Maths without numbers can make you smarter!

There is such a thing as a stupid question. For example, what would happen if the Solar System was filled with soup out to Jupiter? But trying to figure out the answer can make you really smart. Former NASA roboticist turned cartoonist Randall Munroe spends his days applying physics and math to answer crazy questions. Bill Gates and Neil Gaiman are among his fans.The questions he likes best come from kids who want to know about the soup or how many humans a TREX would need to eat to survive. He tries to make science accessible and funny in his latest book, "What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions".