bombs, chemical and biological weapons overshadow even the “natural” ones. The potential of AI to cause destruction is not fully assessed until today. Swarms of drones guided by AI might reach apocalyptic levels as well. We just remind ourselves of the bombing of walls of a water reservoir by Russia in Ukraine. The Apocalypse will remain the original example of a horror story and our strange fascination for such texts, images or movies is likely to stay. (Image: extract of anonymous 1st quarter of 9th century. Trier Stadtbibliothek, Schatzkammer. Wikipedia public domain).

Apocalypse
Screenshot
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Law and Witches

Medical and chemical authorities have been questioned for many centuries. As far back as Friedrich Spee (1591-1635) in the early 17th century there were even among the clergy men with enlightened views on what might be helpful ways to assist people on their journey to better health or simply pain relief. This did include many unhelpful or detrimental methods as well. Scientific rigor was not well established at that time, which opened up many doors for alternative diagnosis and treatment. From a historical and sociological perspective the closing procedures of professional organizations are interesting as well as opposition to them. Early moderators between hardliner positions are rare at the times of forceful and fierce competition between opinions and doctrines that characterized medieval history. In the absence of an independent judiciary earlier moderation could be influential in specific instances. A testimony for can be found in a documentation of the biography of Friedrich Spee and the society that promotes the memory of such exemplary behavior.

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Art from India

Indian music, art and performances have had a difficult time in traditional western cultures. Based on the historical collections and donations in the BNF, this WEIRD bias is challenged a bit. The focus on performances and art from India of centuries old traditions of high standards could have been a major source of inspiration to wider audiences already. The narrative language of for example dance as Bharatanatyam is a sophisticated ritual of expression. It appears to us like a spiritual performance which reaches our emotions much like our modern ways of expressing and performing. It seems amazing how the western world has omitted looking and listening to other continents. 

Of course, archers have played an important role in Indian culture as well. Such depictions have been common across cultures in previous times. These images can reflect the shared human heritage and this with a global perspective on art history. Flora Willson (2024 in Die Musikforschung) refers to this Indian cultural heritage in her book review and why Italian Opera never really became popular in India. 

(Image BNF, Paris Richelieu in Rotonde 2025).

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Great Petit Palais

The Petit Palais in Paris was built together with the Grand Palais for the World Exhibition in 1900. The great architecture of both buildings is complemented by great interiors. The Petit Palais has also been the home of donations to, as well as commissions by, the city of Paris since 1870. This means that a sizable collection of sculptures and paintings has accumulated since then. In spring 2025 the visit of these collections is free of charge and gives honor to the donors and artists exhibited. Over time the collections spread more than 2500 years of art history similar to the exhibition at the BNF gallery Mansard. In the 21st century the exhibition of a piece of art, which stems from the North of Syria reminds us that art is a treasure that can last even if the civilization has been lost or at interrupted for many centuries. This is an important aspect of taking a long term perspective on international politics and history. The breadth of the collection allows a stroll through art history in a splendid setting. Romanticism and impressionism receive a little bit of attention, but the architecture of the Petit Palais invites you to delve into lesser known territory. This, probably is the specific merit of the joint presentation of otherwise necessarily eclectic collections of donors across centuries.

(Image: Anse de chaudron Syrie du Nord 700 years before our time, Petit Palais Paris).

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Louvre empty

The Louvre in Paris is never empty. The paintings and splendid statues are there 24/24 and 7/7. If you want a quiet moment in front of the sculptures you have to choose a time beyond the normal visiting hours. In fact even a view from outside without queues is a pleasure and gives the impression of a huge empty space with just a few pieces of art. The lights add a nice touch to this special evening atmosphere. It is worth trying to catch a glimpse of the size of the building and the sculptures. Well, we should keep this a secret rather than spread the knowledge about such “Paris moments” in otherwise busy times and crowded places.

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Expo Disco

The combination of music and dance is a powerful, captivating experience. From folk dance traditions across the globe to ceremonial performances. In the past this combination has often related ro religious practices. Later manifestations include classical ballet, modern dance and disco music and dancing. History is full of examples that have been turned into mass culture. 

Rock on festivals and rap in clubs or hip hop outside have complemented this experience over the last few years. Each time the combination made the popular difference. Therefore the Disco exhibition in Paris just next to the Conservatoire de musique et de dance de Paris and in the building of the Paris Philharmonic is an appreciation and respect to the disco culture, popular mostly during the 70s and 80s. From a sociological perspective the throve by minorities for recognition of their cultural practices and diversity has been a driving force. Andrew Diamond has coined the expression of „disco at the intersection of minorities struggles“ (p.70 exhibition catalog). At the origin of the disco movement, there was the aftermath of the 60s power struggles. Black, women, gay and student protests asked for „all power to the people“. Music and dance were forming identities. Posing and showing off became part of disco. People created and lived their own utopia in glamorous lighting.

Image: Exhibition shop Paris Philharmonic 2025.

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Präludium Prélude

Learners of how to play the piano are likely to pass the composition of J. S. Bach entitled Präludium in German and Prélude in French. Maybe that influences the approach to the piece of music. The title sounds different in each language. It is interesting to follow the Präludium Prélude throughout the history of composition. The pianist Jan Lisiecki has just recorded and released a disc with Deutsche Grammophon following the historic evolution of this genre. The rather easy-going beginnings by Bach (see below for extract of first motive) have turned out to become rather complex preludes with subsequent composers. We may ask ourselves at this occasion: a prelude to what? Your own associations are welcome. In international politics we can observe strategic movements of countries and their military equipment as a prelude of war, but also of peace. Small aggressions may turn into wars. In philosophy Nietzsche praised the dawn (Morgenröte) and focused a lot on new beginnings. Composers might be the best forecasters of what is to come in the following years. Certainly the preludes have foreshadowed some of their later work. Nowadays, many LLMS in AI build on algorithms that predict what is the next word to write or task to do. Even in composition AI is moving ahead fast. Hence, we e are likely to study preludes much more for several reasons now.  

(Image: extract of first motive from J. S. Bach Präludium Nr 1)

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ravel up Ravel

To ravel up is a contranym. It can take a specific meaning and the opposite at the same time. Therefore, it is a perfect term to describe the composer, pianist and conductor Maurice Ravel. Born in 1875, he lived through great deceptions as aspiring pianist at the Conservatoire de Paris, but achieved glory through his famous compositions like the “Boléro” created for a ballet performance at the Paris Opera.
Previously, he had written several remarkable piano pieces, which were recently honored by the piano music magazine “Pianostreet”.  In an article with links to 5 performances of Ravel’s piano compositions you can ravel up in the emotional world or cosmos of Ravel. You may also unravel his compositional style marked in some of his most famous pieces with the variations of a single theme or motive. The “Sonatine” completed in 1907 might be considered as a precursor of later work (Boléro) as he refined his composition techniques to build, for example, on a single motive and develop a whole piece reworking and with reappearing incidences of the same motive.
Ravel himself appears as contranym, as he combined modern musical influences, like from jazz or innovative structures of musical compositions with the classical forms of composition. Listening to Maurice Ravel allows to better understand the transition from classical music to modern worlds of music. Thanks to “Pianostreet” we can follow these paths. For a biographical account the splendid movie “Boléro” takes you on an unraveling musical journey of Ravel.
(Image: Repainted piano in Berlin shopping center 2024)

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Known Unknown

Many musicians and poets remain unknown to larger audiences. “A complete unknown“, young singer, musician and songwriter Bob Dylan has reached fame and fortune with his poetry and popular songs that marked a whole generation. He became the best known unknown of country music in the USA who found sympathy for his expression of protest across the world. „How many times must the canonballs fly, before …“. At the time of renewed militarization of the Western states to defend our way of life, the protest song is oriented towards Russia to stop its war in Ukraine.
The poster in Berlin to advertise the biographical movie on a „Litfaßsäule“ (round sign posting column) dating back to the 1920s in Berlin brings us back into the historical state of mind of crucial crossroads in history. Retreat from war, preventing war and aggression remain topics for us today as well. Peace might be the happy time in between wars marking history.
Berlin is a great place to walk through more than a century of war and aftermath. Rebuilding takes decades and is part of the Berlin state of mind. as well as a sign „to overcome“ conflicts.

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Beyond ART

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

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Democracy ART

The European Parliament co-sponsored a remarkable art exhibition in 2023 entitled „Art in Democracy“ The catalogue of the exhibition offers insights into the many preconditions of art. A democratic environment constitutes a non-negligible precondition for most of the works of art. Artists thrive within democracies. Many artists flee authoritarian regimes as their work environments rely on a real freedom of expression irrespective of the will and belief of ruling politicians.
Artists who do not flee in time for whatever reasons have suffered tremendously under Nazi terror in Germany. Authoritarian leaders don’t respect the various forms of expression by artists. Europe and the European Union provide safe havens for many artists to continue their careers in art. This has become a real value of our way of life. Many countries envy us in this respect. We take this for granted in the EU, but 70% of the world population endures authoritarian control. A reminder of this, from time to time, justifies a lot of expenses to support art and artists even beyond our borders.

The romantic setting of the image below is set against the surrealist open window (of opportunities) in an almost Magritte-style dreamland.
(Image: Rafal Olbinski, La Pologne dans l’UE, created for the occasion of adhesion to the EU)

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Berlin Mind

For a long time now, I have been asking myself the question: What is like to be in a „Berlin state of mind“. The exhibition of the 2 photographers of the Berlin Landesarchiv as part of the Berlin activities of the EMOP contributed to understanding and more precise description of the „Berlin state of mind“. As we shall celebrate in 2025 the 80th anniversary of the liberation of Europe, Germany and Berlin from Nazi rule and terror, we have seen endless reconstruction and reshaping of the city. The ever growing need for housing and space-grabbing office buildings bring about a permanent feeling of change, of becoming, of under construction. The years of the separated city as well as the building and taking down of the Berlin wall created many new opportunities for developers of the city and its structure of quarters, arrondisements or „Bezirke“ and „Kieze“ within the districts. 

Due to the continuous urban renewal also of basic infrastructure Berliners have the impression that there is construction work all around us all the time. With the abundant construction works come the construction fences. They too have changed. Some fences show digital prints of virtual worlds of the Berlin living in some future time. However, the promises often mask the reality that fences will be replaced by concrete walls and inaccessible buildings for most people of the neighborhood as gated business space or city blocks grab the space to form and reform the metropolitan landscape. The construction fences themselves become the contested areas where different strata of society interact or intersect. The „Berlin state of mind“ is one of becoming. Longing to become something else, something aware of the overwhelming historical duties, but still rising from the ashes. The experience to see a wall come down between cold war enemies liberates a belief that we can overcome frontiers. However, this in-between state of mind has brought us multiple fences of all sorts. Construction fences are only the most visible ones that surround the many spaces under construction. In the imagery of Berliners and visitors beyond the wall, fences are continuously on our minds in the „Berlin state of mind“.

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More BRICS

The move towards a multipolar world order is in full swing. With the USA retreating from a primordial international role discarding UN institutions and the defense of major elements in the fight for individual freedom, the diplomatic order of the last 80 years has changed. The liberation of the concentration camps in Germany and the 80 years of the end of the 2nd World War on 1945-5-9 had forged an alliance in which the common enemy was defeated and the the next major confrontation in Europe or on the globe had to be warded against. 

The evolution of peace in Europe has been marked by the Cold War and a bipolar world order which confronted the USA and Russia at various places. The rollback of Russia has seen its high time with the Northern and Eastern extension of the EU and NATO. This goal of US strategic interests has been largely accomplished. 

In the shadow of this bipolar relationship the BRICS have moved towards greater economic power and therefore influence in the international arena. Economic data on the biggest economies in the world over the last years show the rise of the BRICS, bit mainly China and India. Their population sizes create enormous and largely shut off internal markets. All these developments create new challenges to the previously relatively stable world order. Technological advances have been narrowing more rapidly than before since the access to the best available knowledge spreads fast and more equally across the globe through the internet. 

The ugly face pf imperialism is returning front stage and attempts to change the previous versions of imperialism into a new hegemonic world oder. Updated views of economic power and influence zones let us look with a rational perspective on the new power play. Due to the containment of Russian influence, the USA has China as the major power to confront, a major shift as of the 2020s. The China-driven Silk road project with strategic landing points across the globe has „trumped“ American efforts to align BRICS to human rights values over the last decades. European diplomacy will have to recognize that we entered another phase of „Realpolitik“ due to major economic shifts over several decades. (Image: extract from Max Klinger, The walkers, ambush, 1878 in Berlin SPK).

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Wave and Particle

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

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Quantification

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

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Antique Drama

Modern drama and performances have their roots in antique drama. This is evident in literature from the time and some rare artefacts that have survived until today. Masks and statues give an amazing impression of the high standards already attained more than 2.000 years ago.
Many performances have been linked to mystical rituals and religious ceremonies, but beyond those instances there has also been a depiction and interpretation of for example the Greek mythology. Dionysos inspired many artists and people of that time and philosophers equally found inspiration in performances and the representations in temples, arenas and market places. The treasures of the BNF in Paris, galerie Mazarin and rooms next to it like “la salle des colonnes” (Image below), allow to travel back in time into an antique setting in the room of columns.
Taking the world as horizon is the title of the rotating exhibition from the treasures of the BNF. The beginnings of philosophy and major milestones in arts and mysticism across the world figure in this exhibition. In the spacious setting it feels like travelling back in time for a while, just to build on these foundations.

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Hugo intergenerational

Well, this entry is not about Hugo Boss, whose name is probably known to more people worldwide nowadays than the French poet and writer Victor Hugo. The latter Hugo, however, is likely to be known to more generations to come than the former one. In his 19 years of exile with his family he had the unique chance to get to know his grand children a bit closer, which was rather unusual for the late 19th century. The romantic poet was charmed to an extent that he could help it, but to express himself in a longer poem. „L‘art d’être grand-père“ (The art of being grandfather)“. Victor Hugo experienced the death of own children and his wife before and his grandchildren surely gave him reason to believe in a more joyful tomorrow. Comments on this poem mention the idealised vision of the romantic regard on children and even more so on his own grandchildren. « Leur front tourné vers nous nous éclaire… … Ils trébuchent, encore ivre du paradis. » 

We forget all earthly quarrels just listening to the soothing sound like children’s rhymes. Hugo is a master of all literary classes and he ensured that his intergenerational legacy would be part of this.  (Image: Maison Victor Hugo, Paris, writing desk ro stand in front of)

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Nazis bipolar

Thanks to the exhibition « How Nazis photographed their crimes in Auschwitz 1944 » in the Mémorial(Link) of the Shoa in Paris, the biased photographer’s view of what happened in Auschwitz is evident. The inhuman, factory-like organization of these concentration camps were constructed and managed with the primary aim of humiliation of Jewish people and other inmates. Careful reading and interpretation of these images is necessary to spot the sometimes small signs of resistance to be taken on photo by a Nazi photographer.

The revelation of a kind of bipolar disorder of the Nazi murderers shows up in the seemingly normal family meal of officers in their nearby homes. You might be surprised that many of these family members even decades later report on normal and comfortable lives despite their pitiless exercise of mass killings by the Nazi officials and their hired staff. Bipolar disorder is maybe the result of such split personalities, although we already have ample evidence that doing drugs was quite common at the time as well.

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Shoa Memorial

In the neighborhood of the Paris City Town Hall you find the Mémorial de la Shoa. There is a constant flux of visitors and pupils with their teachers passing through the rooms. They all continue to be really moved by the shocking images and their efforts to try to understand the full extent of the Shoa and the terrible effects it had even on survivors of the concentration camps. The continuation of the memory of the memories of those survivors by young people is one of the strong points of this exhibition. The transmission of memories finds many new ambassadors against the tendency to forget or downplay the horrors committed by the Nazis. 

Of course it is overwhelming as an experience, but it all the more necessary to keep memories alive and guard against each tendency of denial. In the age of fake news and historical deep fakes, it will be all the more important to immunize people against any attempts of manipulation of historic truths. The availability of the information online and through youtube-videos is an indispensable next step in the preservation and dissemination of the documentaries. The Mémorial of the Shoa in Paris is an essential part of this commemoration as 76.000 Jewish persons were deported to concentration camps from France as well.(Image: Mémorial de la Shoa, Paris 2025)