Aug 17, 2026 · 2h 11m
Physicist Brian Greene explains why free will is a physical illusion
Top Scientist REVEALS: A Kid In The 29th Century Could Have Made This World! | Prof Brian Greene
By examining the universe through the lens of physics, we can understand why our brief existence is deeply meaningful despite the inevitable decay of all matter.
- 1Human actions are governed by the lawful unfolding of physical particles, making free will a scientific illusion.
- 2Consciousness is an emergent physical process, raising the possibility that superintelligent AI systems could achieve genuine sentience.
- 3The eventual thermodynamic decay of the universe makes our brief era of conscious life incredibly rare and valuable.
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Brian Greene uses the metaphor of the Empire State Building to illustrate the vast timeline of cosmic history and the eventual decay of all matter.
The brief
Theoretical physicist Brian Greene joins Steven Bartlett to explore how the fundamental laws of physics govern everything from the cosmic timeline to our daily lives, challenging our deepest assumptions about existence.
Greene argues that free will is an illusion, describing human actions as the lawful unfolding of physical particles. Under this view, consciousness is not a mystical force but an emergent physical process governed by entropy.
The rise of artificial intelligence forces us to reconsider the nature of consciousness. If physical particles in a brain can produce feelings, recursively self-improving AI systems could eventually achieve genuine sentience.
Using the metaphor of the Empire State Building, Greene maps out the ultimate demise of the cosmos. As protons decay and the universe fades to cold darkness, our brief era of conscious life becomes incredibly rare and special.
Featuring
Brian Greene
Consciousness
Entropy
Artificial IntelligenceListen to the full episode and explore every guest, topic, and moment on PodLume.