From the YouTube description: “There are lots of ways to compare a million to a billion, but most of them use volume. And I think that’s a mistake, because volume just isn’t something the human brain is great at. So instead, here’s the difference between a million and a billion, in a more one-dimensional way: distance.”
The video is more than an hour long, which is the point. In the last minute of the video, he mentions what a trillion would be in the same scenario.