Development does not preserve identity by keeping material structure unchanged.
Living systems undergo continual material turnover, growth, differentiation, repair, and reorganisation.
What persists is not identical matter, but organised continuity.
In APS, developmental continuity is therefore understood as the persistence of viability-oriented organisation across material change.
A developing system remains continuous because its processes remain sufficiently coordinated to preserve viable organisation through transformation.
Development is not the construction of a fixed object.
It is the ongoing reorganisation of living continuity across changing material conditions.
Key point: developmental identity depends on organised continuity, not material sameness.