Prespacetime Journal ("PSTJ," http: //www.prespacetime.com) is a publication in which physicists, mathematicians and other learned scholars publish their research results and express their views on the origin, nature and mechanism of spacetime and its possible connection to a prespacetime. It is also a journal where all learned scholars can present their models and experimental results on elemental particles, fundamental forces including gravity and related topics. This is PSTJ Volume 5 Issue 4 first published in April 2014. It is a Focus Issue entitled "Progress in Topological Geometrodynamics (TGD)" featuring Matti Pitkanen's latest work contains following articles: (1) Interpretation of BICEP2 Results in TGD-based Cosmology; (2) Negentropic Entanglement, NMP, Braiding & Topological Quantum Computation; (3) General Ideas about Octonions, Quaternions and Twistors; and (4) Recent View about Kahler Geometry and Spinor Structure of WCW.
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