299 | Michael Wong on Information, Function, and the Origin of Life
Dec 16, 2024
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Michael Wong, a planetary scientist and astrobiologist, dives into the origins of life and the complexity of biological systems. He discusses the debates between metabolism-first and RNA-first theories, shedding light on how interdisciplinary approaches can enrich our understanding. Wong explores universal principles that govern life's complexity and discusses the roles of functions in both living and non-living systems. He also examines the emergence of functional information and its implications for understanding evolution beyond traditional frameworks.
The exploration of life's origins and evolution, both on Earth and potentially in the cosmos, offers insights into complex biological systems.
Defining 'function' in evolving systems provides a framework for understanding how life adapts and persists in diverse environments.
The discussion on Fermi's Paradox highlights the importance of sustainability for advanced civilizations to avoid existential risks and crises.
Deep dives
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Astrobiology: Understanding the Origins of Life
Astrobiology encompasses the study of life's origins and evolution, both on Earth and potentially elsewhere in the universe. In recent developments, researchers have been exploring the possibility of quantifying concepts such as 'function' and 'selection' in biological systems through equations derived from information theory. This approach aims to provide a more objective understanding of how life develops and gains complexity over time, recognizing that abiotic systems can also exhibit evolutionary characteristics. These insights can help refine our understanding of life's fundamental processes and advance the search for extraterrestrial existence.
The Role of Function in Evolving Systems
Understanding 'function' within evolving systems is essential for analyzing both biological and non-biological phenomena. It refers to processes that significantly contribute to a system's ability to persist and adapt in its environment. For instance, autocatalytic reactions, where products of a reaction catalyze further reactions, exemplify this concept in prebiotic chemistry. By examining such functions, scientists can uncover how systems may evolve and increase their complexity through interactions with their environment.
Functional Information and Its Implications
Functional information serves as a measure of how configurations within a system support its ability to achieve specific functions. This concept suggests that as systems evolve, particularly under selection pressures for persistent functions, their functional information can be expected to increase over time. Examining various systems, including minerals and RNA structures, can help validate this hypothesis and potentially lead to a broader understanding of complex evolving systems' behavior. This approach encourages an interdisciplinary inquiry into the principles governing the emergence of life and complexity in diverse contexts.
Cultural Evolution and Fermi's Paradox
The discussion of Fermi's Paradox reveals insights into the potential trajectories of advanced civilizations, emphasizing the need for sustainability over expansionism. Hypothetical planetary societies might face existential risks if they do not adapt to manage energy consumption and societal practices to prevent 'burnout'. Innovations may temporarily stave off crises, but ultimately, a collective awareness and reorientation towards sustainability could define their long-term viability. This perspective not only reshapes our understanding of extraterrestrial civilizations but also offers reflections on the future path of humanity on Earth.
Living organisms seem exquisitely organized and complex, with features clearly adapted to serving certain functions needed to survive and procreate. Natural selection provides a compelling explanation for why that is so. But is there a bigger picture, a more general framework that explains the origin and evolution of functions and complexity in a world governed by uncaring laws of physics? I talk with planetary scientist and astrobiologist Michael Wong about how we can define what "functions" are and the role they play in the evolution of the universe.
Michael Wong received his Ph.D. in planetary science from Caltech. He is currently a Sagan Postdoctoral Fellow at the Carnegie Institution for Scienceʼs Earth & Planets Laboratory. He is in the process of co-authoring two books: A Missing Law: Evolution, Information, and the Inevitability of Cosmic Complexity with Robert M. Hazen, and a revised edition of Astrobiology: A Multidisciplinary Approach with Jonathan Lunine.