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Get the Summary of Mary Roach's Replaceable You in 20 minutes. Bestselling science writer Mary Roach's Replaceable You (2025) takes a captivating journey through humanity's persistent efforts to mend, replace, and even enhance the human body. Eschewing futuristic hype, Roach provides a grounded and sometimes humorous reality check, exploring the historical struggles, ingenious innovations, and profound complexities inherent in this quest. From ancient remedies to cutting-edge bioengineering, Roach reveals that even the simplest biological components are marvels of design, proving incredibly difficult to replicate...