In some cities, “I love Paris” (Jazz Song), we admire the “breath-taking” large corridors, right in the centre of the city. This has been the outcome of the urban planning in the 18th century. Haussmann designed large parts of Paris with huge corridors despite the medieval narrow streets in some of the arrondisements”. Ease of traffic, fewer riots and representative housing became the new mantra of urban planning and superb boulevards.
In the 21st century it is about time to question the notion and social process of corridorisation. This has been accomplished in a paper by Fatima Tassadq et al. (2025). Modern infrastructure like fibre-optic cables, energy or water networks are easiest to deploy in urban spaces with large corridors than the complex narrow inner cities with supposition of different kinds of network layers. The grand ideas of the 18th century should be questioned from time to time and some districts that have escaped the corridorisation might well have a particular charm about them, maybe just because they seem to escape the rational approach of making and structuring space by means of large corridors. Large corridors separate city districts and they are a major driving force of gentrification.
The rationality of corridors has some roots in maths or physics of complexity. A recent paper by Shanshan Wang et al. (2024) reports the surprising finding that the transport corridors in several cities across the globe allow for a 1.3 times the distance of transport networks compared to the so-called direct linear “bird’s flight line”. Hence, corridorisation is (has been) a rather pervasively applied model of urban planning.
Alternative approaches advocate in favor of the 15-minutes walking distance city. All amenities like shops, schools, maybe work and services should be reachable within a 15 minutes walk. This does include “walking corridors” that facilitate (social) connectivity in inner cities. Cyclists also claim their corridors or fast lanes across cities, which underlines the pertinence to take corridorisation seriously and apply the concept with care.
In any case, social connectivity is key. The big social media platforms operate similar to the traffic infrastructure in the 21st century and provide huge corridors to knowledge and people. We only realize this once a service (for example tiktok) or the internet altogether gets disconnected. We have moved from (social) categorisation to (social) corridorisation as technology and rationalisation have taken the upper hand to structure our (social) lives. 
Cheatflation
There are many ways to study inflation. You may start by looking through your collection of bills. Economists like to swear by the consumer price index or indices, if you are even more into inflation. In textbooks like “economics for dummies” we learn about rational behavior and price adjustment mechanisms through the “invisible hand” to find some sort of equilibrium.
Advanced economics courses will teach you about strategic behavior inspired by game theory and the effectiveness/ineffectiveness of cheating. For advanced economists it is, therefore, inevitable that “cheatflation” should be part of the economists’ vocabulary. Of course, a profit maximizing entrepreneur is likely to way the risk of being found out contributing to cheatflation against the potential gains.
How to cheatflate? Too easy. Any producer of a product can cheat by using, for example, other ingredients than those printed on the product label, usually cheaper ones. Instead of fruit juice (wine) you may just sell colored water with lots of sugar (ethanol) in it, but still label it fruit juice (wine) and get away with this, until a consumer protection group makes a fuzz about it. A more sophisticated way is to sell investments in ESG-rated funds, but then include dirty stocks without proper notification in the fund, which probably increases profits based on wrong labels.
There is a specific quality to cheatflation, which makes it different from shrinkflation or enshittification. The drive to “obtain unfair advantages” through cheating across a whole country or region makes cheatflation an economy-wide process and subverts general fairness rules as well as trust in a society.
(Image Saccharometer, DTM Berlin 2024) 
Californication
In a song by the „Red Hot Chili Peppers“ the term californication appeared for the first time as far as I remember. This song is rather critical of the superficial californian way of life. The belief in the dream that you may get rich quickly in California has suffered another blow wit the thousands of homes burned in the wild fires in January 2025. Dry and arid areas are spreading and the lack of water makes it very hard for firefighters to protect homes, particularly in difficult to reach valleys. Stormy weather adds to the speed of fire spreading. All these elements are predictable additional risk of climate change. Californication is the old and new word to describe a trend of acceptance of increasing climate risks by at the same time neglect of environmental precaution. Hollywood is just around the corner there and the film industry might come up with some other narratives than just the previous californian dream. Get rich fast, then run away. Sustainability is a more difficult concept and yet it keeps getting more and more attention. 
Sociolegal Circularity
At times legal systems feel like going round in circles. Legal procedures move from one stage to the next and they may get referred back to the previous instance to resolve a particular issue or restart the procedure. This has good reasons with the aim of “doing justice”. Sociolegal circularity, however, begins before the, right at the beginning and negotiation of legislation on which all legal systems are based in democracies, that is. Hence, the legal definition of waste, recycling as part of the circular economy and society is rather crucial.
Circularity is a complex sociolegal issue as the example of PFAS in plastics demonstrate. In economic theory the existence of externalities invites profit seeking of the kind like: “the sea in large part is owned by us all and there is no price attached to the (ab)use of it. Dumb PFAS into the sea, because the costs of cleaning up will be shared by all of us”. In order to limit the extent of this economic logic, we have to rely on sociolegal processes. The precise definition of property rights and liabilities beyond the PFAS issue have to be well-defined. It is an intergenerational topic as well, not only in view of deferred payments.
Parliaments have to be rather competent to look through all the complex issues of producing and recycling of materials to make sound provisions in law including future generations. Going round in circles in parliament is yet another element of necessary condition of circularity in a rather broad sense.
The air we breathe and the water we drink have become part of this “economic externality”, which is a very internal, inside of our body kind of sociolegal affair. Who is responsible for the bad air we breathe and the contaminated water we drink? Air and water have for a long time become marketable products. The more your local water is polluted, the more we are forced to buy water. The more the air in inner cities is filled with fine dust particles, the more medical doctors, hospitals and rehabilitation facilities we need to construct.
For GDP calculations these are win-win-win situations, although they make us all worse off. Society and politics are in charge to define and redefine (yes, circles again) the legal basis with a lot of precision and scientific detail. Sociolegal circularity is key. You just have to turn it in the right direction.
(Image, Palais de Justice, Brussels view from Forest district).
Socioeconomic Circularity
Some sectors of the economy receive a lot of attention, for example sectors selling fancy cars. Other sectors, like the ones regrouped under the name of circular economy, receive much less attention and show up little in headlines. In fact, the circular economy is a great example of this. There are thousands of waste and rubbish collection, sorting and recycling centers, several hundreds of waste-to-energy plants, composting sites across the European Union. Of course, there is also a European Federation of the sector (FEAD). On the last FEAD conference in Brussels 2024 it became clear that Europe is finally waking up to the challenge of recycling costly raw materials.
The narrative concerning the sector needs to change further: what used to be subsumed as costly nuisance is in fact a potential profit center for companies and society at large. We do no longer want to import lots of raw materials from countries with dubious social and environmental records as part of our supply chains for raw materials. Time to act. This, however, is a rather complex socioeconomic challenge of circularity. The price mechanisms are not fully functional in most Member States, let alone across the EU. Additionally, the social practice to recycle varies greatly between countries. Distributional issues matter as well. It is rather obvious that dumping waste from one region/country in another one has huge implications (nuclear waste), but if one country values waste more than another one, due to innovative recycling techniques, the matter takes a marketable turn. Regulation should carefully distinguish categories of materials as we do for hazardous materials in production, consumption and for health and safety purposes of employees.
Metal, battery, cement, plastic and wood recycling pose challenges, but also opportunities to improve the European material import/export balance sheets. However, first in the circle of circularity is the use of materials. There we are clear that “less is better”. Less input of raw materials, most of which we import in the EU, reduces our dependence on other countries. This is the tricky social question of circularity. Mainstreaming of more conscious use and reuse of resources is a huge social issue, which we tend to relegate to a task for the education system. The awareness that supposed waste is also a valuable resource is spreading and the growth of the sector a business and employment opportunity for many. Circularity is the new sexy sector of the 21st century.
What have you recycled today? and myself? Well, scientific online publications. Now think of ChatGPT and the AI gold mines of 2024. There is lots of value in recycling.
(Image FEAD conference Brussels, 2024) 
Book Value
What is the value of a book? For the author of a book each book s/he has written or sweated the value of the accomplishment is pretty high. From the publisher’s perspective a book is an investment and sometimes a very risky one. The book store makes choices and takes the risk to devote time and effort to select the bestselling books or the best one suited to the local or passing audiences. Next in line are librarians who either stock everything published in a specific language or country (legal deposit) or select from the offer according to perceived interests of their subscribers. On the way to their audience many mistakes may occur. Books miss their targets or librarians go wild in their efforts to guard or discard books. In any case, many books do not find their audience. Some sit on shelves for years and will never be touched by anybody. Other ones pass from one hand to the other rapidly with long waiting lists.
Even if many conservationists don’t like it, it is the use of books that honors books and authors. Pocket books play a specific role in this link of readers and writer. Use rather than conservation, is the prime role of these lighter versions of books. They also have to endure heavy weather, scratches and folding of persons focused on content rather than precious form.
Last but not least in line comes the market for recycled books. Re-use of read or unread books has increased over years and some readers are happy to discover a discarded book from a previous owner (public or private). The value of a book lies in most cases in the eye of the reader. This then makes it an object of competitive marketing and continuous auctioneering.
(Image: pocket books at display of Popular heritage Lost and Found at the Royal library of Belgium 2024.
Parallel Universe
Sometimes, it might well be before during or after presidential elections, you feel like living in a parallel universe. Especially after the U.S. presidential election many people beyond the U.S. have the impression that millions of people have rather strange views of how our living on earth could be worthwhile for all, rather than a few. In a crude and rude election campaign many people in the U.S. must have been alienated from what they imagine a peaceful living together in a country or on our planet. Faced with the brutal language it is soothing and comforting to read books again. Already in 2023 adult fiction has outperformed on the book market in the U.S. “Romantasy” and narrative non-fiction (are the new bestsellers beyond travel books, cooking, children books and comics according to circana.com.
Uncertainty, complexity and plurality, apparently, have destabilised many persons to the extent that foundation texts of religions, predominantly the bible, have become bestsellers again with more than 14 million book sales in the U.S. in 2023 and up to November in 2024. Printed copies as well as specialised editions for children go to new first time readers and buyers as well as replacing older copies. The need to find simplifying answers to basic questions of humanity is on the rise again.
Some persons might wish to find the existence of a parallel universe in studying the bible, others just a retreat from the horrors of daily news on TV and social media, we all consume more than ever before. We are no longer surprised to find the first church in Switzerland, which offers an AI in church which listens and answers to your confessions. Bible apps offer detailed search functions and reading aloud in case you prefer listening.
There are even unauthorised historical translations of the bible on the market in antiques book shops, which achieve exceptional prices.
Of universes, there seem to be many, overlapping and in parallel.
(Image: Reading Magritte on surrealism)
Passing Disasters
We live in rather cynical times. Just like the practice to scroll through hundreds of newspaper pages or social media entries we pass over the reports of of disaster after the other. Whole industries live from the reporting of disasters in a sensational manner. As the speed of reporting via social and online media has increased over the last few years the time to reflect what are the reasons for the multiple disasters has moved backstage. On the forefront are journalists and life bloggers who gain from increased reach and with the duration of their reporting of disasters. These are the first round effects. Second in line are people proposing fast fixes of what seems to be the problem at first sight. A more thorough analytical approach has little chance against the overwhelming effects of disaster imagery. Before the necessary dara and analyses have been carried out by scientists the next disaster already dominates the headlines and images. Flooding and droughts come and go faster due to climate change, but the reactions just del with reporting and capturing of attention rather than analyses. Next follows the blame game. Rather than unity to deal with consequences responsibility gets pushed from one instance to the next. Another cynical twist is the rise in insurance premiums to be paid by all, because the reporting hypes have increased the cost of repairs for insurance companies and after all more people shall seek insurance and have a higher readiness to accept higher rates for disaster insurance. Maybe this is just another more recent chapter of Sloterdijk‘s „Kritik der zynischen Vernunft“, which we witness currently. The effect of passing disasters is often a feeling of helplessness or powerlessness although we need to do just the opposite. Get together and act together after adequate analyses of underlying mechanisms. (Image Aristite Maillol Brussels, MRBAB) 
Sunny Trade
Some countries or regions struggle with trade deficits or trade surpluses, which cause worries to their partners. Eurostat publishes regularly the latest trade figures for the EU with external partners. The EU as a whole has a trade surplus in September in 2024 of € 12 billion. From January to September in 2024 the surplus accrues to 140 billion already. Overall, this is a rather sunny picture of EU trade. As we import raw materials and fossil energy mainly, the rest of the world is largely appreciating what we do with the imports, at least in an economic sense, environmental concerns tend to be neglected in such considerations.
The import statistics and figures do not capture the contribution of the sun to our energy balance sheets. We import energy from the sun almost on a daily basis and our trade statistics to not capture this, despite their huge impact on production and the fossil energy trade imbalance we report each month. Imported energy, the largest negative position in our sunny trade balance, in the EU amounts to € 20 billion per month. Harvesting more wind and solar energy as well as geothermal sources and energy storage require huge investments, but millions of Europeans are willing to contribute to this effort. With rising protectionism we should act now to avoid years of structural trade deficits in the coming years. There should already be more sun in the still sunny trade balance. To keep it that way more sunny trade will do the trick.
(Image from Eurostat, 2024-11-18, Euro area trade balance by product group in billions of €, original states in %, retrieved 2024-11-29)
On Uncertainty
Uncertainty is a catchword for all sorts of undetermined occurrences, which we might have to confront. We associate economic uncertainty with the difficulty to forecast or predict the economic evolution of key indicators like inflation, GDP, CO2-emissions, energy and raw materials’ prices and availability. Even factors like increases in greed of CEOs, psychological factors like insecurity about external or internal conflicts drive these macroeconomic indicators. Micro-level features of your own stage or evolution of the life course have an impact on and will be affected by uncertainty. Employment, housing, family, or household composition are subject to high levels of uncertainty. These micro- and macro- level factors are, of course, not limited to the domain of economic phenomena. Most recently, political uncertainty has reentered the international and national sphere with the re-election of Donald Trump as president of the United States. This election outcome of the U.S. is perceived by many as increasing the overall uncertainty due to the unpredictability of political decisions and even previous treaties with the U.S. or where the U.S. is a major partner in the agreement. These economic and political uncertainties are accompanied with a perception of growing legal uncertainty even in very personal spheres of life. Last, but not least uncertainty about climate changes like heating up of the planet and more devastating flooding and droughts contribute to increased uncertainty about future developments and the need to initiate adjustment processes and the financing of those.
The individual and societal ways to cope with increased uncertainty are one of the major economic, political, legal and social issues for the coming years. The answers are likely to be found in mutual, cooperative and risk sharing arrangements. The social in society will be a major part of dealing with increased uncertainty. 
(Image: Extrait of Paul Klee, Seiltänzer 1923)