Big Bounce
Definition
A family of speculative cosmological models in which the Big Bang is not the absolute beginning, but a transition from an earlier contracting phase into the present expanding universe.
Literal meaning
A proposed cosmic bounce from contraction into expansion.
Esoteric meaning
Netism is naturally drawn to Big Bounce language because it echoes the Law of Cycles: expansion, contraction, dissolution, and return. That resonance is meaningful inside Netist theology, but it should not be presented as settled physics.
Allegorical meaning
A cosmic inhale followed by an exhale: the universe gathers into hidden density, then opens again into form.
Extended meaning
Big Bounce is not one single proven theory. It includes several approaches, such as loop quantum cosmology, cyclic or ekpyrotic models, and conformal cyclic cosmology. These models differ in their mathematics and assumptions, and none has replaced standard Big Bang cosmology. In Netism, Big Bounce is best used as a correspondence point: it gives modern language for imagining cosmic recurrence, while the Netist cycle-ladder gives religious and symbolic meaning to recurrence. Keep those layers separate.
Avoid saying that the Big Bounce is the standard scientific version of Netist cosmology. It is an interesting family of hypotheses, not a confirmed map of the universe.
Usage
Use this term when discussing cyclic cosmology, the Law of Cycles, cosmic expansion and contraction, or the difference between Netist symbolism and scientific models.
Comparative tradition
Cyclic creation appears in Hindu cosmology, Stoic ekpyrosis, and other traditions that imagine worlds dissolving and returning.
Science correspondence
Loop quantum cosmology, cyclic and ekpyrotic cosmology, conformal cyclic cosmology, quantum-gravity approaches to the early universe, and continuing debate over whether a pre-Big-Bang phase can be tested observationally.