Modern technology has revolutionised life in three main fields: work, transport and communication. Although modern technology is often blamed for stress and alienation, I doubt that many people would want to turn back the clock to the pre-technological age. Despite the fact that life was simpler in former times, I would prefer not to return to that lifestyle, because that simplicity was due to a lack of choice. Before large jet airliners came in in the 1960s, for example, air travel was beyond the reach of most people. Before electronic cash registers, people had to spend a lot of time on math calculations to carry out transactions. Furthermore, our knowledge of the world around us, especially foreign countries, was sketchy before television brought us the vivid images of documentaries. Modern technology has brought liberation from the exhausting and boring labour and has set us free to enjoy more interesting work and leisure.