Quantum mechanics time travel indicates no grandfather paradox | NextBigFuture.com

Dr. Seth Lloyd, an MIT professor and self-described “quantum mechanic,” describes the quantum mechanics behind time travel during a guest lecture at the Institute for Quantum Computing, University of Waterloo. Recorded on Nov. 4, 2010, this is the entire lecture entitled “Sending a Photon Backwards in Time.” Wheeler has the physics theory that positrons are electrons going backwards in time. The early part of the talk is a lot about the many time travel stories. Lloyd indicates that all the stories fall into either the many worlds version or the consistent history version. The consistent history version is that you The post Quantum mechanics time travel indicates no grandfather paradox appeared first on NextBigFuture.com.