Wormholes, Black Holes, Phasing

If one were to develop a theorem of black holes, and if one assumed that singularities permit crossing of the time barrier, then a mathematics describing the difference between what is on this side of the wormhole versus the other side might involve using phases.

One might imagine whatever is on this side of the wormhole is blue.  On the other side is red.  Does time flow backwards in red-space, is the gravitational constant different?  Imagining things as being in different phases makes approaching the problem conceptually easier.  Otherwise one might fall into the error of trying to fit that side of the black hole into this phase's physics, likely not permitted by nature.