Some experiments made by bool intersect fractals formulas with meshes.
The result is an object with almost infinite resolution, if you zoom in, there's no end.
Formulas used here are from our Octane Vectron pack 2 available here:

https://www.machina-infinitum.com/vectron-formulas

Skeleton mesh in combination with "Folding Brot" 3D fractal formula.

Mixpinski fractal here

The same Mixpinski fractal, but with more detail

Close up of the "heart".The fractal is really endless, no cheating was used here.