Extremely Loud & Incredibly Close unfolds in a non-linear structure, with key moments from the past revealed through vivid flashbacks. Much of this backward movement comes through Oskar's grandparents' chapters. Thomas Schell Sr.'s unsent letters to his son carry the reader decades earlier, to the night of the Dresden firebombing, a night that shattered his life and left him unable to speak. Grandma's narrative, too, is threaded with memories of losing her family in the war, meeting Grandpa, and the complicated years that followed.
These flashbacks don't simply fill in the backstory, they expand the novel's emotional and historical scope. By juxtaposing the bombing of Dresden with the September 11 attacks, Foer draws out parallels between different generations' traumas, showing that the shape of grief can echo across time and place.
Functionally, the flashbacks allow present-day actions to be illuminated by past events. Oskar's anxious energy, Grandpa's silence, and Grandma's guardedness all gain clarity when readers understand what each has endured. The shifts between past and present create a layered emotional resonance. Grief is never entirely in the past, and healing is never entirely complete. Instead, the novel's flashbacks suggest that the past continually informs the present and that the telling and hearing of these old stories is part of learning how to live with loss.