Kahneman’s research suggests there are two channels through which you decide whether or not you are happy. The current self is happy when experiencing nice things. The remembering self is happy when you look back on your life and pull up plenty of positive memories. As Kahneman points out, a two-week holiday may yield only a handful of lifelong memories. You will pull those memories out every once and a while and use them to be happy. There is a serious imbalance between the time you spend creating these memories and the time you spend enjoying them later.