Questions of personality have vexed mankind from the dawn of personhood: can people change? How do others perceive me? What is the difference between normal and pathological behavior? One's personality is so pervasive and all-important that it presents a clinical paradox of sorts: it is hard to assess our own personality, and impossible to overlook that of others.
We’ve all wished we could be someone else, whether it’s just polishing a few dull spots in our personality or fully rewriting the story of our lives, Jay Gatsby-style. If you're a procrastinator, you may have wished you could be more productive; if you're gloomy, you may have hoped you could be more optimistic; if you're shy, you may have longed to be the life of the party.