I’m going to propose the idea that the event commonly referred to as, the “Big Bang” is in reality a localized event, and not a singular event nor self-cyclic. I shall refer to these events as “Bangs”.
The Universe is literally infinite, without a beginning or an end to both space and time. It has always existed and always will. There was no “creation” of the Universe, there will never be an “end” of the Universe, and there will never be an eventual inevitable spread of entropy into a “frozen” homogeneous Universe.
These Bangs happen over enormous time spans and anywhere in the Universe. They are so far apart that the gravity and photons from other Bangs have a near-zero direct effect on other portions of the Universe where other Bangs are occurring. The matter and energy from any Bang is always in a constant state of chaotic flux, moving over time to spread unpredictably into other areas of the Universe that will eventually condense and then create other new Bangs.
I have no direct evidence of this Idea, but it seems to me a more plausible idea than the idea of “nothing” suddenly becoming “something”.