What is life? What is water? What is sound? In Sounding the Limits of Life, anthropologist Stefan Helmreich investigates how contemporary scientists--biologists, oceanographers, and audio engineers--are redefining these crucial concepts. Life, water, and sound are phenomena at once empirical and abstract, material and formal, scientific and social. In the age of synthetic biology, rising sea levels, and new technologies of listening, these phenomena stretch toward their conceptual snapping points, breaching the boundaries between the natural, cultural, and virtual. Through examinations of the computational life sciences, marine biology, astrobiology, acoustics, and more, Helmreich follows scientists to the limits of these categories. Along the way, he offers critical accounts of such other-than-human entities as digital life forms, microbes, coral reefs, whales, seawater, extraterrestrials, tsunamis, seashells, and bionic cochlea. He develops a new notion of "sounding"--as investigating, fathoming, listening--to describe the form of inquiry appropriate for tracking meanings and practices of the biological, aquatic, and sonic in a time of global change and climate crisis. Sounding the Limits of Life shows that life, water, and sound no longer mean what they once did, and that what count as their essential natures are under dynamic revision.

Life is not what it used to be. In the final years of the twentieth century, emigres from engineering and computer science devoted themselves to biology and made a resolution: that if the aim of biology is to understand life, then making life would yield better theories than experimentation. Armed with the latest biotechnology techniques, these scientists treated biological media as elements for design and manufacture: viruses named for computers, bacterial genomes encoding passages from James Joyce, chimeric yeast buckling under the metabolic strain of genes harvested from wormwood, petunias, and microbes from Icelandic thermal pools. In Synthetic: How Life Got Made, cultural anthropologist Sophia Roosth reveals how synthetic biologists make new living things in order to understand better how life works. The first book-length ethnographic study of this discipline, Synthetic documents the social, cultural, rhetorical, economic, and imaginative transformations biology has undergone in the post-genomic age. Roosth traces this new science from its origins at MIT to start-ups, laboratories, conferences, and hackers' garages across the United States even to contemporary efforts to resurrect extinct species. Her careful research reveals that rather than opening up a limitless new field, these biologists' own experimental tactics circularly determine the biological features, theories, and limits they fasten upon. Exploring the life sciences emblematic of our time, Synthetic tells the origin story of the astonishing claim that biological making fosters biological knowing.