Quantum Theory
Concept
Mentioned alongside Einstein's theory, indicating that these best scientific theories suggest spacetime is not fundamental at tiny scales.
Mentioned in 4 videos
Videos Mentioning Quantum Theory

Top Psychologist, Donald Hoffman: Seeing True Reality Would Kill Us! I Can Prove It To You!
The Diary Of A CEO
Mentioned alongside Einstein's theory, indicating that these best scientific theories suggest spacetime is not fundamental at tiny scales.

Science & Survival: A Conversation with Martin Rees (Episode #323)
Sam Harris
Cited as an example of a scientific revolution.

Physics & Philosophy: A Conversation with Tim Maudlin (Episode #318)
Sam Harris
Mentioned in relation to rival interpretations and non-locality that are part of Tim Maudlin's area of expertise.

Quantum Mechanics and General Relativity (Lee Smolin) | AI Podcast Clips
Lex Fridman
The theory that describes nature at the smallest scales, dealing with phenomena like wave-particle duality and entanglement. Einstein was a founder but later questioned its completeness.