Marriage between Nature and City
We find that our settlements grow at the rate of 2 percent per year in terms of population and about 3 to 4 percent in terms of surface, because people get higher incomes, more machines, and move out into the countryside. In this way, the polis turns into a dynapolis,(Ref. 1) a multi-centered city whose centers are subject to expansion, increased pressures, or both, rather than a static city.
From International Wildlife, v.4, no.1, January - February 1974, p. 4-11