Deep focus on a project requires absolute dedication without external distractions, and disengaging completely when not working allows the subconscious to process the work effectively.

“I dedicate all of myself for that period of time, whatever it is. Whether it be 20 minutes or whether it be five hours, whatever it is, total focus, and no outside distraction whatsoever. And when I leave that process, I do my best not to think about it”