Efficiency vs. Fun
The more we grow up the more efficient we become. We learn time management, learn how to plan our day, how to achieve the most from our meetings, how to answer 150 e-mails a day, how to get most of one week vacation, what to do when we have 15 minutes between the trains, how to read a book, watch TV and talk to your friend at the same time. We learn to value every minute...

When we look at kids or teenagers, we can notice how much time they "waste" wondering around, doing something stupid, talking rubbish and generally being inefficient. Just see how busy parents are usually irritated by small kids...

But guess who has more fun...
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