PBS Space Time PBS Space Time

Theory of Everything Controversies: Livestream

Sep 15, 2026 · 1h 30m

Summary

PBS Space Time explores the impasse in finding a theory of everything, featuring guests Eric Weinstein, Sabine Hossenfelder, and Lee Smolin. The panel debates the failures of string theory and grand unification, arguing that the community has prioritized mathematical beauty over testable predictions and neglected the foundational inconsistencies between quantum mechanics and gravity. While Hossenfelder criticizes the lack of empirical progress, Weinstein and Smolin propose alternative approaches like geometric unity and evolving laws, sparking a heated discussion on the scientific method an…

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