How can a person who knows nothing be the director of a pig farm? When you were born, you learned nothing. You have to learn step by step, learn to walk, learn to talk and learn to eat. These are all things to learn. Since you know nothing, it's good to learn. What is more difficult for pigs? As long as you learn some knowledge about raising pigs, you can become a factory director instead of feeding pigs, so you can get a general understanding of what raising pigs is all about through learning.