That’s the view of Daniel Callahan, who urges us to make no special effort to keep them alive beyond their "natural" lifespan. The view of ME, which is part of the linked SOCIETY symposium, is that such a pro-death policy is both contrary to our culture of rights and an offense against human dignity and human love. (The older I get, the more convinced I am of this view.) Even the Bible is in favor of people living a very long time, if they can figure out how to do it. The culture of life includes both an openness to the possibility of extreme prolongevity and acting on the awareness that the point of human life is not merely staying alive. Here’s the title of my contribution: "Stuck with Virtue in Our Pro-Life Future."