The field in one map

Map lesson: one billing project runs forty sessions and proposes 58 facts. Thirty-four stay current, 11 were written and then replaced, 13 were dropped at the gate — so 24 of 58 proposals (41.4%) never became a current fact. Four families answer that differently: curated files (3,575 characters, 57 slots, nothing queried), vector stores (no validity field, so 11 of 45 statements cannot be marked replaced), temporal graphs (90 date fields to extract), and write pipelines (174 stage calls). Place each family on its axis and find the number that binds first.

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