Woz goes into detail about the SM-17 algorithm here: https://supermemo.guru/wiki/Algorithm_SM-17 https://supermemo.guru/wiki/Algorithm_SM-17 ... he's built the

Woz goes into detail about the SM-17 algorithm here: https://supermemo.guru/wiki/Algorithm_SM-17 https://supermemo.guru/wiki/Algorithm_SM-17 ... he's built these through decades of thinking of and tinkering and working on this singular problem. SM-2 is from 1987 for SM for DOS 1.0, and is fairly simplistic comparatively.