Bests & Worsts Reviews from Amazon

About half (51%, according to the book, which seems about right) of the questions answered in this book are original, and have never been posted on the xkcd what if? website (https://what-if.xkcd.com/). Even though I'd already read the other 49%, I re-read them and was glad I did, as Munroe has added a few things here and there; plus, this stuff is just eminently re-readable. It's the perfect combination of irreverent, rigorous, technical, and fascinating. I look forward to every new "What If" (he posts them each Tuesday or Wednesday) and am always delighted to read the latest. Even if you've read every "What if" ever posted to the website, this book is still for you - it's especially for you! This is a great way to enjoy older questions and answers over again, updated, and to share them with new people, and the new questions and answers - never featured on the website - are delightful; I won't spoil it for you, but my favorite has to be the answer to "If a bullet with the density of a neutron star were fired from a handgun (ignoring the how) at the Earth's surface, would the Earth be destroyed?" If you have even a passing interest in science and ever enjoy daydreaming about the fantastic or the ridiculous, this book is for you. If you don't think that you enjoy those things, this book will prove to you that you do. Also, this is a really great gift idea for basically anyone in your life who can read. Kids will love it, adults will love it (I'm ordering a copy for my dad's birthday), and they will be hooked from the first page (who hasn't wondered what would happen if the Earth suddenly stopped spinning?) Gift season is coming up; thanks to this book my Christmas shopping will be a great deal easier. I don't usually write reviews, but I logged in and made an exception here. I cannot offer higher praise. Enjoy!