Yeah, my personal guess is that animals have a place in even the ideal, most efficient agricultural system, even if it is at a lower intensity than in modern Am

Yeah, my personal guess is that animals have a place in even the ideal, most efficient agricultural system, even if it is at a lower intensity than in modern American agriculture. Sheep and cattle can graze on land that is not useful for crops. Pigs can eat food waste and reclaim those calories. Chickens can forage in suburban spaces and convert corn quite efficiently. We might be better off feeding less corn to livestock, but keep in mind field corn is one of the most productive crops in modern agriculture -- either we need to start feeding humans a lot more corn meal, or you're stuck planting a less efficient crop in place of corn. Growing corn to feed to pigs and chickens, while supplementing their diet with foraging and food waste, is not that crazy of a prospect, from a land use perspective.