I think the point is the nonlinearity of speed as a function of the number of cars, i.e., "Charging for something reduced use by 20%, and overuse-related probl

I think the point is the nonlinearity of speed as a function of the number of cars, i.e., "Charging for something reduced use by 20%, and overuse-related problems by 95%" "WOW! Why don't more people do that?"