"Most interestingly, he articulates the concept of “expert ignorance.” While specific facts are no longer are at the author’s grasp years after publication, the author’s increasingly stylized view of the central argument (“synthetic ignorance”) may not be readily apparent to others (186)."
(via Y u no cite me? | orgtheory.net)
Andrew Abbott, “Varieties of Ignorance,” American Sociologist, 41. pp. 172-189.