1 Are there many films, books and plays about historical subjects or science fiction?
2 Why are people interested in other times?
3 People want to escape from the present, don't they?
4 What will the future depend on?
5 Is it difficult or easy to imagine men in different ages?
6 Do we have evidence about what happend in the past?
7 What are the sources of the evidence?
8 What will people in the future think about our life?