How theoretical and experimental physicists clash, fight, and make physics better | Janna Levin

Physicist Janna Levin discusses the boundaries of reality and experimentation. Theoretical cosmologist Janna Levin discusses the dynamic interplay between theoretical and experimental physics. She highlights how physicists navigate the tension between imaginative theorizing and strict adherence to observed reality — leading to both confining approaches within known laws, and explosive creativity that has transformed our understanding of the Universe. Levin explores questions about the nature of the cosmos, such as the possibility of multiple universes and the enigma of dark matter. She acknowledges the criticism that theoretical work on unobservable phenomena like the multiverse might not fit traditional scientific criteria, but argues that nature may not conform to human definitions. Levin emphasizes the significance of experimental discoveries, like dark matter’s indirect detection through gravitational effects, in shaping our understanding. Ultimately, she asserts that scientific exploration challenges societal limitations, reshaping values and perspectives while underscoring the profound impact of gazing into the cosmos.

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