Hey, they started with millimeters so any additional info is kinda passable (in my books) as a visual / imagination stimulus.

Sometimes it can be really helpful, like with the distance from Earth to Moon, almost 385 000 km — that’s yeah, a lot, this gives the facts.

..but, when I found out that all the planets from our solar system packed next to each other would fit into this gap with some space to spare — this gives the perspective.