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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:17050043  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Shape Dynamics: Perspectives and Problems
Speaker(s): Julian Barbour
Abstract: Shape Dynamics(SD) can be derived from principles that differ in significant respects from Einstein's derivation of GR. It requires a spatially closed universe and allows a smaller set of solutions than GR does for this case. There are indications that its solution space can be fully characterized and endowed with a measure. These architectonic features suggest that SD can explain the arrows of time as direct consequences of the law of the universe. They do not require special initial conditions. I will discuss these and other major issues on which SD may cast light. I will also discuss the problems that face SD.
Date: 15/05/2017 - 9:35 am
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