Well so far all I've done is suggest that we have this inate curiousity which leads us to ask these questions. So far I haven't made any attempt to either provide my own ideas in response or to pass judgement on anyone else's ideas.
I believe it to be inate because, as I said, I think it's just a natural product of human intellect.
My own take on it is that, while we have the intellectual capacity to ask these questions, we don't have the intellectual capacity to know the answers. Or put another way, while we have the intellectual capacity to have this curiousity, we don't have the capacity to satisfy it.
Which puts us in a sorta state of intellectual limbo.
But I also recognize that most of us will never accept that as our reality and will continue to be in denial of that reality. So because of that it really doesn't matter what I think to anyone but me. lol