Hey how cool to see others still finding out about SuperMemo! I’ve been using it for 15 years, it’s super great, incremental reading is an awesome game changer, basically it’s like a book emulator with lots of extra features. I started making YouTube videos about it, I just uploaded three today about incremental reading: https://youtube.com/channel/UCpkWsnAPl-rhGwUOqdi2Vow