Status: IN
As distribution complexity increases, the read path absorbs more correctness burden (deferred consistency, lazy computation, active repair), but the co-designed test infrastructure validates structural rather than temporal properties — the expanding read-path risk surface grows into exactly the domain that deterministic structural tests cannot cover.
Read complexity grows with distribution level and tests are scoped to structural invariants — at higher complexity, the gap between what needs testing and what can be tested widens
Depends on (SL): read-cost-scales-with-system-complexity, structural-correctness-and-testability-are-co-designed