Category: transparency

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Pervasive waste

From time to time waste from so-called highly developed countries is making headlines and then it is forgotten again. Huge amounts of plastic waste gets shipped for example from the USA to Malaysia in containers regularly (NYT 2025-7-1). The dumping of waste in other countries where it is cheaper to waste the waste is a cynical practice. Not only is the potential for reuse and a circular economy disregard, the little control that is exercised how the waste is treated afterwards is neglected. Some might just end up in our oceans later on or find its way in our food chains. The recent discovery of lots of nuclear waste at 5000 m depth in the sea in another extreme example of this practice to dump waste affecting all of is when profits have been accumulated inn the hands of a few enterprises and states. Such external effects as they are called in economic theory are part of the standard economic thinking. The challenge is to detect such behavior, persecute or better prevent it. This calls on countries who produce the waste to check for the contamination potential and treat their own waste. Fukushima has lots of barrels of nuclear waste waiting. The pervasive nature of this waste will make it last for thousands of years. “Beggar thy neighbor” with your waste is a major default of our current economic and social model. It remains an unresolved puzzle why mankind continues to work towards its own extinction. (Image: Le grisou, Constantin Meunier, MRBAB, Brussels). 

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History coined

It is an ambitious project to frame history of a country or continent according to the succession of coins. In the KBR such an attempt is currently on display in 2025. The history of a country in the center of Europe is reflected sometimes through different occupying forces who imposed their currency onto the occupied territories. The Greeks and Romans had an overriding impact on the development of coins in human history and society.  Precious metals were used as basis to embody lasting value into coins. The images on coins are also a way to reiterate the dominance of a new ruler or governance. From the Roman occupation there are nice specoin the KBR collection as Julius Caesar named one part of the 4 occupied territories “Belgica” beyond what we define as borders of Belgium in the 21st century. Control of your own currency means also to be able to produce unique pieces in your own foundries. The history of coins is also a history coined by those in power to enforce their political power onto the economy. (Image: KBR, The history of Belgium illustrated through coins, 2025).

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Social promise

In the beginning and middle of the 2020s the social promise to younger generations has been broken. The latest figures from the USA reveal that 2 million students (WSJ 2025-6-25 A3) who have financed their studies and potential social mobility by taking out a substantial loan are very likely to default on their credits. This observation was less a surprise to labor market analysts as the stalling of student hiring in many countries has happened for several years now. The more surprising finding is that the Wall Street Journal 2025-6-25 has been reporting on this. Banks or universities who are highly exposed to this kind of risk will themselves become downgraded for their credit rating. Higher interests for universities means higher fees and higher student loans eventually. The social promise to reach higher status and earnings through higher education as the social promise of the meritocratic society becomes an illusion. Investors in student housing might also find the sector less juicy for them. Students and their parents were taken hostage by an excessive commercialization and commodification od education. Lifelong learning is a still a promising route to revitalize the social promise.

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Home financing

For most people the biggest investment decision during their entire life course is the decision how to finance their home. The calculation of the costs of a bank loan over 10, 15 or 20 years to finance the acquisition of a home is a necessary part of basic financial literacy. The contract of monthly installments over years, considering economic uncertainties like inflation and interest rate payments, necessitates some basic knowledge of calculus and maybe the use of a spreadsheet to prepare payment plans with different scenarios. According to the Wall Street Journal of 2025-6-25 many home owners in southern states “slipped under water” in recent months in the USA. In short, buying a house when they are most expensive with a high interest loan and little down payment puts you at high risk if the prices for homes decline, for example like in a recession or stagnation. You can find yourself in the situation that the mortgage you have to pay suddenly exceeds the value of your home at actual prices. It is really important to be aware of the overall economic situation and risks of changes, like interest rate or inflation spikes due to a changing policy on tariffs. Reading and learning about financial risks should really enter into the school curriculum, but not left to maths classes as this will frighten off many students to take this topic seriously enough. 

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Home Leaks

When did you last think about leaks in your home?
Usually we associate leaks with water leaks, or the heating system leaking somewhere. In the 21st century leaks at home are more importantly the leaks of your home security, especially your email, digital and cloud services which are at risk. You may test your favourite AI system to advice you on your risks for digital leaks, but we know little whether these systems are yet another dangerous port of entry into your home or privacy themselves.
There is a helpful tool to find, whether your email has been hacked or distributed widely already for potential thefts of your identity. Hence, better check this from time to time using for example the “leak checker“, just like checking whether you closed your door or the water tap before leaving for vacations. As we live more and more in “virtual homes” in addition to our physical homes, checking your digital identities should become a part of our personal hygiene routine. Let’s just take a shower from time to time and change passwords regularly.

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Hallucinations serious

There serious hallucinations by AI and there are funny hallucinations by AI. Do we want our various AI models, from time to time, to crack a serious or funny joke? Well, that’s a bit the spice of life. However, not knowing when the machine is joking and when it is serious, this is more likely to seriously disturb most of us. This reminds us of our school days were teachers were not amused some pupils not taking them seriously in their efforts to transmit information. Now we know that a good atmosphere is conducive for better learning progress. AI as teaching and learning assistance could well work best in a “fearless“ classroom. Repeating a lesson several times and at your own learning rhythm will help independent of the seriousness of your teacher. Self-directed learning with a little help by AI might do the trick for many to advance how and when they feel ready for it. Hallucinations rates are a standard test for AI models. They range from 1% to 25% of queries.  This is not in itself a problem. It has become tough to find out about the 1% -2% models because you no longer expect them to give wrong information. These are the 1-2 out of a hundred of cases where we are confronted with serious hallucinations, seriously.
(Image: extract from „cum Polaroids“ from Eva & Adele, Hamburger Bahnhof, Berlin 2024-5-22)

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Contextual Vision

The attempt to define a sociology of vision has had a hard time to build on hard evidence that vision may depend on context or in a broader sense your visual heritage. A standard definition of context in vision highlights the areas around a focal point. The findings by Krupin et al. (2025) show through the comparison of persons from very different populations that our vision depends on our cultural background. It is the social background and upbringing in a specific cultural setting, which determines what we see in an image at first sight.  The so-called Coffer illusion test (Deregowski 2017) reveals what we see in an image spontaneously and maybe after some longer staring at the image or doing it repeatedly, we learn to see that there is more to see than our original impression. Depending on our cultural heritage we might focus unconsciously on rectangular or round shapes in a geometric image. This fundamental finding questions the view that there is only one universal kind of vision common to all humans. In fact, there is variance around what we see and thereby how we perceive an image. This research provides a justification to delve also into the field of a sociology of the visual. Because of the common term in informatics “WYSIWYG”, (what you see is what you get), we might  spend more efforts on research of how human vision is shaped over generations or according to social background. We know that in some images different people see different things. What appears as a splendid opportunity for some, is a very risky situation for others. Eyes are so closely wired to our brain that inscriptions of vision on the brain functioning are quite likely. The plasticity of this process over the life course remains a crucial topic to understand the process(es) of how a person’s social background shapes her/his vision.

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Global warming

The annual update of the global warming indicators (source: Earth system science data 2025-6) gives more reasons to worry about the future of our climate. The objective to limit global warming to +1.5°C, established at the Paris climate agreement in 2015, is no longer achievable. This is the hard evidence based on the global network of scientific data collections and their projections. Fossil fuels are a major cause, deforestation and greenhouse gas emissions as well (Forster et al. 2025). As a consequence, human-induced warming of average surface temperatures and flows of heat into oceans continue. The first consequences, we witness in many parts of the world already. France is particularly affected (Le Monde 2025-6-20, p.7). What used to be called “natural disasters” is better described as long-term consequences of human-induced global changes like global warming. About time to take our CO2 footprint even more seriously. The “All electric society” can reduce reliance on fossil fuels considerably, as of now.

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Musician Historian

Musicians are usually perceived as “part of history” rather than being historians themselves. However, recent research on Bob Dylan has extended that view to portray Dylan in his role as historian as well. The issue here is more with the historical periods and references the musician, composer and song writer builds on and interprets historical events. Thereby, his thoughts and impressions on living through historical events enter into his work as an artist. Dylan is literally “doing history”. He puts events of past and present into perspective of his own making and reached authority through the non-conformist perspective, which connected him to as a performer to his various audiences. His approach to doing history consists in the re-presentation and re-creation of historical narratives. Nina Goss (2024) in her book review highlights the “irruptions of the past into the present unique in popular culture”. The re-arrangement of fact and fiction encourages us “to inhabit, question, and revise historical narratives and tropes” (p.399). Several musicians have specific ways of reflecting, sometimes critically, on history in their artistic work. Bob Dylan certainly is a very prominent example of this an has been honoured for this by the Nobel Prize for literature. It remains an interesting perspective to review composers and their choice of libretti for operas as a way of doing history. The shifts from royal drama to revolutions and popular scenes are in this line of interpreting musicians also as historians.

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Home security

Digitalization has made it possible to step up home security at reasonable costs. The video surveillance of homes inside and the immediate surroundings are feasible through the use of connected cameras. The footage can reach sizable amounts of data, but intermittent recordings reduce or the AI-assisted detection of movements on a person’s property have become standard home security. Even for apartments the video enabled door bells and digital locks have improved the security level for those who are willing to invest in home security. A good neighborhood watch system is, of course, in most cases a superior solution. But neighbors change and social interaction is often reduced to minimal contact in most suburban regions. As with heating of homes, home security is also depending on what makes you feel comfortable at home. For some 20 degrees Celsius is enough and a solid mechanical lock is sufficient. Others have made very different experiences and want their digital devices directly linked to a professional security or police service. Like it or not, home security is part of the modern home just like many other digital devices or TV sets. 

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Memories updated

In Berlin and many other German cities it is a regular practice to scrutinize the memory inscribed into street names. In order to correct the honors given to persons with a past as fascist or responsible for mass killings street names were changed at several points in the history of the city. Streets named after battle fields, for example, are a continuous point of discussion. It is important to keep the perspectives of victims in mind. Therefore, changing street names is a little contribution to rethink the role of places and persons. Such changes are sometimes very controversial as people become accustomed to names, some might even not care much at all. Recognition and responsibility, however, have a lot of currency in historical perspective. Overpainting like in the paintings from Gerhard Richter has an important function in society and can be one way of coping with the demons of the past.

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Draft Lottery

For decades the “intergenerational effects of the Vietnam draft on risky behaviors” has been overlooked. Deza and Mezza (2025) identified several changes in parenting styles (PS) due to existence of a draft lottery. PS like uninvolved, permissive, authoritarian become more frequent. Similarly, risky behaviors of their children like smoking, drinking and drug abuse tend to increase. According to this new evidence on an old strategy to recruit military personnel the effects are not only directly on the persons drafted, but have lasting consequences onthe next generation as well. This increased overall the burden of going as well as preparing for war in the societies concerned. In view of the Russian aggression on Ukraine territory the consequences for both countries are considerable and shall be transmitted to future generations as well. Even neighboring countries fear and feel the heat of recruitment for armed conflict.

 

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Artist Development

For many artists it takes years before they find their idiosyncratic style. Testing different forms of art before zooming in on a particular style of art is the  common trajectory for most artists. Maybe the art marker and collectors of art are in search of a “defining style” for an artist so the uniqueness becomes more easily identifiable. Being part of a group of artists has been beneficial as well. The “Neue Nationalgalerie” in Berlin makes this development of an artist, in this case Lygia Clark transparent through the organization of a retrospective devoted to her evolution from abstract paintings towards participative and more organic forms of art. Berlin offers to interact with the pieces at the exhibition. You become part of the exhibition and the happening of art instantaneously. The form stays the same, the persons interacting change permanently. The piece of art is never the same. Just the idea of it thrives. In the Corpo Colletivo the performers wear an overall, all of them are linked to each other and movements happen organically as a group rather than individually. This is like a tutorial in sociology as individuals move as part of a collective body and feel the embeddedness and multiple links to other persons (Image: Corpo Collectivo 1970, exhibit in Berlin 2025)

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Robot repairs

Robots have been used mostly in industry for assembling, transport or sorting tasks. There is also a role in disassembling to enhance circularity. To repair electric or mechanic devices there is an enhanced version needed which starts with a diagnosis of the problem. Algorithms can sort out promising from dead end routes of repairs. However, the recognition of objects into things that can be repaired and those without repair potential is a worthwhile assistance. Beyond the economic and ecological rationale for repairs, there is an emotional or nostalgic sense to it as well. Maybe, from a life course perspective any object related to the teenager years of a person qualify for nostalgic value. Even simple robots or AI-assisted objects may qualify for this in future. Artificial friends will be like tamagotchis in need of repairs.

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Dépaysé in gallery

The installation ar the Neue Nationalgalerie in Berlin entitled „Fog Sculpture“ takes us from the sculpture garden of the Gallery into a tropical forest atmosphere. Just changing the humidity and visibility through the artificial production of fog transforms the perception of the artworks. A kind of Asian flair surrounds the western sculptures in the garden. The fog installs also a mystification whoch we know in art from the romantic painters like Caspar David Friedrich for example. All long-term followers shall appreciate the new perception of the artworks thanks to Fujiko Nakayo. It’s definitely more than old wine in new bottles. The artwork brings a more global twist to the preexisting sculptures and reminds us in Berlin even of the wrapping and unwrapping of the  Reichstag building by Jeanne-Claude Christo. We see the sculptures or architecture differently after they disappeared temporarily and reappear again.

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AI-assisted

We used to create and use an artificial word to shorten explications in conversations. It is easy to understand for everyone nowadays to describe an online search as “I googled something” without further concerns about the sources used in answering a question. Apple just announced that its search engine Safari was used less than expected recently. The reason might be that more and more people search online by using AI tools or Apps that directly provide answers to their queries. ChatGTP and Perplexity are 2 AI-programs that might replace the other search engines we have gotten used to over the last decades. Particularly “how to …” queries offer reasonable instructions. In Perplexity you get an answer after you specified a little bit your query and, therefore, the answer is more likely to be right to the point offering text, images and sources. In ChatGPT you enter into a dialogue to further specify your query if unsatisfied with the first response. The judgement of an authoritative response is up to you if you want to follow up. The assistance of an AI-system cares less about the source but about the speed of response that it can provide. For sensitive questions or queries with less obvious or clear answers more interactions with the tools is necessary. The pricing and our willingness or ability to pay in cash rather than through the selling of our data for advertising will determine whether we shall “chat-it” or “plex-it” in future.

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Leber JA

In Berlin Schoeneberg there is a memorial in preparation for the courageous couple of Julius and Annedore Leber. Julius Leber has been incarcerated several times by the Nazi officials, tortured and finally executed in Berlin. A link to the group of people trying to overthrow the NS regime (1944-7-20) caused his arrest and execution in January 1945. His wife Annedore published several accounts of the resistance movements, which existed during the NS regime. These people were aware of the fact that they were risking their life with such activities, but persisted nevertheless. We owe Julius and Annedore Leber a decent commemoration as we need to remember that such courageous examples existed even until the last few months of the NS dictatorship. The site allows for a building and learning center which could serve as an archive and encouragement to fight for democracy. It is less obvious than we thought it would be.

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Local history

In Berlin and many other big cities in Germany like Munich and Hamburg there are local history projects which tell the stories of specific places or a house linked to liberation day or deportation or courageous acts during the Nazi  grip on Germany and terror across Europe. The initiative « Denkmal am Ort » has become a kind of citizen science project which brings people together to raise awareness again for the cruelties committed under the dictatorship of Hitler and the fascist political movements. Remembrance is not a passive form it can take many active forms as well by simply trying to find an answer to the question what happened during the 30s, 40 and 1950s in the house you are currently living in? Access to archives of cities and small towns can tell very surprising stories about local history. It is a great inter generational experience as well and sometimes the unspoken history turns into a great conversation about history and responsibilities. History is everywhere you just need to keep your eyes and mind open.

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Gedächtniskirche Berlin

The church of commemoration „Gedächtniskirche“ in German has been chosen as the central place of commemoration on Liberation Day in Germany for the ceremony of all religions. All institutions of democracy were represented in addition to the president of the FRG. The church was destroyed, but not completely and the decision to keep the remainders as a permanent warning is visited by thousands of people each year. The public television broadcasts live from the ceremony and some regions of Germany have chosen Liberation Day as a bank holiday following many other European countries. The official end of fighting of the 2nd World War 80 years ago has spurred many events. The need to understand how this could happen and how to guard against extremism to take hold of a country and start a war have preoccupied following generations. The task is not accomplished yet as many people still deny the facts or try to rewrite historical facts with misleading interpretations. The commemoration is well worth a pause to reflect, for example, what were my grandparents doing during these years. Beyond the speeches on this day there are many ways to get involved in carrying the memories to the ones born later.

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Lasting memory

On the 8th of May 2025 we celebrate 80 days of liberation from the Nazi regime in Germany. It is the liberation of all those who survived the horrors of oppression and war. The Nazi terror intensified  after the power grip in 1933 and reached unprecedented levels throughout the ruling of the NSDAP until the Allied Forces managed to chase down the last fighting cells and Hitler hiding in a bunker before he killed himself. Liberation was the experience of survivors all across Europe. On this day and on many other commemorations it is important to remember the 60 millions of people who died due to the Nazi terror before and during the war. The “Stolperstein” initiative commemorates the millions of Jewish people who were deported or had to flee Germany and even neighboring countries to survive. In Berlin there are yearly activities to clean the “Stolpersteine” so that they are visible enough to remain a lasting memory of the horrors. (Image: Cleaning of Stolperstein in Berlin Schöneberg organised by Michael Biel on 2025-5-4). 

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Robot assistant

Adjustment processes on the labour market take their time. This means that care workers are in short supply in most countries of the OECD. Engineers as well. There are so many robots, care robots I mean, still to develop that the shortage of engineers give little hope that we shall have affordable solutions in this area for the next few years. The issue is mainly about integrating and enhancing already existing solutions. If you are a mechanical engineer you can put together motorised mechanical pieces, small motorised electric devices and, for example, small infrared emitting and receiving devises.
All this is child’s play these days (see image below). The assembling of a small Robot assistant that follows movements or can escape from a small labyrinth makes such simple structures transparent for learners and users. There is nothing magical about it, just adding together small pieces and the electronic devices to steer the movements. The learning tool from KOSMOS has been on the market for 5 years. It is a helpful device to explain basics through hands-on experience. The limits of robotics equally become more evident. Our own health and safety is concerned with larger devices cohabiting with us. A robot assistant can take on easy tasks like to follow me through my living space in old age carrying a mobile phone, keys or an emergency device. More sophisticated tasks need more sensors and AI to train the most needed and best routines. For many years this needs our input and our control as well as supervision of such devices. Most robots will operate as assistants with us in the driving seat or the boss.
This is yet another element of the “all electric society“. We are moving towards the use of more electronics assisting us from year to year.

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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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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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Beethoven Home

The home of Beethoven in Bonn is nicely preserved and full of objects related to his life and his creative work. For the musician and composer musical instruments have accompanied him throughout his life. The visit of his home of birth offers a chance to dive into the extraordinary accomplishments of this great figure of the late 18th and early 19th century. His 9th symphony is strong as ever and the European anthem has just more than 200 years since the first performance now. The visit of the museum is still the highlight of Bonn and the App of the Beethoven House offers unique insights into and listening of his manifold compositions. Handwritten notes and a pocketbook of preparations for the symphony demonstrate the all encompassing nature of music for Beethoven. From romantic letters to the romantic music pieces, the museum has it all. Even it is a rather tiny house from the outside the inner life is as huge as it can be. It is advisable to take at least half a day for the visit much more than you would usually take for visit of a museum. The link between the biographical information and listening to linked musical pieces with a chronological context are a unique experience. This spurs the interest to listen or listen again to some of the romantic masterpieces. The App is great also to listen directly to some of the music.

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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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Kids Gaming

The pressure on children and their parents is high to succumb to the temptation of digital and online gaming. Albeit there are many funny and learning alternatives for them if they are accompanied by an instructor to build or invent their own game. With some adaptations it is possible to assemble for example a coordination game for children which directs a small ball through a labyrinth. Add speed and tricky holes to the “parcour” and the race is on. It is little bit like hands-on physics as the speed and acceleration patterns across the parcour varies a lot. Planning, building and playing are an ensemble in this simple game. Probably also more fun than the x-th repetition of a digital game.

(Inspiration from: Berliner Kultur gestalten, workshops for children).

 

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Owners Dispute

Renovations of housing with distributed ownerships can be a challenging experience. In Berlin you can find a few places with visible long-term disagreement about what kind of modernization should be done. More luxurious additions like balconies or triple window isolation and so on are sometimes hotly debated and contested in courts. For most buildings you cannot spot disagreements on the outside, but some constitute exceptions to this rule. One size does not fit all preferences. In a metropolitan city there is a place and a space for all such exceptions to the rule and most people after years do no longer think about such kind of diversity in preferences or budgets available for modernization. Cities put our level of tolerance to a continuous test. You probably learn to love this or eventually you leave the inner city. There are subtle differences in urban versus rural lifestyles. In the social sciences we continue to try to understand the attraction of cities as on a global scale millions of people flock to cities.

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Reinforcement Learning

Education scientist have embraced the change of focus form a front loaded teaching format to a focus on the learning process of pupils or students. Computer scientists have adopted this strategy in shifting from just knowledge data bases and predictions of likely next words in a sentence or paragraph to learning models. Deep Seek has surprised most large language models by its successful strategy to focus on learning and reasoning. So-called reinforcement learning is key to the programming of next generation AI models. Reasoning in most cases builds on multiple step sequences in answering a more complex question. The model then returns the answer and the steps (reasoning) applied. There is a debate whether summaries or translations of texts would need the reasoning function of AI models. Most of the time reasoning might not be necessary or even counterproductive, if the translation would try to correct an obviously faulty reasoning in a text.
Maybe, imagine also that an ordinary LLM would translate a text containing fake news. A correction loop which involves a cross-checking with reliable external sources like any encyclopedia or wikipedia would complicate the answering procedure of any text. However, this is a bit like, how the process of reinforcement learning with human feedback (RLHF) works. Reinforcement learning applies a form of accuracy reward, which guides the learning or answering process with checks against mathematical or programming accuracy. Just think of basic logic to be respected in the answer.
Similarly, a formal accuracy control checks against mathematical models and ensures the answer is returning a text with a normal sentence structure or numbering of reasoning steps, an intro and concluding phrase, like we were all asked to do in school or universities. The amount of corrections from humans is reduced quite a lot and the computing resources are also only a fraction of the previous LLMs, which are retrieving answers from enormous databases or gigantic data factories consuming lots of energy in the processing of requests. Remember the movie on Kasparov, the world chess champion, who got beaten by a computer from IBM that did not only have a huge stock of previous games and tournaments, but could make judgments on positions and promising strategies to pursue. Don’t be surprised if a DeepSeek answer is superior to what our own mind and reasoning is capable of. Reinforcement learning is a learning tool, which we also may apply, if we deem it appropriate or just as one way of coming to an answer. (useful reference: Sebastian Raschka, Building a LLM from scratch, Manning). 

(Image, ChatGPT, 2 humanoid robots are thinking and discussing how to repair a notebook which is sitting on a workbench).

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Biased Results

The use of statistics in presenting results of research is common practice. Empirical studies are summarized using statistics and statistical methods based on samples of bigger populations are cost efficient. However, care needs to be exercised when interpreting results to guard against inappropriate conclusions derived from biased estimates. Since the topic has been highlighted and methods proposed to handle them, these methods were deemed worthy of a Nobel prize.  The basic problem of a bias due to a selective sample has been demonstrated by Stockwell et al. (2024). The authors investigate the old question, whether a little bit of alcohol consumption (per day) could be beneficial for our health. The statistical issue which needs careful examination is the construction of the control group against which the results are compared. Apparently many studies have biased control groups which included persons in the not drinking control group who had stopped drinking for bad health previously. Compared to those persons with other health conditions those drinking a little bit compared rather well. But of course such individuals should not be present in a control group. Of the control group is biased due to many persons with below average health the groups of interest consuming higher levels of alcohol do not perform so badly. Hence, interpretation of results from medical or social science studies has to consider carefully the actual or potential sources of bias. Not really a new results in statistics, but still not well known or understood by the public at large. Drug consumption as well as studies of this consumption could deserve the same sticker: handle with care. (Image: Extract from Tenier II David, Les fumeurs, also entitled Chanson à boire, 17th century, Paris Petit Palais).

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Retirement Plans

There are debates about the best organization of retirement. The major fault lines lie between public pension systems and systems that are built based on mainly private provision. Retirement plans in either system are subject to constraints. The recent stock market turbulence has increased the amount of uncertainty people face who invested in 401K plans in the US. Some had to take an unannounced hit to their retirement savings due to the loss after Trump’s back and forth policies on tariffs (OECD Pension Outlook). High volatility of stock market prices creates an additional constraint that you are less inclined to retire when your retirement investments have overall a reduced value. You are a bit at the mercy of capital markets even in your retirement decision, irrespective of the difficulty to predict what your retirement funds will yield as returns. Quite an important lesson to keep in mind when comparing retirement systems in OECD countries. It has been all too easy to blame public pension systems for maybe lower short term interests on pension savings. Being subject to an American president concerning your retirement plans is probably not what many countries would like to have. Trump’s choices on tariffs may have consequences we did not expect to affect us so directly.