h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

As for where the universe came from, before the Big Bang, why don't you read "The Elegant Universe" ... it's an excellent and fairly easy-to-read text about superstring theory, dimensions interlaced with our own, etc. Fascinating reading, and it includes a very clear scientific explanation for this.

As for the rest of your argument, you seem to assume that, without guidance, chemicals would just randomly combine and never tend towards a biological conclusion. I think that, based on the very nature of the chemical elements and the way they combine with each other and react with their local environment, life is something that can occur whenever and wherever the conditions are right.

If you choose to, you can see this as God planning the periodic table towards this end; of course, then, your view will be that your God is the God who created billions of creatures and intelligent races all over the universe, whether they know it or not {a belief which should lead to an interesting Crusade or two in the next few milennia}; or you can believe that life is a happy accident that we should enjoy without trying too hard to impose a belief system on those who don't need it.

Based on Occam's razor, I'll take the latter approach.

Cheers!

--ZZZarniwoop