• Between 1960 and 1990 operating costs per mile for world airlines fell by 60 per cent.
• Between 1970 and 1990 the cost of an international phone call fell by 90 per cent.
• In 1970 only 50,000 computers existed in the world. By 1998 the internet was being used by 150 million people worldwide, up from fifty million in 1995.