What If?: Serious Scientific Answers Audio Book $2.95 at Amazon $2.95 $24 Amazon has the What If?: Serious Scientific Answers to Absurd Hypothetical Questions Audio Book for $2.95 downloaded. Randall Munroe (of xkcd fame) answers hypothetical questions that have never been answered before. Has a 396-minute runtime and over 1100 5-star reviews. $2.95 retail: $24 Report Posted by lauren816v03/30/2015 at 05:22 AM PT
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