Cosmic Soup inside a Pool made of Rock
Science Fiction, perhaps:
Suppose you have a large outdoor rounded above-ground swimming pool. Inside it plonk the cosmos as far as the Hubble Telescope can take us. What would happen to the cosmic soup then? Taking into account the movements of the soup, how would it react to this 'pool' around it do you think? I would prefer to think of the pool being made of rock should anyone think more of this.
Thanks for your time.