Folding the sheet in half, you'll see how the two points of space connect.

将纸对折，你会看到空间中的两点是如何连接的。

Why does it look the same at all points of space and in all directions?

为什么它在空间的所有点和所有方向看起来都一样？

The universe would therefore look roughly the same at all times as well as at all points of space.

因此，宇宙在所有时间以及空间的所有点上看起来都大致相同。

And just as with two dimensions, every point of space that we see moving around is really just a proxy for a vector who has its tip at that point.

就像在二维空间中一样 我们看到的每一个移动的空间点实际上都是一个端点在这一点的向量的代表。