Dear everyone. between the big crunch and the big bang there is what i believe to be nothing, mathematical 0, what happens past this point is simple mathematics, the creation of numbers out of nothing. 0 can be expressed as 1 + (-1) there goes your matter and negative matter (i call it negative matter because in the time between the crunch n bang i believe there to be no need for energy even as the creation of our universe is simply conceptual math. 0 could be expressed as (2+2) + (-4). you can play around with a bit, lets say within universe a we have a positive 2 and a negative 2, well negative 2 can be simply expressed as 0-2 which means we have nothing (0) from which we can seperate out even more universes. perhaps there is not a simple linear bang and crunch but a multidimensional fireworks show of crunches and bangs sometimes overlapping, sometimes completely seperate from each other.