Echoes Down the Years

This chapter examines the history of human-machine assemblages used to speak for the dead, comparing the practices of the nineteenth-century American Spiritualist movement with those of present-day transhumanist mind-uploading. In both cases, forms of mediated communication give the dead a continuing voice in society through a participatory performance involving the medium—a person whose consciousness is suspended in a state of trance, or a set of algorithms—the deceased, and an audience. Mediumship becomes a theater in which audiences both desire and interrogate the capabilities of necro-communication technology. The chapter attends to these technologies’ implied models of selfhood, which disaggregate mental content—software—from the vehicle of its expression—hardware—in the tradition of Cartesian dualism. The chapter argues that the technologies in question inevitably structure, in concerning ways, political notions of possessive individualism, which become commoditized in the shift from human-performed mediumship to selfhood instantiated in proprietary software products.