What If? by Randall Munroe

What If?

By Randall Munroe

  • Release Date: 2014-09-04
  • Genre: Humour
Score: 5
From 30 Ratings
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From the creator of the wildly popular xkcd.com, 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, complemented by comics. They often predict the complete annihilation of humankind, or at least a really big explosion.


  • Fun, entertaning

    By Luigibob
    Great book to keep you entertained and make you think
  • Superb

    By Desmo46_
    Charming, funny, educational(?), a highly recommended read for all fans and non-fans of xkcd alike.
  • Great!

    By Spurs_2015
    Great book packed with really good questions and answers mixed with some fun facts and humour. Even with no scientific background it's very easy to understand and enjoy, would highly recommend.
  • Great Book

    By Steve51773
    Definitely worth a read if you're a fan of xkcd or science
  • Excellent Read.

    By Maybenextseason
    I really enjoyed this, the humour and real science is perfectly blended with mathematics too.