I have read “Understanding Media : the extensions of man”, Marshall McLuhan’s masterpiece a long time ago. The medium, or process, of our time – electric technology – is reshaping and restructuring patterns of social interdependence and every aspect of our personal life. It is forcing us to reconsider and re-evaluate practically every thought, every action, and every institution formerly taken for granted. Everything is changing – you, your family, your neighborhood, your education, your job, your government, your relation to “the others”. And they’re changing dramatically. “Understanding Media”, Marshall McLuhan, originally published 1964. Reedited 2003, Gingko Press, critical edition by W. Terrence Gordon. But only recently, at Tate Modern’s bookshop, I came across “The Medium is the Massage”, by both Marshall McLuhan and…