SimpleComplexOrganized

(Weaver, 1948), 1948, later quoted by J. Jacobs (Jacobs, 1961),notoriously distinguished in Nature three types of phenomenon: simple, complex/disorganized, and complex/organized.

—https://pureportal.strath.ac.uk/files-asset/46567883/Porta_etal_PURPLSOC_2015_The_production_of_cities_Christopher_Alexander_and_the_problem.pdf

The ultimate in beauty is when an amazingly complex form is found to have a simple and elegant description.