Development does not unfold according to uniform external time alone.
Biological development is organised through internally coordinated temporal processes involving:
- growth
- differentiation
- regulation
- signalling
- metabolic activity
- ecological interaction
- and continuity-preserving transformation
Different developmental processes operate at different rates and timescales.
Some transitions occur rapidly.
Others require prolonged organisational reconstruction.
Developmental timing therefore depends upon the coordination of viability-oriented processes rather than simple clock duration alone.
In APS, developmental temporality refers to the organised timing relations through which living systems preserve continuity across transformation.
Developmental time is therefore biological, organisational, and process-dependent.
Key point: developmental continuity depends upon coordinated biological temporality rather than uniform external clock time alone.