Things That Make My Head Hurt

Over my Thanksgiving holiday, I had a particle physicist attempt to explain string theory, the anthropic landscape, and the mathematical probability of God to me. I confess to something less than a complete understanding of a partial explanation, but this is what I gleaned: (1) The rate of expansion of our universe is slow enough so that it is not a universe that is likely to have occurred by chance, (2) it is possible that there is an unknown principle of physics that determines that our universe is the only universe that could exist mathematically, or (3) it is possible that our universe is one of an infinite number of parallel but unobservable universes, and that we only know about our universe because it gave rise to us, or (4) some kind of creator (not necessarily divine and not necessarily still in existence) created the particular quantum "vacuum state" that resulted in our universe when it expanded, and the rest is history. Remarkably, hypothesis (4) is apparently more probable to many scientists than hypothesis (3), although the expansion of the initial "vacuum state" that created our universe would most likely have obliterated any "creator" that existed in any kind of conventional physical form.