For a long time, mainstream scientists were deeply skeptical about the theory of multiple universes — but comic-book writers immediately saw the creative possibilities. University of Minnesota physics professor (and author of the book "The Physics of Superheroes") James Kakalios pays a visit to Source Comics & Games in St. Paul.Plus, the series finale of the show “St. Elsewhere,” where we learn that the entire show had been a fantasy of a boy with autism named Tommy Westphall.

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