On Deep Work

I believe that useful work, of lasting value to oneself and others, comes from uninterrupted concentration. Intuitively it makes sense - imaging working on a complex task, requiring you to hold many pieces of information in your mind simultaneously in order to produce a result, something common in knowledge fields. When you are interrupted, such as by an instant message or some other notification, your attention on the main task is lost, some new context is loaded into your memory as necessary to deal with processing the distraction, and by the time you resume the main task, it becomes harder to recall the pieces of information you were holding in your memory earlier.