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AGPhil: Arbeitsgruppe Philosophie der Physik
AGPhil 7: Philosophy of Cosmology VII
AGPhil 7.1: Invited Talk
Wednesday, March 20, 2019, 16:30–17:15, HS 10
Time travelling in emergent spacetime — •Christian Wüthrich — University of Geneva, Switzerland
Most approaches to quantum gravity suggest that relativistic spacetime is not fundamental, but instead emerges from some non-spatiotemporal structure. This talk investigates the implications of this suggestion for the possibility of time travel in the sense of the existence of closed timelike curves in some relativistic spacetimes. In short, will quantum gravity reverse or strengthen general relativity's verdict that time travel is possible?