Thanks for writing this interesting article! I had a few objections, but it looks like most of them have been covered.
One thing I would still like to mention is using wild animals as the bar to cross. This only makes sense if the replacement is 1:1, meaning that if we didn’t farm x amount of animals, there would have existed an additional x amount of wild animals (not sure if x should be individuals, or some sort of “sentience units” that weigh vertebrates more for example). If this were the case then setting 0 equal to the expected welfare of a wild animal makes sense, because that would be what the farm animal is replacing, and therefore that would define whether it’s good for the farm animal to exist or not.
Although I don’t think the replacement is 1:1, but I don’t know in which direction it should lean. In terms of individuals I think farm animals replace many wild animals, especially invertebrates. More farm animals result in more plant crops to feed them, meaning more pesticides, meaning fewer wild bugs. On the other hand, the density of highly sentient animals are higher on farms than on wild land.
The danger of using wild animals as the bar when the replacement is not 1:1 could be the following example (with made up numbers): If we instead place the 0 at non-existence, imagine wild animals are actually at −5, and farm animals are at −1, but 10 farm animals replace 1 wild animal. Then every farm animal that exists actually decreases total utility by 0.5 (it subtracts 1 but adds −5/10). But using wild animals as the bar you’d think every farm animal increases total utility by 4
Thanks for the reply. I completely agree that we should look for interventions that improve welfare most per $, and that those, at least for now, are the ones focusing on animals and not humans. 100% of my donations at the moment actually goes to animal causes.
That’s a very interesting table about welfare range per calorie consumption. It caused me to update away from my belief that in the ideal far future we should dedicate most resources to creating more happier humans (or the next generation of the most sentient beings), and towards the belief that the existence of some lower sentience but super efficient beings, such as bees, would be a great thing. It doesn’t change any near term things for me or have any actionable consequences though, as I think we’re still gonna be in the “reduce suffering” part of history for a very long time before we get to the “increase bliss” part