How does Nowra explore society’s treatment of the mentally ill in Cosi? 2. In Cosi, Nowra forces his audience to question what it means exactly to be ‘normal’. How does he do this? 3. How are ideas about betrayal and loyalty explored through the structure of the play within a play? 4. Lewis says, “love is not so important nowadays”. What does the play show us about Nowra’s opinion on this topic?