Israeli historian Yuval Noah Harari writes in his international bestseller Sapiens: A Brief History of Humankind,

One of history’s few iron laws is that luxuries tend to become necessities and to spawn new obligations. Once people get used to a certain luxury, they take it for granted. Then they begin to count on it. Finally they reach a point where they can’t live without it. Over the few decades, we have invented countless time saving machines that are supposed to make like more relaxed—washing machines, vacuum cleaners, dishwashers, telephones, mobile phones, computers, email. We thought we were saving time; instead we revved up the treadmill of life to ten times its former speed and made our days more anxious and agitated.