Immortality Research – Recent Studies – John Templeton …

Investigations into the biology, philosophy, and theology of immortality research

In the Greek myth of Tithonus, the goddess of the dawn falls in love with a Trojan prince and asks Zeus to render him immortal so that the lovers could spend eternity together. However, she neglects to request that Tithonus be granted eternal youth in addition to eternal life. As a result, the immortal Tithonus suffers from the painful decay and degradation of his body over time, eventually shriveling down into a cricket.

The prospect of living forever has fascinated human beings for millennia, but it is not a concept without its challenges: the physical body breaks down, the soul is mysterious, and the prospect of infinite time raise philosophical puzzles about what it would be like to exist eternally and whether it would even be pleasant to do so.

Questions of the plausibility, nature, desirability and implications of various possible versions of immortality were at the forefront of the recently completed Immortality Project, a three-year, $5.1 million research initiative headed by University of California, Riverside philosopher John Martin Fischer and funded by the John Templeton Foundation. Using a competitive international evaluation system, the project funded 34 projects related to scientific, philosophical, and theological questions that touch on immortality, enabling the production of books and articles by scientists and humanists, popular writings, documentary films, and even works of science fiction. As a follow-up to the project, the Templeton Foundation recently commissioned a research review summarizing the current state of thinking on the scientific, philosophical, and theological intricacies of immortality, showing where the Immortality Project has moved the discussion forward and highlighting areas ripe for future work.

Much of the Immortality Projects research addresses the chances of technological or medical breakthroughs that might greatly extend human lifespan and investigating non-human species that have atypical lifespans or aging. This research is directly relevant to the physiological or staying alive conception of immortality. Project grantee Jon Cohen published Deathdefying experiments, an article in Science cataloguing recent experiments in non-human species, including cases where mice and insects have achieved impressive ages. One particular mouse, GHR-KO 11C, lived nearly five years (about twice the normal mouse lifespan) thanks to the removal of a gene for a growth hormone receptor. Other insects and worms, such as the Caenorhabditis elegans, can have extended lives because of gene mutations. The biological champion of non-aging is the freshwater hydra, Hydra vulgaris, a tiny relative of corals and jellyfish that is the only species that doesnt seem to age. In one case hydras were observed for ten years without signs of decay. Such studies suggest how anti-aging technologies might be developed for humans, although the journey from a hydra to a human would likely be a long one.

Other grants under the Immortality Project looked at the scientific evidence stemming from near-death and out-of-body experiences and what it tells us both about the possibility that human existence might continue independent of our physical bodies and about the psychological importance of near-death experiences. Under the grant, physician Sam Parnia published the book-length Erasing Death, focusing on the biology of near-death experiences in specific patients, and ending with a call for greater investment in resuscitation science.

In a separate book, Near Death Experiences: Understanding Visions of the Afterlife, Fischer and Immortality Project postdoc Benjamin Mitchell-Yellin examine how supernaturalists have used near death experiences to bolster their arguments, although the authors conclude that such experiences do not provide particularly strong evidence that an immaterial soul that can become immortal.

Why is the idea of immortality so fascinating across so many human cultures? One common explanation for the prevalence of belief in some form of immortality is that it offers an alternative to the existential terror engendered by contemplating potential non-existence after death for ourselves or other people. Several grantees under the project took up the contention of the Epicurean philosopher Lucretius that it is no more rational to worry about ones non-existence after death than to worry about ones non-existence prior to birth. Ben Bradley of Syracuse University examines several potential defenses of the idea that not existing is categorically bad for instance, because it may deprive us of potential good we might have experienced by living longer but finds them them unconvincing. As part of a multi-part subgrant examining Time Bias and Immortality, Notre Dame philosopher Meghan Sullivan suggests that Lucretius was not correct to argue that rationality requires we have symmetrical feelings about pre-life and post-life non-existence.

Sullivans work on this so-called time bias also touched on another set of common philosophical questions on whether individual immortality could be either possible or good: for instance, would an immortal afterlife entail abrupt or gradual changes such that at some point an individual would fully cease to be themselves? And if they have ceased to be themselves, do they truly live on?

Another classic objection to the desirability of immortality is that over infinite time it would eventually become tedious. In Fischer and Mitchell-Yellins Immortality and Boredom, the project leaders argue that this objection is not well founded. Even if an immortal person were to exhaust all previously known experiences, new ones might still be created, and familiar ones could still be enjoyed.

Not all conceptions of immortality need to involve the persistence of a physical body or even a soul one can talk about achieving immortality by having ones work or values persist after death. In one grant-funded article, The Immortals in Our Midst, political philosophers Ajume Wingo and Dan Demetriou suggest that leaders who establish legacies of democratic values achieve a kind of civic immortality that may be the best method for bringing democratic values to countries that are not comfortable with western approaches to politics.

The Immortality Project also provided funding for U.C. Riverside philosopher Eric Schwitzgebel to publish several works of short fiction that used narrative to elaborate on the sort of spare thought experiments more typical in the philosophy of immortality. In Reinstalling Eden: Happiness on a Hard Drive and Out of the Jar, Schwitzgebel explores the ideas of simulated universes, full-body replication and pervasive artificial intelligence relate to the possible natures of immortality.

Many religions, and Christianity in particular, hold that believers will come experience some form of eternal life. This is usually understood in terms of living on forever after death often in the bliss of heaven or the torments of hell. However, Mikel Burley, a professor of religion and philosophy at the University of Leeds, argues that the eternal life promised to Christians need not exist only in the hereafter. Instead, eternal life may be realized during a believers lifetime on earth. Burley proposes that eternal life may be enjoyed as a present possession, appealing to four-dimensionalist metaphysics, which understands time as a fourth dimension akin to the three spatial dimensions. According to four-dimensionalism, parts of time are as real as parts of space, so that all times past, present, and future are equally real and exist eternally, just as all locations defined by the three spatial dimensions (height, width, and depth) also coexist. On Burleys model, partaking of eternal life requires more than us simply existing eternally within time slices of our own past, present, and future: it requires that believers undergo a moral transformation wherein they come to participate in the life of God.

Christina Van Dyke of Calvin College used an Immortality Project subgrant to investigate the concept of sempiternity a state of changeless duration without end as described by Thomas Aquinas. She examines whether shifting to such a radically different temporal framework would necessarily change what it means to be human or whether it would be an extension of already-known types of human experience, including the timelessness aspect of some mystical experiences, or the way perception of time changes for people engaged in creative flow.

Whatever temporal form eternity takes, should believers expect to spend it all in one (very good or very bad) place? Two grant-funded articles take up the belief in the intermediate and temporary eternal states of limbo or purgatory, which are most famously expounded in Catholic theology. Kevin Timpes An Argument for Limbo explores the concept as a state as an opportunity for individuals never given sufficient opportunity to accept Gods offer of redemption during their terrestrial life, including the cognitively disabled lacking the intellectual capacities, to be reconciled to God. Meanwhile, Joshua Thurows Atoning in Purgatory suggests that an omnibenevolent being such as God would want to bring about the most good and thus save the most amount of people; so giving people a chance in purgatory to right their wrongs so that they could enter heaven is in keeping with that goal.

Befitting a subject that touches on the neverending, the aggregate work produced by the Immortality Project identified many questions ripe for future exploration. Biological investigations quickly turn up profound ethical questions about how and to whom life-extending treatments might be made available and how society might be altered if death became optional for some of its members. These ethical discussions involve the contemplation of thought experiments and imagined scenarios, raising additional meta-questions for investigation: Are such methods reliable ways to attain knowledge about immortality? Might fiction be more effective in this regard than abstract philosophizing, as Schwitzgebel suggests? What role do non-physical sciences such as psychology, sociology, anthropology, economics, or history have in helping us understand immortality?

One of the important collective outputs of the Immortality Project has been as a model of ways that interdisciplinary approaches can serve as a case study in scientific and scholarly communication. With a topic as emotionally and ethically vexatious as immortality, the chances of immortality research being misunderstood or misappropriated seem high, making it a perennial challenge for scholars and scholarly communities to better communicate their conclusions for a fascinated public.

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