In another thread I was arguing that leaving aside reasonable physical conditions that are added independently from the math of GR, [wich I consider basically the EFE, the EP, general covariance and the metric and curvature tensors in the neighbourhood of points that solve the EFE in the context of background independence from any fixed geometry that might be inferred], there is no grounds strictly to discuss about global properties of spacetimes like singularities other than as informed speculations based on what subjectively one might consider to be reasonable physically or more pleasing aesthetically or more convenient under certain particular coordinates but certainly not as something derived from the math of GR by the inherent locality of the EFE solutions determined by the absence of an absolute spacetime of constant curvature like in the Minkowski case in SR and the fact that the symmetries in GR are determined by the Diif group of GR, i.e. invariance under arbitrary local changes of coordinates .(adsbygoogle = window.adsbygoogle || []).push({});

Any commnets to the points above?(please be specific)

see for instance http://physics.stackexchange.com/questions/111670/global-properties-of-spacetime-manifolds for background

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# What can be said about S-T global properties from the EFE?

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