

The work was stimulating enough-indeed, more stimulating than the time Munroe spent in class back at Christopher Newport, much of which he passed by doodling in the margins of his notebooks. “My job was to make the robot drive around the lab,” Munroe says, “so I was less worried about navigating over rocks on Mars and more about dodging chairs and trying not to hit the children of any of the Langley executives.”

Rex were released in New York City, how many humans would it need to eat per day to stay alive? (About half a human daily, or 55,000 calories worth.) Could you eat a cloud? (Maybe, but first you’d have to squeeze out all of the air, and the cloud would have to start out no bigger than a house, since one that size would contain about a liter of water, which is all the human stomach can hold at one time.) How long would it take you to fill an Olympic size swimming pool with your own saliva? (About 8,345 years, given that the average human produces about 500 milliliters of saliva a day.) What If? 2, like the original, is stuffed with questions that are fanciful in the asking, but perfectly-and playfully-informative in the answering.

There’s a little bit of Amelia in all of us-and Munroe has made it his mission to keep our curiosity satisfied. They’re just sort of pushing concepts together in surprising ways.” “I mean, why soup? The questions I get from little kids are always the best, because they’re not being put together by adults, who understand lots of stuff. “I loved the specificity of the question,” Munroe says.
