Ah, that’s what I meant to get at by welfare range (life-years) vs capacity for welfare (lives). I assume they’re comparing welfare ranges, but if they’re comparing capacity for welfare/lives and summing moral value, then the median response would be more pro-animal than under the other interpretation, like 50 to 100 chickens per human in life-year or welfare range terms.
Ah, that’s what I meant to get at by welfare range (life-years) vs capacity for welfare (lives). I assume they’re comparing welfare ranges, but if they’re comparing capacity for welfare/lives and summing moral value, then the median response would be more pro-animal than under the other interpretation, like 50 to 100 chickens per human in life-year or welfare range terms.