Knowledge and knowhow are a pair of notions that have strong links between each other. It is a challenge to see 2 knowledge systems, knowledges, to co-exist sometimes for a very long time. Medicine is a good example. The traditional Chinese medicine continues to exist in parallel to the western style science based medicine. It remains a challenge to analyse the effectiveness, efficiency and equality each system can provide. In terms of public health the border between knowledge and knowhow becomes more blurred. The knowledge about diseases needs to be transferred into knowhow of how to prevent the disease to the population at large. This is a steep challenge as the persistence of alcohol abuse, smoking habits and other drugs abuses show on a global scale. Knowledge alone on the negative consequences is far from enough to prevent abuse. The thin and blurred line between use and abuse of pharmaceutical products equally challenges our traditional views on knowledge and knowhow. In a knowledge graph knowledge would figure, for example, in the core and knowhow as a satellite on the periphery. However, despite the strong link between these 2 notions, knowhow has a lot of additional links to topics like health or yin and yang. Knowhow has a basic link also to notions like memory (techniques) or even war (equipment). The more abstract notion of knowledge, “le savoir”, has been seen for a long time superior to the less abstract notion of knowhow, “savoir faire”. Polymaths have been identified for touching on several fields of knowledge with little concern for the practical side of things, despite the fact that Leonardo da Vinci combined many fields of science of his time to improve technology of his time including visions for the future. The double bind link exists in the recursive element of a link between 2 notions. Rather than denying its existence we have a lot to do to incorporate the more complicated links into our scientific knowledge and the more practical knowhow. 
Flotow Potpourri
Über das musikalische Thema der Flotow Oper „Martha“ gibt es der heutigen Popmusik vergleichbar spätere verkürzte Versionen. Zu einiger Beliebtheit ist das Potpourri zu den Motiven von Martha gekommen. Kleineres Orchester und ein melodisches vereinfachtes Arrangement konnten für kurze Konzertabende verwandt werden. Der Komponist und Arrangeur Spasny Op. 65 hat Flotows Melodien aus „Martha“ publiziert (desgleichen von Wagner und Verdi). Die Kopie in der KBR Bruxelles ist ein kompletter Orchestersatz datiert von 1886 und 28.7.1894. Aufgeführt wurde das Potpourri im Kursaal von Ostende, wahrscheinlich für die Sommergäste in der Hafenstadt mit naheliegenden Erholungsgebieten und Küstenorten. Neben einigen schönen handschriftlichen Kopien für Violine (5 Seiten) oder Pauken (1 Seite, viele Pausentakte) ist die Partitur für die 1. Violino als „Conducteur“ (assisté?) ausgewiesen und sehr abgegriffen. Interessant sind die Anmerkungen und Einfügungen, wahrscheinlich zu wichtigen Parallelstimmen. Die komplette Streichung ab dem Larghetto am Ende der Partitur, anfänglich in Des-Dur, war vielleicht zu anspruchsvoll, für das zu erwartende Publikum. Ein F-Dur Abschlussakkord vorher klingt erholsamer, zumal im Urlaub nicht wahr. Der an einem Gag interessierte Musikfreund amüsiert sich an der Kritzelei am Anfang. Aus MARTHA; POTPOURRI ist Martha, Potpourrie geworden, was so viel heißt, wie „Martha verdorben“. Der Dirigent (Assistent? Es gibt noch ein sauberes Conducteurexemplar in der Mappe) hatte wohl einen schwierigen befristeten Sommerjob angenommen. Alternativ könnten wir das aber auch interpretieren als Kommentar zu der vereinfachten, aber verdorbenen Version der Flotowschen Martha als Originalstück. Genauer wollen wir das gar nicht wissen, oder?
Aphorismen
Eine Sammlung von Aphorismen, wie sie Georg Christoph Lichtenberg hinterlassen hatte, regten viele Denkende an, sich mit seinem Gedankengebäude zu befassen. Die prägnante Form der Zusammenfassungen, Hypothesen oder Vermutungen zu jeweils einem großen Thema hat ihn unsterblich werden lassen. In Form von Gedankenblitzen, Neudeutsch Tweets, vor mehr als 222 Jahren, gestorben ist er im Jahr 1799, zeugen von großem Weitblick, Tiefe und Breite seines Wissens (Polymath). Jede Person, die sich heute in der Schule mit der Infinitesimalrechnung befasst, der mathematischen Annäherung an einen GrenzwertS (Mathe Vorlesungsnotizen pdf), findet bei Lichtenberg zum Beispiel die Anwendung dieser Methode auf soziale Phänomene. Einer Wahrheit werden wir uns auch nur annähern können, selbst wenn wir sie auf unsere Weise, zumindest temporär, als solche definieren. Vor mehr als 250 Jahren hat Lichtenberg bereits in seinem ersten „Sudelbuch“ interessante Gedanken niedergeschrieben, die uns heute noch Nachdenken lassen. „Unser Leben hängt so genau in der Mitte zwischen Vergnügen und Schmerz, dass uns schon zuweilen Dinge schädlich werden können, die uns zu unserm Unterhalt dienen, wie ganz natürlich veränderte Luft, da wir doch in die Luft geschaffen sind.“
Dem modernen Menschen ist das Bewusstsein, in die Luft geschaffen zu sein, fast vollständig abhandengekommen. Unsere Eingriffe, wider besseren Wissens, lassen weltweit jährlich Millionen Menschen vorzeitig sterben am Smog der Moderne. Innovation ist enervierend, wenn sie nicht vornehmlich den Menschen im Blick hat. Es sollte noch einige Jahre nach Lichtenberg brauchen bis Goethe Faust den Satz sagen ließ: Die Geister, die ich rief, ich werd’ sie nicht mehr los. Lichtenberg setzte das obige Zitat so fort: „Allein wer weiß, ob nicht vieles von unserem Vergnügen von diesem Balancement abhängt; diese Empfindlichkeit ist vielleicht ein wichtiges Stück von dem, was unsern Vorzug vor den Tieren ausmacht.“ Aus dem Akt der Balance den jede/r Einzelne zwischen Schmerz und Vergnügen im Lebensverlauf beschreibt ist längst ein gesellschaftlicher und politischer Balanceakt geworden, zwischen gesellschaftlichen Gruppen sowie zwischen Generationen. Die Abweichungen von einem Grenzwert oder von einem ausbalancierten Zustand sind ebenfalls größer geworden, so dass der ganze Akt ins Wanken gerät. Mit dem beschriebenen, unserem Vorzug vor den Tieren, könnte jedoch ebenfalls ein Teil des Problems sein, denn die Vernichtung der Biodiversität ist nun mal noch die Lebensgrundlage des homo sapiens. Seien es Schwankungen um einen Mittelwert oder immer kleinere Annäherungen an einen Grenzwert, wir wanken auf Pfaden, die Lichtenberg angerissen hat. Blogposts sind wohl vergleichbar den Einträgen in Sudelbüchern. Aus vielen Puzzleteilen kann ein Gesamtbild entstehen, muss aber nicht. Die Begriffe „Random Walk“ oder „Brownsche Bewegung“ sind erst lange nach Lichtenberg entwickelt worden. Heute sind wir von dem „Random Walker Algorithmus“ begeistert oder erschreckt, wenn letzterer für „fake news“ statt Wahrheitsfindung missbraucht wird. 
Photo K
The self portrait is a timely topic for an exhibition of photography. As part of the European month of photography (EMOP), the PhotoBrusselsFestival offers a good overview of what photography deals with in the 21 century. The Korean cultural centre (KCC) in Brussels has a long tradition to serve as an exposition in the centre of Brussels (Sablon) and is joining this year’s photo festival. The 2023 photography festival has the “Self-Portrait” as a guiding theme. Rather than entering the debate about “portrait chosen or portrait endured” (Photographica 5,2022) the self-portrait has more degrees of freedom in it. Even if it is apparently a choice to portrait oneself, there are ample examples, where the urge to produce a self-portrait is part of a wider concern for fundamental issues.
The exhibition of 5 artists from Korea at the KCC invites us to reflect on the pervasive self-portrait practice all around us. The self-portrait is not only a tool of self-reflection, which has a long tradition in art (just think of a famous drawing by Albrecht Dürer of himself), but self-portraits are also pervasive on media and social media today. Additionally, the self-portrait is a powerful tool of thinking and imagining yourself at various stages of the life-course. For centuries it had been a social or political privilege to have your portrait taken. It still is to some extent, but only if the person taking the photograph, has a special reputation. In a market difference to the selfie, the exhibition of artists in the KCC highlights the process of self-reflection that is part of creating the portrait as well as the ensuing reflection by the spectator. In looking at the self-portrait of the photographer, we might involuntarily deal first with our own perception of the image. Danger, dreams, fantasy, sorrow, pain, self-assertion and reconstruction of the self, all these themes come to mind when confronted with the self-portraits of the 5 artists (Bae Chan-hyo, Jeong Yun-soon, Lee Jee-young, Ahn Jun, Choi Young-kwi).
KCC director Kim Jae-hwan names this collection, curated by Seok Jae-hyun, “An odyssey of images leading to self-re-flection”. In referring back to the protagonists in novels from Hermann Hesse, he points our attention to the “unique journey through images as they find themselves”. To embark on the journey visit KCC in Brussels, ask for a copy of the catalogue or start by reading the title of the exposition: “Who Am I” – it is apparently no longer a question after the journey. Is it for you? More reflection on images and photos here. 
Art Un-Fair
The Brussels Art Fair (Brafa 2023) with its long tradition is certainly a major highlight in the world of art in Brussels. In view of the languages spoken at the fair, mainly French and Dutch, some English with here and there a word in Spanish or German, the international reach is probably still not at the level of before the corona crisis.
The availability of established, internationally recognized art over many centuries on the art market is remarkable. Whereas before the crisis speculators bought art to shield their fortunes from a high inflation and/or politically instable period, nowadays it seems to me, that some art is returning to the market due to the need for liquidity of speculators or risks of confiscation in case of dubious previous acquisitions or ownerships. Renowned galleries, of course, provide impeccable certificates or information on them, a tricky business in itself. Anyway, the tour on the fair is a “parcour” through the history of art, mainly through the Western or European arts across centuries rather than decades. Most persons will find splendid examples according to their preferences of art ranging from paintings, sculpture, prints or other artefacts. Beyond the impressive individual art work, the arrangements and “mise en scene” of art is another learning experience at the fair. Whereas most public museums are happy to make accessible as much as they can of their collections and archives, the private art market has another objective. Effective and convincing presentation of the artefact is likely to “enrich” the value of art work as well as the seller and the dealer. Technology allows great lighting and some otherwise “sombre” artwork becomes a shiny little piece catching eyes, hearts and wallets. For some visitors it works probably the other way round.
For persons overly stimulated by art, I recommend to close the actual or virtual visit with a look at the little bit cheeky artwork presenting Belgian chocolate next to royalty (Gallery Delaive, showing Peter Anton’s “Paradise Variety” next to Andy Warhal’s depiction of a Queen, see below or their Instagram presentation). A sublime moment to repeat the experience at home at moderate prices with your very own box of chocolates. At a price of 10€ each box you can enjoy roughly 2000 of them for the price of the art work. The question is: What is more healthy? Think about mental health as well. Alternative question: Art on a Fair is fair, unfair or fair traide? 
60s
“Make love, not war”, is a summary slogan of all sorts of protests that have moved the sixties. With the spread of television impressive images caught attention no longer just locally, but almost across the whole world. With the inauguration of political debates on TV between Kennedy and Nixon, reaching millions of persons at once and images travelling borders faster than to translate text, spreading of new ideas and political actions was more rapid and more emotional. Commonly the 60s are described as the sex, drug and rock-n-roll period. But there is much more to it. Yes, the sex revolution got started and access to, as well as experimenting with, drugs became more widely spread. Music became a defining moment for young people from teenage years onwards. After Rock n Roll from the 50s, came the rock music and pop culture, which were able to bring together huge crowds of several hundred thousand party-goers. The Woodstock festival and hippie gatherings became a defining moment mainly for the young. Older generations still battled for affordable housing and the “Great society”, as a large-scale anti-poverty program was called.
The phenomenon of the Beatles co-defined the 60s. The Beatles captured more than just one generation with their popular songs and iconic style. Mary Quant, attributed to have designed the mini-skirt, equally co-defined a period with a visual provocation to conservative life-styles. In parallel, the sixties saw the civil rights movement grow, Black Power succeeding with peaceful actions more widespread attention, leading to the abolition of openly racist practices. The peaceful movements and happenings, however, had to face the deadly attacks on J.F. Kennedy and Martin Luther King during the 60s. The whole decade was influential in the field of education as well. Based on a new spirit of altruism and happiness combined with, but also beyond religious feelings, new forms of living together, sharing and the common good were tried out. Anti-authoritarian educational practices were influential beyond the 60s.
Books covering the 60s are manifold. In addition to Arthur Marwick’s impressive, multi-faceted volume “The sixities”, I enjoyed the book by David Burner “Making peace with the 60s”, especially his approach to burn some received wisdoms about the 60s, namely the restriction of it to those 10 years. “The withering away of philosophy”, the beginnings of postmodernism and a theory-driven or conceptual approach to the decade, amongst other topics, is the merit of Fredric Jameson (1984, p.192). “The 60s without apology” is a programmatic title well worth thinking about seriously as the editors and authors did.
Besides the ecological disasters of the 60s already, (nuclear, oil and wars), Mini Cooper cars, Lava Lamps as well as Blow or Ball Chairs, Barbies, Frisbees, Brigitte Bardot and Pippi Longstocking (Patricia Massó, 2010), all were dressed to impress. “The 60s without apology” by a group of editors nicely summarises the review of the 60s and their lasting effects on us, for better and/or worse. 2 generations later in 2023 youth is again threatening mass mobilisation in France as depicted in LeMonde 4.2.2023. It is a kind of “déjà vu experience”. 
Linguistics2
Languages are simple once you understood the making of them. Take children, they learn the alphabet first, and use notions or images in alphabetical order, which you associate with this list of short words from A to Z in western cultures. From short words like “Cat” and “Dog” the learner moves on to longer ones like “Bird”, just 4 letters now. More advanced learners then use more letter words like “supercalifragilisticexpialidocious” invented for amusement in the Disney-film Mary Poppins. It sounds a bit like one of those never-ending long German words with lots of nouns just added on. This is exactly what we shall do in the following. A bit like in computational linguistics when ChatGPT is predicting the next word, we use algorithmic thining to form new combinations of an alphabetical list of notions. We start in the table below with column 1, then tell our spreadsheet to copy cells A1-01 to Z1-26 list and insert it in the second column just one cell below and insert Z2-27 at the place on the top of the list of column 2, which is A2-01. Then take this column 2 and repeat. Stop after, lets say the repeat counter is N=25.
The first 2 words combination then is “Action Zero”. Take this, enter it into Computer Search and take the top entry. “ActionZero” is an actual company name proposing actions to achieve net-zero emissions. Following this, we produce a whole encyclopedia of pretty up-to-date knowledge from the WWW with hardly any humans involved anymore. We only need to cut out duplicates and nonsense entries. That’s what most editors or teachers are used to do. Knowledge creation might no longer be reserved to the human species. Oh my God – but the machine might eventually sort this word out as nonsense concept, too. The new mantra could be ZeroGod or let us try the reset like in GodZero. In other words we move from HamletMachine to our own KnowledgeMachine. 
Romanatik2
Zur romantischen Periode gehören die bekannten Lieder von Schumann und Schubert. Meine Auswahl dazu liebäugelt besonders mit den Liedern zum Lindenbaum. Die Linde mit ihrem süßlichen Duft an warmen Tagen hat Malende der Romantik sowie die Dichtenden und Komponierenden betört. “Am Brunnen vor dem Tore da steht ein Lindenbaum …” kannte vor 50 Jahren jedes Kind. Etwas weniger bekannt sind die fabelhaften Rückert-Lieder von Gustav Mahler: “Ich atmet’ einen linden Duft …”. Für mich steht dabei die Atmosphäre in der Nähe der Linde im Vordergrund. “Unter den Linden” assoziieren viele nur noch mit der Verkehr in der Hauptstadt auf dem Weg zum Brandenburger Tor. Zum Reinhören und Reinversetzen in die Romantik sind die Lieder ein idealer Weg. Der Frühlingsglaube (Schubert Op.20.2) besingt die linden Lüfte und das Aufblühen der Natur. Es keimt die Hoffnung auf, dass sich alles zum Besseren wendet. Doch etwas Skepsis ist schon angebracht. Im Lied “Die abgeblühte Linde“, ebenfalls von Schubert vertont, ist dann das Altern und die Treue thematisiert. Der Zyklus der Natur und Jahreszeiten nimmt scheinbar unaufhaltsam seinen Lauf. “Nur der Gärtner bleibt ihr treu, denn er liebt in ihr den Baum”. Das weise Herz will Gärtnern und erhalten, was so viele Emotionen und Optimismus hervorgebracht hat. Wir müssen die Bäume retten, aus Pflicht die Romantik inklusiv und erlebbar zu erhalten. Dazu können wir mit den Linden ja schon einmal anfangen. 
Photo
Photography has captured our imagination for years already.
It is now a daily activity of many people to “capture their experience”, if not even their existence in some photographed way. Susan Sontag (1977) coined the phrase that photography “feels like knowledge – and, therefore, like power”. You are in a relation to the world. Taking the photograph in my view is the Mephistopheles moment. You are in control of the object taken by the camera. Arranging the scenery, waiting for the perfect moment, expression, light or colours is like mastering a situation, an atmosphere, an emotion. Photographs have the power to work as a document. Editing has become easy and pervasive with digital tools. However, it was always present in the traditional technical parts of shooting and developing subsequently in the dark room.
“to be taken” on a photograph is more like the Faustian moment of realising that you are manipulated, or at risk of being made use of, for some purpose, unknown to you at that moment.
Beware, a photograph is always just an image of an image. The photographer is the intermediate person using a specific technology to transform his perception or vision of (her/his) reality into another image of it, creating some form of virtual reality.
In addition to this twofold transformation, the third transformation is historically the technical development of the negative into the print (see below). Nowadays, this is the compression and editing into a specific format. Despite these transformations, a photograph is admitted in court cases as providing evidence of guilt or to identify an illicit act (excess of speed limit). Infringements on privacy are the rule rather than the exception. Who is that person sitting next to you, and at what time of the day?
I, personally, apply photographs often like note-taking for research to capture spontaneous ideas or associations, which await further interpretation or may serve (served) as inspiration.
Compared to photography, painting has been a more elite artistic practice for many years. Taking photographs has democratised the image-taking art forms. Instead of originals, many of us have collections of photos from museums around the world. We take “photos of photos” to reveal the world around us and reflect on values. The social construction of the world is directly visible through the process of taking, collecting and curating photographs. Construct your own world or the world will construct or deconstruct you instead.
Politicians (e.g. Angela Merkel), John F. Kennedy or historical figures, all had their defining moment condensed into one or several photographs, what have been famous paintings in art history before. Susan Sontag wrote 50 years ago: “… a photograph can be treated as a narrowly selective transparency”. The third transformation of developing and/editing, shown in the images below, explains what we might learn from this citation in a technical sense. Just as courts have to evaluate, whether a proof is admittable and contributing to finding the truth; viewing photographs is a balancing act between art and truth.
“Even when photographers are most concerned with mirroring reality, they are still haunted by tacit imperatives of taste and conscience.” (Sontag, p.6). Photographs document sequences of consumption. We should frame this as CO2 footprints in the 21st century. Restricting print to a few “best of” was and is necessary to reduce the dirty footprint of photography, particularly since photos have become a mass media as much as the preferred media of masses.
With photographs we certify our own certificates, for example in case of job applications or passports. We encounter “cosmopolitans accumulating photograph-trophies” in all instagram-able locations.
Taking photos is like a “friendly imitation of work” (p.9), you do something useful in documenting the images of a world in danger of being lost. We can give importance to otherwise forgotten realities, attach importance even immortality to something or someone of our choice. We make history through it or try to make it at least. “When we are afraid, we shoot. But when we are nostalgic, we take pictures.” (p.9) Sontag defines photographs as part of the repertoire of surrealism (p.77 ff), “to finding beautiful what other people found ugly or without interest and relevance …”). We are at risk to mistake photographs as reality and experience the original as “letdown” (p.147). The return to polaroid instant photography brings us back to a proclaimed authenticity of the orginal, unique moments, with supposed unfiltered not-edited images. The true moment of having had fun or joint experience without use of photoshop to add the missing member.
“I take photos, therefore I am”, has become the mantra of modern societies. We tend to ignore that we are taken on photos a million more times than we take some ourselves (video surveillance). It is a question of power in the end. Edit yourself or you become edited.
(Image: Prix du Tirage photographique BnF 2022 Laurent Lafolie, photo below). 
Zigarre
Die Zeiten, in denen Zigarrenrauchen Schlagzeilen machten, sind eigentlich lange vorüber. Heute wundern wir uns lediglich über die Sorglosigkeit der Personen bezüblich ihrer Gesundheit. Friedrich von Flotow hat die Szene im Salon de Marquis de Custine (Paris) in seinen Erinnerungen vorzüglich beschrieben. Die Schriftstellerin George Sand hat die Gemüter mit dieser Rauchszene nachhaltig inspiriert. Frédéric Chopin (1810-1849) hat an diesem Abend seiner (späteren) Mäzenin eine Ovation dargebracht. Flotow hatte sicherlich einen inspirierenden Abend verbracht. Seine unveröffentlicht gebliebenen Memoiren wurden von seiner 3. Frau publiziert. Ein Vorabdruck auf Schwedisch habe ich in der Svensk Musiktidning vom 15-8-1883 gefunden. Datiert ca 6 Monate nach seinem Tod, heute vor 140 Jahren, ist das eine Würdigung des Komponisten in Schweden und eine Anerkennung der Aufarbeitung und Verbreitung seines Werks durch seine Frau. Die Aristokraten und ihre Kreise waren Anregung für viele künstlerische Kreise. Das wohlhabende Bürgertum hat später diese Rolle übernommen. Heute brauchen wir zahlreiche öffentliche und private Stiftungen oder Crowd-Funding für diese Events und Inspirationen.
(Quelle: Flotow, Friedrich von. (1883). F. von Flotows minnen. II. En soaré hos marquis de Custine [Beskrivning av G. Sand (baronesse Dudevant) och Chopin]. Svensk musiktidning, 3(16), 121–122. ) 