I would like to have a zoomed-in picture of that 'tiny' freshwater lakes and rivers to see its height. From this perspective, it doesn’t add up. Just above it, the Great Lakes look far bigger, not to mention other lakes and rivers in the world.
The Great Lakes span across hundreds of miles, but the deepest point is less than a quarter mile, and most of it is much shallower than that. I.e., it's a super thin film over that big surface area.
"Yes, Lake Michigan looks way bigger than this sphere, but you have to try to imagine a bubble almost 35 miles high—whereas the average depth of Lake Michigan is less than 300 feet (91 meters)"
