Not just using spaced repetition, but engineering the knowledge to be useful: http://t.co/SPfdNDjzBE
miniblog.
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Using spaced repetition apps with 1Password to help you memorise passwords without storing them in plaintext: https://boinkor.net/2018/11/memorizing-passwords-with-anki-1password/
Cute idea, although ideally a password manager minimises the memorisation necessary. It's a nice example of composing apps though.
Memorising passwords via spaced repetition: https://news.ycombinator.com/item?id=7722863 Not sure if it's ingenious or an indictment of password inconvenience.