As one of science fiction writer Arthur C. Clarke’s adages goes: Any sufficiently advanced technology is indistinguishable from magic. So if you happen to be the king of France in the 1700s and there’s a doctor waving around a magic wand and claiming to be able to pull a remedy for anything that ails you seemingly from thin air, who better to take a look than famed scientist and inventor Ben Franklin? That mystical place between science and magic, the supernatural and the real, sits at the heart of Chicago Children’s Theatre’s world premiere production of “Mesmerized: A Ben Franklin...