"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
4 Introducing the mnemonic medium6 Introducing the mnemonic mediumIntroducing the mnemonic mediumHow can we develop transformative tools for thought？2020-10-18Journal
Note that this interaction occurs within the text of the essay itself. Here's a zoomed-out view, so you can see how such questions are surrounded by essay text both above and below:
Screenshot depicting the interactive quiz interleaved in a few paragraphs of prose.
We use the term cards for these interface elements pairing questions and answers.
Of course, for long-term memory it's not enough for users to be tested just once on their recall. Instead, a few days after first reading the essay, the user receives an email asking them to sign into a review session. In that review session they're tested again, in a manner similar to what was shown above. Then, through repeated review sessions in the days and weeks ahead, people consolidate the answers to those questions into their long-term memory.