What did our parents and grandparents think today would be like 30 years ago?

They predicted that people would be able to go to visit big cities like Shanghai and Beijing in one day and then come back for supper in the evening. They predicted that people would live in high  buildings with lifts and electric lights and telephones  which could communicate with any place in the world. They predicted that people would live more than seventy years old. They predicted that people would watch others doing things in faraway countries.