Why Did The Universe Break Apart??

After the big bang the universe never collapse inward on itself, it kept
spreading out,but not in a smooth pattern Hmmmm It broke itself up
into huge chunks of mostly hydrogen gas. Logical thinking dictates one
big galaxy,and not a trillion galaxies separated by millions of light
years. This begs the question ( WHY? ) Bert PS My time lapse
theory gives the best answer so far