(EDIT: I'm just reacting/responding to the last sentence of your post, btw. I'm generally pretty stoic about the process of life, so.) I think the 'scientific

(EDIT: I'm just reacting/responding to the last sentence of your post, btw. I'm generally pretty stoic about the process of life, so.) I think the 'scientific understanding' would be that there's no such thing as 100% metaphysical certainty. However, that doesn't mean that all bets are suddenly off. So, we should probably use statistical reasoning and evidence, science-based reasoning of the sort that tells us if there's at least a minimally plausible mechanism where X could possibly work. That sort of thing. ... and, if you're hungry enough for the answers to these -- and many considerably more niche questions -- become a scientist!