S3E1 - Rethinking Life: Beyond Earth-Centric Definitions

You are listening to Curiosity Curated. I am Zong.What you just heard is the greeting from Kurt Waldheim, the fourth Secretary-General of the UN. It was the first track from the most epic album of all time, the Voyager Golden Record, attached to both Voyager 1 and 2 space probes, currently 24 billion km away from Earth. It was made by a team of scientists, artists, and historians hoping that one day other intelligent life forms might find it.Today, we're diving into the fascinating world of astrobiology, pushing past the familiar, and asking: what does it really mean for something to be alive? Our guide on this journey is "Life as No One Knows It: The Physics of Life's Emergence" - a thought-provoking book by theoretical physicist and astrobiologist Sara Imari Walker.Walker challenges the traditional ways we define life. Are those definitions too narrow, too focused on what we know here on Earth? She doesn't think they go far enough. Instead, she wants us to view life as something woven into the very fabric of the universe, something that might surprise us. At the heart of her exploration is assembly theory, a concept she co-developed with Lee Cronin, the Regis Professor of Chemistry at the University of Glasgow, a new way of thinking about how life emerges and leaves its mark on the universe. Assembly theory proposes that the complexity of life, the intricate structures and processes we observe, are a direct result of a long history of building and selection. It's like a cosmic game of LEGO, where the rules of physics dictate which pieces fit together, and life emerges from the incredible variety of structures that can be built over time.Walker argues that this process of assembly, of building complexity step-by-step, is not just a feature of life on Earth but a fundamental principle that could be at play throughout the cosmos. If we can learn to recognize the subtle fingerprints of assembly, we might just unlock the secrets to finding life as we don't know it, hidden on distant worlds or even in the unexpected corners of our own planet.Prepare to expand your mind as we grapple with these profound questions alongside Sara Imari Walker and explore the captivating world of "Life as No One Knows It."01:26 Episode Intro03:50 Why Traditional Definitions of Life Fail, According to Sara Imari Walker05:08 The Limitations of Trait-Based Definitions08:29 Erwin Schrödinger’s Definition of Life11:04 Free Will and Agency13:08 The Need for a Paradigm Shift: Towards a Physics of Life20:15 Assembly Theory(Sources:Life as No One Knows It: The Physics of Life's Emergence by Sara Imari Walker.Sara Walker: Physics of Life, Time, Complexity, and Aliens | Lex Fridman Podcast #433The Origins of Life with Sara Imari Walker | STARTALK with Neil deGrasse TysonHow do scientists measure—and define—life? with Lee Cronin | Big ThinkFor any feedback, please contact: [email protected])Opening Music: Polaris by SVVNClosing Music: Who Am I by Dario Lupo前往小宇宙评论区与主播互动