I suspect this 9->5 is more 'by convention' than an actual fact?
For me, I am not that productive before lunch and have to push myself, but on the other hand I can easily be productive in the afternoon and evening.
Yea, everyone is different. The point I was trying to make is more that dedicating your prime waking hours 5 days a week to a single employer is actually a lot when you think about it.
