Answer:
memory of material is better when we think deeply and connect new information with information we already have
Step-by-step explanation:
When a person learns something this creates a set of connections of brain cells. If the thing that the person learnt is not used repeatedly then the memory is replaced by new memory.
Here, Dr. Quincy already has learnt what he had set out to there is nothing theoretical left to learn. When he learns something new he connects it to his past knowledge this helps to keep the memory of what he has learnt and at the same time learns new things.