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> Kind of similar to the paradox of creating and using cheat sheets, is highly likely you're accidentally learning about the subject matter in the process of writing the sheet, sometimes up to a point where the cheat sheet is not necessary anymore.

The problem is (example from mathematics): even if you are capable of deriving some formula (you thus understood the topic well), it takes a lot of time in the exam. Looking at the cheat sheet is much faster - in particular when the time is somewhat precious in the exam.



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