What the brain surgeons discovered about the two hemispheres of the brain tells us that the First World is left hemisphere, and the Third World is right hemisphere. For decades I have been trying to expound the difference in terms of the eye and the ear orientation of cultures. The Greeks and the Romans gave special salience to the eye via the phonetic alphabet and the invention of Euclidean space. With the alphabet, the lineal and connected character of space became apparent to literate man alone. The “barbarians” went on living in acoustic space, in a world dominated by oral culture. Logic belongs to the left hemisphere alone, but the simultaneous world of the right hemisphere is given new dominance be the electric information environment. This fact is not known to the hemisphere analysts.
Letter to Mike Gravel, January 17, 1977, in Letters of Marshall McLuhan (1987) p 526
Year: 1977
Chapter:
Hemispheres of the Brain
Compiled by William Kuhns
© 2026, The Estate of Marshall McLuhan
© 2026, The Estate of Marshall McLuhan