Are we made of junk? Thierry Bardini believes we are. Examining an array of cybernetic structures from genetic codes to communication networks, he explores the idea that most of culture and nature, including humans, is composed primarily of useless, but always potentially recyclable, material otherwise known as "junk." He draws on a widevariety of sources, including the writings of Philip K. Dick and William S. Burroughs, interviews with scientists as well as "crackpots," and work in genetics, cybernetics, and physics to support his contention that junk DNA represents a blind spot in our understanding of life.