Memorizing information with spaced repetition is worthwhile if it saves you more than 5 minutes of lookup time or prevents more than 5 minutes of loss over your lifetime.
The key rule for deciding what to memorize is if you will spend more than 5 minutes looking something up over your lifetime or lose more than 5 minutes due to not knowing it.
| Text | The key rule of thumb that lets us decide what to learn and what to forget: If, over your lifetime, you will spend more than 5 minutes looking something up or will lose more than this many minutes as a result of not knowing something, then it’s worthwhile to memorize it with spaced repetition. is the line that divides trivia from useful data. |
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