But you see, as time goes on in gigayears at the bottom, you will see structures evolve as gravity feeds on small, dense irregularities, and structures develop.
你可以看到，底部显示的时间以十亿年为单位， 随着引力逐渐作用于细微的不均匀密度分布， 空间物质结构缓慢地演化出来。