Artificial Minds and the Dilemma of Personal Identity

Artificial Minds and the Dilemma of Personal Identity Christian Coseru (bio) Artificial You: AI and the Future of Your Mind. By Susan Schneider. Princeton: Princeton University Press, 2019. I. Introduction All diurnal organisms are stirred to action by light, but as entomologists have long known, for nocturnal insects the pull of its radiance can also spell doom. The image of a moth drawn to flame is suggestive of the sort of self-destructive behavior that poets have long used to maximum rhetorical effect: "Thus had the candle singed the moth" proclaims Portia in the Merchant of Venice, pitying the fate that befell Arragon. The deceptive lure of artificial lights, however, is no longer mere fodder for the poetic imagination. Ecologists are warning us that species accustomed to navigating by moon or starlight, from beetles to seals and sea turtles, are getting confused, or worse.1 And medical science is beginning to establish a link between night-time light exposure and various sleep and metabolic disorders.2 Yet our Promethean ingenuity is a sight to behold: fueled by illumination tropes as metaphors for awareness and understanding, our mastery of light and of the electromagnetic wave spectrum has brought forth technologies, from CT scans and electromicrography to myoelectric sensors and solid-state lighting, that inspire utopian visions of genetically engineered and neurally enhanced post-humans alongside dystopian fantasies of runaway cyborgs. Among these technologies, AI stands out as the shiny new object commanding our attention. The future envisioned as a result of these technological advancements now includes the prospect of artificial minds, minds that, if they were to come anywhere close to resembling ours, let alone to surpassing human intelligence, would pose serious existential and ethical challenges for humanity. Or so the story goes, if Susan Schneider's compelling foray into AI research is any indication. Indeed, Artificial You: AI and the Future of Your Mind (Schneider 2019) offers a philosophically savvy investigation of the debates that animate much of the contemporary fascination with the prospect of machine intelligence, which by some of the more optimistic End Page 281 measures could be achieved within the lifetime of most millennials.3 As books aimed at a general audience pondering the promises and perils of superintelligent AI go, Artificial You succeeds precisely where most others falter: it brings conceptual clarity to often vague and nebulous claims by techno optimists about the impending emergence of consciousness from computational complexity, while at the same time offering a sober reminder that the technology underlying, say, artificial neural networks is far more advanced than most AI skeptics realize. I will not address Schneider's survey of the state of the art in AI research, which is succinct, informative, and for the most part illustrative of the transhumanist ethos she appears to embrace. Instead, I will focus on the problem of personal identity and the seemingly insurmountable challenges it raises for the prospect of radical human enhancement and synthetic consciousness. Specifically, I will argue that conceptions of personal identity rooted in psychological continuity akin to those proposed by Parfit and the Buddha may not provide the sort of grounding that many transhumanists chasing the dream of life extension think that they do if they rest upon ontologies that assume an incompatibility between identity and change. I will also suggest that process ontologies that take change to be primary, such as those that align with contemporary systems biology, offer a better way out of the personal identity dilemma. But the solution in this case, which regards biological organisms as processes rather than things, may constrain the possibility of biologically inspired superintelligent aliens (BISAs), which Schneider (following Bostrom 2014) posits as possibly the most common form of (extraterrestrial) superintelligence in the universe. II. Enhancement Beyond Recognition Perhaps the central leitmotif of transhumanism is the idea of enhancement by means of current technologies such as genetic engineering and information technology as well as future ones such as nanotechnology and artificial intelligence. The range of enhancement options includes the extension of the human lifespan, the elimination of disease, and most importantly the augmentation of human intellectual, physical, and affective capacities (Bostrom 2003b). Further down the line, enhancement may move beyond merely augmenting existing...