Evidence and limits
Finding: Long-term memory requires information extraction, multi-session reasoning, temporal reasoning, knowledge updates, and abstention. Evaluated systems showed substantial degradation across sustained interactions.
Impact: Strengthen update, temporal, and abstention tests in the memory exam. Reject recall accuracy or context length as sufficient memory evidence.
Boundary: The histories and questions are benchmark constructs and do not test authority, provenance, or repository custody. Next: how should correction survival and source precedence be evaluated alongside these abilities?
Flags: generated histories; benchmark and model-judge dependence
Record State: Catalog review recorded; not a performance endorsement
What was reviewed: Structure and relevance screened; not a full evaluation