Newton's Flaming Laser Sword (yes this is a real thing) is a philosophical razor coined by Australian mathematician Mike Alder in 2004, which states that:
what cannot be settled by experiment is not worth debating.
Since God exists outside of the observable universe, there would be no way to observe God. There would also be no experiment we could do to prove or falsify God's existence, since God exists independently of the universe. Given this, according to NFLS, God's existence is not worth debating. Also, since there is no experiment to prove or disprove God, the notion of his existence is unfalsifiable, and therefore unscientific.
What are your guys' thoughts on this?