My theory is that, from this side of creation, it could look like a “big bang”. Doesn’t mean it was. That center spot in the universe where all of the galaxies are fleeing from is where God’s mouth was when He spoke it into existence.
no
go over the events of what happened from the big bang till now
record in order what was made, what was formed, when it was formed
then, compare it to th days of creation
they are different, so different they are not comparable