I think that's a question we haven't really answered yet, but I think something that has the potential to be an answer is that maybe happiness has an awful lot to do with the contents of our moment-to-moment experiences.
Je pense que nous n'y avons pas encore vraiment répondu, mais que si réponse il y a, elle a, je pense, un lien assez étroit avec le contenu de nos expériences moment par moment.