Wozniak is incredible, it saddens me that SuperMemo will probably drift into obscurity due to being closed source and the chances of seeing its source code drift away day by day, it took a few years to get anything beyond IE support after that died.
I wish to see a FOSS incremental reading application in the very least, such an underrated concept.
There is some progress in open source implementations. Anki originally used a SuperMemo-2 implementation, it now uses the improved FSRS algorithm. There is also an incremental reading addon.
It's a fairly opinionated space, which is surprising since there is good data. But regardless, SuperMemo, FSRS, both work, you will make progress with either. People can just pick either and get started.
I used to dabble in the sleep space since my circadian rhythm is shot anyway.
But the self reporting aspects of the “data” always made me suspicious. People in certain phases of sleep dep, hypoxia, or a number of other debilitating events don’t know they’re experiencing symptoms until someone else tells them they are. That’s why you’re trained to look for signs in others.
So I am sorry but I don’t trust you if you tell me you feel great on four hours of sleep a day. Let’s do a task or a test and see if you can brain or you’re just euphoric.
There was a HN post a few months ago, [sadly I can't find it] which correlated healthy sleep with faster card answering times in Anki.
I haven't used Supermemo, but believe it has fairly strong sleep tracking capabilities.
I've dabbled about doing the same in AnkiDroid. We could pull data from Android Health, and do something interesting with it, but we've got hundreds of other things to do, Google will probably pull our app from the Play Store if we request health data, and it at the moment it's a little out-of-scope and would be better for an addon using our API
I complained on that one about how repeating tests like this usually results in better answers over time so the fact the author saw the same results may mean no negative effects, or just very slow decline. Which tells us something interesting but doesn’t mean it’s necessarily harmless.
You have to be careful and spread your tests over a bunch of subjects to find the patterns.
