Do space and time truly exist? What is reality made of? Can we understand its deep texture? Scientist Carlo Rovelli has spent his whole life exploring these questions and pushing the boundaries of what we know.

He describes how our understanding of reality has changed throughout the centuries, from the philosophers and scientists of antiquity to contemporary researchers into quantum gravity.

Episode 3: The Quantum Leap
Twentieth century discoveries in the fields of quantum science provide the basis for our contemporary understanding of the nature of the world - but also pose questions about the very fabric of reality.

Author: Carlo Rovelli
Reader: Mark Meadows
Abridger/Producer: Sara Davies

A Pier production for BBC Radio 4. Show less