How could we know that they are unhappy? Photos of overcrowded farms look terrible, but animals may have different value structure, like:
warm
safe
many friends
longer life expectancy than in the forest
guaranteed access to unlimited amounts of food.
Technically, we could have two ways to measure their preferences: do they feel constant pain according to their EEG + do they want to escape at any price and even happy to be slaughtered?
How could we know that they are unhappy? Photos of overcrowded farms look terrible, but animals may have different value structure, like:
warm
safe
many friends
longer life expectancy than in the forest
guaranteed access to unlimited amounts of food.
Technically, we could have two ways to measure their preferences: do they feel constant pain according to their EEG + do they want to escape at any price and even happy to be slaughtered?