This chapter argues that Leonard Shelby, protagonist of Memento, is a model of selfhood in the Anthropocene. His subjectivity is self-reflexive as he, despite impaired memory, shapes his identity and course of action in a recurring cycle of signs. Recording clues by Polaroid camera and tattoos, he becomes a human artifact, a cyborg or 'spiritual automaton … reflected in its own content," as Deleuze writes, displaying externalized memories like hieroglyphics, positioning himself existentially in an encircling mental ecology where he finds himself cast away: humanity "thrown" on the shore of a new era.