What if quantum mechanics is not fundamental? What if time itself is an illusion? In this new episode, physicist Julian Barbour returns to share his most radical ideas yet. He proposes that the universe is built purely from ratios, that time is not fundamental, and that quantum mechanics might be replaced entirely with

In today's episode of Theories of Everything, Curt Jaimungal and Julian Barbour challenge conventional physics by exploring Barbour's revolutionary ideas on time as an emergent property of change, the universe's increasing order contrary to entropy, and the foundational nature of shape dynamics. SPONSOR (THE ECONOMIST)

Julian Barbour is the author of the highly regarded The Discovery of Dynamics and the bestseller The End of Time and now, The Janus Point. He received his PhD in physics from the University of Cologne in 1968. He is a past visiting professor of physics at the University of Oxford and lives on the edge of the scenic Cot

Is time what clocks measure, or is it the difference between the shape of two triangles? Explore the answer, and discover: Why Barbour believes the universe is changing shape rather than expanding Why it is important to remember that size is relative What kinematic relativity is, and why it is so essential to Barbour’s