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> This dynamic works because unlike pre industrial malthusian times, cities do not rely on birthrates for population growth. The same was true in pre-industria
by xyzzyz 5y ago
> This dynamic works because unlike pre industrial malthusian times, cities do not rely on birthrates for population growth.
The same was true in pre-industrial times too. The cities have always been population sinks, and failed to reproduce naturally. They have always been supplied by the constant stream of people from countryside.
- ummwhat 5y agoI forget exactly when this happened or which data set it's in, but at some point sanitation and medicine got good enough that cities aren't a population sink per se. They can have around equilibrium birth rates.