‘What caused the big bang?’ is the question here covered. In this video there is emphasis on the fact that time and space are products of the big bang and therefore cannot be part of the cause. Even more interesting is the failure of causality. What is causality but conjoined events or things? Since neither exist without space or time, cause and effect then have no place before the big bang!
What does this mean?
It means that to seek the cause of the big bang is to show the inadequacy of our minds in this respect.
The video concludes quite nicely (and quite rightly) saying that that process which is beyond our experiences, that inexplicable X of creation and existence, is so very far beyond even imagining. (At least for now.)
But watch for yourselves. It’s only ~6 minutes.