Science can only judge that which is part of the natural universe, that which is observable. That which is supernatural is by the fact that it is above or outside nature, outside the realm of science to quantify. So, even though I'm an atheist, I really don't see any biological processes or simulated biological processes as an inherent justification for the assertion that no god exists.If it happens then there is no God.
But NOBODY is trying though so until then I guess I get to live in a fog of delusion since NOBODY will try it.
Now, science can be used to show that aspects of religious dogma are incorrect, things like the world is flat, the sun revolves around it, humans and everything on the planet were popped out of thin air 6000 years ago as they exist in their current forms, etc.
None of this means there can't be a god. Its just not possible remotely for science to judge that, as god is outside of, or above, nature, if it exists and is worthy of being called a god at all.