What would happen if the galaxies did not existed?

Answer 1

If galaxies did not exist, the universe would be vastly different, lacking the large-scale structures that host stars, planets, and potentially life. Matter would be more uniformly distributed, leading to a much less dynamic universe with fewer gravitational interactions. The absence of galaxies would also mean no formation of elements through stellar processes, significantly affecting the chemical diversity necessary for life as we know it. Overall, the cosmos would be a much simpler and less interesting place.