“If sound is birth and silence death, the echo trailing into infinity can only be the experience of life, the source of narrative and a pattern for history.” Drawing on Louis Chude­ Sokei’s metaphorical, political, and technopoetic investigations, this volume experiments with how the echo of past ideas of life and form has brought forth the technolo­gies and lifestyles that our contemporary world is based on. The essays, conversations, and artist contributions delineate a variegated array of technologies, creating an image of their past and their future potentials.