Interesting exercise! Some pointers to related ideas: https://en.m.wikipedia.org/wiki/Persistent_data_structure https://en.m.wikipedia.org/wiki/Persistent_dat

Interesting exercise! Some pointers to related ideas: https://en.m.wikipedia.org/wiki/Persistent_data_structure https://en.m.wikipedia.org/wiki/Persistent_data_structure - https://docs.datomic.com/cloud/index.html https://docs.datomic.com/cloud/index.html - https://opencrux.com/ https://opencrux.com/ - https://github.com/attic-labs/noms https://github.com/attic-labs/noms - https://researcher.watson.ibm.com/researcher/files/us-leejinho/Multiversion_support_for_property_graph_databases___BigData_2017.pdf https://researcher.watson.ibm.com/researcher/files/us-leejin...