“Until relatively recently, the media guru Marshall McLuhan, with his gnomic pronouncements about ‘acoustic space’ and ‘cool’ media and ‘square’ people, appeared to be a dated artifact of 1960’s culture destined to go the way of tie-dyed shirts, Peter Max posters and Timothy Leary. ‘Once exalted as oracular, Marshall McLuhan’s theories now seem laughably inadequate as an intellectual guide to our times,’ one critic wrote in 1987, seven years after his death.”