The Ayn Rand Institute Podcast

The Origin of Life, Agency & Purpose: Terrence Deacon’s Theory

Nov 11, 2025
Jim Lennox, Emeritus Professor of History and Philosophy of Science, joins to explore the intersection of science and philosophy through Deacon's Autogen Theory. They delve into the mystery of purpose in non-conscious organisms, arguing for a coherent form of goal-directedness. The discussion also touches on the emergence of life, redefining biological teleology, and the implications for free will. They highlight the need for philosophical clarity in scientific models while contemplating how autogens could represent the origins of life.
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INSIGHT

Life Is Self-Repair, Not Just Replication

  • Sherman and Deacon identify living selves by self-protection and self-repair rather than mere replication.
  • They argue reproduction is secondary: reproducing a self-repairing unit is what matters for life.
ANECDOTE

Autogen Thought Experiment

  • Deacon imagines autocatalytic reactions producing protective lipid shells that contain and repeat the process.
  • This autogen thought experiment models how self-protecting, self-repairing proto-life might arise by chance coupling of processes.
INSIGHT

The Self As A Processual Unit

  • The autogen's identity is the dynamic process, not merely a static shell or boundary.
  • Mike Mazza emphasizes the unit is the process that regenerates and persists across open and closed phases.
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