"I've been listening to how the Roman Empire fell and all I can say is, it didn't fall nearly fast enough!" is a quote from Iggy in James Patterson's book Fang. This comment humorously suggests that the decline of the Roman Empire happened gradually and perhaps too slowly for some, reflecting a sense of impatience or desire for a quicker end.

Overall, the quote highlights a provocative viewpoint about the historical collapse, using a modern frustration to compare with a significant historical event. It blends humor and critique, demonstrating how characters in Patterson's novel may use sharp wit to express their feelings about complex events or processes.