The new environment of simultaneous and 
diversified information creates acoustic man. He is 
surrounded by sound—from behind, from the side, 
from above. His environment is made up of 
information in all kinds of simultaneous forms, 
and he puts on this electrical environment as we 
put on our clothes, or as the fish puts on water. 

Marshall McLuhan, “McLuhan Probes,” Marshall  
McLuhan: The Man and His Message , (Golden, 
1989), p. 219.