u/Graythomasj

I have a question. If we consider the universe to have formed from a singularity into what it is now, why is it that we have collisions in space.

Surely if all of the energy from the Big Bang was pushing away from its original point, in a complete vacuum it would be expanding evenly into an infinite void and therefor not be making contact with itself, even on a molecular level.

If I throw a water balloon on the ground and it explodes outwards, the droplets of water that fling away from it don’t make contact with other droplets until another force come into play (physical, air resistance or gravitational)

I’m sure there is a reasonable explanation but I’m just curious what it is.