(cont'd from yesterday's post)
Predictions can be made from population trends. That's what yesterday's video was about. Populations are growing in parts of Asia, and growing even faster in African cities.
By 2075 - Neither China nor Europe have cities on the "20 biggest cities" list, while the Western Hemisphere has only New York and Mexico City. African cities are huge.
If trends continue, by 2100 the largest city in the world will be Lagos, Nigeria, with maybe 88 million people which is more than twice as big as today's biggest city, Tokyo (38 million).
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