Here is our world divided equally into territories of about 10m people, with existing boundaries taken into account.
"The logic of the map does not entirely discount existing ethnic or national boundaries, but neither is it beholden to them. The particular political rationale behind these divisions is not addressed – whether these are independent nation-states or provinces of a world government is left to the imagine of the viewer. The map is rather meant to provide a visual representative of the radically unequal distribution of the world’s population."
Zoom in: Pacific Rim, south-east Asia, the subcontinent, western Europe. [via MeFi]