…on the overall pattern of social life, we are retribalizing, after centuries of detribalizing; and that whereas we achieved detribalization by literacy and segmental analysis of all thought, action and production, we are accomplishing our retribalization by the simultaneous, the electronic, which tends to put us in a kind of auditory world, or field, of simultaneous sound in which the Intuitive Man takes over from the Analytic Man.
Letter to Edward S. Morgan, May 16, 1959, in Letters of Marshall McLuhan (1987), p 255