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@Singularity
Life expectancy has probably doubled in the last hundred years.
Better healthcare, improved medical intervention, increased personal awareness of healthy living etc.
Nonetheless 0 to 50 is still 0 to 50 and a year is still a year, and though we might be relatively fitter and healthier than previous generations were, this still only extends the years from 50 0nwards.
And 50 onwards are still inevitably the years of natural physical decline.
And so continued use of current strategies can only increase the years 100 + for example.
And currently, of what real use is a centenarian?
Do you get my point?
How do you actually stop the clock sooner?