The trouble with Ac was border relations.
Citizens were consumed (some might say subsumed) by geometry.
Ac refused the plane.
By which is meant: The field of their neighboring countries did not necessarily exist, but may be allowed to function - for a time.
The unacknowledgment of neighboring spaces based on one dimensionality appeared to be a sound argument. The acoustics of it may be right, but the translation of it rendered impossible - only Acitizens spoke the language of acoustical geometry and nobody along their borders comprehended.