There is a low enough probability for the existence of God to doubt his existence.

If scientists ever allow God as a possible explanation of the data they are observing then, according to your definition, that causes them to cease to be practicing science. That's a catch-22 if you ask me. That's why organizations like the ASA have been formed. They are saying, "Hold on a second! I'm a doctorate-holding scientist and I DO believe in God and for good reason!" God is not the default "cop out" answer to every unsolvable scientific question. God is the creator of all that science is discovering. More and more scientists are embracing the inevitable conclusion that a study of creation supports, even proves, the existence of God. There are some scientists that are so dead set on avoiding this inevitability that they refuse to allow God into the picture no matter what the data says. To the question of why the universe is so finely tuned as to allow atoms to bond, planets to form, suns to radiate, and life to exist the obvious answer is that there is a designer - an "intelligent fine tuner". They are so desperate to avoid this obvious conclusion that they invent other causes that are equally unprovable: Multiverses?! These scientists would have us believe in a metaverse that produces trillions of universes all with different random tunings. Certainly one universe is bound to come up eventually. How else could we be here debating this right now? Now THAT is blind faith! Scienctists pushed to the edge of reason will believe that there is, for the lack of a better name, a "universe creation machine". This machine not only has an infinite amount of energy to draw on but it is sufficiently more advanced in that it can create individual universes with the ability to create life by random unguided uncaused accidental means. Science is willing to believe in such an unprovable universe-making machine with no data and no means possible to prove its existence. Is that the science that you hold in such regard? That begs the question, "What made THAT machine? The meta-metaverse?" Just as no one can answer the question, "What created the universe making machine" so too no one can answer through scientific means "... then who created God." I believe the bible when it says that God is eternal and has always existed. Theism can't prove that God exists nor can science. However, science can, and does, generate ever more undeniable data that says that there MUST be a God. Let's say for the sake of this debate, that God was created. If so then he must have been created by a more supreme meta-God who was created by a more supreme meta-meta-God, etc. infinity. That takes nothing away from the fact that the universe was created by our God. Do you see how futile is is to even place a probability on the existence of God? This is not a debate on evolution. If it were I would be quick to point out that if evolution were proven to be true that it would absolutely not negate God as the cause of the universe. It might make the bible appear to be in error and it would make some theists cringe with embarrassment. It would not in any way deny the only reasonable explanation for "how all this got here" - God! Thank you for your time and thoughtful responses during this debate MYTN.