Status: IN
Memento's incremental delta optimization (storing only changes between consecutive checkpoints rather than full state snapshots) and copy-on-write Proxy's deferred copying share a common design principle: defer the cost of full state duplication by tracking only what has changed, applying this principle independently in the temporal domain (Memento's sequential undo checkpoints) and the spatial domain (Proxy's shared-until-modified objects).
Memento incremental deltas and copy-on-write Proxy share the defer-duplication-until-necessary principle
Depends on (SL): memento-incremental-when-predictable-sequence, copy-on-write-proxy-optimization