Nep Parth, it's the 2nd time you're so categoric when expressing your opinion... life is not so absolute as you think, and unless you have a gift in foreseeing, you can't tell us that there is no way (beyond genetics) to increase the life expectancy...
As I said before, predicting the life expectancy in the Wing Commander era is almost impossible, notice I said "picturing" and "era"... by this I mean picturing human society in more than
600 years!!
Who know what advances mankind woul have made by then...
Mind you, already now there are ways to decrease the ageing rate of cells, ways that however are not very efficient, and not 100% scientifically proven, but progress is being made...
As LOAF pointed out, if indeed we could allow for constant organ replacement, by finding some way to make copies (clone) our own organs, I can't imagine the boost the expectancy rates...
This is just hypothetical of course, I am no dreamer that wants to live forever (except maybe for my curiousity to
see what life will
really be in 2600
), once I would have lived my life, and my time has come, I will accept it.
Yet, do not shut down possibilities that are still left open just because you
think it's impossible.
And as for the Roman life expectancy:
http://www.grg.org/resources/extro/tsld022.htm
http://www.finchcms.edu/neuro/apcourse/apr7/tsld002.htm
If you really knew the definition of "life exectancy", you wouldn't storm to contradict me. Life expectancy is an "average", it doesn't mean that
all Romans died at age 30... in some older text books there are even mentions about 60-70 year old serving soldiers dying in battle...
A life expectancy of 30 just means that in average, due to the uncured diseases, famines, wars of the time, the general Roman citizen was not expected to live more than 30 years...
So before you say something, think twice...