The mechanistic ontology problem is the warring curves problem.

A mechanistic ontology isn't fuzzy, it's hard.

In order to be precise it has to be fractally complicated.

That fractal complication gives you the cursed curve of logarithmic returns for exponential effort.

An LLM is fuzzy so it can be precise without going into nearly as much fractal precise detail.

LLMs allow you to skip the ontology problem because they can apply human-caliber judgment to handle fuzziness on demand.