Get a copy of What If? 2 and Randall’s other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen if you tried to hit a baseball pitched at 90% the speed of light? Randall Munroe is the author of the New York Times bestsellers What If? 2, How To, What If?, and Thing Explainer; the science question-and-answer blog What If?; and the popular web comic xkcd (https://xkcd.com/). A former NASA roboticist, he left the agency in 2006 to draw comics on the internet full time. Henry Reich is the creator of MinutePhysics and executive producer of MinuteEarth and MinuteFood and founder of Neptune Studios (the parent company for all three youtube channels). Credits Narrated by and based on "What If?" by Randall Munroe Written & Directed by Henry Reich Illustration and Video Editing by Lizah van der Aart Illustration and Animation by Ever Salazar Music & Sound Effects by Know Art Studios What If? The Video Series is the official adaptation of the What If? books by Randall Munroe and is produced by Neptune Studios LLC. ©2023 xkcd, inc.