It might seem strange, but it's probably right.
Think about it, the deepest part of the Pacific in the Mariana Trench is only
7-8 miles deep. The sphere shown there had a diameter 863 miles wide, but
also 863 mi "deep" or "tall". If you were to pretend it was a cube (obviously alot more volume, but lets use it for simplicity's sake) and say,
took 2 mi deep slices off (the
average depth of the pacific ocean), that would give you 430
slices that are 863mi x 863mi or approximately 320,250,670 square miles of 2 mi deep water.
Another way to visualize it is that the diameter of the earth is roughly
7926 miles
across. The deepest part of the Mariana Trench is at most 1/100th of that diameter. Really more like water spilled on a table rather than a
bucket if you think about it.
That all being said water is finite, but in terms we can understand, finite in the sense that we are able to walk completely around the globe on foot
and be able to comprehend it.
[edit on 2/10/2009 by Fiverz]
[edit on 2/10/2009 by Fiverz]