The Big Bang: Echoes of Another Universe — A Cyclic Universe Hypothesis Based on Black Hole Consolidation and Rebound

This paper proposes a repeating cosmological sequence in which black holes absorb matter and merge, ultimately consolidating the contents of a universe into a terminal black hole. Extreme compression is hypothesized to trigger a transition from gravitational collapse to renewed expansion, initiating another cosmic cycle. The central conjecture is that the terminal state cannot sustain continued collapse once a presently unspecified physical threshold is reached. This paper records the proposal, distinguishes its assumptions from established observations, and identifies the work needed to turn it into a predictive physical model. It does not provide a derivation, a measured threshold, or evidence that all black holes will merge. Related black hole and bounce proposals are acknowledged without treating them as confirmation of this particular sequence. Concept paper by Robert Turner. Not peer reviewed. AI assistance was used for organization, reference discovery and editorial preparation, as disclosed in the paper.