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Have a What If? question you’ve always wanted me to answer? Preorder What If? 2 (all US preorders eligible) and enter our contest for a chance to win a dedicated What If blog post and a comic inspired by your question! Enter here: sites.prh.com/whatif2

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You have no need to respond, as I did not preorder, but what would happen if someone trapped the light from a laser pointer in a box of mirrors? would the laser diminish and die out? If it matters I got the first edition of this book.