For decades, cosmologists have wondered if the large-scale structure of the universe is a fractal: if it looks the same no matter the scale. And the answer is: no, not really. But in some ways, yes.

Fractal geometry introduces a paradigm in which spacetime exhibits scale-dependent structure characterised by non-integer dimensions. In quantum cosmology, such structures arise naturally when ...

The “coastline paradox” helped to define fractals, but coastlines themselves turn out to be less fractal than thought ...