What about points below and above the PPF? A point like F would be wonderful for our student. She could spend all her time having fun and still have a 4.0 GPA. Such points are only available at major party schools. Students at such schools are unlikely to be using this site:)

   A point like G indicates that time is being wasted in activities that are neither fun nor that help GPA, say spacing out while at the library. At G the opportunity cost of grade points in terms of fun is zero; meaning, it's possible to have more of both (more on this later).

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