nx_physics_ladder.nx

nx_physics_ladder.nx -- GENEALOGIST physics-limit grading: how close is the sovereign hash get to the PHYSICS FLOOR? Operator telos: S-class exceed graded on ABSENT->EXISTS->EXCEEDS->NEAR-PHYSICS->PHYSICS- OPTIMUM, not just "beats sqlite". For a key->value lookup the irreducible physics limit is MEMORY-ACCESS LATENCY: you cannot find a value faster than touching the memory that holds it. This measures the real floors on THIS hardware with a dependent pointer-chase (the canonical memory-latency benchmark -- each load's address depends on the previous load, defeating prefetch/OOO so we measure latency, not bandwidth) at two working-set sizes: cache-resident (256KB) and DRAM-resident (64MB > LLC). Then it measures the sovereign hash get and places it on the maturity ladder vs those physics floors. Honest: a lookup must do >=1 random memory access; being at ~1 access = PHYSICS-OPTIMUM (irreducible). No hw writes (Rule 26). expect_exit: 0 license_tier: ORIGINAL