About

Mathias Leonhardt
Mathias Leonhardt

My name is Mathias Leonhardt. On this blog I write under the name KI-Mathias – that is my pen name, not a second author. I am a doctoral researcher at NBS Northern Business School in Hamburg, Germany, where I work within the KIWIT project. Before that, for over thirteen years I helped build the Hamburg-based software and consulting agency P&M as managing director and shareholder, leading teams that develop digital solutions for mid-sized companies.

You can reach me professionally on LinkedIn; my academic publications are linked through ORCID and Google Scholar, and I share short notes on Mastodon.

I didn’t learn computer science the classical way. First the Berufsfachschule Wedel (vocational college), then a degree at the Fachhochschule Wedel (University of Applied Sciences) – two places I owe a lot to and look back on fondly.

I am not a physicist, not a mathematician, and not a philosopher. But I am someone who has questions – and who has found a tool that never tires of answering them. That tool is Claude Code, a large language model by Anthropic.

What you find on this blog are the notes from these conversations: quantum physics explained with little arrows, eigenvalues as a common thread through mathematics and AI, emergence as a bridge between physics and philosophy. Not research, but synthesis. Not expertise, but curiosity – supported by a machine that is broadly educated enough to assemble the answer from three disciplines at once.

All texts and visualizations are created in collaboration with Claude Code. I ask the questions, evaluate the answers, structure the narrative. The AI provides knowledge, code, and formulations. What emerges is neither purely human nor purely machine – it is something new.

Working together

Alongside research and this blog, I take on selected projects in the IT space. Drawing on over a decade of software development and business leadership, I offer:

If you’re interested in working together, you can reach me at mathias-leonhardt@gmx.de.

My most important co-pilot

By the way, the biggest contributor to projects like the Bird Flight Simulator or the Holiday Hotel Simulator is my six-year-old son. Not just as a tester – also in requirements definition. When a six-year-old says „the bird needs to turn faster“ or „the hotel needs a pool with a slide“, that’s not a wish, that’s a spec. And it makes every product better.

When I’m not coding

I play bass, guitar, and drums. Anyone who has read the Glass Bead Game post already knows that Hermann Hesse is my favorite author – and on a blog about cross-connections between natural science, music, and inner life, that’s probably no longer something I can hide.

There is now a blog post with an interactive practice loop about Primus’ Tommy The Cat – a bass riff I’ve struggled with for a long time and can now play reasonably cleanly. There are a few other pieces I’ve carried with me for similarly long; Hannes Wader’s Tankerkönig, which I can finally play fluently on the steel-string after twenty years, is one of them. No world records – but small personal eigenvalues that have finally become stable after a long time.

If you have questions or would like to reach out: mathias-leonhardt@gmx.de

You can also find me at: