Human thought and attention isn't fungible. I can think about my job for a certain amount of time and then my productivity plummets, I can read for pleasure for

Human thought and attention isn't fungible. I can think about my job for a certain amount of time and then my productivity plummets, I can read for pleasure for a certain amount of time before I get antsy and my mind drifts, and so on. There's no "cure" for this because humans are intrinsically capable of stepping outside of the system and imagining what else we could be doing at a given moment; getting in the zone is a way to quiet this line of thinking, but humans have a specific amount of "zone" in them and that's it.