Concerning the quantum mechanics vs. believeing in god: Those are two very different things that cannot be compared that easily. You can't apply a logic that just works within spirituality with a logic that just works in the field of science. If you feel like comparing these two, you need to come up with a system that includes both and makes sense of them as existing in one reality. Here's the thing though, if you are spiritual and just say, well if you can't explain it, it's god, thats kind of cheap in my book. The other way around you have something to strive for, truth in science. Back in the day we couldn't explain the sun, or planets, we didn't know the earth was round or how it was created. Now we can have answers to these things that interconnect with each other to form a scientific worldview that can explain lots of things without contradiction, that's damn hard to do, but we did it. Sciencs always proofs to be true and delivers practical solutions to problems of a magnitude that religion doesn't offer. Religion can solve other problems as finding meaning in life, hope or salvation.