Abstract: In this talk we show that a large class of k = -1 inflationary

FLRW spacetimes dubbed 'Milne-like' admit continuous spacetime extensions

through the big bang. For these spacetimes the big bang is a coordinate

singularity analogous to how the r = 2m event horizon in Schwarzschild is

a coordinate singularity. The geometry of the big bang coordinate

singularity for Milne-like spacetimes is that of a lightcone in a

spacetime conformal to Minkowski space. We discuss how the mathematics of

these Milne-like spacetimes may provide connections to problems in

cosmology.

