And it's certainly enough time to make the modern office redundant.
4. The distinction between work and leisure is, for better or worse, undermined by email. In the 20th century, we went to the office to work and then came home to enjoy our leisure. But email means that we can never escape the office. When anyone can be reached at any time, the traditional office becomes an anachronism.
According to the literary critic John Freeman, the "average corporate worker," gets about 200 e-mail messages a day. That has led to what Freeman calls "The Tyranny of Email", a situation in which we can never really escape the office, never maintain the old fashioned distinction between leisure and work.
5. From Sao Paolo to Seoul to Los Angeles to Beijing, commuting can take almost as much time as the workday itself. As these megacities dominate the 21st century, accessing the downtown office will be less and less viable.
The rise of the megacity -- cities with more than 10 million people -- is one of the most significant developments of the early 21st century. By 2025, the U.N. predicts nine new megacities in Asia will help bring the total to 37. All but eight of these new megacities will be in the developing world -- and the quality of life for millions will be determined by the quality of their cities.
The greatest blight of these megacities will be traffic. In contrast, these massive new cities will -- like Seoul -- be so wired as to empower their inhabitants lightning-fast communications.
And so, as urban life becomes more and more central in the developing world, more productive and happier workers will stay home and rely on smart technology to communicate.
The idea of the "Smart City" is now fashionable. But I prefer the idea of the "Smart Worker". And the smart worker of the future will chose to work from home rather than wasting hours commuting many miles on the super congested roads of their megacities.