https://en.wikipedia.org/wiki/Cosmological_principle
In modern physical cosmology, the cosmological principle is the notion that the spatial distribution of matter in the universe is uniformly isotropicand homogeneous when viewed on a large enough scale, since the forces are expected to act equally throughout the universe on a large scale, and should, therefore, produce no observable inequalities in the large-scale structuring over the course of evolution of the matter field that was initially laid down by the Big Bang.
所有普世，皆為在地，
所有在地，皆為普世，
中國非中，無處非中，
在地是家，普世是家，
