In the future, we might not watch TV on screens. It might be all in our heads. That, at least, is the theory held by Reed Hastings, the CEO of Netflix, The Telegraph reports. Hastings warned audiences at a Wall Street Journal event earlier this week that technology and entertainment have a funny way of making the mediums that came before go bust — for example, how cinema and TV have made "the opera and the novel" less appealing to consumers.