The document discusses the complexity of writing a SAT essay on whether the world is changing for the better. It notes that the subject requires a nuanced understanding of many factors, as different people may view progress differently. The essay would need to explore historical contexts and future possibilities, connecting past, present and future in its narrative. It also requires maintaining a logical flow while addressing diverse aspects, with a clear thesis and coherent organization. Finally, the essay demands a mastery of language, evidence, and rhetorical devices to balance conciseness with depth of analysis.