Do What Steve Jobs Did, Not What He Said - Cal Newport

In Ericsson’s seminal 1993 paper on the topic, titled “The Role of Deliberate Practice in the Acquisition of Expert Performance,” he dedicates a section to reviewing what the research literature reveals about an individual’s capacity for cognitively demanding work. Ericsson notes that for a novice, somewhere around an hour a day of intense concentration seems to be a limit, while for experts this number can expand to as many as four hours — but rarely more.

Marshall was more effective at his job because of his ability to focus on important issues — giving each full attention before moving on to the next. If he had instead accepted the status quo of the War Department operation, with sixty officers pulling him into their decision making and hundreds of commands looking for his approval on routine activity, he would have fallen into the frantic and predictably busy whirlwind familiar to most managers, and this almost certainly would have harmed his performance. Indeed, if something like a hyperactive hive mind workflow had persisted in the 1940s War Department, we might have even lost the war.

If you want to love what you do, abandon the passion mindset (“what can the world offer me?”) and instead adopt the craftsman mindset (“what can I offer the world?”).