But what’s more exciting, I think, is the emergence of a different perspective on happiness itself. We used to think that the hard part of the question “How can I be happy?” had to do with nailing down the definition of happy. But it may have more to do with the definition of I. Many researchers now believe, to varying degrees, that each of us is a community of competing selves, with the happiness of one often causing the misery of another. This theory might explain certain puzzles of everyday life, such as why addictions and compulsions are so hard to shake off, and why we insist on spending so much of our lives in worlds—like TV shows and novels and virtual-reality experiences—that don’t actually exist. And it provides a useful framework for thinking about the increasingly popular position that people would be better off if governments and businesses helped them inhibit certain gut feelings and emotional reactions.
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