Pop Psychology Onstage in "Dear Evan Hansen"
When Kurt Weill, Ira Gershwin, and Moss Hart put together the musical "Lady in the Dark," in 1940, Freud was big. The great man's thinking had yet to come under wide attack, and psychoanalysis"at least, here in America"was still a relatively new phenomenon, a science for the privileged. Liza Elliott, the protagonist of the musical, who runs a fashion magazine called Allure, has lots of power but no outward oomph. Dep…