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What is the use of having countless books and libraries, whose titles their owners can scarcely read through in a whole lifetime? The learner is not instructed, but burdened by the mass of them.
Another example of a mental model is Opportunity Cost, which is the value of the choice of a best alternati…
…tless books and libraries, whose titles their owners can scarcely read through in a whole lifetime? The learner is not instructed, but burdened by the mass of them.