Brian Cox: "Something Massive Existed Before The Beginning Of Time" Tha cold Dark Matter Black Hole Singularity of the former universe.

In a cyclic Big Bang theory,  like the Q-FFF Theory, there is a former remains of the former universe.

In Q-FFF Theory, The remians of the former universe is a ball of  elements called Strings. which are compacted by the decreasing Axion Vacuum pressure, until this pressure is in equilibrium with the internal stress pressure of the Ball if Strings, (Dark Matter Strings) These String however are assumed to be the constituences of all compound particles like

Fermions Quarks etc.

The pressure seems to be decreased by the absorption of all the merged black holes of the vacuum virtual Axion particles.  see: https://bigbang-entanglement.blogspot.com/