Author： Randall Munroe

Publisher： Houghton Mifflin Harcourt

Fans of xkcd ask Munroe a lot of strange questions. In pursuit of answers， Munroe runs computer simulations， pores over stacks of declassified military research memos， solves differential equations， and consults with nuclear reactor operators.

The book features new and never-before-answered questions， along with updated and expanded versions of the most popular answers from the xkcd website. What If？ will be required reading for xkcd fans and anyone who loves to ponder the hypothetical.

Xkcd的追隨者們問了Munroe很多奇奇怪怪的問題，為此，Munroe不得不通過各種各樣的方式尋找答案，像是模擬計算機運行、解密軍事研究備忘錄、解開不同的方程式以及咨詢核反應(yīng)堆相關(guān)人士等等。

這本書包含了新的沒有被回答過的各種問題，以及xkcd網(wǎng)站上最受歡迎答案的最新及擴展版本。本書是喜歡思考假設(shè)問題人士的不二選擇。