The modern philosopher Jean-Jacques Rousseau formulated a simple model of population growth for eighteenth-century England based on the following assumptions:
The birthrate in London is less than that in rural England. The death rate in London is greater than that in rural England. As England industrializes, more and more people migrate from the countryside to London.
Rousseau then reasoned that because London's birthrate was lower and its death rate higher and rural people tend to migrate there, the population of England would eventually decline to zero. Criticize Rousseau's conclusion.