[QUOTE=Azélor;405605]
[QUOTE]
Growth is an exponential problem.
What does that mean? Linear growth means exponential problems?
In my experience, people are fond of discussing a city that is "X {units}" wide/long/across. The true size of the area (and the population and infrastructure costs) that must be managed is proportional to at least the square of the "city width" metric. Simple linear associations with population can often be made (Y {thing} per Z people), but people seem to look at a map with a linear scale bar and start discussing thing as though that linear distance metric relates linearly to the problems of the city. (( !@#^& city council meetings... ))