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How do we reconstruct past memory states? That's the fundamental problem.

Efficiency of storage or retrieval, reliability against loss or corruption, security against unwanted disclosure or modification are all common concerns, and the relative values assigned to these features and others motivate database design.

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> How do we reconstruct past memory states? That's the fundamental problem.

reconstructing past memory states is rarely, if ever, a requirement that needs to be accommodated in the database layer

Can you elaborate? That certainly seems to be what happens in a typical crud app. You have some model for your data which you persist so that it can be loaded later. Perhaps partially at times.

In another context perhaps you're ingesting data to be used in analytics. Which seems to fit the "reconstruct past memory stat" less.

Presumably the analysis will retrieve stored memory states from the ingestion phase to then perform useful calculation, or else why is there a database?

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