Dostoyevsky’s novels are so schematic, so exaggerated, so over the top—there’s relatively little scenery, relatively few things—everything is pared down to foreground these crazily heightened scenes of drama and “scandal.” People are constantly falling down in hysterics, fainting, having nervous breakdowns, giving speeches, committing murder or suicide, having seizures, going on trial, writing insanely long letters and declaiming them in public spaces. Reading Dostoyevsky is like sitting in a room watching a small group of actors who are all trying to make eye contact with you and provoke some cathartic reaction. It’s not meant to be realistic—you know, like Oedipus Rex isn’t about killing your father and sleeping with your mother—it’s a play that depicts certain universal dramas and tensions through the bizarre and hyperbolic example of a king who kills his father and sleeps with his mother.
From this interview with Elif Batuman.