Do pigs in pigsty "think about life"?

The intelligence level of pigs is very high, but that is under the condition of training. Humans without intellectual development are like beasts, not to mention pigs. In order to understand that I am more cruel, pigs have been caged and slaughtered for thousands of years. In their cognition, this is normal. If pigs can break through this thinking limitation and want to escape from prison, human beings have already established utopia. Don't stand on the commanding heights of thinking and ask a guy with a lower level of thinking than you. This is not only unfair, but also arrogant. I hope it will be helpful to the subject. I've thought about this before. My answer to this question is that pigs can't think about life. First of all, the pig is unconscious, in other words, it can't know itself. He can't even know himself, let alone think about life. Just like the evolution of human beings, it should be a great moment for human beings to become conscious and realize their existence at a certain moment.