[alienicecream]

> Even if there's some exotic whatsit we have somehow not been able to detect thus far, something that lives outside of our existing scientific theories, that would simply require updating those theories, and then figuring out how to follow the same steps biological systems do.

Assuming the whatsit could fit into the materialistic/mechanistic framework. But that's not necessarily the case.

> You similarly have no direct evidence that there isn't a bottle A&W root bear on Europa, but our understanding of the history of humanity (and root beer and space travel) makes it very unlikely.

I didn't make a claim, I asked you how you can be so sure of your claim.