Thanks, Benito. Do we know that we shouldn't have a lot of chicken feed? My point in asking this is just that we're baking in a lot of the answer by choosing which minds we extrapolate in the first place. Now, I have no problem baking in answers -- I want to bake in my answers -- but I'm just highlighting that it's not obvious that the set of human minds is the right one to extrapolate.

BTW, I think the "brain reward pathways" between humans and chickens aren't that different. Maybe you were thinking about the particular, concrete stimuli that are found to be rewarding rather than the general architecture.