Theory predicts that you ' d have to go out hundreds of millions of light - years , where matter is spread randomly rather than finely structured , before the overall expansion should outgun localized motions 理论预测，在整体膨胀的效应大于区域空间的局部运动之前，我们便已经到达数十亿光年以外的地方，在那里，物质并未形成紧密的结构，而是随意四散。
