Thinking about old age, one of the great (current, probably solvable in longer terms) tragedies of Western societies is the limited progress of medicine in maintaing quality of life vs. merely facilitating prolongation. As far as I can tell, our ability to arrest previously terminal conditions relating to e.g. cardiovascular disease and strokes, has greatly outpaced the ability to maintain/enhance quality of life after such events. I watched my father suffer through 12 years of absolute debilitation after a stroke, slowly sinking into physical and mental disability, with no prospects of improvement. I would not wish to go through the same, and find it quite hypocritical that we are so focussed on maintaining «life» simply for the sake of it, without considering the experienced value of those late life years.