The existence of God

[smithd]

I'm a Christian looking to have a friendly conversation about the existence of God. I'd like to start with one of the Teleology arguments—that God exists based on how fine-tuned the universe is for life. For instance, physical constants, like the gravitational constant and constants of the strong nuclear force, must be within a narrow range to allow for things like atom formation, hydrogen bonding, galaxy formation, etc. This looks like design. The alternative is chance, which doesn't seem adequate. In other words, naturalism cannot account for the fine-tuning of the universe, while design can easily account for it. This is not a trivial problem, or one that can be ridiculed away, since many respected scientists have pointed out how remarkably (and inexplicably) fine-tuned the universe appears. Thanks for your polite responses.