Oliver Hahn

Writing

Sep 2026

What changes in normal human brain aging ↗

284 human brains echo our mouse atlas: microglia and other glia change most with age, especially in white matter.

Jul 2026

Biology has to be able to answer back ↗

AI in biology needs causal tests in living systems. We read them, write changes into them, and reason over results.

Apr 2026

What my Paperpile library says about me ↗

I pointed Claude Code at my 2,052 saved papers. It found my forgotten PhD project on cardiolipin.

Apr 2026

First unlock from vibe science: public datasets ↗

AI agents make public data usable fast. I combined 107,219 perturbations from 5 Perturb-seq sources into one collection.

Apr 2026

Computational biology is the quiet AI win ↗

Computational biology is where AI is doing the most for science right now, more than hypothesis generators or lab robots.

2018

DNA methylation dynamics in murine ageing and longevity (PhD thesis abstract, University of Cologne) ↗

My PhD on how DNA methylation changes with aging, dietary restriction and longevity in mice.