Capacity is the space in which possibility can answer need.
Why this term exists
Possibility alone cannot answer need. Capacity names the dynamic state that makes an answer functional without dissolving system coherence.
Definition in the system
The space in which possibility can answer need without loss of system coherence.
Canonical boundary / operational note
Capacity is not a fixed value or constant. It is a dynamic state determined by the relation between required and available resources, and by the Tempo and Takt of the process.