Remarks on a Decrumpling Model of the Universe

TL;DR

This paper examines a decrumpling cosmological model, revealing that when treating the full Einstein equations with constant integer dimensions, the universe's singularity cannot be avoided, contrasting with previous models that suggested nonsingular solutions.

Contribution

It demonstrates that using the complete Einstein equations with fixed spatial dimensions leads to singularities, challenging earlier nonsingular decrumpling universe models based on partial equations.

Findings

Full Einstein equations imply unavoidable singularities.

Partial equations previously suggested nonsingular models.

Turning points are absent in the full-equation approach.

Abstract

It is argued that when the dimension of space is a constant integer the full set of Einstein's field equations has more information than the spatial components of Einstein's equation plus the energy conservation law. Applying the former approach to the decrumpling FRW cosmology recently proposed, it is shown that the spacetime singularity cannot be avoided and that turning points are absent. This result is in contrast to the decrumpling nonsingular spacetime model with turning points previously obtained using the latter approach.