Well life expectancy depending on variations is well past 80, especially once you make it into your late 60's and i don't imagine much of the working public wan

Well life expectancy depending on variations is well past 80, especially once you make it into your late 60's and i don't imagine much of the working public wants to be heading into work Monday morning at that age, so yes - it is reasonable to assume life expectancy will outpace retirement for several decades.