Embodiment in Whole-Brain Emulation and its Implications for Death Anxiety

Abstract

The awareness of death is a central motivating force behind human activity. Their capacities for abstract and symbolic reasoning give human beings a unique foresight of their finite lifetime and forthcoming demise. Because of the overwhelming nature of this realization, we try to cope with the ensuing anxieties by means of various cognitive and existential strategies. One such strategy is to create a meaningful legacy during one’s lifetime that will outlive the single individual. Whole-brain emulation (WBE) is another approach, but is unusual because of its literal promise to abolish death. Starting from the premise that WBE is feasible and will advance to such a level that we can speak of uploaded minds, we explore the implications of an allegedly immortal existence in a computational substrate: for our embodiment in the first place, and for death anxiety in the second. We argue that uploading would change the nature of, but could ultimately never abolish, embodiment. Instead, the defining characteristic of all brains are their vital links to the bodies that contain them and their interactions with the environment that are mediated by the body. In this light, we discuss the limits of WBE’s potential to mitigate death anxieties: limits related to the (objective) probability of ceasing to exist, but also those that stem from the perception of the body as a proxy for death.