String theory
Topic
String theory is a theoretical framework in physics in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. It describes how these strings propagate through space and interact with each other, with their vibrational states determining properties like mass and charge. The theory is a major candidate for a theory of everything, aiming to unify quantum mechanics with general relativity.
2 episodes featuring String theory

The Diary Of A CEO with Steven Bartlett
Physicist Brian Greene explains why free will is a physical illusion
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.
Aug 17, 2026 · 2h 11m

Dwarkesh Podcast
Physicist Adam Brown breaks down general relativity and the geometry of gravity
Understanding general relativity from scratch demystifies the universe's most elegant theory and frames how future AI might discover new physics.
Jul 10, 2026 · 1h 38m
