Here again we see the two familiar lessons. First, that some difficulties that require more effort and slow down apparent gains—like spacing, interleaving, and mixing up practice—will feel less productive at the time but will more than compensate for that by making the learning stronger, precise, and enduring. Second, that our judgments of what learning strategies work best for us are often mistaken, colored by illusions of mastery.
When it comes to learning and mastery, slow and steady wins the race. Deep Knowledge is what makes brilliant minds. Similar to the story of the hare and tortoise.
