"during this century (the twentieth) we have for the first time been dominated by non-interactive forms of entertainment: cinema, radio, recorded music and television. Before they came along all entertainment was interactive: theatre, music, sport - the performers and audience were there together, and even a respectfully silent audience exerted a powerful shaping presence on the unfolding of whatever drama they were there for. We didn't need a special word for interactivity in the same way that we don't (yet) need a special word for people with only one head. I expect that history will show "normal" mainstream twentieth century media to be the aberration in all this. 'Please, miss, you mean they could only just sit there and watch? They couldn't do anything? Didn't everybody feel terribly isolated or alienated or ignored?' Yes, child, that's why they all went mad. Before the Restoration.'