Current contributions

Using AI as a sparring partner: How thinking in dialog becomes more productive

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AI as a savings partner

I've been using artificial intelligence for almost exactly two years now. In the beginning, it was sober and technical: entering text, typing prompts, reading answers, correcting, retyping. The way many people did it - carefully, in a controlled manner, with a certain distance. It worked, no question. But there was still something mechanical about it. You asked questions, got answers, ticked them off.

I realized relatively early on that I was missing something: flow. Thinking is not a form. Good thoughts don't come from a corset of neatly formulated input, but from talking, trying things out, thinking aloud. So I started to use the AI app on my cell phone more often - and at some point I simply started speaking instead of typing. That was the real turning point.

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Jeffrey Sachs warns Germany: Why Europe's security needs to be rethought

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Jeffrey Sachs writes open letter to Chancellor Merz

In his open letter to German Chancellor Friedrich Merz, published in the Berliner Zeitung on December 17, 2025, the well-known economist and professor Jeffrey D. Sachs speaks out with a clarity that has become rare in the current European debate. Sachs speaks not as an activist, not as a partisan and not as a commentator from a distance, but as an economist and political advisor who has worked for decades at the central interfaces of international crises, security architectures and economic upheavals. The open letter contains an unusually sharp quote:

„Learn history, Mr. Chancellor.“

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Corporate insolvency: A personal experience with a guide for times of crisis

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Guide to corporate insolvency

Looking back, it all started for me in 2007 with a business model that was surprisingly stable. I was selling refurbished Apple hardware and had a direct contact with Apple. More specifically, someone who was in charge of the refurbished department at the time. It wasn't an anonymous relationship, but a working relationship with clear agreements. The goods were in demand, the prices were realistic and the margins were solid - measured against what was to come later.

This model had a decisive advantage: it was flexible. The goods were cheaper to buy, the target group was price-sensitive but appreciative, and expectations were clear. Nobody expected high gloss, but function. This is often the healthiest phase for an entrepreneur: manageable costs, clear processes, few illusions.

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Ulrike Guérot: A European between idea, university and public discourse

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Ulrike Guérot and Europe

There are people whose thoughts you like to follow not because you agree with them on everything, but because they make an effort to penetrate things. For me, Ulrike Guérot is one of these voices. I have been watching her lectures for a few years now - not regularly, not ritualized, but when I come across a topic that I feel is worth listening to more closely. What strikes me is that her arguments are calm, structured and largely non-ideological.

This does not make her lectures spectacular in the media sense, but they are sustainable. You can listen to her for a long time without getting the feeling that she is trying to sell a ready-made world view. Especially at a time when political debates are often morally charged or emotionally truncated, this way of speaking seems almost old-fashioned. In the best sense of the word.

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Reach is not ownership - Why visibility is no longer enough today

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Reach vs. ownership

A good ten years ago, I happened to watch a lecture on the transition from the information society to the knowledge society. At the time, much of it still sounded theoretical, almost academic. It was about concepts such as data sovereignty, ownership of information and the question of who will actually determine what is accessible in the future - and what is not. Today, with a little distance, this lecture seems surprisingly precise. After all, much of what was described as a development back then has now become reality. More and more data has migrated to the cloud. More and more information is no longer stored on in-house systems, but in external infrastructures. And increasingly, it is no longer the user but a provider, a platform or a set of rules that decides what is possible.

To understand this development, it is worth taking a step back. The information society in which many of us grew up was not a normal state. It was a historical exception.

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Game theory explains 25 years of geopolitics: How Europe lost its strategic role

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Game theory explains 25 years of geopolitics

For many, game theory sounds like dry mathematics, like formulas, like something that only plays a role in lectures or business games. In reality, however, it is an ancient thinking tool that existed long before its academic formalization. Diplomats used it, commanders used it, captains of industry used it - long before it was even called that. In the end, it is nothing more than a sober question:

„When several players have to make decisions in an uncertain situation - what options do they have and what are the consequences?“

This kind of thinking has become surprisingly rare today. Instead of analyzing alternatives, much is narrowed down to moral narratives or spontaneous interpretations. Yet in geopolitical issues in particular, a clear analysis of the possibilities would be the foundation of any mature policy. It is precisely this old craft that I would like to take up again in this article.

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Cloud AI as head teacher: why the future of work lies with local AI

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Cloud AI becomes the head teacher

When the large language models began their triumphal march a few years ago, they almost seemed like a return to the old virtues of technology: a tool that does what it is told. A tool that serves the user, not the other way around. The first versions - from GPT-3 to GPT-4 - had weaknesses, yes, but they were amazingly helpful. They explained, analyzed, formulated and solved tasks. And they did this largely without pedagogical ballast.

You talked to these models as if you were talking to an erudite employee who sometimes got lost, but basically just worked. Anyone who wrote creative texts, generated program code or produced longer analyses back then experienced how smoothly it went. There was a feeling of freedom, of an open creative space, of technology that supported people instead of correcting them.

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Permanent crisis as a normal state: How narratives distort our perception

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Permanent crisis, narratives

It's strange how certain developments creep up quietly and only reveal their full impact in retrospect. When I think about how I perceive the news today, I realize that my approach to it changed fundamentally more than twenty years ago. Since the turn of the millennium, I have hardly watched any traditional television news. It was never a conscious decision against something - more a gradual growing out of it. At some point, I simply realized that the daily bombardment of alternating doomsday scenarios was neither improving my life nor making my vision clearer.

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