2014/07/27 by George F R Ellis · 1 citation
Physics and Astronomy · #gr-qc #hep-th
paper · pdf · doi:10.1111/nyas.12559
published as Ann N Y Acad Sci. (2014) Oct;1326:26-41 · 23 pages,4 figures
arxiv created 2014/07/27 · arxiv updated 2015/06/22
It is proposed that spacetime should be regarded as an evolving block universe, bounded to the future by the present time, which continually extends to the future. This future boundary is defined at each time by measuring proper time along Ricci eigenlines from the start of the universe. A key point is that physical reality can be represented at many different scales: hence the passage of times may be seen as different at different scales, with quantum gravity determining the evolution of space time itself but quantum field theory determining the evolution of events within spacetime .The fundamental issue then arises as to how the effective times at different scales mesh together, leading to the concept so global and local times.