A better way to state your question may be the following:
- What do various scientists beleive was the nature of reality before the big bang?
- What do current discoveries made by scientists show about the possibilities of the nature of the universe before the big bang?
- What discipline(s) of science deal(s) with what was the state of the universe before the big bang?
- How is the big bang defined by scientists from various disciplines of science?
If you ask a human to think by a question posed. I don't need to be a scientist by only chosen human cult group status.
As all thinkers are first the human a human who can think for themselves.
Which was a what a natural human theist first did before the practice which proved him wrong not right.
As his thoughts calculus words hasn't owned why created creation existed.
1. Before the big bang which science says is held as evidence is our sun. It expanded.
Stating a higher massed universe existed before. Question 3.
4. Based on universes around other sun stars owning more planets. And our universe scattered planets about one third destroyed.
As all humans use words that explain a conscious human reality by the presence life's light. Which came about inherited by a sun yet natural history out of earths mass first.
So advised twice but a variable advice.
As a consciousness natural study I proved to myself you can only ascertain advised by the conditions naturally advised.