Urban Hierarchy of 590 cities (1950-2050)

"The visualization depicts the world's 590 most populous cities, sorted column by column according to their population size between 1950 and 2010, with projections for 2015, 2020, 2025, and 2050" (via PD Smith)

I look at this chart and I think of demographic transition.... and huge Chinese internal migration

Related Links:

• the reordering of Urban Hierarchy in the US
• 5th stage of the Demographic Transition (?)