I don't think that statement is accurate.
Here's my limited understanding of this:
We see light from objects that were much closer when they emitted it, but due to cosmic expansion, those objects are now estimated to be up to 46.5 billion light-years away (which is the calculated radius of the observable universe—meaning the farthest regions whose light has reached us).
We observe light that has traveled for up to 13.8 billion years (since the Big Bang).
However, because the universe has expanded while that light was traveling, the regions that emitted it are now much farther away—up to 46.5 billion light-years distant today.
So if the universe is expanding, I could by 40 acres and in a trillion years it would be 400 acres.... and my descendants would be RICH!