Super Short Summary

What If? by Randall Munroe humorously addresses unusual scientific queries, exploring the real-world implications of hypothetical scenarios such as the consequences of the Earth ceasing to spin, a baseball pitched at nearly light speed, and constructing various extreme structures. With illustrations from Munroe’s webcomic xkcd, each chapter delves into bizarre yet scientifically sound answers to these strange questions. Some physical effects on humans are graphically described.