"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
11 The early impact of the prototype mnemonic medium13 The early impact of the prototype mnemonic mediumThe early impact of the prototype mnemonic mediumHow can we develop transformative tools for thought？2020-10-18Journal
Another way of looking at the data from this informal experiment is to ask which users saw improved or unchanged performance, and which saw their performance get worse. In fact, every single user (100%) who reviewed cards on the regular schedule saw their performance either stay the same or improve. By contrast, 40% of the users whose reviews were delayed saw their performance get worse, while 60% saw it stay the same or improve.
These are small-but-promising results. Of course, our experiment was only done over two weeks, and we'd expect larger effects in experiments done over longer periods. And, as already mentioned, the effect is likely diminished by overlaps between the cards. Nonetheless, this informal experiment again suggests the mnemonic medium is helping people's memory, and suggests more comprehensive studies.