The Scientific Conquest of Death is filled with new definitions of concepts that are basic to our experience of the world, including life, death, the body, aging, and immortality. In part, such efforts to introduce or popularize definitions are strategic. In the opening essay, Michael Rose defines aging as "that which occurs when rates of survival and reproduction inexorably decline," exclusive of the influence of all external agents of death. Such a formulation suggests that aging is not a universal characteristic of living things and implies that it is not "against nature" to attempt to quantify and retard aging.
| Achieving physical immortality would radically reorganize human society
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Similarly, the correct, legally-recognized definition of 'death' is of the utmost importance to providers of cryonic suspension services who must have access to the bodies of their clients and must maintain the right to sustain those bodies in states of suspended animation. As Brian Wowk puts it, if "life is chemistry," then "death is when the chemistry of life becomes irreversibly damaged." Wowk refers to this as the "Information Theoretic Criterion for Death"--that a person is considered dead only when no form of currently available or theoretical technology can restore the damaged chemistry to working condition. Adopting such a definition of death would allow for effective legislation today that is premised upon the expectation of future medical breakthroughs. However, the intent of redefinition campaigns can go beyond the political and pragmatic. Achieving physical immortality would radically reorganize human society and identity. So what exactly is meant by immortality? Certainly not the incorruptibility of the soul or spiritual continuation in an afterlife, but not necessarily an embodied perpetuation of the self, either. Or, at least, not embodiment as we presently experience it.
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Brian Wowk |
An assumption shared by nearly all of the book's authors is that humans have transcended evolution by natural selection and our future mutations will be the result of deliberate experiments to refashion ourselves into the new creatures who are to be our descendants and legacy. The scientific considerations presented to this end by the authors of the first section include essays on therapeutic cloning, the search for an
elixir vitae, and replacing our bodies piecemeal with mechanical parts, and range further afield into speculation on becoming cyborgs, the convergent evolution of humans and machines, and the eventual shedding of our bodies in favor of life as a mind in the mainframe. Such flights are at times little more than heady conjecture unhindered by the ballast of hard data, but the authors do manage to effectively convey their enthusiastic embrace of the limitless possibilities they perceive in store for us. At their best, as with Brian Wowk's "Medical Time Travel," a summary of the past, present, and potential future of cryopreservation research, the articles in the 'Science' portion of the book provide a cursory account of one aspect of the accelerating and obscurely interconnecting stories of gerontology, genetics, biochemistry, robotics, and information technology. In his step-by-step narrative, Wowk presents what is known about the slowing of biological processes at low temperatures, is honest about the technical challenges and hurdles to success that cryonicists face, and suggests strategies to help the field of cryonics gain wider acceptance as a legitimate practice while avoiding the hyperbole and unsubstantiated assertions that mar many other chapters.
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Robert A. Freitas, Jr. |
One word recurs throughout the text with an insistent regularity: nanotechnology. Whether it be reviving bodies in cryonic suspension, creating perfectly constructed identical components, growing materials with properties made to order, or replacing our brains with synthetic processors, the authors nearly uniformly cite nanotech as the means to achieve marvels. Most directly considered in Robert A. Freitas, Jr.'s contribution, "Nanomedicine," nanotechnology is undoubtedly a word that will occur everywhere with increasing frequency over the next few years. Freitas captures the wild optimism associated with nanotech, providing an imaginative and detailed account of possible biological applications of this science of the ultra-tiny, including sketches of theoretical molecular-scale machines, like the 'respirocyte' (an artificial red blood cell) and the 'microbivore' (an artificial white blood cell), that he envisions carrying out our bodily functions for us with improved efficiency and beyond our current operating parameters. Though there is reason to be hopeful, whether or not nanotech will develop beyond an esoteric and unreachable dream sought by engineers must wait to be seen.
This recourse to the unproven realm of nanotech is indicative of a trend present throughout the book. 'Technology,' as a general category, is frequently invoked as a transcendent mechanism capable of solving any problem too murky to penetrate from our current vantage.
| Our future mutations will be the result of deliberate experiments. |
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Rather than investigate the expectations we place on technology and the privileged position it holds in relation to our self-image and our thoughts of the future--our transference onto technology and our joyful submission to it--most authors simply assure us that whatever the sticking point, be it the limitation on the rate at which our brains process information, the scarcity of earthly space and resources, or the unimaginable tedium that living for eons may well entail, the progress of technology will doubtlessly mitigate the matter when the time comes. Of course this is likely to be at least partially accurate, but what does this confidence ignore?