《What If?》出自 xkcd 網路漫畫創作者 Randall Munroe，他以科學家的嚴謹與漫畫家的幽默，回答那些「不該問卻令人好奇」的問題：若開車衝過減速丘會發生什麼？恐龍在紐約需要吃掉多少人？臉書上哪一天亡者的帳號會超越生者？
作者為此查閱軍事文件、進行模擬運算，甚至向核反應爐工程師請教，將不可能的問題化為可笑又可信的推論。本書以簡潔的漫畫與精確的科學推理，讓人驚嘆理性與荒謬並存的魅力。
xkcd 網路漫畫創作者 Randall Munroe 代表作
以科學方法回答最荒誕的假設問題
幽默、聰明又出奇嚴謹的科普經典
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.
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