Contributed by Pavan Srinath
Cross-posted on Catalyst, with more detailed analysis.
* Time for some wonkish gyaan. People normally tend to describe any superlinear growth as “exponential”. However, that is incorrect. Exponential growth is one that follows a particular formula, like this one.
Here, we see that the growth in toilets in a particular time period is proportional to the number of toilets at the beginning of the time period. So the growth of toilets can be described by the following equation, which as you can see represents exponential growth.