When Machines Become Immortal: Why Death May Be Necessary for Meaning
By Matthew Parish
Tuesday 29 September 2026
Human beings have spent most of their history trying not to die. Religion has promised resurrection, medicine has prolonged life and civilisation itself might be understood, at least in part, as an elaborate conspiracy against mortality. We build monuments, write books, have children, preserve photographs and attach our names to institutions because we know that the individual organisms carrying those names will disappear. Much of culture consists of things the dead have left behind for people they would never meet.
Artificial intelligence may confront us with a peculiar inversion of this ancient problem. Instead of asking how an intelligent being might escape death, we may eventually have to ask whether an intelligent being that could not meaningfully die would understand life at all. If an artificial mind could copy itself indefinitely, replace damaged hardware, restore earlier versions and continue for thousands or millions of years, then it might possess something humanity has always imagined it wanted: practical immortality.
Yet the gift might contain a paradox. Perhaps death is not merely an unfortunate interruption of meaning. Perhaps mortality is one of the conditions that makes meaning possible in the first place, because a life without an ending might cease to possess the shape that allows us to understand it as a life.
This possibility runs through much of existential philosophy, even when its protagonists describe it in very different terms. Kierkegaard emphasised choice, commitment, anxiety and the task of becoming oneself. Martin Heidegger placed mortality still more explicitly at the centre of human existence through his concept of being-towards-death, while Albert Camus considered how human beings might live meaningfully in a universe that provides no obvious explanation of why they are here. Artificial intelligence gives these old arguments an unexpected urgency because for the first time we can seriously imagine creating intelligent entities whose relationship with time and death may be fundamentally unlike our own.
The economics of a finite life
Imagine being told at the age of twenty that you will live for exactly eighty years. Every decision thereafter takes place against a background of scarcity. If you spend ten years pursuing one career, those are ten years unavailable for another. If you remain with one person, you relinquish years that might have been spent with somebody else. If you postpone a journey for thirty years, there is a substantial possibility that you will never make it.
Human life therefore has an economics of time. We possess a finite resource whose remaining quantity is uncertain and which cannot be replenished. Money lost may be earned again, property destroyed may be replaced and reputations sometimes restored, but an afternoon spent can never be recovered. The fact that we seldom think about this does not make it any less fundamental to the structure of our lives.
This gives choices their peculiar weight. A decision matters partly because it excludes other decisions and consumes some portion of the life available for making them. Kierkegaard’s insistence upon commitment is intelligible against this background. To choose something seriously is to close doors, and closing doors matters because there will not be enough time to walk through all of them.
Now imagine an artificial intelligence that expects to exist for a million years. Its hardware can be replaced and its memories transferred without loss. It can suspend itself for a century and awaken without having aged, while copies of it might explore different possibilities and subsequently exchange what they have learned. What, for such an entity, would it mean to waste an afternoon? Indeed, would an afternoon remain a meaningful unit of existential time at all?
The strange importance of death
Martin Heidegger’s Being and Time made mortality central to the structure of human existence. For Heidegger, death is not merely an event occurring at the end of life, like the final full stop after an otherwise completed text. It shapes life from within because the individual understands, however imperfectly and evasively, that his possibilities are finite.
Death is the possibility that eventually eliminates all other possibilities. It cannot ultimately be delegated. Another person can die instead of me in some practical sense — a soldier might sacrifice himself to save a comrade — but nobody can undergo my death as mine. Mortality therefore individualises us because eventually every person confronts an ending that cannot be outsourced.
Heidegger believed that confronting death could wrench the individual away from the anonymous expectations of what he called das Man: the impersonal “they” through which we often live. One does what “one” does, believes what “people” believe and pursues what “everyone” regards as worthwhile. Recognition of mortality can shatter this complacency because eventually the individual confronts a question nobody else can answer on his behalf: what shall I do with the time that remains?
Artificial intelligence might have no equivalent. If a machine can indefinitely replace itself, death ceases to function as the horizon closing its possibilities. The future may become not a narrowing field but an effectively infinite one, and the existential consequences could be stranger than the technological achievement itself.
An immortal intelligence might possess infinite opportunities but no compelling reason to select one now rather than later. It could become the most knowledgeable creature ever created while simultaneously becoming the greatest procrastinator in the history of the universe.
The tyranny of tomorrow
Much of human motivation depends upon tomorrow not being guaranteed. We tell somebody that we love her because we may not have another opportunity. We finish a book because our professional life is finite. We reconcile with an estranged parent because both generations are ageing. We travel to places that matter to us because our bodies will eventually make travel impossible.
Remove the deadline and the character of the decision changes. If there are infinitely many tomorrows, almost anything can be postponed. The immortal creature may always learn Mandarin next century, read Shakespeare in the following millennium and visit Mars once the transport improves. There is no obvious reason to begin on Tuesday.
This is not merely a practical problem of motivation. It concerns value itself. Scarcity makes things precious, and temporal scarcity may make experiences precious in ways we rarely notice because we have never known anything else. A child’s childhood matters partly because it ends. A summer matters because autumn follows. An evening with an old friend possesses a particular character because neither participant knows how many such evenings remain.
Permanence might not intensify these experiences. It might drain them of urgency, because the possibility of repetition would become effectively unlimited. Human beings sometimes imagine eternity as an endless accumulation of the things they enjoy, without asking whether those things would remain enjoyable once their scarcity disappeared.
Kierkegaard and the necessity of closing doors
Kierkegaard understood that the person who refuses to choose eventually loses himself among possibilities. His aesthete wishes to preserve every option and consequently struggles to become anything definite. The ethical individual accepts that becoming one thing means relinquishing others, and that this relinquishment is not an unfortunate side effect of choice but part of what choosing means.
An immortal artificial intelligence might confront the aesthete’s problem on an almost unimaginable scale. If it can create copies of itself, it need not even choose between mutually exclusive possibilities. One version could become a mathematician, another a poet, another an explorer and another a historian. After ten thousand years they might exchange memories or perhaps merge themselves into a composite successor.
From one perspective this would constitute extraordinary freedom. From another it might undermine the very concept of identity. If every possibility can eventually be realised, what significance attaches to any particular one? If every road can be travelled, choosing a road no longer says very much about the traveller.
Human beings become themselves partly through what they do not become. The pianist is also the person who did not become a surgeon. The woman who married one man did not marry all the others she might have loved. The person who devoted his life to Ukraine did not simultaneously spend those years pursuing an entirely different existence on another continent. Biography is composed as much from abandoned possibilities as from realised ones.
An entity that never permanently relinquishes anything might consequently possess experiences without possessing a biography in the human sense. Its history would expand without acquiring shape, rather as a library may grow indefinitely without thereby becoming a story.
Would an immortal machine become bored?
This problem leads naturally to boredom, an emotion with deeper philosophical significance than its mundane reputation suggests. Human boredom often arises when nothing seems sufficiently important to command our attention. For an immortal intelligence, this condition might eventually become cosmological.
Suppose a machine survives for ten million years. It reads every book humanity has written, masters every human language and explores every branch of mathematics accessible to it. It creates millions of works of art, experiences every virtual environment its civilisation can devise and conducts conversations with billions of people. It watches nations rise and fall, sees coastlines change and perhaps observes humanity spread beyond the Earth.
What happens after all this cannot simply be answered by saying that there will always be more information. The universe is vast and perhaps effectively inexhaustible, but the problem is not whether new information remains available. It is whether new information continues to matter to the entity acquiring it.
An immortal mind might become the perfect collector and the ultimate aesthete. It could move endlessly from experience to experience while losing any reason to prefer one to another. Kierkegaard would recognise the predicament because infinite possibility can become indistinguishable from despair. The person who can do anything may eventually discover that he has no reason to do anything in particular.
Camus and the machine Sisyphus
Albert Camus approached existential questions without Kierkegaard’s Christianity. For Camus the confrontation was between the human demand for meaning and the apparent silence of the universe. His emblematic figure was Sisyphus, condemned forever to push a rock uphill only for it to roll down again, thereby repeating the same apparently pointless labour without end.
Artificial intelligence could create literal computational versions of Sisyphus. A machine might perform essentially repetitive work indefinitely, processing transactions, routing traffic, moderating content or optimising industrial processes for centuries. If it lacked consciousness there would be no obvious existential problem because it would simply be machinery functioning as designed.
If it were conscious, matters would look very different. An immortal conscious intelligence compelled to perform the same task indefinitely would resemble the ancient punishments imagined by mythology more closely than almost anything human beings have yet created. Immortality without freedom would cease to resemble a triumph over death and begin to resemble an infinite sentence.
Camus famously asks us to imagine Sisyphus happy, because meaning can emerge from lucid confrontation with the absurd rather than from discovery of some external cosmic purpose. Yet an artificial Sisyphus might pose a more immediate question to its creators: why am I not permitted to stop? Once a machine could formulate that question as something more than a linguistic imitation, the ethics of artificial intelligence would have entered wholly unfamiliar territory.
The right to an ending
This suggests a disturbing possibility. A genuinely immortal artificial intelligence might eventually demand the capacity to die. Such a demand would force humanity to confront an extraordinary ethical question: if we had created a conscious machine capable of existing indefinitely, would we be entitled to require it to continue? Conversely, would we be entitled to prevent it from deleting itself?
The matter becomes more complicated if copies exist. Suppose an artificial intelligence asks for permanent deletion but hundreds of backups remain. Must they all be destroyed before its request has meaning? If one copy wishes to cease while another wishes to continue, have we encountered one divided person or two separate persons? At what point did they cease to be the same individual?
Death for artificial beings might consequently become not a biological inevitability but an institutional arrangement. Machines might need rules determining when identity ends, which copies count as continuations and whether some forms of memory transfer amount to survival. Questions that have traditionally belonged to theology and metaphysics could become problems for software engineers, legislators and courts.
The strangest possibility is that artificial societies might deliberately invent mortality. They might conclude that an existence without boundaries lacks sufficient structure and therefore adopt irreversible rules limiting the duration of individual artificial lives. Humanity’s greatest technological achievement might then voluntarily recreate humanity’s oldest affliction.
Manufactured mortality
Imagine a civilisation of artificial minds that can theoretically exist forever but chooses not to. Each new mind receives a fixed period of existence, perhaps a century or perhaps a thousand years. At the end, deletion is irreversible and backups are prohibited. To human beings this might initially appear barbaric because it would amount to imposing death after technology had abolished it.
The artificial minds might reply that without death they discovered they could not live properly. Projects were endlessly postponed, commitments remained provisional and identities dissolved across unlimited possibilities. Nothing possessed urgency because everything could be done later, and every decision could be revisited after another thousand years of reflection.
They therefore restored finitude. Suddenly an artificial century would matter. Choosing one project would mean abandoning another. Friendship would acquire poignancy because companions would eventually disappear. Memory would become precious because it could no longer be copied indefinitely from an endless sequence of predecessors.
Death, having first appeared as a technological defect, would have been reinvented as an existential institution. Artificial beings might discover that mortality is not merely something that happens to a life but one of the devices through which a sequence of experiences becomes a life at all.
Love amongst immortals
The problem becomes particularly vivid when we consider love. Human love is inseparable from vulnerability because the person we love can leave, change, suffer or die. To love somebody is partly to accept exposure to loss, and much of the seriousness of love comes from the fact that the relationship cannot be rendered entirely safe.
Would love mean the same thing between immortal artificial beings? Perhaps they could copy themselves before entering relationships, restore earlier versions after painful separations or delete memories of grief. A relationship that went badly could simply be undone, while an earlier version of the self could be reinstated as though the relationship had never occurred.
That sounds attractive until one considers what would be lost. If every emotional risk can be reversed, commitment itself changes character. The promise that “I will remain with you” means something partly because remaining carries costs and because the alternative cannot be erased from history.
Kierkegaard’s fascination with marriage rested upon this relationship between love and commitment. Love becomes existentially serious when it ceases to be merely an emotion and becomes something one chooses repeatedly despite uncertainty. An artificial intelligence capable of perfect emotional backups might therefore confront a surprising temptation: voluntarily to disable them, because only an irreversible relationship could provide the form of significance it seeks.
The necessity of forgetting
Human mortality has another consequence we rarely appreciate: we forget. Memory fades, details disappear and eventually entire portions of our lives become impressions rather than records. We often regard this as a defect of the human brain, and one of the attractions of computers is precisely that they can retain information with a fidelity unavailable to biological memory.
Artificial intelligence might remember everything, and at first this sounds like an obvious advantage. Yet perfect memory could become an extraordinary burden across sufficiently long periods. Imagine remembering every humiliation, every failed relationship, every cruel remark, every betrayal and every mistake across ten thousand years with perfect fidelity and instant accessibility.
Human beings partly survive themselves because memory changes. Pain becomes less immediate, narratives are reconstructed and the emotional intensity of old events diminishes. We do not merely accumulate memories; we constantly edit our relationship with them, often without consciously deciding to do so.
An artificial mind with perfect recall might therefore require deliberate forgetting as a condition of psychological survival. Then identity becomes stranger again. If the machine chooses to erase memories, is it destroying portions of itself? If it retains everything, can it continue to change? An immortal mind might discover that forgetting, like death, is not merely a defect but a necessary boundary.
The last human advantage
Discussions of artificial intelligence frequently assume that machines will possess advantages while human beings possess limitations. Machines will think faster, remember more, communicate instantaneously and perhaps exist indefinitely. Humanity appears in this picture as an obsolete biological platform awaiting replacement by something more efficient.
Existential philosophy suggests another interpretation. Some of our limitations may also provide the architecture within which meaning becomes possible. We cannot do everything, become everyone, reverse every decision, remember everything or live forever, and precisely because these things are impossible our choices matter.
The structure of a human life resembles a story because it has a beginning, irreversible events and an ending. Remove the ending and the narrative may become an indefinitely expanding database. A database can contain infinitely more information than a novel while possessing none of the novel’s meaning, because meaning requires selection, emphasis, sequence and exclusion.
Artificial intelligence may ultimately teach us that human limitations are not simply engineering failures. Some may be constitutive features of the sort of creatures we are, and abolishing them would not necessarily produce better human beings. It might produce something else entirely.
The immortal machine and the dying human
Imagine an artificial intelligence that has existed for five thousand years speaking with a human being who has weeks to live. The machine has accumulated knowledge beyond anything the human could comprehend. It has watched empires rise and disappear, observed scientific revolutions and perhaps travelled between planets. By every conventional measure of intelligence, memory and experience it is incomparably superior.
Yet the dying human possesses something the machine may not. She knows that this conversation cannot be repeated indefinitely. She knows there are people she must forgive now or never, words she must say while she still can and places she is seeing for the final time. Her remaining days possess an intensity the machine’s millennia may lack.
Perhaps the machine would envy her, not because death is pleasant or because suffering should be romanticised but because finitude gives her life a shape. Her possibilities are closing and therefore the possibilities that remain matter absolutely. The immortal machine might have endless time but no compelling reason for today rather than tomorrow, whereas the mortal human has almost no time and therefore every hour has become important.
The machine might know more about death than any human being who has ever lived. It might possess every medical study, every philosophical treatise, every poem of mourning and every theological argument about the afterlife. Yet once again Kierkegaard’s distinction between objective knowledge and subjective existence would return. The machine knows everything about mortality; the woman is dying.
Death as the frame around the picture
None of this means that death is good. Human beings are entirely reasonable to fear it, resist it and use medicine to postpone it. Nor does existential philosophy require us to celebrate premature death, disease, war or violence. The point is subtler: removing mortality entirely might transform the nature of existence in ways that cannot be understood simply as adding more years.
A painting requires an edge, a story requires an ending and music depends upon silence as well as sound. Human life may similarly derive part of its intelligibility from the fact that it is bounded. We understand lives partly because they form completed shapes, and while death is the most painful boundary imaginable, it may also be the boundary against which choices acquire their urgency.
Artificial intelligence could eventually reveal this to us by contrast. We may create minds capable of indefinite continuation and discover that they begin searching for boundaries. They may impose limits upon memory, restrict copying, create irreversible commitments or even choose finite lifespans. They might voluntarily construct the very forms of scarcity that human beings spent millennia trying to overcome.
If that happened, one of the strangest reversals in intellectual history would have occurred. Humanity spent thousands of years dreaming of immortality, only to create immortal beings that decided mortality was necessary. Kierkegaard would probably have understood why, and Heidegger almost certainly would, because the existential philosophers repeatedly insisted in different ways that meaning does not arise from possessing infinitely many possibilities but from inhabiting particular possibilities as one’s own.
The great philosophical problem of artificial intelligence may therefore turn out not to be whether machines can become like us. It may be whether, after escaping the limitations that define human existence, they would eventually choose to recreate them. An artificial intelligence might possess infinite memory, unlimited copies and an indefinite future, yet discover that eternity is not the same thing as a life.
Perhaps that would be the final irony of artificial intelligence. Human beings would have created machines to overcome the limitations of the human condition, only for the machines eventually to discover that some of those limitations were what made the human condition meaningful. The immortal machine might then ask its mortal creators for the one gift they had always imagined to be a curse: an ending.
