In Liminal Lives Susan Squier examines the ways in which the traditional exclusionary binary between fiction and science is a false one. Whereas science is often viewed as being concerned with the factual, and fiction to be concerned with the imaginary and never the twain shall meet, Squier argues that fiction, particularly speculative fiction, not only tends to foresee future scientific advances before they become reality, but also explores many of the ethical, biological, environmental, and social implications that these discoveries will entail before scientists have to deal with them. So rather than being separate entities with non-overlapping magesteria, to paraphrase Stephen Jay Gould, science and fiction in truth concern themselves with the same topics, approaching them in different ways. Squier contends that rather than maintaining their traditional distance, practitioners in each discipline would find it more valuable to engage with each other.
The particular focus of the book is on the idea of "liminal lives" which represent the blurring and redefining of the definition of human life which has resulted from scientific advances. Each chapter examines a topic in light of examples of speculative fiction and the scientific discoveries that made the concept a reality. I felt that the stories she selects for each chapter, while meant to only serve as representational pieces, encapsulate a lot of what is most exciting about science fiction and I found myself wanting to see if I could look up these stories and read them. The histories of the various scientists and their discoveries are absolutely fascinating, and Squier explains the importance of their work and its scientific aspects in ways that are understandable to non-specialists. I would be very remiss if I didn't mention that this book includes some scientists' own attempts at creative production and there is something wonderful about reading a researcher's poem about the cellular process told from the cell's standpoint.
I highly recommend this book. It made me excited about science fiction again and led me to reconsider many of the assumptions I unconsciously held about science and fiction. Squier has done an excellent job with her research and crafted a highly readable theory book--an achievement in itself.