The FQXi podcast brings you the latest ideas in foundational physics and cosmology—and includes interviews with our members and other leading scientists. It's hosted by Zeeya Merali and Brendan Foster. You can contact us at firstname.lastname@example.org, and follow us on twitter: @FQXi. The podcast is produced by Zeeya, and music is provided by Baltimore-based Diefenbaker.
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Quantum physicists Andrew White & Martin Ringbauer explain how they used photons to simulate an encounter between a time traveller and its younger self. The results violate Heisenberg's Uncertainty Principle and other quantum laws.
Extended interview with founder of inflation theory Alan Guth, who reviews the doubts cast on the BICEP2 announcement of the discovery of primordial gravitational waves. He also discusses the implications if the results stand up for grand unified theories, the multiverse, and the Planck data.
Investigating the connection between entropy in thermodynamics and information theory could explain why reality is described by quantum theory, as physicists Jon Barrett and Matt Leifer explain to reporter Colin Stuart.