Status: IN
Temporal state management in the GoF preserves encapsulation through two complementary mechanisms operating at different visibility levels: State makes transitions explicit and atomic via single-variable rebinding (externally visible state-object swap), while Memento captures internal state opaquely (externally invisible through narrow interface) — together ensuring temporal operations maintain encapsulation whether the concern is transition control or state recovery.
State and Memento achieve temporal encapsulation through complementary transparency and opacity
Depends on (SL): gof-state-transitions-explicit-atomic, memento-captures-state-preserving-encapsulation