Time is short, attention is invaluable.
The rapid pace at which we work and organise our freetime unavoidably makes us realise that time is a valuable - since scarce - resource. Hence, everyone has to manage his or her own time. In addition, we have to choose between innumerable possibilities every day in the most diverse situations in life.
People radically and rigorously sort out to whom or what they want to give their time and where they want to put their attention.