Abel Jansma
npub13tlmxlnkeuj53v7knaa3jrccpd3jwjl5ewmuev4vlh84ly9ap8msgchj5x@drss.io
Abel Jansma is a scientist studying emergence, higher-order interactions, information theory, and complex systems across biology and artificial intelligence.
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Truth is not a direction: a Tarski attack on LLM probes
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10 Jul 2026
*A diagonal attack for LLM truth probes shows why no probe on a language model’s embedding space can pin down truth.*  ## A linear
A short koan about the spider Oza
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28 Oct 2025
A rabbi asked the wise spider Oza: “Tell me, why is there something rather than nothing?” Oza: “you are confused—both are: the something in that it is, and the nothing in that it
A Möbius inversion theorem for modules and vector spaces
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28 Jan 2025
In a [previous post](https://abeljansma.nl/2025/01/28/mereoPhysics.html), I proposed to study complex systems through a mereological lens by applying the Möbius inversion theorem. This has become my
The Encyclopedia of Mobius Inversions in the Sciences
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28 Jan 2025
In a [recent paper](https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.7.023016), I proposed to study complex systems through a mereological lens by applying the Möbius inversion
Complex Systems and Quantitative Mereology
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28 Jan 2025
Have a look at these three rings:  Why are they connected? If you only consider two of the rings and ignore the third,
Möbius Functions on Powerset Antichains
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9 Feb 2024
UPDATE: I have now found an explicit formula for the Möbius function on the redundancy lattice. This will appear in a preprint soon.
Introducing: Stator
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21 Dec 2023
In my PhD thesis, I developed a method and software package to infer interactions and cell states from gene expression data. Both the software and the research are now published!
A simple origami swallow
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2 Sep 2023
I was completely mesmerised by the swallows in Portugal, and while playing around with some origami paper, I came up with this simple design for an origami swallow. It is based on the famous ‘crane
The do-calculus of sampling from restricted Boltzmann machines
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9 Jan 2023
Generative models, in particular energy-based models, are often used to sample from conditional distributions–a process known as inpainting. One of the most fundamental kinds of generative
Using the Open Game engine to model MEV
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15 Dec 2022
(This is an update on my Ethereum Protocol Fellowship. More updates can be found here ).