Summary of What If?

"What If?: Serious Scientific Answers to Absurd Hypothetical Questions" is a book by Randall Munroe that explores bizarre and hypothetical questions using scientific principles and rigorous analysis. The book takes seemingly silly questions and investigates them in depth, providing detailed and often surprising answers that blend humor with scientific accuracy. Through a series of thought experiments and calculations, Munroe tackles questions like "What if every person on Earth aimed a laser pointer at the Moon at the same time?" and "What if you tried to hit a baseball pitched at 90% the speed of light?" The book appeals to both science buffs and casual readers, offering a humorous and informative look at the world through the lens of absurd hypothetical scenarios.