Squaring an aging curve is not the same thing as extending maximum lifespan. Simply because, after substantial squaring of the aging curve, the average 100-year

Squaring an aging curve is not the same thing as extending maximum lifespan. Simply because, after substantial squaring of the aging curve, the average 100-year-old might be as healthy as -- and physically indistinguishable-from -- the average 20-year-old, does not imply that any 100-year-old will live past the age of 120. It could be the case instead that biologically youthful 100-year-olds tend, from around that age, to decline rapidly.