I do not move along lines. I use points like the dots 
in a wirephoto. That is why I must repeat and 
repeat my points. Again, insights are not points of 
view. I do not have a point of view on anything. I am 
interested only in modalities and processes. . . . My 
main theme is the extension of the nervous system 
in the electric age and thus the complete break with 
5000 years of mechanical technology. This I state 
over and over again. I do not say whether this is a 
good or bad thing. To do so would be meaningless 
and arrogant.

Marshall McLuhan to Robert Fulford, June 1, 1964, 
Letters of Marshall McLuhan , (Toronto, 1987), p. 300.