AndyMatuschak

DigitalGardener

https://andymatuschak.org/

Running his own research fellowship : https://notes.andymatuschak.org/Research_fellowship

Is behind Orbit (https://withorbit.com/)

As you read, Orbit occasionally prompts you with quick questions to reinforce the ideas you’ve just seen. Memory fades, so after a few days, Orbit will send you an email inviting you to quickly review the text’s questions. If you still remember an answer, you’ll next see it two weeks later. Then a month after that, then two months, and so on. If you forget an answer, the schedule contracts to reinforce that question.