Reinterpreting the Big Bang in BFSSU Cosmology / BFSSU宇宙論におけるビッグバンの再解釈

Short Abstract This study proposes a theoretical reinterpretation of the Big Bang as a child-universe generation event within BFSSU (Black Hole Fractal Steady-State Universe) cosmology, rather than the absolute origin of the entire universe. The standard Big Bang model successfully explains major observational evidence, including the Cosmic Microwave Background (CMB), primordial nucleosynthesis, and cosmic expansion. The present work fully accepts these observational achievements while arguing that they do not necessarily imply the absolute beginning of all existence. Within BFSSU cosmology, reality is described as a hierarchical structure consisting of parent universes and child universes connected through black holes. In this framework, the Big Bang is interpreted as the child-universe counterpart of black-hole formation in a parent universe. The observed high-temperature, high-density phase, the CMB, primordial nucleosynthesis, and cosmic expansion are consequently understood as natural outcomes of the early evolution of a newly generated child universe. The study further examines the absence of physical singularities, the restoration of structural continuity, the symmetry between black holes and the Big Bang, and the consistency of this interpretation with a hierarchical cosmic circulation model. These considerations demonstrate that the observational successes of standard cosmology can be preserved while extending its ontological interpretation. Rather than rejecting the Big Bang, this study repositions it within the hierarchical framework of BFSSU cosmology and provides a conceptual foundation for interpreting the Big Bang as a local cosmic generation event rather than the absolute beginning of reality. ORCID: https://orcid.