Foundations of Physics 33 (9):1315-1321 (2003)

Authors
J. Brian Pitts
Cambridge University
Abstract
Recently the neglected issue of the causal structure in the flat space-time approach to Einstein's theory of gravity has been substantially resolved. Consistency requires that the flat metric's null cone be respected by the null cone of the effective curved metric. While consistency is not automatic, thoughtful use of the naive gauge freedom resolves the problem. After briefly recapitulating how consistent causality is achieved, we consider the flat Robertson–Walker Big Bang model. The Big Bang singularity in the spatially flat Robertson–Walker cosmological model is banished to past infinity in Minkowski space-time. A modified notion of singularity is proposed to fit the special relativistic approach, so that the Big Bang becomes nonsingular
Keywords bimetric  causality principle  null cones  cosmological singularity
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DOI 10.1023/A:1025641327666
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An Example Relevant to the Kretschmann-Einstein Debate.Rafael Sorkin - 2001 - Modern Physics Letters A 17:695--700.

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Neo-Lorentzian Relativity and the Beginning of the Universe.Daniel Linford - 2021 - European Journal for Philosophy of Science 11 (4):1-38.
Why the Big Bang Singularity Does Not Help the Kal M Cosmological Argument for Theism.J. Brian Pitts - 2008 - British Journal for the Philosophy of Science 59 (4):675-708.

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