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# Reproducible state reconstruction

Reproducible state reconstruction means rebuilding complete state from raw observations alone. If the database is lost, replay reconstructs the same state deterministically.

## Before vs after

Before: restoring requires uncertain backups and manual reconciliation. After: replay up to timestamp T recreates state at T exactly, then replay to present restores current state.

\# Verify timeline events are available
neotoma timeline list

# Recompute and verify snapshots
neotoma entities list --type task --limit 20

This depends on [replayable timeline](/replayable-timeline), [deterministic state evolution](/deterministic-state-evolution), and [auditable change log](/auditable-change-log).