Here's how it works. This universe runs on cause/effect, right? Something happens, it causes something else to happen, that something else causes something else - all of universal history can be viewed as an infinitely complex string of dominoes. This is fully observable, proven, and generally understood.
However, a cause/effect universe has the problem of infinite regress, or the simple question of "how did it start?" After all, in a cause/effect universe everything that exists has a cause. Therefore we're left in a quandry - either infinite regress is possible and somehow the universe has always existed, making it an entity entirely without a cause, or at some point so far back in our history it doesn't pay to think out the numbers something else existed that had no cause, which was the vehicle for creating - well, everything.
Basically this line of reasoning requires consideration of elements too complex for the human brain to fully understand. We may be able to say the words, but understanding the concept is, at present, beyond us.
That's where I'm at right now.
