In an earlier essay (“Eons of the universe”), I have postulated a supersymmetry transformation at the end of a forever expanding universe to the beginning of a new universe. Supersymmetry refers to the postulated fact that each subatomic particle has a partner of the opposite kind: i.e. a fermion has a boson partner and vice versa. The transformation would involve the change of all particles into their supersymmetry partners, e.g. all bosons into fermions. At the end of an increasingly cold and dark universe, all still existing matter would condense into a huge ball of Bose-Einstein condensate in which the bosons can coexist in the same place at the s~me time. But the ,transformation would flip them all into fermions, which cannot occupy the same place at the same time and so a huge explosion would occur: the new Big Bang. (White hole into Black hole.)
I considered this fanciful, since no one to my knowledge had ever envisioned such a transformation. But now a modified version was mentioned by Morris (“The Universe, the Eleventh Dimension, and Everything”). According to him, at time zero of the Big Bang, we can postulate that. the huge amount of matter, which was positive, was almost exactly cancelled. by the huge amount of negative qravitational energy; so there never was all the matter of the universe squeezed into a singularity point.
It can then be inferred that what happened at time zero was a massive conversion of energy into matter, i.e. of bosons intofermions. This comes very close to my postulated supersymmetry transformation of a Bose-Einstein condensate into a fermion explosion initiated by the Pauli exclusion principle active in Fermi-Dirac statistics. He does not state that this is a recycled universe, like I do. He considers a recycled universe unlikely, because it would be degraded. But I think that in a supersymmetry transformation it would not be degraded. It is a fresh new start, not a replay of the old history.