No matter how the universe works you will always say "See look, what are the chances of the universe turning out like this!!!".
No, becasue out of the infinitude of possible "universes" only an infinitessimal fraction of those are capable of bringing forth life. You only have to tweak the fundemental constants by very small margins to change the nature of the universe completely, so that we don't have stars (or for not very long), we don't have the elements, we don't have water, etc, etc. Why should we exist at all? We live in a very special universe, simply becasue we are here to notice that it is very special. This smacks of design. I won't always say that the universe has a very small chance of being this way, because in virtually all cases, I (and the rest of life) won't exist!
BUT if we allow for not just one "universe", but a large number (possibly infinite) then of course there are going to be universes (no matter how improbable) where conditions are going to be suitable for our existence. Then surprise, surprise, we find ourselves in such a universe!
We have long had mechanisms for "infinite" numbers of "universes" - the oscillating version of big bang was the first I guess, though it was pure conjecture and not actually a real solution of GR. Here you have an infinite sequence of big bangs and big crunches, each universe following sequentially after the previous. There have been subsequent models in extended GR which mimic this kind of behaviour, and plenty of black-hole solutions provide an infinite number of universes (tho' whether phyisically viable is another matter). Then Linde (amongst others) in the 90s proposed his bubble nucleation idea, where "universes" are springing up all over an encompassing "multi-verse". This has been given a nice formal setting in M-theory with our colliding branes providing the mechanism for the nucleation.
What I am saying is that our observable universe is so cut-out for life, it's incredible... so incredible that it credibly gives rise to design arguments. BUT if enough universes can come and go then the incredible just becomes the possible, if not the probable. And the design argument is invalidated.
You cannot "prove" God by looking at the universe. To leave fingerprints, you require grease, and God does not have greasy hands :-)