What aspect makes factual evidence effective in Schlosser's narrative?

The effectiveness of factual evidence in Schlosser's narrative is primarily showcased through its ability to illustrate a consistency in practices that pervade the fast-food industry. This consistency serves as a crucial element in understanding the broader implications of fast food on society, health, and the economy, demonstrating how similar methods and business strategies are employed across various chains. By grounding his observations in factual evidence, Schlosser elevates his argument, giving readers a clearer picture of the systemic issues and practices that define the industry. This reliance on factual consistency allows for a more robust analysis, encouraging readers to consider the pervasive nature of these practices and their impact on workers, consumers, and communities alike. In doing so, it strengthens his overall message about the complexities and consequences of the fast food sector.