You're on a "Physics of Comic Book Superheroes" thread here.
Actually, Calvin and Hobbes is a deep psychological study inspired by Tom Tryon's The Other, in which you get maybe 2/3 through the book before you realize the "bad" twin is already dead and the "good" twin is doing everything.
65 posted on 02/17/2004 12:55:19 PM PST by VadeRetro
Watterston took inspiration from quite a few sources, but I believe "The Secret Life of Walter Mitty", Little Nemo in Slumberland, and some old Chuck Jones cartoons were the primary inspirations. Calvin was named after John Calvin and Hobbes after Thomas Hobbes.