That does indeed conjure visions of a complex manifold, but I don't see the necessity for any kind of a complex geometry (Occam) or a reversal (even going forward in time) of any kind. I see it more as a constant forward motion around universal meridians and back to the creative singularity that existed and was responsible for the previous beginning, which always lies beyond our event horizon in the black hole at the center of the toroid. Meridian Please Register or Log in to view the hidden image! Equator Please Register or Log in to view the hidden image! (Note; IMO, the donut hole should close into a singularity) If the Universe is indeed a dynamical toroid, its surface geometry should start retracting once it passed the donut's lateral equator and we should be able to observe old galaxies coming back into view as the universal 2D spacetime fabric shrinks toward the universal black hole, where it compresses back into a singularity, breaking down all matter back into it's three elementary particles, until a threshold mega quantum event recreates the BB and super luminal inflation momentarily drives the dynamic motion around the toroidal geometry in an endless recycling of the universe. A chronological wavelike 2D surface evolution of a renewing toroidal geometry.