At least it can explain the acceleration of expansion, because of attraction to surrounding A2, A3, ... without need for dark stuff, isn't that a simplification ?
I know I annoy some people here, so you please just ignore my posts.
Calimero, there is one subtle difference because my 'dynamite' snapshots are taken from a point of view outside of the explosion. Your snapshots are taken from a 'molecule' which is part of the explosion.
I mean more like trace back averages, ok this might sound confusing, let me explain.
If you have a molecular explosion like dynamite, molecules undergo turbulent motion paths. If you would take a snapshot 1 second after the explosion, and another one a little bit later to calculate the motion...