For me to consider God as factual I would have to run "God-facts" through the scientific method. Simply, if there are no God-facts which I can accumulate then there is no debate to be had.
If I am strolling down a dusty road and in my purview a burning bush speaks to me: a) I've had a psychotic snap, or any other inumerable explainations....
Further, to clarify, perhaps God is not meant to be taken as fact..but to only exist through faith.
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Predict the "end of science" at your peril!