More or less exactly what I described in my PKG Chapter, although that includes AI and it's not clear that orbit does.
"As you read, Orbit occasionally prompts you with quick questions to reinforce the ideas ... after a few days, Orbit will send you an email ... If you still remember an answer, you’ll next see it two weeks later. Then a month after that, then two months... makes memory a choice...
Orbit questions can go beyond facts to probe connections, implications, causes, and consequences... prompt you to reflect or to synthesize ... "
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