Beginnings of Cellular Life: Metabolism Recapitulates Biogenesis - Paperbackby Harold J. Morowitz (Author) In this book an internationally renowned scientist presents a radically new theory of the origin of life on Earth 4 billion years ago. Harold J. Morowitz postulates that the first step toward the origin of life was the spontaneous condensation of amphiphilic molecules to form vesicles (or protocells). This hypothesis provides a framework for reexamining the emergence of cellularity. Morowitz further proposes that core