The fluctuations we see in the background glow now were actually incredibly small perturbations in the fabric of space, at the time of inflation, which got stretched by inflation to macroscopic size.

我们现在在背景光中看到的波动实际上是空间结构中十分细小的扰动，膨胀时，它就会被拉伸到肉眼可见的宏观大小。