In Quantum FFF Theory, it is postulated that the Big Bang was the cold explosion of a decaying String nucleus forming the Dark Matter Black Hole of a former multiverse.Big Crunch.
This Big Crunch multiverse black hole will first split into 8 or 12 entangled parts forming ( 8-12) individual but conscious universes each by a big bang.
All single universal cold Big Bangs, are assumed to split into smaller ones and heated up by dual equal sized Herbig Haro Black Holes ( bowshocks) with star/galaxy forming in between.. ( Quantum FFF Theory) FFF =Function Follows Form.
see: https://www.researchgate.net/publication/350458158_Solving_the_Dual_Herbig_Haro_Black_Hole_System_is_Solving_a_String_Theory_of_Everything
The Q-FFF Rigid String Theory says: (1) There is only one CONSTRUCTIVE Topological and Resilient TRANSFORMING STRING (Axion/vacuum Dark Energy building block ), forming direct after the Black Hole Splitting Big Bang. so called Travelling TADPOLE Black Hole based Filaments, expanding the Cosmic Lyman Alpha Structure. (2) A Raspberry Entangled 12x Mirror Copy Multiverse is Postulated as base for uncertainty (ER=EPR) and Libet's FREE VETO WILL . SO We live inside an exploded BH