…should be guarded aggressively, even if it’s just an hour of uninterrupted time per day. I know people who thrive in environments where there are constant interruptions (I am not one of these people…), but I’ve noticed that they also make time to get their work done.

This could mean no phone calls scheduled after 10am and before 4pm or all notifications being turned off when writing, but there should be some time carved out every day for producing and synthesis.