Why do we watch YouTube videos? Why do we spend so much time on Facebook and Flickr? Why do we read so many Wikipedia articles? Why do we play our favorite sports and watch our favorite TV shows? Why do we talk to our friends on the phone? Why do we chat? Why do we work? Why do we go shopping? The answer to these questions is either because ‘we want to’ and/or ‘we love to.’ Why do we work? Maybe it’s not because we enjoy our work but because we want to work: we want to make money, and we want to have a career, and we want to have a promotion, and we don’t want to sit home all day long. Why do we play sports? Because we enjoy playing them, we enjoy competing, and we enjoy to spending time with our friends. And we want to be in shape! If… read more