Another GIS-er here. Your comment made me think about the modifiable areal unit problem: https://en.wikipedia.org/wiki/Modifiable_areal_unit_problem https://en.

Another GIS-er here. Your comment made me think about the modifiable areal unit problem: https://en.wikipedia.org/wiki/Modifiable_areal_unit_problem https://en.wikipedia.org/wiki/Modifiable_areal_unit_problem The coastline paradox and MAU effectively seem to be of the same class, i.e., change the rules for your measurement and you get different results. This hadn't occurred to me before. I wonder if there's other similar?