Complex sentence: That said, Hemingway's sparse style allows the reader to re-create the "background" of the story, which recalls Hemingway's iceberg theory--most of the story's content is actually submerged for the reader to imagine.
Split into simpler sentences: That said, Hemingway's sparse style allows the reader to re-create the "background" of the story, which recalls Hemingway's iceberg theory. Most of the story's content is actually submerged for the reader to imagine.