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See my other reply about replacing whatever was in these urban environments before with concrete, steel and asphalt.
by busterarm 6y ago
See my other reply about replacing whatever was in these urban environments before with concrete, steel and asphalt.
- criley2 6y agoA fine argument to counter with, however when we look at population density, you'll see that the vast majority of concrete, steel and asphalt goes to support a tiny fraction of the number of people. Thousands of miles of roads... to connect just thousands of rural people. Meanwhile, thousands of people can live in just a few acres in the city. Far more people per kg of asphalt and concrete! Which is the kind of efficiencies you expect with economies of scale. You'd be surprised how much asphalt and concrete we use to give every 500 person village roads and infrastructure!