Loop Quantum Gravity

Concept

A theory that attempts to unify general relativity and quantum mechanics by quantizing spacetime itself, suggesting it is composed of discrete loops.

Mentioned in 9 videos

Videos Mentioning Loop Quantum Gravity

Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence | Lex Fridman Podcast #225

Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence | Lex Fridman Podcast #225

Lex Fridman

A theory of quantum gravity primarily worked on by Lee Smolin, aiming to unify quantum mechanics with general relativity.

Eric Weinstein: Difficult Conversations, Freedom of Speech, and Physics | Lex Fridman Podcast #163

Eric Weinstein: Difficult Conversations, Freedom of Speech, and Physics | Lex Fridman Podcast #163

Lex Fridman

A theory of quantum gravity, seen as growing out of hopes from the general relativistic community but lacking particle theoretic realism.

Joscha Bach: Nature of Reality, Dreams, and Consciousness | Lex Fridman Podcast #212

Joscha Bach: Nature of Reality, Dreams, and Consciousness | Lex Fridman Podcast #212

Lex Fridman

Mentioned as another theory of everything, focusing on a particular unification.

Cumrun Vafa: String Theory | Lex Fridman Podcast #204

Cumrun Vafa: String Theory | Lex Fridman Podcast #204

Lex Fridman

An alternative theory of quantum gravity aiming to merge quantum mechanics and general relativity, described as less subtle than string theory but potentially containing nuggets of truth.

Lee Smolin: Quantum Gravity and Einstein's Unfinished Revolution | Lex Fridman Podcast #79

Lee Smolin: Quantum Gravity and Einstein's Unfinished Revolution | Lex Fridman Podcast #79

Lex Fridman

A theory of quantum gravity that Smolin co-invented, aiming to reconcile general relativity and quantum mechanics. It proposes that spacetime is granular and quantized.

What If Space And Time Are NOT Real?

What If Space And Time Are NOT Real?

PBS Space Time

A theory that attempts to unify general relativity and quantum mechanics by quantizing spacetime itself, suggesting it is composed of discrete loops.

The String Theory Wars and What Happened Next

The String Theory Wars and What Happened Next

Sabine Hossenfelder

An alternative approach to quantum gravity that Lee Smolin supported, but the video suggests it was not progressing.

Doctor Asks Physics Questions (ft @MedlifeCrisis)

Doctor Asks Physics Questions (ft @MedlifeCrisis)

Sabine Hossenfelder

One of the theoretical approaches physicists are exploring to reconcile quantum mechanics with general relativity.

Lisa Randall Interview (Full Episode) | The Tim Ferriss Show (Podcast)

Lisa Randall Interview (Full Episode) | The Tim Ferriss Show (Podcast)

Tim Ferriss

A theoretical framework mentioned in the context of large programs in physics that don't yet directly connect to the observable universe.