I think that the simplest way to deal with the fine-tuning argument is to ask: if god had tuned the universe differently, would he be unable to create life? If so, he is limited by some external factor, and now we have an additional step to regress. If not, then the universe does not require fine-tuning at all, so it's a poor argument to make for the existence of a creator.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould
