[gloosx]

40 hours is just a handy figure, like eight hours is a third of a day, third you spend on sleeping, third you spend on life, third you spend on work. I believe it was established due to these equal ratios. We kinda all work in manufacturing still, just the goods we manufacture have changed, yet we still spend about equal part of our life on it, probably due to strong tradition. Some are seeing 20 hour "void" in their third, cause really they want to spend 20 more hours on something else.