I'm bummed I didn't see this reply. And I ask the same questions but I favor on the side of assuming life until proven otherwise. And what is life? Yes, it gets philosophical because if a mushroom isn't alive then are we? All I know for certain is how my own brain imagines reality to be. We all share some common ideas about what reality is because we're all working with similar hardware (brains) as macro-organisms. How do we know that the yeast in our stomachs aren't daydreaming they're the center of the universe and we don't exist to them. Lol.