Status: IN
Symmetric domains combine two independent correctness properties: the write-read lifecycle is structurally correct (bidirectional symmetry supports complete routing, active reads converge state), and temporal gaps are contained by forward-only design that prevents gap-induced regression — together these close both structural and temporal correctness concerns in these domains.
most domains have either structural or temporal correctness gaps; symmetric domains close both, making them the architecture's correctness ceiling
Depends on (SL): write-read-lifecycle-is-correct-in-symmetric-domains, forward-only-preserves-correctness-despite-accepted-gaps