Marshall McLuhan:^ 'Environments are not passive wrappings, but are, rather, active processes which are invisible. The groundrules, pervasive structure, and overall patterns of envi¬ ronments elude easy perception

Marshall McLuhan:^ 'Environments are not passive wrappings, but are, rather, active processes which are invisible. The groundrules, pervasive structure, and overall patterns of envi¬ ronments elude easy perception