At this point in the story of the history of the office worker, it should be common knowledge that being a productive worker doesn't mean being tied to a desk for 8 hours a day between the hours of 8 AM and 5 PM. In the yesteryear of the evaluation of working performance, previous generations would have sat stoically at their desks and, whether or not they were actually doing anything of merit to contribute to the company, their ability to have their behind in that seat for eight hours a day wo…