This makes sense if we don’t consider the Big Bang as the “creation” of our universe but rather just another event that happens in it.

Thermodynamic laws and how our universe is expanding are both fairly well understood. Is it too much of a stretch to think that our universe has gone through many expansion and contraction cycles?

It expands until heat death, then black holes take over. These black holes slowly swallow all matter and then finally merge with other black holes. Over an unthinkable amount of time I’d imagine all those black holes become one, bringing about the concentration of mass necessary for another big bang.