So in our model we can now measure neglect, and novelty. Novelty will be lower, the longer you spend on one task. Neglect (of other tasks) will be high for the same reason. Those unloved tasks will drive up the neglect score, and lower the novelty score, until you share out the attention a little.

Keeping neglect and boredom low, while you keep novelty high, you won’t be able to keep efficiency up.