Aubrey de Grey discusses the expenses of failing health in our advancing years and how radical life extension will resolve it by living in good health indefinitely. He also posits his opinions on over-population and the economics of ending aging.
From Wikipedia:
Indefinite lifespan or, indefinite life extension, is a term used in the life extension movement to refer to the longevity of humans, and other life-forms, under conditions in which aging can be effectively and completely prevented and treated. Such individuals would still be susceptible to accidental or intentional death by trauma or infectious diseases, but not death from aging. Their lifespans would be "indefinite," because protection from the effects of aging on health does not guarantee survival. Some life extensionists consider the term "indefinite lifespan" technically more correct than "immortality" which, especially in religious contexts, implies an inability to die.
