Into the Impossible With Brian Keating Perspectives on the Theory of Everything with Eric Weinstein, Sabine Hossenfelder, & Lee Smolin
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Aug 8, 2024 
In a fascinating discussion, theoretical physicists Eric Weinstein, Sabine Hossenfelder, and Lee Smolin dive into the complexities of the Theory of Everything. Weinstein critiques current paradigms and presents his geometric unity theory. Hossenfelder emphasizes the need for accountability and diverse methodologies in quantum gravity research. Smolin debates the philosophical implications of beauty in physics. They also tackle the resource allocation in the field and offer advice for aspiring physicists, pushing for fresh ideas in the quest to unify fundamental laws of nature.
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Meanings of "Theory of Everything"
- A "theory of everything" has different meanings, from unifying particle physics to completing quantum theory.
- Lee Smolin suggests focusing on how laws evolve, similar to biological evolution.
Physics' Incompatibility Problem
- Current physics relies on two incompatible theories: Standard Model (for particles) and General Relativity (for gravity).
- These clash in extreme conditions like black holes or even particle superpositions.
Quantum Gravity Approaches
- String theory posits everything is made of strings and elegantly produces gravity.
- Asymptotically safe gravity, less known, successfully predicted the Higgs mass.