Answer: Swedish astronomer, Carl Charlier.
In the 20th century, Charlier developed a cosmological model that described the cosmos as an intricate system, arranged hierarchically. According to Charlier, the cosmos is arranged in scales that grow larger as each cluster is arranged. The model supports the existence of a Multiverse of which our galaxy, the Milky Way, is a part.
According to this model, galaxies appear clustered together, increasing in size.