"Every perception is to some degree an act of creation, and every act of memory is to some degree an act of imagination."
-- Gerald Edelman, Second Nature: Brain Science and Human Knowledge
3 Expanding the scope of memory systems: what types of understanding can they be used for？5 Expanding the scope of memory systems: what types of understanding can they be used for？Expanding the scope of memory systems: what types of understanding can they be used for？How can we develop transformative tools for thought？2020-10-18Journal
Other people have also developed ways of using memory systems for abstract, conceptual knowledge. Perhaps most prominently, the creator of the SuperMemo system, Piotr Wozniak, has written extensively about the many ingenious ways he uses memory systemsMore generally, Wozniak is, along with Sebastian Leitner, the principal pioneer of spaced-repetition memory systems. Much of Wozniak's thinking is available online at (or linked from) the remarkable SuperMemopedia.. And several other expert users of memory systems have also developed similar strategies. However, employing those strategies requires considerable skill. In practice, that skill barrier has meant these strategies are used by no more than a tiny handful of people.