Jeanette Winterson’s 2019 novel Frankissstein is a contemporary re-reading of Mary Shelley’s classic Gothic text Frankenstein that profoundly challenges ideas of what it means to be human in the present day, by drawing on posthuman ideas about the constitution of the self. In this novel, Winterson portrays various forms of ‘monsters’ such as AI, lifelike sex dolls and transgender embodiment. Drawing on both Frankenstein as a text and the infamous creation story of the novel, Winterson creates a deeply intertextual cast of characters that blurs the following: Ry (Mary Shelley), a transgender doctor, Ron Lord (Lord Byron), the creator of a line of sex bots, and Professor Stein (Frankenstein), a scientist interested in AI and cryopreservation. Framed by vignettes of Shelley’s composition of Frankenstein, these characters draw together a set of highly contemporary desires and anxieties about the relationship between the social and science, the ways in which matter is always articulated through both the discursive and the material, and how, to quote Karen Barad, “what often appears as separate entities (and separate sets of concerns) with sharp edges does not actually entail a relation of absolute exteriority at all” (“Posthumanist Performativity” 803). Winterson implicitly and explicitly explores ideas of the posthuman—for instance, in the novel Stein gives a lecture titled “The Future of Humans in a Post-Human World” (74)—and suggests that the future is one in which “binaries belong to our carbon-based past” (72), in ways both liberating and disturbing. While Stein talks about our posthuman future of overcoming even death with the zeal of an evangelist, Winterson undercuts this celebratory rhetoric by situating these emerging forms of self-making in a lineage of the monstrous—”Frankenstein was a vision of how life might be created—the first non-human intelligence” (27)—that suggests the posthuman itself to be a kind of monstrosity. For Winterson, the contemporary monster is one bound up in technologies of self-making, an ambivalent process of both promise and danger that entangles us with monstrosity: “Frankenstein in the monster ... the monster in Frankenstein” (130). Drawing on posthuman theory, I propose that we can read Winterson’s novel as suggesting that modern subjectivity in itself has become defined by hybridity, a mixing between human and non-human elements that problematises many of the boundaries of selfhood that Enlightenment humanism valourised for so long. As Donna Haraway famously said in her “Cyborg Manifesto”: late Twentieth-century machines have made thoroughly ambiguous the difference between natural and artificial, mind and body, self-developing and externally designed, and many other distinctions that used to apply to organisms and machines. Our machines are disturbingly lively, and we ourselves frighteningly inert. (11) Against this historical backdrop, Winterson suggests that new forms of being human—or becoming posthuman—are emerging, in which sex, gender and sexuality have become profoundly entangled with various forms of biological and informational technology. “We’re still biology but we’re better biology” says Stein (113), suggesting that the future holds new forms of modifications of the body, including smart implants and the uploading of consciousness to computing systems. In situating transgender treatments, AI and sex-bots in a lineage of the monstrous that begins with Frankenstein, Winterson (as much as posthuman theorists), is interested in the way that new forms of technologies mean that all subjectivity has become monstrous itself. But what might it mean to be posthuman? Feminist philosopher Rosi Braidotti has suggested that our post-Enlightenment, posthuman era is one in which the category of the human has become problematised. She says, “not all of us can say, with any degree of certainty, that we have always been human, or that we are only that” (1). For Braidotti, women, people of colour and LGBT people have never been accorded fully human status, and as such the rapid technological change that has challenged humanity as a category is to be embraced, if not precisely uncritically. She argues that posthuman subjectivity is notable for the way that it collapses the boundary between nature and culture, and for the interweaving between human and non-human elements in contemporary life. I want to suggest that one name for those subjects that Braidotti describes that ‘have never have been quite’ human is monster. The figure of the monster deployed by Winterson is one that haunts contemporary ideas of sex, gender, and sexuality. Nikita Mazurov has called the monster a “continuous, unstable project of both disassembly or ex-figuration and of unsanctioned coupling” (262), a posthuman praxis of “hybridity of form” that challenges state-sanctioned productions of the self. The monster challenges ideas of fixity, the metaphysics of presence and essence that created the humanist project. It is, in this sense, abject in the sense that Julia Kristeva famously described, as that which “disturbs identity, system, order [and] does not respect borders, positions, rules. The in-between, the ambiguous, the composite” (4). The composition of the monster collapses such foundational binaries as male/female, gay/straight, dead/alive, human/machine, human/animal, black/white, and inside/outside. “The monster is one who lives in transition”, as Paul Preciado says (“Can the Monster Speak” 20). Monsters have therefore historically done profound cultural work, for as Jack Halberstam has said, “monsters have to be everything the human is not...