My idea is simple.
The Mandelbrot set is just the numbers that don’t diverge when the output is recycled. I see that like a filter. Then could some part of the structure of the universe be like a fractal. A filter of some equation.
I belive the filter comes from all the physical laws. The universe is shaped by the mass and energy that don’t diverge from those physical equations. That is. The universe selected energy and matter that survived its laws or truths.