What If?

This book is not purchasable in your country. Please select another book.

Listen to a sample

What to expect

From the creator of the wildly popular xkcd, What If? gives hilarious and informative answers to important questions you probably never thought to ask.

Millions visit xkcd.com each week to read Randall Munroe's iconic webcomic. Fans ask him a lot of strange questions. How fast can you hit a speed bump, driving, and live? When (if ever) did the sun go down on the British Empire? When will Facebook contain more profiles of dead people than living? How many humans would a T Rex rampaging through New York need to eat a day?

In pursuit of answers, Munroe runs computer simulations, pores over stacks of declassified military research memos, solves differential equations and consults nuclear reactor operators. His responses are masterpieces of clarity and hilarity. They often predict the complete annihilation of humankind - or at least a really big explosion.

This audiobook edition is read by geek icon Wil Wheaton (Star Trek: The Next Generation, Stand by Me, The Big Bang Theory) and has been adapted for audio in collaboration with the author.

(P)2014 Blackstone Audio

Critics Review

  • With this book and with XKCD, you’re a kid with a chemistry set all over again. [Randall Munroe’s] enthusiasm for all things scientific is infectious . . . required reading for grown-ups, it’s just fun to remember that science is really, really cool

    REGISTER
  • Smart answers to silly questions: Randall Munroe reveals all

    GUARDIAN
  • What If? maintains a delightfully free-wheeling tone throughout, especially when complicated calculations lead to whimsical results. Despite all the hard facts and gigantic numbers, it never feels like a textbook-and you don’t have to be a rocket scientist to enjoy it

    ENTERTAINMENT WEEKLY
  • The best bathroom book you’ll ever buy…Munroe takes inane, useless and often quite pointless questions asked by real humans (mostly sent to him through his website), and turns them into beautiful expositions on the impossible that illuminate the furthest reaches, almost to the limits, of the modern sciences .The first chapter, “Q. What would happen if the Earth and all terrestrial objects suddenly stopped spinning, but the atmosphere retained its velocity?” ends with the anthropomorphized moon worrying over the state of the Earth, and, with the gravity generated by its own rotation around the Earth, saving our dying planet. The physics are real; so is the emotional content. . . The answers are all illustrated with xkcd’s trademark stick figures.. . . . and these are eminently approachable

    NEWSWEEK
  • Brilliant

    ROLLING STONE
  • What If? includes old favorites, new inquiries and the mix of expert research and accessible wit that has made Munroe a favorite among both geeks and laymen

    TIME

Subscribe to our newsletter

Sign up to get tailored content recommendations, product updates and info on new releases. Your data is your own: we commit to protect your data and respect your privacy.