…Martin Heidegger argued in Being and Time (1927) that human beings are not simply creatures who happen to die. Rather, we are creatures for whom the awareness of death is constitutive of who we are. He called this condition ‘being-toward-death’. On Heidegger’s reckoning, the recognition that our existence is finite is not merely background noise, but the very condition that makes our choices matter. To commit to a career, a relationship, or a cause, is to accept a path that only makes sense against the approach of an ending. Consider what we most genuinely admire in peoples’ lives: the parent who sacrifices their own ambitions for their children; the artist who spends a lifetime perfecting a craft they know they will never fully master; the activist who works hard for a cause they will not live to see completed. None of this carries the same moral weight for a being with unlimited time available. An immortal can always afford to wait, to hedge his bets and keep his options open, and in doing so may find that his choices gradually lose the very weight that makes them categorical.
The transhumanists promise us more time. Heidegger suggests that it is precisely the limit on our time that makes it worth anything.
Endless Conclusions
Perhaps the most honest thing that can be said about the desire to live forever is that it’s a displacement – a confusion of one desire for another. When most of us say we want immortality, what we actually mean is that we want more time for what matters to us. More time with the people we love, more time to pursue what gives life meaning, more time to see how things turn out. That is not a desire for endless duration, it’s a desire for more depth.
Williams is right that an immortal life risks losing precisely the depth and quality that makes life worth living. Heidegger adds a sharper point still: it is not merely that immortality might produce boredom, but that a life without death is structured differently from ours in ways that may make urgency, commitment, and genuine love increasingly difficult to sustain. When every choice is revisable and no horizon is final, choices lose the weight that makes them meaningful.
The transhumanists may yet prove Williams wrong about boredom. But whether a technologically extended life would still be a genuinely human life, or in engineering away our limitations we also engineer away something essential to humanity, remains an open yet urgent question.
The ethicist Michael Sandel reminds us that there is a form of wisdom in receiving life as it’s given rather than endlessly remaking it on our own terms. I cannot help but wonder whether that’s an ominous warning to those who would seek to augment human beings exponentially. Such a project risks two things. First, to borrow some words from Jurassic Park, “Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.” Second, as mentioned, at what point would a sufficiently augmented human being cease to be human in any sense we would recognise?
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https://philosophynow.org/issues/174/Who_Wants_to_Live_Forever