In a sense, Gene and Finny have been each other's doubles since the beginning of the novel. In the first description of the boys standing together by the tree, the narrator makes clear that they resemble each other physically to a remarkable extent. Their heights and weights are nearly identical, although Funny weighs about ten pounds more than Gene. But the crucial ten pounts, Gene notes with envy, are distributed evenly over Finny's body. Finny, therefore, does not look like Gene with extra weight. Instead, next to Gene, Finny's entire physique looks more fille dout, somehow more striking. This weight difference, "galling" to Gene, seems to prove that Finny stands as the larger, more substantion, somehow more generous, of the two. For Gene, then, Finny represents another version of himself, only better and more powerful.
Without even trying, Finny shows Gene up in the most basic, physical way. Even more frustrating, Finny accepts his shorter than average height without difficulty, while the unconfident Gene tries to embellish his own physical stature by adding a half-inch. When Finny hears this, he virtually cuts Gene down to size by attesting flatly that they are the same height. Gene cannot lie about himself, it semms, because his other self - as like him as his shadow - will speak the truth.
The "shadow" side of the double expressed Gene's mixed feelings about Finny from the start. Some critics have