In InnerSpace, an aedificium (plural: aedificia, adjective: aedificial) is any object, structure, or action deliberately created or performed by human agency that requires specialized knowledge, skill, or technique for its realization.
An aedificium marks the threshold of intentional construction: the point at which raw material, gesture, or process is shaped by learned competence rather than instinct or accident. All buildings, machines, works of art, all performed medical surgeries, all human generated objects and actions, with a purpose and requiring special skills and knowledge are aedificia.
All higher categories presuppose the aedificium.
