  The cosmological concordance model is consistent with all available
observational data, including the apparent distance and redshift relationship
for distant supernovae, but it is curious how the Milne cosmological model is
able to make predictions that are similar to this preferred General
Relativistic model. Milne's cosmological model is based solely on Special
Relativity and presumes a completely incompatible redshift mechanism; how then
can the predictions be even remotely close to observational data? The puzzle is
usually resolved by subsuming the Milne Cosmological model into General
Relativistic cosmology as the special case of an empty Universe. This
explanation may have to be reassessed with the finding that spacetime is
approximately flat because of inflation, whereupon the projection of
cosmological events onto the observer's Minkowski spacetime must always be
kinematically consistent with Special Relativity, although the specific
dynamics of the underlying General Relativistic model can give rise to virtual
forces in order to maintain consistency between the observation and model
frames.
