thats why, if you follow the discussion, we already discuss other methods of aging out of this "fixed age" thing.
for example modulating life expectancy with work done and gender... the original proposal was long abandoned and not discusses any more... we got new ideas which we should continue to think about to get a realistic thus not disturbing lifespan calculation.
a good example for that is the age of the despot. it is unrealistic that it is impossible for a commoner with light work to reach 65. and even more unrealistic that the despot reaches double the age as a commoner.
of course it should be rare for a normal person to reach that age, but it should nevertheless be possible...
im strictly against a fixed upper age... it must be randomized and modulated.