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Re:I No Longer Tell My Friends about Anki/SuperMemo by AstralStorm on Sunday November 01, 2020 @07:28AM (#24959001)
And you have used hours of training on a thing used once every blue moon.

Congratulations, I guess?

Generally something is worth optimizing it this much when you're going to use it more than 10 times. Insert obligatory xkcd chart here: https://xkcd.com/1205/

There are things that are this useful, but they're generally in category of mathematics, potentially physics, chemistry or linguistics.

Learning parameters of a shell command, especially all of them, is a waste. Learn useful things first.

This is the main problem SuperMemo and Anki sets face, the ordering is by difficulty only and not by product of difficulty times usefulness.

Re:I No Longer Tell My Friends about Anki/SuperMemo by istjohn on Sunday November 01, 2020 @11:21AM (#24960451)
Someone calculated they expect to spend a total of around 5 minutes over their entire life studying each new Anki card. That's not such a high bar for inclusion. Spaced repetition is very efficient. Of course, it's still not reasonable to memorize entire man pages.