How is what I stated an "argument based on faith?" An axiom is a presumed truth; it forms the basis of investigation, which may provide a reason for revising the original presumption. It's about as essential to scientific reasoning as one can get.
--- The assumption is that spirits, souls, independent minds, Leibnizian monads, idealism, etc., etc., are all mystical or religious nonsense. There is no way to know if this is true. Therefore, it is an argument made on an ungrounded assumption, that is, an argument based on faith.
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