Why Is It Hard to Know What You Find Fun?

Why, I often wonder, is it so hard to Be Gretchen and to know what I find fun? I'd think that nothing would be more obvious to me than my own nature, but it's a constant challenge to be myself.

Other people have told me that they also find it difficult to identify what they like to do, for work and fun. And I've identified one reason for that.

Scientists, such as Daniel Gilbert in Stumbling on Happiness, point out that we're all more alike than we think. And that's true. But I think it's also...