Cal Newport, To Cure Burnout, Embrace Seasonality:
The problem with the virtual factory, however, goes beyond the fact that it makes us unhappy. It’s also ineffective. The process of producing value with the human brain — the foundational activity of many knowledge sector roles — cannot be forced into a regular, unvarying schedule. Intense periods of cognition must be followed by quieter periods of mental rejuvenation. Energized creative breakthroughs must be supported by the slower incubation of new ideas.