Explore the origins of life on Earth and methods for identifying it elsewhere in the universe in this 34-minute episode of the Santa Fe Institute's podcast. Delve into the signature characteristics of life and common dynamics among organisms beyond our planet with hosts Chris and Abha as they interview two researchers. Examine assembly theory, a controversial new concept for universally quantifying life based on object construction. Gain insights from guests Ricard Solé, External Professor at SFI and Head of the Complex Systems Lab at Universitat Pompeu Fabra, and Sara Walker, External Professor at SFI and Associate Director of the ASU-SFI Center for Biosocial Complex Systems. Discover related resources including books, films, talks, and scientific papers to further your understanding of this fascinating topic.