 You say that another way we can thwart habituation is by seeking out opportunities to learn. Talk about this idea. How is curiosity and learning, how can they be engines or defenses against habituation? So when you ask people, what is a good life? What do you see as a good life? Usually people will say, I want to feel joy, right? I don't want to feel sad. And they usually say, what I want meaning in my life.