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THE PROOF: 10,000,000 × 768d vectors 30 GB Lance dataset on disk IVF_PQ index: 173 seconds to build (3162 partitions, 192 sub_vectors) Search p50: 5ms — at TEN MILLION vectors Search p95: 19ms HNSW at 10M would need 29 GB RAM = past the ceiling Lance at 10M = 30 GB disk, 5ms search, no RAM constraint Agent test on 500K workers: 22/22 positions filled (100%) Forklift Operator x5, Machine Operator x4, Welder x3, Loader x8, Quality Tech x2 — all via hybrid SQL+vector The architecture holds past the HNSW ceiling. Lance takes over exactly as ADR-019 designed. This is not theoretical anymore. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>